Test Operation; Pipe Expanding Method - Toyotomi TRN-2122ZR User Manual

Is electric wiring and pipeline installed
correctly?
Is the unit grounded securely?
Does the power cord follow the
specicatification?
Is there any obstruction in the air inlet
and outlet?
The dust and sundries caused during
installation are removed?
The gas valve and liquid valve of
connection pipe are open completely?
Is the inlet and outlet of piping hole been
covered?

Test Operation

1. Preparation of test operation
• Specify the important notes for air conditioner to the client.
2. Method of test operation
• Put through the power, press ON/OFF button on the remote controller to start operati-
on.
• Press MODE button to select AUTO, COOL, DRY, FAN and HEAT to check whether the
operati on is normal or not.
• If the ambient temperature is lower than 16ºC, the air conditioner cannot start cooling.

Pipe expanding method

Note:
Improper pipe expanding is the main cause of refrigerant leakage. Please expand the pipe
according to the following steps:
A: Cut the pipe
• Confirm the pipe length accodin to the
distance of indoor unit and outdoor
unit.
• Cut the required pipe with pipecutter.
It may cause malfunction or damaging
the parts
It may cause electric leakage.
It may cause malfunction or damaging
the parts.
It may cause insuf cient cooling (heating)
capacity.
It may cause malfunction or damaging the
parts
It may cause insuf cient cooling (heating)
capacity.
It may cause insufficient cooling (heating)
capacity or waster eletricity
pipe
pipe cutter
90° eaning uneven burr
38
GB