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GMV DC Air Handler
4.5 Ductwork
This air handler is designed for a complete supply and return ductwork system.
Do not operate this product without all ductwork attached.
Inadequate ductwork that restricts airflow can result in improper performance and compressor or
heater failure. Ductwork is to be constructed in a manner that limits restrictions and maintains suitable
air velocity. Ductwork is to be sealed to the unit in a manner that will prevent leakage.
Return Ductwork: Do not terminate the return ductwork in an area that can introduce toxic, or
objectionable fumes/odors into the ductwork. The return ductwork is to be introduced into the air
handler bottom (upflow configuration).
Return Air Filters: Each installation must include a return air filter. This filtering may be performed
at the air handler or externally such as a return air filter grille.
4.6 Installation of Wired Controller
Please refer to User Manual of Wired Controller for the installation details.
When installation is finished, the unit must be tested and debugged before
operation. Please refer to Instruction Manual of ODU for auto addressing and debugging details.
5 Wiring Work
disconnected.
(1)
Units must be earthed securely, or it may cause electric shock.
(2)
Please carefully read the wiring diagram before carry out the wiring work, incorrect wiring could cause
malfunction or even damage the unit.
(3)
The unit should be powered by independent circuit and specific socket.
(4)
The wiring should be in accordance with related regulations in order to ensure the units reliable running.
(5)
Install circuit breaker for branch circuit according to related regulations and electrical standards.
(6)
Keep cable away from refrigerant piping, compressor and fan motor.
Do not operate the unit without all ductwork completed.
Before obtaining access to terminals, all supply circuits must be
Fig.4.4
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