Hitachi RASM-2VRE Manual De Instrucciones página 23

TRANSPORTATION AND HANDLING
Maximum allowable pressure and high pressure cut-out value:
Maximun allowable
Refrigerant
pressure (MPa)
R32 4.15
?
N O T E
The label for the vessel under PED are attached on the high pressure
vessel. The pressure vessel capacity and vessel category are indicated
on the vessel.
Location of high pressure switch
Compressor
?
N O T E
The high pressure switch is indicated on the electrical wiring diagram in
the outdoor unit as HPS connected to printed circuit board (PCB1) in the
outdoor unit.
Structure of high pressure switch
Contact point
Connected to the electrical wire
!
D A N G E R
• Do not change the high-pressure switch locally or change the
high pressure cut-out set value locally. If changed, it will cause
serious injury or death due to explosion.
• Do not attempt to turn service valve rod beyond its stop.
4 TRANSPORTATION AND HANDLING
When hanging the unit, ensure a balance of the unit, check
safety and lift it up smoothly
Do not remove any packing materials.
Hang the unit under packing condition with two ropes.
For safety reasons ensure that the outdoor unit is lifted smoothly
and does not lean
Model Gross weight (kg)
RASM-2VRE 90
RASM-3VRE 92
3 PMML0506 rev.2 - 01/2021
High pressure switch
cut-out value (MPa)
4.00 ~ 4.10
Pressure detected
RASM-2VRE
RASM-3VRE
5 BEFORE OPERATION
!
C A U T I O N
• Supply electrical power to the system for approximately 12 hours
before start-up or a long shut-off. Do not start the system immediately
after power supply, it may cause a compressor failure because the
compressor is not heated well.
• When the system is started after a shut-off longer that approximately
3 months, it is recommended to check the system by your service
contractor.
• Turn OFF the main switch when the system is to be stopped for a long
period of time: If the main switch is not turned OFF, electricity will be
used, because the oil heater is always energised during compressor
stopping.
• Make sure that the outdoor unit is not covered with snow or ice. If
covered, remove it by using hot water (approximately 50°C). If the
water temperature is higher that 50ºC, it will cause damage to plastic
parts.
5.1 FACTORY-SUPPLIED UNIT COMPONENTS
Accessory Image
Gasket
CD-ROM
Instruction
manual
Instruction
manual
Declaration of
-
conformity
?
N O T E
• The previous accessories are supplied inside the unit.
• If some of these accessories are not packed with the unit or any
damage to the unit is detected, please contact your dealer.
Qty. Purpose
Two gaskets for each space
4 heating connections
(inlet/outlet)
With the detailed Installation
1
and operation manual
Basic instructions for the
1
installation of the device.
Additional safety manual
for R32 refrigerant air
1 conditioner and heat
pump according to
IEC 60335-2-40:2018
1 -