Refrigerant Pipe Connection - Hitachi RAS-8FSXN1E Manuel D'utilisation

PIPING WORK AND REFRIGERANT CHARGE

8.1.2 Refrigerant pipe connection

Perform the piping connection work for each outdoor unit. Prepare the refrigerant pipe in the field for the piping work.
Heat pump systems (2 pipes)
(All measurements are in mm)
Square holes at
front and back sides
Model
RAS-8FSXN1E ∅19.05
RAS-10FSXN1E ∅22.2
RAS-12FSXN1E ∅25.4
RAS-14FSXN1E ∅25.4
RAS-16FSXN1E ∅28.58
Heat recovery systems (3 pipes)
Square holes at
front and back sides
Model A
RAS-8FSXN1E ∅19.05 ∅15.88
RAS-10FSXN1E ∅22.2 ∅19.05
RAS-12FSXN1E ∅25.4 ∅22.20 ∅12.70
RAS-14FSXN1E ∅25.4 ∅22.20 ∅12.70
RAS-16FSXN1E ∅28.58 ∅22.20 ∅12.70
18 PMML0392B rev.1 - 07/2016
This piping connection is NOT used
at heat pump system (2 pipes)
Refrigerant gas piping connection
(High/Low pressure)
Refrigerant liquid piping connection
Refrigerant piping and
wiring connection holes
(knockout holes)
Refrigerant gas piping connection
(High/Low pressure)
Refrigerant liquid piping connection
A B C D
∅9.52
∅9.52 150 150 340
∅12.7
∅12.7
170 170 325
∅12.7
Refrigerant gas piping
connection
(Low pressure)
Refrigerant gas piping connection
(High/Low pressure)
Refrigerant liquid piping connection
Refrigerant piping and
wiring connection holes
(knockout holes)
Refrigerant gas piping connection
(High/Low pressure)
Refrigerant gas piping connection
(High/Low pressure)
Refrigerant liquid piping connection
B C D E
∅9.52
150 150 340 205
∅9.52
170 170 325 200
2 Control cable outlets
(∅33 knockout hole)
E F Model
RAS-5FSXNHE
205 RAS-6FSXNHE
RAS-8FSXNHE
RAS-10FSXNHE
200
RAS-12FSXNHE
Refrigerant piping outlet
(Low pressure gas)
2 Control cable outlets
(∅33 knockout hole)
F G Model
RAS-5FSXNHE ∅15.88
RAS-6FSXNHE ∅19.05
RAS-8FSXNHE ∅19.05
RAS-10FSXNHE ∅22.2
RAS-12FSXNHE ∅25.4
Power source cable outlet
(∅65 knockout hole)
65 190
130 108
82 250
Refrigerant piping outlet
(high/low pressure gas, liquid)
(knockout square hole)
A B C D
∅15.88 ∅9.52
150 150
∅19.05 ∅9.52
∅19.05 ∅9.52
∅22.2 ∅9.52 170 170
∅25.4 ∅12.7
Power source cable outlet
(∅65 knockout hole)
65 190
130 108
82 250
Refrigerant piping outlet
(high/low pressure gas, liquid)
(knockout square hole)
A B C D
∅12.70 ∅9.52
150 150
∅15.88 ∅9.52
∅15.88 ∅9.52
∅19.05 ∅9.52 170 170
∅22.20 ∅12.70
110
E F
340 205
110
E F G
340 205