Hitachi YUTAKI RWM-2R1E User Manual

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Refrigerant piping size
Piping connection size of outdoor unit & indoor unit
Indoor unit
Model
Pipe size
Model
Pipe size
Gas pipe Liquid pipe Gas pipe Liquid pipe
(4-6)HP Ø 15.88 (5/8”) Ø 9.52 (3/8”) (3.0-6.0)HP Ø 15.88 (5/8”) Ø 9.52 (3/8”)
8HP
Ø 25.4 (1”)
Ø 9.52 (3/8”) 8HP
Ø 25.4 (1”)
Ø 9.52 (3/8”)
10HP Ø 12.7 (1/2”) 10HP Ø 12.7 (1/2”)
6.4.1.1 Refrigerant charge before shipment (W
0
(kg))
YUTAKI S/S COMBI
Outdoor unit model W
0
(kg)
RAS-4WH(V)NPE 3.3
RAS-(5/6)WH(V)NPE 3.4
RAS-8WHNPE 5.0
RAS-10WHNPE 5.3
YUTAKI S80
Model W
0
(kg) R410A W
0
(kg) R134a
Outdoor unit
RAS-4WH(V)NPE 3.3 -
RAS-(5/6)WH(V)NPE 3.4 -
Indoor unit RWH-(4.0-6.0)(V)NF(W)E - 1.9
YUTAKI M
Model W
0
(kg)
RASM-4(V)NE 2.8
RASM-(5/6)(V)NE 3.1
6.4.2 Precautions in the event of gas refrigerant leaks
The installers and those responsible for drafting the specications are obliged to comply with local safety codes and regulations in
the case of refrigerant leakage.
! CAUTION
• Check for refrigerant leakage in detail. If a large refrigerant leakage occurred, it would cause difculty with breathing or harmful gases would occur
if a re were in the room.
• If the are nut is tightened too hard, it may crack over time and cause refrigerant leakage.
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Maximum permitted concentration of HFCs
The refrigerant R410A (charged in the outdoor unit) and the refrigerant R134a (in case of YUTAKI S80 indoor unit) are incombustible
and non-toxic gases. However, if leakage occurs and gas lls a room, it may cause suffocation.
The maximum permissible concentration of HFC gas according to EN378-1 is:
Refrigerant Maximum permissible concentration (kg/m
3
)
R410A 0.44
R134a 0.25
REFRIGERANT AND WATER PIPING
PMML0575 rev.2 - 03/2022
54

Hitachi YUTAKI RWM-2R1E Specifications

General

Brand	Hitachi
Model	YUTAKI RWM-2R1E
Category	Air Conditioner
Language	English