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ICP PGN324 Installation instructions manual

Manual is about: PGN3 Series PACKAGED GAS / ELECTRIC UNITS

Summary of PGN324

  • Page 1

    Printed in u.S.A. 462 01 1901 01 01--28--08 packaged gas / electric units installation instructions pgn3 series single phase international comfort products, llc lewisburg, tn. 37091 table of contents page safe installation requirements 2 . . . . . . . . Introduction 3 . . . . . . . . . . . . . . . ....

  • Page 2

    2 safe installation requirements figure 1 pgn3 gas / electric unit installation and servicing of this equipment can be hazardous due to mechanical and electrical components. Only trained and qualified personnel should install, repair, or service this equipment. Untrained personnel can perform basic ...

  • Page 3: Caution

    3 • all connecting ductwork to the unit (supply and return) must be sealed to the unit casing as specified in section 7. • do not use this furnace as a construction heater. • check to see that filters are installed correctly and are the proper type an size. Note: it is the personal responsibility an...

  • Page 4

    4 required clearance for operation and servicing inches [mm] evap. Coil access side............................................................36.00 [914.0] power entry side....................................................................42.00 [1066.8] (except for nec requirements) unit top ........

  • Page 5

    5 figure 4 pgn342--60 dimensions required clearance for operation and servicing inches [mm] evap. Coil access side............................................................36.00 [914.0] power entry side....................................................................42.00 [1066.8] (except for n...

  • Page 6: Warning

    6 table 1—filter data-- pgn324--60 unit size 024040 024060 030040 030060 036060 036090 042060 042090 return--air filters (in.)† throwaway 20x24x1 20x24x1 20x24x1 20x24x1 20x24x1 20x24x1 24x36x1 24x36x1 unit size 048090 048115 048130 060090 060115 060130 return--air filters (in.)† throwaway 24x36x1 2...

  • Page 7: Warning

    7 property damage hazard failure to follow this warning could result in personal injury/death or property damage. Do not strip screws when re--securing the unit. If a screw is stripped, replace the stripped one with a larger diameter screw (included). When straps are taut, the clevis should be a min...

  • Page 8: Warning

    8 step 6—connect condensate drain note: when installing condensate drain connection be sure to comply with local codes and restrictions. The pgn3 disposes of condensate water through a 3/4 in. Npt fitting which exits through the base on the evaporator coil access side. See fig. 3 & 4 for location. C...

  • Page 9: Warning

    9 use only pipe dope that is resistant to action of liquefied petroleum gases as specified by local and/or national codes. Never use teflon tape. 4. Install sediment trap in riser leading to heating section (see fig. 7). This drip leg functions as a trap for dirt and condensate. 5. Install an access...

  • Page 10: Warning

    10 step 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. 3 and 4 for connection sizes and locations). Configuring units for downflow (vertical)...

  • Page 11: Warning

    11 conditioning contractors national association (smacna) and air conditioning contractors of america (acca) minimum installation standards for heating and air conditioning systems. Secure all ducts to building structure. 7. Flash, weatherproof, and vibration isolate all openings in building structu...

  • Page 12: Warning

    12 run the low--voltage leads from the thermostat, through the inlet hole, and into unit low--voltage splice box. Locate five 18--gage wires leaving control box. These low--voltage connection leads can be identified by the colors red, green, yellow, brown, and white (see fig. 10). Ensure the leads a...

  • Page 13: Warning

    13 fire, explosion hazard failure to follow this warning could result in personal injury, death or property damage. Do not purge gas supply into the combustion chamber. Do not use a match or other open flame to check for gas leaks. ! Warning 4. Verify the following conditions: a. Make sure gas line ...

  • Page 14: Caution

    14 check heating control start and check the unit for proper heating control operation as follows (see furnace lighting instructions located inside burner or blower access panel): 1. Place room thermostat system switch in the heat position and the fan switch is placed in auto position. 2. Set the he...

  • Page 15: Warning

    15 1. 32 sec. To complete one revolution. 2. 3600 p 32 = 112.5. 3. 112.5 x 1 =112.5 ft 3 of gas flow/hr. 4. 112.5 x 1050 = 118,125 btuh input. If the desired gas input is 115,000 btuh, only a minor change in the manifold pressure is required. Observe manifold pressure and proceed as follows to adjus...

  • Page 16

    16 figure 14 pgn324--60 wiring diagram.

  • Page 17: Warning

    17 led monitor an led (light--emitting diode) indicator is provided on the control board to monitor operation. The control board is located by removing the burner access panel. During normal operation, the led is continuously on (see table 4 for error codes). Table 3— led indications error code led ...

  • Page 18: Caution

    18 unit damage and environmental hazard failure to follow this caution may result in unit damage. 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 somewh...

  • Page 19: Caution

    19 indoor airflow and airflow adjustments unit operation hazard failure to follow this caution may result in unit damage. For cooling operation, the recommended airflow is 350 to 450 cfm for each 12,000 btuh of rated cooling capacity. For heating operation, the airflow must produce a temperature ris...

  • Page 20: Warning

    20 the minimum maintenance requirements for this equipment are as follows: 1. Inspect air filter(s) each month. Clean or replace when necessary. 2. Inspect indoor coil, drain pan, and condensate drain each cooling season for cleanliness. Clean when necessary. 3. Inspect blower motor and wheel for cl...

  • Page 21

    21 burner ignition unit is equipped with a direct spark ignition 100 percent lockout system. Ignition module is located in the control box (see fig. 15).Module contains a self--diagnostic led. During servicing, refer to label diagram for led interpretation. If lockout occurs, unit may be reset by ei...

  • Page 22: Caution

    22 figure 18 burner rack removed outdoor fan unit operation hazard failure to follow this caution may result in damage to unit components. Keep the condenser fan free from all obstructions to ensure proper cooling operation. Never place articles on top of the unit. Caution ! 1. Remove 6 screws holdi...

  • Page 23

    23 table 7—dry coil air delivery* -- horizontal and downflow discharge -- unit pgn324--060 (deduct 10% for 208 volts) unit heating rise range o f (_c) motor speed external static pressure (in. Wc) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 pgn324040 20 -- 50 (11 -- 28) low 1 watts 311 309 304 301 286 290 2...

  • Page 24

    24 table 8 con’t—dry coil air delivery* -- horizontal and downflow discharge -- unit pgn324--060 (deduct 10% for 208 volts) unit heating rise range o f (_c) motor speed external static pressure (in. Wc) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 pgn336090 40 -- 70 (22 -- 39 ) low watts 439 429 415 401 395 ...

  • Page 25

    25 table 8 con’t—dry coil air delivery* -- horizontal and downflow discharge -- unit pgn324--060 (deduct 10% for 208 volts) unit heating rise range o f (_c) motor speed external static pressure (in. Wc) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 pgn360090 25 -- 55 (14 -- 31) low 1 watts 786 769 754 736 722...

  • Page 26

    26 table 9— troubleshooting chart symptom cause remedy compressor and condenser fan will not start. Power failure call power company fuse blown or circuit breaker tripped replace fuse or reset circuit breaker defective contactor, transformer, or high--pres- sure, loss--of--charge or low--pressure sw...

  • Page 27

    27 table 10— troubleshooting guide–heating symptom cause remedy burners will not ignite water in gas line drain. Install drip leg. No power to furnace check power supply fuses, wiring or circuit breaker. No 20--v power supply to control circuit check transformer. Note: some transformers have interna...

  • Page 28

    28 symptom cause remedy rollout switch fault (led 7 flashes) rollout switch has opened. Rollout switch will automatically reset, but igc* will continue to lockout unit. Check gas valve operation. Ensure that induced--draft blower wheel is properly secured to motor shaft. Inspect heat exchanger. Re- ...

  • Page 29

    29 start-up checklist (remove and store in job file) i. Preliminary information model no.:_________________________________ serial no.:__________________________________ date:_______________________________________ technician:_________________________________ ii. Pre-start-up (insert checkmark in bo...