2. Plumbing Connection
Flush supply pipes to remove any debris before connecting the heater to the water
supply.
This unit is intended to be permanently connected to the mains water supply and
should not be connected by a detachable hose-set.
The water resistivity must not be less than 1300 Ωcm @15 C.
•
The maximum water supply temperature for this heater should not exceed 30
°
C.
•
Using the supplied washer with gauze, make a connection from the incoming
cold-water supply to the inlet side of the heater (blue collar). It is recommended a
service valve (not supplied) is fitted on the incoming supply to facilitate any future
maintenance.
•
Make a connection from the outlet side of the heater (red collar) to the hot water tap.
•
The supplied 1.6 l/min (litres per minute) flow restrictor must be fitted to the hot
water tap (compatible hot water tap required).
•
Turn on the cold water supply and open the hot water tap. Allow the water to flow for
several minutes to purge all air from the heater. This step is required every time the
heater has been drained for any reason, such as routine maintenance.
•
Close the hot water tap and check all connections are watertight under pressure.
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