# *Building Services Standard Solutions: a proposal to the International Alliance for Interoperability* 

# 

# 

#####  B. Medjdoub\*, P. Richens\* and N. Barnard\*\*

*\* The Martin Centre, University of Cambridge*

*\*\* Oscar Faber*

This document contains the attribute descriptions of the building
services standard components defined by the Link MCNS project "Building
Services Standard Solutions implemented in CAD". These are being
forwarded to the IAI for consideration for incorporation into the IFCs,
The attributes were defined on the basis of what was required for
selection, sizing and location of plant for the purposes of the project
.

# 

***Project partners***. The Martin Centre [University of
Cambridge](http://www.arct.cam.ac.uk/), [Oscar
Faber](http://www.oscarfaber.com/), [BSRIA](http://www.bsria.co.uk/),
[Taylor Woodrow Construction Ltd](http://www.twc.co.uk/), [The
SCI](http://www.steel-sci.org/),
[Sainsburys](http://www.sainsburys.co.uk/), Carrier, [Hamworthy Heating
Ltd](http://www.hamworthy-heating.com/),
[Woods](http://www.woods-fans.com/), [Pullen Pumps
Ltd](http://www.pullenpumps.co.uk/),
[Waterloo](http://www.waterloo.co.uk/), Delta, [Biddle Air Systems
Ltd](http://www.biddle-air.co.uk/), [Bentley Systems
Ltd](http://www.bentley.com/), [CADAC](http://www.cadac.co.uk/), [IES
Facet](http://www.ies4d.com/).

***Project abstrac**t*. This two year project was funded by EPSRC[^1]
and DETR[^2] under the LINK[^3] Meeting Client Needs through
Standardisation programme in UK. Standardisation is widely recognised as
a key element in reducing design time, cutting construction costs and
ensuring efficient building solutions. This research focuses on the
rules and parameters required to define standard plant room layouts,
ceiling voids, risers and main distribution systems. The rules define a
set of standard solutions which have been implemented in CAD.

In this project, we have used the object-based CAD programming to handle
the selection, sizing, layout and (potentially) pipe-routing for heating
and ventilating plant rooms. Our approach combines automation and
interactivity. From a simple specification of the plant room geometry
(an orthogonal polygon with known obstructions, openings and external
walls), and the heating load in kW, our software proceeds through a
number of steps. First the number and size of standard modular boilers,
pumps etc is determined from the heat load. Then a compatible optimising
3D variational solution is generated, using Constraint Logic
Programming. To do this we firstly enumerate a satisfactory topological
solution, and then refine it to form a compatible geometrical solution.
The final step generates pipe routes, using optimisation techniques to
minimise the length of pipes and the number of bends.

The solutions generated by our prototype have been tested against
conventional solutions in a benchmarking exercise. Advantages have been
underlined and suggestions for further development have been made.

The solution obtained can be modified or improved by the designer, for
which we have interactivity. Modifying the topology of the solution or
the geometry of the plant room is done directly through the graphic
interface, e.g. modifying a boiler position is done by dragging; the
system automatically updates the 3D model including the pipe-routing
while maintaining all the design rules.

This application is developed in JMDL (*Java Modeling Language*) as
embedded in MicroStation/J[^4], and ECLiPSe[^5] the constraint logic
programming system. We used JNI[^6] (*Java Native Interface*) as the
programming interface between ECLiPSe and JMDL. We used MicroStation/J
to hold the object model and for 3D rendering.

# Boiler 

+----------------------------------+-----------------+-----------------+
| ## Attributes                    | #### Type       | #### Example    |
+----------------------------------+-----------------+-----------------+
| ## Description                   | #### STRING     | ###             |
|                                  |                 | # Hamworthy P50 |
| Manufacturer                     | STRING          |                 |
|                                  |                 | Hamworthy       |
| Model Ref                        | STRING          |                 |
|                                  |                 | Purewell P50    |
| Width (mm)                       | Integer         |                 |
|                                  |                 | 532             |
| Depth (mm)                       | Integer         |                 |
|                                  |                 | 950             |
| Height (mm)                      | Integer         |                 |
|                                  |                 | 872             |
| Maintenance space left (mm)      | Integer         |                 |
|                                  |                 | 150             |
| Maintenance space right (mm)     | Integer         |                 |
|                                  |                 | 50              |
| Maintenance space front (mm)     | Integer         |                 |
|                                  |                 | 610             |
| Maintenance space back (mm)      | Integer         |                 |
|                                  |                 | 460             |
| Maintenance space above (mm)     | Integer         |                 |
|                                  |                 | 0               |
| Maintenance space below (mm)     | Integer         |                 |
|                                  |                 | 0               |
| Access width (mm)                | Integer         |                 |
|                                  |                 | 600             |
| Access height (mm)               | Integer         |                 |
|                                  |                 | 2100            |
| Output (kW)                      | Double          |                 |
|                                  |                 | 50              |
| Gas input rate (m^3^/h)          | Double          |                 |
|                                  |                 | 5.92            |
| Minimum gas inlet pressure       | Double          |                 |
| (mbar)                           |                 | 17.5            |
|                                  | Double          |                 |
| Maximum gas inlet pressure       |                 | 25              |
| (mbar)                           | Double          |                 |
|                                  |                 | 12.5            |
| Gas setting pressure (mbar)      | Integer         |                 |
|                                  |                 | 30              |
| Water content (l)                | Double          |                 |
|                                  |                 | 1.08            |
| Water flow rate (l/s)            | Double          |                 |
|                                  |                 | 0.54            |
| Minimum Water flow rate (l/s)    | Double          |                 |
|                                  |                 | 1               |
| Pressure drop (kPa)              | Double          |                 |
|                                  |                 | 6               |
| Maximum water pressure (bar)     | Double          |                 |
|                                  |                 | 0.42            |
| Minimum water pressure (bar)     | Double          |                 |
|                                  |                 | 78.8            |
| Flue gas volume (m^3^/h)         | Integer         |                 |
|                                  |                 | 200             |
| Flue gas temperature (°C)        | Integer         |                 |
|                                  |                 | 20              |
| Gas connection size (mm)         | Double          |                 |
|                                  |                 | 131             |
| Gas connection location x        | Double          |                 |
|                                  |                 | 1000            |
| Gas connection location y        | Double          |                 |
|                                  |                 | 569             |
| Gas connection location z        | Integer         |                 |
|                                  |                 | 0               |
| Gas connection direction x       | Integer         |                 |
|                                  |                 | 1               |
| Gas connection direction y       | Integer         |                 |
|                                  |                 | 0               |
| Gas connection direction z       | Integer         |                 |
|                                  |                 | 50              |
| LPHW inlet connection size (mm)  | Double          |                 |
|                                  |                 | 31              |
| LPHW inlet connection location x | Double          |                 |
|                                  |                 | 1185            |
| LPHW inlet connection location y | Double          |                 |
|                                  |                 | 269             |
| LPHW inlet connection location z | Integer         |                 |
|                                  |                 | 0               |
| LPHW inlet connection direction  | Integer         |                 |
| x                                |                 | 1               |
|                                  | Integer         |                 |
| LPHW inlet connection direction  |                 | 0               |
| y                                | Integer         |                 |
|                                  |                 | 50              |
| LPHW inlet connection direction  | Double          |                 |
| z                                |                 | 328.5           |
|                                  | Double          |                 |
| LPHW outlet connection size (mm) |                 | 1050            |
|                                  | Double          |                 |
| LPHW outlet connection location  |                 | 573             |
| x                                | Integer         |                 |
|                                  |                 | 0               |
| LPHW outlet connection location  | Integer         |                 |
| y                                |                 | 1               |
|                                  | Integer         |                 |
| LPHW outlet connection location  |                 | 0               |
| z                                | Integer         |                 |
|                                  |                 | 206             |
| LPHW outlet connection direction | Double          |                 |
| x                                |                 | 266             |
|                                  | Double          |                 |
| LPHW outlet connection direction |                 | 684             |
| y                                | Double          |                 |
|                                  |                 | 872             |
| LPHW outlet connection direction | Integer         |                 |
| z                                |                 | 0               |
|                                  | Integer         |                 |
| Flue connection size (mm)        |                 | 0               |
|                                  | Integer         |                 |
| Flue connection location x       |                 | 1               |
|                                  | Integer         |                 |
| Flue connection location y       |                 | 5               |
|                                  | Double          |                 |
| Flue connection location z       |                 | 0               |
|                                  | Double          |                 |
| Flue connection direction x      |                 | 0               |
|                                  | Double          |                 |
| Flue connection direction y      |                 | 0               |
|                                  | Integer         |                 |
| Flue connection direction z      |                 | 0               |
|                                  | Integer         |                 |
| Electrical connection size (mm)  |                 | 0               |
|                                  | Integer         |                 |
| Electrical connection location x |                 | 0               |
|                                  | Double          |                 |
| Electrical connection location y |                 | 6               |
|                                  | Double          |                 |
| Electrical connection location z |                 | 6               |
|                                  | Double          |                 |
| Electrical connection direction  |                 | 1               |
| x                                | Double          |                 |
|                                  |                 | 50              |
| Electrical connection direction  |                 |                 |
| y                                |                 |                 |
|                                  |                 |                 |
| Electrical connection direction  |                 |                 |
| z                                |                 |                 |
|                                  |                 |                 |
| Running Current (Amps)           |                 |                 |
|                                  |                 |                 |
| Starting Current (Amps)          |                 |                 |
|                                  |                 |                 |
| Phases                           |                 |                 |
|                                  |                 |                 |
| Weight (kg)                      |                 |                 |
+----------------------------------+-----------------+-----------------+

# Pump 

+----------------------------------+-----------------+-----------------+
| Attributes                       | ### Type        | Example         |
+----------------------------------+-----------------+-----------------+
| ## Description                   | #### STRING     | Pullen          |
|                                  |                 | belt-driven     |
| Manufacturer                     | STRING          |                 |
|                                  |                 | Pullen          |
| Model Ref                        | STRING          |                 |
|                                  |                 | Serie C50L-2c   |
| Width (mm)                       | Integer         |                 |
|                                  |                 | 550             |
| Depth (mm)                       | Integer         |                 |
|                                  |                 | 650             |
| Height (mm)                      | Integer         |                 |
|                                  |                 | 1000            |
| Maintenance space left (mm)      | Integer         |                 |
|                                  |                 | 0               |
| Maintenance space right (mm)     | Integer         |                 |
|                                  |                 | 0               |
| Maintenance space front (mm)     | Integer         |                 |
|                                  |                 | 600             |
| Maintenance space back (mm)      | Integer         |                 |
|                                  |                 | 600             |
| Maintenance space above (mm)     | Integer         |                 |
|                                  |                 | 0               |
| Maintenance space below (mm)     | Integer         |                 |
|                                  |                 | 0               |
| Access width (mm)                | Integer         |                 |
|                                  |                 | 600             |
| Access height (mm)               | Integer         |                 |
|                                  |                 | 2100            |
| Power (kW)                       | Double          |                 |
|                                  |                 | 50              |
| Water Flow Rate (l/s)            | Double          |                 |
|                                  |                 | 100             |
| Pressure Drop (kPa)              | Double          |                 |
|                                  |                 | 60              |
| LPHW inlet connection size (mm)  | Integer         |                 |
|                                  |                 | 50              |
| LPHW inlet connection location x | Double          |                 |
|                                  |                 | 275             |
| LPHW inlet connection location y | Double          |                 |
|                                  |                 | 50              |
| LPHW inlet connection location z | Double          |                 |
|                                  |                 | 1500            |
| LPHW inlet connection direction  | Integer         |                 |
| x                                |                 | 0               |
|                                  | Integer         |                 |
| LPHW inlet connection direction  |                 | 0               |
| y                                | Integer         |                 |
|                                  |                 | 1               |
| LPHW inlet connection direction  | Integer         |                 |
| z                                |                 | 50              |
|                                  | Double          |                 |
| LPHW outlet connection size (mm) |                 | 50              |
|                                  | Double          |                 |
| LPHW outlet connection location  |                 | 210             |
| x                                | Double          |                 |
|                                  |                 | 1500            |
| LPHW outlet connection location  | Integer         |                 |
| y                                |                 | 0               |
|                                  | Integer         |                 |
| LPHW outlet connection location  |                 | 0               |
| z                                | Integer         |                 |
|                                  |                 | 1               |
| LPHW outlet connection direction | Integer         |                 |
| x                                |                 | 5               |
|                                  | Double          |                 |
| LPHW outlet connection direction |                 | 0               |
| y                                | Double          |                 |
|                                  |                 | 0               |
| LPHW outlet connection direction | Double          |                 |
| z                                |                 | 0               |
|                                  | Integer         |                 |
| Electrical connection size (mm)  |                 | 0               |
|                                  | Integer         |                 |
| Electrical connection location x |                 | 0               |
|                                  | Integer         |                 |
| Electrical connection location y |                 | 0               |
|                                  | Double          |                 |
| Electrical connection location z |                 | 90              |
|                                  | Double          |                 |
| Electrical connection direction  |                 | 90              |
| x                                | Double          |                 |
|                                  |                 | 3               |
| Electrical connection direction  | Double          |                 |
| y                                |                 | 20              |
|                                  |                 |                 |
| Electrical connection direction  |                 |                 |
| z                                |                 |                 |
|                                  |                 |                 |
| Running Current (Amps)           |                 |                 |
|                                  |                 |                 |
| Starting Current (Amps)          |                 |                 |
|                                  |                 |                 |
| Phases                           |                 |                 |
|                                  |                 |                 |
| Weight (kg)                      |                 |                 |
+----------------------------------+-----------------+-----------------+

# Pressurisation unit 

+----------------------------------+-----------------+-----------------+
| Attributes                       | ### Type        | Example         |
+----------------------------------+-----------------+-----------------+
| ## Description                   | #### STRING     | Pressurisation  |
|                                  |                 | Unit            |
| Manufacturer                     | STRING          |                 |
|                                  |                 | Pullen          |
| Model Ref                        | STRING          |                 |
|                                  |                 | Pulpress 2000   |
| Width (mm)                       | Integer         | FD50            |
|                                  |                 |                 |
| Depth (mm)                       | Integer         | 725             |
|                                  |                 |                 |
| Height (mm)                      | Integer         | 615             |
|                                  |                 |                 |
| Maintenance space left (mm)      | Integer         | 1740            |
|                                  |                 |                 |
| Maintenance space right (mm)     | Integer         | 600             |
|                                  |                 |                 |
| Maintenance space front (mm)     | Integer         | 0               |
|                                  |                 |                 |
| Maintenance space back (mm)      | Integer         | 600             |
|                                  |                 |                 |
| Maintenance space above (mm)     | Integer         | 300             |
|                                  |                 |                 |
| Maintenance space below (mm)     | Integer         | 0               |
|                                  |                 |                 |
| Access width (mm)                | Integer         | 0               |
|                                  |                 |                 |
| Access height (mm)               | Integer         | 600             |
|                                  |                 |                 |
| System Volume (l)                | Double          | 2100            |
|                                  |                 |                 |
| System Temperature (°C)          | Integer         | 80              |
|                                  |                 |                 |
| Vessel Volume (l)                | Double          | 82              |
|                                  |                 |                 |
| Fill Pressure (bar)              | Double          | 50              |
|                                  |                 |                 |
| Static head (bar)                | Double          | 5.5             |
|                                  |                 |                 |
| Antifreeze percentage (%)        | Integer         | 1.5             |
|                                  |                 |                 |
| Maximum Temperature (°C)         | Integer         | 20              |
|                                  |                 |                 |
| Mains supply connection size     | Integer         | 100             |
| (mm)                             |                 |                 |
|                                  | Double          | 15              |
| Mains supply location x          |                 |                 |
|                                  | Double          | -100            |
| Mains supply location y          |                 |                 |
|                                  | Double          | 400             |
| Mains supply location z          |                 |                 |
|                                  | Integer         | 1550            |
| Mains supply direction x         |                 |                 |
|                                  | Integer         | 0               |
| Mains supply direction y         |                 |                 |
|                                  | Integer         | -1              |
| Mains supply direction z         |                 |                 |
|                                  | Integer         | 0               |
| System fill connection size (mm) |                 |                 |
|                                  | Double          | 15              |
| System fill connection location  |                 |                 |
| x                                | Double          | -25             |
|                                  |                 |                 |
| System fill connection location  | Double          | 500             |
| y                                |                 |                 |
|                                  | Integer         | 1650            |
| System fill connection location  |                 |                 |
| z                                | Integer         | 0               |
|                                  |                 |                 |
| System fill connection direction | Integer         | -1              |
| x                                |                 |                 |
|                                  | Integer         | 0               |
| System fill connection direction |                 |                 |
| y                                | Double          | 5               |
|                                  |                 |                 |
| System fill connection direction | Double          | 0               |
| z                                |                 |                 |
|                                  | Double          | 0               |
| Electrical connection size (mm)  |                 |                 |
|                                  | Integer         | 0               |
| Electrical connection location x |                 |                 |
|                                  | Integer         | 0               |
| Electrical connection location y |                 |                 |
|                                  | Integer         | 0               |
| Electrical connection location z |                 |                 |
|                                  | Double          | 1               |
| Electrical connection direction  |                 |                 |
| x                                | Double          | 0.37            |
|                                  |                 |                 |
| Electrical connection direction  | Double          | 3.2             |
| y                                |                 |                 |
|                                  | Double          | 3.2             |
| Electrical connection direction  |                 |                 |
| z                                | Double          | 1               |
|                                  |                 |                 |
| Motor Size (kW)                  |                 | 105             |
|                                  |                 |                 |
| Running Current (Amps)           |                 |                 |
|                                  |                 |                 |
| Starting Current (Amps)          |                 |                 |
|                                  |                 |                 |
| Phases                           |                 |                 |
|                                  |                 |                 |
| Weight (kg)                      |                 |                 |
+----------------------------------+-----------------+-----------------+

# Panel board 

+----------------------------------+-----------------+-----------------+
| Attributes                       | ### Type        | Example         |
+----------------------------------+-----------------+-----------------+
| ## Description                   | #### STRING     | Panel board     |
|                                  |                 |                 |
| Manufacturer                     | STRING          | Bill            |
|                                  |                 |                 |
| Model Ref.                       | STRING          | BT206           |
|                                  |                 |                 |
| Width (mm)                       | Integer         | 400             |
|                                  |                 |                 |
| Depth (mm)                       | Integer         | 150             |
|                                  |                 |                 |
| Height (mm)                      | Integer         | 770             |
|                                  |                 |                 |
| Maintenance space left (mm)      | Integer         | 400             |
|                                  |                 |                 |
| Maintenance space right (mm)     | Integer         | 400             |
|                                  |                 |                 |
| Maintenance space front (mm)     | Integer         | 400             |
|                                  |                 |                 |
| Maintenance space back (mm)      | Integer         | 0               |
|                                  |                 |                 |
| Maintenance space above (mm)     | Integer         | 1200            |
|                                  |                 |                 |
| Maintenance space below (mm)     | Integer         | 1100            |
|                                  |                 |                 |
| Access width (mm)                | Integer         | 600             |
|                                  |                 |                 |
| Access height (mm)               | Integer         | 2100            |
|                                  |                 |                 |
| Incomer size (No)                | Integer         | 200             |
|                                  |                 |                 |
| Outgoing ways (No)               | Integer         | 6               |
|                                  |                 |                 |
| Incoming cable tray connection   | Integer         | 225             |
| size (mm)                        |                 |                 |
|                                  | Double          | 200             |
| Incoming cable tray connection   |                 |                 |
| location x                       | Double          | 75              |
|                                  |                 |                 |
| Incoming cable tray connection   | Double          | 0               |
| location y                       |                 |                 |
|                                  | Integer         | 0               |
| Incoming cable tray connection   |                 |                 |
| location z                       | Integer         | 1               |
|                                  |                 |                 |
| Incoming cable tray connection   | Integer         | 0               |
| direction x                      |                 |                 |
|                                  | Integer         | 300             |
| Incoming cable tray connection   |                 |                 |
| direction y                      | Double          | 200             |
|                                  |                 |                 |
| Incoming cable tray connection   | Double          | 75              |
| direction z                      |                 |                 |
|                                  | Double          | 770             |
| Outgoing cable tray connection   |                 |                 |
| size (mm)                        | Integer         | 0               |
|                                  |                 |                 |
| Outgoing cable tray connection   | Integer         | 1               |
| location x                       |                 |                 |
|                                  | Integer         | 0               |
| Outgoing cable tray connection   |                 |                 |
| location y                       | Double          | 60              |
|                                  |                 |                 |
| Outgoing cable tray connection   |                 |                 |
| location z                       |                 |                 |
|                                  |                 |                 |
| Outgoing cable tray connection   |                 |                 |
| direction x                      |                 |                 |
|                                  |                 |                 |
| Outgoing cable tray connection   |                 |                 |
| direction y                      |                 |                 |
|                                  |                 |                 |
| Outgoing cable tray connection   |                 |                 |
| direction z                      |                 |                 |
|                                  |                 |                 |
| Weight (kg)                      |                 |                 |
+----------------------------------+-----------------+-----------------+

# Fan 

+----------------------------------+-----------------+-----------------+
| ## Attributes                    | #### Type       | Example         |
+----------------------------------+-----------------+-----------------+
| ## Description                   | #### STRING     | Fan             |
|                                  |                 |                 |
| Manufacturer                     | STRING          | Woods           |
|                                  |                 |                 |
| Model Ref.                       | STRING          | 180             |
|                                  |                 |                 |
| Width (mm)                       | Integer         | 1130            |
|                                  |                 |                 |
| Depth (mm)                       | Integer         | 1200            |
|                                  |                 |                 |
| Height (mm)                      | Integer         | 1200            |
|                                  |                 |                 |
| Maintenance space left (mm)      | Integer         | 0               |
|                                  |                 |                 |
| Maintenance space right (mm)     | Integer         | 0               |
|                                  |                 |                 |
| Maintenance space front (mm)     | Integer         | 600             |
|                                  |                 |                 |
| Maintenance space back (mm)      | Integer         | 0               |
|                                  |                 |                 |
| Maintenance space above (mm)     | Integer         | 0               |
|                                  |                 |                 |
| Maintenance space below (mm)     | Integer         | 0               |
|                                  |                 |                 |
| Access width (mm)                | Integer         | 600             |
|                                  |                 |                 |
| Access height (mm)               | Integer         | 2100            |
|                                  |                 |                 |
| Power (kW)                       | Double          | 50              |
|                                  |                 |                 |
| Air Flow Rate (m^3^/s)           | Double          | 5               |
|                                  |                 |                 |
| Pressure drop (Pa)               | Double          | 1500            |
|                                  |                 |                 |
| Sound power (dBA)                | Double          | 80              |
|                                  |                 |                 |
| Outlet connection size (mm)      | Integer         | 50              |
|                                  |                 |                 |
| Outlet connection location x     | Double          | 328.5           |
|                                  |                 |                 |
| Outlet connection location y     | Double          | 950             |
|                                  |                 |                 |
| Outlet connection location z     | Integer         | 269             |
|                                  |                 |                 |
| Outlet connection direction x    | Integer         | 0               |
|                                  |                 |                 |
| Outlet connection direction y    | Integer         | 1               |
|                                  |                 |                 |
| Outlet connection direction z    | Integer         | 0               |
|                                  |                 |                 |
| Electrical connection size (mm)  | Integer         | 1               |
|                                  |                 |                 |
| Electrical connection location x | Double          | 328.5           |
|                                  |                 |                 |
| Electrical connection location y | Double          | 950             |
|                                  |                 |                 |
| Electrical connection location z | Double          | 269             |
|                                  |                 |                 |
| Electrical connection direction  | Integer         | 0               |
| x                                |                 |                 |
|                                  | Integer         | 1               |
| Electrical connection direction  |                 |                 |
| y                                | Integer         | 0               |
|                                  |                 |                 |
| Electrical connection direction  | Double          | 6               |
| z                                |                 |                 |
|                                  | Double          | 6               |
| Running Current (Amps)           |                 |                 |
|                                  | Double          | 1               |
| Starting Current (Amps)          |                 |                 |
|                                  | Double          | 100             |
| Phases                           |                 |                 |
|                                  |                 |                 |
| Weight (kg)                      |                 |                 |
+----------------------------------+-----------------+-----------------+

# Fan coil unit 

+----------------------------------+-----------------+-----------------+
| ## Attributes                    | #### Type       | String          |
+----------------------------------+-----------------+-----------------+
| ## Description                   | #### STRING     | Fan coil unit   |
|                                  |                 |                 |
| Manufacturer                     | STRING          | Biddle          |
|                                  |                 |                 |
| Model Ref.                       | STRING          | A1              |
|                                  |                 |                 |
| Width (mm)                       | Integer         | 1100            |
|                                  |                 |                 |
| Depth (mm)                       | Integer         | 915             |
|                                  |                 |                 |
| Height (mm)                      | Integer         | 250             |
|                                  |                 |                 |
| Maintenance space left (mm)      | Integer         | 200             |
|                                  |                 |                 |
| Maintenance space right (mm)     | Integer         | 200             |
|                                  |                 |                 |
| Maintenance space front (mm)     | Integer         | 200             |
|                                  |                 |                 |
| Maintenance space back (mm)      | Integer         | 200             |
|                                  |                 |                 |
| Maintenance space above (mm)     | Integer         | 100             |
|                                  |                 |                 |
| Maintenance space below (mm)     | Integer         | 100             |
|                                  |                 |                 |
| Access width (mm)                | Integer         | 800             |
|                                  |                 |                 |
| Access height (mm)               | Integer         | 500             |
|                                  |                 |                 |
| Outlet duct connection size (mm) | Double          | 200             |
|                                  |                 |                 |
| Outlet duct connection location  | Double          | 1200            |
| x                                |                 |                 |
|                                  | Double          | 457.5           |
| Outlet duct connection location  |                 |                 |
| y                                | Double          | 125             |
|                                  |                 |                 |
| Outlet duct connection location  | Integer         | 1               |
| z                                |                 |                 |
|                                  | Integer         | 0               |
| Outlet duct connection direction |                 |                 |
| x                                | Integer         | 0               |
|                                  |                 |                 |
| Outlet duct connection direction | Integer         | 3               |
| y                                |                 |                 |
|                                  | Double          | 305             |
| Outlet duct connection direction |                 |                 |
| z                                | Double          | 200             |
|                                  |                 |                 |
| Outlet duct spigot number        | Double          | -100            |
|                                  |                 |                 |
| Outlet duct spigot pitch         | Double          | 457.5           |
|                                  |                 |                 |
| Inlet duct connection size (mm)  | Double          | 125             |
|                                  |                 |                 |
| Inlet duct connection location x | Integer         | -1              |
|                                  |                 |                 |
| Inlet duct connection location y | Integer         | 0               |
|                                  |                 |                 |
| Inlet duct connection location z | Integer         | 0               |
|                                  |                 |                 |
| Inlet duct connection direction  | Integer         | 3               |
| x                                |                 |                 |
|                                  | Double          | 305             |
| Inlet duct connection direction  |                 |                 |
| y                                | Double          | 2.5             |
|                                  |                 |                 |
| Inlet duct connection direction  | Double          | 5               |
| z                                |                 |                 |
|                                  | Double          | 0.1             |
| Inlet duct spigot number         |                 |                 |
|                                  | Double          | 4.94            |
| Inlet duct spigot pitch          |                 |                 |
|                                  | Double          | 6               |
| Cooling output (kW)              |                 |                 |
|                                  | Double          | 15              |
| Cooling coil water content (l)   |                 |                 |
|                                  | Double          | 771             |
| Cooling coil water flow rate     |                 |                 |
| (l/s)                            | Double          | 1205            |
|                                  |                 |                 |
| Cooling coil pressure drop (bar) | Double          | 93              |
|                                  |                 |                 |
| Maximum CHW pressure (bar)       | Integer         | 0               |
|                                  |                 |                 |
| CHW inlet connection size (mm)   | Integer         | 1               |
|                                  |                 |                 |
| CHW inlet connection location x  | Integer         | 0               |
|                                  |                 |                 |
| CHW inlet connection location y  | Double          | 15              |
|                                  |                 |                 |
| CHW inlet connection location z  | Double          | 799             |
|                                  |                 |                 |
| CHW inlet connection direction x | Double          | 1310            |
|                                  |                 |                 |
| CHW inlet connection direction y | Double          | 121             |
|                                  |                 |                 |
| CHW inlet connection direction z | Integer         | 0               |
|                                  |                 |                 |
| CHW outlet connection size (mm)  | Integer         | 1               |
|                                  |                 |                 |
| CHW outlet connection location x | Integer         | 0               |
|                                  |                 |                 |
| CHW outlet connection location y | Double          | 15              |
|                                  |                 |                 |
| CHW outlet connection location z | Double          | 770             |
|                                  |                 |                 |
| CHW outlet connection direction  | Double          | 915             |
| x                                |                 |                 |
|                                  | Double          | 0               |
| CHW outlet connection direction  |                 |                 |
| y                                | Integer         | 0               |
|                                  |                 |                 |
| CHW outlet connection direction  | Integer         | 1               |
| z                                |                 |                 |
|                                  | Integer         | 0               |
| Condensate connection size (mm)  |                 |                 |
|                                  | Double          | 5               |
| Condensate connection location x |                 |                 |
|                                  | Double          | 5               |
| Condensate connection location y |                 |                 |
|                                  | Double          | 0.1             |
| Condensate connection location z |                 |                 |
|                                  | Double          | 3.32            |
| Condensate connection direction  |                 |                 |
| x                                | Double          | 6               |
|                                  |                 |                 |
| Condensate connection direction  | Double          | 15              |
| y                                |                 |                 |
|                                  | Double          | 684             |
| Condensate connection direction  |                 |                 |
| z                                | Double          | 995             |
|                                  |                 |                 |
| Heating output (kW)              | Double          | 93              |
|                                  |                 |                 |
| Heating coil water content (l)   | Integer         | 0               |
|                                  |                 |                 |
| Heating coil water flow rate     | Integer         | 1               |
| (l/s)                            |                 |                 |
|                                  | Integer         | 0               |
| Heating coil pressure drop (kPa) |                 |                 |
|                                  | Double          | 15              |
| Maximum LPHW pressure (bar)      |                 |                 |
|                                  | Double          | 712             |
| LPHW inlet connection size (mm)  |                 |                 |
|                                  | Double          | 1100            |
| LPHW inlet connection location x |                 |                 |
|                                  | Double          | 121             |
| LPHW inlet connection location y |                 |                 |
|                                  | Integer         | 0               |
| LPHW inlet connection location z |                 |                 |
|                                  | Integer         | 1               |
| LPHW inlet connection direction  |                 |                 |
| x                                | Integer         | 0               |
|                                  |                 |                 |
| LPHW inlet connection direction  | Double          | 3               |
| y                                |                 |                 |
|                                  | Double          | 0.1             |
| LPHW inlet connection direction  |                 |                 |
| z                                | Double          | 0.2             |
|                                  |                 |                 |
| LPHW outlet connection size (mm) | Double          | 1500            |
|                                  |                 |                 |
| LPHW outlet connection location  | Double          | 35              |
| x                                |                 |                 |
|                                  | Double          | 1               |
| LPHW outlet connection location  |                 |                 |
| y                                | Double          | 779.5           |
|                                  |                 |                 |
| LPHW outlet connection location  | Double          | 915             |
| z                                |                 |                 |
|                                  | Double          | 240             |
| LPHW outlet connection direction |                 |                 |
| x                                | Integer         | 0               |
|                                  |                 |                 |
| LPHW outlet connection direction | Integer         | 1               |
| y                                |                 |                 |
|                                  | Integer         | 0               |
| LPHW outlet connection direction |                 |                 |
| z                                | Double          | 0.5             |
|                                  |                 |                 |
| Filter EU rating                 | Double          | 1.5             |
|                                  |                 |                 |
| Fan power (kW)                   | Double          | 1               |
|                                  |                 |                 |
| Air Flow Rate (m^3^/s)           | Double          | 100             |
|                                  |                 |                 |
| Fan pressure drop (Pa)           |                 |                 |
|                                  |                 |                 |
| Sound power (dBA)                |                 |                 |
|                                  |                 |                 |
| Electrical connection size (mm)  |                 |                 |
|                                  |                 |                 |
| Electrical connection location x |                 |                 |
|                                  |                 |                 |
| Electrical connection location y |                 |                 |
|                                  |                 |                 |
| Electrical connection location z |                 |                 |
|                                  |                 |                 |
| Electrical connection direction  |                 |                 |
| x                                |                 |                 |
|                                  |                 |                 |
| Electrical connection direction  |                 |                 |
| y                                |                 |                 |
|                                  |                 |                 |
| Electrical connection direction  |                 |                 |
| z                                |                 |                 |
|                                  |                 |                 |
| Running Current (Amps)           |                 |                 |
|                                  |                 |                 |
| Starting Current (Amps)          |                 |                 |
|                                  |                 |                 |
| Phases                           |                 |                 |
|                                  |                 |                 |
| Weight (kg)                      |                 |                 |
+----------------------------------+-----------------+-----------------+

# Diffuser 

+----------------------------------+-----------------+-----------------+
| ## Attributes                    | #### Type       | Example         |
+----------------------------------+-----------------+-----------------+
| ## Description                   | #### STRING     | Diffuser        |
|                                  |                 |                 |
| Manufacturer                     | STRING          | Trox            |
|                                  |                 |                 |
| Model Ref.                       | STRING          | 300             |
|                                  |                 |                 |
| Width (mm)                       | Integer         | 300             |
|                                  |                 |                 |
| Depth (mm)                       | Integer         | 300             |
|                                  |                 |                 |
| Height (mm)                      | Integer         | 112             |
|                                  |                 |                 |
| Maintenance space left (mm)      | Integer         | 0               |
|                                  |                 |                 |
| Maintenance space right (mm)     | Integer         | 0               |
|                                  |                 |                 |
| Maintenance space front (mm)     | Integer         | 0               |
|                                  |                 |                 |
| Maintenance space back (mm)      | Integer         | 0               |
|                                  |                 |                 |
| Maintenance space above (mm)     | Integer         | 0               |
|                                  |                 |                 |
| Maintenance space below (mm)     | Integer         | 0               |
|                                  |                 |                 |
| Access width (mm)                | Integer         | 100             |
|                                  |                 |                 |
| Access height (mm)               | Integer         | 100             |
|                                  |                 |                 |
| Duct connection Type             | STRING          | Round           |
|                                  |                 |                 |
| Duct Diameter                    | Integer         | 150             |
|                                  |                 |                 |
| Duct connection location x       | Integer         | 150             |
|                                  |                 |                 |
| Duct connection location y       | Integer         | 150             |
|                                  |                 |                 |
| Duct connection location z       | Integer         | 112             |
|                                  |                 |                 |
| Duct connection direction x      | Integer         | 0               |
|                                  |                 |                 |
| Duct connection direction y      | Integer         | 0               |
|                                  |                 |                 |
| Duct connection direction z      | Integer         | 1               |
|                                  |                 |                 |
| Effective Area (m^2^/s)          | Double          | 0.0175          |
|                                  |                 |                 |
| Air Flow Rate (m^3^/s)           | Double          | 0.046           |
|                                  |                 |                 |
| Pressure Drop (kPa)              | Double          | 0.014           |
|                                  |                 |                 |
| Noise Criteria (dB)              | Double          | 25              |
|                                  |                 |                 |
| Weight (kg)                      | Double          | 5               |
+----------------------------------+-----------------+-----------------+

[^1]: The Engineering and Physical Sciences Research Council.

[^2]: Department of the Environment, Transport and the Regions.

[^3]: The LINK scheme is the UK Government\'s principal mechanism for
    promoting partnership in pre-competitive research between industry
    and the research base.

[^4]: Microstation/J is a trademark of Bentley Systems.

[^5]: ECLiPSe is a trademark of IC-PARC at Imperial College, London.

[^6]: JNI is a trademark of Sun Microsystems, Inc.