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Under installation conditions, excessive torque can damage the nut.
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When flared joints are reused, the flare part should be re-fabricated.
6 CONNECTING THE WATER PIPING
6.1 Connecting the space heating (cooling) water piping
To facilitate service and maintenance, two shut-off valves (field supply) and one overpressure bypass valve should
be installed. The two shut-off valves should be mounted on the space heating (cooling) water inlet and outlet pipe
of indoor unit.
1. Connecting the shut-off valves to the indoor units.
2. Connecting the shut-off valves to the space heating (cooling) water pipes.
6.2 Connecting the domestic water piping
The shut-off valve should be mounted on the domestic cold water inlet.
1. Connect the shut-off valve to the cold water inlet of indoor unit.
2 Connect the cold water pipe to the shut-off valve.
3 Connect the domestic hot water pipe to the hot water outlet of indoor unit.
CAUTION
Fig.6-1
Fig.6-2
14
V.2
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