Johnson Controls YORK Tempo YLAA0135 - USER CONTROL WIRING INPUTS

FORM 150.72-NM1 (1020)
45
JOHNSON CONTROLS
4
FIG. 10 – CONTROL WIRING INPUTS
USER CONTROL WIRING INPUTS
It is possible that multiple sources
of power can be supplying the unit
power panel. To prevent serious in-
jury or death, the technician should
verify that NO LETHAL VOLTAGES
are present inside the panel AFTER
disconnecting power, PRIOR to work-
ing on equipment.
The unit evaporator heater uses
120VAC. Disconnecting 120VAC
power from the unit, at or below freez-
ing temperatures, can result in dam-
age to the evaporator and unit as a
result of the chilled liquid freezing.
LD13130
XTBC1
A-
A+
14
13
50
13
21
13
20
13
19
13
18
13
51
13
INTERNAL WIRING TO OPTIONAL REMOTE TEMP. RESET BOARD
FLOW SWITCH
REMOTE UNLOAD STEP 1
PWM REMOTE TEMP RESET
INTERNAL WIRING TO 2-KCR CONTROL RELAY
INTERNAL WIRING TO 1-KCR CONTROL RELAY
REMOTE START / STOP
All externally supplied contacts must
be capable of switching 24 VDC / 115
VAC. Gold contacts are recommended.
If supplied contacts are from a Relay
/ Contactor (Inductive Load), the coil
of the Relay / Contactor must be sup-
pressed. Typical suppressor is P/N
03100808000.
WIRING FOR OPTIONAL REMOTE TEMP RESET (4-20 MA, 0-10VDC)