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PY2PNB060090AA
Installation Guide
40 pgs2.5 Mb0
Owner’s Manual
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Payne PY2PNB060090AA, PY2PNB060115AA, PY2PNB042060AA, PY2PNB048090AA, PY2PNB036060AA Installation Guide

...
Installation & Start-up
Instructions
PY1P, PY2P
Single Packaged Gas Heating/
Electric Cooling Units
NOTE: Read the entire instruction manual before starting the insta]lation.
TABLE OF CONTENTS
SAFETY CONSIDERATIONS ..................................................................................................................................................................................... 2
INTRODUCTION .......................................................................................................................................................................................................... 3
RECEIVING AND INSTALLATION .......................................................................................................................................................................... 3
IDENTIFY UNIT ................................................................................................................................................................................................ 3
INSPECT SHIPMENT ........................................................................................................................................................................................ 3
INSTALLATION ................................................................................................................................................................................................ 3
ROOF CURB ...................................................................................................................................................................................................... 3
SLAB MOUNT ................................................................................................................................................................................................... 3
GROUND MOUNT ............................................................................................................................................................................................ 3
INSTALL DUCT CONNECTIONS ...................................................................................................................................................................... 12
CONFIGURING UNITS FOR DOWNFLOW (VERTICAL) DISCHARGE ................................................................................................ 12
INSTALL ELECTRICAL CONNECTIONS ........................................................................................................................................................ 14
HIGH-VOLTAGE CONNECTIONS ............................................................................................................................................................... 14
SPECIAL PROCEDURES FOR 208-V OPERATION ................................................................................................................................... 15
CONTROL VOLTAGE CONNECTIONS ...................................................................................................................................................... 15
HEAT ANTICIPATOR SE'FflNG .................................................................................................................................................................. 15
TRANSFORMER PROTECTION ................................................................................................................................................................... 15
PRE-START-UP .......................................................................................................................................................................................................... 16
START-UP ................................................................................................................................................................................................................... 18
CHECK FOR REFRIGERANT LEAKS ............................................................................................................................................................... 18
START-UP HEATING AND MAKE ADJUSTMENTS ..................................................................................................................................... 18
CHECK HEATING CONTROL ...................................................................................................................................................................... 18
CHECK GAS INPUT ....................................................................................................................................................................................... 22
ADJUST GAS INPUT ...................................................................................................................................................................................... 22
CHECK BURNER FLAME ............................................................................................................................................................................. 23
AIRFLOW AND TEMPERATURE RISE ...................................................................................................................................................... 23
HEATING SEQUENCE OF OPERATION ..................................................................................................................................................... 23
LIMIT SWITCHES ........................................................................................................................................................................................... 23
AUXILIARY LIMFF SWITCH (ROLLOUT) ................................................................................................................................................. 24
START-UP COOLING AND MAKE ADJUSTMENTS ..................................................................................................................................... 24
CHECKING COOLING CONTROL OPERATION ....................................................................................................................................... 24
CHECKING AND ADJUSTING REFRIGERANT CHARGE ...................................................................................................................... 24
INDOOR AIRFLOW AND AIRFLOW ADJUSTMENTS ............................................................................................................................. 25
COOLING SEQUENCE OF OPERATION .................................................................................................................................................... 25
MAINTENANCE ........................................................................................................................................................................................................ 26
AIR FILTER ..................................................................................................................................................................................................... 28
EVAPORATOR BLOWER AND MOTOR .................................................................................................................................................... 28
FLUE GAS PASSAGEWAYS ......................................................................................................................................................................... 30
COMBUSTION-AIR BLOWER ...................................................................................................................................................................... 30
LIMIT SWITCH ............................................................................................................................................................................................... 31
BURNER IGNITION ........................................................................................................................................................................................ 31
Form: IM-PY1P-03 Cancels: IM-PY1P-02 Printed in U.S.A. 11-02 Catalog No. 53PY-1P15
MAIN BURNERS ............................................................................................................................................................................................. 31
CONDENSER COIL, EVAPORATOR COIL, AND
CONDENSATE DRAIN PAN .......................................................................................................................................................................... 33
CONDENSER FAN .......................................................................................................................................................................................... 33
ELECTRICAL CONTROLS AND WIRING .................................................................................................................................................. 34
REFRIGERANT CIRCUIT ............................................................................................................................................................................... 35
GAS INPUT ...................................................................................................................................................................................................... 35
EVAPORATOR AIRFLOW ............................................................................................................................................................................. 35
METERING DEVICE ACUTROL DEVICE ............................................................................................................................................. 35
LIQUID LINE STRAINER .............................................................................................................................................................................. 35
TROUBLESHOOTING ............................................................................................................................................................................................... 35
START-UP CHECKLIST ............................................................................................................................................................................................ 35
NOTE TO INSTALLER Before the installation, READ THESE INSTRUCTIONS CAREFULLY AND COMPLETELY. Also, make sure the User's Manual and Replacement Guide are left with the unit after installation. The furnace is NOT to be used for temporary heating of buildings
or structures under construction.
A99338
Fig. 1--Unit PYIP and PY2P
(Low NOx Model Available)
SAFETY CONSIDERATIONS
installation and servicing of air*conditioning equipment can be hazardous clue 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 functions 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 all safety codes. Wear safety glasses and work gloves. Use quenching cloth for unbrazing operations. Have fire extinguisher available for
all brazing operations.
WARNING: Improper installation, adjustment, alteration, service, maintenance, or use can cause carbon monoxide
poisoning, fire, or an explosion which can result in personal injury or unit damage. Consult a qualified installer, service agency, or gas supplier for information or assistance. The qualified installer or agency must use only factory-authorized kits
or accessories when modifying this product.
A WARNING: Before performing service or maintenance operations on unit, turn off gas supply to unit. Then turn off unit
main power switch and install lockout tag, Electrical shock or explosion could cause serious injury or death.
Recognize safety information. This is the safety-alert symbolz_x. When you see this symbol in instructions or manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, CAUTION, and NOTE. These words are used with the safety*alert symbol. DANGER identifies the most serious hazards which will result in serious injury or death. WARNING signifies a hazard which could result in serious injury
or death. CAUTION is used to identify 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.
.... 2==.
These instructions cover minimum requirements and conform to existing national standards and safety codes. In some instances, these instructions exceed certain local codes and ordinances, especially those that may not have kept up with changing residential construction practices. We require
these instructions as a minimum for a safe installation.
INTRODUCTION
The PYIP and PY2P units (See Fig. I) are fully self-contained, combination Category 1gas heating/electric cooling units designed for outdoor installation (See Fig. 2 and 3 for unit dimensions). All unit sizes have return and discharge openings for both horizontal and downflow
configurations, and are factory shipped with all downflow duct openings covered. Units may be installed either on a rooftop, a cement slab, or directly on the grounst if local codes permit (See Fig. 4 for roof curb dimensions).
Models with an N in the thirteenth position of the model number are dedicated Low NO×units designed for California installations. These models meet the California maximum oxides of nitrogen (NOx) emissions requirements of 40 nanograms/joule or less as shipped from the
factory and must be installed in California Air Quality Management Districts where a Low NO× rule exists.
RECEIVING AND INSTALLATION
PROCEDURE I--CHECK EQUIPMENT
A. IDENTIFY UNIT
The unit model number and serial number are stamped on unit identification plate. Check this information against shipping papers and job data. Verify unit voltage and amperage requirements listed on unit rating plate agree with power supply provided to unit.
B. INSPECT SHIPMENT
inspect for shipping damage while Emitis still on shipping pallet. If unit appears to be damaged or is torn loose from its anchorage, have it examined by transportation inspectors before removal. Forward claim papers directly to transportation company. Manufacturer is not responsible for any
damage incurred in transit. Check all items against shipping list. immediately notify the nearest distributor if any item is missing.
To prevent loss or damage, leave all parts in original packages until installation.
C. INSTALLATION
1. Remove unit from shipping carton. Leave top shipping skid on the unit as a spreader bar to prevent the rigging straps from damaging the unit. if the wood skid is not available, use a spreader bar of sufficient length to protect unit from damage.
2. Position the lifting bracket assembly around the base of the unit. Be sure the strap does not twist.
3. Place each of the 4 metal lifting brackets into the rigging holds in the composite pan.
4. Thread lifting bracket strapping around bottom perimeter of unit as follows: a. Open lever of tension buckle (ratchet type).
b. Feed strapping through tension buckle as shown in Fig. 7A. c. Pull strapping through tension buckle unit taut.
d. Snap lever down to lock strap in tension buckle. To release strapping, squeeze safety latch, lift lever, and pull webbing outward.
5. Tighten the tension buckle until it is taut. Lifting brackets must be secure in the rigging holds.
6. Attach field-supplied clevis or hook of sufficient strength to hole in the lifting bracket (See Fig. 7B).
7. Attach the 2 safety straps directly to the clevis or hook at the 4 rigging brackets. DO NOT attach the safety straps to the lifting brackets (See Fig. 7B).
8. Position lifting point directly over the unit's center of gravity.
9. Lift unit. When unit is directly over the roof curb, remove the 2 safety straps. Lower the equipment onto the roof curb.
PROCEDURE 2--PROVIDE UNIT SUPPORT
A. ROOFCURB
install accessory roof curb in accordance with instructions shipped with curb (See Fig. 4 for roof curb dimensions), install insulation, cant strips, roofing, and flashing. Ductwork must be attached to curb.
IMPORTANT: The gasketing of the unit to the roof curb is critical for a watertight seal. Install gasketing material supplied with the roof curb. improperly applied gasketing can also result in air leaks and poor unit performance. Curb should be level to within 1/4 in. This is necessary for unit drain to function properly. Refer to accessory roof curb installation instructions for additional information as required.
B. SLAB MOUNT
Place the unit on a solid, level concrete pad that is a minimum of 4 in. thick with 2 in. above grade. The slab should be flush on the compressor end of the unit (to allow condensate drain installation) and should extend 2 in. on the three remaining sides of the unit (See Fig. 6). Do not secure the unit to the slab except when required by local codes.
C. GROUND MOUNT
The unit may be installed either on a slab or placed directly on the ground if local codes permit. Place the unit on level ground prepared with gravel for condensate discharge.
PROCEDURE 3--FIELD FABRICATE DUCTWORK
Secure all ducts to roof curb and building structure on vertical discharge units. Do not connect ductwork to unit. For horizontal applications, unit is provided with flanges on the horizontal openings. Installation of flexible duct connector is recommensted to prevent transmission of vibration
and/or noise to structure. All ductwork 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.
.... 3___
BLOCKOFFPANELON0180NL/_
[15.83] 0PENIN6 OPENING
\
\
SUPPLT RETUR_
DUCT DUCT
I I
[3_48]
-- 249_6 --550.5 149_6
REAR VIEW
REQUIRED CLEAP_,NCE TO COMGUSTIBLE MATL,
TOP OF UNIT ................................................................................... 1400 3556]
DUCT S DE OF UNIT ......................................................................... 2.00 508
SIDE OPPOSITE DUCTS ................................................................ 1400 3558]
BOTTOM OF UN T ............................................................................. 0.50 127
ELECTRIC HEAT PANEL ................................................................. 3600 [9t4 4]
NEC. REQUIRED CLEARANCES.
BETWEEN UN TS, POWER ENTRY S DE .................................... 4200 10668
UNIT AND UNGROUNDED SURFACES, POWER ENTRY SIDE 3600 [91401 UNIT AND BLOCK OR CONCRETE WALLS AND OTHER
GROUNDED SURFACES, POWER ENTRY SIDE ......................... 4206 [1066 8]
iNCHES [mm]
_NCHES mm]
LEGEND
CG- Center of Gravity COND- Coi_densor
EVAP_Evaporator
NEC -NationalElectricalCode
REQrD- Required NOTE:Dimensions areinin [mm]
I193_ [4700]
t
EVAP_ C01L_
/
TOPVIEW
REQUIRED CLEARANCE F0N OPERATION AND SERVICING
EVAR CO_L ACCESS SIDE ............................................................ 36.00 9140
POWER ENTRY SIDE .................................................................... 36001914 0l
(EXCEPT FOR NEe REQUIREMENTS)
UNIT TOP ....................................................................................... 48.00 [1219.2
S DE OPPOS TE DUCTS .............................................................. 3600 [9 40
DUCT PANEL ................................................................................. 1200 [304 8] *
*MINIMUM DISTANCES: IF UNIT iS PLACED LESS THAN 1200 [304 8] PROM
WALL SYSTEM, THEN SYSTEM PERFORMANCE MAYBE COMPROMISE
iNCHES [mm]
Note: Wire Grilles are a field installed option.
--1163 [4.58]
I /J, , ,
L_COMPRES_OR, BLO_ER_ GAS SECTION
& ELECTRICAL ACCESS PANEL
122_3 [482B]
FRONT VIEW
Ib k9
"A"
50 [0.20]
RIGHT SIDE VIEW
CENTER OF GRAVITY
X Y
IN. {aM)
20.0 (508.0) 14.0 (355.6)
22.5 (571.5) 13.0 (330.2)
21.5 (548.1) 13.75 (349.3)
22.5 (571.5) 14.0 (355.6)
21.5 (548.1) 13.5 (342.9)
22.0 (558.8) 14.5 (368.3)
22.0 (558.8) 15.3 (387.4)
22.0 (558.8) 15.3 (387.4)
UNIT
PYtPO18040
PY1 P824040/860 PY1 P930040/860
PY1 P936060/890 PY1 P942060/890 PY2P824040/060
PY2P930040/860 PY2P936060/890
42 7 [h_B]
--326_5
_72 4
_31.0
[32.72]
[2_85]
LEFT SIDE VIEW
ELECTRICAL CHARACTERISTICS UNIT WEIGHT UNIT HEIGHT IN. (MM)
208/230-1-60 249.0 113.2 35.02 (889.5) 208/230-1-60 280.0 127.3 35.02 (889.5)
208/230-I-60, 208/230-3-60 280.0 127.3 35.02 (889.5)
208/230-1-60, 208/230-3-60, 460-3-60 320.0 145.1 37.02 (940.3) 208/230-1-60, 208/230-3-60, 460-3-60 355.0 161.4 35.02 (889.5)
208/230-1-60 290.0 131.5 37.02 (940.3)
208/230-I-60, 208/230-3-60 313.0 142.0 39.02 (991.1)
208/230-1-60, 208/230-3-60, 460-3-60 321.0 145.6 35.02 (889.5)
Fig. 2--PYIP018-042 and PY2P024_036 Unit Dimensions
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 minimum clearance is not required around ductwork. Cabinet return-air static shall not exceed -.25 in. wg.
.... 4 ....
C00055
Z
15.0 (381.0)
15.0 (381.0)
15.0 (381.0)
13.0 (330.2)
13.0 (330.2)
16.0 (406.4)
17.6 (447.0)
16.5 (419.1)
li tttil
j lllLL
4066 [16 01]
1
402T0•
[15i_3]
SUPPLY FURN
DUCT JCT
OPENING " 1
NING
T COND
Y COIL _
EVAP
L
[3.48]
REQUIRED CLEARANCE TO COMBUSTIBLE MATL.
TOP OF UNIT ................................................................................... 14.00 [355.6]
DUCT SIDE OF UNIT ......................................................................... 2.00 [50.8]
SIDE OPPOSITE DUCTS ................................................................ 14.00 [355.6]
BOTTOM OF UNIT ............................................................................. 0.50 [12.7]
FLUE PANEL .................................................................................... 36.00 [914.4]
NED. REQUIRED CLEARANCES.
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]
3512 3473
[13 83] [13 67] [ 13.83]
REARVIEW
1090B
[4294]
\
INCHES [mm]
INCHES [mm]
1193.9
[47 00]
t
TOP VIEW
REQUIRED CLEARANCE FOR OPERATION AND SERVICING
EVAP. 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 12.00 [304.8] FROM
WALL SYSTEM, THEN SYSTEM PERFORMANCE MAYBE COMPROMISE.
Note: Wire Grilles are a field installed option.
LEGEND
CG- Centerof Gravity COND-Condensor
EVAP-Evaporator NEC-NationalElectricalCode
REQ'D-Required
--115.4 [454]
NOTE:Dimensionsarein in. [ram]
INCHES [mini
1123 I
[44 22]
LEFT SIDEVIEW
UNIT
PY1 P048090/115/130 PY1 P060090/115/130
PY2P042060/090 PY2P048090/115/139 PY2P060090/115/139
T ] 141111 llllll
/ !Jlttt ittttl
[I 6_]
_3290
[1295]
_;2 4
[285]
ELECTRICAL CHARACTERISTICS
208-230/1/60, 208/230-3-60, 460-3-60 208/230-1-60, 2081230-3-60, 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, 460-3-60
Fig. 3--PYIP048-060 and PY2P042-060 Unit Dimensions
_OMPRES_OR, BLOWER, GAS SECTION
& ELECTRICAL ACCESS PANEL
122L3 [48.2_]
FLUEHOOD
FRONTVIEW
UNIT WEIGHT UNIT HEIGHT IN. (MM)
Ib k 9
415 188.6 38.98 (990.2) 450 204.5 38.98 (990.2)
382 173.3 38.98 (990.2) 421 191.0 38.98 (990.2) 468 212.3 42.98 (1091.1)
"A"
[5.61]
RIGHTSIDEVIEW
CENTER OF GRAVITY
X Y Z
22 (558.5) 16 (406.4) 17 (432.0) 22 (558.5) 16 (406.4) 17 (432.0)
23.0 (584.2) 16.3 (412.8) 16.6 (421.6)
21.5 (546.1) 16.6 (422.1) 18.0 (457.2)
23.5 (596.9) 16.3 (412.8) 17.6 (447.0)
IN. (MM}
C00056
Roof Curb for Small Cabinet
Note A: When unit mounting screw is used,
retainer bracket must also be used.
UNIT SIZE
PYIP018-042 PY2P024-036
PYIP048-060 PY2P042-060
ODS CATALOG NUMBER
CPRFCURB006A00 CPRFCURB007A00
CPRFCURB008A00 CPRFCURB009A00
insulated Gasket around deck pan outer edge \
A
IN. (MM)
8 (203)
14 (356)
8 (203)
14 (356)
Roof Curb for Large Cabinet
Note A: When unit mounting screw is used,
retainer bracket must also be used.
, /
\
\
\
R/A S/A
"_-_Gssket areund_ / _
\\\ duct
\x
B
IN. (MM)
11(279) 11(279)
16 3/16 (411) 16 3/16 (411)
C
IN. (MM) 161/2 (419) 161/2 (419)
17 3/8 (441) 17 3/8 (441)
\ /
COOO76
D
iN. (aM)
28-3/4 (730) 28-3/4 (730)
40-1/4 (1022) 40-1/4 (1022)
NOTES:
1. Ro_ curb mustbe setup Drunitbeinginstalled.
2. Seal strip must be applied, as required, to unit being installed.
3. Dimensions in ( ) are in millimeters.
4. Roof curb is made of f6-gage steel.
5. Table lists only the dimensions, per part number, that have changed.
6. Attach ductwork to curb (flanges of duct rest on curb).
7. Insulated panels: 1-in. thick fiberglass 1 Ib density.
8. Dimensions are in inches. g. When unit mounting screw is used (see Note At, a retainer bracket must be used as well. This bracket must also be used when required by code for hurricane or seismic
conditions. This bracket is available through Micromefl.
Fig. 4--Roof Curb Dimensions
PROCEDURE 4---PROVIDE CLEARANCES
The required minimum operating and service clearances are shown in Fig. 2 and 3. Adequate combustion, ventilation and condenser air must be provided in accordance with section 5.3, Air for Combustion and Ventilation, of the National Fuel Gas Code ANSI (American National Standards institute) Z223.1 or spplicable provisions of local building code. In Canada, follow sections 7.2, 7.3, or 7.4 or CardCGA. (Canadian Gas
Association) B149 Installation Codes or applicable provisions of local building code.
CAUTION: Do not restrict condenser airflow. An air restriction at either the outdoor*air inlet or the fan discharge can
be detrimental to compressor life.
.... 6__.
1 2
Y
©
!
Z
CORNER # 018 024 030 036 042 048 060 024 030 036 042 048 060
1 47.3 53.2 53.2 59.7 67.5 78.9 85.5 55.1 59.5 61.0 72.6 80.0 88.9
2 44.8 50.4 50.4 56.5 63.9 74.7 81.0 52.2 56.3 57.8 68.8 75.8 84.2 3 77.2 86.8 86.8 97.3 110.1 128.7 139.5 89.9 97.0 99.5 118.4 130.5 145.1
4 79.7 89.6 89.6 106.5 113.6 132.8 144.0 92.8 100.2 102.7 122.2 134.7 149.8
TOTAL WEIGHT 249 280 280 320 355 415 450 290 313 321 382 421 468
PYIP PY2P
Fig. 5--PYIP and PY2P Unit Corner Weights
I
EVAP. COND.
COIL COIL
Fig. 6--Slab Mounting Details
X
3
C00070
C99014
HOOK
FEED
Fig. 7A--Threading Bolt for Rigging
The condenser fan pulls air through the condenser coil and discharges it through the top cover. Be sure that the fan discharge does not recirculate to the condenser coil. Do not locate the unit in either a corner or under an overhead obstruction. The minimum clearance under a partial overhang
(such as a normal house overhang) is 48-in. above the unit top. The maximum horizontal extension of a partial overhang must not exceed 48-in.. Do not place the unit where water, ice, or snow from an overhang or roof will damage or flood the unit. Do not install the unit on carpeting, tile,
or other combustible materials. The unit may be installed on wood flooring or on Class A, B, or C roof covering materials.
.... 7 ....
C99067
C99015
SIZE
MAXIMUM WEIGHT A B
I kg in. I mm I mm
JNIT PYIP
018 271 123.2 20.0 508.0 14.0 355.6
024 302 137.3 22.5 571.5 13.0 330.2 030 302 137.3 21.5 546.1 13.75 349.3 036 342 155.1 22.5 571.5 14.0 355.6 042 377 171.4 21.5 546.1 13.5 342.9
048 437 198.6 22.0 558.5 17.0 432.0 060 472 214.5 22.0 558.5 17.0 432.0
INIT PY2P
024 312 142 22.0 558.5 14.50 368.3 030 335 152 22.0 558.5 15.30 388.6
036 343 156 22.0 558.5 15.30 388.6 042 404 183 23.0 584.2 16.3 414.0 048 443 201 21.5 546.1 16.3 414.0 060 490 222 23.5 596.9 16.3 414.3
PROCEDURE 5--RIG AND PLACE UNIT Fig. 7B--Suggested Rigging
CAUTION: When installing the unit on a rooftop, be sure the roof will support the additional weight.
Use spreader bars or crate top when rigging the unit. The units must be rigged for lifting (See Fig. 6). Refer to Table 1 and 2 for operating weight.
Use extreme caution to prevent damage when moving the unit. Unit must remain in an upright position during all rigging and moving
operations.The unit must be level within I/4" for proper condensate drainage; therefore, the ground-level pad or accessory roof curb must be level
before setting the unit in place. When a field-fabricated support is used, be sure that the support is level and properly supports the unit. Lifting point should be directly over the center of gravity for the unit.
PROCEDURE 6--CONNECT CONDENSATE DRAIN
NOTE: When installing condensate drain connection be sure to comply with local codes and restrictions,
Models PYIP and PY2P dispose of condensate water through a 3/4 in. NPT fitting which exits through the compressor access panel (See Fig. 2 and 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 drainage. Make sure that the outlet of the
trap is at least 1 in. lower than the drain pan condensate connection to prevent the pan from overflowing (See Fig. 8). Prime the trap with water. When using a gravel apron, make sure it slopes away from the unit, if the installation requires draining the condensate water away from the unit, install a 2-in. trap at the condensate connection to ensure proper
drainage (See Fig. 8). Make sure that the outlet of the trap is at least I in. lower than the drainpan condensate connection. This prevents the pan fi'om overflowing. Prime the trap with water, Connect a drain tube - using a minimum 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 drain tube downward at a slope of at least 1-in. for every 10 fl of horizontal run. Be sure to check the drain tube for leaks.
PROCEDURE 7--INSTALL FLUE HOOD
The flue hood assembly is shipped screwed to the coil panel in the indoor blower compartment. Remove the service access panel to locate the assembly (See Fig. 31). NOTE: Dedicated low NO× models MUST be installed in California Air Quality Management Districts where a Low NO× rule exists. These models meet the California maximum oxides of nitrogen (NO×) emissions requirements of 40 nanograms/joule or less as shipped from the
factory. NOTE: Low NO× requirements apply only to natural gas installations.
A CAUTION: The venting system is designed to ensure proper venting. The flue hood assembly must be installed as
indicated in this section of the unit installation instructions.
Table l--Physical Data--Unit PYIP
UNIT SIZE PYIP
NOMINAL CAPACITY (ton)
OPERATING WEIGHT (lb.)
COMPRESSORS
Quantity
REFRIGERANT (R-22)
Quantity (lb.)
REFRIGERANT METERING DEVICE
Orifice ID (in.)
CONDENSER COIL
Rows...Fins/in.
Face Area (sq ft)
CONDENSER FAN
Nominal Cfm
Diameter (in.)
Motor Hp (Rpm)
EVAPORATOR COIL
Rows...Fins/in.
Face Area (sq ft)
EVAPORATOR BLOWER
Nominal Airflow (Cfm)
Size (in.)
Motor HP (Rpm)
FURNACE SECTION*
Burner Orifice No. (Qty_.Drill Size)
Burner Orifice No. (Qty_.Drill Size)
RETURN-AIR FILTERS (in.)t
* Based on aRitudeof 0 to 2000 ft.
t Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration Institute) rated cooling airflow or the heating ai_ow velocity of 300 if/minute for throwaway type or 450 ft/minute for high-capacity type. Air filter pressure drop for non-standard filters must not exceed 0.08 in. wg.
Natural Gas
Propane Gas
Throwaway
018040 024040
1½ 2
249 280
2.6 3.5 3.5 3.65 4.4 5.7 5.7
.034 .034
1-.17 1...17
6.1 9.1
2000 2400
22 22
1/8 (825) 1/8 (825)
2-.15 2.-15
3.1 3.1
600 800
10x10 10x10
1/4 (875) 114(1075)
2.-45 2...45
2.-50 2...50
024060
2
280
.034
1.-17
9.1
2400
22
1/8 (825)
2.-15
3.1
800
10 x 10
114(1075)
2.-38
2.-46
20 X 20
030040
2½
280
.034
1.-17
9.1
2400
22
1/8 (825)
2,-15
3.1
1000
10x10
1/4 (1o75)
2,-45 2,-50
20 x 20
030060 036060
2½ 3
280 320
Reciprocating
1
3.65 4.4
Acutrol TM Device
.034 .032
1_.17 1..,17
9.1 10.9
2400 3000
22 22
1/8 (825) ¼ (1100)
2.,.15 3..,15
3.1 3.1
1000 1200
10x10 11x10
1/4 (1075) 1/2 (1075)
2.,.38 2..,38
2._46 2...46
20 X 20 20 X 24
036090
3
320
.032
1...17
10.9
3000
22
¼ (1100)
3...15
3.1
1200
11 x 10
112 (1075)
3...38 3-.46
20X24
042060
3½
355
.034
1.-17
9.1
3000
22
¼ (1100)
4...15
3.1
1400
11 x 10
3_ (1075)
2.-38
2.-46
20x2420 x 20 20 x 20
042090
3½
355
.034
1.-17
9.1
3000
22
¼ (1100)
4.-15
3.1
1400
11 x 10
3_ (1075)
3,..38
3.-46
20 x 24
install the flue hood as follows:
i. This installation must conform with local building codes and with the National Fuel Gas Code (NFGC), ANSI Z223.1 (in Canada,
CAN/CGA B i49. I, and B 149.2) or NFPA (National Fire Protection Association) latest revision. Refer to Provincial and local plumbing or wastewater codes and other applicable local codes.
2. Remove flue hood #am shipping location (inside the blower compartment). Place vent cap assembly over flue panel. Orient screw holes in vent cap with holes in the flue panel.
3. Secure flue hood to flue panel by inserting a single screw on the right side and the left side of the hood.
PROCEDURE 8--INSTALL GAS PIPING
The gas supply pipe enters the unit through the access hole provided. The gas connection to the unit is made to the i/2-in. FPT gas inlet on the manual shutoff or gas valve.
install a gas supply line that runs to the heating section, Refer to Table 3 and the NFGC for gas pipe sizing. Do not use cast-iron pipe, It is recommended that a black iron pipe is used. Check the local utility for recommendations concerning existing lines. Size gas supply piping for 0.5
in. wg maximum pressure drop. Never use pipe smaller than the 1/2-in. FPT gas inlet on the unit gas valve. For natural gas applications, the gas pressure at unit gas connection must not be less than 4.0 in. wg or greater than 13 in. wg while the unit is
operating. For propane applications, the gas pressure must not be less than 7.0 in. wg or greater than 13 in. wg at the unit connection. An i/8-in. NPT plugged tapping, accessible for test gage connection, must be installed immediately upstream of the gas supply connection to the
gas valve. When installing the gas supply line, observe local codes pertaining to gas pipe installations. Refer to the NFGC ANSI Z223.1-1988 NFPA latest
edition (in Canada, CAN/CGA B149. I, (2)-M86). in the absence of local building codes, adhere to the following pertinent recommendations:
i. Avoid low spots in long runs of pipe. Grade all pipe I/4 in. in every 15 ft to prevent traps. Grade all horizontal runs downward to risers.
Use risers to connect to heating section and to meter.
2. Protect all segments of piping system against physical and thermal damage_ Support all piping with appropriate straps, hangers, etc. Use a minimum of one hanger every 6 ft. For pipe sizes larger than I/2 in., follow recommendations of national codes.
3. Apply joint compound (pipe dope) sparingly and only to male threads of joint when making pipe connections. Use only pipe dope that is resistant to action of liquefied petroleum gases as specified by local and/or national codes. Never use Teflon tupe.
4. Install sediment trap in riser leading to heating section (See Fig. 9). This drip leg functions as a trap for dirt and condensate.
5. Install an accessible, external, manual main shutoff valve in gas supply pipe within 6 ft of heating section.
6. Install ground-joint union close to heating section between unit manual shutoff and external manual main shut-off valve.
7. Pressure-test all gas piping in accordance with local and national plumbing and gas codes before connecting piping to unit.
.... 9 ....
Table 1--Physical Data--Unit PYIP (Continued)
UNIT SIZE PYIP
NOMINAL CAPACITY (ton)
OPERATING WEIGHT (lb.)
COMPRESSORS
Quantity
REFRIGERANT (R-22)
Quantity (lb.)
REFRIGERANT METERING DEVICE
Orifice ID (in.)
CONDENSER COIL
Rows.-Fins/in.
Face Area (sq ft)
CONDENSER FAN
Nominal Cfm
Diameter (in.)
Motor Hp (Rpm)
EVAPORATOR COIL
Rows._Fins/in.
Face Area (sq ft)
EVAPORATOR BLOWER
Nominal Airflow (Cfm)
Size (in=)
Motor Hp (Rpm)
FURNACE SECTION*
Burner Orifice No. (Qty._Drill Size)
Natural Gas
Burner Orifice No. (Qty._Drill Size)
Propane Gas
RETURN-AIR FILTERS (in.)1"
Throwaway
* Based on altitude of 0 to 2000 ft.
Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration Instffute) rated cooling airflow or the heating airflow velocity of 300
ft/minute for throwaway type or 450 ftlminute for high-capacity type. Air filter pressure drop for non-standard filters must not exceed 0.08 in. wg.
048090 048115 060115 060139
4 4 5 5
415 415 450 450
048130 060090
4 5
415 450
Scroll Reciprocating
1 1
6.0 6.0 8.0 8.0
6.0 8.0 Acut rol Device
.032
1._17
12.3
3600
22
V, (1100)
3._15
4.7
1600
11 X 10
3/4 (1075)
3...38
3._46
24 X 30
.032
1...17
12.3
3600
22
¼ (1100)
3._15
4.7
1600
11X 10
3/4 (1075)
3...33 3-.42
24 X 30
.032 .030
1...17 2._17
12.3 12.3
3600 3606
22 22
I/, (1100) ¼ (1100)
3.-15 4-.15
4.7 4.7
1600 2000
11X10 11X10
3/4 (1075) 1.0 (1075)
3...31 3.-38
3.-41 3-.46
24 X 30 24 X 30
.030
2...17
12.3
3600
22
¼ (1100)
4_,15
4.7
2000
11 X 10
1.0 (1075)
3_.33
3...42
24X30
2...17
3600
V, (1100)
4...15
2000
11 X 10
1.0 (1075)
3...31
3...41
24 X 30
.030
12.3
22
4.7
Table 2iphysical DataiUnit PY2P
UNIT SIZE PY2P
NOMINAL CAPACITY (ton) OPERATING WEIGHT (lb.)
COMPRESSORS
Quantity
REFRIGERANT (R-221
REFRIGERANT METERING DEVICE
Burner Orifice NO. (Qty...Drgl Size)
Burner Orifice NO. (Qty...Drgl Size)
* Based on altitude of 0 1o 2000 ft.
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/minute for high-capacity type. Air filter pressure drop for non-standard filters must not exceed 0.08 in. wg.
Quantity (lb.)
Orifice ID fin.)
CONDENSER COIL
Rows...Fins/in.
Face Area (sq ft)
CONDENSER FAN
Nominal Cfm Diameter (in.)
Motor Hp {Rpm)
EVAPORATOR COIL
Rows...Fins/in.
Face Area (sq ft)
EVAPORATOR BLOWER
Nominal Airflow (Cfm)
Size (in.)
Motor Hp {Rpm)
FURNACE SECTION*
Natural Gas
Propane Gas
RETURN*AIR FILTERS (in.)_
Throwaway
624040 024060 630046 030060 036060 636096 042060 042090
2 2 2½ 2½ 3 3 3½ 3½
290 290 313 313 321 321 382 382
3.7 3.7 4.4 4.4 5.2 5.2 6.4 6.4
.034 .034 .030 .030 .032 .032 .034 .034
1...17 1...17 1...17 1...17 2._17 2...17 2...17 2...17
10.8 10.8 12.7 12.7 g.f 9.1 12.3 12.3
2350 2350 2350 2350 2350 2350 3300 3300
22 22 22 22 22 22 22 22
1/8 (825) i/8 (825) 1/8 (825) 118 (825) 1_ (825) 1/8 (825) im (825) 1/8 (825)
3...15 3...15 3...15 3...15 3...15 3...15 3...15 3...15
3.1 3.1 3.1 3.1 3.7 3.7 4.7 4.7
800 800 1000 1000 1200 1200 1400 1400
10X10 10X10 10Xf0 i0X10 11X10 11X10 11X10 11Xf0
iN (1075) 1/4(1075) 114 (1075) 1_ (1075) 1/2(1075) i/2 (1075) 3/4 (1075) 314 (1075)
2...44 2...38 2...44 2...38 2._38 3...36 2...38 3...38
2...50 2...46 2...50 2...46 2...46 3...46 2...46 3...46
20X20 20X20 20X20 20X20 20X24 20X24 24X30 24X30
Scroll
1
NOTE: Pressure test the gas supply system after the gas supply piping is connected to the gas valve. The supply piping must be disconnected from the gas valve during the testing of the piping systems when test pressure is in excess of 0,5 psig. Pressure test the gas supply piping system
at pressures equal to or less than 0.5 psig. The unit heating section must be isolated from the gas piping system by closing the external main manual shutoff valve and slightly opening the ground-joint union.
.... I0 ....
Table 2iphysical DataiUnit PY2P (Continued)
UNIT SIZE PY2P 048090 048115 048130 060090 060115 060130
NOMINAL CAPACITY (ton) 4 4 4 5 5 5
OPERATING WEIGHT (lb.) 421 421 421 468 468 468
COMPRESSORS Scroll
Quantity 1
REFRIGERANT (R-22) 8.3 8,3 8,3 8.1 8.1 8.1
Quantity (lb.)
REFRIGERANT METERING DEVICE Acutrol Device
Orifice ID (in.) .034 ,034 .034 ,032 .032 .032
CONDENSER COIL 2_.17 2_,17 2._17 2...17 2,,.17 2._17
Rows...Fins/in.
Face Area (sq ft) 12.3 12.3 12.3 16.4 16,4 16.4
CONDENSER FAN 3300 3300 3300 3300 3300 3300
Nominal Cfm 22 22 22 22 22 22
Diameter (in.)
Motor Hp (Rpm) ¼ (1100) 1/, (1100) ¼ (1100) ¼ (1100) 1/, (1100) ¼ (1100)
EVAPORATOR COIL 4,,.15 4..,15 4._15 4...15 4.,.15 4_.15
Rows...Fins/in. 4.7 4.7 4.7 4.7 4.7 4.7
Face Area (sq ft)
EVAPORATOR BLOWER 1600 1600 1600 1750 1750 1750
Nominal Airflow (Cfm) 11 X 10 11 X 10 11 X 10 11 X 10 11 X 10 11 X 10
Size (in.)
Motor Hp (Rpm) 3/4 (1075) 3/4 (1075) 3/4 (1075) 1.0 (1075) 1.0 (1075) 1.0 (1075)
FURNACE SECTION*
Burner Orifice No. (Qty._Drill Size) 3-.38 3.,,33 3._31 3_,38 3,-33 3_.31 Burner Orifice No. (Qty._Drill Size)
RETURN-AIR FILTERS (in.)1" 24 X 30 24 X 30 24 X 30 24 X 30 24 X 30 24 X 30
* Based on a_titudeof 0 to 2000 ft. t Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration Institute) rated cooling airflow or the heating airflow velocityof 300
if/minute for high-capacitytype. Air filter pressuredrop for non-standard filters mustnot exceed 0.06 in. wg.
Natural Gas 3_.46 3._42 3._41 3_.46 3...42 3_.41
Propane Gas
Throwaway
Table 3--Maximum Gas Flow Capacity*
NOMINAL INTERNAL LENGTH OF PIPE, FT t
IRON PIPE, DIAMETER
SIZE
(IN.) (IN.) 10 20 30 40 50 60 70 80 90 100 125 150 175 200
'/2 .622 175 120 97 82 73 66 61 57 53 50 44 40 -- -- _/, .824 360 250 200 170 151 138 125 118 110 103 93 84 77 72
1 1,049 680 465 375 320 285 260 240 220 205 195 175 160 145 135
1'/, 1,380 1400 950 770 600 580 530 490 460 430 400 360 325 300 280 1'/2 1,610 2100 1460 1180 990 900 810 750 690 650 620 550 500 460 430
* Capacity of pipe in cuft of gas per br for gas pressure of 0.5 psig or less. Pressure drop of 0.5-in. wg (based on a 0.60 specific gravity gas). Refer to Table C-4, National Fire Protection Association NFPA 54.
t This length includes an ordinary number of fittings.
TRAP OUTLET
1" rain.
2" rain,
COOOOg
Fig. 8iCondensate Trap
CAUTION: Unstable operation may occur when the gas valve and manifold assembly are forced out of position while
connecting improperly*routed rigid gas piping to the gas valve. Use a backup wrench when making connection to avoid strain on, or distortion of, the gas control piping.
.....]i .........
IN
TEE
I
3-MIN
I
Fig. 9--Sediment Trap
CAUTION: If a flexible conductor is required or allowed by the authority having jurisdiction, black iron pipe shall be
installed at the gas valve and shall extend a minimum of 2 in. outside the unit casing.
WARNING: Never use a match or other open flame when checking for gas leaks. Never purge gas line into combustion
chamber. Failure to follow this warning could result in an explosion causing serious injury or death.
C99020
8. Check for gas leaks at the field-installed and factoryqnstalled gas lines after all piping connections have been completed. Use soap-and-water solution (or method specified by local codes and/or regulations).
PROCEDURE 9--INSTALL DUCT CONNECTIONS
The unit has duct flanges on the supply- and return-air openings on the side and bottom of the unit. For downshot applications, the ductwork connects to the roof curb (See Fig. 2 and 3 for connections sizes and locations).
A. CONFIGURING UNITS FOR DOWNFLOW (VERTICAL) DISCHARGE
WARNING: Before performing service or maintenance operations on the system, turn off main power to unit. Electrical
shock could cause serious injury or death.
I. Open all electrical disconnects before starting any service work.
2. Remove return duct cover located on duct panel by breaking connecting tabs with screwdriver and a hammer (See Fig. 10A & 10B).
o
• o
/
;UPPLY RETURN
DUCT DUCT
OPENING OPENING
3. To remove supply duct cover, break fi'ont and right side connecting tabs with a screwdriver and a hammer. Push louver down to break rear and left side tabs (See Fig. 10A & 10B).
Fig. 10A Supply and Return Duct Opening
.... 12....
C99011
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