Chapter 2: Installation
Complete Electrical Connections
Page 26
Complete Electrical Connections
Cautions
Danger. Only an authorized service technician should make the electrical connections to the WPUs and the
controller box.
Important. The electrical wiring of the unit must be in compliance with IEC standards or with appropriate
national standards.
Danger. The power supply must be disconnected or turned off before working on the unit.
Important. Noncompliance with these instructions may cause damage to the WPU or the controller box. Not
following instructions can void the warranty.
Important. No modification to the unit’s electric circuit is allowed. If a change is required, it must be
authorized by AIRSYS in writing.
Overview of Wiring
Figure 20 illustrates the wiring terminals in the control box. Each unit has an identical set of terminals. The terminal
numbers for HVAC #2 are distinguished with a single quote (‘) after the number.
Figure 20: Field Wiring Terminals
2 Control Harnesses
13 wires from controller box to each WPU
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