FURNACE SPECIFICATIONS
14
NOTES:
1.
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, steady state efficiency times
output.
1.
These furnaces are manufactured for natural gas operation. Optional kits are available for conversion to propane operation.
2.
Minimum Circuit Ampacity calculated as: (1.25 x Circulator Blower Amps) + I.D. Blower Amps. Wire sizes should be determined in accordance
with National Electrical Codes.Extensive wire runs will require larger wire sizes.
3
Maximum Overcurrent protections Device refers to maximum recommended fuse or circult breaker size. May use time delay fuses or HACR-
type circuit breakers of the same sizes as noted.
*Off Heating - This fan delay timing is adjustable (90, 120, 150 or 180 seconds). 150 seconds as shipped.
AMH8***B*
MODEL
AM
H
8
040
3A*B*
AM
H
8
060
3A*B*
AM
H
8
06
0
4
B*
B*
AM
H
8
08
0
3
B*
B*
AM
H
8
08
0
4
B*
B*
AM
H
8
0
8
0
5
C*
B*
AM
H
8
1
0
0
5
C*
B*
AM
H
8
120
5D*B*
Input, Natura l Gas (BTUH)
40, 000
60 ,000
60 ,000
80 ,000
8 0,000
80,000
10 0,000
1 20,000
Output, Na tural Gas (BTUH)
1
32, 000
48 ,000
48 ,000
64 ,000
6 4,000
64,000
8 0,000
96,000
Output, LP (BTUH)
32, 000
48 ,000
48 ,000
64 ,000
6 4,000
64,000
8 0,000
96,000
A.F.U.E.
8 0.0%
8 0.0%
80.0%
80.0%
80.0%
80.0%
80.0%
80.0%
Ra ted External Static (" w.c.)
0.20 - 0.50
0.20 - 0.50
0.20 - 0.5 0
0.20 - 0.5 0
0.20 - 0.50
0.20 - 0.50
0.20 - 0.50
0.20 - 0 .50
Tem perature Rise (°F)
25 - 55
20 - 50
20 - 50
35 - 65
35 - 65
35 - 65
35 - 65
40 - 7 0
Pressure Switch Trip Poin t (" w. c.)
-0.80
-0.8 0
-0.9 0
-0. 80
-0.80
-0 .80
-0.80
-0 .80
Blower Wheel (D" x W")
10x6
10x6
10x8
10 x8
10 x8
10 x10
10x10
1 1x10
Blower Horse power
1/3
1/3
1/2
1/3
1/2
1/2
1/2
3/4
Blower Speeds
4
4
4
4
4
4
4
4
Max CFM @ 0.5 E.S.P.
1298
1157
1883
1448
1725
1960
1974
2131
Power Supply (Vo lts/Hz/Ph)
115/60/1
115/60/1
115/60/1
115/60/1
115/60/1
115/60 /1
115/60 /1
115/60 /1
Minimum Circuit Ampacity (MCA)
2
8.1
8 .1
1 2.5
8 .1
12.5
12.5
12.5
14.7
Maximum Overcurrent Device
3
15
15
15
15
15
15
15
15
Transformer (VA)
40
40
40
40
40
40
40
40
Primary Limit Se tting (°F)
210
150
150
150
150
160
150
160
Auxiliary Limit Setting (°F)
120
120
120
120
120
120
120
120
Ro llo ut Lim it Settin g (°F)
300
300
300
300
300
300
300
300
Fan Delay On Heating
30
30
30
30
30
30
30
30
Off Heating *
150
150
150
150
150
150
150
150
Fan Delay On Cooling
6
6
6
6
6
6
6
6
Off Cooling
45
45
45
45
45
45
45
45
Fan Delay On - Fan Only
0
0
0
0
0
0
0
0
Gas Sup ply Pressure
(Natural/Propane) (" w.c.)
7 / 11
7 / 11
7 / 11
7 / 11
7 / 11
7 / 11
7 / 11
7 / 11
Manifo ld Pressu re
(Natural/Propane) (" w.c.)
3.5 / 10
3.5 / 10
3.5 / 10
3.5 / 10
3.5 / 1 0
3.5 / 10
3.5 / 10
3.5 / 10
Orifice Size (Natural/Propane)
45 / 55
45 / 55
45 / 55
45 / 55
45 / 55
45 / 55
4 5 / 55
4 5 / 55
Nu mber of Burners
2
3
3
4
4
4
5
6
Vent Co nnector Diameter (inches)
4
4
4
4
4
4
4
4
