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SECTION 5 – TECHNICAL DATA
TABLE 6 - MICROPANEL POWER SUPPLY
UNIT VOLTAGE
UNIT
MODELS W/O
VOLTAGE
CONTROL
TRANS
-17
-28
MODELS W/
-40
CONTROL
-46
TRANS
-50
-58
A. Minimum #14 AWG, 75 °C, Copper Recommended
B. Minimum and Maximum Over Current Protection, Dual Element Fuse or Circuit Breaker
It is possible that multiple sources of
power can be supplying the unit power
panel. To prevent serious injury or death,
the technician should verify that NO
LETHAL VOLTAGES are present inside
the panel AFTER disconnecting power,
PRIOR to working on equipment.
Voltage Limitations
The following voltage limitations are absolute and
operation beyond these limitations may cause serious
damage to the compressor.
TABLE 7 - VOLTAGE RANGE
VOLTAGE CODE
-17
-28
-40
-46
-50
-58
COMPRESSOR HEATERS
Compressor heaters are standard. ZP180 compressors
utilize 70W heaters; ZP235, compressor use 120W
heaters and ZP285, ZP385, and ZP485 utilize 150W
heaters. If power is OFF more than two hours, the
48
ELECTRICAL DATA
CONTROL
MCA
POWER
NOTE A
115-1-60/50
15A
200-1-60
15A
230-1-60
15A
380-1-60
15A
460-1-60
15A
380/415-1-60
15A
575-1-60
15A
VOLTAGE RANGE
UNIT POWER
200/3/60
208/3/60
230-3-60
380-3-60
460-3-60
380/415-3-50
575-3-60
crankcase heaters must be energized for 18 – 24 hours
prior to restarting a compressor. This will assure that
liquid slugging and oil dilution does not damage the
compressors on start.
OVER CURRENT PROTECTION,
SEE NOTE B
MIN
MAX
10A
15A
10A
15A
10A
15A
10A
15A
10A
15A
10A
15A
10A
15A
The unit evaporator heater uses 120VAC.
Disconnecting 120VAC power from the
unit, at or below freezing temperatures,
can result in damage to the evaporator
and unit as a result of the chilled liquid
freezing.
MIN.
180
187
207
355
414
360
517
FORM 150.72-ICOM6
ISSUE DATE: 12/29/2017
NF DISC SW
30 A / 240V
30 A / 240V
30 A / 240V
30 A / 480V
30 A / 480V
30A / 415V
30 A / 600V
MAX.
220
228
253
415
506
440
633
JOHNSON CONTROLS
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Troubleshooting
