Payne PA1P048 Installation manual

& Start-Up
PAl P, PA2P
Single Packaged Electric
Cooling Units
Instructions
11-02
NOTE: Read the entire instl_action manual before starting the installation
This symbol --> indicates a change since the tast issue,
TABLE OF CONTENTS
SAFETY CONSIDERATIONS 2
Introdnction 2
RECEIVING AND INSTALLATION 2
Check Equipment 2
IDENTIFY UNIT 2
INSPECT SHIPMENT 2
Provide Lnit Support ................................................................................................. 3
ROOF (LRB ................................................................................................. 3
SLAB MOUNT ................................................................................................ 4
GROL ND MOUNT ............................................................................................... 5
Provide Clearances ................................................................................................. 5
Field Fabricate Ductwork ......................................................................................................................................................................................... 7
Rig and Place Unit ................................................................................................................................................................................................... 7
INSPECTION ...................................................................................................................................................................................................... 7
INSTALLATION ................................................................................................................................................................................................ 7
Connect Condensate Drain ....................................................................................................................................................................................... 7
Instal! Duct (onnections .......................................................................................................................................................................................... 7
CONFIGURING UNITS FOR DO_\,L\'FLOW (VERTI(AL) DIS(HARGE ................................................ 7
Install Electrical ( onnection .......................................................................................... 11
HIGH=VOLTAGE CONNECTIONS ....................................................................................
SPECIAL PROCEDURES FOR 208-V OPERATION .................................................................. 11
CONTROL VOLTAGE CONNECTIONS ............................................................................. 11
STANDARD CONNE(TION ......................................................................................... 11
TRANSFORMER PROTE( TION ..................................................................................... 12
PRE=START=[ P ..................................................................................................... 15
START-UP ........................................................................................................... 15
CHE(K FOR REFRIGERANT LEAKS .................................................................................. 15
STAR7 UP (OOLING SECTION AND MAKE ADJUSTMENTS ..................................................... 15
CHECKING (OOLING CONTROL OPERATION ................................................................... 16
CHECKING AND ADJUSTING REFRIGERANT CHARGE ........................................................ 16
INDOOR AIRFLOW AND AIRFLOW ADJUSTMENTS .............................................................. I6
Fm 208/230V ................................................................................................ 17
FOR 460-V GE MOTORS I8
(00LING SEQL EN(E OF OPERATION 20
MAINTENANCE 20
AIR FILTER 20
EVAPORATOR BLOWER AND MOTOR 22
(ONDENSER (OIL, EVAPORATOR COIL, AND (ONDENSATE DRAIN PAN 23
CONDENSER FAN 24
ELECTRICAL CONTROLS AND WIR]TNG 25
REFRIGERANT CIRCUIT 26
EVAPORATOR AIRFLOW 26
METERING DEVICE ACUTROL DEVICE 26
LIQUID LINE STRAINER 26
Troubleshooting 26
Start-Erp Checklist 26
Form: tM-PA1P-03 Cancels: tM-PA1P-02 Printed in U.S.A. Catalog No. 53PA-1P7

NOTE TO INSTALLER Bel:bre the installation, READ THESE INSTRU(TIONS (ARER LLY AND COMPLETELY. Also, make sure the
User's Manual and Replacement Guide are tei_ with the unit after installation.
SAFETY CONSIDERATIONS
[nstallation and servicing of air-conditioning equipment can be hazardous dz/e to system pressure and electrical components Only trained and
qualified personnel should install, repair, or service air_conditioning equipment
Untrained personnel can perform basic maintenance fkmctions of cleaning coils and filters All other operations should be performed by trained
service personnel When working on air-conditioning equipment, observe precautions in the literature, tags, and labels attached to the unit, and
other safety precautions that may apply
Follow al! safe V codes. Wear safety glasses and work gloves Use quenching cloth _:br unbrazing operations. Have fire extinguisher available for
all brazing operations Consuk a qualified installer or service agency ibr information or assistance The qualified installer or agency must use only
ihctory-authorized kits or accessories when modil_'ing this product.
C99062
Fig. l--Unit PAIP and PA2P
z_ WARNING: Before performing service or maintenance operations on system, turn off power to unit. Turn off
accessory heater power switch, if applicable. Emectrical shock can cause personal injury.
Recognize safety information. This is the safcty_alert symbolz_ x When you see this symbol in instructions or manuals, be alert to the potential
ibr personal irtiury.
Understand the signal words DANGER, WARNING, CAUTION, and NOTE. These words are used with the safcty_alert symbol. DANGER
identifies the most serious hazards which will result in severe personal injury or death. WARNfNG signifies a hazard which could result in personal
injury or death. CAUTION is used to identii)* unsafe practices which would result in minor personal injury or product and property damage. NOTE
is used to highlight suggestions which will result in enhanced installation, reliability, or operation.
These instructions cover minimum requirements and conibnn to existing national standards and safety codes. In some instances, these instl_actions
exceed certain local codes and ordinances, especially tl_ose that may not have kept up with changing residential construction practices. We require
these instructions as a minimum for a saf_ installation.
BNTRODUCTmON
The PA1P and PA2P units (see Fig. 1) are frilly self:containe& and designed _br outdoor installation. See Figs. 2 and 3 for unit dimensions. All
unit sizes have discharge openings ibr both horizontal and downflow configurations, and are _hcto_- shipped with all downflow dtlct openings
covered. Units may be installed either on a rooftop_ ground-level cement slab_ or directly on the ground if local codes permit (See Fig. 4 for roof
curb dimensions)
RECEIVING AND INSTALLATION
PROCEDURE 1--CHECK EQUIPMENT
A. BDENTmFY UNIT
The unit model nmnber and serial nmnher are stamped on the unit identification plate Check this inJ:bm_ation against shipping papers
B. BNSPECT SHBPNENT
Inspect _br shipping damage while trait is still on shipping pallet. Ifnnit appears to be damaged o1"is torn loose from its anchorage, have it examined
by transportation inspectors beibre removal. Forward claim papers directly to transportation company. Manul:hcturer is not responsible ibr any
damage incurred in transit. (hock all items against shipping list. Immediately notify the nearest Payne Air (onditioning office if any item is
missing. To prevent toss or damage, leave all parts in original packages until installation.
2

DIMENSIONS 14 {] ARE
860
[3 39]
70 6
12 i'81
N N(IIES
406 4
[1600)
_798 5
131 44]
i i
5_03
[22 451 !
_831 0
{32 72) _DRA[N OUTLET
LEFT SIDEVIEW ]_22°_°olo_SJs."P_cP
/EVAP01!AT01! COIL
I
I5481
402 0
[1583]
!
117 7
[4 63]
TOPVIEW [! 48_
\\\\• 1939
\[4! 00]
23,\i
[C _1] [
i\
-i n__
I
12263
[48 281
FRONT ViEW
REQUIRED CLEARANCETO COMBUSTIBLE MATL INCHES [mm]
TOP OF UNIT ................................................................................... 14.00 [355 6]
DUCT SIDE OF UNIT ......................................................................... 2.00 [508]
SIDE OPPOSITE DUCTS ................................................................ 14.00 [355 6]
BOTTOM OF UNiT ............................................................................. 0.50 [127]
ELECTRIC HEAT PANEL ................................................................. 36.00 [914 4]
NEC. REQUIRED CLEARANCES, INCHES [mm]
BETWEEN UNITS, POWER ENTRY SIDE .................................... 42.00 [10668]
UNIT AND UNGROUNDED SURFACES, POWER ENTRY SIDE 3600 [914 0]
UNIT AND BLOCK OR CONCRETE WALLS AND OTHER
GROUNDED SURFACES, POWER ENTRY SIDE ......................... 42,00 [10668]
/
249 6_550 5
[983]
RETJD
_'_249 6
[2! 677 [9 8_
REAR VIEW
44 5 [I )5] DIA I/0--_ _j_------_--- "
POWER ENTRY _\/
22 2 _0 88]C1_ HOLE-- _
#"'_j \\,,_x' I'lI I'
CONTROL ENTRY
L__ .... i " z
17, CJ
ip'/, -j
4 813 RIGHTSiDEViEW
50
[0 20]
REQUIRED CLEARANCEFOR OPERATIONAND SERVICING INCHES [mm]
EVAP COIL ACCESS SiDE ............................................................ 3600 [914.0]
POWER ENTRY SiDE .................................................................... 4200 [1066 8]
(EXCEPT FOR NEC REQUIREMENTS)
UNIT TOP ....................................................................................... 4800 [12192]
SIDE OPPOSITE DUCTS .............................................................. 3600 [914.0]
DUCT PANEL ................................................................................. 1200 [304 8] _
*MINIMUM DISTANCES: IF UNIT IS PLACED LESS THAN 304.8 [12 00] FROM
WALL SYSTEM, THEN SYSTEM PERFORMANCE MAYBE COMPROMISE
Note: Wire Grilles are a field installed option.
C99007
UNIT
PA1P018
PA1P024
PAIP030
PAIP036
PA1P042
PA2P024
PA2P030
PA2P036
PROCEDURE
ELECTRICAL CHARACTERISTICS
208/230-1-60
208/230-1o60
208/230-1-60,
208/230-1o60,
208/230-1-60,
208/230-1o60
208/230-1o60,
208/230o 1o60,
208/230-3-60
208/230-3-60, 460-3-60
208/230-3-60, 460°3-60
UNIT W%IGHT
208/230-3-60
208,230-3°60, 460-3-60
Fig. 2-- PAtP018-042 and PA2P024-036
lb. kg
254 jli52
260 ili7.9
258 [ii7.0
268 i21.6
294 ii33.3
270 i22.5
29i 132.0
299 i35.6
UNIT HEIGHT
IN. (MM)
_A _
35.02 (889.5)
35.02 (889,5)
35.02 (889.5)
37.02 (940.3)
35.02 (889.5)
37.02 (940.3)
39.02 (991.1)
35,02 (889,5)
CENTER OF GRAVITY
IN. (MM)
X Y
20.0 (508,0) 13.0 (330.2)
19.0 (482,6) 13.0 (330.2)
19.0 (482,6) 14.0 (355.6)
20.0 (508.0) 14.0 (355.6)
i9.0 (482.6) i4.0 (355.6)
18.5 (469.9) 14.5 (368.3)
19.5 (495.3) 15.5 (393.7)
19.5 (495.3) 15.25 (387.4)
Unit Dimensions
2--PROVIDE UNIT SUPPORT
Z
i5.0 (381.0)
i5.0 (381.0)
15.0 (381.0)
i3.0 (330.2)
i3.0 (330.2)
i6.0 (40&4)
i7.6 (447.0)
i6.5 (419.i)
A. ROOF CURB
Install accessory roof curb in accordance with instructions shipped with curb (See Fig 4) Install insulation, cant strips, roofing, and flashing
Ductwork must be attached to curh,
IMPORTANT: The gasketiag of the unit to the roof curb is critical for a watertight seal, Install gasketing material supplied with the roof curb,
Improperly applied gasketing also can result in air leaks and poor unit performance,
3

r 2 ] RI WIN
1!6_00_
COMPREGSORIBLOWER,ELECTRIC IiEAT x
& ELECTRIC ACCESS \
_0006
[42 94]
?i
J
I
J
TOP VIEW
I}93 9
[47003
_2263
•4\\ [48 28]
[44 22} \\ \ DIIAII_ OUIL[I
190 [0¸?5) N PT
LEFT SIDE VIEW _2_0_08._ FRONT VIEW
DIMENSONS R {] ARE N NCHES
C01L
4000
880
[3 481
REAR VIEW
POWR ENTRY
202 [088] OIA HOLE
CON [ROL ENIR¥
I [ 21J
326 I _........ "%
[12 84]
[3 43]
[481 [0 20
RIGHT SIDE VIEW
REQUIRED CLEARANCE TO COMBUSTIBLE MATL INCHES [mm]
TOP OF UNIT ................................................................................... 1400 [355 6]
DUCT SIDE OF UNIT ......................................................................... 200 [50.8]
SIDE OPPOSITE DUCTS ................................................................ 1400 [355 6]
BOTTOM OF UNIT ............................................................................. 050 [12.7]
ELECTRIC HEAT PANEL ................................................................. 3600 [914 4]
NEC: REQUIRED CLEARANCES, INCHES [mini
BETWEEN UNITS, POWER ENTRY SIDE .................................... 42.00 [1066 8]
UNIT AND UNGROUNDED SURFACES, POWER ENTRY SIDE .36.00 [914.0]
UNIT AND BLOCK OR CONCRETE WALLS AND OTHER
GROUNDED SURFACES, POWER ENTRY SIDE ......................... 42.00 [1066 8]
UNIT
PAIP048
PA1P060
PA2P042
PA2P048
PA2P060
REQUIRED CLEARANCE FOR OPERATION AND SERVICING INCHES [ram]
EVAR COIL ACCESS SIDE ............................................................ 36.00 [914.0]
POWER ENTRY SIDE .................................................................... 36.00 [914.0]
(EXCEPT FOR NEC REQUIREMENTS)
UNIT TOP ....................................................................................... 48.00 [1219 2]
SIDE OPPOSITE DUCTS .............................................................. 36.00 [914.0]
DUCT PANEL ................................................................................. 12.00 [304.8] *
*MINIMUM DISTANCES: IF UNIT IS PLACED LESS THAN 3048 [12 00] FROM
WALL SYSTEM, THEN SYSTEM PERFORMANCE MAYBE COMPROMISE
Note: Wire Grilles are a field installed option.
C99006
ELECTRICAL CHARACTERISTICS
208/230-io60, 208/230o3o60, 460-3°60
208/230olo60, 208/230o3o60, 460°3°60
208/230-1o60, 208/230o3o60, 460-3°60
208/230olo60, 208/230o3o60, 460°3-60
208/230-1o60, 208/230o3o60, 460-3-60
UNIT WEIGHT
lb, k8
324 145
389 176
321 i46
326 148
399 i81
UNIT HEIGHT
IN. (MM)
_A _
38.98 (9902)
38.98 (990.2)
38.98 (990.2)
38.98 (990.2)
42.98 (!091.i)
CENTER OF GRAVITY
IN. (MM)
X Y
20.0 (508.0) 17.0 (432.0)
19.0 (482.6) 16.0 (406.0)
20.5 (520.7) 16.75 (425.5)
19.5 (495.3) 17.6 (447.6)
20.5 (520.7) i6.2 (412.8)
Z
17.0 (432.0)
17.0 (432.0)
16.6 (421.6)
18.0 (457.2)
17.6 (447.0)
Fig. 3-- PAl P048=060 and PA2P042-060 Unit Dimensions
CuIb should be level to within 1/4 in (See Fig. 5A) ]"his is necessary for unit drain to fhnction properly Refer to accessory roof curb installation
instructions f_}r additional infbm_ation as required
g. SLAB MOUNT
Place d_e unit on a solid, level concrete pad that is a minimum of 4 in d_ick with 2 in above grade (See Fig. 5B) The slab should extend
approximately 2in beyond the casing on all 4 sides of the unit Do not secure the unit to the slab except when required by local codes.
4

Roof Curb for Small Cabinet
Note A: When unit mounting screw is used,
retah_er bracket must also be used.
Roof Curb for Large Cabinet
Note A: When uNt mounting screw is used,
retainer bracket must also be used.
ReHm opeHrl0
{B X C)
deck pan ong
/
,ul,oo_t
\R/A
\\\\\
"--_-Gasket around_
duct
S/A
/2
insulated Gasket around
deck pan outer edge ,.,
\,
C00076
UNIT SIZE
PAIP018-042
iPA1P048-060
PA2P024-036
PA2P042-060
NOTES:
1 Dimensions ]n ( ) are ]n millimeters.
2 Roof curb is made of 16-gage steel
ODS CATALOG NUMBER
CPRFCURB00dA00
CPRFCURB007A00
CPRFCURB008A00
CPRFCURB009A00
3 Table lists only the dimensions per part number that have changed
4 Insulated panels: 1-in thick fiberglass 1 Ib density.
A
IN. (MM)
8 (203)
14 (356)
8 (203)
14 (356)
B
]-N. (MM)
11(279)
11(279)
16-3/16 (411)
16-3/i6 (411)
c
IN. (MM)
16-1,'2 (419)
16-1/2 (4!9)
17-3/8 (441)
17-3/8 (441)
D
_N. (MM)
28-3/4 (730)
28-3/4 (730)
40-1/4 (1022)
40-1/4 (!022)
Fig. 4A-- Roof Curb Dimensions
C. GROUND MOUNT
The unit may be installed either ou a slab or placed directly on the ground if local codes permit, Place the unit on level ground prepared with gravel
%r condensate discharge
PROCEDURE 3--PROMIDE CLEARANCES
_he required minimum service clearauces are shown in Fig. 2 & 3. Adequate ventilation and outdoor air must be provided. The outdoor _m drav,s
air through the outdoor coil and discharges it through the top Jim grille. Be sure that the fan discharge does not recirculate to the outdoor coil. Do
not tocate the unit in either a come* or under an overhead obstruction. The minimum clearance under a partial ore*hang (such as a normal house
overhang) is 36 in above the unit top. The maximum horizontal extension of a partial overhang must not exceed 48 in For extended overhangs,
provide a minimum clearance of 48 in.
mMPORTANT: Do not restrict outdoor airflow, An air restriction at either the outdoor-air inlet or the fan discharge may be detrimental to
compressor life,
5

1
Y
CORNER # PA1P (In Pounds) PA2P (In Pounds)
018 024 030 036 042 048 060 024 030 036 042 048 060
1 58 60 59 62 76 69 84 76 84 85 71 78 85
247 50 48 50 50 45 54 49 60 60 55 56 66
3 55 56 56 58 71 88 106 57 6i 64 85 80 108
4 94 94 95 98 97 122 145 88 86 90 110 112 140
TOTAL WEIGHT 254 260 258 268 294 324 389 270 29i 299 32i 326 399
Fig. 4B--PAIP and PA2P Unit Corner Weights
C00071
.C MAXIMUM ALLOWABLE
DIFFERENCE (in.)
A-B B-C A-C
1/4 1/4 1/4
Fig. 5A--Umt Leveling Tolerances
C99065
2 F_
±
m
EVAP COIL COND COIL
C99096
Fig, 5B--Slab Mounting Detail
Do not place the unit where water, ice, or snow t?om an ox'erhang or roof will damage or flood the unit Do not install the unit on carpeting or
other combustible materials Slab=mounted units should be at least 4 in above the highest expected water and runoff te_els Do not use unit if it
has been under water
6

PROCEDURE 4--F{ELD FABRBCATE DUCTWORK
Secure all ducts to roof curb and building structure on vertical discharge units, Do vot co_v¢ct d_lcmork to _mit. For horizontal applications, unit
is provided with flanges on the horizontal openings All dnctwork should be secured to the flanges. Insulate and weatherproof all external ductwork,
joints, and roof openings with counter flashing and mastic in accordance with applicable codes.
Ducts passing through an unconditioned space must be insulated and covered with a vapor barrier If a plenum return is used on a vertical unit,
the return should be ducted through the roof"deck to comply with applicable fire codes A mininmm clearance is not required around ductwork_
Cabinet retm'n=air static shall not exceed -.25 in wg
PROCEDURE 5--RIG AND PLACE UNIT
Rigging and handling of this equipment can be hazardous for many reasons due to the installation location (roo_s, elevated structures, etc.)
Only trained, qualified crane operators and grotmd support staff should handle and install this equipment.
When working with this equipment, observe precautions in the literature, on tags, stickers, and labels attached to the equipment, and any other
safkty precautions that might apply.
Follow all applicable safety codes. Wear safety shoes and work gloves.
/_ WARNING: Never stand beneath rigged units or lift over people.
/_ WARNING: Never exceed 200 Ibs. per bracket tilting force.
!_x WARNING: Accessory lifting kit is only to be used with Small Packaged units which have a composite base pan with
molded rigging holds.
A, [NSPECTBON
Prior to initial use. and at monthly intervals, all rigging brackets and straps should be visually inspected for any damage, evidence of wear,
snucmral deibrmation, or cracks. Particular attention should be paid to excessive wear at hoist hooking points and load support areas. Brackets
or straps showing any kind of wear in these areas must not be used and should be discarded.
g. INSTALLATION
1. Position the lifting bracket assembly around the base of the unit. Leave the top shipping skid on the unit to act as a spreader bar. Be sure
the strap does not twist.
2Place each of the ibur (4) metal lifting brackets into the rigging holds in the composite pan
3_ Tighten the ratchet strap unit tight. Lit'ring brackets should be secure in the rigging holds.
4 Attach the clevis or hook of sufficient strength to hole in the lifting bracket (See Fig 6).
5 Attach safety stlaps directly to the field supplied rigging straps or clevis clip Do not attach the safety straps to the lifting brackets_
6 Use the top of the unit as a spreader bar to prevent the rigging straps from damaging the unit. If the wood top is not available, use a spreader
bar of sufficient length to not damage the unit
z_ WARNING: Lifting point should be directly over the center of gravity for the unit,
PROCEDURE g--CONNECT CONDENSATE DRAIN
NOTE: When installing condensate drain connection be sure to comply with local codes and restrictions.
Models PA 1P and PA2P dispose of condensate water through a 3/4 in. NPT fitting which exits through the base on the evaporator coil access side
See Fig. 2& 3 for location.
Condensate water can be drained directly onto the roof in rooftop installations (where permitted) or onto a gravel apron in ground=level
installations. Install a field=supplied condensate trap at end of condensate connection to ensure proper &ainage Make sure that the outlet of the
trap is at least 1 in. lower than the drainpan condensate connection to prevent the pan from overflowing (See Fig 7) When using a gravel apron,
make sure it slopes away fi'om the unit.
( onnect a &ain tube using a minin_un_ of 3/4 -in PVC or 3/4 -in. copper pipe (all field-supplied) at the outlet end of the 2-in. trap. Do not undersize
the tube Pitch the &ain robe downward at a slope of at least 1-in for every 10 ft of horizontal 17.m Be sure to check the drain robe for leaks.
Prime t_ap at the beginning of the cooling season start-up.
PROCEDURE 7--INSTALL DUCT CONNECTIONS
]_he unit has duct flanges on the supply- and return=air openings on the side and bottom of the unit For downshot applications the ductwork can
be connected to the roof curb. See Fig. 2 & 3 ibr connection sizes and locations
IMPORTANT: Use flexible connectors between dtlctwork and unit to prevent transmission of vibration. Use suitable gaskets to ensure
weathertight and airtight seal. When electric heat is installed, use fire proof canvas (or similar heat resistant material) connector between ductwork
and unit discharge connection. If flexible duct is used, insert a sheet metal sleeve inside duct. Heat resistant duct connector (or sheet metal sleeve)
n-met extend 24°in. tiom the unit discharge connection flange into the ductwork.
A. CONFIGURING UNITS FOR DOWNFLOW (VERTICAL} DISCHARGE
A WARNING: Before performing service or maintenance operations on the system, turn off main power to unit and
install lockout tag or electrical shock could result.
1 Open all electrical disconnects and install lockout tag before starting any smwice work.
2Remove remm duct cover located on duct panel by breaking four (4) connecting tabs with screw&iver and a hammer. (Fig. 8 & 9)
7

>
DETAIL A
SCALE 0250
lIGHTEN STRAPPING SECURBk:Y
WITH TENSION SUCKLE
/
SEE DETAIL A
SIZE !
UNIT PAIP
018 276
024 282
030 280
036 290
042 316
048 346
060 411
UNIT PA2P
024 292
030 313
036 321
042 343
048 348
060 42i
INSTALL SAFETY STRAPS TO
RIGGING CkSVIS AT 4 RIGGING BRACKETS
PLACE RIGGING BRACKET ASSEMBLY IN 4
RIGGING HOLES AND INSTALL TIE DOWN STRAP
AROUND PERIMETER OF UNIT AND THROUGH
SPACE IN BRACKET ASSEMBLY
125.2 20 508.0 13 330.2
127.9 i9 482.6 i3 330.2
127.0 19 482.6 14 355.6
131.5 20 508.0 14 355.6
143.3 i9 482.6 i4 355.6
156.9 20 508 17 431.8
186.4 19 482.6 16 406.4
132.5 i8.5 469.9
142.5 19.5 495.3
145.6 19.5 495.3
155.6 20.5 520.7
157.9 i9.5 495.3
191.0 20.5 520.7
Fig. 6--Suggested Rigging
i4.50 368.3
15.50 393.7
15.25 387.4
16.75 425.5
i7.62 447.6
16.25 412.8
C99066
3. To remove supply duct cover, break front and right side connecting tabs with a screw&iver and a hammer. Push louver down to break rear
and te_ side tabs (Fig, 8 & 9)
4. If unit ductwork is to be attached to vertical opening _:langes on the unit composite base (iackstand applications only), do so at this time
Collect ALL screws that were removed. Do not leave screws on rooftop as permanent damage to the roof may occur.
5. [t is recommended that the unit base insulation around the perimeter of the vertical retnm-air opening be secured to the unit base with
aluminum tape. Applicable local codes may require aluminum tape to prevent exposed fiberglass.
6. (over both horizontal duct openings with the duct covers from the accessory- duct cover kit. Ensure opening is air-and watertight.
7. Aker completing unit conversion, perform all safety checks and power up unit.
NOTE: The design and installation of the duct system must be in accordance with the standards of the NFPA _br installation of nonresidence-type
air conditioning and ventilating systems, NFPA 90A or residence-type, NFPA 90B; and/or local codes and ordinances.
Adhere to d_e following criteria when selecting, sizing, and installing the duct system:
8. Units are shipped _br side shot installation.
9. Select and size ductwork, supply-air registers, and return=air grilles according to American Society" of Heating, Refiigeration and Air
(onditioning Engineers (ASHRAE) recommendations,
10. Use flexible transition between rigid ductwork and unit to prevent transmission of vibration, The transition may be screwed or bolted to
duct flanges "Use suitable gaskets to ensu*e weathertight and airtight seal,
11. All units must have field-supplied filters or accesso W filter rack installed in the return-air side of the unit Recommended sizes for filters
are shown in Tables 1 and 2.
8

UNiT SIZE
NOMINAL CAPACITY (ton)
OPERATING WEIGHT (lb.)
COMPRESSOR
REFRIGERANT (R=22)
Quantity (lb.)
REFRIGERANT METERING DEVICE
Orifice ID {in.)
CONDENSER COIL
Rows...Fins/in.
Face Area (sq, ft.)
CONDENSER FAN
NominN Cfm
Diameter
Motor Np (Rpm)
EVAPORATOR COiL
Rows...Fins/in.
Face Area (sq, ft,)
EVAPORATOR BLOWER
Nominal Airflow (Cfm)
Size (in.)
Motor Hp (RPN)
RETURN-AIR FILTERS (in.)*
Throwaway
Required filter sizes shown arebased onthe larc
Table 1--Physical Data--Unit PAl P
018 024 042 048 0$0
1-1/2 2 3-1/2 4 5
254 260 294 324 389
Scroll Reciprocating
2.6 3.5 6.4 5.1 7.4
.034 .034 .034 .032 .030
1...17 1...17 1...17 1...17 2...17
6.1 9.1 9.1 12.3 12.3
2000 2400 3000 3600 3600
22 22 22 22 22
1/8 (825) 1/8 (825) 1/4 (I100) 1/4 (I100) 1/4 (1100)
2._15 2...15 4...15 3._15 4._15
3.1 3.1 3.06 4.7 4.7
600 800 1400 1600 2000
10x10 10x10 11x10 11x10 11x10
1/4 (825) 1/4 (1075) 3/4 (I075) 3/4 (I075) 1.0 (1100)
20x20 20x20 20x24 24x30 24x30
erof theARI (Air Conditioningand Refrigeration Institute)ratedcooling airflow or theheating airflow velocity of 300ft./min
for throwaway type or 450 ft/min for high-capacity type Air filter pressure drop for non-standard filters must not exceed 008 in. wg.
030 036
2-1/2 3
258 268
Reciprocating
3.65 4.4
Accurater
.034 .032
1._17 1._17
9.1 10.9
2400 3000
22 18
1/8 (825) 1/4 (I100)
2...15 3...15
3.7 3.06
1000 1200
10x10 11x10
1/4 (1075) 1/2 (1075)
20x20 20x24
UNIT SIZE
NOMINAL CAPACITY (ton)
OPERATING WEIGHT (lb.)
COMPRESSOR
REFRIGERANT (R°22)
Quantity (lb.)
REFRIGERANT METERING DEWCB
Orifice ID (in.)
CONDENSER COIL
Rows...Finsiin.
Face Area (sq. ft.)
CONDENSER FAN
Nominal Cfm
Diameter (in.)
Motor Np (Rpm)
EVAPORATOR COIL
Rows...Finslin.
Face Area (sq. ft.)
EVAPORATOR BLOWER
Nominal Airflow (Cfm)
Size (in.)
Motor Np (RPM)
RETURN-AIR FILTERS (in.)*
Throwaway
Table 2--Physical Data--Unit PA2P
024 636 636 042 048 666
2 2-1/2 3 3-1/2 4 5
270 291 299 321 326 399
Scroll
3.7 4.4 5.2 7.6 8.3 8.1
Accurater
.034 .030 .032 .034 .034 .032
1._17 1...17 2._17 2...17 2...17 2._17
10.8 12.7 9.1 9.1 12.3 16.4
2350 2350 2350 3300 3300 3300
22 22 22 22 22 22
1/8 (825) 1/8 (825) 1/8 (825) 1/4 (1100) 1/4 (I100) 1/4 (1100)
3...15 3._15 3._15 3...15 4._15 4._15
3.1 3.1 3.7 4.7 4.7 4.7
800 1000 1200 1400 1600 1750
10x10 10x10 1lx10 1lx10 11x10 11x10
1/4 1/4 1/2 3/4 3/4 1.0 (1040)
1/4 (1075) 1/4 (1075) 1/2 (1075) 3/4 (1075) 3/4 (1075)
20x20 20x20 20x24 20x30 24x30 24x30
Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 300 ft./min
for throwaway type or 450 ft/min for high-capacity type Air filter pressure drop for non-standard filters must not exceed 008 in. wg.
1" (25mm) MIN. TRAP
OBTLET*,
2" (50ram) MIN.
Fig. 7--Condensate Trap
C99013
12 Size all ductwork %r maximum required airflow (either heating or cooling) %r unit being installed, Avoid abropt duct size increases or
decreases or performance may be affected
9

[
m018 024 048 060 700 800 1600 2000
Table 3--Minimum Airflow for Safe Electric Heater
Operation (Cfm)
SBZE
030 036 042
1000 1200 1400
13. Adeqtlately insulate and weatherproof all ductwork located outdoors. Insulate ducts passing through unconditioned space, and use vapor
barrier in accordance with latest issue of Sheet Metal and Air (onditioning (ontractors National Association (SMA(NA) and Air
Conditioning (onhactors of America (A(CA) minimum installation standards for heating and air conditioning systems. Secure all ducts
to building stn_ctt_re.
14. Flash, weatherproof, and vibration-isolate all openings in building stlucmre in accordance with local codes and good building practices.
_ --,2
-/
/
//
SUPPLY RETURN
DUCT DUCT
OPENING OPENING
Fig. 8--Supply and Return Duct Opening
C99011
DUCT COVERS REMOVED
Fig. 9--Verticam Duct Dover Removed
C99012
i0

PROCEDURE8--[NSTALLELECTRICALCONNECTION
z_ WARNING: The unit cabinet mast have an uninterrupted, unbroken electrical ground to minimize the possibility of
persona[ injury if an electrical faamt should occur. This ground may consist of an emectrica[ wire connected to the unit ground
lag in the contro[ compartment, or conduit approved for electrica[ ground when instaImed in accordance with NEC (National
Electrical Code) ANSJ/NFPA (latest edition) and [oca[ emectrica[ codes, in Canada, follow Canadian Electrical Code CSA
(Canadian Standards Association) 022.i and local electrical codes. Failure to adhere to this warning could result in personal
injury or death.
z_ CAUTION: Failure to follow these precautions could resa[t in damage to the unit being installed:
1. Make aH electrical connections in accordance with NEC ANS_/NFPA ([atest edition) and Ioca[ eiectrica[ codes governing
such wiring, h Canada, aH emectrica[ connections must be in accordance with CSA standard D22.1 Canadian Electrical
Code Part I and applicable Boca[ codes. Refer to unit wiring diagram.
2. Use only copper conductor for connections between field-supplied electrica! disconnect switch and unit. DO NOT USE ALUMINUM
WIRE.
3. Be sure that highovoltage power to unit is within operating voltage range indicated on unit rating plate.
4. Do not damage internal components when drilling through any panel to mount electrical hardware, conduit, etc. On 3-phase units,
ensure phases are balanced within 2 percent. Consult local power company for correction of improper voltage and/or phase
imbalance.
A. HGNoVOLTAGE CONNECTIONS
The unit must have a separate electrical service with a field-st/pplied, waterproo£ disconnect switch mounted at, or within sight fi'om_ the trait.
Refer [o the unit rating plate for n_axinmm rhea/circuit breaker size and n_ininlum circuit amps (ampacity) _br wire sizing. See Tables 4 and 5 _br
electlical data.
The field-supplied disconnect switch box may be mounted on the unit over the high-voltage inlet hole when the standard power and low-voltage
entw- points are used. See Fig. 2& 3 for acceptable location.
See unit wiring label and Fig. 10 for re_rence when making high voltage connections. Proceed as follows to complete the high-voltage connections
to the unit.
Single phase units:
1. Ron the high-voltage (L1, L2) and ground leads into the control box.
2. Connect ground lead to chassis ground connection.
3. Connect L1 to pressure lug connection 11 of the compressor contactor.
4. Connect L2 to pressure lug connection 23 of the compressor contactor.
Three phase units:
1. Run the high-vohage (L1, L2, L3) and ground leads into the contlol box.
2. Connect ground lead to chassis ground connection.
3. Locate the black and yellow wires connected to the lines side of tl-_econtactor_
4. Connect field L! to black wire on connection 11 of the compressor contactor.
5. Connec_ field wire L2 to yellow wire on connection 13 of the compressor contactor.
6. Connect field wire L3 to Blue wire fi'om compressor_
B. SPECIAL PROCEDURES FOR 208-V OPERATION
Z_ WARNBNG: Make sure that the power supply to the unit is switched OFF and lockout tag installed before making any
wiring changes. Electrical shock can cause serious injury or death.
C. CONTROL VOLTAGE CONNECTmONS
NOTE: Do not use any type of power-stealing thermostat Unit control problems may resulL
Use no. 18 American Wire Gage (AWG) color-coded, insulated (35 C minimun_) wires to make the conhoi voltage connections between the
thermostat and the unit. If the themaostat is located more than 100 R. ti'om the unit (as measured along the conhol voltage wires), use no. 16 AWG
color-coded, insulated (35 C n_ininmm) wires.
D. STANDARD CONNECTION
Remove knockout hole located in the electric heat panel adjacent to the control access panel See Fig. 2 & 3_ Remove the rubber grommet from
d-_e installer's packet (included wid-_ unit) and install grommet in the knockout opening. Provide a drip loop before running wire through panel
Run the tow-voltage leads t'rom the d_ermostat, through the inlet hole, and into unit tow-voltage splice box_
Locate five 18-gage wires leaving conkol box. These tow-voltage connection leads can be identified by the colors red, green, yellow, brown, and
white (See Fig. 10). Ensure the leads are long enough to be routed into the low-voltage splice box (located below right side of control box). Stripped
yellow wire is located in connection box. Route leads through hole in bottom of control box and make tow-voltage connections (See Fig. 10)_
Secure all cut wires, so tl-_atthey do not interfere with operation of uniL
11

UNIT PAIP
SIZE
018
024
O3O
036
O42
O48
060
V-PH-HZ
208/230-1-60
208/230-1-60
208/230-1-60
208/230-3-60
208/230-1-60
208/230-3-60
460-3-60
208/230-1-60
208/230-3-60
460-3-60
208/230-1-60
208/230-3-60
460-3-60
208/230-1-60
208/230-3-60
VOLTAGE
RANGE
Min Max
187 254
TaMe 4--Electrical Data--PAIP
COMPRESSOR OFM {FM ELECTRIC HEAT
RLA LRA FLA FLA Nominal Kw* FLA
187 254
187 254
187 254
187 254
187 254
414 508
187 254
187 254
414 508
187 254
187 254
414 508
187 254
187 254
460-3-60 414 508
(SeeEegend fo{Iow{ng ElectdcN Data charts)
4-
38/5.0
9 45 0.80 18 54/7.2
75/100
-/-
38/5.0
12.8 61 08 2 54/7.2
75/100
-/-
38/5.0
14.4 73 08 2 54/7.2
75/100
113/150
-/-
38/5.0
83 68 08 2 75/100
113/150
-/-
38/5.0
15.1 81 14 28 54/7.2
75/100
113/150
-/-
38/5.0
10.9 78 14 28 75/100
113/150
5
58 40 08 14 10
15
38/5.0
54/7.2
18.6 105 14 4 75/100
113/150
150/200
4-
38/5.0
10.7 85 14 4 75/100
113/150
150/199
5
53 42 08 2 10
15
20
38/5.0
54/7.2
25.3 131 21 5 75/100
113/150
15 0/20 0
4-
38/5.0
14.6 108 21 5 75/100
113/150
15 0/19 9
5
73 48 11 23 10
15
20
38/5.0
54/7.2
28.9 147 21 68 75/100
113/150
150/200
4-
38/5.0
18.6 125 21 68 75/100
113/150
15 0/19 9
5
10
15
20
4-
181/208
260/300
361/417
181/208
2/30
361/417
4-
181/208
260/300
361/417
542/625
4-
104/12 0
208/241
313/361
4-
181/208
260/300
361/417
542/625
4-
104/120
208/241
313/361
6
12
18
4-
181/208
260/300
361/41 7
542/625
722/833
104/120
208/241
31 3/361
41 6/480
6
12
18
241
4-
181/208
260/300
361/41 7
542/625
722/833
4-
104/120
208/241
313/361
41 6/480
6
12
18
241
4-
181/208
260/300
361/41 7
542/625
722/833
4-
104/120
208/241
31 3/361
41 6/480
6
12
18
24
MCA
POWER SUPPLY
Max Fuse orCkt Bkr MOCP
20/20
25/30
35/40
50/60
25/25
305/30
35/40
50/60
25/25
25/30
35/40
50/60
-- 80/90
20/20
20/20
30/35
45/50
30/30
30/30
40/45
50/60 80/90
25/25
25/25
30/35
45/50
15
15
20
25
35/35
35/35
40/45
60/60
-- 90/100
-- 100/110
25/25
25/25
35/40
45/60
-- 60/70
15
15
20
30
35
40/40
40/40
40/45
60/60
-- 90/100
-- 100/125
30/30
30/30
35/40
50/60
-- 60/70
15
15
20
30
35
60/60
60/60
45/50
-- 60/70
-- 90/100
-- 100/125
40/40
40/40
40/40
50/60
-- 70/70
20
20
20
30
35
85 66.5 11 32
13.9/139
24.8/283
34.7/398
47.4/543
18.8/188
25.1/285
35/40
47.6/546
20.8/208
25.1/285
35/40
47.6/546
70.2/806
13.2/132
15.5/175
28.6/326
41.8/476
23.1/231
26.1/295
36.0/41 0
48.6/556
71.2/81 6
17.8/178
16.5/185
29.6/336
42.6/486
9.5
9.5
168
243
28.7/287
28.7/31 0
37.5/425
50.1/571
72.7/831
95.3/1092
18.8/188
31.1/351
44.1/501
57.0/650
9.4
100
175
251
326
38.7/387
38.7/387
38.7/438
51.4/583
73.9/844
96.5/1104
25.4/254
25.4/254
32.3/363
45.3/51 4
58.2/662
125
125
179
254
329
45.0/450
45.0/450
41.0/460
53.8/606
76.2/866
98.8/1127
32.2/322
32.2/322
34.6/386
47.6/536
60.5/685
149
149
190
266
34 1
E. TRANSFORMER PROTECTION
The tra_.@)m_Teris of the energyotimiting type, It is set to withstand a 30-second overload or shorted secondao' condition
12

UNIT PA2P
SiZE
024
O30
036
O42
048
O6O
V_PH_HZ
208/230-1-60
208/230-1-60
208/230-3-60
208/230-1-60
208/230-3-60
460-3-60
208/230-1-60
208/230-3-60
460-3-60
208/230-1-60
208/230-3-60
460-3-60
208/230-1-60
208/230-3-60
VOLTAGE
RANGE
MM Max
187 253
Table 5--Emectrical Data--PA2P
COMPRESSOR OFM IFM ELECTRIC HEAT
RLA LRA FLA FLA Nominal Kw FLA
187 253
187 253
187 253
187 253
414 506
187 253
187 253
414 506
187 253
187 253
414 506
187 253
187 253
460-3-60 414 506
(See legend foHowing Electrical Data charts)
109 54.0 09 2.0
135 73.0 08 2.1
90 63.0 08 2.1
167 97.0 08 3.6
112 75.0 08 3.6
54 37.5 09 1.9
-/- 4-
3 8/5.0 181/208
54/7.2 260/300
7.5/10.0 361/417
-/- 4-
38/5.0 181/208
54/7.2 260/300
7.5/10.0 361/417
113/150 542/625
-/- 4-
38/5.0 104/120
7.5/10.0 208/241
113/150 313/361
-/- 4-
38/5.0 181/208
54/7.2 260/300
7.5/10.0 361/417
113/150 542/625
-/- 4-
38/5.0 104/120
7.5/10.0 208/241
113/150 313/361
5 6
10 12
15 18
-/- 4-
38/5.0 181/208
54/7.2 260/300
7.5/10.0 361/417
113/150 542/625
150/200 722/833
-/- 4-
38/5.0 104/120
179 1040 15 4.1
MCA
POWER SUPPLY
Max Fuse orCkt Bkr MOCP
20/20
30/30
35/40
50/60
25/25
30/30
40/50
50/60
-- 80/90
20/20
20/20
30/35
-- 80/90
30/30
30/35
40/45
50/60
-- 80/90
25/25
25/25
35/35
45/50
15
15
20
25
35/35
35/35
40/45
60/60
-- 90/100
-- 100/110
25/25
25/25
35/40
45/60
-- 60/70
15
15
20
30
35
45/45
45/45
45/45
60/60
-- 90/90
-- 100/110
30/30
30/30
35/40
45/60
-- 60/70
15
15
20
25
35
60/60
60/60
45/50
60/60
-- 90/100
-- 100/125
35/35
35/35
35/40
50/60
-- 60/70
20
20
20
30
35
124 88.0 15 4.1 7.5/10.0 208/241
113/150 313/361
150/200 417/481
4-
5 60
61 44.0 09 1.9 10 120
15 180
20 241
-/- 4-
38/5.0 181/208
54/7.2 260/300
234 1260 16 4.1 7.5/10.0 361/417
113/150 542/625
150/200 722/833
-/- 4-
38/5.0 104/120
130 93.0 16 4.1 7.5/10.0 208/241
113/150 313/361
150/200 417/481
4-
5 60
64 46.5 09 2.0 10 120
15 180
20 241
-/- 4-
38/5.0 181/208
54/7.2 260/300
288 1690 16 6.2 7.5/10.0 361/417
113/150 542/625
150/200 722/833
-/- 4-
38/5.0 104/120
173 1230 16 6.2 7.5/10.0 208/241
113/150 313/361
150/200 417/481
4-
5 60
90 62.0 09 3.2 10 120
15 180
20 241
165/165
251/285
350/400
476/546
198/198
252/287
351/401
478/547
722/826
142/142
157/177
287/327
703/808
253/253
271/305
370/420
496/566
722/826
184/184
184/195
306/346
436/496
96
99
174
249
281/281
281/31 2
376/426
503/572
728/833
954/109.3
21 2/21 2
21 2/21 2
31 2/352
442/502
572/653
105
105
175
251
326
349/349
349/349
376/426
503/572
728/833
954/109.3
21 9/21 9
21 9/21 9
31 2/352
442/502
572/653
108
108
174
249
324
438/438
438/438
402/453
529/598
754/859
980/111.9
294/294
294/294
338/378
468/529
599/679
154
154
190
266
341
13

LEGEND
FLA -- FullLoadAmps
LRA -- LockedRotorAmps
MCA-- MinimumCircuitAmps
MOCP-- MaximumOvercurrentProtection
RLA -- RatedLoadAmps
CKTBKR-- CircuitBreaker
US
NOTES:
1. tn compliance with NEC (National Electrical Code) requirements
for multimotor and combination load equipment (refer to NEC
Articles 430 and 440), the overcurrent protective device for the
unit shall be Power Supply fuse. Canadian units may be
fuse or circuit breaker.
2. Minimum wire size is based on 60 C copper wire. tf other than
60 C wire is used, or if length exceeds wire length in table,
determine size from NEC.
3. Unbalanced 3-Phase Supply 'Voltage
Never operate a motor where a phase imbalance in supply volt-
age is greater than 2%. Use the following formula to determine
the percentage of voltage imbalance.
% Vottage imbalance
= 100 x max voltage deviation from average voltage
average voltage
EXAMPLE: Supply voltage is 460-3-60.
A B C AB = 452 v
BC = 464 v
AC = 455 v
Average Voltage = 452 + 464 + 455
3
1371
3
= 457
Determine maximum deviation from average 'voltage.
(AB) 457 452=5v
(BC) 464 457=7v
(AC) 457 455=2v
Maximum deviation is 7 v.
Determine percent of voltage imbalance.
7
% Voltage Imbalance = 100 x --
457
: 1.53%
This amount of phase imbalance is satisfactory as it is below the
maximum allowable 2%.
IMPORTANT: tf the supply voltage phase imbalance is
more than 2%, contact your local electric utility company
immediately.
C99024
HIGHVOLTAGE 1
POWER LEADS <_o- -
(SEE UNIT WIRING|
LABEL) L_- -
CONTROLBOX
LOW-VOLTAGE _ ......
POWER LEADS-
(SEE UNIT
WIRING LABEL)
SPLICE BOX
o-i
J
_[:_,' • - POWER
°[[suPPLY
FIELD-SUPPLIED
FUSED DISCONNECT
YF--LL_L_ Q
RED_R±_.
BRN(C_)_
THERMOSTAT
(TYPICAL)
LEGEND
Field ControFVottage Wiring
Field High-Voltage Wiring
NOTE: Use blue wire for 3-phase units only.
Fig, 10--High- and Control-Voltage Connections
C99010
]4

PRE-STAR%UP
z_ WARNING: Failure to observe the following warnings could result in serious personal injury:
1. Follow recognized safety practices and wear protective goggles when checking or servicing refrigerant system.
2. Do not operate compressor or provide any electric power to unit unless compressor terminal cover is in place and secured.
3. Do not remove compressor terminam cover until all emectrical sources are disconnected.
4. Relieve and recover aH refrigerant from system before touching or disturbing anything inside terminal box if refrigerant
Beak is suspected around compressor terminals.
5. Never attempt to repair soldered connection while refrigerant system is under pressure.
6. Do not use torch to remove any component. System contains oil and refrigerant under pressure. To remove a component,
wear protective goggles and proceed as folmows:
a. Shut off electrical power to unit.
b. Relieve and reclaim aim refrigerant from system using both high- and low-pressure ports.
c. Cut component connecting tubing with tubing cutter and remove component from unit.
d. Carefully unsweat remaining tubing stubs when necessary. Oim can ignite when exposed to torch flame.
Proceed as fbllows to inspect and prepare the unit fbr initial starmp:
1 Remove access panel
2. Read and follow instructions on all WARNING, CAUTION, and INFORMATION labels attached to, or shipped with, uniL
3. Make the following inspections:
a. Inspect fbr shipping and handling damages such as broken lines, loose parts, disconnected wires, etc.
b. Inspect fbr oil at all refrigerant tubing connections and on unit base. Detecting oil generally indicates a refrigerant leak. Leak test all
refi'igerant tubing connections using electronic leak detector, halide torch, or liquid-soap solution. If a refi'igerant leak is detected, see
(?beck for Refi'igerant Leaks section.
c. Inspect all field- and fhctoryowiring connections. Be sure that connections are completed and tight.
d. Ensure electrical wiring does not contact refrigerant tubes or sharp metal edges.
e. Inspect coil fins. If damaged during shipping and handling, careffdly straighten fins with a fin comb.
Verif) the fbllowing conditions:
a. Make sure that condenser-fan blade is correctly positioned in fhn orifice. Leading edge of condenser-fan blade should be 1/2 in.
naaxinmm from fan orifice (See Fig. 1i)_
b. Make sure that air filter(s) is in place.
c. Make sure that condensate drain tlap is filled with water to ensure proper &ainage.
d. Make sure that all tools and miscellaneous loose parts have been removed.
START-UP
F. CHECK FOR REFRIGERANT LEAKS
Proceed as fbllows to locate and repair a refi'igerant leak and to charge the unit:
1 Locate leak and make sure d-_atrefi'igerant system pressure has been relieved and reclaimed fiom both high- and tow-pressure ports
G,
MOTORANDFANHUB MOTOR SHAFT
C99009
Fig. ll--Fan Blade Clearance
2Repair leak following accepted practices. NOTE: Install a filter drier whenever tl-le system has been opened for repair.
3 Add a small charge of Ro22 refrigerant vapor to system and leakotest unit.
4. Recover refl'igerant f?om refi'igerant system and evacuate to 500 microns if no additional leaks are not found.
5. (;barge unit with R-22 ref?igerant, using a volumetric-charging cylinder or accurate scale_ R@_' lo zmit rating p/ate/br _'eqz_il'ed cha_ve.
Be sure to add extra refi'igerant to compensate for internal volume of filter drier.
START UP COOLmNG SECTmON AND MAKE ADJUSTMENTS
Z_ CAUTION: Complete the required procedures given in the Pre-Starto Up section before starting the unit. Do not jumper
any safety devices when operating the unit. Do not operate the compressor when the outdoor temperature is below 40°F
(unless accessory Iowoambient kit is installed). Do not rapid-cycle the compressor. AHow 5 minutes between "on" cycles to
prevent compressor damage.
15

H. CHECKINGCOOLINGCONTROLOPERATION
Start and check the unit %r proper cooling control operation as %llows:
1. Place room thermostat SYSTEM switch in OFF position Obsela'e that blower motor starts when FAN" switch is placed in ON position and
shuts down after 30 second _hn time delay expires when FAN switch is placed in AUTO position.
2. Place SYSTEM switch in COOL position and FAN" switch in AUTO position. Set cooling control below room ternperamre. Observe that
compressor, condenser fan, and evaporator blower motors start. Observe that compressor and outdoor fan shut down when contIol setting
is satisfied and that indoor blower shuts down afier 30 second fire time delay expires.
3. When using an auto-changeover room thel_nostat, place both SYSTEM and FAN' switches in AUTO positions. Obsela-e that unit operates
in heating mode when temperature conhol is set to "call for heating" (above room temperature) and operates in cooling mode when
temperature control is set to "call fbr cooling" (below room temperature).
IMPORTANT: Three-phase, scroll compressor units (PA1P048, PA2P030-060) are direction-oriented. These units must be checked to ensure
proper compressor 3-phase power lead orientation. If not corrected within 5 minutes, the internal protector will shut off the compressor. The
3-phase power leads to the unit must be reversed to correct rotation. When turning backwards, scroll compressors emit elevated noise levels, and
the difference between compressor suction and discharge pressures may be &amatically lower than nom_al.
I. CHECKING AND ADJUSTING REFRBGERANT CHARGE
_fhe refi'igerant system is fldly charged with R-22 refrigerant, tested, and ihctory-sealed.
NOTE: Adjustment of the refrigerant charge is not required unless the unit is suspected of not having the proper R-22 charge.
A superheat charging chart is attached to the outside of the service access panel. The chart includes the required suction line temperature at given
suction line pressures and outdoor ambient temperatures (See Fig. 15 27).
An accurate superheat, thermocouple- or thermistor-type thermometer, a sling psychrometer, and a gauge manifold are required when using the
superheat charging method fbr evaluating the unit charge. Do 1rot _*.seme_'c_¢_?"or .sma/[ dia/-Ope thermometer:_' beca_¢se th<_"are not a&,q_¢ate for
thi.v _379eq/ sneas_lreme_t
NOTE: Allow system to operate in the cooling mode for a minimum of 10 minutes before checking or adjusting refi'igerant charge.
Z_X CAUTION: When evaluating the refrigerant charge, an indicated adjustment to the specified factory charge must
always be very minimal If a substantial adjustment is indicated, an abnormal condition exists somewhere in the cooling
system, such as insufficient airflow across either coim or both coils.
Proceed as %llows:
1. Remove caps fi'om low- and high-pressure service fittings
2. Using hoses with valve core depressors, attach tow- and high-pressure gauge hoses to low- and high-pressure service fittings, respectively
3. Start unit in Cooling mode and let unit run until system pressures stabilize
4. Measure and record the following:
a. Outdoor arnhient-air temperature (_>F db).
b. Evaporator inlet-air ternperamre (_'F wb).
c. Suction-tube tenlperatme (_'F) at low-side service fitting.
d. Suction (!ow-side) pressure (psig).
5. Using "Cooling Charging Cha_s" compare outdoor-air temperature (°F dfb) with the suction tine pressure (psig) to determine desired system
operating suction line temperature. See Fig. 15-27.
6. Compare actual suction-robe temperature with desired suction-tube temperature. Using a tolerance of ÷3°F, add refi'igerant if actual
temperatt_re is more than 3_>Fhigher than proper suction-robe temperature, or remove refrigerant if acttml temperature is more than 3_>Flower
than required suction-tube temperature.
NOTE: If the problem causing the inaccurate readings is a refi'igerant leak, refer to Check for Refl'igerant Leaks section.
J. INDOOR AIRFLOW AND AIRFLOW ADJUSTMENTS
Z_ CAUTION: For cooling operation, the recommended airflow is 350 to 450 cfm for each 12,000 Btuh of rated cooling
capacity.
Tables 8 and 9 show cooling airt)ows at various external static pressures. Refer to these tables to detem_ine the airflow _br the system being
installed.
NOTE: Be sure that all supply- and return-air grilles are open, free from obstructions, and adjusted properly.
Z_ WARNmNG: Disconnect electrical power to the unit and install lockout tag before changing blower speed. Electrical
shock can cause serious injury or death.
Airflow can be changed by changing the lead connections of the blower motor
Unit PAIP two- or three-speed motors (except size 030) are f3ctory wired for tow speed operation Unit PAIP030 is factoD" wired fbr rnediurn
speed
16

ACCESSORY ELECTRIC NEAT_
--!
COMMON _127 BRN
R4V SPLICE BOX
UNIT COMPONENT ARRANGEMENT
OUTDOOR FAN
SECTION
@RESSOR
]TION
COMP
C S
INDOORFAN
SECTIONsoGsoGoONLY
50GXO42060
CONIROL UOX AREA
-EQUIP
GND
DISCONNECT
REL
-- RDN POWER ENTRY
LEGEND
z_, FIELD SPLICE C CONTACTOR
o TERMINAL (MARKED) CAP CAPACITOR
o TERMINAL (UNMARKED) COMP COMPRESSOR MOTOR
• SPLICE EQUIP EQUIPMENT
o SPLICE (MARKED) FU FUSE
FACTORY WIRING GND GROUND
FIELD CONTROL WIRING FIR NEATER RELAY
---FIELD POWER WIRING NTR NEATER
=H ACCESSORY OR OPTIONALIFM INDOOR FAN MOTOR
WIRING IP INTERNAL PROTECTOR
--TO INDICATE COMMON OFM OUTDOOR FAN MOTOR
POTENTIAL ONLY: QT QUADRUPLE TERMINAL
NOT TO REPRESENT SB SLOW BLOW FUSE
WIRING ST TNERMISTOR START
TC TNERMOSTAT COOLING
TDR TIME DELAY RELAY
TN TNERMOSTAT NEATING
TRAN TRANSFORMER
NOTES:
I,IF ANY OF TNE ORIGINAL WIRES FURNISNED ARE REPLACED,
IT MUST BE REPLACED WlTN TYPE 90 DEGREE C WIRE OR
IT'S EQUIVALENT
2SEE PRICE PAGES FOR TNERMOSTAT AND SUBBASES
5USE 75 DEGREE COPPER CONDUCTORS FOR FIELD INSTALLATION
4,FOR NIGN SPEED IFM,DISCONNECT RED
WIRE FROM TDR;3 AND CONNECT BLK WIRE FROM IFM
FOR MEDIUM SPEED,DISCONNECT RED WIRE
FROM TDR;S AND CONNECT BLU WIRE FROM IFM
TDR II_) FARSEQUENCE
D T T+30
6 6
ENERGIZED DE NNNNDIZND
C99003
Fig. 12--Wiring Diagram {208/230o60ol)
All PA2P units are facto O" wired %r tow speed and may need to be wired %r medium or high speed in the field
K. For 2081230V
For color coding on the 208 _0Vq_ motor leads, see Table 6,
17

NEAT SCNEMATIC
I
R ON G
AUTO Slg
TCI °
AUTO
,IEA 0FF
TH_o
300L M _I
AUTO _ _c--_@_
HEAT TH2
OFF
W2
SEE NOTE#2
COMMON
136 YEL
RED_
YEL
WI55 BLK
YEL PRIMARY
WI56 460V
TRANI @.W25
i
WI21 RED
Wl6 GRN
WlI5 YEL
Z_- W72 WNT
Wl63 PNK
WlD2 VlO
I
IWI66 GRA I
WI53 BRN
3" W127 BRN
CAP2 YEL OFM
@_BFIN
060 ONLY
LI
WIg7 YEL COMP
L5
GRN YEL _W26 GRN YEL I
/
GRN YEL OF/N YEL
IFM
WII BRN
ORN
BRN
WIIBRN
WIO BFIN
BRN
ACCESSORY ELECTRIC klEAT_
W7O BRN
153 BRN
NRI (5 KW)_k BRN
NRI & 2 (IO KW)_w7o BRN
NRI,R & 3 (15 KW)__------_4_j BRNBRN
@1,2,3 & 4 (20 KW)
24V SPLICE BOX
UNIT COMPONENT ARRANGEMENT
3UTDOOR FAN
SECTION
COMPFIE_SOFI INDOOR FAN CONTROL BOX AREA
SECTION SECTION
COMP
c8
R
50GXO42 OGO
ilNGLE PT
iCONNECTION
iFOR
iELECTHEAT
iSEE HEATER J/EQUIP
6ND
r--i
I
24_ POWER ENTRY
LEGEND
FIELD SPLICE C CONTACTOR
TERMINAL (MARKED) CAP CAPACITOR
o TERMINAL (UNMARKED) COMP COMPRESSOR MOTOR
o SPLICE EQUIP EQUIPMENT
c_SPLICE (MARKED) GND GROUND
FACTORY WIRING NR PLEATER RELAY
FIELD CONTROL WIRING IFM INDOOR FAN MOTOR
--_ FIELD POWER WIRING IP INTERNAL PROTECTOR
--- ACCESSORY OR OPTIONALOFM OUTDOOR FAN MOTOR
WIRING QT QUADRUPLE TERMINAL
--TO INDICATE COMMON TC TNERMOSTAT COOLING
POTENTIAL ONLY: TDR TIME DELAY RELAY
NOT TO REPRESENT TN TNERMOSTAT NEATING
WIRING TRAN TRANSFORMER
NOTES:
TDR[13) FANSEQUENCE
0 T T+_O
G G
ENEIIGIZED DEENERGIZED
IIF ANY OF TNE ORIGINAL WIRES FURNISNED ARE REPLACED,
IT MUST BE REPLACED WITN TYPE go DEGREE C WIRE OR
IT'S EQUIVALENT
2SEE PRICE PAGES FOR TNERMOSTAT AND SUBBASES
3,USE 75 DEGREE COPPER CONDUCTORS FOR FIELD INSTALLATION,
4,FOR NION SPEED IFM,DISCONNECT RED
WIRE FROM TDR;3 AND CONNECT BLK WIRE FROM IFM
FOR MEDIUM SPEED,DISCONNECT RED WIRE
FROM TDR;# AND CONNECT BLU WIRE FROM IFM
C99004
Fig, 13--Wiring Diagram (208!230o60o3)
To change the speed of the indoor £aa motor (IFM), remove the Jim motor speed leg lead [?om the time delay relay (TDR). This wire is attached
to temainal 3 of TDR for singleophase and 3ophase units To change the speed, remove and replace with lead for desired blower motor speed
Ins_date t,/Te removed lead to moid contact _ith chassis pat%.
L FOR 460oV G_= MOTORS
For color coding on the 460ox GE motor leads, see Table 7
18

MAXIMUM WIRE
SIZE 2 AWG
USED WlTN
ACCESSORY
ELECTHEAT
OPTION ONLY
USED WITN
NEATER OPTIONS
5,10 & 15 KW
MAXIMUM WIRE
SIZE 2 AWG
USED WITN
ACCESSORY
ELECTNEAT
OPTION ONLY,
USED WITN
NEATER OPTIONS
20 KW (ONLY)
MAXIMUM WIRE
SIZE 2/0 AWG
ON G
THI
COMMON
SEE NOTE#Z
_- Wl6 GRN
GWlI3 YEL
Z_Z W72 WNT
Wl63 PNK
W162 VlO
IWl64 GRA
E
_J_ Wl55 BRN
WI27 BRN
Z4V SPLICE BOX
UNIT COMPONENT ARRANGEMENT
OUTDOOR FAN
SECTION
CONTROLBOXAREA
SINGLEPTi
CONNECTION
FOR
ELECTHEAT
.....
p; p,CE_
COMPRESSOR INDOOR FAN
SECTION SECTION
c S
R
COMP
506X042 060
Wll BRN
WlO BRN
BRN
ACCESSORY ELECTRIC klEAT_
_,,,, I I _ _WYO BRN
NRI (5 ,,,_,___ R ,)CD_wls5 BRN
NR, NRI,DKWl "-" BRN
NRI,2 & 3 (15KW)_ k
NRI,Z,3 &4 (20 KW) ___ Dr_
_ %-J_,J%=J
I
I
LEGEND
-EQUIP
ORB
-- 24V POWER ENTRY
FIELD SPLICE C CONTACTOR
<:D TERMINAL (MARKED) CAP CAPACITOR
o TERMINAL (UNMARKED) COMP COMPFIESSOFIMOTOR
o SPLICE EQUIP EQUIPMENT
<3, SPLICE (MARKED) FU FUSE
FACTORY WIFIING GND GROUND
FIELD CONTROL WlFIING NR NEATEFI FIELAY
--- FIELD POWER WlFIING NTR PLEATER
=H ACCESSORY OR OPTIONALII_M INDOOFI FAN MOTOFI
INTERNAL PROTECTOR
WIRING OFM OUTDOOR FAN MOTOR
--TO INDICATE COMMON
POTENTIAL ONLY: QT QUADRUPLE TERMINAL
NOT TO REPRESENT S,B, SLOW BLOW FUSE
WIRING TC TNERMOSTAT COOLING
TDR TIME DELAY RELAY
TN TNERMOSTAT PLEATING
TRAN TRANSFORMER
NOTES:
IIF ANY OF TNE ORIGINAL WIRES FURNISNED ARE REPLACED,
IT MUST BE REPLACED WlTN TYPE 90 DEGREE C WIRE OR
IT'S EQUIVALENT
2SEE PRICE PAGES FOR TNERMOSTAT AND SUBBASES
5USE 75 DEGREE COPPER CONDUCTORS FOR FIELD INSTALLATION,
4,FOR NIGN SPEED IFM,DISCONNECT RED
WIRE FROM TDR;3 AND CONNECT BLK WIRE FROM IFM
FOR MEDIUM SPEED,DISCONNECT RED WIRE
FROM TDR;3 AND CONNECT BLU WIRE FROM IFM
TDR(13} FANSEQUENCE
0 T T+30
G
ENEROIZED DEENERGIZED
C99005
Fig, 14--Wiring Diagram (460o60o3)
To change the speed of the indoor fan motor (IFM), remove fun motor speed lead from the time delay relay (TDR) and replace with the lead %r
the desired blower motor spee& The motor speed lead is attached to terminal 3 of TDR_ For low and medim_n speeds black must be connected
to the jumper wire./n.sz#ate remuled lead end to mE)id contact _,Jt,/l C,I_a.S.SR.SparXx. To select high speed on 460_v GE motors, separate the black
female quick connect (QC) flora the jumper lead male quick connect (QC) and connect the black lead to the BR. ]nsz#clte thejzm_psr to moid
conlact _ith an}: chas,sis pro%'.
19

fTable 6--Color Coding for 208/230=V Motor Leads
3-SPEED 2-SPEED
Nack = high speed black = high speed
blue = medium speed
red = low speed red =low speed
Table 7--Color Coding for 460-V GE Motor Leads
3-SPEED
Nack = high
violet = jumper
orange = medium
red = low
2-SPEED
black = high
blue = jumper
red = low
M. COOLING SEQUENCE OF OPERATmON
With [l_eroom thermostat SYSTEM switch in the (eel position and the FAN switch in the AUTO position, the cooling sequence of operation
is as fPllows:
When the room temperatnre rises to a point that is slightly above the cooling control setting of the thermostat, the thermostat completes the circuit
between thermostat terminal Rto terminals Y and G These completed circuits through the thermostat connect contactor coil (C) (through unit wire
Y) and time delay relay (TDR) (through unit wire G) ac*oss the 24ov seconda W of transformer (TRAN).
The normally open contacts of energized contactor (C) close and complete the circuit through compressor motor (COMP) to condenser (outdoor)
fire motor (OFM). Both motors start instantly.
The set of normally open contacts of energized relay TDR close and complete the circuit through evaporator blower (indoor) fhn motor (IFM)
NOTE: Once the compressor has started and then has stopped, it should not be started again until 5 minutes have elapse&
The cooling cycle remains _on" until the room temperature drops to a point that is slightly below the cooling control setting ot'the roonr thermostat.
At this point, the tl'lcrmostat "breaks" the circuit between thermostat terminal R to terminals Y and G These open circuits deenergize contactor
coil C and relay coil TDR The condenser and compressor motors stop After a 30-second delay, the blowe* motor stops The unit is in a %tandhy"
condition, waiting for the next "call for cooling" fi'om the room thermostat.
MAINTENANCE
To ensure continuing high performance_ and to minimize &e possibility of premature equipment _hilure_periodic maintenance must be perfPrmed
on this equipment. This cooling unit should be inspected at 1east once each year by a qualified service person To troubleshoot heating or cooling
of units, refer to tables at the back of the book.
NOTE TO EQUIPMENT OVv_'ER: Consult your local dealer about the availability of a maintenance contract.
z_ WARNING: The abHRy to propedy perform maintenance on this equipment requires certain expertise, mechanical
skills, tooJs, and equipment, ffyou do not possess these, do not attempt to perform any maintenance on this equipment other
than those procedures recommended in the User's Manual FAILURE TO HEED THS WARNmNG COULD RESULT IN SERIOUS
PERSONAL [NJURY AND POSSIBLE DAMAGE TO THIS EQUmPMENT.
Z_ WARNmNG: Failure to follow these warnings could resuR in serious persona[ injury:
1. Turn off electrica[ power to the unit and install Bockout tag before performing any maintenance or service on the unit.
2. Use extreme caution when removing panems and parts. As with any mechanical equipment, persona[ injury can result from
sharp edges, etc.
3. Never place anything combustible either on, or in contact with, the unit.
Z_ CAUTION: Errors made when reconnecting wires may cause improper and dangerous operation. Labem all wires prior
to disconnection when servicing.
The minimum maintenance requirements %r this equipment are as %llows:
1. Inspect air filter(s) each month Clean or replace when necessa_-
2. Inspect indoor coil, &ain pan, and condensate &ain at least each cooling season for cleanliness. Clean when necessaw.
3. Inspect blower motor and wheel for cleanliness and check lubrication each heating and cooling season. Clean when necessary.
4. (heck electrical connections fk_r tightness and controls t'or proper operation each heating and cooling season. Service when necessao,-.
5. Ensure electric wires are not in contact with refiigerant robing or sharp metal edges.
N. AIR FILTER
2O