7A -i 

### APPENDIX 7A. CHARACTERISTICS OF MODULAR CLASSROOM, MODULAR

OFFICE, AND TEL E COMMUN I CATION SHELTER MODEL S

TABLE OF CONTENTS

7A.1 INTRODUCTION ........................................................................................................... 7A-1

7A.2 BUILDING MODEL DESCRIPTIONS .......................................................................... 7A-1

7A.3 SPVAC AND SPVHP EQUIPMENT PERFORMANCE CURVES ............................ 7A-14

REFERENCES ....................................................................................................................... 7A-17

LIST OF TABLES

Table 7A.2.1 Description of DOE Modular Office Building Model ........................................ 7A-2

Table 7A.2.2 Key Schedules for DOE Modular Office Building Model ................................. 7A-5

Table 7A.2.3 Description of DOE Modular Classroom Building Model ................................. 7A-6

Table 7A.2.4 Key Schedules for DOE Modular Classroom Building Model .......................... 7A-9

Table 7A.2.6 Key S chedules for DOE Telecommunication Shelter Model ........................... 7A-13

Table 7A.3.1 Performance Curves Used in SPVAC and SPVHP Modeling .......................... 7A-157A -1 

### A PPENDIX 7A. CHARACTERISTICS OF MODULAR CLASSROOM, MODULAR

OFFICE, AND TELECOMMUNICATION SHELTER MODELS

7A.1 INTRODUCTION

The analysis of baseline energy consumption for single package vertical air conditioners

(SPVAC) and single package vertical heat pumps (SPVHP) discussed in chapter 7 of the NOPR

TSD was based on EnergyPlus simulation data for th ree building models: a modu lar office

building, a modular classroom, an d a telecommunication shelter. This appendix provides key

characteristics of the three building models that formed the basis of these data.

7A.2 BUILDING MODEL DESCR IPTION S

Table 7A.2.1 provides a high

- level description of the modular office building model.

Table 7A.2.2 provides the U.S. Department of Energy’s ( DOE’s ) key schedules for the model.

Table 7A.2.3 provides a high -level description of the modular classroom building model. Table

7A.2.4 provides DOE’s key schedules for the modular classroom model. Table 7A.2.5 provi des a

high

- level description of the telecommunication shelter building model. Table 7A.2.6 provides

DOE’s key schedules for the telecommunication shelter model.7A -2 

### Table 7A.2.1 Description of DOE Modular Office Building Mo del

Item Description

Program

Available F uel T ypes E lectricity

Building Type (Principal Building Function) OFFICE

Building Prototype M odular Office

Form

Total Floor Area ( ft 2 ) 1,568

( 56 ft × 28 ft)

Building S hape

Aspect Ratio 2.0

Number of Floors 1

Window Fraction

(Window

- to

- Wall Ratio) 15 %

Window Locations E ven distribution among all four sides

Shading Geometry N one

Azimuth E

- W

Thermal Zoning 1 Zone

Floor to C eiling H eight (feet) 7.57A -3 Item Description

Architecture

Exterior W alls

Construction Wood

- Frame Walls

U

- factor (Btu / h * ft 2 * °F) and/or

R

- value (h * ft 2 * °F / Btu) ASHRAE 90.1

- 2004 Requirements

Nonresidential; Walls, Above

- Grade, Wood

- Framed

Roof

Construction Attic Roof

U

- factor (Btu / h * ft 2 * °F) and/or

R

- value (h * ft 2 * °F / Btu) ASHRAE 90.1

- 2004 Requirements

Nonresidential; Roofs, Attic and Other

Window

U

- factor (Btu / h * ft 2 * °F) ASHRAE 90.1

- 2004 Requirements

Nonresidential; Vertical Glazing SHGC (all)

Operable A rea 0

Foundation

Foundation Type Crawlspace

Construction Wood Frame

Thermal P roperties for G round L evel

F loor

U

- factor (Btu / h * ft2 * °F) ASHRAE 90.1

- 2004 Requirements

Nonresidential; Floors Wood Frame & Other

Infiltration

Infiltration EnergyPlus Airflow Network with Equivalent Leakage Area based on 7 ACH

HVAC

System Type

Heating T ype Electric Furnace or Single Package Vertical Heat Pump

Cooling T ype Single Packaged Vertical Air Conditioning or Heat Pump

HVAC Sizing

Air Conditioning A utosized to design day

Heating A utosized to design day

HVAC Control

Thermostat Setpoint 75 °F Cooling/70 °F Heating

Thermostat Setback 85 °F Cooling/60 °F Heating

Economizers Various by climate location and cooling capacity if > 65,000 Btu/h

Per ASHRAE 90.1

- 2004

Ventilation ASHRAE Ventilation Standard 62.1

- 2004

0. 1 cfm/sf

Supply Fan

Fan S chedules See under HVAC Operation Schedules , Below7A -4 Item Description

Supply Fan Total Power 9

- 9.5 EER: 154 W/ton

>=10 EER: 113.6 W/ton

Internal Loads & Schedules

Lighting

Average Power D ensity (W/ft 2 ) 1. 0

Schedule See under Schedules , Below

Plug load

Average Power D ensity (W/ft 2 ) 0.63

Schedule See under Schedules , Below

Occupancy

Average P eople (5 .6 persons/1

, 000 sf)

Schedule See under Schedules , Below7A -5 

### Table 7A.2.2 Key Schedules for DOE Modular O ffice Building Model

Schedule Type Through Day of Week 1 am 2 am 3 am 4 am 5 am 6 am 7 am 8 am 9 am 10 am 11 am Noon

Internal Loads Schedule s

BLDG_LIGHT_SCH Fraction Through 12/31 WeekDay 0.18 0.18 0.18 0.18 0.18 0.23 0.23 0.42 0.9 0.9 0.9 0.9

Weekend 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

WinterDesignDay 0 0 0 0 0 0 0 0 0 0 0 0

SummerDesignDay 1 1 1 1 1 1 1 1 1 1 1 1

BLDG_EQUIP_SCH Fraction Through 12/31 WeekDay 0.5 0.5 0.5 0.5 0.5 1 1 1 1 1 1 1

Weekend 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

WinterDesignDay 0 0 0 0 0 0 0 0 0 0 0 0

SummerDesignDay 1 1 1 1 1 1 1 1 1 1 1 1

BLDG_OCC_SCH Fraction Through 12/31 WeekDay 0 0 0 0 0 0 0.11 0.21 1 1 1 1

Weekend 0 0 0 0 0 0 0 0 0 0 0 0

WinterDesignDay 0 0 0 0 0 0 0 0 0 0 0 0

SummerDesignDay 1 1 1 1 1 1 1 1 1 1 1 1

HVAC Schedules

HVACOperationSchd

(Fan Schedule) on/off Through 12/31 WD, SummerDesign 0 0 0 0 0 0 1 1 1 1 1 1

Sat, WinterDesign 0 0 0 0 0 0 1 1 1 1 1 1

Sun, Hol, Other 0 0 0 0 0 0 0 0 0 0 0 0

1 pm 2 pm 3 pm 4 pm 5 pm 6 pm 7 pm 8 pm 9 pm 10 pm 11 pm Mid

Internal Loads Schedule s

BLDG_LIGHT_SCH Fraction Through 12/31 WeekDay 0.8 0.9 0.9 0.9 0.9 0.61 0.42 0.42 0.32 0.32 0.23 0.18

Weekend 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

WinterDesignDay 0 0 0 0 0 0 0 0 0 0 0 0

SummerDesignDay 1 1 1 1 1 1 1 1 1 1 1 1

BLDG_EQUIP_SCH Fraction Through 12/31 WeekDay 0.94 1 1 1 1 0.5 0.2 0.2 0.2 0.2 0.2 0.2

Weekend 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

WinterDesignDay 0 0 0 0 0 0 0 0 0 0 0 0

SummerDesignDay 1 1 1 1 1 1 1 1 1 1 1 1

BLDG_OCC_SCH Fraction Through 12/31 WeekDay 0.53 1 1 1 1 0.32 0.11 0.11 0.11 0.11 0.05 0

Weekend 0 0 0 0 0 0 0 0 0 0 0 0

WinterDesignDay 0 0 0 0 0 0 0 0 0 0 0 0

SummerDesignDay 1 1 1 1 1 1 1 1 1 1 1 1

HVAC Schedule s

HVACOperationSchd

(Fan Schedule) on/off Through 12/31 WD, SummerDesign 1 1 1 1 1 1 1 0 0 0 0 0

Sat, WinterDesign 1 1 1 1 1 1 0 0 0 0 0 0

Sun, Hol, Other 0 0 0 0 0 0 0 0 0 0 0 07A -6 

### Table 7A.2.3 Description of DOE Modular Classroom Building Model

Item Description

Program

Available Fuel T ypes E lectricity

Building Type (Principal Building

Function) Education

Building Prototype M odular Classroom

Form

Total Floor Area ( ft 2 ) 1,568

( 56 ft × 28 ft)

Building S hape

Aspect Ratio 2.0

Number of Floors 1

Window Fraction

(Window

- to

- Wall Ratio) 15%

Window Locations E ven distribution among all four sides7A -7 Item Description

Shading Geometry None

Azimuth E

- W

Thermal Zoning 1 Zone

Floor to Ceiling H eight (feet) 7.5

Architecture

Exterior walls

Construction Wood

- Frame Walls

U

- factor (Btu / h * ft 2 * °F) and/or

R

- value (h * ft 2 * °F / Btu) ASHRAE 90.1

- 2004 Requirements

Nonresidential; Walls, Above

- Grade, Wood

- Framed

Roof

Construction Attic Roof

U

- factor (Btu / h * ft 2 * °F) and/or

R

- value (h * ft 2 * °F / Btu) ASHRAE 90.1

- 2004 Requirements

Nonresidential; Roofs, Attic and Other

Window

U

- factor (Btu / h * ft 2 * °F) ASHRAE 90.1

- 2004 Requirements

Nonresidential; Vertical Glazing SHGC (all)

Operable A rea 0

Foundation

Foundation Type Crawlspace

Construction Wood Frame

Thermal Properties for Ground

Level F loor

U

- factor (Btu / h * ft 2 * °F) ASHRAE 90.1

- 2004 Requirements

Nonresidential; Floors Wood Frame & Other

Infiltration

Infiltration EnergyPlus Airflow Network with Equivalent Leakage Area based on 7 ACH

HVAC

System Type

Heating T ype Electric Furnace or Single Package Vertical Heat Pump

Cooling T ype Single Packaged Vertical Air Conditioning or Heat Pump

HVAC Sizing

Air Conditioning A utosized to design day

Heating A utosized to design day

HVAC Control

Thermostat Setpoint 75 °F Cooling/70 °F Heating

Thermostat Setback 85 °F Cooling/60 °F Heating

Economizers Various by climate location and cooling capacity if > 65,000 Btu/h

Per ASHRAE 90.1

- 20047A -8 Item Description

Ventilation ASHRAE Ventilation Standard 62.1

- 2004

0.37 cfm/sf

Supply Fan

Fan S chedules See under HVAC Operation Schedules, Below

Supply Fan Total Power 9

- 9.5 EER: 154 W/ton

>=10 EER: 113.6 W/ton

Internal Loads & Schedules

Lighting

Average Power D ensity (W/ft 2 ) 1.4

Schedule See under Schedules, Below

Plug load

Average Power D ensity (W/ft 2 ) 1.4

Schedule See under Schedules, Below

Occupancy

Average P eople (25 persons/1

, 000 sf)

Schedule See under Schedules, Below7A -9 

### Table 7A.2.4 Key Schedules for DOE Modular Classroom Building Model

Schedule Type Through Day of Week 1 am 2 am 3 am 4 am 5 am 6 am 7 am 8 am 9 am 10 am 11 am Noon

Internal Loads Schedule s

BLDG_LIGHT_SCH Fraction 1/1

– 6/15

9/16

– 12/31 WD,

SummerDesign 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.9 0.9 0.9 0.9 0.9

Sat, Sun, Hol,

WinterDesign,

Other 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

6/16

– 9/15 WD,

SummerDesign 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.5 0.5 0.5 0.5

Sat, Sun, Hol,

WinterDesign,

Other 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

BLDG_EQUIP_SCH Fraction 1/1

– 6/15

9/16

– 12/31 WD,

SummerDesign 0.5 0.5 0.5 0.5 0.5 1 1 1 1 1 1 1

Sat, Sun, Hol,

WinterDesign,

Other 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2

6/16

– 9/15 WD,

SummerDesign 0 0 0 0 0 0 0 0 0 0 0 0

Sat, Sun, Hol,

WinterDesign,

Other 1 1 1 1 1 1 1 1 1 1 1 1

BLDG_OCC_SCH Fraction 1/1

– 6/15

9/16

– 12/31 WD,

SummerDesign 0 0 0 0 0 0 0 0 0.95 0.95 0.95 0.95

Sat, Sun, Hol,

WinterDesign,

Other 0 0 0 0 0 0 0 0 0 0 0 0

WD,

SummerDesign 0 0 0 0 0 0 0 0 0.15 0.15 0.15 0.15

Sat, Sun, Hol,

WinterDesign,

Other 0 0 0 0 0 0 0 0 0 0 0 0

6/16

– 9/15 All 0 0 0 0 0 0 0 0 0 0 0 0

HVAC Schedule s

HVACOperationSchd

(Fan Schedule) on/off Through 12/31 WD,

SummerDesign 0 0 0 0 0 0 1 1 1 1 1 1

Sat, WinterDesign 0 0 0 0 0 0 1 1 1 1 1 1

Sun, Hol, Other 0 0 0 0 0 0 0 0 0 0 0 07A

- 10 1 pm 2 pm 3 pm 4 pm 5 pm 6 pm 7 pm 8 pm 9 pm 10 pm 11 pm Mid

Internal Loads Schedule s

BLDG_LIGHT_SCH Fraction 1/1

– 6/15

9/16

– 12/31 WD,

SummerDesign 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.18 0.18 0.18

Sat, Sun, Hol,

WinterDesign,

Other 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

6/16

– 9/15 WD,

SummerDesign 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.18 0.18 0.18 0.18

Sat, Sun, Hol,

WinterDesign,

Other 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18 0.18

BLDG_EQUIP_SCH Fraction 1/1

– 6/15

9/16

– 12/31 WD,

SummerDesign 0.95 0.95 0.95 0.95 0.95 0.35 0.35 0.35 0.35 0.35 0.35 0.35

Sat, Sun, Hol,

WinterDesign,

Other 0.35 0.35 0.35 0.35 0.35 0.35 0.35 0.35 0.35 0.35 0.35 0.35

6/16

– 9/15 WD,

SummerDesign 0.5 0.5 0.5 0.5 0.5 0.25 0.25 0.25 0.25 0.25 0.25 0.25

Sat, Sun, Hol,

WinterDesign,

Other 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25

BLDG_OCC_SCH Fraction 1/1

– 6/15

9/15

– 12/31 WD,

SummerDesign 0.95 0.95 0.95 0.95 0.15 0.15 0.15 0.15 0.15 0 0 0

Sat, Sun, Hol,

WinterDesign,

Other 0 0 0 0 0 0 0 0 0 0 0 0

WD,

SummerDesign 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0 0 0

Sat, Sun, Hol,

WinterDesign,

Other 0 0 0 0 0 0 0 0 0 0 0 0

6/16

– 9/15 All 0 0 0 0 0 0 0 0 0 0 0 0

HVAC Schedule

HVACOperationSchd

(Fan Schedule) on/off Through 12/31 WD,

SummerDesign 1 1 1 1 1 1 1 0 0 0 0 0

Sat, WinterDesign 1 1 1 1 1 1 0 0 0 0 0 0

Sun, Hol, Other 0 0 0 0 0 0 0 0 0 0 0 07A

- 11 

### Table 7A.2.5 Description of DOE Telecommunication Shelter Model

Item Description

Program

Available F uel T ypes E lectricity

Building Type (Principal Building Function) Telecom

Building Prototype Telecommunication Shelter

Form

Total Floor Area (ft 2 ) 240

( 20 ft × 1 2 ft)

Building shape

Aspect Ratio 1.67

Number of Floors 1

Window Fraction

(Window

- to

- Wall Ratio) 0%

Window Locations None

Shading Geometry None

Azimuth E

- W

Thermal Zoning 1 Zone

Floor to Ceiling H eight (feet) 8.5

Architecture

Exterior walls

Construction Masonry Walls

U

- factor (Btu / h * ft 2 * °F) and/or

R

- value (h * ft 2 * °F / Btu) R- 10 Continuous Ins ulation

Roof7A

- 12 Item Description

Construction Masonry

U

- factor (Btu / h * ft 2 * °F) and/or

R

- value (h * ft 2 * °F / Btu) R- 10 Continuous Ins ulation

Foundation

Foundation Type Slab On Grade

Construction

Thermal Properties for Ground Level

F loor

U

- factor (Btu / h * ft2 * °F) R- 10 Continuous Ins ulation above Slab

Infiltration

Infiltration EnergyPlus Airflow Network with Equivalent Leakage Area based on 1.0 ACH

HVAC

System Type

Heating T ype Electric Furnace

Cooling T ype Single Packaged Vertical Air Conditioner

HVAC Sizing

Air Conditioning A utosized to design day

Heating A utosized to design day

HVAC Control

Thermostat Setpoint 75 °F Cooling/60 °F Heating

Thermostat Setback No setback

Economizers Modeled both with and without economizer.

Economizer electronic enthalpy economizer, non

- integrated, 72 °F high limit, ElectronicEnthalpyCurveA

Ventilation 0.0 cfm/sf

Supply Fan

Fan S chedules See under HVAC Operation Schedules, Below

Supply Fan Total Power 9

- 9.5 EER: 154 W/ton

>=10 EER: 113.6 W/ton

Internal Loads & Schedules

Lighting

Average Power D ensity (W/ft 2 ) Not Modeled

Schedule See under Schedules, Below

Plug load

Average power D ensity (W/ft 2 ) 44

Schedule See under Schedules, Below

Occupancy

Average people (0 persons)7A

- 13 Item Description

Schedule See under Schedules, Below



### Table 7A.2.6 Key Schedules for DOE Telecommunication Shelter Model

Schedule Type Through Day of Week 1 am 2 am 3 am 4 am 5 am 6 am 7 am 8 am 9 am 10 am 11 am Noon

Internal Loads Schedule s

BLDG_LIGHT_SCH Fraction Through 12/31 WD, Sat, Sun, Hol 0 0 0 0 0 0 0 0 0 0 0 0

SummerDesign 0 0 0 0 0 0 0 0 0 0 0 0

WinterDesign 0 0 0 0 0 0 0 0 0 0 0 0

BLDG_EQUIP_SCH Fraction Through 12/31 WD, Sat, Sun, Hol 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65

SummerDesign 1 1 1 1 1 1 1 1 1 1 1 1

WinterDesign 0 0 0 0 0 0 0 0 0 0 0 0

BLDG_OCC_SCH Fraction Through 12/31 WD, Sat, Sun, Hol 0 0 0 0 0 0 0 0 0 0 0 0

SummerDesign 0 0 0 0 0 0 0 0 0 0 0 0

WinterDesign 0 0 0 0 0 0 0 0 0 0 0 0

HVAC Schedule

HVACOperationSchd on/off Through 12/31 All 1 1 1 1 1 1 1 1 1 1 1 1

1 pm 2 pm 3 pm 4 pm 5 pm 6 pm 7 pm 8 pm 9 pm 10 pm 11 pm Mid

Internal Loads Schedules

BLDG_LIGHT_SCH Fraction Through 12/31 WD, Sat, Sun, Hol 0 0 0 0 0 0 0 0 0 0 0 0

SummerDesign 0 0 0 0 0 0 0 0 0 0 0 0

WinterDesign 0 0 0 0 0 0 0 0 0 0 0 0

BLDG_EQUIP_SCH Fraction Through 12/31 WD, Sat, Sun, Hol 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65

SummerDesign 1 1 1 1 1 1 1 1 1 1 1 1

WinterDesign 0 0 0 0 0 0 0 0 0 0 0 0

BLDG_OCC_SCH Fraction Through 12/31 WD, Sat, Sun, Hol 0 0 0 0 0 0 0 0 0 0 0 0

SummerDesign 0 0 0 0 0 0 0 0 0 0 0 0

WinterDesign 0 0 0 0 0 0 0 0 0 0 0 0

HVAC Schedules

HVACOperationSchd on/off Through 12/31 All 1 1 1 1 1 1 1 1 1 1 1 17A

- 14 

### 7A.3 SPVAC AND SPVHP EQUIPMENT PERF ORMANCE CURVES

Table 7A.3.1 provides performance curves used in modeling SPVAC and SPVHP

condenser performance. Coefficients for the equipment performance curves used in Energy Plus

were generated by fitting available manufacturers’ data for SPVAC and SPVHP equipment to

the performance curve equations

.7A

- 15 

### Table 7A.3.1 Performance Curves Used in SPVAC and SPVHP Modeling

Type Performance Curve

Equation Curve Coefficients

a b c d e f

SPVAC Total Cooling Capacity Function of Temperature Curve



### ODB WBf ODB e ODB dWBcWBba FT CAP COOL

××+×+ ×+×+×+=−−

2 2

0.258637 0.102735

- 0.000897

- 0.024854 0.000343

- 0.000687

Total Cooling Capacity Function of Flow Fraction Curve

2 

### FF c FF ba FF CAP COOL ×+×+=−− 0.525 0.725

- 0.25 NA NA NA

Energy Input Ratio Function of Temperature Curve



### ODB WBf ODB e ODB d WBcWBba FT EIR COOL

××+×+×+ ×+×+=−−

2 2 0.464816 0.021310

- 0.000623 0.002048 0.000260

- 0.000049

Energy Input Ratio Function of Flow Fraction Curve

2 

### FF c FF ba FF EIR COOL ×+×+=−− 1.5 578

- 0.7241 0.16628 NA NA NA

Cooling Part Load Fraction Correlation Curve

2 

### PLR c PLR ba PLR EIR COOL ×+×+=−− 0.81 0.19 0.0 NA NA NA

SPVHP Heating Capacity Function of Temperature Curve

2 

### ODB c ODB ba FT CAP HEAT ×+×+=−− 0.741102 0.024257 0.000311 NA NA NA

Heating Capacity Function of Flow Fraction Curve

2 

### ODB c ODB ba FF CAP HEAT ×+×+=−− 0.97465 0.02535 0.00000 NA NA NA

Heating Energy Input Ratio Function of Temperature Curve

3 2 

### ODB c ODB c ODB ba FT EIR HEAT ×+×+×+=−− 1.254425

- 0.03009 0.000984

- 0.000039 NA NA

Heating Energy Input Ratio Function of Flow Fraction

Curve

2 

### FF c FF ba FF EIR HEAT ×+×+=−− 1.453214

- 0.44034

- 0.01287 NA NA NA

Heating Part Load Fraction Correlation Curve

2 

### PLR c PLR ba FPLR EIR HEAT ×+×+=−− 0.81 0.19 0.0 NA NA NA7A

- 16 

### For Table 7A.3.1 , the w here list is as follows :



### FT CAP COOL

−− = total cooling capacity function of temperature,



### FF CAP COOL

−− = t otal cooling capacity function of flow fraction curve,



### FT EIR COOL

−− = e nergy input ratio function of temperature,



### FF EIR COOL

−− = e nergy input ratio function of flow fraction,



### FPLR EIR COOL

−− = t otal cooling part load fraction correlation curve name,



### FT CAP HEAT

−− = h eating capacity function of temperature curve name

, 

### FF CAP HEAT

−− = h eating capacity function of flow fraction curve name,

FT EIR HEAT

−− 

### = h eating energy input ratio function of temperature curve name,

FF EIR HEAT

−− 

### = heating energy input ratio function of flow fraction curve name,

FPLR EIR HEAT

−− 

### = h eating part load fraction correlation curve name,

WB = entering evaporator coil wet

- bulb temperature (°F),

O

DB = o utside dry-bulb temperature (°F), and

PLR = p art load r atio (cooling load/steady

- state capacity).

Normalized performance curves for the SPVAC and SPVHP condensing units were

developed based on manufacturers’ catalog data for Bard Manufacturing Company SPVAC and

SPVHP equipment (B ard W30A1 (Cap) and WH48 (EIR) ) for cooling p erformance and ( Bard

W36H1) equipment for heating performance as a function of coil entering temperature

conditions. 1 2 3 

### Manufacturer s’ data to develop equipment performance curves as a function of air

flow were not readily available . P erformance curves for a irflow and part load correlation were

based on other small single compressor package equipment. Nomenclature used for the left hand

side of each performance curve equation is based on DOE2.1E descriptors for these parameters

and is not normally found in the EnergyPlus documentation.7A

- 17 

### REFERENCES

1. Bard Manufacturing Company, Inc. The Wall -Mount  Air Conditioners - 9.0 EER, (60HZ)

. 2012. Bryan, OH. Form No. S3397.

< www.bardhvac.com/digcat/S3364_TechDoc_CD/TechDoc-PDF/S3397.pdf >

2. Apte, M.G., W.J. Fisk, and L. Rainer. High Performance Commercial Building Systems,

Report on Initial Energy Simulations, Element 6 – Indoor Environmental Quality, Project

2.1 – Energy Simulations and State-Wide Energy Savings . 2002. Prepared by Davis Energy

Group, Inc. for Lawrence Berkeley National Laboratory, Berkeley, CA. Report No. HPCBS

#E6P2.1T1b. < http://energy.lbl.gov/BT/HPCBS/pubs/E6P21T1b.pdf >

3. Bard Manufacturing Company, Inc. The Wall -Mount  Heat Pumps - (60HZ) . 2012. Bryan,

OH. Form No. S3398. < www.bardhvac.com/digcat/S3364_TechDoc_CD/TechDocPDF/S3398.pdf >