Table of Contents
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Owner's Manual
Installation Instructions
PDX4 Series
PACKAGED
DUAL FUEL UNITS
TABLEOF CONTENTS
UNITDIMENSIONS ......................................
2 - 4
SAFEINSTALLATIONREQUIREMENTS .........................
5
LOCATING THE UNIT .......................................
6
CLEARANCES ............................................
6
INSTALLATION............................................
6
GROUNDLEVELINSTALLATION ..............................
7
HOISTING................................................
7
DOWNFLOWCONVERSION ..................................
7
HEATINGVENTASSEMBLY ..................................
7
CONDENSATEDRAIN.......................................
8
PRE-EXISTINGCOMMONVENTCHECK .........................
8
GAS SUPPLYAND PIPING ...................................
8
ORIFICES ...............................................
9
ELECTRICALWIRtNG..................................
11
DUCTWORK .........................................
13
FILTERS ............................................
14
AIRFLOWADJUSTMENT ...............................
15
START-UPPROCEDURES ..............................
16
GAS PRESSURES ....................................
16
GAS HEATING START-UPPROCEDURES ..................
17
OPERATION .........................................
18
MAINTENANCE ......................................
20
INSPECTIONAND CLEANING............................
21
COMPONENTLOCATION ...............................
22
RIGGING ...........................................
23
WIRING DIAGRAMS ................................
24- 25
CQUS
LISTED
InternationalComfortProducts,LLC
Lewisburg,TN. 37091
518 01 1801 00
12-08-06
Printed in U.S.A.
Code: PDX4
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Related Manuals for ICP PDX424040K00A1
Summary of Contents for ICP PDX424040K00A1
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Page 1: Table Of Contents
Installation Instructions PDX4 Series PACKAGED DUAL FUEL UNITS TABLEOF CONTENTS UNITDIMENSIONS ........2 - 4 ELECTRICALWIRtNG........DUCTWORK ......... SAFEINSTALLATIONREQUIREMENTS ......LOCATING THE UNIT ........FILTERS ..........CLEARANCES ..........AIRFLOWADJUSTMENT ....... INSTALLATION..........START-UPPROCEDURES ......GROUNDLEVELINSTALLATION ......GAS PRESSURES ........HOISTING..........GAS HEATING START-UPPROCEDURES ....DOWNFLOWCONVERSION ........ -
Page 2: Unitdimensions
"B" CHASSIS UNIT DIMENSIONS 1. Unit Dimensions Units in "B" Chassis Configuration COMBINATION GAS/ PDX424 - 30 ELECTRIC UNITS "B" Chassis DIM. 32-1/2 _ _,_,_-_"_._"_. 47-3/8 I 1203 f(_d((_'_%_ 47-3/8 1203 _ _N_.._.___._/ "_ 3-1/8 I _" _"___ ./i" 11-1/8 12 I 308 14-1/4 14-1/4... -
Page 3: Combination Gas
"C" CHASSIS UNIT DIMENSIONS ECTRICAL POWER CONDUIT ('l(" DIM.) 2-3/8" VOLTAGE 1/2" (12.7) CONDUIT CONNECTION 1/2" (12.7) PIPE 3i (75) 1-3/8" 25-1/16" (97.1) 3-13/16" COMBINATION GAS/ ELECTRIC UNITS "C" Chassis (473/8 x 73) INCHE8 _41LLOMEYER8 47-3/8 1203 1354 4-5/8 18-3/4 18-3/4 1 &1-1/4 25&31... -
Page 4: Electric Units
"C+" CHASSIS UNIT DIMENSIONS ECTRICAL POWER CONDUIT ('K" DIM.) VOLTAGE _/2" (12.7) CONDUIT 3" (75) CONNECTION 1/2" (12.7) PIPE 1-3/8" 31-1/16" "C" (789 4) (97.1) (2_79,7) 3-13/16" COMBINATION GAS/ ELECTRIC UNITS "C" Chassis (473/8 x 73) INOHE8 MILL_MEYER8 1067 47-3/8 1203 1354 4-5/8... -
Page 5: Safeinstallationrequirements
2. SAFE INSTALLATION REQUIREMENTS FIRE, EXPLOSION, ELECTRICAL SHOCK, AND CARBON Installation and servicing of air-conditioning equipment can MONOXIDE POISON HAZARD be hazardous due to system pressure and electrical Failure to carefully read and follow all instructions in this components. Only trained and qualified personnel should manual could result in furnace malfunction, property install, repair, or service air-conditioning equipment. -
Page 6: Locating The Unit
Unitsmaybeinstalled either o na rooftop, cement s lab,or roof covering material) ..... 0" directly onthegroundiflocal c odespermit. Models w itha'l" inthetwelfth position ofthemodel n umber FIGURE 1 Minimum Clearances and Access Panels B Chassis Shown) are dedicatedLow NOx units designedfor California installations. -
Page 7: Hoisting
NOTE: All access panels MUST be secured in place before hoisting. FIGURE 3 Heating Vent Assembly The unit should be hoisted with two lifting slings. Attach the Flue Support slings to rigging shackles that have been hooked through (Shipped mounted to unit holes in the base rail, Two spreader bars MUST be placed on top of the unit to Flue Cover... -
Page 8: Pre-Existingcommonventcheck
4. PRE-EXISTING COMMON VENT CHECK I Gas Pipe Size, Length and Btu/hr Capacity FIGURE 5 for Schedule 40 Iron Pipe tEn_llish/ If the installation of this new combination gas heat/electric NATURAL GAS cool unit involves removing an existing gas-fired furnace Btu/hr (in thousands) Pipe Length from... -
Page 9: Orifices
previously serviced another gas appliance. Always use a LEAK CHECK/PRESSURE TESTING OF GAS SUPPLY new listed connector. PIPING FIRE OR EXPLOSION HAZARD FIRE OR EXPLOSION HAZARD Failure to do so could result in personal injury, death Failure to follow the safety warnings could result in per- and/or property damage. - Page 10 Table I NATURAL GAS MANIFOLD PRESSURE ("w c ) MEAN ELEVATION FEET ABOVE SEA LEVEL 0 to 2001 to 300I to 4001 to 500I to 6001 to 700I to 6001 to 9001 to HEATING 2000 3000 4000 5000 6000 7000 8000 9000 10000...
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Page 11: Electricalwirtng
6. ELECTRICAL WIRING FIGURE 7 i Removing NOx Baffles ELECTRICAL SHOCK HAZARD. Failure to follow this warning could result in personal injury, death, and/or property damage. unit cabinet must have uninterrupted, unbroken electrical ground to minimize the possibility of serious injury if an electrical fault should occur. This ground consist... - Page 12 LineVoltageWiring is the presence of 24V to the violet-colored pigtail. Approved thermostats that have the "DH" terminal are Connections forlinevoltage aremade intheunit c ontrol box available through your distributor area. R efer t owiringdiagram located ontheBurner A ccess panel. F oraccess, r emove theburner access panel. THERMOSTAT HEAT ANTICIPATOR 1.Runthehigh voltage (L1,L2)andground leads intothe...
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Page 13: Ductwork
Example: A PDX442080 is installed in a residence where Load Balance Point Temperature the electrical utility cost is 9 cents per kilowatt-hour and the load balance point temperature is the outdoor gas cost is 90 cents per therm. Proceed as follows: temperature at which the load may be met using either heat 1. -
Page 14: Filters
sidecasing ofthe unitanddonotinterfere withremoval of thetopofthe unit. REDUCED EQUIPMENT LIFE HAZARD FILTERS Failure to follow this caution may result in improper Allreturn airMUST passthrough afilterbefore entering the unit operation, unit.Anelectronic a ircleaner, optional filterracks, o rother accessible f ilterarrangement must b einstalled inthereturn Do not operate the unit without a filter. -
Page 15: Airflowadjustment
8. AIRFLOW ADJUSTMENT Figure 13 Airflow Adjustment High Stage Heating Low Stage Heating Ext. Static Pressure (in we) Ext. Static Pressure (in wc) .1" ~ .7" .1" ~ .7" Heating Rise Cooling Model Tons Heating Rise (°F) Heating Rise (°F) Range(°F) PDX424040 25-55... -
Page 16: Start-Upprocedures
CIRCULATING AIR BLOWER SPEEDS CHECK BEFORE STARTING 1. Check that the blower motor speed terminal block is running the correct heating and cooling speeds. ELECTRICAL SHOCK HAZARD. 2. Check to see that clean, properly sized air filters are Failure to follow this warning could result in personal installed. -
Page 17: Gas Heating Start-Upprocedures
2.Turn gas ON. Temporarilyset balance point GAS HEATING START-UP PROCEDURE temperature warm enoughto lock out heat pump 1. Temporarily set balance point warm enough to lock out operation. Change thermostat to HEATmodeand heat pump. Adjust thermostat setting above room adjust t emperature setpoint t oatleast 7 degrees a bove temperature and set thermostat selector to HEAT. -
Page 18: Operation
Divide number of seconds in step 4 into 3600 (number be necessary to change the blower speed. A faster blower of seconds in 1 hour). speed will decrease the temperature rise. A slower blower speed will increase the temperature rise. Multiply result of step 5 by the number of cubic feet NOTE: The blower speed MUST be set to give the correct shown for one revolution of the meter dial to obtain the... -
Page 19: Listed
Alert Diagnostics device provides around-the-clock high?stage operation. The Comfort Alert Diagnostics monitoring for common electrical problems, compressor device device operates by monitoring the compressor defects, and broad system faults. power leads and the thermostat demand signals Y (Y1) and If trouble is detected, an alert code is displayed with a Y2 terminals. -
Page 20: Maintenance
1.The backup defrost terminate time is fixed at 10 HEATING SEASON CHECKS (MONTHLY) minutes. Main Burner Flame 2. The compressor recycle delay timer is 5 minutes. Flames should be stable and solid blue, (dust may cause 3. The power interrupt response is minimum 17 msec. to orange tips or they may have wisps of yellow, but they maximum 35 msec. -
Page 21: Inspectionand Cleaning
Condenser Fan Motor INSPECTION AND CLEANING OF BURNER ASSEMBLY/HEAT EXCHANGERS/FLUE Note: The condenser fan motor is permanently lubricated. PASSAGES No further lubrication is required. Do not attempt to lubricate the condenser fan motor. For Qualified Service Technician Only See Figure 19 for identification of parts. VENT ASSEMBLY 1. -
Page 22: Componentlocation
Figure 19 Component Locations I Remote Sparker Unit I ..• I Flame Sensor I GasValve I I Re,,eut Switch ] Selector Leads I IFM and Speed I Primary Limit Switch 1221... -
Page 23: Rigging
12. Rigging Instructions Figure 20 Rigging Instructions iI . '' P--_ <::_ L-LJ L..._ ___1 @=:7>-- 222) ._iz: __z_... -
Page 24: Wiring Diagrams
USE COPPER CONDUCTORS ONlY FIELD SUPPLY _os/2soVAC "_j_l, 60HZ, /PN CONTACPS CRANKCASE BEATER M,/vv, COMFORT A ERT BOARD HP81 ......................ROST BOARD 24 _ 30 S]ZE UN1TS ONL_ NA_UAL RESEI / ....IRANS FURNAC CON}RO BOARD > CO_IBUST i ON AN PRESSURE SW[TCN PRIMARY IINIT GAS VALVE... -
Page 25: S 12-1/4
All Models Wiring Diagram L/\}[}/R W/I:R}N{} DIAG/i/\M USE COPPERCONDUCTORS O NLY G/'Y FIE [) SUPP Y ..| 208/250 VAC, 60 PZ, P/! CONTACTS CRANKCASE HEATER CONTACTS S @C2_d2_E_ _R @ ¢A8 MOTOR ,,,_ VOL]AGE }COM,FCB IERM]NAT[ON TB2,00 Tt2, ......