10
Zip Varipoint III Installation, Maintenance and User Instructions - November 2010
Electrical
1 Switch off the main electricity supply before carrying out any work
involving a live circuit or access to components that may be live.
2 The Zip Varipoint is pre-wired with a length of 3-core cable suitable for
connection to a mains 240v supply. Connection must be made to a
double-pole isolating switch on a dedicated circuit or a double pole
switched spur.
3 If the cable length is insufficient it is recommended that the entire length
is replaced and no joins made to the original. To replace the cable:
a.
Prise the temperature control knob off the spindle.
b.
Release the one screw revealed by the knob.
c.
Remove the cover by sliding forwards.
d.
Pass the new cable through the entry point of the cover.
e.
Remake the connections.
f.
Ensure the cable is securely clamped.
g.
Refasten the cover.
Do not switch on the electrical supply until the water heater is full
of water.
Commissioning
1 Check that all the requirements under “Installation Requirements” have
been met.
2 Check that all the water and electrical connections are correct and tight.
3 Open a hot water tap.
4 Open the isolating valve and permit the heater to fill.
5 When the water flows from the hot tap - turn off the hot tap.
6 Check for leaks, rectify as necessary.
7 Check the operation of the safety valve and the temperature and
pressure relief valve.
Neon
Indicator
Heating
Element
Thermostat
Cut Out
240V
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