40MUAA: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
27
TEST RUN
BEFORE THE TEST RUN
A test run must be performed after the entire system has been completely
installed. Confirm the following points before performing the test.
a.
Indoor and outdoor units are properly installed.
b.
Piping and wiring are properly connected.
c.
There are no obstacles near the unit’s inlet and outlet that
might cause poor performance or product malfunction.
d.
Refrigeration system does not leak.
e.
Drainage system is unimpeded and draining to a safe location.
f.
Heating insulation is properly installed.
g.
Grounding wires are properly connected.
h.
Length of the piping and additional refrigerant recorded.
i.
Power voltage is the correct voltage for the system.
Test Run Instructions
1. Open both the liquid and gas stop valves.
2. Turn on the main power switch and allow the unit to warm up.
3. Set the air conditioner to the
COOL
mode.
4. For the indoor unit:
a.
Double check to see if the room temperature is being registered
correctly.
b.
Ensure the manual buttons on the indoor unit work properly.
c.
Ensure the drainage system is unimpeded and draining
smoothly.
d.
Ensure there is no vibration or abnormal noise during
operation.
5. For the outdoor unit:
a.
Check to see if the refrigeration system is leaking.
b.
Ensure there is no vibration or abnormal noise during
operation.
c.
Ensure the wind, noise, and water generated by the unit do not
disturb neighbors or pose a safety hazard.
6. Drainage Test
a.
Ensure the drainpipe flows smoothly. New buildings should
perform this test before finishing the ceiling.
b.
Remove the test cover. Add 2,000 ml of water to the tank
through the attached tube.
c.
Turn on the main power switch and run the air conditioner in
the
COOL
mode.
d.
Check to see that the water is discharged. It may take up to one
minute before the unit begins to drain depending on the
drainpipe.
e.
Ensure there are no leaks in any of the piping.
f.
Stop the air conditioner. Turn off the main power switch and
reinstall the test cover.
NOTE: If the unit malfunctions or does not operate according to
your expectations, please refer to the Troubleshooting section of the
owner’s manual before calling customer service.
SYSTEM CHECKS
1. Conceal the tubing where possible.
2. Ensure the drain tube slopes downward along its entire length.
3. Ensure all tubing and connections are properly insulated.
4. Fasten the tubes to the outside wall, when possible.
5. Seal the hole through which the cables and tubing pass.
INDOOR UNIT
1. Do all the remote controller buttons function properly?
2. Do the display panel lights work properly?
3. Does the drain work?
Explain the following items to customer (with the aid of the
owner’s manual):
1. How to turn air conditioner
ON
and
OFF
;
2. How to select
COOLING
,
HEATING
and other the operating
modes;
3. How to set a desired temperature;
4. How to set the timer to automatically start and stop air conditioner
operation;
5. How to control all the other features of the remote controller and
display panel.
6. How to remove and clean the air filter.
7. Unit care and maintenance.
Present the owner’s manual and installation instructions to the customer.
START-UP PROCEDURES
Refer to outdoor unit’s installation instructions for system start-up
instructions.
CARE AND MAINTENANCE
To continue high performance and minimize possible equipment failure,
it is essential that periodic maintenance be performed on this equipment.
Consult your local dealer as to the proper frequency of maintenance
contract.
The ability to properly perform maintenance on this equipment requires
certain mechanical skills and tools. If you do not possess these, contact
your dealer for maintenance. The only consumer service recommended or
required is filter replacement or cleaning on a monthly basis.
Failure to perform the test run may result in unit damage, property
damage, or personal injury.
CAUTION
UNIT COMPONENT HAZARD
Failure to follow this caution may result in product damage. Never
operate the unit without a filter. Damage to the blower motor or
coil may occur. For those applications where access to an internal
filter is impractical, a field-supplied filter must be installed in the
return duct system.
CAUTION
