Haier 1U71S2SG1FA Service Manual page 172

Test Run
1. Preparations
(1) Check the power supply.
(2) Check the equipment around, whether there is any combustible source, fire source, or heat source.
(3) Power on is not allowed before all the installation operations are completed and before the leak detection is
proven qualified.
(4) The control circuit shall be connected correctly and all the wires shall be firmly connected.
(5) The two-way stop valve and three-way stop valve shall be opened.
(6) All the scattered articles (especially the metal filing and thread residue) shall be removed from the unit body.
2. Methods
(1) Switch on the power supply and press the "ON/OFF" on the remote controller, after which the air conditioner will
start operating.
(2) Press "Mode"to select refrigeration, heating and sweeping wind, and observe whether the air conditioner is
under normal operation.
• Please call the dealer or the appointed agency.
• Follow the following procedures:
Inspection on system leakage prior
to disassembly
Inspection on operational state
Refrigerant recovery by the system
Cleaning of the indoor unit and
connecting pipes with inert gas
Disassembly
Installat on as requ red in standards
Note: in case relocation is required, the joint of evaporator gaslliquid pipes of the indoor unit shall be cut off with a
cutting knife.Connection is only allowed after re-flaring (the same to the outdoor unit).
Relocation Procedures
Safety discharge of refrigerant
Safety discharge of refrigerant
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Disassembly
Disassembly