AIRSYS 13E1C3 - Page 24

Chapter 2: Installation
Controller Box Installation
Page 20
Figure 14: System Block Diagram illustrates the basic arrangement of two WPUs and the controller box.
Note: The power feed to all three components should be in parallel. Each unit should have a unique breaker/fuse
connection to the main power service.
WPU with AC Supply Fan
WPU with DC Supply Fan
Figure 14: System Block Diagram
Backup Indoor
Temperature Sensor
Indoor Temp Sensor
Humidity Sensor
Power supply
*Refer to the unit
nameplate
Power Supply
*Refer to the unit
nameplate
Power Supply
*Refer to the unit
nameplate