En-17
Examples of multiple unit installation
Fig.
(Example 1)
Master unit
Slave unit1 Slave unit2
(Example 3)
Master
unit
Slave
unit1
Slave
unit2
(Example 2)
Master unit
Slave unit1 Slave unit2
CAUTION
To prevent the oil from settling in the stopped unit, install the pipes between the outdoor units so that they are level
or are tilted upward to the outdoor units.
Examples of multiple unit installation are shown below.
(1)
Installable patterns
a)
GOOD
GOOD
GOOD
Master
unit
Slave
unit 1
Slave
unit 2
Master
unit
Slave
unit 1
Slave
unit 2
Master
unit
Slave
unit 1
Slave
unit 2
To indoor unit
To indoor unit
To indoor unit
Non-installable patterns
b)
NO GOOD
Master
unit
Slave
unit 1
Slave
unit 2
To indoor unit
NO GOOD
Master
unit
Slave
unit 1
Slave
unit 2
To indoor unit
NO GOOD
Master
unit
Slave
unit 1
Slave
unit 2
To indoor unit
When the length between branch kits and the length of the branch kit and outdoor units is more than 2m,
(2)
provide a rise of 200mm or more on the gas pipe. However, there is no need to provide a rise on the pipe
connecting to the master unit even if the length exceeds 2m.
In case of less than 2m
a)
Master
unit
Slave
unit 1
Slave
unit 2
To indoor unit
Gas
pipe
Outdoor unit branch kit
Less than 2 m
In case of 2m or more
b)
Master
unit
Slave
unit1
Slave
unit2
To indoor unit
Gas pipe
2 m or less
Outdoor unit
branch kit
Rise
200 mm or more
2 m or more
9378945029-03_IM_EN.indb 17
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2011-9-20 16:25:53
2011-9-20 16:25:53
