Refrigerant Cycle; Units Installation - Hitachi SET FREE MINI RAS-3 Manuel D'installation

9

REFRIGERANT CYCLE

12
9. REFRIGERANT CYCLE
Example of Refrigerant Cycle.- (1 Outoor Unit 5Hp – 2 Indoor Unit 2.5Hp).
(For more information refer to Technical Catalogue of FSVNE units).
No. Part Name
1 Compressor
2 Outdoor Heat Exchanger
3 Receiver
4 Expansion Valve
5 Reversing Valve
6 Strainer
7 Distributor
8 Check Joint
9 Hight Pressure Switch
10 Stop Valve (Gas Line)
11 Stop Valve (Liquid Line)

10. UNITS INSTALLATION

10.1. OUTDOOR UNITS INSTALLATION

CAUTION:
− Transport the products as close to the installation
location as practical before unpacking.
− Do not put any material on the products.
− Apply four lifting wires to the outdoor, when lifting it by
crane

WARNING:
− Install the outdoor unit with sufficient clearance
around it for operation and maintenance as shown in
the next figures.
− Install the outdoor unit where good ventilation is
available
− Do not install the outdoor unit where is a high level of
oil mist, salty air or sulphurous atmosphere.
− Install the outdoor unit as far as practical (being at
least 3 meters) from electromagnetic wave radiator
(such as medical equipment).
No. Part Name
12 Low Pressure Sensor
13 Hight Pressure Sensor
14 Strainer
15 Distributor - Solenoid Valve
16 Capillary tube
17 Silencer
18 Check Valve
19 Indoor Heat Exchanger
20 Mikrocomputerstyret ekspansionsventil (indendørsenhed)
21 Branch Pipe
− Keep clearance between the units of more than
50mm, and avoid obstacles that may hamper air
intake, when installing more than one units together.
− Install the outdoor unit in the shade or not exposed to
direct sunshine or direct radiation from high
temperature heat source.
− Do not install the Outdoor Unit in a space where a
seasonal wind directly blows to the Outdoor fan.

CAUTION:
− Check to ensure that the foundation is flat, level and
sufficiently strong.
− Install the unit in a restricted area not accessible by
the general public
− Aluminum fins have very sharp edges. Pay attention
to the fins to avoid injury.
Refrigerant Flow Direction (Cooling)
Refrigerant Flow Direction (Heating)
Field Refrigerant Piping
Flare Connection
Brazing Connection