6
Table 1A — Physical Data, 50TJ016-028 (SI)
LEGEND
*Circuit 1 uses the lower portion of condenser coil and lower portion of evapo-
rator coils, and Circuit 2 uses the upper portion of both coils.
†The 50TJ028 units requires 50-mm industrial-grade filters capable of han-
dling face velocities of up to 3.2 m/s (such as American Air Filter no. 5700 or
equivalent).
UNIT SIZE
016
024
028
(Standard)
028
(High Static DEC Option)
NOMINAL CAPACITY (kW)
52.8
70.3
87.9
87.9
OPERATING WEIGHT (kg)
708
816
885
885
EconoMi$er
36.3
36.3
36.3
36.3
MoistureMiser Dehumidification Package
18.1
18.1
18.1
18.1
COMPRESSOR
Scroll
Quantity...Model (Ckt 1, Ckt 2)
2...ZR108KC
1...ZR16M3,
1...ZR125KC
1...ZR19M3,
1...ZR16M3
1...ZR19M3,
1...ZR16M3
Capacity Stages (%)
50/50
55/45
60/40
60/40
Number of Refrigerant Circuits
2
2
2
2
Oil (ml) (Ckt 1, Ckt 2)
3135
4022, 3135
4022, 4022
4022, 4022
REFRIGERANT TYPE
R-22
Expansion Device
TXV
Operating Charge (kg)
Circuit 1*
4.81
6.76
9.07
9.07
Circuit 2
4.81
5.72
6.03
6.03
CONDENSER COIL
Cross-Hatched
3
/
8
-in. Copper Tubes, Aluminum Lanced,
Aluminum Pre-Coated, or Copper Plate Fins
Rows...Fins/m
2...669
3...590
4...590
4...590
Total Face Area (sq m)
2.02
2.02
2.02
2.02
CONDENSER FAN
Propeller Type
Propeller Type
Nominal L/s
6700
8600
Quantity...Diameter (mm)
2...762
2...762
Motor BkW...r/s
0.75...17.9
3.73...17.9
Watts Input (Total)
3400
7800
EVAPORATOR COIL
Cross-Hatched
3
/
8
-in. Copper Tubes, Aluminum Lanced
or Copper Plate Fins, Face Split
Rows...Fins/m
2...669
3...590
4...590
4...590
Total Face Area (sq m)
1.63
1.63
1.63
1.63
EVAPORATOR FAN
Centrifugal Type
Quantity...Size (mm)
2...254 x 254
2...305 x 305
2...305 x 305
2...305 x 305
Type Drive
Belt
Belt
Belt
Belt
Nominal L/s
2832
3776
4720
4720
Motor kW
2.76
5.59
7.46
7.46
Motor Nominal r/s
28.8
29.1
29.0
29.0
Maximum Continuous BkW
3.17 (400 v),
2.57 (220 v)
7.68
9.92 (400 v),
8.60 (220 v)
9.92 (400 v),
8.60 (220 v)
Motor Frame Size
56H
213T
215T
215T
Fan r/s Range
Low-Medium Static
12.38-16.38
12.8-15.2
14.8-17.8
14.8-17.8
High Static
17.05-21.67
16.6-20.3
18.6-22.4
18.6-22.4
Motor Bearing Type
Ball
Ball
Ball
Ball
Maximum Allowable r/s
25.8
25.8
25.8
25.8
Motor Pulley Pitch Diameter (mm)
Low-Medium Static
79/104
140/165
125/150
125/150
High Static
94/119
137/168
125/150
125/150
Nominal Motor Shaft Diameter (mm)
22
35
35
35
Fan Pulley Pitch Diameter (mm)
Low-Medium Static
152
239
203
203
High Static
132
201
163.0
163.0
Nominal Fan Shaft Diameter (mm)
30
36.5
36.5
36.5
Belt, Quantity...Type...Length (mm)
Low-Medium Static
1...BX...1067
1...BX...1372
2...BX...1270
2...BX...1270
High Static
1...BX...1067
1...BX...1270
2...BX...1194
2...BX...1194
Pulley Center Line Distance (mm)
343-394
371-391
371-391
371-391
Speed Change per Full Turn of
Movable Pulley Flange (r/s)
Low-Medium Static
.80
.47
.60
.60
High Static
.92
.62
.75
.75
Movable Pulley Maximum Full Turns
From Closed Position
Low-Medium Static
5
5
5
5
High Static
5
6
5
5
Factory Setting
3.5
3
3
3
Factory Speed Setting (r/s)
Low-Medium Static
13.58
13.75
16.01
16.01
High Static
18.43
18.42
20.08
20.08
HIGH-PRESSURE SWITCH (kPa)
Cutout
2951
Reset (Auto.)
2206
LOW-PRESSURE SWITCH (kPa)
Cutout
186
Reset (Auto.)
303
FREEZE PROTECTION THERMOSTAT (C)
Opens
–1 ± 2
Closes
7 ± 2
ELECTRONIC PROTECTION MODULE
Cutout (ohms)
4500 ± 900
4500 ± 900
4500 ± 900
4500 ± 900
Reset (ohms)
2750 ± 450
2750 ± 450
2750 ± 450
2750 ± 450
OUTDOOR-AIR INLET SCREENS
Cleanable
Quantity...Size (mm)
2...508 x 635 x 25
1...508 x 508 x 25
RETURN-AIR FILTERS
Throwaway†
Quantity...Size (mm)
4...508 x 508 x 50
4...406 x 508 x 50
Bhp
—
Brake Horsepower
DEC —
Design Enhancement Center
TXV
—
Thermostatic Expansion Valve
Содержание 50TJ016-028
Страница 32: ...32 Refer to Fig 44 for typical unit wiring schematic Fig 44 Typical Wiring Schematic 50TJ024 400 V Shown ...
Страница 37: ......
Страница 39: ......