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BASE UNIT 50HJ
NOMINAL CAPACITY
OPERATING WEIGHT (lb)
Unit
Humidi-MiZer™ Adaptive Dehumidification System
EconoMi$er IV
Roof Curb
COMPRESSOR
Quantity
Oil (oz)
REFRIGERANT TYPE
Expansion Device
Operating Charge (lb-oz)
Standard Unit
Unit With Humidi-Mizer Adaptive Dehumidification System
CONDENSER FAN
Quantity...Diameter (in.)
Nominal Cfm
Motor Hp...Rpm
Watts Input (Total)
CONDENSER COIL
Rows...Fins/in.
Total Face Area (sq ft)
EVAPORATOR COIL
Standard Unit
Rows...Fins/in.
Total Face Area (sq ft)
Unit with Humidi-Mizer Adaptive Dehumidification System
Rows...Fins/in.
Total Face Area (sq ft)
EVAPORATOR FAN
Quantity...Size (in.)
Nominal Cfm
Maximum Continuous Bhp
Motor Frame Size
Fan Rpm Range
Motor Bearing Type
Maximum Fan Rpm
Motor Pulley Pitch Diameter A/B (in.)
Nominal Motor Shaft Diameter (in.)
Fan Pulley Pitch Diameter (in.)
Belt — Type...Length (in.)
Pulley Center Line Distance (in.)
Speed Change per Full Turn of
Movable Pulley Flange (rpm)
Movable Pulley Maximum Full
Turns from Closed Position
Factory Setting — Full Turns Open
Factory Speed Setting (rpm)
Fan Shaft Diameter at Pulley (in.)
HIGH-PRESSURE SWITCH (psig)
Standard Compressor Internal Relief
Cutout
Reset (Auto.)
LOSS-OF-CHARGE/LOW-PRESSURE
SWITCH (Liquid LIne) (psig)
Cutout
Reset (Auto.)
FREEZE PROTECTION THERMOSTAT
Opens (F)
Closes (F)
OUTDOOR-AIR INLET SCREENS
RETURN-AIR FILTERS
Quantity...Size (in.)
LEGEND
Bhp — Brake Horsepower
*Single phase/three phase.
Table 1—Physical Data 50HJ
004
3
435
15
50
115
1
42
5-8
12-5
1...22
3500
1
/8...825
180
Enhanced Copper Tubes, Aluminum Lanced Fins
1...17
14.6
Enhanced Copper Tubes, Aluminum Double-Wavy Fins
2...15
5.5
1...17
3.9
1...10 x 10
1200
Std
1.20
Hi-Static
2.40
Std
48
Hi-Static
56
Std
680-1044
Hi-Static
1075-1455
Ball
2100
Std
1.9/2.9
Hi-Static
2.8/3.8
Std
1/
2
Hi-Static
5
/
8
Std
4.5
Hi-Static
4.5
Std
1...A...36
Hi-Static
1...A...39
10.0-12.4
Std
65
Hi-Static
65
Std
5
Hi-Static
6
Std
3
Hi-Static
1
3
/
2
Std
826
Hi-Static
1233
5
/
8
Cleanable. Screen quantity and size varies with option selected.
9
005
006
4
5
445
465
23
25
50
50
115
115
Scroll
1
1
53
50
R-22
Acutrol™ Metering Device
10-2
10-0
18-8
20-5
Propeller
1...22
1...22
3500
4100
1
1
/8...825
/
...1100
4
180
320
2...17
2...17
16.5
16.5
2...15
4...15
5.5
5.5
2...17
2...17
3.9
3.9
Centrifugal Type, Belt Drive
1...10 x 10
1...10 x 10
1600
2000
1.20
1.30/2.40*
2.40
2.90
48
56
56
56
770-1185
1035-1460/1035 ---1460*
1075-1455
1300-1685
Ball
Ball
2100
2100
1.9/2.9
2.4/3.4
2.8/3.8
3.4/4.4
1
5
/
/
2
8
5
/
/
7
8
8
4.0
4.0
4.5
4.5
1...A...36
1....4...40
1...A...39
1...A...40
10.0-12.4
14.7-15.5
70
75
65
60
5
6
6
5
3
3
1
1
3
/
3
/
2
2
936
1248
1233
1396
5
5
/
/
8
8
450 ± 50
428
320
7 ± 3
22 ± 5
30
45
Throwaway
2...16 x 25 x 2
007
6
540
29
50
115
1
60
12- 8
23-14
1...22
4100
1
/
...1100
4
320
2...17
21.3
4...15
7.3
2...17
5.2
1...10 x 10
2400
2.40
2.90
56
56
1120-1585
1300-1685
Ball
2100
2.4/3.4
3.4/3.4
5
/
8
7
/
8
3.7
4.5
1...A...38
1...A...40
14.7-15.5
95
60
5
5
3
1
3
/
2
1304
1396
5
/
8
2...16 x 16 x 2
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