2 . SELECTING INSTALLATION SITE
Consider the following requirements when choosing the installation location and obtain the cus-
tomer’s consent:
•
The location must be able to withstand the weight of the Branch Selector unit.
• The location must allow inspection holes to be installed on the control box side. (A separate opening is
necessary when lowering the product.)
•
There must be adequate space in which to perform installation and service work. (
Refer to Fig . 2 .
)
•
The length of pipe to the indoor unit and outdoor unit must be less than or equal to the permissible
pipe length (as listed in the installation manual included with the outdoor unit).
• Refrigerant circulated through the pipes can generate sound. Ensure that the installation takes neces
-
sary precautions when installing in a sound sensitive applications.
BSF4Q
Arrow view A
20 (500)
or more (*1)
Branch
Selector
unit top
20 (500)
or more (*1)
2-3/4 (70)
Control box
4 (100) or more
Inspection door
18 (450) × 18 (450)
Control box and
EV coil
Maintenance
space
4 (100)
or more
Inspection door
18 (450) × 18 (450)
Control bo
x
Branch
Selector
unit top
8 (200) or more
2-3/4 (70)
<Control box at back side position>
<Control box at right side position>
(The symmetric layout for left side position.)
Unit: in. (mm)
Indoor unit
side pipe (*1)
3/16 (5) or more
4-1/2 (115) or more
3/16 (5) or more
A
(*1) Leave enough space to connect the field pipes.
See the next page for Fig. 2.
5
English
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