SPECIFICATIONS
UNIT 542F 180 (15 TON)
OPERATING WT (lb)
Unit 1760
with Economizer 1870
Roof Curb 200
COMPRESSOR Semi Hermetic, 4 Cyl
Quantity...Type 2...06D
Oil (oz) 112 ea
Capacity Steps 0, 50, 100
REFRIGERANT (Capillary Control) R-22
Charge (lb) Sys 1*, Sys 2 16.8, 16.8
OUTDOOR COIL Copper Tube, Aluminum Plate Fins
Rows 3
Fins/in. 13.6
Total Face Area (sq ft) 22.2
OUTDOOR-AIR FAN Propeller Type, Direct Drive
Nominal Cfm 12,000
Quantity...Diameter (in.) 2...26
Motor Hp (1100 Rpm)...kW Input 1...2.2
INDOOR COIL Copper Tube, Aluminum Plate Fins
Total Face Area (sq ft) 18.3
Rows...Fins/in. 3...14.4
INDOOR-AIR FAN Centrifugal, Adjustable Belt Drive
Quantity...Size (in.) 2...10 x 10
Nominal Cfm 6000
Rpm Range Std 916-1186
Alt 1158-1428
Max Allowable Rpm 1550
Fan Pulley Pitch Diameter (in.) 6.4
Motor Pulley Pitch Diameter (in.) Std 3.4-4.4
Alt 4.3-5.3
Motor Frame Size Std 56
Alt —
Belt, Quantity...Type Std 1...A44
Alt 1...B45
Speed Change per Full Turn of 54
Moveable Pulley Flange (Rpm)
Moveable Pulley Maximum Full
5
Turns from Closed Position
Factory Setting — Full Turns Open 5
Factory Speed Setting (Rpm) Std 916
Alt 1158
Motor (1750 Rpm), Hp...Max Watts 3...3500
HIGH-PRESSURE SWITCH
Cutout (psig) 426
Reset (psig) 320
LOSS-OF-CHARGE/LOW-PRESSURE SWITCH
(Liquid Line)
Cutout (psig) 7
Reset (psig) 22
INDOOR-AIR FILTERS, Type 10% Efficient — Throwaway Fiberglass
Quantity...Size (in.) 4...20 x 20 x 2
4...16 x 20 x 2
*System 1 consists of upper portion of outdoor coil and lower portion of indoor coil, and System 2 consists of the upper
portion of the indoor coil and the lower portion of the outdoor coil.
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