Installation & Maintenance Data IM 671
Suite™ II PTAC/PTHP Conditioner
1-Motor (Standard) 2-Motor (Premium)
Group: PTAC
Part Number: 059490800
Date: April 1999
©1999 AAF-McQuay Inc.
Table of Contents
Installation........................................................................... 2
Inspection ........................................................................... 2
Nomenclature...................................................................... 3
Wall Opening Requirements ............................................... 4
Wall Sleeve Installation
Frame & Brick .............................................................. 5
Panel Wall Construction .............................................. 6
Thick Wall Construction............................................... 7
Wall Sleeve Extension
Louver Frame............................................................... 8
Subbase Installation............................................................ 9
Installation of Optional Condensate Drain Kit................... 10
Installation of Louvers....................................................... 11
Installation of Chassis ....................................................... 11
Adjusting Temperature Limiting Device ............................ 12
Electrical Service............................................................... 12
Equipment Startup............................................................ 12
Remote Mounted Thermostat........................................... 13
Scheduled Maintenance ................................................... 13
Recommended Spare Parts.............................................. 14
Refrigeration Cycle ........................................................... 14
Troubleshooting Chart.................................................. 15/16
Approximate Shipping Weights ........................................ 16
Wiring Diagrams (1-Motor)................................ 17,18,19, 20
Wiring Diagrams (2-Motor).............................. 21, 22, 23, 24
Warranty............................................................................ 27
Installation
The installation of this equipment shall be in accordance with the regulations of authorities having jurisdiction and all applicable
codes. It is the responsibility of the installer to determine and follow the applicable codes. Sheet metal parts, self-tapping screws,
clips and such items Inherently have sharp edges, and, is necessary that the installer exercise caution. This equipment is to be
installed only by an experienced installation company which employs trained personnel.
Inspection
When the equipment is received all items should be carefully
checked against the bill of lading to be sure all crates and
cartons have been received. All units should be carefully inspected for damage when received. If any damage is noticed,
the carrier should make the proper notation on the delivery
receipt acknowledging the damage. The carrier should also
fill out a carrier Inspection Report. The AAF-McQuay Inc.T raffic
Department should then be contacted. The unit nameplate
should be checked to make sure the voltage agrees with the
power supply available. The Suite Series Comfort Conditioner
is designed and built for through the-wall installation in either
new or existing buildings. The self-contained refrigerant system delivers cooling to the desired space. Heating can be accomplished with electric resistance, hydronic or with reverse
cycle heating options.
Each conditioner consists of the following components:
1. Heating/Cooling Chassis & Front Panel.
2. Cabinet/Wall Sleeve.
3. Out door Louver-Shipped in a separate carton.
4. Subbase (not shown) - Optional on all 208V and 230V
heat pump and electric heat units. Standard for all 265V
and hydronic heater option. Shipped in a separate
carton.
5. Motorized water/steam valve (hydronic only).
6. Electrical receptacle - 265 volt or hydronic heat.
(Optional for 208/230 volt electric heat.)
7. Plug cord cover - 265 volt (optional 208/230 volt).
(Not required for hydronic heat)
Figure 1. Exploded View of Complete Unit (Single Motor Unit Shown Without Subbase)
IM 671 / Page 2
NOTE: For Illustration purposes only. Not all options available with all models.
Please consult AAF-McQuay Sales Representative for specific availability.
AAF-McQuay PTAC/PTHP Product Nomenclature
P DHS 2 009 E Z 60
Product Category Heating Options
P = PTAC/PTHP 35 = 2.5 kw (230 & 265) 2.0kw (208v)
41 = 3.5 kw (230 & 265v) 2.8kw (208v)
Product Identifier 48 = 5.0 kw (230 & 265v) 4.0kw (208v)
See box below 60 = Universal Electric (2.0–4.8kw)
62 = Hot Water, Normally Open Valve
Design Series 63 = Steam, Normally Closed Valve
1 = A Design 00 = None (Cooling Only)
2 = B Design
Coil Options
Nominal Capacity (None)
007 = 7,000
009 = 9,000 Voltage
012 = 12,000 C = 208-60-1
015 = 15,000 E = 208/230-60-1
J = 265-60-1
P = 208/230-115-60-1
R = 265-115-60-1
T = 208/208-60-1
McQuay PTAC/PTHP Product Identifiers
DEA = Suite II, 2 Motor, Automatic Damper SHA = Suite II, 1 Motor, Heat Pump, Automatic Damper
DEC = Suite II, 2 Motor, Corrosion Pkg. SHC = Suite II, 1 Motor, Heat Pump, Corrosion Pkg.
DEH = Suite II, 2 Motor, Hydronic Health Care SHI = Suite II, 1 Motor, Heat Pump, IAQ
DEI = Suite II, 2 Motor, IAQ SHS = Suite II, 1 Motor, Heat Pump
DES = Suite II, 2 Motor SEA = Suite II, 1 Motor, Automatic Damper
DHA = Suite II, 2 Motor, Heat Pump, Automatic Damper SEC = Suite II, 1 Motor, Corrosion Pkg.
DHC = Suite II, 2 Motor, Heat Pump, Corrosion Pkg. SEH = Suite II, 1 Motor, Hydronic Health Care
DHI = Suite II, 2 Motor, Heat Pump, IAQ SEI = Suite II, 1 Motor, IAQ
DHS = Suite II, 2 Motor, Heat Pump SES = Suite II, 1 Motor
AAF PTAC/PTHP Product Identifiers
AEC = AAF SuiteII, 1 Motor, Corrosion Pkg. FEC = AAF Suite II, 2 Motor, Corrosion Pkg.
AES = AAF Suite II, 1 Motor FES = AAF Suite II, 2 Motor
AHC = AAF Suite II, 1 Motor, Heat Pump, Corrosion Pkg. FHC = AAF Suite II, Heat Pump, Corrosion Pkg.
AHS = AAF Suite II, 1 Motor, Heat Pump FHS = AAF Suite II, 2 Motor, Heat Pump
©AAF-McQuay Inc. 1999
The information in this catalog supersedes and replaces previous (catalogues)(bulletins) with regards to AAF-
McQuay Terminal Air Conditioning products. Illustrations cover the general appearance of AAF-McQuay products
at the time of publication and AAF-McQuay reserves the right to make changes in design and construction at
anytime without notice.
IM 671 / Page 3
Wall Opening Requirement
Before installing the unit, check the wall opening to be sure
the cabinet/wall sleeve will slide into the opening unobstructed.
For masonry walls, a lintel must be used to provide support
over each opening. The rough opening should measure 16
High (413mm) x 42
When no subbase is used, the opening should be a minimum
Figure 2. Suite Unit with Electric Subbase
1
/4" Wide (1073mm) wide (see note 2).
42" (1067mm)
Top View
1
/4"
3
13
⁄4" (349mm)
81⁄4" (210mm)
of 3" (76mm) off the floor . This distance may var y when a subbase is supplied. The standard subbase is available in 3"
(76mm) or 4" (102mm) heights. For units with hydronic heat,
the subbase is 8
legs providing for up to 1". (25.4mm) additional height.
3
⁄8" (Stamped) Louver
1
⁄8" (Architectural)
1
1
/4" (210mm) high. Each subbase has leveling
43" (1092mm)
1" (25mm)
22°
Front View
411⁄2" (1054mm)
See Note
17" (432mm)
1
3
⁄4"
(19mm)
81⁄4"
(210mm)
Side
View
See
Note
1
16" (406mm)
22"
(559mm)
Notes:
1. Unit pictured with subbase installed. Subbase is optional on 208V 230V units Subbase is standard on all 265V and units
with hydronic heat. See pages 5, 6 7 & 9 for subbase dimensions. Sides are adjustable.
2. Opening needs to be 16
5
⁄8 (422mm) x 425⁄8 (1083mm) when using a louver frame. See page 8, Figure B.
IM 671 / Page 4
Wall Sleeve Installation – Frame and Brick
A heavy-gauge, corrosion resistant cabinet/wall sleeve is provided for each unit. The cabinet/wall sleeve is either shipped in a
separate carton or shipped in a multi-pack of 15.
The standard cabinet/wall sleeve is designed to be easily installed in a variety of wall constructions.
1
Note: The center of gravity is 10
"
⁄
(260mm) from the rear
4
face of the wall sleeve. The wall sleeve must be inserted into
the was at least 10
1
⁄4" (260mm) or other support must be employed.
Support can be from a factory supplied subbase or from other
field supplied materials, the wall sleeve is not intended to replace the lintel. Recommended installation procedures are described below:
1. Clean the opening of all debris that may interfere with
installation.
2. If the unit is to be supplied with a subbase, refer to page
9 for installation procedure. Install subbase befor e installing cabinet/wall sleeve.
3. If the optional drain kit is to be employed (heat pump only),
refer to page 10 before proceeding.
4. Place a thin pad of soft mortar on bottom of the opening
and slide in the cabinet/wall sleeve. Be sure to recess the
wall sleeve enough to accommodate outside louver. This
recess is
3
⁄8" (9.5mm) for stamped louvers and 11⁄8" (32mm)
for architectural louver. Louver should be flush to exterior
surface when complete. Note: Do not recess if using the
external drain kit - see pg. 10.
5. Level cabinet /wall sleeve in both directions and secure
by anchoring with appropriate fasteners (as shown in figure C page 8). A
5
⁄16" (8mm) hole is provided on each side,
2" (51 mm) down from the top and 2" (51 mm) in from the
rear of the cabinet/wall sleeve. Additional holes may be
required to firmly secure the cabinet/wall sleeve.
Caution: Do not drill holes in the subbase of the cabinet/wall sleeve. Where a subbase is used, secure wall
sleeve to subbase with clips provided.
6. Caulk the cabinet/wall sleeve to the wall opening on both
inside and outside perimeter. Be careful not to plug the
weep holes. Caulking should be resilient, non hardening
type such as silicone.
Figure 5. Panel Wall Construction with Cord Connection
Steel Lintel
(by Others)
Mounting
Screws
by
Installer
Outdoor
Louver
Caulk
Perimeter
Both
Indoors &
Outdoors
3
⁄4"
13
(349mm)
(406mm)
Wall Receptacle
by Others
16"
17"
(406mm)
3" (76mm)
Finished Floor
or Carpet
Figure 4. Frame & Brick with Standard Electric Subbase
Steel Lintel (by Others)
Outdoor
Louver
(349mm)
Mounting
Screws
by
Installer
Wall Sleeve
Caulk
Perimeter
Both
Indoors &
Outdoors
Before
Installing
Louver
Note: Standard Subbase is available in 3" (76mm) or 4" (102mm) height.
Leveling legs provide adjustment of 1" (25.4mm).
3
4
(111mm)
3
13
⁄4"
16"
(406mm)
Power Supply
Connect
(Alternate Entry)
⁄8"
8
(203mm)
Room
Cabinet
Leveling
Leg
1
⁄4"
(406mm)
See Note
Finished Floor
or Top of Carpet
17"
Figure 6. Frame & Brick with Hydronic Subbase
Steel Lintel (by Others)
Outdoor
Louver
3
⁄4"
Mounting
Screws
by
Installer
Caulk
Perimeter Both
Indoors & Outdoors
Subbase
Side Channel
13
(349mm)
16"
(406mm)
Wall Sleeve
Alternate
Electrical
Connections
1
8
⁄4"
(203mm)
Room
Cabinet
Hydronic Subbase
17"
(406mm)
1
8
⁄4" (203mm)
Finished Floor
or Carpet
Leveling Legs w/1"
Adjustment
IM 671 / Page 5
Hydronic
Heating Coil
Wall Sleeve Installation – Panel Wall Construction
For panel wall and thin wall construction, it is recommended that a louver frame be used. Refer to page 8 for installation of
louver frame before continuing.
Panel wall and thin wall construction varies only slightly from
frame and brick construction Note: The center of gravity is
1
10
/4" (260mm) from the rear face of the wall sleeve. The wall
sleeve must be inserted into the wall at least 10
1
/4" (260mm)
or other support must be employed.
Support can be from a factory supplied subbase or from other
field supplied materials. Installation for this application is as
follows:
1. Clean the opening of all debris that may interfere with in-
stallation.
2. If the unit is to be supplied with a subbase, refer to page 9
for installation procedure. Install subbase before installing
cabinet/wall sleeve.
3. If the optional drain kit is to be employed (heat pump only),
refer to page 10 before proceeding.
4. Be sure the cabinet/wall sleeve is mechanically attached to
the wall and caulked to assure a proper seal. It is recommended that the louver is framed be used for this purpose
(See Figure B page 8)
5. Recess the wall sleeve so that the louver is flush with the
outside of the building. (Do not recess if using the external
drain kit - see pg. 10.)
Level cabinet wall sleeve in both directions and secure by
anchoring with appropriate fasteners (as shown in figure C
page 8), or drill additional holes as required to secure firmly.
Caution: Do not drill holes in the subbase of the cabinet/wall sleeve. Where a subbase is used, secure wall
sleeve to subbase with clips provided.
6.Level cabinet/wall sleeve in both directions and secure by
anchoring with appropriate fasteners (as shown in figure C
page 8), or drill additional holes as required to secure firmly.
Caution: Do not drill holes in the subbase of the cabinet/wall sleeve. Where a subbase is used, secure wall
Figure 7. Panel Wall Construction with Standard
Electrical Subbase
17"
(406mm)
1
⁄4"
8
(203mm)
Room
Cabinet
Floor
Louver Frame
3
13
⁄4"
(349mm)
16"
(406mm)
Wall Sleeve
Electrical Subbase
Outdoor
Louver
Caulk
Perimeter
Both
Indoors &
Outdoors
sleeve to subbase with clips provided.
7.Caulk the cabinet/wall sleeve to the wall opening on both
inside and outside perimeter . Be careful not to plug the weep
holes. Caulking should be resilient, non hardening type such
as silicone.
Figure 8. Panel Wall Construction with Cord Connection
(203mm)
17"
(406mm)
Cabinet
3" Min. (76mm)
Floor
Receptacle
by Others
1
8
⁄4"
Room
Louver Frame
16"
(406mm)
Conduit
3
13
⁄4"
(349mm)
Wall Sleeve
Min. 2 Supports
Field Supplied
Outdoor
Louver
Caulk
Perimeter
Both
Indoors &
Outdoors
Figure 9. Panel Wall Installation with Hydronic Subbase
17"
(406mm)
1
⁄4"
8
(203mm)
1
8
⁄4"
(203mm)
Room
Cabinet
Hydronic
Subbase
Louver Frame
13
(349mm)
16"
(406mm)
Wall Sleeve
Subbase
Side Channel
3
⁄4"
Outdoor
Louver
Caulk
Perimeter
Both
Indoors &
Outdoors
Power Supply Conduit
(Alternate Entry)
Subbase Side Channel
Note: Standard Subbase is available in 3" (76mm) or 4" (102mm) height.
Leveling legs provide adjustment of 1" (25.4mm).
IM 671 / Page 6
Power Supply Conduit
(Alternate Entry)
Leveling Legs w/1" Adjustment
Wall Sleeve Installation – Thick Wall Construction
Installation of cabinet/wall sleeve for thick walls require special consideration. Table 1 should be used to determine the
maximum wall thickness allowed for standard cabinet wall
sleeve. For thicker walls, cabinet/wall sleeve extensions are
available from your representative. Refer to pages 8 for pr oper
installation of cabinet/wall sleeve extensions.
Cabinet/wall sleeve installation in thick walls is similar to
frame and brick installation. The wall sleeve is not intended to
replace the lintel. Install as follows:
1. Clean the opening of all debris that may interfere with
installation.
2. If the unit is to be supplied with a subbase, refer to page
9 for installation procedure. Install subbase befor e installing cabinet/wall sleeve.
3. If the optional drain kit is to be employed (heat pump only)
refer to page 10 before proceeding.
4. If wall thickness exceeds dimensions shown in table 1 a
cabinet/wall sleeve extension must be used. Install the
extension as described on page 8. Once the extension is
attached to the cabinet/wall sleeve, place a thin pad of
soft mortar on bottom of the opening and slide in the wall/
sleeve extension assembly. Be sure to recess the wall/
sleeve enough to accommodate outside louver. This recess is
3
/8"(9.5mm) for stamped louvers and 11/8"(32mm)
for architecture louvers. Louvers should be flush to exterior surface when completed. Note : Do not recess the
sleeve if using the external drain kit - see pg. 10.
5. Level cabinet /wall sleeve in both directions and secure
by anchoring with appropriate fasteners, (as shown in figure C page 8), or drill additional holes as required to secure firmly. Caution: Do not drill holes in the subbase
of the cabinet/wall sleeve. Where a subbase is used,
secure wall sleeve to subbase with clips provided.
6. Caulk the cabinet/wall sleeve to the wall opening on both
inside and outside perimeter. Be careful not to plug the
weep holes. Caulking should be resilient, non hardening
type such as silicone.
Table 1. Maximum Wall Thickness without Sleeve
Extensions
Louver
Type
Stamped 14" (356mm) 91⁄2" (241mm) 131⁄8" (333mm)
Architectural 14
Subbase Subbase Subbase
7
⁄8" (378mm) 103⁄8" (264mm) 14" (356mm)
Maximum Wall Thickness
No Standard Hydronic
Figure 10. Thick Wall Construction with Cord Connection
NOTE: Wall sleeve to be
flush (Min.) with inside
finished wall.
Steel Lintel (by Others)
1
8
⁄4"
(203mm)
17"
(406mm)
Room
Cabinet
3" (76mm)
Floor
Caulk
Perimeter
Outdoor
Louver
Mounting
Screws
Installer
See
Table 1
3
⁄4"
13
(349mm)
16" (406mm)
by
Wall Sleeve
Extension
Wall Sleeve
Figure 9. Thick Wall Construction with Standard
Electrical Subbase
See
Table 1
Caulk
Perimeter
Both
Indoors &
Outdoors
Mounting
Screws
by
Installer
Outdoor
Louver
Note:
a. Standard Subbase is available in 3" (76mm) or 4" (102mm) height.
Leveling legs provide adjustment of 1" (25.4mm).
b. Wall Sleeve extension is available in various depths and supplied
as required.
See
Note b.
Wall
Sleeve
Extension
13
(349mm)
16" (406mm)
Wall Sleeve
Electrical Subbase
Steel Lintel (by Others)
3
⁄4"
(203mm)
3
4
⁄8" Min. (111mm)
1
8
⁄4"
17"
(406mm)
See Note a.
Floor
Wall Receptacle
(by Others)
Figure 11. Thick Wall Installation with Hydronic Subbase
See
Table 1
Caulk
Perimeter
Mounting
Screws
Installer
Outdoor
Louver
3
⁄4"
13
(349mm)
16" (406mm)
by
Wall Sleeve
Extension
Wall Sleeve
Steel Lintel (by Others)
1" (25.4mm)
1
8
⁄4"
(203mm)
Hydronic
Hydronic Subbase & Adjustable
17"
(406mm)
Heating
Coil
1
8
⁄4" (203mm)
Floor
Legs w/1" Adjustment
IM 671 / Page 7
Wall Sleeve Installation (Extensions & Louver Frames)
The standard cabinet/wall sleeve will accommodate a
maximum wall thickness described in table 1, page 7. For
thicker walls, cabinet/wall sleeve extensions are available
from your local representative. When it is supplied by the
representative, it is treated for maximum corrosion resistance and matched to exact size of the standard wall/
sleeve. Be sure to provide air splitters to prevent recirculation of condenser air. Air splitters should be placed in the
wall sleeve as shown in figure A. It is important that spacing
of the air splitters match exactly those dimensions shown in
figure A.
Installation
Wall sleeve extensions are shipped in a separate carton and
tagged to match the proper unit. Be sure to check tagging
of the extension against that of the unit. Install the wall
sleeve extension as follows:
1. Position the extension with standard cabinet/wall sleeve
so proper alignment with drain and mounting holes is
achieved.
2. Place a bead of caulk around the perimeter of the wall
sleeve and another bead around the mating side of the
wall sleeve extension so that the joint is watertight. Be
sure to use a resilient caulking such as silicone.
3. Assemble the wall sleeve extension to the wall sleeve.
Clean out weep holes to assure proper drainage.
4. Attach indoor drain kit (if used) according to the
instructions on page 10. Outdoor drain kits must be
installed after wall sleeve is in place.
5. Continue wall sleeve installation according to instruc-
tion #4 on page 7.
Louver Frame
Louver frames should be used for panel wall and thin wall
applications to assure positive anchoring to the wall. Recess
the cabinet/wall sleeve so that the louver is flush with the outside of the building. Place louver frame around cabinet/wall
sleeve as shown in figure B. Caution: Do not to drill holes in
the bottom of the wall sleeve. Secure angles at side and top
of walls.
Figure A. Wall Sleeve Extension
Wall
Sleeve
Extension
1
13
⁄8"
(333mm)
1
⁄2"
21
(546mm)
Figure B. Louver Frame
3
16
⁄
"
16
(411mm)
3
3
⁄
"
4
(92mm)
Figure C. Anchoring Methods
(1066mm)
73⁄8"
(187mm)
42
(1072mm)
42"
"
3
⁄
16
44
(1122mm)
Room
Side
G
16"
(406mm)
X
3
18
⁄
"
16
(1072mm)
"
3
⁄
16
Anchoring
Anchoring the cabinet/wall sleeve in the opening is accomplished as shown in figure C. Caution: Do not to drill holes
in the bottom as it will cause leaks. It is recommended that
rubber isolation washers be used with the fasteners to minimize sound transmission from the equipment to the wall, at
the point of contact.
IM 671 / Page 8
Expansion
Anchor
Bolt
Do Not Drill Holes
in Bottom of
Sleeve (Except for
Internal Drain Kit)
Molly or
Toggle
Bolt
Wood
Screw
Cripple Stud
Main Stud
Subbase Installation
Electric Subbase
An electrical subbase is optional for all 208V and 230V units.
A subbase is standard for all 265V units. The standard is available with 3". (76mm) or 4" (102mm) heights. The subbase contains leveling legs for adjustment of up to 1" (25mm) additional height. All subbases are factory supplied.
Installation
1. If the minimum depth subbase is required, discard the side
extension pieces.
2. If more than the minimum depth is required, determine the
depth of the side extension pieces desired and break at
proper score - line. Insert the extension pieces into the
Figure 12. Electric Subbase
3" x 5"
(76 to 127mm)
Opening for
Electrical and/or
Drain Rough-In
Knockouts for
Opitonal Fuse &
Disconnect Switch
Electrical
Junction
Box for Main
Power Connection
Receptacle (Req’d
on 265V Units)
Plug/Cord Cover
(Req’d on 265V
Units)
5
⁄8"
(16mm)
front assembly and secure with two short black screws at
each side.
3. Insert leveling bolts into subbase bottom flange. Four (4)
bolts will be needed if side extensions are used. Only two
(2) bolts are required if side extensions are not used.
4. Place the subbase on the floor and align its center line
with the center line of the wall opening. Do not fasten the
subbase to the floor. Attach the subbase to the cabinet/
wall sleeve using the clips provided with the subbase.
5. The wiring should be roughed in and the conduit connected
to the subbase junction box. Complete the installation by
wiring the receptacle to the incoming power supply.
C
7
⁄8"
(22mm)
3"
1
2
(63.5mm)
5"
(127mm)
⁄2"
Leveling Screw (4 Places)
Front Elevation (Three Front Panels in Place)
L
Electrical
Knockouts
17"
(432mm)
41
(1054mm)
Plan
1
⁄2"
12"
(305mm)
0" (0mm) to 9
(238mm)
43⁄8" (111mm)
11⁄2" (38mm)
3" (76mm) or
4" (102mm)
0" (0mm) to
1" (25mm)
3
⁄8"
Hydronic Subbase
A subbase is supplied as standard with all hydronic units. This
subbase measures 8" (203mm) in height and includes the
hydronic heating coil. Refer to IM Bulletin 419 for installation
details. In addition, rough in supply and return piping.
Figure 13. Hydronic Subbase
1
⁄4" (203mm)
8
As
Req’d.
71⁄4"
(184mm)
3
⁄4"
(19mm)
3
/4"
21/2"
3" x 5" (76 to 127mm) Opening
for Electrical and/or Piping Rough-In
15"
(381mm)
5
⁄8" (15.9mm) O.D.
Copper Sweat
Perm.
Mesh Filter
(1054mm)
1
⁄2"
41
Electrical and plumbing rough-in can be done through the back
of the hydronic heat section or through the openings provided
in the bottom of the subbase. The finished piping can be done
now or later.
51⁄4"
(63.5mm)
"
4
⁄
3
6
(171mm)
(133.3mm)
1
⁄2"
2
"
⁄
1
1
"
2
⁄
1
7
(191mm)
2
(83mm)
(38mm)
51⁄2"
(140mm)
Receptacle (Factory Installed
when Fuse & Disconnect are
Furnished)
Optional Fused Disconnect
31⁄4"
Electrical
Knockout
1
1
⁄4" (6mm) to
1
⁄4" (32mm)
8" (203mm)
Leveling Legs
IM 671 / Page 9
Installation of Optional Condensate Drain Kit
SCREWS
COVER PLATE
COVER PLATE
TUBE
GASKET
DETAIL
1
/
2
”
(13mm)
O.D.
CABINET
BOTTOM
Note: Heat pump models will generate condensate during
the heat season. To ensure that no condensation will run
down the building, always use a drain kit with heat pump.
Condensate drain kits can be supplied for external applications. Figure 14 illustrates the installation of the indoor drain
kit. The indoor drain kit should be installed before placing the
cabinet/wall sleeve into the opening. Install as follows:
1. Locate the drain so that it will be on the room side of the
wall when the cabinet/wall sleeve is installed.
2. Drill a
1
/2" (13mm) diameter hole in the base of the cabi-
net/wall sleeve for the drain line.
3. Drill two (2)
5
/32" (4mm) pilot holes for the mounting screws.
These holes can be located using the drain kit as a pattern.
4. Assemble the drain kit as shown in figure 14 and securely
fasten it to the cabinet/wall sleeve with the screws provided.
Figure 14. Internal Drain Kit
Contractor to Drill
Three (3) Holes to
Accept Drain Kit
5. Slide the cabinet/wall sleeve into the opening and anchor
it into place.
Assembly of the external drain kit should be completed after
the cabinet/wall sleeve has been installed. Note: When using
the external drain kit, the sleeve must be flush or beynd the
outside finished wall - do not recess. Install the external drain
kit as follows:
1. Assemble the drain kit as shown in figure 15.
2. Choose which side of the cabinet/wall sleeve the drain kit
is to be installed.
3. There are weep holes and pilot holes provided in the cabinet/wall sleeve from factory. Place the drain kit against
the chosen weep hole and fasten securely with screws
provided.
4. Cover the unused weep holes with the block off plate supplied with the drain kit.
Room Side
See Detail
Below
Figure 15. External Drain Kit
Neoprene Sponge Gasket
Steel Mounting Plate
Neoprene Sponge Gasket
Steel Mounting Plate
Square Drain Holes
Square Drain Holes
1
⁄2" (13mm) O.D. Drain Tube
Room Side
IM 671 / Page 10
Installation of Louvers
1 Remove louver and mounting hardware from the ship-
ping carton.
2 Remove temporary cardboard weather panel from
cabinet/wall sleeve.
3. Make a temporary handle by looping a piece of flexible
wire or heavy cord through the louver. This enables the
installer to keep a firm grasp on the louver when installing
from inside the room.
Installation of Chassis
Proper installation of the heating/cooling chassis is extremely
important to the proper operation of the unit. Whether the wall
sleeve has been separately shipped or shipped with the
chassis, proper installation is as follows:
1. Remove shipping carton and inspect for any shipping
damage. Report any found to the carrier.
2. Save shipping carton to cover installed conditioner until
construction is complete.
3. Check nameplate data on chassis to insure that the correct job site distribution has been made with respect to
heating/cooling capacities. Generally, corner r ooms require larger capacities.
4. Set front panel and air filter aside.
5. Remove chassis from carton by pulling evenly on substantial portion of unit. Caution: Do not pull on Evapo-
rator Top Panel.
6. If wall sleeve has been previously installed, remove
temporary cardboard weather panel.
7 If louver has been previously installed, remove temporary
cardboard weather panel.
8 Place Tinnerman clips on wall sleeve. Clips and mount-
ing screws enclosed in a bag attached to the inside chassis side panel.
9. Rotate fans to be sure they are free of obstruction.
10. Check all fasteners to make certain they did not loosen
during shipment. Do not loosen nuts holding down compressor; they are factory installed.
11. Do not lubricate motors before start-up. Motors are factory lubricated. Consult “Scheduled Maintenance” section on page 13 for lubrication instructions.
12. Check all copper tubing and capillaries for proper clearance so they will not hit or rub during operation.
13. Slide chassis into wall sleeve until firmly seated against
weather seals. Caution: Do not push on coil surface,
control box cover or fan scroll. Make sure tubing does
not catch when inserting chassis.
14. Secure the chassis in the cabinet/wall sleeve with four (4)
screws packaged with the Tinnerman clips.
15. Plug electrical cord into receptacle. Excess cord for 208V
and 230V units should be coiled neatly and stored in the
conditioner. Attach plug/cord cover to front face of subbase on 265V.
16. Set the manual damper operator in open or closed position as desired. On units equipped With the optional elec-
4. Angle the louver through the opening at the rear of the
wall box, then pull the louver back to the wall sleeve flange
so that the louver studs pass through the holes in the
flange.
5. Attach washers and nuts and secure louver in place.
6. If the heating/cooling chassis is not to be immediately
installed, replace the weather panel.
tric fresh air damper, set the “auto/off” switch to the desired position. In “auto,” the damper is open when ever
the fan motor is running. The auto/off' switch is located
on the bottom front face of the control box.
17. Check the “Override/Normal” dial (heat pump only) located on the top of the unit to the left of the controls. For
normal heat pump operation, position the dial clockwise,
to “Normal”. Only the electric heater will operate when
dial is in “Override” position,(maximum counter clockwise).
18. Set fan cycle switch (located on the lower front face of
the control box) for constant or cycling indoor fan. With
the switch in the “cycle” position, the indoor fan will shut
off when the thermostat shuts off heating or cooling.
19. Set the temperature limiting feature to the desired range
of thermostat operations. As shipped, the range is 65°F
to 85°F.
20. Replace the air filter and front panel.
21. For hydronic units:
a. Route the two low voltage valve wires, with Molex con-
nection, through the opening provided in the subbase and
connect to valve.
b. Connect short power cord from the chassis to the r ecep-
tacle in the subbase heat section.
c. Relocate thermostat bulb to bracket located in the sub-
base. Refer to IM419 which is provided with the hydronic
subbase.
d. Replace filter and louvered subbase front panel.
22. When installing the E vintage chassis in older wall sleeves,
bend the Sheet metal flange at the rear of the wall sleeve
rails to allow full insertion of the chassis.
Figure 16. Chassis Installation
Factory Supplied
Holes (2)
Wall Sleeve
Chassis
Wall Sleeve Rails
(See Note 22 Above)
Tinnerman Clips
Damper Actuator
IM 671 / Page 11
Adjusting Temperature Limiting
A temperature limiting device is furnished as a standard
to allow the owner to set the minimum and/or maximum
temperature selections. Adjust this device as follows:
1 Remove the two screws that secure the lower ends of
the front panel and remove the front panel from the unit.
2 Pull off the control knobs and remove polycarbonate mem-
brane overlay with metal plate.
3. Move the 2 screws that stop the “pointer” to the desired
location.
Electrical Service
All wiring should be done in accordance with all local and
National Electrical Code requirements. The 2-Motor unit has
a multitap heater so the kw is determined by the field installed
power cord selection. Refer to it & the data plate for proper
overcurrent protection. The 1 motor unit does not have a
multitap heater and the power cord is factory installed. The
conditioners are supplied as follows:
Electrical Heating Unit
1. 208V and 230V models are supplied with a power cord
which will exit from beneath the conditioner on the control side. The cord has a usable length of 72" (1829mm)
from where it exits the conditioner. The use of an extension cord is not recommended. Time delay fusses are
recommended to avoid nuisance tripping. The receptacle
is generally mounted beneath the conditioner, on or recessed in the wall so that it is concealed by the conditioner over hang. The space under the conditioner must
be at least 3" (76mm) high.
2. An electrical subbase is available for 208V and 230V units
and contains a junction box for a field mounted receptacle All electrical connections are made within the sub-
4. Replace overlay.
5. Once unit is in operation, rotate knob to maximum heat
and / or maximum cool to check temperature limits. Repeat procedure listed above until desired temperatur e limitations are achieved.
6. Replace front panel and tamper resistant front panel
screws removed in step #1.
base, thus eliminating the need for a wall mounted receptacle.
The subbase is available in 3" (76mm) or 4' (102mm) height
and can be furnished with factory mounted fused disconnect
option.
3. On all 265V models, an electrical subbase is required.
The chassis is supplied with a “short cord” which is just
long enough to plug into the subbase. A plug / cord cover
is also furnished with the subbase to make the interconnecting cord inaccessible, as required by the National
Electrical Code. The conditioner is marked with the minimum circuit ampacity and maximum fuse size.
Hydronic Heating Unit
1. All hydronic units are supplied with a subbase. The subbase is 8
heating coil and electrical connections.
2. A short cord is furnished to be plugged into the top of the
subbase. A plug/cord cover is not furnished with these
units.
3. A fussed disconnect option is available and comes
furnished factory mounted.
1
⁄4" (210mm) high and houses both the hydronic
Equipment Start-up
Initial start-up of the Incremental
personnel is usually the responsibility of the installing contractor. This start-up consist of inspecting and operating the
equipment for all functions at the time of initial installation,
and making necessary adjustments. It also includes demonstrating its proper operation to the owner or his agent. Note
that unless otherwise specifically agreed to in writing, AAFMcQuay Incorporated includes no field labor , star t-up service
or the like in the price of its equipment. After the equipment
leaves the factory, it may become damaged or maladjusted
during transpiration or on the job. Sometimes wires are disconnected accidentally, or fan motors move on their bases
due to rough handling, causing fans to strike. The correction
of such conditions is part of start-up.
Before Starting Equipment, Make Certain That:
1. Correct voltage has been supplied to the equipment.
2. The electrical plug from the control box has been inserted
into the receptacle.
During Start-up (applies only to standard equipment):
1. Set manual ventilation damper to Open or Closed position as required by owner
2. Select “HIGH HEA T” on the rotary switch. Move thermostat to the extreme heating position (counterclockwise).
IM 671 / Page 12
®
conditioners by experienced
If the CYCLE/CONST ANT switch is placed in the “CYCLE”
position, heat and indoor fan motor should cycle on and
off as the thermostat requires. We suggest leaving this
switch in “CONST ANT”, to provide better overall temperature control. Select “LOW HEAT”, on the rotary switch;
fan should change to low speed . If it is a heat pump unit,
electric resistance heat will be delivered at outdoor temperatures less than 30°F (1.6°C). Outdoor fan should be
on whenever compressor operates.
3. Select “HIGH COOL”. Move thermostat to the extreme
cooling position (clockwise). Compressor and indoor fan
motor should cycle on and off as the thermostat requir es.
Select LOW COOL; fan
should change to lower speed. Outdoor fan should be on
whenever compressor operates.
4. Select FAN Position. Indoor fan should operate at high
speed or low speed as selected. Neither heater nor
compressor should continue to operate.
5. Select Stop Position. Fan should stop, and neither heater
nor compressor should continue to operate.
Note: Direction of conditioner air may be adjusted by reposi-
tioning the discharge grille to change airflow pattern in
a room. The building superintendent or assistant manager should be requested to make any changes.
Installing Remote Mounted Thermostat Scheduled Maintenance
Units that are furnished with remote mounted thermostats
should be wired as shown in Figure 17. Other considerations
for this arrangement are as follows:
1. When wiring the low voltage plug and receptacle disconnect, provide enough wire to move harness out of the
way for chassis removal
2. If subbase is used, a small hole must be drilled and
grommeted in the subbase front to allow passage of the
low voltage wires.
3. If slave units are to be employed, connects shown in Figure 17. With this arrangement, the loop between terminals N2 and N4 of the slave unit must be severed. The
standard master transformer handles 10 VA power draw
and each slave unit draws 5VA. If more than one slave
unit is used, the master transformer must be replaced
with a larger one. The number of slave units that can be
connected is limited to the maximum amperage rating of
the thermostat contacts.
4. When using a programmable wall thermostat, splice into
the jumper going from N2 to N4 of the master unit and
connect it to the common terminal of the thermostat. Refer
to the instructions furnished with the chosen thermostat
to locate the common terminal. Note: It may be necessary to place a larger VA transformer in the unit when
using certain programmable thermostats. Check the VA
draw of the chosen thermostat,
Figure 17.
Optional Wall Plate
Temperature
Fall
System
Switch
Heat
Off
Cool
On
Auto
Fan
Switch
Incremental conditioners are built to last. With proper care,
the unit should provide uninterrupted service for many years.
Scheduled maintenance of this equipment as described bellow, is the key to the equipment's longevity.
A. Air filters must be cleaned at regular intervals. Twice an-
nually may be adequate in some areas while twice monthly
may be required in others. Areas with high dirt and lint
content or heavy usage of units require more frequent
filter maintenance than those areas of relatively clean
operating or low usage conditions. Unit malfunction will
occur if air filters are not kept clean. Rinse filter with hot
water and a mild detergent. Let dry and oil lightly to enhance dust collecting ability.
B. McQuay recommends that every year the chassis be re-
moved for a thorough checkup. This should be completed
as follows:
1. Unplug unit from power source.
2. Remove front panel.
3. Remove chassis from cabinet and move it to the maintenance department. Replace with spare chassis or weather
plate.
4. Check all seals and Insulation and repair as required.
5. Check all wiring and controls for hazardous conditions.
6. Thoroughly clean discharge grilles.
7. Cover motors and control module with water tight material and wash evaporator coil, condenser coil and base
pan using hot water and a mild soap.
WARNING
Residential and institutional cleaning compounds can cause
permanent damage to the packaged terminal unit. To avoid
damage to unit controls and heat transfer surfaces, do not
spray cleaning compounds onto the discharge grille, return
air opening, or unit controls. Normal cleaning can be accomplished by wiping the unit surface with a damp cloth. When
using cleaning compounds on carpets, floors or walls, turn
the unit off to avoid drawing potentially damaging vapors into
the package terminal unit.
Low
Voltage
Plug &
Receptacle
Disconnect
Wires from Control
Master Unit
Wires from Control
Slave Unit
See
Note
3
8. Clean condensate drain and clear weep holes.
9. Dry equipment thoroughly, especially electric parts and
installation. 10. Clean any rust spots with steel wool and
paint with rust inhibiting paint.
11. Clean insulation or replace if necessary.
12. Check insulation on suction tube and replace if necessary.
13. Check all fasteners and tighten as required.
14. Clean and oil damper door and linkage.
15. After the first year , oil fan motors. For eight hour/ day operation, add eight to ten drops to each bearing. Use commercial grade electric motor oil or SAE # 10 non-detergent motor oil.
16. Test run chassis before reinstalling or resuming to spare
parts stock.
IM 671 / Page 13
Recommended Spare Parts
An inherent advantage of the Incremental system is that failure of any part affects only one incremental conditioner and
does not interrupt the operation of the rest of the system. A
further advantage is that a failed part can be quickly and easily replaced, thus minimizing the inoperative time of the equipment. This is so, however , only if a replacement part is quickly
available. In order to replace a failed part quickly and keep all
incremental conditioners in good operating condition, AAFMcQuay Incorporated recommends that at the time incremental conditioners are purchased, owners arrange for a small
stock of replacement parts.
Where an owner carries such a stock, immediate replacement
parts of defective part is possible. The defective part can then
be returned to AAF-McQuay Incorporated or one its authorized service stations. So long as it is still in warranty, it is
repaired or replaced and returned to the owner with out cost
for shop labor and material. Thus, the stock of replacement
parts is constantly replenished. To the right is listed the kinds
of parts which AAF-McQuay Incorprated recommends to be
Refrigeration Cycle
Every motor-driven refrigeration system operates on the car not
cycle. A practical understanding of what goes on at the various steps in this cycle can be a big help to the troubleshooting mechanic. Figure 18 illustrates the refrigeration cycle. The
diagram shows what occurs in each component of a hermeti-
carried in stock, together with the quantity of parts recommended per 100 incremental conditioners installed.
Cooling Chassis............................................................ 1
Compressor Overload Device....................................... 1
Compressor Running Capacitor ................................... 1
Fan Motor. Capacitor .................................................... 1
Control Switch .............................................................. 2
Thermostat.................................................................... 2
Knob for Control Switch & Thermostat......................... 6
Control Relay (if used)................................................... 1
Damper Motor (if auto damper) .................................... 2
Electric Resistance Heater (if electric heat) .................. 1
Touch-up Paint (1 pt. spray can)................................... 1
For the current spare parts list, and applicable prices, see your
AAF-McQuay representative or write AAF-McQuay Service,
P.O. Box 1551, Minneapolis, MN 55440.
cally sealed system, as used in all AAF-McQuay Incorporated
equipment. The temperatures shown are typical of what they
might be when the air entering the condenser (outdoor temperature) is 95°F, (350 C) and the temperature of the conditioned space is 80°F (270 C).
Figure 18. Refrigeration Cycle
80°F. (27°C.)
Room Air
to Evaporator
Evaporator
45°F. (7° C.)
R22 (Liquid and Gas)
to Evaporator
Capillary Restrictor
110°F. (43°C.)
Liquid R22 to
Capillary
60.3 psia (416 kPa)
& 60°F. (15.5C.)
to Compressor (Gas)
120°F. (49°C.) Condenser Air to Outdoors
Condenser
95°F. (35°C.)
Outdoor Air
to Condenser
285.3 psia (1967.7 kPa) R22 to Condenser (Hot5 Gas)
IM 671 / Page 14
60°F. (15.5°C.)
Conditioned Air to
Room
Hermetic Compressor
These items should be checked by a qualified service technician only.
Trouble Cause Cure
1. Blowers won't operate on cool
2. Blowers operate on cool but compressor
does not start
3. Blowers run on cool and compressor starts but stops
after a short interval.
4. Blowers run on cool and compressor starts and runs,
but compressor occasionally stops (on overload device).
5. Compressor starts and runs on cool but
blowers do not run.
6. Compressor starts and runs on cool, but fan motor starts,
then stops.
7. Equipment gives electrical shock.
3. Insufficient cooling capacity.
Troubleshooting Chart
a. No power
b. Faulty push-button switch
c. Loose connections at push-button switch
a. Thermostat set too high.
b. Heat valve is open and heat is on.
c. Low voltage.
d. Faulty push-button switch.
e. Faulty connection at push-button switch.
f. Defective wiring to thermostat.
g. Loose connections at compressor terminals.
h. Wiring to compressor terminals defective.
i. Loose connections in compressor overload device.
j. Starting capacitor malfunctions (open circuited, short
circuited or loss of capacity).
k. Defective compressor motor (short circuited, open cir-
cuited, grounded).
a. Operation of overload device due to overloading com-
pressor motor.
a. Low voltage due to overload circuits within building or
throughout the local power system. Due to varying power
demands, this condition might exist only at certain times
during the day or on very hot days.
b. High voltage due to fluctuations in local power system;
usually occurs during low load periods of the day
c. Partial short circuit in compressor motor . Under nor mal
loading a compressor with a partial short circuit might
appear to be operating all right; increased condensing
air temperature might then cause a short.
a. Faulty push button switch.
b. Open circuited blower motor.
c. Blower rubbing against its housing.
d. Bearings on blower motor seized.
e. Loose connection at push-button switch.
a. Operation of the internally connected overload device
due to a short circuit in blower motor.
b. Windings, rubbing of blower wheel or lack of lubrication
in blower motor bearings.
a. Grounded electrical circuit.
a. Equipment standing too long without being run.
b. Insufficient airflow through condenser due to:
1) Dirty condenser.
2) 0bstructed louver on outer cabinet or wall
box.
3) Condenser blower/fan not running.
4) Condenser blower/fan not up to speed.
5) Condenser blower/fan slipping on motor
shaft.
6) Recirculation of condenser air.
c. Insufficient airflow through evaporator due to:
1) Dirty evaporator.
2) Ice on evaporator coils.
3) Dirty air filter.
4) Obstructed discharge grilles.
5) Evaporator blower motor not running.
6) Evaporator blower motor not up to speed.
7) Evaporator motor slipping on motor shaft.
d. Heat load in room exceeds capacity of equipment.
e. Windows and doors in room are open
f. Compressor not pumping, indicated by:
1) Low wattage.
2) Condenser not warm, evaporator only
partially cool or not at all .
g. Restricted capillary or strainer.
1 ) Frost on capillary or strainer
2) Low wattage.
3) Condenser not warm.
4) Evaporator partially frosted, only partially cool
or not at all.
a. Check supply line fusses, circuit breakers, and be sure
the power is on. Blown fuses would indicate circuit over loading, a short circuit, or a ground condition in the circuit Voltage supply to the equipment should be checked.
Voltage underload must be within 10% of voltage given
on date plate.
b. Replace.
c Tighten.
a. Adjust Rotate control knob to “Cooler."
b. Close heat valve.
c. Check as above.
d. Replace.
e. Tighten.
f. Replace.
g. Tighten.
h. Replace.
i. Tighten.
j. Replace.
k. * Ship cooling chassis prepaid to nearest McQuay au-
thorized warranty station.
a. Check voltage supply. Clean condenser inside and out.
Check at outside face of condenser for recirculation of
condenser air. Put air "splitters" in, if missing. Check
compressor for short circuit. If defective, ship cooling
chassis to nearest McOuay authorized warranty station.
a. Run separate electric line to equipment Consult local
power company.
b. Consult local power company.
c. If confirmed, ship cooling chassis prepaid to nearest
McOuay authorized warranty station.
a. Replace.
b. Replace.
c. Adjust blower motor or blower wheel position.
d. Lubricate motor with SAE No. 10 oil. (it may be neces-
sary to remove blower assembly to do this).
e. Tighten.
a. Adjust blower/fan wheel on shaft or blower motor mount-
ing. Lubricate with SAE No.10 (see above)
b. Adjust blower wheel or motor, or replace wheel.
a. Eliminate ground.
a. If the air conditioner is allowed to stand for an extended
length of time without being run on cool, it is possible
for all the refrigerant to become absorbed in the oil in-
side the compressor and refrigeration circuit. If this
should happen there will be no cooling until the neces-
sary working pressures have been established. This will
take about 5 minutes of continuous running.
b.
1) Clean.
2) Remove obstructions.
3) Check same as in the case of malfunctioning
condenser air blower.
4) Check for correct voltage. Oil blower motor
it necessary
5) Adjust blower position and tighten setscrews.
6) Correct as in No 3 above.
c.
1) Clean.
2) Turn equipment off to let ice melt (see last
two items of No. 9 “Too much cooling," on page 15.
3) Clean or replace.
4) Remove obstructions.
5) Check as in No.1.
6) Check for correct voltage. Oil motor if necessary.
7) Adjust blower wheel position and tighten setscrew
d. Refer to original load calculations, r ecalculate heat load.
e. Close them.
f. * Ship prepaid to nearest McQuay warranty
station.
g. * Ship prepaid to nearest McOuay warranty
station.
IM 671 / Page 15
Trouble Cause Cure
9. Too much cooling.
10. “Sweating.”
11. Blowers won’t operate on Heat.
12. Equipment is noisy.
13. Insufficient or no heat.
Troubleshooting Chart
These items should be checked by a qualified service technician only.
a. Thermostat set too low.
b. Defective thermostat
a. Condensate drain from evaporator to condenser
plugged.
b. Insulating seals on equipment damaged.
c. Evaporator blower motor not up to speed.
d. Evaporator blower incorrectly positioned.
a. No power.
b. Heat is off (equipment with heat fan lock out).
c. Faulty push-button switch.
d. Loose connections at push-button switch.
e. Thermostat set too low.
a. Blower rubbing against enclosure.
b. Blower motor bearings dry.
c. Loose blower hold-down nuts on motor-bracket
assembly
d. Refrigerant absorbed in compressor oil after extended
shutdown.
e. Equipment improperly installed.
f. Damper solenoid hums.
g. Loose terminal box cover on side of compressor.
h. Loose electrical components.
i. Copper tubing vibrating.
j. Harmonics.
a. No steam or hot water being applied.
b. No power.
c. Faulty push-button switch.
d. Loose connection at push-button switch.
e. Thermostat set too high.
f. Thermostat faulty.
g. No power output on transformer secondary.
h. Inoperative valve.
1) Steam valve N/C.
2) Hot water valve N/C.
a. Adjust.
b. Replace.
a. Remove obstructions to water flow.
b. Adjust or replace.
c. Check for correct voltage. Oil motor if necessary.
d. Tighten.
a. See No. 1.
b. Open heat valve or turn on heating system.
c. Replace.
d. Tighten.
e. Adjust. Rotate control knob to 'warmer."
a. Adjust fan position on motor shaft or reposition fan
motor bracket assembly.
b. Lubricate with SAE No.10 oil or replace motor.
c. Align blower assembly and tighten nuts.
d. Noise will disappear after equipment runs awhile.
e. Make necessary adjustments to components.
f. Check for proper adjustment. Apply silicone oil or
grease to gap between solenoid and armature.
g. Tighten.
h. Fasten securely.
i. Occasionally equipment will have noise for no
apparent reason. Inspection has revealed no loose
components that might be the source of the noise.
Due to the action of the compressor, it is possible to
have internal noise develop if the refrigerant tubing
has become bent even slightly. To distinguish this
condition from the simple rattle producing vibration
caused by loose screws, nuts and other components,
grasp the refrigerant tubing at various points
throughout the system until a point is found where the
noise is eliminated or reduced. Bend the copper
tubing very gently until the noise disappears.
j Tighten.
a. Contact building management.
b. Check power supply line fuse, circuit breakers. Blown
fuses would indicate circuit overloading, a short
circuit, or a grounded condition in the circuit.
c. Replace.
d. Replace wire or tighten.
e. Adjust. Rotate knob to 'warm."
f. Replace.
g. Replace.
h.
1) Temporarily lock valve open; replace.
2) Replace.
Notes:
This guide was prepared with standard equipment in mind. If equipment is special, it may not be entirely applicable.
* If equipment is still in warranty.
** Note: Before trying to corr ect the noise, determine its cause: conditioned air blower, compressor or condenser blower. Operate the conditioned air blowers only . If this doesn't cause the noise, operate on cooling. Then disconnect one compressor lead. If
the noise stops, the compressor is the source, If not, it is caused by the condenser blower.
Heating/Cooling Chassis & Front Panel
Size 007.............................................. 140 Ibs. (63 kg)
Size 009.............................................. 140 Ibs. (63 kg)
Size 012.............................................. 145 Ibs. (65 kg)
Size 015.............................................. 145 Ibs. (65 kg)
Cabinet/Wall Sleeve:...................................... 36 Ibs. (16kg)
Louvers:
Flush-stamped .........................................6 Ibs. ( 3kg)
Architectural ............................................. 8 Ibs. ( 3kg)
Subbase:
3" (76mm) High Electrical.................... 10 Ibs. (4,5 kg)
4" (102mm) High Electrical.................. 10 Ibs. (4.5 kg)
8" (203mm) High Hydronic..................... 20 Ibs. (9 kg)
Extendaire:
Primary Discharge Section.................. 10 Ibs. (4.5 kg)
36" (914mm) Duct Section... ................ 10 Ibs. (10 kg)
Motorized Water/Steam Valve ......................... 2 lbs. (.9kg)
Electrical Receptacle........................................
Plug Cord Cover................................................
1
⁄2 lb. (.5 kg)
1
⁄2 lb. (.5 kg)
IM 671 / Page 16
Wiring Diagram - PTAC (1-Motor)
Standard Manual Changeover Control
Model ........................... PAEC, PAES, PSEA, PSEC, PSEH, PSEI, PSES
Thermostat Unit
Heat.............................. Electric
Changeover.................. Manual
IM 671 / Page 17
Standard Manual Changeover Control
Wiring Diagram - Heat Pump (1-Motor)
Model ........................... PAHC, PAHS, PSHA, PSHC, PSHI, PSHS
Thermostat ...................Unit
Heat.............................. Electric
Changeover.................. Manual
IM 671 / Page 18
Standard Manual Changeover Control
Wiring Diagram - Steam Heat with Normally Closed Valve (1-Motor)
Model ........................... PAEC, PAES, PSEC, PSEH, PSES
Thermostat ...................Unit
Heat.............................. Steam
Changeover.................. Manual
IM 671 / Page 19
Standard Manual Changeover Control
Wiring Diagram - Hot Water Heat with Normally Open Valve (1-Motor)
Model ........................... PAEC, PAES, PSEC, PSEH, PSES,
IM 671 / Page 20
Thermostat ...................Unit
Heat.............................. Water
Changeover.................. Manual
Wiring Diagram - PTAC (2-Motor)
Standard Manual Changeover Control
Model .....................PDEA, PDEC, PDEH, PDEI, PDES, PFEC, PFES
Thermostat .............Unit
Heat........................Electric
Changeover............Manual
IM 671 / Page 21
Standard Manual Changeover Control
Wiring Diagram - Heat Pump (2-Motor)
Model ........................... PDHA, PDHC, PDHI, PDHS, PFHC, PFHS
Thermostat ...................Unit
Heat.............................. Heat Pump w/Back-up Electric
Changeover.................. Manual
IM 671 / Page 22
Standard Manual Changeover Control
Wiring Diagram - Steam Heat with Normally Closed Valve (2-Motor)
Model .....................PDEC, PDEH, PDES, PFEC, PFES
Thermostat.............Unit
Heat........................Steam
Changeover............Manual
IM 671 / Page 23
Standard Manual Changeover Control
Wiring Diagram - Hot Water Heat with Normally Open Valve (2-Motor)
IM 671 / Page 24
Model .....................PDEH, PDES, PFEC, PFES
Thermostat.............Unit
Heat........................Water
Changeover............Manual
NOTES
IM 671 / Page 25
NOTES
IM 671 / Page 26
One-year Warranty of Entire Conditioner- AAF-McQuay Incorporated, hereinafter referred to as the "Company," warrants to the original owner that each entire Incremental Comfort Conditioner is free from defects in material and workmanship. Any part or portion thereof which becomes defective
under normal use during the period of this warranty will be
repaired or replaced provided the Company's examination shall
prove to its satisfaction that the part was or became defective
under normal use. This warranty contemplates that first year
maintenance labor was arranged for with the installer or otherwise at the time the conditioner was purchased or installed.
The Company's obligations under this warranty are limited to
:(a) Repairing the defective part or (b) Furnishing a replacement part provided the defective part is returned to the factory, transportation charges prepaid. No reimbursement will
be made for expenses incurred in making field adjustments or
replacements unless specifically authorized in writing by the
Company.
This warranty constitutes the buyer's sole remedy. It is
given in lieu of all other warranties. There is no implied
warranty of merchantability or fitness for a particular purpose. In no event and under no circumstance shall the
Company be liable for incidental or consequential damages, whether the theory by breach of this or any other
warranty, negligence, or strict tort.
No person (including any agent, salesman, dealer or distributor) has authority to expand the Company's obligation beyond
the terms of this express warranty, or to state that the performance of the product is other than published by the Company.
One - Year Refrigeration Circuit Warranty -
Hermetically sealed motor-compressor assemblies and all
components of refrigeration circuits not readily separable ther e
from are warranted to the original owner for one year. Refrigerating circuits consist of the motor-compressor assembly,
evaporator coil, condenser coil and interconnecting tubing.
Repairs under this warranty will be made at the Company's
expense provided that the refrigeration circuit is delivered without shipping damage, transportation prepaid to the factory or
a factory designated repair station, at the Company's option.
This One-Year warranty does not include any other parts of
the equipment such as filters, fans, fan motors, controls, cabinet parts, electrical relays, capacitors, protective devices, or
wiring. The Company is not obligated under this warranty for
field labor such as services for inspection, removing, packing,
and/or reinstalling the refrigeration circuit, nor for r eturn transportation charges.
General Conditions- The above warranties are void if the
Company's equipment has been damaged, misused, installed
in a corrosive atmosphere, subjected to abnormal use or service or its serial numbers has been altered, defaced or removed, or payment for the equipment is in default. The company is not responsible for the service to correct conditions
due to misapplications, improper installation, inadequate wir ing, incorrect voltage conditions or unauthorized opening of
the refrigeration circuit, nor for consequential damages. In case
the Company's equipment is installed in conjunction with cabinets, grilles, louvers, controls or other parts manufactured by
others, these warranties apply only to the Company's manufactured portion of the equipment. The conditions of the war ranty plan are effective for (18) months from the date of factory shipment. The Company reserves the right to make a
handling and inspection charge in the case of parts or equipment improperly returned as defective and /or as being in
warranty.
nd
2
To 5th Year Warranty
Standard:
nd
2
to 5th Year Compressor Warranty
The standard One (1 ) Year Warranty on all parts and the refrigerant circuit is now supplemented with the 2nd to 5th Year Compressor Warranty free of charge. This warranty covers the compressor only. No labor is included for removal or replacement in the
equipment. Shipment of the compressor will be made to the customer or the warranty station.
Note: The 2
nd
to 5th Year Compressor Warranty does not apply for units installed in a corrosive atmosphere.
IM 671 / Page 27
AAF-McQuay Inc.
4900 Technology Park Boulevard, Auburn, NY 13021-9030 USA (315) 253-2771
Printed on recycled paper containing at least 10% post-consumer recycled material.
Loading...