Hitachi RPI-6.0FSN4E - 9 ADDITIONAL REFRIGERANT CHARGE; 9.1 AIR-TIGHT TEST

• For 3 units combination
For heat pump systems (2 pipes)
Front side piping connection Downward piping connection
H2
H1
G1
G2
I
E
K
G3
I
E
K
F
K
H3
F
K
E
≥500 mm
K
H2
G1
G2
G3
I
E
F
F
H1
H3
E
I
A
Outdoor unit A
F
Liquid piping (eld-supplied)
H2
Piping connection kit 2 (liquid)
B
Outdoor unit B
G1
Piping connection kit 1 (high/low pressure gas)
H3
Piping connection kit 3 (liquid)
C
Outdoor unit C
G2
Piping connection kit 2 (high/low pressure gas)
I
Accessory pipe (L-shaped)
D
Outdoor unit D
G3
Piping connection kit 3 (high/low pressure gas)
J
Accessory pipe (Z-shaped)
E
High/Low pressure gas piping (eld-supplied)
H1
Piping connection kit 1 (liquid)
K
Accessory pipe
For heat recovery systems (3 pipes)
Front side piping connection Downward piping connection
A
B
C
D
E1
E2
E2
E1
F
F
B
G1
H1
I1
G2
H2
I2
G3
H3
I3
J
J
J
J
K
K
K
K
≥500mm
K
E1
I1
B
C
D
G1
H1
G2
H2
J
E2
E1
G3
H3
E2
E1
F
J
I3
F
J
I2
A
A
Outdoor unit A
F
Liquid piping (eld-supplied)
H3
Piping connection kit 3
(low pressure gas)
B
Outdoor unit B
G1
Piping connection kit 1
(high/low pressure gas)
I1
Piping connection kit 1 (liquid)
C
Outdoor unit C
G2
Piping connection kit 2
(high/low pressure gas)
I2
Piping connection kit 2 (liquid)
D
Outdoor unit D
G3
Piping connection kit 3
(high/low pressure gas)
I3
Piping connection kit 3 (liquid)
E1
High/low pressure gas piping
(eld-supplied)
H1
Piping connection kit 1
(low pressure gas)
J
Accessory pipe (L-shaped)
E2
Low pressure gas piping (eld-supplied)
H2
Piping connection kit 2
(low pressure gas)
K
Accessory pipe
43
PMML0294A rev.2 - 07/2014
Piping work and refrigerant charge
ENGLISH
PMML0294A_rev.2_02-2014.indb 43 14/07/2014 12:28:28