Installation Checklist; Test Operation - Trane American Standard 4MXD8509A10N0 Installer Manual

Air handler for multi-split inverter system
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Ceiling Concealed Unit

Installation Checklist

Check the following points before testing the unit:
NO.
Have the indoor and outdoor units been
1
securely installed?
Has the refrigerant leak test been
2
completed?
Have the pipes been properly insulated?
3
Is the water condensate drainage
4
sufficient?
Does the voltage of the power supply
5
comply with the voltage on the nameplate?
Is the electric wiring and drain piping
installed correctly?
6
Is the unit grounded properly?
7
Does the power cord match the unit
8
requirements?
Are there any obstructions near the air
inlets and air outlets for the indoor and
9
outdoor units?
Have dust and debris been cleaned and
removed from the installation site?
10
Are the gas valve and liquid valve of the
11
connection pipes open completely?

Test Operation:

1. Turn on main power to the units.
2. Using the remote control, press the ON/OFF button to start 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 the ambient temperature is lower than 61°F (16°C) the air conditioner will not run in
COOL mode.
5. Go over basic operating, maintenance and troubleshooting functions with the customer.
Item to be checked
Possible problem
The units may fall, vibrate or make noise.
Unresolved leaks may cause insufficient
cooling or heating.
Lack of insulation may cause condensation
and water damage.
Lack of proper drainage may cause
condensation and water damage.
Improper wiring can create malfunction and
fire or electrocution hazard.
Improper wiring and drainage can create
a malfunction, fire or electrocution hazard
and water damage to the unit and property.
Improper grounding can cause malfunction
and fire or electrocution hazard.
Improper wiring can create malfunction and
fire or electrocution hazard.
Improper ventilation and airflow will cause
insufficient cooling and heating.
Excessive dust and debris in and around
the units may cause a malfunction or
damage to the units.
Restricted refrigerant flow may cause
insufficient cooling or heating.
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