York ZF210 - Typical Field Wiring 24 Volt Thermostat

1088917-YIM-B-1014
16 Johnson Controls Unitary Products
Figure 13: Typical Field Wiring 24 Volt Thermostat
OCC
C
RC
G
Y2
Y1
W2
W1
X
R
THERMOSTAT
TERMINALS
CONTROL
TERMINAL
BLOCK
TERMINALS ON A
LIMITED NUMBER
OF THERMOSTATS
1
4
3
1
2
4
Second stageŚĞĂƟŶŐŶot required on single stage heĂƟŶg units.
Jumper is required if there is no Smoke Detector circuit.
Jumper is required for any coŵďŝŶĂƟŽŶ of R, RC, or RH.
5
5
OCC is an output from the thermostat to indicate the Occupied ĐŽŶĚŝƟon.
X is an input to the thermostat to display Error Status condiƟons.
3
W2
Y1
G
OCC
Y2
X
R
SD-24
C
W1
2
24V
C
24 VAC
Class 2
SD-24
Jumper Located on Harness
Smoke
Detector
SD-R
24V Output
R
(If No Smoke Detector)
(If Smoke Detector Is Used)
208/230-3-60 and 380/415-3-50 units control
transformers are factory wired for 230v and 415v power
supply respectively. Change tap on transformer for 208-
3-60 or 380-3-50 operation. See unit wiring diagram.