Hitachi RPI-4.0FSN4E - 8 PIPING WORK AND REFRIGERANT CHARGE; For heat recovery systems (3 pipes); For heat pump systems (2 pipes)

Piping direction
Fix the pipes adequately in order to avoid vibration and excessive
force to the valve.
1 The pipes can be installed in three directions (front, rear or
bottom side) from the bottom base. For vibration protection,
properly x the piping connection and check that no exces-
sive force is applied to the stop valve.
Front side
Rear side
Bottom side
Bottom base
2 Operation of the stop valve should be performed according
the specied in this manunal.
3 Connect the pipes according to the tables.
4 Completely seal the penetration part at the bottom of the
pipes with insulation in order to prevent rain water from enter-
ing the conduit.
For heat pump systems (2 pipes)
For piping from bottom base
For piping from front or
rear side piping cover
Piping cover
(attached to unit)
Gas pipe
Liquid pipe
Cover the gap
with insulations
Gas pipe
Liquid pipe
Piping
cover
Cover the gap with a
packing (eld-supplied)
For heat recovery systems (3 pipes)
For piping from bottom base
For piping from front or
rear side piping cover
Piping cover
(attached
to unit)
Gas pipe
Liquid pipe
Cover the gap
with insulations
Gas pipe
Liquid pipe
Piping
cover
Cover the gap with a
packing (eld-supplied)
Heat recovery systems (3 pipes)
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 liquid piping connection
Refrigerant gas piping connection (High/Low pressure)
Refrigerant gas piping connection (High/Low pressure)
Square holes at
front and back sides
Refrigerant liquid piping connection
Refrigerant gas piping connection
(High/Low pressure)
85
82 250
130 108
132
110
19065
289
275
2 Control cable outlets
(∅33 knockout hole)
Power source cable outlet
(∅65 knockout hole)
Refrigerant piping outlet
(high/low pressure gas, liquid)
(knockout square hole)
Refrigerant piping outlet
(Low pressure gas)
(mm)
Model A B C D E F G
RAS-8FSXN1E
∅19.05 ∅15.88 ∅9.52
150 150 340 205
RAS-10FSXN1E
∅22.2 ∅19.05 ∅9.52
RAS-12FSXN1E
∅25.4 ∅22.20 ∅12.70
170 170 325 200RAS-14FSXN1E
∅25.4 ∅22.20 ∅12.70
RAS-16FSXN1E
∅28.58 ∅22.20 ∅12.70
(mm)
Model A B C D E F G
RAS-5FSXNH(E)
∅15.88 ∅12.70 ∅9.52
150 150
340 205
RAS-6FSXNH(E)
∅19.05 ∅15.88 ∅9.52
RAS-8FSXNH(E)
∅19.05 ∅15.88 ∅9.52
170 170RAS-10FSXNH(E)
∅22.2 ∅19.05 ∅9.52
RAS-12FSXNH(E)
∅25.4 ∅22.20 ∅12.70
33
PMML0294A rev.2 - 07/2014
Piping work and refrigerant charge
ENGLISH
PMML0294A_rev.2_02-2014.indb 33 14/07/2014 12:28:23