- Check that the discharge pipe drains safely to waste and is readily visible.
- Check, in the case where some components are not factory fitted, that they are
marked so as to refer to the warning label on the water heater.
- Open all outlet taps.
- Turn on the mains water supply.
- Close taps in turn as water flow stabilises with no air bubbles.
- Check for leaks.
- Check that no water is passing through the safety valve(s).
- Test the operation of the safety valve(s) by lifting/turning the lever/knob, and
observing that water flows through and safely to waste.
- Switch on electricity and set thermostat to at 60°C to reduce the build up of scale
in hard water areas.
- Check the water heats up.
- Check that <<warning to user label>> is secure and visible on the heater and
related warning labels are fitted to the controls.
- Demonstrate operation to user, including operation of safety valve(s) and what to do
if it/they operate(s).
- Give this handbook to the user and discuss future maintenance.
- Drain and refill the entire system ensuring it is flushed in accordance with BS6700.
18
Fig. 6
1 2 3 4 5
T
K
W
Y
G
C
M
A
