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f) Test the operation of the Temperature & Pressure relief valve by turning the manual
test cap and ensure the water flows freely and safely to waste.
g) Test the operation of the combination valve PRV by turning the manual test cap and
ensure the water flows freely and safely to waste.
h) Set hot water Mixing valve to ‘max’.
5.7
Heating system pre-fill check:
a) Check filling loop is fitted correctly
b) Check all radiator valves are fitted and tight.
c) Check all radiator air vents are closed.
d) Check all drain valves are closed.
5.8
Flushing and filling heating system:
a) Carry out fill only after hot water system has been flushed and cleaned.
b) Close all radiator valves.
c) Connect filling loop and fill heating pipes using last radiator in line to bleed air.
d) Check for leaks
e) Using hose or suitable container, drain heating pipes.
f) Repeat flushing pipes as required and fill.
g) Open radiator valves and bleed air to fill all radiators.
h) Drain heating system again.
i) On final refill, add proprietary additives as manufactures instructions. Fill to 1 bar.
j) Set pressure gauge red arrow to the black arrow (cold fill pressure – 1 bar).
Electrical
5.9
Electrical check:
a) Check that all wiring including earth wiring has been installed correctly
b) Check tri-core heater cover, Electrastream controller cover and all other electrical
covers are correctly fitted.
c) Check tundish is positioned so that any spillage or spray from the tundish would not
contact any electrical components and is visible.
d) Check
ALL
wiring connections have been made
e) Check the required earth continuity conductors have been fitted.
5.10
Setting and testing controls:
a) Switch on Electrastream mains isolator.
b) On the Electrastream control unit, set date and time (see Fig. 12)
c) Set times to suit economy tariff.
d) Set target temperature to 65°C
e) If heating/hot water is not On press Boost and set room thermostat for heat.
f) Wait for the cylinder and heating to heat up.
g) Check for leaks and bleed the system again when it is up to temperature.
h) Check pressure gauge black arrow, this will show the heating system working
pressure. This should be less than 2.8 bar.
i) Check operation of the Electrastream control unit – Fig. 11.
j) When timer is set for heat and the room thermostat is set above the ambient – the
motorised valve should be open and the pump should be running. When the room
thermostat is reset below ambient the pump should stop and the valve should close.
When the timer is not set for heat, the pump should no run and the valve should be
closed regardless of room thermostat setting.
k) Fill in details in the log book.
