Installation Of The Outdoor Unit; Installation Sites - Hitachi air core 600 Installation & Maintenance Manual

7. Installation of the Outdoor Unit

7.1 Installation Sites

Avoid
Direct sunlight
Thick Oil fog
Container With Flammable materials
Near Heat Source/ventilation fan
You should
Place it in cool temperature.
Place it in an area with good ventilation.
Have required space for air inlet, outlet and
maintenance. (Fig 7.1)
Make a strong base (10X40cm board made of
concrete or similar). The appliance should be
placed not less than 10 cm high to avoid being
wet or corroded. Otherwise, it may cause damage
to the appliance or reduce its life time. (Fig 7.2)
Fix the base with hook bolts to reduce vibration and
noise.
If the total piping is longer than 5m, an additional
refrigerant must be added. It is not necessary to add
compressor oil.
Air inlet
Min.
10cm
Top obstacle
300mm (18K/24K)
600mm (30K~60K)
Air outlet
Ground
Fig.7.1
Aisle Or sideway
Wet Or Uneven place
2
Min. 10cm
Min.
35cm
Air outlet
Min.50cm
Top obstacle
2m 2m
Air outlet
Obstacle
Ground Min.10cm Air inlet
Setscrew
(at least 4)
Min.10cm
Fig.7.2
Installation and Maintenance
Indoor unit
Height difference H
Max. pipe
Model length
(L)
18K 30(m)
25/30/36K
50(m)
42/48/55K
Additional refrigerant charge Q(g):
For 18K: Q=(L-5m)×12g/m
For 25K~55K: Q=(L-5m)×28g/m
7.2 Installation of the Outdoor Unit
Firstly select the installation site and fix the outdoor
unit. If it needs to be fixed onto the wall, make sure
that the wall and the supporting rack is strong enough
to hold the weight of the appliance.
Wiring instruction for outdoor unit
Release the set
screws of the electric cover,
remove the electric cover (if the valve cover is
there either, please release it).










Connect the indoor unit wiring to the outdoor unit
panel according to the electric wiring diagrams.
Be sure to make each wire allowing 10cm longer
than the required length for wiring.
Ground the unit following local electrical
regulations.
Check the wiring with the wiring diagrams and
make sure it is well connected. Fix the wiring with
clips and reinstall the electric cover.
Fix the unit with wire ropes to prevent overturning
●
in case a seasonal strong wind blows against the
unit .
29
Pipe length L
Outdoor unit
Max. height
difference refrigerant
(H) (exceed 5m)
15(m) 12(g/m)
30(m) 28(g/m)
Fig.7.3
Wire Ropes
Fig.7.4
Add.