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TECHNICAL GUIDE
80 AFUE
MULTI-POSITION
GAS FURNACES
MODELS: G8C SERIES
4-POSITION
50-125 MBH INPUT
3-POSITION
150 MBH INPUT
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
®
EFFICIENCY
RATING
CERTIFIED
DESCRIPTION
These compact units (31-1/2" high) employ induced combus-
tion, reliable electronic ignition and high heat transfer heat
exchangers. The units may be factory shipped for upflow/hor-
izontal application and converted for downflow application.
These units may alsp be factory shipped for downflow appli-
cation and converted for upflow/horizontal applications
Note: The 150 MBH input model is upflow/horizontal only and
may not be converted to the downflow position.
These furnaces are designed for residential installation in a
basement, closet, alcove, attic, or garage. All units are factory
assembled, wired and tested to assure safe dependable and
economical installation and operation.
These units are Category I listed and may be common vented
with another gas appliance as allowed by the National Fuel
Gas Code.
WARRANTY
20-year limited warranty on the heat exchanger.
5-year limited parts warranty.
FEATURES
• 4-position (MU) upflow models allow horizontal-left, hori-
zontal-right, downflow and convertible applications
• 4-position (MD) models allow downflow and convertible
upflow/horizontal applications
• 3-position (UH) 150 MBH input model allows upflow, hori-
zontal-left and horizontal-right application
• Reliable, hot surface ignitor
• Integrated control module for simplicity and reliable, eco-
nomical operation
• Built-in self-diagnostics with fault code display
• 100% shut off main gas valve for added safety
• Rollout safety control
• Low unit amp requirement for easy application
• High quality inducer motor for quiet operation
• 40 VA, fuse protected control transformer
• Terminals for controlling humidifiers and EAC's
• Easy to connect power and control wiring
• Efficiency ratings of 80 AFUE
• Cooling blower relay supplied for easy installation of add-
on cooling
• Blower off-delay for cooling SEER improvement
• Multi-speed PSC, direct-drive blower motors to match
cooling requirements
• Adjustable fan-off settings to eliminate "cold-blow"
• Compact 31-1/2-in height allows installation in small space
confines
• All models are propane convertible
• Prepainted exterior provides attractive, durable finish
• Models are not approved for LoNox applications
036-21120-001 Rev. A (201)
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Summary of Contents for York G8C SERIES
- Page 1 These units are Category I listed and may be common vented MULTI-POSITION with another gas appliance as allowed by the National Fuel GAS FURNACES Gas Code. WARRANTY MODELS: G8C SERIES 20-year limited warranty on the heat exchanger. 5-year limited parts warranty. 4-POSITION 50-125 MBH INPUT FEATURES •...
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Page 2: Furnace Dimensions
036-21120-001 Rev. A (201) YORK UPFLOW DOWNFLOW 16-1/4 31-1/2 31-1/2 29-3/4 29-3/4 BOTTOM VIEW BOTTOM VIEW FURNACE DIMENSIONS MODEL K (VENT) G8C05012MUB11 17-1/2 16-1/2 20-3/8 14-3/4 18-3/4 15-1/8 G8C07512MUB11 17-1/2 16-1/2 20-3/8 14-3/4 18-3/4 15-1/8 G8C07516MUC11 20-3/8 19-1/2 18-1/4 18-3/4... -
Page 3: Blower Performance
YORK 036-21120-001 Rev. A (201) BLOWER PERFORMANCE UPFLOW, SINGLE SIDE RETURN APPLICATIONS EXTERNAL STATIC PRESSURE, INCHES W.C. SPEED MODEL 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 HIGH 1338 1309 1267 1220 1144 1070 G8C05012MUB11 1106 1092 1081 1048 G8C07512MUB11... -
Page 4: Unit Clearances To Combustibles
21" "C" Cabinets 1BR0316 dealer personnel. 24-1/2" "D" Cabinets 1BR0320 Subject to change without notice. Printed in U.S.A. 036-21120-001 Rev. A (201) Copyright © by York International Corp. 2001. All rights reserved Supersedes: 650.66-TG2Y (998) Unitary 5005 Norman Products York...