Oversink and Undersink Water Heater
- 15-
6.4
Drain water heater
Turn off incoming mains stop cock.
Using hose and suitable containers, drain all water from the water heater and pipework using drain cocks.
6.5
Cleaning the water heater
Drain the system, then fill and drain to flush as many times as recommended by chlorination product
manufacturer.
Refill system.
6.6
Setting And Testing Controls
Switch on water heater electric isolating switch.
For commissioning use the factory default setting, no changes parameters should be required.
Set indirect water heater into operation, and when hot check for leaks.
Check operating of any open flue appliances that could be affected by air movement through the water heater.
6.7
Handing Over
The installer should re-check the system and ensure it’s completely satisfactory before demonstrating to the end
user.
The end user should be aware of the following:
The function safety relief valve will cause steam and scalding water to be emitted from the discharge pipes.
That the tundish is supplied as a visual identification for over pressure.
The procedure to follow in event of over pressure.
7
MAINTENANCE INSTRUCTIONS
(qualified personnel only)
WARNING: the repair and/or maintenance operations must only be performed by qualified personnel. Only use
genuine spare parts. Prior to undertaking any maintenance operations, turn off and disconnect the equipment
from the mains electrical supply before commencing any work on the water heater. We recommend that you
purchase any spare parts from only authorised dealers or directly from the Manufacturer.
7.1
General
Inspect regularly the connection between the supply plug and wiring.
If the system is not used for a long period, empty the water heater in order to avoid freezing.
It is advised to clean regularly the inside part of the vessel and the electric heating element in order to preserve
the efficiency.
Before turning off the system for a long period you must:
Remove the current supply;
Drain all the water from the water heater and the pipes;
Close all valves;
Inspect regularly all inside components.
7.2
Control/Replacement of anode
The Anode is very important for protecting the tank against corrosion. Anode wear is proportional to the hardness of the
water.
Make sure to check its efficiency at least every two years or in any case according to the quality of the water. Protection
efficiency is linked to its integrity. Check the anode for degradation and replace if excessively worn. Spare parts are
available from the distributor and/or the manufacturer.
IMPORTANT: Remember that damage caused by excessive anode wear (insufficient tank protection) is not due to
manufacturing defects and is therefore not covered by the warranty.
