FURNACE SPECIFICATIONS
1.
These furnaces are manufactured for natural gas operation. Optional Kits are available for conversion to propane gas operation.
2.
For elevations above 2000 ft. the rating should be reduced by 4% for each 1000 ft. 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 manufactures method 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, steady state efficiency times
output.
4.
Minimum Circuit Ampacity calculated as: (1.25 x Circulator Blower Amps) + I.D. Blower Amps.
14
GMVC95
MOD E L
GM VC950453BX * GM V C950704CX* GM VC950905DX * GM V C951155DX*
B tuh Input (US) High Fire
46,000
69,000
92,000
115,000
Output (US) High Fire
44,300
66,900
88,800
111,100
B tuh 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 .
96%
95.5%
95.7%
95.8%
Rated E xternal S tatic (" w.c .)
.10 - .50
.10 - .50
.10 - .50
.10 - .50
Tem perature Rise (°F)
30 - 60
30 - 60
30 - 60
35 - 65
High Stage P ress ure S witc h Trip Point (" w.c .)
-0.75
-0.75
-1.10
-1.10
Low S tage P res s ure S witch Trip P oint (" w.c .)
-0.30
-0.30
-0.50
-0.50
Front Cover P res s ure S witch Trip P oint (" w.c )
-0.10
-0.10
-0.10
-0.10
B lower W heel (D" x W ")
10 x 8
10 x 10
11 x 10
11 x 10
B lower Hors epower
1/2
3/4
1
1
B lower S peeds
M ax CFM @ 0.5 E.S .P .
P ower Supply
115-60-1
115-60-1
115-60-1
115-60-1
M inim um Circ uit A m pac ity (M CA )
11.3
14.1
17.9
17.9
M ax im um Overc urrent Device
15
15
20
20
Trans form er (VA )
40
40
40
40
Heat A ntic ipator (A m ps )
0.7
0.7
0.7
0.7
P rim ary Lim it Setting (°F)
145
155
145
150
A ux iliary Lim it Setting (°F)
150
190
180
200
Rollout Lim it Setting (°F)
170
200
190
200
Fan Delay On Heating
30 s ec s.
30 s ec s .
30 s ec s.
30 s ec s .
Off Heating *
150 s ec s .
150 s ec s .
150 s ec s .
150 s ec s .
Fan Delay On Cooling
5 s ec s .
5 s ecs .
5 s ec s .
5 s ecs .
Off Cooling
45 s ec s.
45 s ec s .
45 s ec s.
45 s ec s .
Fan Delay On - Fan Only
5 s ec s .
5 s ecs .
5 s ec s .
5 s ecs .
Gas Supply P res s ure (Natural/P ropane) (" w.c .)
7 / 11
7 / 11
7 / 11
7 / 11
M anifold Pres s ure (Natural/P ropane) High Stage (" w.c .)
3.5 / 10
3.5 / 10
3.5 /10
3.5 /10
M anifold Pres s ure (Natural/P ropane) Low S tage ("w.c .)
1.9 / 6.0
1.9 / 6.0
1.9 / 6.0
1.9 / 6.0
Orific e S iz e (Natural/P ropane)
#43 / #55
#43 / #55
#43 / #55
#43 / #55
Num ber of B urners
2
3
4
5
V ent Connec tor Diam eter (inc hes )
2
2
3
3
Com bus tion A ir Connec tor Diam eter (inc hes )
2
2
3
3
S hipping W eight (lbs .)
133
157
172
184
Refer to airflow charts in this m anual.
* Off H e atin g - Th is fa n d e la y tim in g is a d ju s ta b le (9 0 , 1 2 0 , 1 5 0 o r 1 8 0 s e co n d s ), 1 5 0 s e co n d s a s s h ip p e d .
