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2.
In case of installing multiple units (2 units or more) in lateral
connection per row.
H
Relation of dimensions between H, A and L is shown in the table
below.
0<L≤1/2H
L≤H
1/2H<L≤H
H<L
Installation impossible
4.4. Inspecting, handling and unpacking the unit
Handling the unit
As shown in the figure, bring the unit slowly by grabbing the left and
right grips.
Place your hands on the corner instead of holding the suction inlet in
the side of the casing, otherwise the casing could be deformed.
Take care not to let hands or objects come in contact with
rear fins.
Installation method for prevention of falling over
If it is necessary to prevent the unit from falling over, install as shown
in the figure.
prepare all 4 wires as indicated in the drawing
unscrew the top plate at the 4 locations indicated A and B
put the screws through the nooses and screw them back tight
C
A
location of the 2 fixation holes on the front side of the unit
B
location of the 2 fixation holes on the rear side of the unit
C
wires: field supply
Installation manual
5
L
A
≥3000
≥600
≥1500
L
A
250
300
B
A
A
Method for removing transportation stay
The yellow transportation stay installed over the compressor leg for
protecting the unit during transport must be removed. Proceed as
shown in
figure 3
and described below.
A
Compressor
B
Fixing nut
C
Transportation stay
1
Slightly loosen the fixing nut (B).
2
Remove the transportation stay (C) as shown in
3
Tighten the fixing nut (B) again.
CAUTION
If the unit is operated with the transportation stay attached,
abnormal vibration or noise may be generated.
4.5. Drain work
Check in the combination table under
page 1
whether drain work is allowed. In case drain work on your unit
is allowed and the installation site requires drain work, then follow the
guidelines below.
Drain kits for drainage are available as option.
If drain work from the outdoor unit causes trouble (for example, if
the drain water may splash on people) provide the drain piping
using a drain socket (optional).
Make sure the drain works properly.
NOTE
If drain holes of the outdoor unit
are covered by a mounting base
or by floor surface, raise the unit
in order to provide a free space
of more than 100 mm under the
outdoor unit.
4.6. Installing the unit
Since design pressure is 4.0 MPa or 40 bar, pipes of larger
wall thickness may be required. Refer to paragraph
"5.1. Selection of piping material" on page
Precautions for R410A
The refrigerant requires strict cautions for keeping the system
clean, dry and tight.
-
Clean and dry
Foreign materials (including mineral oils or moisture) should
be prevented from getting mixed into the system.
-
Tight
Read
"6. Precautions on refrigerant piping" on page 7
carefully and follow these procedures correctly.
Since R410A is a mixed refrigerant, the required additional
refrigerant must be charged in its liquid state. (If the refrigerant
is in state of gas, its composition changes and the system will
not work properly).
The connected indoor unit must be the EKHBRD unit.
figure
3.
"General information" on
6.
ERSQ+ERRQ011~016AAV1+Y1
Outdoor unit for air to water heat pump
4PW49635-1A
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