Test Run - Mitsubishi Electric MXZ-2A40VA Manual De Instrucciones

CAUTION:
When charging the refrigerant system with additional refrigerant, be sure to use liquid refrigerant. Add-
ing gas refrigerant may change the composition of the refrigerant in the system and affect normal
operation of the air conditioner. Also, charge the system slowly, otherwise the compressor will be
locked.
To maintain the high pressure of the gas cylinder, warm the gas cylinder with warm water (under 40°C) during
cold season. But never use naked fire or steam.
Union
Indoor
unit
Union
Indoor
unit
Refrigerant gas
cylinder
operating valve
(for R410A)

5-10 TEST RUN

• Be sure to perform the test run for each unit. Make sure each indoor unit operates properly following the
installation manual attached to the unit.
• If you perform the test run for all indoor units at once, you cannot detect any erroneous connection, if any, of
the refrigerant pipes and the indoor/outdoor unit connecting wires.
About the restart protective mechanism
Once the compressor stops, the restart preventive device operates so the compressor will not operate for 3
minutes to protect the air conditioner.
5-11 EXPLANATION TO THE CUSTOMER
• Recommend the customer to read the OPERATING INSTRUCTIONS carefully.
• Using the OPERATING INSTRUCTIONS for each unit, explain the following to the customer, how to control
temperature, how to remove the air filters, how to remove or put the remote controller in the remote controller
holder, how to clean, precautions for operation, etc.
If the customer (user) is absent, explain to the purchaser (owner, building's controller, etc) about those
points.
Stop valve
Liquid pipe
Gas pipe
Outdoor
unit
Liquid pipe
Gas pipe
Service port
Gauge manifold
valve (for R410A)
Charge hose (forR410A)
Refrigerant gas cylinder
for R410A with siphon
Refrigerant (liquid)
Electronic scale for
refrigerant charging
8