York G8C Series, Installation Instructions Manual

Page 1: ...OSITION 50 125 MBH Models 4 INSTALLATION POSITION 150 MBH Models 4 CONVERSION INFORMATION 50 125 MBH Models 4 TO CONVERT FROM DOWNFLOW TO UPFLOW CONFIGURATION 50 125 MBH Models 4 TO CONVERT FROM UPFLO...

Page 2: ...aning compounds plastic items or con tainers gasoline kerosene cigarette lighter fluid dry cleaning fluids or other volatile fluid 3 Paint thinners and other painting com pounds 4 Paper bags boxes or...

Page 3: ...000 60 000 1200 17 1 2 10 x 8 35 65 165 1 3 4 1FB0318 75 000 60 000 1600 21 10 x 10 30 60 160 1 2 4 1FB0319 100 000 80 000 1600 21 10 x 10 40 70 170 1 2 4 1FB0319 100 000 80 000 2000 24 1 2 2 10 x 6...

Page 4: ...conversion instructions starting on Page 5 and Page 6 INSTALLATION POSITION 150 MBH Models This furnace may be installed in an upflow or horizontal poi sion No conversion is necessary CONVERSION INFO...

Page 5: ...ion on the vent blower using the three screws supplied on the vent blower See Figure 4 10 Rotate the vent blower 180 so that its outlet points toward the inlet air end of the furnace See Figure 3 11 L...

Page 6: ...to any combustible mate rials must be maintained These required minimum clear ances are shown below and on a label in the furnace Minimum Clearances Upflow Front 2 inches Back 0 inches Sides 0 inches...

Page 7: ...the furnace If all air is from inside building the total free area of each opening must be at least one square inch for each 1 000 BTUH of furnace input but not less than 100 square inches If all air...

Page 8: ...ply air duct attached to the furnace be provided with a removable access panel The opening should be accessible when the furnace is installed in service and should be large enough that smoke or reflec...

Page 9: ...uired depending on the capacity of the air conditioner and the air flow required The return air opening in the top of the furnace is large enough for the largest capacity air conditioner for which the...

Page 10: ...ecifics It is recommended that a gas cock shutoff valve be installed in the gas supply line outside the casing where it is readily accessible as close to the furnace as is practicable as shown in Figu...

Page 11: ...ALVE PRESSURE SWITCH VENT VENT PIPE TRANSITION GAS PIPE 3 DIAMETER VENT PIPE GAS SHUT OFF VALVE ROLL OUT SWITCH DIRT LEG VENT BLOWER FURNACE CONTROL FIGURE 10 UPFLOW CONFIGURATION 50 125 MBH MODELS ON...

Page 12: ...n the limits shown FIGURE 11 UPFLOW HORIZONTAL 150 MBH MODEL ONLY BLOWER DOOR SWITCH ROLL OUT SWITCHES BURNERS HOT SURFACE IGNITOR GAS VALVE PRESSURE SWITCH GAS PIPE GAS SHUT OFF VALVE ROLL OUT SWITCH...

Page 13: ...nd fastened to the furnace flue collar using screws where required 9 Joints in the vent pipe must be securely made and any horizontal run of the vent pipe must be supported less than one support every...

Page 14: ...rtical portion of the chimney or vent above the connector A vent connector must not pass through any ceiling floor firewall or fire partition A single wall metal pipe vent connec tor must not pass thr...

Page 15: ...a device that keeps the power venter in operation for a short period at the end of each burner cycle in order to clear out all flue gases from the vent Manufacturers of power ven ters also can supply...

Page 16: ...he furnace The furnace control board has a ter minal marked TWIN which can be used to cause two furnace blowers to operate together If two furnaces are to be twinned using a single wall thermo stat co...

Page 17: ...TAP EXTERNAL STATIC PRESSURE INCHES W C 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 50 40 1200 75 60 1200 HIGH 1407 1367 1315 1279 1211 1138 1053 961 MED 1141 1130 1092 1059 1009 945 876 782 LOW 885 894 8...

Page 18: ...r shorted wires bad pressure switch Three flashes Pressure switch failed to close Check vent blower pressure switch vent blockage disconnected pres sure hose Four flashes Limit switch open Check for o...

Page 19: ...mally open pressure switch contacts 3 As the vent blower increases in speed the contacts of the pressure switch will close and complete the electrical circuit to the ignitor 4 During the next 30 secon...

Page 20: ...not reach your gas supplier call the fire department 3 USE ONLY YOUR HAND TO MOVE THE GAS CON TROL LEVER OR SWITCH NEVER USE TOOLS IF THE LEVER OR SWITCH WILL NOT MOVE BY HAND DON T TRY TO REPAIR IT...

Page 21: ...t is necessary to achieve the correct input rate use the following formula GAS VALUE X 3600 DESIRED INPUT SECONDS NEEDED Example 1000 BTU gas furnace input 100 000 BTUH Seconds for one cubic foot 1000...

Page 22: ...g of the heat exchanger and flue gas pas sageways is not necessary and is not recommended under normal circumstances REPLACEMENT PARTS Should it be necessary to replace any component parts these may b...

Page 23: ...Ignitor Bracket 15 Gas Orifice 16 Door Switch 17 Capacitor 18 Blower Wheel 19 Blower Motor 20 Sensor Rod 21 Blower Motor Clamp 22 Rubber Motor Mounts 23 Transition 24 Rollout Switch Bracket 25 Door La...

Page 24: ...hout notice Printed in U S A 035 15241 003 Rev A 201 Copyright by York International Corp 2001 All rights reserved Supersedes 035 15241 002 Rev A 800 Unitary 5005 Norman Products York OK Group Drive 7...