83
4
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NOTE: The refrigerant pipes must be connected to the valves on the outdoor unit with as little stress as
possible.
IMPORTANT: Before you continue, it is essential that you read the following instructions carefully.
4. Now tighten the bottom screw connector first and then the top screw connector using the open-
ended spanner. Hold the points marked using an open-ended spanner and turn the nuts only at
the points marked using an open-ended spanner (Select the appropriate spanner according to the
dimensions of the connector).
• Ensure that the screw connectors do not skew as you tighten them and work quickly. See the next
page for the proper torque.
IMPORTANT: Since the coupling works with tapping rings, it may leak if you undo and reconnect the pipes.
This will also void the warranty.
Coupling size
(last 2 part numbers)
Pound-force foot
(1bf-ft)
Newton meter
(N-m)
Kilogram-force meter
(kgf-m)
-06 (9.5mm dash size) 18 - 20 24.4 - 27.1 2.4 - 2.7
-08 (12.7mm dash size) 30 - 35 40.6 - 47.4 4.1 - 4.8
-12 (19.1mm dash size) 45 - 50 61.0 - 67.7 6.2 - 6.9
-16 (25.4mm dash size) 60 - 65 81.3 - 88.1 8.2 - 8.9
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.
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