Instructions. V1.01
Page 13
October / 2013
9. Switch on the electrical supply to the unit. The red neon light will glow during the heating
cycle and will extinguish when the selected temperature is reached re-lighting again for
the next heating cycle.
10. During the heating cycle no water should escape to waste from either the expansion
relief or T&P valves.
11. Allow the heater to reach the selected temperature and when the indicator light has
extinguished, check the water temperature and re-check the water connections
adjusting as necessary.
12. Please pass these instructions on the person responsible for the building and it’s
management.
Maintenance
Precautions.
1. The Zip Varipoint II is an unvented electric water heater and only a competent person
(electrician or plumber), familiar with unvented systems, should carry out any servicing
and maintenance work on this unit
2. WARNING
When the neon indicator light is extinguished the unit is still connected
to the electricity supply, only by operating the ‘double pole isolating switch’ can the unit
be dis-connected from the supply.
3. The over temperature safety cut-out reset is located inside the cover. DO NOT reset the
over temperature cut-out until the cause of it’s operation has been correctly diagnosed
and corrected.
4. DO NOT use the water heater if it is suspected of being frozen. Switch off the electricity
supply if water ceases to flow and do not switch it back on until a competent person
(electrician or plumber), has checked that it is safe to do so.
5. The heater should be visually inspected regularly. This is particularly important if the
heater is located in a cupboard, roof space or any other concealed location. If there are
any signs of leaks or seepage the heater should be isolated from the water supply and
switched off from the electrical supply until a competent person (electrician or plumber),
has investigated the cause.
6. DO NOT block or restrict the discharge from any safety valve.
7. DO NOT tamper with any safety valve.
8. If water discharges from any safety valve, switch off the electrical supply to the unit, iso-
late the water supply and contact a competent person (electrician or plumber) familiar
with unvented systems.
9. Please note that lime scale forms more readily at higher temperatures. Damage or
failures caused by the formation of lime scale are specifically excluded under the
terms of the warranty. To reduce lime scale formation to a minimum the unit should
always be operated at the lowest convenient temperature. The ‘50°C’ temperature
setting is recommended.
