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Verification after installation
Verify the following before testing the unit:
NO.
Points to verify
Possible problem
1
Were both indoor and outdoor units installed
with proper safety?
Could fall, vibrate or make noise
2
Were tests for refrigerant leaks terminated?
Leaks that were not resolved could cause
insufficient heating or cooling
3
Was piping properly insulated?
Lack of insulation could lead to condensation
and water damages
4
Was the installation of condensate draining
sufficient?
Inappropriate draining could lead to
condensation and water damages
5
Does power supply voltage comply with
indications on the unit's identification
nameplate?
Incorrect power supply can create bad
performance and lead to danger of fire or
electrocution
6
Was electric wiring installed correctly as well
as that of the drain piping?
Inappropriate wiring and draining could create
bad performance and lead to danger of fire or
electrocution as well as to unit and property
damages due to water
7
Was the unit grounded properly?
Inappropriate grounding could cause bad
performance, fire or electrocution
8
Does the power cable comply with unit
requirements?
Inappropriate wiring can cause bad
performance, fire or electrocution
9
Are there obstructions close to air entries and
outlets for both indoor and outdoor units?
Inappropriate ventilation and air flow will lead
to insufficient cooling or heating as well as
possible freezing and condensate problems for
the indoor unit
10
Has dust and debris been removed from the
installation site?
Excessive dust and debris in and around the
units can lead to bad performance and damage
to the units
11
Are the gas and liquid valves of the connecting
tubes completely open?
Restricted refrigerant flow can cause
insufficient heating or cooling
Operation test:
1. Energize the units.
2. Using the remote control, press ON/OFF button to initiate the operation.
3. Press the MODE button to select and test each option for normal operation. Cycle through all
functions: AUTO, COOL, DRY, FAN and HEAT.
4. Note: If ambient temperature is below 61°F (16°C) the unit will be unable to operate in the
cooling mode.
5. Check with the customer all basic operating, maintenance and error detection functions.
29
Wall Unit
Содержание 4MXW1609A1
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