Field Control Wiring - York ECO R-22 User Manual

Field Control Wiring

Wiring Notes:
1. Wiring shown indicates typical wiring.
2. All wiring is Class 2, low voltage.
3. Maximum power available from the 24 VAC
terminal is 40VA.
4. Use shielded wire where shown.
Note, 24VAC switch voltage must be
sourced from the unit. Use of another d f
power source external of the unit may
cause equipment damage.
Unoccupied Input
Smoke Purge Input
VAV Heat
Relay Output
FIG. 4 – FIELD CONTROL WIRING
YORK INTERNATIONAL
7 Wire Thermostat
COMMON
R (24VAC)
Y1 (Cool Stage 1)
Y2 (Cool Stage 2)
W1 (Heat Stage 1)
W2 (Heat Stage 2)
G (Fan)
Space Sensor
1K Nickel Signal
Common
RTD Sensor
Signal
1.5K Adjust
Common
Potentiometer
2
CO Sensor
Signal
0-5V Output
Common
h i U f h
i d
Occupied /
Shutdown Input
24 VAC Signal
Common
Note: VAV Heat Relay
output shall be used to h ll b
command the VAV boxes d h VAV b
to open full.
1 2
* Use Shielded Wire
* Use Shielded Wire
* Use Shielded Wire
Closed = Occupied
O Open = Unoccupied
Closed = Shutdown
Open = Normal
Closed = Smoke Purge
Open = Normal
d
FORM 100.50-EG3 (802)
3 4 5 7 9 13 15 17 18 19 20 21
LD06804
63