Unit Installation - Hitachi AirCore 700 Operation Installation Maintenance Manual

3. Indoor Unit Installation
•
Check to ensure that the ceiling slab is strong enough. If not strong enough, the indoor unit may fall
down on you.
•
Do not install the indoor units in a machinery shop or kitchen where vapor from oil or mist flows to the
indoor units. The oil will deposit on the heat exchanger, thereby reducing the indoor unit performance,
and may deform. In the worst case, the oil damages the plastic parts of the indoor unit.
•
To avoid any corrosive action to the heat exchangers, do not install the indoor units in an acid or
alkaline environment.
•
When lifting or moving the indoor unit, use appropriate slings to avoid damage and be careful not to
damage the insulation material on units' surface.

3.1 Unit Installation

3.1.1 Factory-supplied Accessories
Accessory
Washer with
insulation
material (M10)
Washer (M10)
Drain hose
Hose clamp
Ring core
Wire clamp
Wire Harness
CN33
3.1.2 Initial Check
1. Install the indoor unit with a proper clearance around it. Pay careful attention of installation
direction for the piping, wiring and maintenance working space as shown below.
2. Provide a service access door near the unit piping connection area on the ceiling.
Qty. Purpose
Pipe insulation
4
For unit
installation
Pipe insulation
4
Cord clamp
1
For drain hose
connection
Cord clamp
1
Insulation
For anti-
(5Tx 50 x200)
electromagnetic
interference of
1 transmission
Insulation
cables between
(5Tx 270 x270)
outdoor and
indoor units
Screw
For fixing wirings
1 (only in PCI 2.0 /
(M4x10)
2.5/ 3.0UFA1NQ)
For human sensor
panel installation,
1 connected on
CN33 port of main
board
-11-
Accessory Qty.
1
1
2
7
1
1
2
Purpose
For refrigerant
piping
connection
For fixing
remote control
switch wiring,
louver sensor
and insulation
of piping
For covering
wiring
connection
For covering
drain
connection
For fixing wire
clamps(only in
PCI 2.0 / 2.5/
3.0UFA1NQ)