FURNACE SPECIFICATIONS
8
Rev. 1
1. These furnaces are manufactured for natural gas operation. Optional kits are available for conversion to propane opera-
tion.
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 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.
4. Minimum Circuit Ampacity calculated as: (1.25 x Circulator Blower Amps) + I.D. Blower Amps.
MODEL
GUID045CA30
GUID045CX30
GUID045DA30
GUID045DX30
GUID070CA30
GUID070CX30
GUID070DA30
GUID070DX30
GUID070CA40
GUID070CX40
GUID070DA40
GUID070DX40
GUID090CA30
GUID090CX30
GUID090DA30
GUID090CA50
GUID090CX50
GUID090DA50
GUID090DX50
GUID115CA50
GUID115CX50
GUID115DA50
GUID115DX50
Btuh Input (US)
46,000
69,000
69,000
92,000
92,000
115,000
Output (US)
36,800
55,200
55,200
73,600
73,600
92,000
A.F.U.E.
80%
80%
80%
80%
80%
80%
Rated External Static (" w.c.)
.10 - .50
.12 - .50
.12 - .50
.15 - .50
.15 - .50
.20 - .50
Temperature Rise (°F)
35 - 65
35 - 65
35 - 65
40 - 70
40 - 70
40 - 70
Pressure Switch Trip Point (" w.c.)
-0.55
-0.55
-0.55
-0.55
-0.55
-0.55
Blower Wheel (D" x W")
9 x 8
9 x 8
10 x 6
10 x 8
10 x 8
10 x 9
Blower Horsepower
1/3
1/3
1/2
1/2
3/4
3/4
Blower Speeds
4
4
4
4
4
4
Max CFM @ 0.5 E.S.P.
1200
1290
1529
1380
1975
1985
Power Supply
115-60-1
115-60-1
115-60-1
115-60-1
115-60-1
115-60-1
Minimum Circuit Ampacity (MCA)
8.6
8.5
10.4
8.2
14.6
13.1
Maximum Overcurrent Device
15
15
15
15
15
15
Transformer (VA)
40
40
40
40
40
40
Heat Anticipator
0.7
0.7
0.7
0.7
0.7
0.7
Primary Limit Setting (°F)
230
220
170
*150
160
190
Auxiliary Limit Setting (°F)
160
160
160
160
160
160
Rollout Limit Setting (°F)
250
300
300
300
300
275
Fan Delay On
30 secs.
30 secs.
30 secs.
30 secs.
30 secs.
30 secs.
Off Heating *
90 secs.
90 secs.
90 secs.
90 secs.
90 secs.
90 secs.
Off Cooling
45 secs.
45 secs.
45 secs.
45 secs.
45 secs.
45 secs.
Gas Supply Pressure (Natural/Propane) ("w.c.)
11-Jul
11-Jul
11-Jul
11-Jul
11-Jul
11-Jul
Manifold Pressure (Natural/Propane) ("w.c.)
3.5 / 10
3.5 / 10
3.5 / 10
3.5 / 10
3.5 / 10
3.5 / 10
Orifice Size (Natural/Propane)
#43 / #55
#43 / #55
#43 / #55
#43 / #55
#43 / #55
#43 / #55
Number of Burners
2
3
3
4
4
5
Vent Connector Diameter (inches)
4
4
4
4
4
4
Shipping Weight (lbs.)
140
151
152
169
178
194
*150 = The GUID090**30 furnaces were changed from primary limit part #10728331 (160°F) to limit part #10728332 (150°F) per ECN60850 effective June 6, 2000.
* Off Heating - This fan delay timing is adjustable (60, 90, 120 or 180 seconds), 90 seconds as shipped.