Carrier 38QUA009DS, Service Manual, Page: 4 / 116

1
1. Precaution
1.1 Safety Precaution

To prevent injury to the user or other
people and property damage, the following
instructions must be followed.

Incorrect operation due to ignoring
instruction will cause harm or damage.

Before service the unit, be sure to
read this service manual at first.
1.2 Warning

Installation

Do not use a defective or underrated
circuit breaker. Use this appliance on a
dedicated circuit.
There is risk of fire or electric shock.

For electrical work, contact the dealer,
seller, a qualified electrician, or an
authorized service center.
Do not disassemble or repair the product,
there is risk of fire or electric shock.

Always ground the product.
There is risk of fire or electric shock.

Install the panel and the cover of
control box securely.
There is risk of fire of electric shock.

Always install a dedicated circuit and
breaker.
Improper wiring or installation may cause
electric shock.

Use the correctly rated breaker of
fuse.
There is risk of fire or electric shock.

Do not modify or extend the power
cable.
There is risk of fire or electric shock.

Do not install, remove, or reinstall the
unit by yourself (customer).
There is risk of fire, electric shock, explosion,
or injury.

Be caution when unpacking and
installing the product.
Sharp edges could cause injury, be especially
careful of the case edges and the fins on the
condenser and evaporator.

For installation, always contact the
dealer or an authorized service center.

Do not install the product on a
defective installation stand.

Be sure the installation area does not
deteriorate with age.
If the base collapses, the air conditioner could
fall with it, causing property damage, product
failure, and personal injury.

Do not let the air conditioner run for a
long time when the humidity is very high
and a door or a window is left open.

Take care to ensure that power cable
could not be pulled out or damaged during
operation.
There is risk of fire or electric shock.

Do not place anything on the power
cable.
There is risk of fire or electric shock.

Do not plug or unplug the power
supply plug during operation.
There is risk of fire or electric shock.

Do not touch (operation) the product
with wet hands.

Do not place a heater or other
appliance near the power cable.
There is risk of fire and electric shock.

Do not allow water to run into
electrical parts.
It may cause fire, failure of the product, or
electric shock.

Do not store or use flammable gas or
combustible near the product.
There is risk of fire or failure of product.

Do not use the product in a tightly
closed space for a long time.
Oxygen deficiency could occur.

When flammable gas leaks, turn off
the gas and open a window for ventilation
before turn the product on.