Owner's manual

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UNIT
SIZE
CONNECTION
SIZE (COIL)
A B c
D
7/8 OD
(Suction)*
2 ea 6-3/16 14-13/16
180R-379H
5/8 OD (Liquid)*
2 ea
10-3/16
18-13/16
1-3/8 OD
(Suction)
2 ea 7-3/16
12-5/8
240R-379H
5/8 OD (Liquid)
2 ea
10-3/16
18-1/2
*Refer to condensing unit for compressor suction and liquid line sizes
Approximate
Shipping Weights
450-379H—1425 lbs
180R-379H—1460 lbs
240R-379H—1565 lbs
^4
Figure 2-Dimensional Drawing
A69420
TABLE I- Ratings and Capacities
• Model 450-, 180R-, & 240R-379H
Heating Input, 1st Stage
Btuh 225,000
Heating Output, 1st Stage
Btuh 168,000
Heating Input, 1st & 2nd Stages Btuh
450,000
Heating Output, 1st & 2nd Stages Btuh
337,000
Approved Temp Rise
°F 20-75
CFM 0.5 inch wc S.P.
6,000
Blower Motor
HP
3
Power Supply
208-60-3 230-60-3
Full Load Current
Amps 8.4 8.4
Locked Rotor Current
Amps
58.2 53.0
Speed
RPM
3450
Frame Size 56
Branch Circuit Wire Size Min*
AWG No. 14 14
Branch Circuit Fuse Size Max
Amps 25 25
Filters Size
(450-379H) (6) 16x25x1
(180R & 240R) (3) 16x25x1
(3) 20x25x1
*If alumimun conductors are to be used, the connections must be made in accordance with the National Electric Code. The
wire size selected must have a current capacity not less than that of the copper wire specified and must not create a voltage
drop between the service panel and the unit in excess of 2% of the unit rated voltage.
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