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Check for obvious signs of damage to the cylinder and controls, and also
that the controls fitted correspond with the references quoted in these
instructions.
Ensure that the Drain Cock at the base of the appliance is closed before
commencing.
1) ProTech Models Only. Ensure that the ProTech anti-corrosion system is
connected to the electrical supply;
2) Open all outlet taps;
3) Turn on mains water supply and allow the water heater to fill;
4) Ensure that the hot water system is flushed in accordance with BS 6700;
5) Close taps in turn after having purged the system of air;
6) Check for leaks around the controls and immersion heaters and again
after the unit has heated up;
7) Check that no water is passing to waste through the relief valves;
8) Ensure that the line strainer (situated in the pressure reducing valve) is
clear of installation debris and clean if necessary;
9) Test the operation of the temperature & pressure relief and expansion
valves by lifting/turning the manually operated test lever/cap and
observing that water flows through freely and safely to waste;
10) Check that the pressure in the expansion vessel is correct;
11) Check that the discharge pipe is plumbed so that it falls continuously
and that no taps, valves or other shut off devices are installed in the
pipe;
12) Check that all thermostats are set at 60°C;
13) DIRECT UNITS. Switch on immersion heater(s) and allow unit to heat
up. Check operation of Thermostat(s);
14) INDIRECT UNITS. Fill the indirect (primary) circuit following the boiler
instructions. Switch on the boiler, ensure that the programmer is in the
domestic hot water position. Allow unit to heat up and check operation of
indirect thermostat on motorised valve(s);
15) Check the temperature of the hot water at the nearest outlet and record
in the Benchmark Log Book;
16) Demonstrate operation to user, including operation of temperature &
pressure relief valve and what to do if it operates;
17) Give this manual along with the completed Benchmark Log Book to the
user to retain for future reference and make the customer aware that
periodic checks of the equipment are essential for safety.
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