FURNACE SPECIFICATIONS
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.
16 Rev. 2
* Off Heating - This fan delay timing is adjustable (60, 90, 120, 180 seconds). 90 seconds as shipped.
MODEL
GUIA045A30
GUIA045B30
GUIA045C30
GUIA070A30
GUIA070B30
GUIA070C30
GUIA070A40
GUIA070B40
GUIA070C40
GUIA090A30
GUIA090B90
GUIA090C30
GUIA090A50
GUIA090B50
GUIA090C50
GUIA115A40
GUIA115B40
GUIA115C40
GUIA115A50
GUIA115B50
GUIA115C50
GUIA140A50
GUIA140B50
GUIA140C50
Btuh Input (US) 46,000 69,000 69,000 92,000 92,000 115,000 115,000 140,000
Output (US) 36,800 55,200 55,200 73,600 73,600 92,000 92,000 110,400
A.F.U.E. 80% 80% 80% 80% 80% 80% 80% 80%
Rated External Static (WC) .10 - .50 .12 - .50 .12 - .50 .15 - .50 .15 - .50 .20 - .50 .20 - .50 .20 - .50
Temperature Rise °F 35 - 65 35 - 65 35 - 65 40 - 70 40 - 70 40 - 70 35 - 65 45 - 75
Pressure Switch Trip Point -1.80 -1.42 -1.42 -1.30 -1.30 -1.10 -1.10 -1.20
Blower Wheel (D x W)" 9 x 8 9 x 8 10 x 6 10 x 8 10 x 8 10 x 7 10 x 9 10 x 9
Blower Horsepower 1/3 1/3 1/2 1/2 1/2 1/2 3/4 3/4
Blower Speeds 44444444
Max CFM @ 0.5 E.S.P. 1200 1290 1450 1380 1975 1590 1985 2050
Power Supply 115-60-1 115-60-1 115-60-1 115-60-1 115-60-1 115-60-1 115-60-1 115-60-1
Min. Circuit Ampacity (MCA) 9.5 10.1 11.5 8.6 15.3 13.5 13.8 14.8
Max. Overcurrent Device 15 15 15 15 20 15 15 15
Transformer (VA) 40 40 40 40 40 40 40 40
Heat Anticipator 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7
Limit Setting °F 250 200 210 180 190 160 180 160
Aux. Limit °F. 160 160 160 160 160 160 160 160
Fan Delay On 30 secs. 30 secs. 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. 90 secs. 90 secs.
Off Cooling 45 secs. 45 secs. 45 secs. 45 secs. 45 secs. 45 secs. 45 secs. 45 secs.
Gas Supply Pressure (Nat/LP) 7" / 11" 7" / 11" 7" / 11" 7" / 11" 7" / 11" 7" / 11" 7" / 11" 7" / 11"
Manifold Pressure (Nat/LP) 3.5 " / 10" 3.5 " / 10" 3.5 " / 10" 3.5 " / 10" 3.5 " / 10" 3.5 " / 10" 3.5 " / 10" 3.5 " / 10"
Orifice Size (Nat/LP) #43 / #55 #43 / #55 #43 / #55 #43 / #55 #43 / #55 #43 / #55 #43 / #55 #43 / #55
Number of Burners 23344556
Vent Connector Diameter4"4"4"4"4"4"4"4"
Shipping Weight (lbs.) 140 151 152 169 178 190 194 198
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