Control Wiring; Figure 11 - Control Wiring - York YCAL0019 Installation, Operation And Maintenance Manual

FORM 150.67-NM1
ISSUE DATE: 4/28/2017
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21
CTB1
CTB2
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 dis-
connecting power, PRIOR to working
on equipment.

FIGURE 11 - CONTROL WIRING

JOHNSON CONTROLS

CONTROL WIRING

FLOW SW REMOTE START/STOP
LOAD LIMIT INPUT
LD07725A
SECTION 4 – INSTALLATION
*
* Factory wired with optional transformer.
The unit evaporator heater uses
120VAC. Disconnecting 120VAC pow-
er 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.
4
LD07730
45