Single-Point Supply Connection - Terminal Block, Non-Fused Disconnect Switch Or Circuit Breaker; Figure 20 - Single Point Power Supply Connection - Standard Unit - York YCWL0056SE Installation Operation & Maintenance

SECTION 5 – TECHNICAL DATA
SINGLE-POINT SUPPLY CONNECTION – TERMINAL BLOCK,
NON-FUSED DISCONNECT SWITCH OR CIRCUIT BREAKER
STD FIELD PROVIDED 120-1-60
POWER SUPPLY
(NOT REQUIRED IF OPTIONAL
CONTROL TRANSFORMER FITTED)
2
Control
Transformer*
FIGURE 20 - SINGLE POINT POWER SUPPLY CONNECTION – STANDARD UNIT
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.
62
FIELD PROVIDED
UNIT POWER SUPPLY
1
Term Block
or
NF Disc SW*
or
Circuit Breaker*
Circuit
#1
Optional*
ISSUE DATE: 1/19/2018
LEGEND:
Field Wiring
Factory Wiring
Micropanel
Circuit
#2
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.
JOHNSON CONTROLS
FORM 201.26-NM1
LD14536