JOHNSON CONTROLS
57
SECTION 5 – TECHNICAL DATA
FORM 150.27-NM1
ISSUE DATE: 09/30/2015
55
LD14535
DUAL-POINT SUPPLY CONNECTION – TERMINAL BLOCK,
NON-FUSED DISCONNECT SWITCH OR CIRCUIT BREAKER
FIGURE 17 -
DUAL POINT POWER SUPPLY CONNECTION – OPTIONAL
STD FIELD PROVIDED 120-1-60
POWER SUPPLY
(NOT REQUIRED IF OPTIONAL
CONTROL TRANSFORMER FITTED)
FIELD PROVIDED UNIT
POWER SUPPLY
1
2
Control
Transformer
Circuit
Breaker
Circuit
#1
Circuit
#2
Circuit
Breaker
GRD
Micropanel
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.
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.
