Check Items For Trial Run And After Installation; Trial Run; Check Items After Installation - Gree KF-20GW/A20 Service Manual

Check Items for Trial Run and after Installation

Trial Run

Preparation for trial run
Before complete of entire installation, power cannot be turned on.
Control circuit should be connected correctly, all wire be connected firmly.
Open cut-off valve of both thick and thin pipe.
All scattered things, especially scrap and wire etc., should be taken out from the unit.
Open panel and set manual switch to RUN mode.
Trial run method
Connect with power supply.
Press ON/OFF button on wireless remote control then press MODE to select working method such as COOL,
DEHUMIDIFY, HEAT and FAN etc. to see if operations are normal.
Emergency run.
Following operations can be conducted under the circumstance of emergent operation or loss of wireless remote control:
Under stop state set switch to AUTO mode, then unit enters auto run state. Microcomputer select COOL, HEAT, FAN
according to indoor temp. to offer comfort effect.
Set switch to STOP when unit is running, then unit stop working.

Check Items after Installation

Items to be checked
Is the installation firm enough?
Is leakage test done?
Is heat insulation sufficient?
Is drainage smooth?
Is power voltage the same with that listed in nameplate?
Is installation of circuit and pipeline correct?
Is unit earthed safely?
Is wire model fits relative regulation?
Are air inlet or outlet vent of indoor and outdoor
unit blocked?
Are length of refrigerant pipe and charge amount
of refrigerant recorded?
Possible malfunction
Unit may drop, shake or emit noise
It may cause insufficient of refrigerating (heating)
capacity
Condensation or drop may occur
Condensation or drop may occur
Malfunction or burn out of parts may occur.
Malfunction or burn out of parts may occur.
Creepage may occur
Malfunction or burn out of parts may occur.
It may cause insufficient of refrigerating (heating)
capacity
Cannot handle the charging amount of refrigerant