Hitachi CH-6.0N2 Installation And Operation Manual page 16

CH UNIT INSTALLATION
4.4.2 MARKING OF THE POSITIONS OF THE
SUSPENSION BOLTS AND WIRING
CONNECTIONS
1. Mark the positions of the suspension bolts, refrigerant
piping connections and wiring connection.
2. Installation dimensions are shown in chapter 2
"Structure".
4.4.3 MOUNTING THE CH UNIT
1. How to put Nuts
Put nuts on each of the two suspension bolts before
hanging the CH unit, as shown in next figure.
*: Mounting washers are required in order to fix the suspension
bracket to the suspension bolt.
Suspension Bolt (M10 or W3/8)
(Field-Supplied)
Nut (Field-Supplied)
* Washer (Field-Supplied)
Suspension Bracket
(Equipped with CH Unit)
* Washer (Field-Supplied)
Double-Nut (Field-Supplied)
Field-Supplied Parts
* Suspension Bolt:
* Nut:
* Washer:
16
30-50mm
CH UNIT
2-M10 or W3/8
6-M10 or W3/8
4-M10 or W3/8
PMML0309A rev.1 - 09/2015 - P5416573
2. Hanging the CH Unit
a) To hang the CH unit hold it from the bottom of the
casing.
b) Insert the suspension bolt into the groove part of the
suspension bracket as shown in the figure below.
Ensure that the washers are correctly fixed to the
suspension bracket.
c) After hanging the unit, the piping and wiring
connection should be done inside the ceiling.
The position of the pipes has to be taken into
account when selecting the location of the CH
unit installation.If the CH unit has to be installed
in a location where there is no piping or wiring
connection, piping and wiring installation should be
done before the unit is hanged.
d) Keep the CH unit levelled to the ceiling. If the CH
unit is not leveled, a malfunction may occur.
e) Once the position of the CH unit is adjusted, tighten
the nuts of the suspension bolts.
Upper Side
Suspension Bracket
Bottom Side
Suspension Bolt