Installation Manual

Page 24
Piping
Connection
Coup
ling
siz
e (last 2 part
numb
ers)
Po
und-force foot(1bf-ft)
Newton
meter(N-m
)
Kilog
ram-force meter(
kgf-m)
18 - 20
30 - 35
45 - 50
60 - 65
24.4 - 2
7.1
40.6 - 47.4
61.0 - 6
7.7
81.3 - 8
8.1
2.4 - 2.7
4.1 - 4.8
6.2
- 6.9
8.2
- 8.9
-06(9.5mm dash size)
-08(12.7mm dash size)
-12(19.1mm dash size)
-16(25.4mm dash size)
Fig.6.6
Fig.6.5
After completing steps 1- 4, check that all
the connections are sealed correctly using
leak detection spray or soap suds. If any
bubbles form,the system has a leak and the
screw connectors must be retightened
using an open-ended spanner.
5. Now remove the cover on the top valve
using a 19 mm open-ended spanner. Open
the valve by turning it counter-clockwise as
far as it will go using a 5 mm Allen key. The
valve is now open. If the valve is not opened
fully, the system may malfunction and suffer
damage. Screw the cover back on to the top
valve and tighten it well to ensure that it is
properly sealed. See Fig.6.5.
6. Now remove the cover on the bottom valve
using a 19 mm open-ended spanner. Open
the valve by turning it counter-clockwise as
far as it will go using a 5 mm Allen key. The
valve is now open. If the valve is not opened
fully, the system may malfunction and suffer
Damage. Screw the cover back on to the
bottom valve and tighten it well to ensure
that it is properly sealed. See Fig.6.6.
Important! The conical ring on the valve
has an important sealing function together
with the sealing seat in the caps. Ensure
that you do not damage the cone and that
you keep the cap free of dirt and dust.
7. After completing steps 1- 6, check that all
the connections are sealed correctly using
leak detection spray or soap suds. If any
bubbles form, the system has a leak and
the screw connectors must be retightened
using an open- ended spanner.
8. Start the equipment so that the operating
pressures build up inside it. Check all the
connectors again for signs of leaks
a) during cooling mode
b) in heating mode.
If any bubbles form, the system has a leak
and the screw connectors must be
retightened using an open-ended spanner.
For more details visit www.MrCool.com