AHU COMMUNICATIONS KIT INSTALLATION
General Power Wiring Guidelines
All electrical work must be performed by a licensed electrician and conform to local building codes or, in the absence of
local codes, with the National Electrical Code, and the instructions in this manual.
Inadequate power source capacity or improper electric work may result in fire, electric shock, physical injury or death.
All field-supplied parts, materials, and electric work must be conform to local codes.
Improper components and installation may result in fire, electric shock, physical injury or death.
A main switch or disconnect, in accordance with relevant local and national codes, and having a contact separation in
all poles, must be incorporated in the wiring.
Improper installation by the user may result in fire, electric shock, physical injury or death.
Refer to the air-source / water-source heat pump unit installation manual for power wiring sizes, circuit breaker and
switch capacities, and wiring instructions.
If the power source capacity for the air-source unit / water-source unit is inadequate or the electric work is not performed properly, it may result
in fire, electric shock, physical injury or death.
Use copper wire only and connect wires tightly to the terminals. Install wiring so that other equipment is not obstructed.
Improper or incomplete connections could result in overheating, fire, electric shock, physical injury or death.
Ensure the power source is disconnected before performing this procedure.
If the power source is connected during this procedure, it could result in electric shock, physical injury, or death�
1. Carefully pull the power cable through the cable nut and grommet.
2. Connect the power cable to the power terminal block.
3. Pull enough cable through the nut and grommet to allow enough slack for strain relief.
4. Tighten the cable nut.
Figure 8: Power Wiring Connection.
Front View with Cover Open
Power Terminal Block
Due to our policy of continuous product innovation, some specifications may change without notification.
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