Hitachi RAS-8FSXNS2E Installation & Operation Manual page 35

Keep the straight-line
distance of 500mm or
more for piping after the
piping connection kit.
Indoor unit
side
Keep the straight-line
distance of 500mm or
more for piping after the
piping connection kit.
Indoor unit
2 Place the piping connection kit lower than the outdoor unit piping connection.
In case that the piping connection kit is placed higher than the outdoor unit piping connection,
keep 300mm (maximum) between the piping connection kit and the bottom of the outdoor
unit. Also, provide the oil trap (minimum 200mm) between the piping connection kit and the
outdoor unit.
PMML0628 rev.0 - 05/2023
Outdoor
Unit A
Piping connection kit 1
: If it exceeds 100mm, follow step 7.
*1
Outdoor
Unit A
Indoor unit
side
Piping
Piping
connection
connection kit 2
kit 1
Outdoor Outdoor
Unit A Unit B
Piping
side connection kit 2
Piping
connection kit 1
: If it exceeds 100mm, follow step 7.
*1
Upstream side
The height difference
between outdoor units
Outdoor Outdoor
must be 2.0m or less.
Unit B Unit C
Piping connection kit 2
Outdoor Outdoor
Unit B Unit C
LA LB LC
Piping
connection kit 3
Upstream side
The height difference
between outdoor units
Outdoor Outdoor must be 2.0m or less.
Unit C Unit D
Piping
connection kit 3
*1
Outdoor
Unit D
LD
*1
3
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