McQuay PSEx Installation Manual

Installation & Maintenance Data IM 671
Suite™ II PTAC/PTHP Conditioner
1-Motor (Standard) 2-Motor (Premium)
Group: PTAC Part Number: 059490800
Date: April 1999
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.
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