FURNACE SPECIFICATIONS
14
1. These furnaces are manufactured for natural gas operation. Optional kits are available for conversion to propane operation.
2. For elevations above 2000 feet the rating should be reduced by 4% for each 1000 feet above sea level. The furnace must not be derated, orifice changes should
only be made if necessary for altitude.
3. The total heat loss from the structure as expressed in TOTAL BTU/HR must be calculated by the manufacturers method or in accordance with the "A.S.H.R.A.E.
GUIDE" or "MANUAL J-LOAD CALCULATIONS" published by the AIR CONDITIONING CONTRACTORS OF AMERICA. The total heat loss calculated should be
equal to or less than the heating capacity. Output based on D.O.E. test procedures.
4. Minimum Circuit Ampacity calculated as: (1.25 x Circulator Blower Amps) + I.D. Blower Amps.
Unit specifications are subject to change without notice. ALWAYS refer to the units serial plate for the most up-to-date general and electrical information.
(1)
Wire size should be determined in accordance with National Electrical Codes. Extensive wire runs will require larger wire sizes.
(2)
Maximum Overcurrent Protection Device: May use Time Delay Fuse or HACR type Circuit Breaker of the same size as noted.
(3)
Off Heating - this fan delay timing is adjustable (90, 120, 150 and 180 seconds). Furnaces are shipped with 150 second off delay.
(4)
See Installation Instructions for appropriate vent diameter, length and number of elbows.
(5)
See Installation Instructions for appropriate combustion air pipe diameter, length and number of elbows.
MODEL
GMV950453BX* GMV950704CX* GMV950905DX* GMV951155DX*
Btuh Input (US) High Fire 46,000 69,000 92,000 115,000
Output (US) High Fire 44,300 66,900 88,800 111,100
Btuh Input (US) Low Fire 32,000 48,000 64,000 80,000
Output (US) Low Fire 30,800 46,400 61,700 77,400
A.F.U.E. 95.0% 95.0% 95.0% 95.0%
Rated External Static (" w.c.) .10 - .50 .10 - .50 .10 - .50 .10 - .50
Temperature Rise (°F) 30 - 60 30 - 60 30 - 60 35 - 65
High Stage Pressure Switch Trip Point (" w.c.) -0.75 -0.75 -1.10 -1.10
Low Stage Pressure Switch Trip Point (" w.c.) -0.30 -0.30 -0.50 -0.50
Front Cover Pressure Switch Trip Point (" w.c) -0.10 -0.10 -0.10 -0.10
Blower Wheel (D" x W") 10 x 7 10 x 10 11 x 10 11 x 10
Blower Horsepower 1/2 3/4 1 1
Blower Speeds
Max CFM @ 0.5 E.S.P.
Power Supply 115-60-1 115-60-1 115-60-1 115-60-1
Minimum Circuit Ampacity (MCA) 10.4 12.8 14.6 14.6
Maximum Overcurrent Device 15 15 15 15
Transformer (VA) 40 40 40 40
Heat Anticipator (Amps) 0.7 0.7 0.7 0.7
Primary Limit Setting (°F) 145 155 145 150
Auxiliary Limit Setting (°F) 150 190 180 200
Rollout Limit Setting (°F) 170 200 190 200
Fan Delay On Heating 30 secs. 30 secs. 30 secs. 30 secs.
Off Heating * 150 secs. 150 secs. 150 secs. 150 secs.
Fan Delay On Cooling 5 secs. 5 secs. 5 secs. 5 secs.
Off Cooling 45 secs. 45 secs. 45 secs. 45 secs.
Fan Delay On - Fan Only 5 secs. 5 secs. 5 secs. 5 secs.
Gas Supply Pressure (Natural/Propane) (" w.c.) 7 / 11 7 / 11 7 / 11 7 / 11
Manifold Pressure (Natural/Propane) High Stage (" w.c.) 3.5 / 10 3.5 / 10 3.5 /10 3.5 /10
Manifold Pressure (Natural/Propane) Low Stage ("w.c.) 1.9 / 6.0 1.9 / 6.0 1.9 / 6.0 1.9 / 6.0
Orifice Size (Natural/Propane) #43 / #55 #43 / #55 #43 / #55 #43 / #55
Number of Burners 2 3 4 5
Vent Connector Diameter (inches) 2 2 3 3
Combustion Air Connector Diameter (inches) 2 2 3 3
Shipping Weight (lbs.) 133 135 172 175
Refer to airflow charts on pages 16-18.
GMV95
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