FURNACE SPECIFICATIONS
17
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.
AMVC95
MODEL
AMVC950453BX* AMVC950704CX* AMVC950905CX* AMVC950905DX* AMVC951155DX*
Btuh Input (US) High Fire
46,000
69,000
92,000
92,000
115,000
Output (US) High Fire
44,300
66,900
88,800
88,800
111,100
Btuh Input (US) Low Fire
32,000
48,000
64,000
64,000
80,000
Output (US) Low Fire
30,800
46,400
61,700
61,700
77,400
A.F.U.E.
99%
95.5%
95.7%
95.7%
95.8%
Rated External Static (" w.c.)
.10 - .50
.10 - .50
.10 - .50
.10 - .50
.10 - .50
Temperature Rise (°F)
30 - 60
30 - 60
30 - 60
30 - 60
35 - 65
High Stage Pressure Switch Trip Point (" w.c.)
-0.75
-0.75
-1.70
-1.10
-1.10
Low Stage Pressure Switch Trip Point (" w.c.)
-0.30
-0.30
-0.60
-0.50
-0.50
Front Cover Pressure Switch Trip Point (" w.c)
-0.10
-0.10
-0.10
-0.10
-0.10
Blower Wheel (D" x W")
10 x 8
10 x 10
11 x 10
11 x 10
11 x 10
Blower Horsepower
1/2
3/4
1
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
115-60-1
Minimum Circuit Ampacity (MCA)
11.3
14.1
14.4
14.4
14.4
Maximum Overcurrent Device
15
15
15
15
15
Transformer (VA)
40
40
40
40
40
Heat Anticipator (Amps)
0.7
0.7
0.7
0.7
0.7
Primary Limit Setting (°F)
145
155
130
145
150
Auxiliary Limit Setting (°F)
150
190
120
180
200
Rollout Limit Setting (°F)
170
200
200
190
200
Fan Delay On Heating
30 secs.
30 secs.
30 secs.
30 secs.
30 secs.
Off Heating *
150 secs.
150 secs.
150 secs.
150 secs.
150 secs.
Fan Delay On Cooling
5 secs.
5 secs.
5 secs.
5 secs.
5 secs.
Off Cooling
45 secs.
45 secs.
45 secs.
45 secs.
45 secs.
Fan Delay On - Fan Only
5 secs.
5 secs.
5 secs.
5 secs.
5 secs.
Gas Supply Pressure (Natural/Propane) (" w.c.)
7 / 11
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
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
1.9 / 6.0
Orifice Size (Natural/Propane)
#43 / #55
#43 / #55
#43 / #55
#43 / #55
#43 / #55
Number of Burners
2
3
4
4
5
Vent Connector Diameter (inches)
2
2
2
2
2
Combustion Air Connector Diameter (inches)
2
2
2
2
2
Shipping Weight (lbs.)
133
157
172
172
184
Refer to airflow charts in this manual.
* Off Heating - This fan delay timing is adjus table (90, 120, 150 or 180 seconds ), 150 seconds as shipped.
