Bryant DURAPAC PLUS SERIES 542J User Manual
Page 4
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4
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Table 1 — Physical Data
LEGEND
*Indoor coil fin material/outdoor coil fin material.
†Weight of 14 in. roof curb.
**Pulley cannot be run at 0 or
1
/
2
turns open.
UNIT SIZE 542J
150
180
NOMINAL CAPACITY (tons)
12
1
/
2
15
OPERATING WT (lb)
Al/Al*
1615
1925
Al/Al Coated*
1615
1925
Unit Al/Cu*
1745
2075
Cu/Cu*
1815
2165
Electric Heat
65
65
EconoMi$erIV
90
90
Roof Curb†
200
200
COMPRESSOR
Semi-Hermetic
Type (Number)
06D-328 (1)
06D-818 (2)
Cylinders
6
4
Oil Change (oz.) (each circuit)
115
88
REFRIGERANT TYPE
R-22
Charge (lb)
System 1
26.0
16.5
System 2
—
16.5
OUTDOOR COIL
3
/
8
in., Internally Grooved Copper Tubes, Aluminum or Copper Lanced Fins
Rows
3
3
Fins/in.
15
15
Total Face Area (sq ft)
21.7
21.7
OUTDOOR FAN
Propeller Type, Direct Drive
Nominal Cfm
9,000
9,000
Number...Diameter (in.)
3...22
3...22
Motor Hp (1075 rpm)
1
/
2
1
/
2
Watts Input (Total)
1090
1090
INDOOR COIL
3
/
8
in., Internally Grooved Copper Tubes, Aluminum or Copper Lanced Fins, Face Split
Expansion Device
Fixed Orifice
Rows
3
3
Fins/in.
15
15
Total Face Area (sq ft)
17.5
17.5
INDOOR FAN
Centrifugal, Adjustable Pitch Belt Drive
Quantity...Size (in.)
2...10 x 10
2...12 x 12
Nominal Cfm
5000
6000
Maximum Continuous Bhp
4.25
5.90
Fan Rpm Range
862-1132
799-1010
Maximum Allowable Rpm
1550
1550
Motor Pulley Pitch Diameter (in.)
3.1/4.1
3.7/4.7
Fan Pulley Pitch Diameter (in.)
6.0
11.4
Belt, Quantity...Type...Length (in.)
1...BX...42
1...BX...46
Pulley Center Line Distance (in.)
13.5-15.5
13.3-14.8
Speed Change Per Turn (rpm)
54
42
Pulley Maximum Full Turns
6**
6**
Factory Pulley Turns Setting
3
3
Factory Speed Setting (rpm)
1024
926
Fan Shaft Diameter (in.)
1
3
/
16
1
7
/
16
Motor Hp (Service Factor)
3.7 (1.15)
5.0 (1.15)
Motor Frame Size
56H
184T
Motor Efficiency
0.84
0.84
HIGH-PRESSURE SWITCH
Cutout (psig)
426
Reset (psig)
320
LOW-PRESSURE/LOSS-OF-CHARGE
SWITCH
Cutout (psig)
7
Reset (psig)
22
AIR INLET SCREENS
Cleanable
Economizer, Quantity...Size (in.)
2...20 x 25 x 1
1...20 x 20 x 1
RETURN-AIR FILTERS (TYPE)
10% Efficient — 2-in. Throwaway Fiberglass
Quantity...Size (in.)
4...20 x 20 x 2
4...16 x 20 x 2
DEFROST THERMOSTAT
Defrost Time
30 min (Adjustable to 50 or 90 min)
Closes (F)
28
Opens (F)
65
Al
— Aluminum
Cu — Copper