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2. Selecting an installation site
2.1. About the product
•
This unit uses R410A-type refrigerant.
•
Piping for systems using R410A may be different from that for systems using
conventional refrigerant because the design pressure in systems using R410A is
higher. Refer to the Data Book for more information.
•
Some of the tools and equipment used for installation with systems that use other
types of refrigerant cannot be used with the systems using R410A. Refer to the
Data Book for more information.
•
Do not use the existing piping, as it contains chlorine, which is found in conven-
tional refrigerating machine oil and refrigerant. This chlorine will deteriorate the
refrigerant machine oil in the new equipment. The existing piping must not be
used as the design pressure in systems using R410A is higher than that in the
systems using other types of refrigerant and the existing pipes may burst.
2.2. Installation site
•
Install the unit in a place not exposed to rain. The HBC controller is designed to
be installed indoors.
•
Install the unit with adequate space around it for servicing.
•
Do not install the unit in a place that would result in the piping length restrictions
being exceeded.
•
Install the unit in a place not exposed to direct radiant heat from other heat
sources.
•
Do not install the unit in any oily steamy place or near any machine that gener-
ates high frequencies. Doing so may cause a risk of fire, erroneous operation or
condensation.
•
Install the unit in a location where the noise from the unit will not be a problem.
(Install indoor unit and HBC controller at least 5 m away from each other when
installed in a space with low background noise, e.g., hotel rooms).
•
Allow enough space and access to ensure water piping, refrigerant piping and
electrical wiring can be easily connected.
•
Avoid places exposed to the generation, inflow, accumulation or leakage of flam-
mable and sulfuric gases.
•
Ensure a downward gradient of at least 1/100 for drain piping.
•
Properly install the unit on a stable, load-bearing surface.
1. For hanging from the ceiling [Fig. 2.2.1] (P.2)
•
Provide 2 inspection holes 450 mm square in the ceiling surface as shown in
[Fig. 2.3.1] (P.2).
•
Install the unit in a suitable location (such as in the ceiling of a corridor or in the
bathroom etc) away from places regularly occupied. Avoid installing in the center
of a room.
•
Ensure hanging bolts are of sufficient pull out strength.
•
Install a sub drain pan (sold separately, PAC-HBC01DP-E). If leakage from
underneath the HBC would cause no problem in the installed location, installation
of the sub drain pan is not necessary. [Fig. 2.2.1] (P.2) [Fig. 2.3.1] (P.2)
Warning:
Be sure to install the unit in a place that can sustain the entire weight.
If there is a lack of strength, it may cause the unit to fall down, resulting in an
injury.
3. Installing the HBC controller
3.1. Checking the accessories with the HBC
controller
The following items are supplied with each HBC controller.
Item
1
Drain hose
2
Cable tie
3
Hose band
4
Refrigerant connection pipe
•
Be sure to install the unit horizontally.
Install the HBC level (less than 1° tilt), so that the drain pan can function
correctly.
•
Install the HBC in an environment where the temperature in always above
0°C.
2.3. Securing installation and service space
1. For hanging from the ceiling
(This is a reference view showing the least installation space.)
[Fig. 2.3.1] (P.2)
2.4. Checking the installation site
Check that the difference of elevation between indoor and outdoor units and the
length of refrigerant piping are within the following limitations.
1. CMB-WP108V-G
[Fig. 2.4.1] (P.2)
Notes:
*1 Indoor units that are connected to the same branch joint cannot be simul-
taneously operated in different operation modes.
3.2. Installing HBC controllers
Installing hanging bolts
Install locally procured hanging bolts (threaded rod) following the procedure given in
the figure. The hanging bolt size is ø10 (M10 screw).
Model name
To hang the unit, use a lifting machine to lift and pass it through the hanging bolts.
The suspension bracket has an oval hole. Use a large diameter washer.
CMB-WP108V-G
Qty
[Fig. 3.2.1] (P.2)
1
1
1
Be sure to install the HBC controller horizontally. Check using a level. If
2
the controller is installed at an angle, drain water may leak out. If the unit
is slanted, loosen the fixing nuts on the hanging brackets to adjust its
position.
Install the HBC level (less than 1° tilt), so that the drain pan can function
correctly.
•
Be sure to install the unit horizontally.
Install the HBC level (less than 1° tilt), so that the drain pan can function
correctly.
Caution:
<A> Top view
A Inspection hole
C Control box
E Water inlet
G Service space
*1 Dimensions with which pipe connection can be handled at site
Model name
A
CMB-WP108V-G
1600
A Outdoor unit
C Indoor unit
D Less than H=50 m (when the outdoor unit is higher than the indoor unit)
E Less than H1=40 m (when the outdoor unit is lower than the indoor unit)
F Twinning pipe (field supply)
G Less than 110 m
I Up to three units for 1 branch port
Total capacity: less than 80 (but in same mode, cooling/heating)
J Less than 15 m
Item
Between outdoor unit and HBC
controller (refrigerant pipework)
Water pipework between indoor units and
HBC controller
Above outdoor unit
Between
indoor and
outdoor units
Below outdoor unit
Between indoor units and HBC controller
Between indoor units
1 Hanging method
A: Min.30 mm
A Hanging bolt ø10 (field supply)
Caution:
<B> Front view
B Side of outdoor unit piping
D Side of indoor unit piping
F Sub drain pan
H Indoor unit side
B
–
B HBC controller
H Less than 60 m
K Less than 15 m
(Unit: m)
Piping portion
Allowable value
A
110 or less
f
60 or less
H
50 or less
H1
40 or less
h1
15 or less
h2
15 or less
B Washer (field supply)
7
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