Before Starting The Test Run; Indoor Unit Accessories; Selecting An Installation Site; Combining Indoor Units With Outdoor Units - Mitsubishi Electric CITY MULTI PVFY-P18 NAMU-E Installation Manual


Safely dispose of the packing materials.

Packing materials, such as nails and other metal or
wooden parts, may cause stabs or other injuries.

Tear apart and throw away plastic packaging bags so
that children will not play with them. If children play with a
plastic bag which was not torn apart, they face the risk of
suffocation.

3.5. Before starting the test run

Caution:

Turn on the power at least 12 hours before starting
operation.

Starting operation immediately after turning on the main
power switch can result in severe damage to internal parts.
Keep the power switch turned on during the operational
season.

Do not touch the switches with wet fi ngers.

Touching a switch with wet fi ngers can cause electric
shock.

Do not touch the refrigerant pipes during and
immediately after operation.

During and immediately after operation, the refrigerant
pipes may be hot or may be cold, depending on the
condition of the refrigerant fl owing through the refrigerant
piping, compressor, and other refrigerant cycle parts.
Your hands may suffer burns or frostbite if you touch the
refrigerant pipes.

Do not operate the air conditioner with the panels and
guards removed.

Rotating, hot, or high-voltage parts can cause injuries.

Do not turn off the power immediately after stopping
operation.

Always wait at least fi ve minutes before turning off the
power. Otherwise, water leakage and trouble may occur.

4. Indoor unit accessories

Part No.
1 Plastic tie
2 Plastic tube
3 Installation Manual
4 Operation Manual
5 Drain pan seal

5. Selecting an installation site


Avoid locations exposed to outside air.

Select a location free of obstructions to the airfl ow in and out of
the unit.

Avoid locations exposed to steam or vapor

Avoid locations where combustible gas may leak, settle or be
generated.

Avoid installation near machines emitting high-frequency waves
(high frequency welders, etc.).

Avoid locations where the airfl ow is directed at a fi re alarm
sensor. (Hot air could trigger the alarm during operation)

Avoid places where acidic solutions are frequently used.

Avoid places where sulphur-based or other sprays are
commonly used.

When the air handler is installed in the horizontal position
please install a drain pan under entire cabinet.

Install suffi cient thermal insulation to prevent condensation from
forming on the outlet and inlet ducts.
6
For combining indoor units with outdoor units, refer to the outdoor
unit's installation manual.
The air handler can be installed in a vertical, horizontal (Right and
Left) and Downfl ow confi guration as shown in step 9.1. through 9.4.
The units are designed for "0" zero clearance to combustibles. 24" is
required for service access to the front of the unit. (See Installation
Clearance) Regardless of mounting confi guration, the air handler
must be mounted level to facilitate proper condensate drainage.
Qty
4
2
1
1
2
6. Combining indoor units with outdoor
units

7. Installing the unit

Installation Clearance
TOP View
Vertical Installation
Clearance Area
24"
Width of Unit
TOP View
Horizontal Installation
Clearance Area
24"
Length of Unit