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REMOVE THIS OUTLINE GUIDE BEFORE PLACING

THE SPECIFICATION SECTION IN THE CONTRACT

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O U T L I N E G U I D E

[DIVISION 15: MECHANICAL]{.underline}

SECTION 15783 ‑ PACKAGED TERMINAL AIR CONDITIONER

USE: Furnishing and installing terminal air conditioner systems. Unique
job requirements may require specific coverage in the following
specification sections:

**NOTES TO SPECIFIER:**

A. Options within paragraphs are identified by enclosure in brackets;
blank spaces enclosed by brackets \[[ ]{.underline}\] provide for
information to be inserted, as appropriate to individual projects.

B. **TO AVOID CONFLICTING REQUIREMENTS AND COSTLY MISTAKES,** the
specifier must edit (delete, substitute or add to the text). The
remaining paragraphs must be renumbered.

C. DELETE FOR FINAL COPY: Notes to the Specifier, located between lines
of asterisks; all \[brackets\], [underlining]{.underline}, **boldface,
**and *italics* within the paragraphs; and this page. (Open Reveal Codes
\[alt F3\] to do this accurately).

D. [To Edit "(Footer B)":]{.underline} (Corel 8). **ENTIRE FOOTER SHOULD
BE BOLDED. **Click in the footer and delete the "Project Name (ftr B)"
text and replace it with the **Name Of The Project (upper/lower case).**
Replace date with current MM/YY (WITHOUT BRACKETS).

E. The Guide Specifications are intended to be continuously reviewed and
revised. User's technical comments are appreciated. Also, other related
or similar specifications that are written "from scratch" that could
benefit others, or other questions can be sent to NSTC A/E Group, ST-110
or call (303) 987-6851.

F. DESIGN NOTES:

1\. **DRAWING DATA REQUIRED:**

**REVISIONS OF THIS SECTION:**

CSI format, editorial changes 11/00

Metric: Not Applicable

Technical Update:

SECTION 15783

PACKAGED TERMINAL AIR CONDITIONER

[PART 1: GENERAL]{.underline}

1.1 SUMMARY

A. Section Includes: \[Furnishing\] \[and\] \[Installing\] packaged
terminal air conditioners.

B. Related Sections:

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LIST ITEMS OF WORK THAT MIGHT LOGICALLY BE FURNISHED AND INSTALLED UNDER
THIS SECTION, BUT INSTEAD ARE SPECIFIED IN ANOTHER SECTION. THIS ARTICLE
IS RARELY REQUIRED.

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1.2 SYSTEM DESCRIPTION

A. Requirements: A factory assembled, air-cooled packaged, terminal air
conditioning unit. Unit dimensions shall not exceed \[[ ]{.underline}\]
inches wide, \[[ ]{.underline}\] inches high, and not more than \[[
]{.underline}\] inches deep from face of exterior grill to face of room
cabinet. \[Factory installed electric heat shall be furnished as part of
the assembled unit.\] Each air conditioner shall be complete and ready
to operate after installation. A fresh air damper shall be located
inside the chassis with easily accessible manual controls. A UL 484
listed system and ARI 310 certified unit are required. Units shall be
equipped with a front discharge room cabinet for mounting \[high on
wall\] \[floor\] \[\_\_\_\_\_\_\_\_\_\_\].

1.3 SUBMITTALS

A. General: Submittals shall be according to Section 01330 ‑ Submittal
Procedures.

B. Manufacturer\'s Literature: Submit \[[ ]{.underline}\] copies of the
manufacturer\'s descriptive data for the packaged terminal air
conditioning unit\[s\] to be used on this project.

C. Installation Instructions: Submit \[[ ]{.underline}\] copies of the
manufacturer\'s installation instructions for the packaged terminal air
conditioning unit\[s\] to be used on this project.

D. Operating and Maintenance Instructions: Submit \[[ ]{.underline}\]
copies of the manufacturer\'s operating and maintenance instructions for
the packaged terminal air conditioning unit\[s\] to be used on this
project.

E. Shop Drawings: Submit \[[ ]{.underline}\] copies of shop drawings for
the major assemblies and major components of the packaged terminal air
conditioning unit\[s\] to be used on this project. Shop drawings shall
show wiring and controls. A bill of materials and parts list shall be
furnished with the shop drawings. Drawings shall be \[same\] \[larger\]
scale as the full size Contract Drawings.

F. Performance Data: Submit \[[ ]{.underline}\] copies of \[curves\]
\[calibration charts\] \[[ ]{.underline}\] showing the performance
characteristics of \[[ ]{.underline}\] \[the following items\] to be
used on this project:

[PART 2: PRODUCTS]{.underline}

2.1 EQUIPMENT

A. Type: A hermetically sealed refrigerant system consisting of
compressor, condenser, and evaporator coils and capillary refrigerant
coils shall be provided, mounted on a common chassis. A wall case shall
also be provided.

B. Controls: Each unit shall be remotely controlled with a wall-mounted
thermostat. Each unit shall be factory equipped with a freeze sentinel
control to energize the heater and fan on high speed when the room
temperature reaches 45‑55 degrees F. The units shall automatically
provide cooling and heating as required to maintain the temperature to
the level set on the wall‑mounted thermostat. The controls shall
incorporate automatic changeover from heating to cooling in response to
the wall‑mounted thermostat. \[Provide units with low ambient lockout
control to prevent compressor operation below 35 degrees F\].

C. Cabinet and Chassis: The cabinet and chassis shall be constructed of
16 gauge minimum furniture steel and designed for easy installation and
service access. Cabinet shall be suitable for \[wall mounting through
set‑screw mounting holes\] \[floor mounting\]. Grilles shall be
heavy‑duty steel with baked enamel.

D. Refrigeration System: The refrigerant system shall be split between
indoor and outdoor sections. Both systems shall be factory piped, and
sealed with an operating charge. Contractor shall hard pipe refrigerant
lines between indoor and outdoor modules. \[System shall be capable of
operating down to ‑30 degrees F\].

E. Indoor Module: The indoor module shall consist only of copper‑tube,
aluminum‑fin evaporator coil, and thermal expansion valve, pre‑charged
with refrigerant and sealed. Systems with compressors located in the
indoor module or using capillary‑tube metering devices shall be
unacceptable. Maximum face velocity of the evaporator coil shall not
exceed 325 fpm at maximum fan speed.

F. Outdoor Module: The outdoor module shall contain the compressor,
condenser coil and condenser fan and be fully suitable for outdoor
mounting. The compressor shall be fully hermetic with overloads, high
and low pressure switches, spring isolation, crankcase heater, filter
drier, refrigerant line sight glass and moisture indicator. The
condenser coil shall be constructed of aluminum with copper tubes and
aluminum fins with a direct‑drive propeller‑type fan. Components shall
be factory assembled, charged with refrigerant, and sealed.

G. Air Distribution System: The air distribution system shall be
constructed with a quiet, direct‑drive fan assembly equipped with
multiple, double‑inlet blowers, self‑aligning sleeve bearings, and
lifetime lubrication. Fan motor shall be permanent‑split, high
efficiency type, equipped with \[1-speed\] \[2-speed\] \[3-speed\] for
air flow modulation. Dehumidification shall utilize the lower fan speed.
Air delivery shall be minimum \[760\] cfm at high fan speed.

H. Air Filters: The air filters shall be 1 inch cleanable foam type.
They shall be easily removable from the front of the system by means of
quarter‑turn fasteners and shall not require system shutdown for
service.

I. Electric Reheat: The electric reheat shall be low‑watt density with
tubular construction and provided with non‑corrosive metal sheath. The
capacity of the reheat shall be capable of maintaining dry‑bulb
conditions during dehumidification but shall only be energized if
dry‑bulb temperature drops below thermostat set point. Reheat capacity
shall be \[2.7 KW.\] Manual‑reset, dual‑limit switches shall be provided
to provide for shutdown in event of over‑temperature conditions.
Capillary‑tube sensors are unacceptable.

J. Control System: The integral control system shall be factory
assembled, wired into the system and tested prior to shipment. It shall
consist of an On/Off switch, temperature thermostat, High/Low speed
selector switch and indicator lights for fan speed, and operational
mode. Controls shall be easily accessible from the front of the system
and protected by an impact resistant cover.

K. Condensate Pump: Provide condensate pump for positive removal of
moisture collected from the evaporator coil drain pan and humidification
system overfill. Pump shall be factory piped, mounted and wired with
integral float switch and respond automatically.

L. System Performance: Each unit shall be capable of providing \[[
]{.underline}\] Btuh cooling and \[[ ]{.underline}\] Btuh heating. Units
shall operate on \[208 volt, 60 Hz, single phase\] power.

[PART 3: EXECUTION]{.underline}

3.1 INSTALLATION

A. Wall Mounting: Install units according to the manufacturer\'s
instructions. Mount units high on wall as shown on drawings. Locate
thermostat\[s\] as shown on drawings. Units shall be mounted so that
face of exterior grill is flush with the exterior wall the units \[is\]
\[are\] mounted on.

B. Wiring: Shall comply with NFPA 70.

C. Condensate Removal: Condensate pump shall be connected to piping that
will allow collected moisture to be removed through the \[existing vent
piping\] \[\_\_\_\_\] \[as shown on the drawing.

D. Refrigerant Piping: As shown on the drawing.

3.2 DEMONSTRATION

A. Requirements: Upon completion of installation and after circuitry has
been energized, the Contractor shall demonstrate capability and
compliance of system with requirements. Malfunctioning units shall be
corrected and retested by the Contractor to demonstrate compliance with
the specifications.

3.3 TRAINING OF GOVERNMENT EMPLOYEES

A. Requirements: See Section 01780 - Closeout Submittals.

[PART 4: MEASUREMENT AND PAYMENT]{.underline}

4.1 METHOD OF MEASUREMENT

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WHEN A "LUMP SUM" CONTRACT IS USED, DELETE THE TITLE PART 4: MEASUREMENT
AND PAYMENT, AND BOTH ARTICLES FROM THIS SECTION. MEASUREMENT AND
PAYMENT WILL BE ADDRESSED IN PART 4 OF SECTION 01009 - GENERAL
INFORMATION AND REQUIREMENTS OR SECTION 01010- SUMMARY OF WORK. WHEN NOT
A "LUMP SUM" CONTRACT, SELECT APPLICABLE PHRASES; USE THE "NO
MEASUREMENT" PHRASE WHEN NONE OF THE PAY ITEMS IN THS SECTION ARE
INCLUDED IN THE BID SCHEDULE.

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A. Units: The work described in this section will \[not be measured for
payment\]. \[be measured for and paid for\] \[on a lump-sum basis\].

4.2 BASIS OF PAYMENT

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WHEN NOT A "LUMP SUM" CONTRACT, SELECT APPLICABLE, SELECT APPLICABLE
PHRASES; USE THE "NO DIRECT PAYMENT" PHRASE WHEN NONE OF THE PAY ITEMS
IN THE SPECIFICATION ARE INCLUDED IN THE BID SCHEDULE.

WHEN NOT A "LUMP SUM" CONTRACT AND PAYMENT IS TO BE MADE UNDER THIS
SECTION, SELECT APPLICABLE PAY ITEMS. DO NOT CHANGE PAY ITEM NUMBER.
WHEN MORE THAN ONE DIAMETER OR GAUGE IS SPECIFIED FOR ANY PAY ITEM,
LETTER SUFFIXES WILL BE ADDED AFTER THE PARENTHESIS OF THE ITEM NUMBER.
WHEN GOVERNMENT-FURNISHED PROPERTY IS SPECIFIED FOR PAY ITEMS, THE
LETTER SUFFIX GF WILL BE ADDED AFTER THE PARENTHESIS OF THE ITEM NUMBER.

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A. Payment: \[No direct payment for the work described under this
section will be made. Consideration for this item shall be included in
the bid price for other items of the Contract\]. \[Prices and payment
will be full compensation for the work described in this section.
Payment will be made under:\]

[Pay Item Pay Unit]{.underline}

END OF SECTION