3-3. Suspending the Indoor Unit
Depending on the ceiling type:
Insert suspension bolts as shown in Fig. 3-3
●
Hole-in-anchor
Hole-in-plug
Suspension bolt (M10 or 3/8")
(field supply)
or
Use existing ceiling supports or construct a suitable support
●
as shown in Fig. 3-4.
WARNING
It is important that you use extreme care in supporting
the indoor unit from the ceiling. Ensure that the ceiling is
strong enough to support the weight of the unit. Before
hanging the unit, test the strength of each attached
suspension bolt.
(1) Before suspending the unit from the ceiling, determine the
pitch of the suspension bolts referring to the dimensional
data given previously. (Figs. 3-1 and 3-2)
(2) Screw in the suspension bolts allowing them to protrude
from the ceiling as shown in Fig. 3-3. (Cut the ceiling
material, if necessary.)
(3) Suspend and fix the indoor unit as shown in Fig. 3-6 using
vibration absorbers, sound insulation brackets and the
material shown in Fig. 3-5. Note that all fixing material
must be field-supplied.
Lock nut M8
Hanging rod M8
length: approx. 1 m
Lock nut M8
Spanner nut M8
Setting range: 30 mm
Set screw M8
with left-hand and right-hand thread
Lock nut M8
Concrete
Insert
Fig. 3-3
Ceiling tiles
Ceiling support
Fig. 3-4
Fig. 3-5
(4) Use the existing fixing points on the top side of the unit.
The number of fixing points depends on the length of the
air curtain.
10EAIRC
No. of fixing
1.0 m
points
4
●
6
Wall
Door
frame
■ RAP Valve Kit (Refrigerant Accumulation Protector
Valve Kit) (CZ-P160RVK2)
3-4. Installing the RAP Valve Kit
When installing an air curtain type indoor unit (EAIRC-MJ or
EAIRC-MS type of size 15 or bigger) in a 2-pipe multi-system,
you must also install 2 RAP Valve Kits (2 x CZ-P160RVK2).
Connect 2 RAP valve kits in parallel for EAIRC-MJ/MS types
●
of size 15 or bigger.
Secure the RAP valve kit using suspension bolts, etc. within
●
30 meters from the indoor unit.
Do not place the RAP valve kit directly on the ceiling.
●
Gas tube ø15.58
Supplied strainer
assembly
Indoor Unit Side
Liquid tube ø9.52
Service cover
6P connector (5 m)
354
80
Note: This figure shows the valve body with the suspension hook
and strainer assemblies installed.
For more details about the installation, please refer to the
installation instruction which comes with the RAP valve kit.
9
15EAIRC
20EAIRC
1.5 m
2.0 m
●
●
Ceiling mounting kit
Electrical connections
Inlet grille
Inspection cover
Gas tube ø15.88
Suspension
hook
Outdoor Unit Side
CAUTION
Liquid tube ø9.52
319
372
159.5
Valve body
80
1045
25EAIRC
2.5 m
●
Fig. 3-6
Supplied strainer
assembly
Unit: mm
Fig. 3-7
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