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Installation instructions & user manual
9120-34378 v1.00 Sept 2020 - ZIP DEX Next / DEX12 Next
Technical support
Tel: 0345 6 005 005 email: [email protected] www.zipwater.co.uk
• The electrical power supply cable may be connected in the upper part or is surface
mounted . Only in such case, first follow the steps one through three according to
the description “Electrical connection from above” in chapter “Electrical connec-
tion” .
1 . Place the appliance on the heater bracket so that the threaded rod of the wall
bracket fits in the corresponding hole of the appliance . If necessary, slight cor-
rections are possible by carefully bending the threaded rod of the wall bracket .
However, it must be possible to screw on the water connection pipes of the appli-
ance without applying force .
2 . Screw the plastic knurled nut onto the threaded rod of the wall bracket .
3 . Screw the two ⅜ inch union nuts of the appliance‘s water connection pipes, each
with the ⅜ inch seal, onto the fittings .
4. Installation
Installing the appliance
(a)
closed
open
4 . Open the water supply line to the unit and slowly open (position “open“) the shut-
off valve (a) in the cold water connection piece . Check all connections for leaks .
5 . Next, open and close the hot water tapping valve several times until no more air
emerges from the line and all air has been eliminated from the instantaneous water
heater .
