Installation manual

035-19310-002-B-0504
20 Unitary Products Group
GAS HEAT
These gas-fired heaters have aluminized-steel or
optional stainless steel, tubular heat exchangers with
spark ignition with proven pilot.
All gas heaters are shipped from the factory equipped
for natural gas use. See Gas Heat Application Data
Table.
For natural gas heating installations in locations requir-
ing low NOx emissions, Accessory model 1LN0404
must be used.
TABLE 3: ELECTRIC HEATER CFM LIMITATIONS
5 7 10 15 20 30
208/230-1-60 1100 1100 1200 1200 1300 -
208/230-3-60 1100 1100 1200 1200 1300 -
460-3-60 - 1100 1200 1200 1300 -
575-3-60 - - 1200 1200 1300 -
208/230-1-60 1300 1300 1300 1300 1300 -
208/230-3-60 1300 1300 1300 1300 1300 -
460-3-60 - 1300 1300 1300 1300 -
575-3-60 - - 1300 1300 1400 -
208/230-1-60 1600 1600 1600 1600 1600 1600
208/230-3-60 1600 1600 1600 1600 1600 1600
460-3-60 - 1600 1600 1600 1600 1600
575-3-60 - - 1600 1600 1600 1800
208/230-1-60 1800 1800 1800 1800 1800 1800
208/230-3-60 1800 1800 1800 1800 1800 1800
460-3-60 - 1800 1800 1800 1800 1800
575-3-60 - - 1800 1800 1800 1800
3
4
5
6
MINIMUM SUPPLY AIR CFM
HEATER SIZE NOMINAL KW
VOLTAGE
UNIT MODEL SIZE NOMINAL
TONS
TABLE 4: GAS HEAT APPLICATION DATA
MIN. MAX.
N04 50 40 3 TON 47 15 45
N06 75 60 4 TON 70 25 55
N08 100 79 3/5/6 TON 93 40/25/25 70/55/55
N10 125 99 4/5/6 TON 116 45/35/35 75/65/65
GAS HEAT OPTION
INPUT CAPACITY
(MBH)
OUTPUT CAPACITY
(MBH)
AVAILABLE ON
MODELS
GAS RATE
1
(Ft
3
/Hr)
TEMPERTURE RISE °F AT FULL INPUT
2
NOTE: Gas Heaters are shipped available for natural gas, but can be converted to L.P. with Kit Model No. 1NP0434.
All furnaces meet the latest California seasonal efficiency requirements.
1. Based on 1075 Btu/Ft
3
.
2. The air flow must be adjusted to obtain a temperature rise within the range shown.