Coast Air A-CAD09-0 Manual Del Usuario página 32

Coupling size(last 2 part numbers) Pound-force foot(1bf-ft)
-06(9.5mm dash size)
-08(12.7mm dash size)
-12(19.1mm dash size)
-16(25.4mm dash size)
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 wrench.
5. Now remove the cover on the top valve
using a 19 mm open-ended wrench. Open
the valve by turning it counterclockwise 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.
6. Now remove the cover on the bottom valve
using a 19 mm open-ended wrench. Open
the valve by turning it counterclockwise 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.
www.coastair-ac.com
Newton meter(N-m)
18 - 20
24.4 - 27.1
30 - 35 40.6 - 47.4
61.0 - 67.7
45 - 50
60 - 65 81.3 - 88.1
damage. Screw the cover back on to the
bottom valve and tighten it well to ensure
that it is properly sealed.
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 wrench.
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 wrench.
32
IOM - DIY Heat Pump Series
Kilogram-force meter(kgf-m)
2.4 - 2.7
4.1 - 4.8
6.2 - 6.9
8.2 - 8.9