Johnson Controls ZY Series User Manual

Everyday Thermostat Control (ETC)
The ETC board focuses on providing the quickest field install, start-up, and service possible.
Figure 29: ETC board component location
Table 56: ETC board components
Location Label Description Function and comments
W1 Thermostat Connection 1st Stage Heat Command
W2 Thermostat Connection 2nd Stage Heat Command
Y1 Thermostat Connection 1st Stage Cool Command
G Thermostat Connection Indoor Fan Command
Y2 Thermostat Connection 2nd Stage Cool Command
X Thermostat Connection Alarm Indication (24VAC Rectified)
R Thermostat Connection 24VAC Connection
24V Thermostat Connection No Connection
A
C Thermostat Connection 24VAC Common ConnectionLimit
B P4 For Internal Use Only
C J10 No Connection (For Future Use)
INSTALLATION MANUAL ZY SERIES 3-10ton 60 Hertz R-410A100
Johnson Controls Ducted Systems

Johnson Controls ZY Series Specifications

General

Brand	Johnson Controls
Model	ZY Series
Category	Air Conditioner
Language	English