Hitachi RPI-4.0FSN4E - 8 PIPING WORK AND REFRIGERANT CHARGE; For heat recovery systems (3 pipes)

• or heat pump systems (2 pipes)
Model RAS-50FSXN1E RAS-52FSXN1E RAS-54FSXN1E
Combination unit
Outdoor unit A RAS-14FSXN1E RAS-14FSXN1E RAS-16FSXN1E
Outdoor unit B RAS-14FSXN1E RAS-14FSXN1E RAS-14FSXN1E
Outdoor unit C RAS-12FSXN1E RAS-12FSXN1E RAS-12FSXN1E
Outdoor unit D RAS-10FSXN1E RAS-12FSXN1E RAS-12FSXN1E
Piping connection kit MC-40AN1
Piping size
(Ø mm)
a
High/Low pressure gas 38.1 (38.1-41.3) 38.1 (38.1-41.3) 38.1 (38.1-41.3)
Liquid 19.05 (19.05-22.2) 19.05 (19.05-22.2) 19.05 (19.05-22.2)
b
High/Low pressure gas 31.75 (31.75-34.9) 31.75 (31.75-34.9) 31.75 (31.75-34.9)
Liquid 19.05 (19.05-22.2) 19.05 (19.05-22.2) 19.05 (19.05-22.2)
c
High/Low pressure gas 25.4 (25.4-28.58) 25.4 (25.4-28.58) 28.58 (28.58-31.75)
Liquid 12.7 (12.7-15.88) 12.7 (12.7-15.88) 12.7 (12.7-15.88)
d
High/Low pressure gas 25.4 (25.4-28.58) 25.4 (25.4-28.58) 25.4 (25.4-28.58)
Liquid 12.7 (12.7-15.88) 12.7 (12.7-15.88) 12.7 (12.7-15.88)
e
High/Low pressure gas 25.4 (25.4-28.58) 25.4 (25.4-28.58) 25.4 (25.4-28.58)
Liquid 12.7 (12.7-15.88) 12.7 (12.7-15.88) 12.7 (12.7-15.88)
f
High/Low pressure gas 22.2 (22.2-25.4) 25.4 (25.4-28.58) 25.4 (25.4-28.58)
Liquid 9.52 (9.52-12.7) 12.7 (12.7-15.88) 12.7 (12.7-15.88)
• For heat recovery systems (3 pipes)
Model RAS-50FSXN1E RAS-52FSXN1E RAS-54FSXN1E
Unit A RAS-14FSXN1E RAS-14FSXN1E RAS-16FSXN1E
Unit B RAS-14FSXN1E RAS-14FSXN1E RAS-14FSXN1E
Unit C RAS-12FSXN1E RAS-12FSXN1E RAS-12FSXN1E
Unit D RAS-10FSXN1E RAS-12FSXN1E RAS-12FSXN1E
Connection kit MC-40XN1
Piping sizes
(Ø mm)
a
Gas (low pressure) 38.1 (38.1-41.3) 38.1 (38.1-41.3) 38.1 (38.1-41.3)
Gas (high/low pressure) 31.75 (31.75-34.9) 31.75 (31.75-34.9) 31.75 (31.75-34.9)
Liquid 19.05 (19.05-22.2) 19.05 (19.05-22.2) 19.05 (19.05-22.2)
b
Gas (low pressure) 31.75 (31.75-34.9) 31.75 (31.75-34.9) 31.75 (31.75-34.9)
Gas (high/low pressure) 28.58 (28.58-31.75) 28.58 (28.58-31.75) 28.58 (28.58-31.75)
Liquid 19.05 (19.05-22.2) 19.05 (19.05-22.2) 19.05 (19.05-22.2)
c
Gas (low pressure) 25.4 (25.4-28.58) 25.4 (25.4-28.58) 28.58 (28.58-31.75)
Gas (high/low pressure) 22.2 (22.2-25.4) 22.2 (22.2-25.4) 22.2 (22.2-25.4)
Liquid 12.7 (12.7-15.88) 12.7 (12.7-15.88) 12.7 (12.7-15.88)
d
Gas (low pressure) 25.4 (25.4-28.58) 25.4 (25.4-28.58) 25.4 (25.4-28.58)
Gas (high/low pressure) 22.2 (22.2-25.4) 22.2 (22.2-25.4) 22.2 (22.2-25.4)
Liquid 12.7 (12.7-15.88) 12.7 (12.7-15.88) 12.7 (12.7-15.88)
e
Gas (low pressure) 25.4 (25.4-28.58) 25.4 (25.4-28.58) 25.4 (25.4-28.58)
Gas (high/low pressure) 22.2 (22.2-25.4) 22.2 (22.2-25.4) 22.2 (22.2-25.4)
Liquid 12.7 (12.7-15.88) 12.7 (12.7-15.88) 12.7 (12.7-15.88)
f
Gas (low pressure) 22.2 (22.2-25.4) 25.4 (25.4-28.58) 25.4 (25.4-28.58)
Gas (high/low pressure) 19.05 (19.05-22.2) 22.2 (22.2-25.4) 22.2 (22.2-25.4)
Liquid 9.52 (9.52 - 12.7) 12.7 (12.7-15.88) 12.7 (12.7-15.88)
Perform the installation of the outdoor unit and piping connection according to the gure. Refer to the table for the outdoor unit model,
the piping connection kit model and the piping diameter.
If the main refrigerant pipe specied in the table is not available at the installation location, select the size given in brackets. In this
case, prepare a suitable reducer.
39
PMML0294A rev.2 - 07/2014
Piping work and refrigerant charge
ENGLISH
PMML0294A_rev.2_02-2014.indb 39 14/07/2014 12:28:25