Refrigerant Piping - Hitachi RAS-5FSN Installations- Und Betriebshandbuch

REFRIGERANT PIPING

14
Foundations
100
Min.100
Vibration-Proof
Position of Anchor Bolts
RAS-24/30FSN
RAS-24/30FXN
B B B
8-38 x 16
(Hole for Anchor Bolt)
A
NOTE:
Design the foundation as show above and confirm
that the foundation carries all of the feet of the unit.
12. REFRIGERANT PIPING
CAUTION:
-
Use refrigerant R410A in the refrigerant cycle. Do not
charge oxygen, acetylene or other flammable and
poisonous gases into the refrigerant cycle when
performing a leakage test or an air-tight test.
12.1. PIPING MATERIALS
1. Prepare field-supplied copper pipes.
2. The piping size should be selected using the following
figures.
614
Ø 30mm Anchor Bolt
100
Refrigerant Pipe
Min.100 Mortar Hole
(Ø 100mm x Depth 200mm)
Drainage
(Width 100mm x Depth 200mm)
Drainage
Rubber
RAS-20FSN
RAS-16/20FXN
B B
Correct Foundation
MODEL
RAS-5FSN
RAS-8FSN(E)/FXN(E)
RAS-10FSN(E)/FXN(E)
RAS-16FSN
RAS-20FSN
RAS-16/20FXN
RAS-24FSN/FXN
RAS-30FSN/FXN
RAS-5~16FSN(E)
RAS8/10FXN(E)
B
6-38 x16
(Hole for Anchor Bolt)
A
Incorrect Foundation
-
These types of gases are extremely dangerous and can
cause an explosion. It is recommended that compressed
air, nitrogen or refrigerant be used for these types of
tests.
-
Check to ensure that no pressure exists inside the stop
valve before removing the flange.
3. Select clean copper pipes. Make sure there is no dust
and moisture inside. Before connecting pipes, blow the
inside of the pipes with nitrogen or dry air, to remove
any dust and foreign materials.
A B
368
688
948
760
824
723
4-38 x16
(Hole for Anchor Bolt)
A