AP3/30_AP3/50_AP3/80_AP3/100_Instructions. V1.01 Page 13 August / 2012
11. Switch on the electrical supply to the unit. The pilot light will illuminate to indicate that
the elements are operating.
12. During the heating cycle no water should escape to waste from either the expansion relief
orT&Preliefvalves.
13. Allow the heater to reach the selected temperature when the pilot light will extinguish.
Check the water temperature and re-check water connections adjusting as necessary.
14. Pass these instructions to the person responsible for the building management.
Maintenance
1. The Zip Aquapoint is an unvented electric water heater and a competent person, familiar
with unvented systems, should carry out all servicing and maintenance.
2. Do not remove the electrical cover panel whilst the unit is connected to the electrical supply.
3. Do not reset the over temperature cut-out until the cause of its operation has been
diagnosed and necessary repairs have been undertaken.
4. Do not use the water heater if it is suspected of being frozen. Switch off the electrical
supplyifwaterceasestoowanddonotswitchonagainuntilacompetentpersonhas
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 is
any sign of leaks or seepage the heater should be isolated from the water supply and
switched off from the electrical supply until a competent person 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,
isolate the water supply and contact a competent person familiar with unvented systems.
9. Please note that lime-scale deposits form more readily at higher temperatures. Damage
orfailurescausedbytheformationoflime-scalearespecicallyexcludedunder
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 ‘E’ temperature setting is
recommended.
10. If the unit has been commissioned and is to be unused for more than two weeks with the
power supply still connected the thermostat should be set to ‘*’ to maintain a temperature
of approx. 9ºC and protect the unit from freezing. Note: this protection does not extend to
connecting pipework. It is recommended that the cold supply is turned off and several
litres of water drawn off through a hot tap. Note: The cold supply must be re-opened
prior to use. If power has been disconnected it is recommended that the unit is drained
(see draining).
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