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MODEL
GUIC070DA40
Btuh Input (US)
Output (US)
A.F.U.E.
Rated External Static (WC)
Temperature Rise °F
Pressure Switch Trip Point
Blower Wheel (D x W)" **
Blower Horsepower
Blower Speeds
Max CFM @ 0.5 E.S.P.
Power Supply
Min. Circuit Ampacity (MCA)
Max. Overcurrent Device
Transformer (VA)
Heat Anticipator
Limit Setting °F
Aux. Limit °F.
Fan Delay On
Off Heating *
Off Cooling
Gas Supply Pressure (Nat/LP)
Manifold Pressure (Nat/LP)
Orifice Size (Nat/LP)
Number of Burners
Vent Connector Diameter
Shipping Weight (lbs.)
* Off Heating - This fan delay timing is adjustable (60, 90, 120, 180 seconds). 90 seconds as shipped.
** Note: The five models above use 10x8 blower assembly instead of 10x6 to achieve a full 4 tons of airflow.
1. These furnaces are manufactured for natural gas operation. Optional LP Conversion Kits are available to convert to
propane gas.
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
of in accordance with the "A.S.H.R.A.E. GUIDE" or "MANUAL J-LOAD CALCULATIONS" published by the AIR CON-
DITIONING 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.
FURNACE SPECIFICATIONS
GUIC070DX40
GUID070DA40
69,000
69,000
69,000
55,200
55,200
55,200
80%
80%
80%
.12 - .50
.12 - .50
.12 - .50
35 - 65
35 - 65
35 - 65
-0.55
-0.55
-0.55
10 x 8
10 x 8
10 x 8
1/2
1/2
4
4
1529
1529
1529
115-60-1
115-60-1
115-60-1
9.9
9.9
15
15
40
40
0.7
0.7
215
215
160
160
30 secs.
30 secs.
30 secs.
90 secs.
90 secs.
90 secs.
45 secs.
45 secs.
45 secs.
7" / 11"
7" / 11"
7" / 11"
3.5 " / 10"
3.5 " / 10"
3.5 " / 10"
#43 / #55
#43 / #55
#43 / #55
3
3
4"
4"
152
152
GUID070DX40
GCIC070DX40
69,000
69,000
55,200
55,200
80%
80%
.12 - .50
.12 - .50
35 - 65
45 - 75
-0.55
-0.55
10 x 8
10 x 8
1/2
1/2
1/2
4
4
4
1529
1571
115-60-1
115-60-1
9.9
9.9
9.9
15
15
15
40
40
40
0.7
0.7
0.7
215
215
215
160
160
160
30 secs.
30 secs.
90 secs.
90 secs.
45 secs.
45 secs.
7" / 11"
7" / 11"
3.5 " / 10"
3.5 " / 10"
#43 / #55
#43 / #55
3
3
3
4"
4"
4"
152
152
152
21
Rev. 2
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