Iceco 90RJ Series Installation Instructions Manual Download Page 1

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92-24161-32-10

SUPERSEDES 92-24161-32-09

INSTALLATION INSTRUCTIONS

FOR UPFLOW & DOWNFLOW/HORIZONTAL HIGH
EFFICIENCY CONDENSING GAS FURNACES

90RJ AND 90TJ SERIES

U.L. recognized fuel gas and CO (carbon monoxide) detectors are recommended in all
applications, and their installation should be in accordance with the manufacturer’s
recommendations and/or local laws, rules, regulations, or customs.

Summary of Contents for 90RJ Series

Page 1: ...NTAL HIGH EFFICIENCY CONDENSING GAS FURNACES 90RJ AND 90TJ SERIES U L recognized fuel gas and CO carbon monoxide detectors are recommended in all applications and their installation should be in accor...

Page 2: ...diameter exhaust pipe ft of pipe intake air no of elbows intake air ft of pipe exhaust pipe no of elbows exhaust pipe Exhaust vent temp TERMINATIONS DIRECT VENT VERTICAL Intake 12 min above roof snow...

Page 3: ...own to the State of California to cause cancer or birth defects such as fiberglass insulation lead in brass and combustion products from natural gas All new equipment shipped for sale in California wi...

Page 4: ...B149 is available from CSA INTERNATIONAL 178 Rexdale Blvd Toronto Ontario Canada M9W 1R3 GENERAL INFORMATION FIGURE 1 UPFLOW FURNACE FIGURE 2 DOWNFLOW HORIZONTAL FURNACE ITEM ITEM NO PART NAME NO PART...

Page 5: ...TION RETURN AIR TEMPERATURE MAINTAINED BETWEEN 55 F 13 C AND 80 F 27 C AND CLEAN FURNACE DUCT WORK AND COMPONENTS UPON SUBSTANTIAL COMPLETION OF THE CONSTRUCTION PROCESS AND VERIFY FURNACE OPERATING C...

Page 6: ...TER HEATERS OR BOILERS ALL JOINTS SEAMS AND OPENINGS IN THE EQUIPMENT AND DUCT MUST ALSO BE SEALED TO PREVENT DEPRESSURIZATION OF THE SPACE AND POSSIBLE MIGRATION OF COMBUSTION BYPRODUCTS INCLUDING CA...

Page 7: ...DIRT DUST FUMES AND ODORS INTO THE HOME CAUSING PROPERTY DAMAGE FUMES AND ODORS FROM TOXIC VOLATILE OR FLAMMABLE CHEMICALS AS WELL AS AUTOMOBILE EXHAUST AND CARBON MONOXIDE CO CAN BE DRAWN INTO THE L...

Page 8: ...rator coil with this furnace a be sure the air passes over the heat exchanger before passing over the cooling coil The cooled air passing over the warm ambient air inside the heat exchanger tubes can...

Page 9: ...or crawl space installation it may be installed on combustible wood flooring or by using support brackets See Figure 5 5 IMPORTANT If installing in a utility room be sure the door is wide enough to a...

Page 10: ...32 15 5 8 2 15 13 25 32 0 0 0 1 2 0 117 07 17 1 2 16 11 32 15 5 8 2 15 13 25 32 0 0 0 1 2 0 123 09 21 19 27 32 19 1 8 2 18 1 2 17 9 32 0 0 0 1 2 0 148 10 21 19 27 32 19 1 8 2 18 1 2 17 9 32 0 0 0 1 2...

Page 11: ...0 117 07 17 1 2 16 11 32 15 5 8 2 16 5 8 13 7 8 0 0 0 1 2 0 123 09 21 19 11 32 19 3 16 2 20 1 8 17 3 8 0 0 0 1 2 0 148 10 21 19 11 32 19 3 16 2 20 1 8 17 3 8 0 0 0 1 2 0 152 12 24 1 2 23 11 32 22 5 8...

Page 12: ...2 16 5 8 13 7 8 0 0 0 1 2 0 123 07 21 19 27 32 19 3 16 2 20 1 8 17 3 8 0 0 0 1 2 0 123 09 21 19 27 32 19 3 16 2 20 1 8 17 3 8 0 0 0 1 2 0 148 10 21 19 27 32 19 3 16 2 20 1 8 17 3 8 0 0 0 1 2 0 152 12...

Page 13: ...osition the unit to minimize long runs of duct or runs of duct with many turns and elbows 2 Open the return air compartment UPFLOW FURNACE A SOLID METAL BASE PLATE MUST BE INSTALLED IN THE FURNACE BOT...

Page 14: ...a switch is tripped it must be manually reset DO NOT JUMPER THESE DEVICES IF ONE OF THESE SWITCHES SHOULD TRIP A QUALIFIED INSTALLER SERVICE AGENCY OR THE GAS SUPPLIER MUST BE CALLED TO CHECK AND OR...

Page 15: ...e will operate continuously 5 Test for spillage at the draft hood relief opening after 5 minutes of main burner operation Use the flame of a match or candle or smoke from a cigarette cigar or pipe 6 A...

Page 16: ...f the flue products and are highly corrosive after they condense ALL FURNACE INSTALLATIONS MUST COMPLY WITH THE NATIONAL FUEL GAS CODE AND LOCAL CODES TO PROVIDE ADEQUATE COMBUSTION AND VENTILATION AI...

Page 17: ...Area Round Pipe Input Each Opening Size 45 000 11 25 square inches 4 60 000 15 00 square inches 5 75 000 18 75 square inches 5 90 000 22 50 square inches 6 105 000 26 25 square inches 6 120 000 30 00...

Page 18: ...r spaces crawl or attic that freely communicate with the outdoors and shall have a minimum free area of a 1 square inch for each 3 000 BTUH of the total input rating of all equipment located in the en...

Page 19: ...minimum clearances to combustibles are maintained between the PVC pipe and other pipes 5 All vent runs through unconditioned spaces where below freezing temperatures are expected should be insulated...

Page 20: ...R IMPROPER LOCATION OR INSTALLATION CAN CAUSE STRUCTURAL OR EXTERIOR FINISH DAMAGE TO THE BUILDING Non direct venting location requirements are slightly different in some cases than direct venting Ins...

Page 21: ...21 FIGURE 17 OTHER THAN DIRECT VENT TERMINAL CLEARANCES Natural Gas and Propane Installation Code National Fuel Gas Code Canadian Installations US Installations Canadian Installations US Installations...

Page 22: ...minimum vent pipe length is 5 feet Size the exhaust and combustion air intake pipes as specified in Table 2 This table lists the maximum allow able length in feet of the exhaust and combustion air int...

Page 23: ...d horizontal intake air termination for all models is a 2 in PVC coupling with a wind deflector vane provided attached Cut a 21 4 in length of 2 in PVC pipe Connect this pipe and another 2 in PVC coup...

Page 24: ...ternate horizontal direct vent termination kits RXGY D02 1 2 in tee with reducer assembly 2 1 2 in PVC 6 in dia trap 3 PVC vane 4 2 in PVC elbow 5 11 2 in PVC nipple with coupling 6 PVC strap 7 vent t...

Page 25: ...UPPLIED E PVC RAINCAP E B A C D E B A C D CONCENTRIC TERMINATIONS VERTICAL HORIZONTAL CONCENTRIC VENT KIT NO RXGY E03 This kit is for vertical horizontal intake air vent runs and may be installed thro...

Page 26: ...THE LAST 12 INCHES WITH 11 2 PVC PIPE ON 45 000 THROUGH 75 000 BTUH MODELS SEE DETAIL A 6 30 MAXIMUM EXPOSED VENT LENGTH PITCHED ROOF INSTALLATIONS NOTES 1 SUPPORT HORIZONTAL PIPE EVERY FOUR FEET 2 W...

Page 27: ...27 FIGURE 22 DIRECT VENT TERMINAL CLEARANCES Natural Gas and Propane Installation Code National Fuel Gas Code Canadian Installations US Installations Canadian Installations US Installations...

Page 28: ...bustion air inlet minimum of 3 feet from the vent of any other gas or fuel burning appliance or clothes dryer to prevent recirculation of the flue gases into the furnace combustion air inlet The only...

Page 29: ...PERMITTED See Figures 24 and 25 for positioning of the terminations When more than two furnaces are to be vented there must be at least 4 feet between the first two furnaces and the third etc FIGURE...

Page 30: ...ons in wall To prevent possibility of condensate freeze up or recirculation do not install vent kits one above the other NOTE The vent illustration in Figure 27 can be used for Non direct vent termina...

Page 31: ...pe fitting extending through the right side of the furnace top cover This opening has a pro tective cap which should be removed just prior to installing the exhaust pipe When 2 in pipe is used con nec...

Page 32: ...drain or condensate pump IMPORTANT If installing the unit over a finished ceiling or living area be certain to install an auxiliary condensate drain pan under the entire unit extending out under the...

Page 33: ...rainage hoses from the trap Remove the trap from its mounting bracket rotate it 180 degrees and mount in place with the drainage elbow pointing to the left Reattach the drain hoses Remove the plug fro...

Page 34: ...plastic plugs on either side of the trap outlet hole and discard 4 Remove the L shaped clear vinyl drain tube from the top of the existing trap Do not disconnect the short end from the furnace collec...

Page 35: ...IGHT POSITION REMOVAL OF EXISTING DOWNFLOW CONDENSATE TRAP FIGURE 36 HORIZONTAL POSITION CONDENSATE TRAP INSTALLATION FOR HORIZONTAL OPERATION I534 CONDENSATE TRAP CONVERSION FROM DOWNFLOW TO HORIZONT...

Page 36: ...line directly from the meter to the furnace Consult the local gas company for the location of the manual main shut off valve The gas line and manual gas valve must be adequate in size to prevent undue...

Page 37: ...tion IMPORTANT ENSURE that the furnace gas control valve not be subjected to high gas line supply pressures DISCONNECT the furnace and its individual shut off valve from the gas supply piping during a...

Page 38: ...ts that use 10 of water column at the orifice This difference requires a deviation from the NFGC orifice size recommendations The Sea Level input should still be reduced by 4 per thousand ft and the o...

Page 39: ...the same gas line as the furnace 4 Note or adjust the line gas pressure to give A 5 10 5 w c for natural gas B 11 13 w c for LP gas 5 Shut off the gas at the manual gas valve and remove the U Tube ma...

Page 40: ...42 MANIFOLD PRESSURE READING FIGURE 43 UPFLOW GROUNDING CONNECTIONS JUNCTION BOX CONDENSATE TRAP CONTROL IS GROUNDED WHEN ATTACHED TO BLOWER LOW VOLTAGE TERMINALS IFC MOUNTING PLATE BLOWER COMPARTMEN...

Page 41: ...ncy and phase corresponds to that specified on the furnace rating plate For single furnace application maximum over current protection is 15 amperes Use a separate fused branch electrical circuit cont...

Page 42: ...mostat b The 24 VAC supply to both control boards must be in phase with each other c Connect the C W and TWIN terminals to counterparts on each control d Both control boards must have switch 3 in the...

Page 43: ...43 FIGURE 46 UT Electronic Controls 1028 928 CONTROL BOARD TWINNING CONNECTION SINGLE STAGE OPERATION Control Board 1 Control Board 2...

Page 44: ...44 FIGURE 47 UT ELECTRONIC CONTROLS 1028 928 CONTROL BOARD TWINNING CONNECTION TWO STAGE OPERATION Control Board 1 Control Board 2...

Page 45: ...gh altitude kit for proper operation The high altitude kit consists of a high altitude pressure switch that replaces the pressure switch attached to the induced draft blower The kit also contains gas...

Page 46: ...12 600 12 000 11 400 10 800 10 200 9 600 All calculations are performed by using the first three columns of information only Before beginning any calculations determine the individual burner Btu size...

Page 47: ...W C ALTITUDE INPUT OUTPUT ORIFICE SIZE MANIFOLD PRESSURE 0 2000 45 000 60 000 75 000 90 000 105 000 120 000 40 500 54 000 67 500 81 000 94 500 108 000 1 15mm 10 W C 2001 4500 40 500 54 000 67 500 81 0...

Page 48: ...rgized 4 If flame is not sensed during the 8th second after the gas valve opens the gas valve closes and the igniter de energizes 5 After a 10 second post purge the inducer stops and the control verif...

Page 49: ...INPUT RATE The furnace is shipped from the factory with 50 orifices They are sized for natural gas having a heating value of 1075 BTU cu ft and a specific gravity of 60 Since heating values vary geo g...

Page 50: ...emperature rise 5 Compare the measured temperature rise to the approved temperature rise range listed on the furnace name plate See Figure 50 If the measured temperature rise is above the approved ran...

Page 51: ...1210 1180 1150 1120 1075 1035 MED 1490 1465 1445 1405 1375 1315 1255 HIGH 1720 1670 1620 1600 1580 1520 1460 90TJ09 12 X 11 1 2 LOW 1155 1125 1100 1080 1060 1000 940 MED 1420 1400 1380 1365 1350 1260...

Page 52: ...gyback jumper H C to FAN and do not connect Y to the integrated furnace control Do not connect anything to H or C GAS FURNACE DIRECT DRIVE INSTRUCTIONS FOR CHANGING BLOWER SPEED DISCONNECT THE ELECTRI...

Page 53: ...the filters clean at all times Vacuum dirt from filter wash with detergent and water air dry thoroughly and reinstall NOTE Some filters must be resized to fit certain units and applications See Table...

Page 54: ...WS 2 REQ D ANGLE DETAIL CUT OUT AND DRILL DETAIL ROD FILTER SUPPORT ANGLE ASSEMBLY FILTER AND ROD ASSEMBLY FILTER ROD SUPPORT ANGLE FILTER SUPPORT ANGLE FILTER FILTER ROD JACKET I332 I413 UPFLOW I528...

Page 55: ...y filters can restrict airflow The motor depends upon sufficient air flowing across and through it to keep from overheating SYSTEM OPERATION INFORMATION Advise The Customer 1 Keep the air filters clea...

Page 56: ...uring ignition trial If yes go to F Did a limit open during ignition trial If yes go to D Check line voltage between HEAT and NEUTRAL on IFC Check wires connections and continuity between IFC and IBM...

Page 57: ...57 FIGURE 57 90RJ MODELS WITH UT ELECTRONIC CONTROLS 1012 925 OR INVENSYS CLIMATE CONTROLS ICC H1MC7 01 CONTROL BOARD HSI...

Page 58: ...58 FIGURE 58 90RJ MODELS WITH UT ELECTRONIC CONTROLS 1012 925 OR INVENSYS CLIMATE CONTROLS ICC H1MC7 01 CONTROL BOARD HSI...

Page 59: ...59...

Page 60: ...60 CM 0607 MANUFACTURED BY ICECO 5600 OLD GREENWOOD ROAD FORT SMITH ARKANSAS 72908...

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Iceco 90RJ Series, Installation Instructions Manual

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