Ceiling Cassette Air Handler Installation Manual
2
Installation information
• To install properly, please read this "installation manual" at rst.
• The air conditioner must be installed by qualied persons.
• When installing the indoor unit or its tubing, please follow this manual as strictly as possible.
• If the air conditioner is installed on a metal part of the building, it must be electrically insulated
according to the relevant standards to electrical appliances.
• When all the installation work is nished, please turn on the power only after a thorough check.
• Regret for no further announcement if there is any change of this manual caused by product
improvement.
Installation order
1. Indoor unit installation
2. Outdoor unit installation
3. Install the refrigerant pipe
4. Connect the drain pipe
5. Electric wiring work
6. Installation of the decoration panel
7. Test operation
Installation
Summary
Page 6
Revised 5/14/2020
Installation Summary
Check o when completed
Is the indoor unit xed rmly?
The unit may drop, vibrate or make noise.
Is the gas leak test nished?
It may result in insucient cooling or heating.
Is the unit fully insulated?
Condensate water may drip.
Does drainage ow smoothly?
Condensate water may drip.
Does the power supply voltage correspond to that shown on
the name plate?
The unit may malfunction or components may burn out.
Are wiring and piping correct?
The unit may malfunction or components may burn out.
Is the unit safely grounded?
Dangerous at electric leakage.
Is the wiring size in accordance with specications?
The unit may malfunction or components may burn out.
Is anything blocking the air outlet or inlet of either the indoor
or outdoor units?
It may result in insucient cooling or heating.
Are refrigerant piping length and additional refrigerant
charge noted down?
The refrigerant charge in the system might not be clear.