34
5 Commissioning Part I
Instructions for installation and servicing ecoMAX
34
5 Commissioning Part I
5.1 Preliminary electrical checks
Check the electrical installation by carrying out short
circuit, earth continuity and resistance to earth tests and
a check for correct polarity.
5.2 Gas supply
The complete gas installation including the gas meter
must be inspected, tested for soundness and purged in
accordance with BS 6891. In IE the current edition of
IS 813. The gas supply to the boiler can be purged by
slackening the gas service valve beneath the boiler.
Ensure that there is adequate ventilation, extinguish all
naked flames and do not smoke whilst purging. After
purging, the gas service valve connection must be
retightened and tested for soundness. (The boiler itself
does not require purging as this will be done by the
automatic burner sequence control).
5.3 Cold water supply (ecoMAX 800)
Open all domestic hot water taps supplied by the boiler,
turn on the mains water supply to the boiler and open
the mains water isolating valve below the boiler. Water
will now flow through the boiler to the hot taps. Starting
with the lowest tap supplied, turn the hot taps off one at
a time until the hot water pipework is purged of air.
Check all hot and cold water pipework for leaks. Insert
drawing showing 2 filling valve positions
5.4 Filling the heating system (ecoMAX 800)
Proceed as follows to fill the system:
• Open all radiator valves on the system.
• Ensure that the boiler CH service valves are open.
• Check the flexible filling loop is connected.
• Locate the filling valve handle (1) and open.
• Locate the filling valve handle (2) and open to allow
water to enter the system. Starting with the lowest
radiator, open the radiator air release until water (clear
of bubbles) is emitted.
• Repeat this at all radiators until the complete system
is full, all air locks have been cleared and the boiler
pressure gauge reads 1.5 bar. Release any air from the
pump by slackening the centre screw. Turn off the fil-
ling valve (2) and fully close filling valve (1).
• The boiler is equipped with an automatic air release
valve. To allow this to vent the boiler, the cap on the
top must be slackened by 1 –2 turns (This cap must be
left slackened during boiler operation to ensure any
residual air or system gases are released).
• Check the heating system and boiler connections are
sound.
5.5 Initial system flush (”Cold”)
The whole of the heating system must be flushed out at
least twice: once cold, and once hot as instructed later
on page 68. Open all radiator or heating valves and the
boiler CH service valves and drain the heating system
and boiler completely from the lowest points of the
system via 1/2” BSP drain taps (opened full bore to remo-
ve any installation debris prior to lighting the boiler).
Refill the heating system. Check the operation of the
pressure relief valve by rotating the knob on the valve.
Now check the water pressure in the unit again (and add
more water if necessary). Close both filling valves and
disconnect the temporary connection.
5.6 Filling the heating system (ecoMAX 600)
The boiler and the heating system should be filled using
a filling method as described on page 15.
• Ensure that the boiler CH service valves are open.
• Partially open the filling valve and allow water to enter
the system. Starting with the lowest radiator, open the
radiator air release until water (clear of bubbles) is
emitted.
• Repeat this at all radiators until the complete system
is full, all air locks have been cleared and the boiler
pressure gauge reads 1.5 bar. Release any air from the
pump by slackening the centre screw.
• The boiler is equipped with an automatic air release
valve. To allow this to vent the boiler, the cap on the
top must be slackened by 1 – 2 turns. (This cap must
be left slackened during boiler operation to ensure any
residual air or system gases are released).
• Check the heating system and boiler connections are
sound.
5.7 Initial system flush (”Cold”)
The whole of the heating system must be flushed out at
least twice: once cold, and once hot as instructed later
on page 40.
• Open all radiator or heating valves and the boiler CH
service valves and drain the heating system and boiler
completely from the lowest points of the system via
1/2” BSP drain taps (opened full bore to remove any
installation debris prior to lighting the boiler).
• Refill the heating system.
• Check the operation of the pressure relief valve by
rotating the knob on the valve.
5.8 Filling condensate trap
Remove the lower part of the condensate trap
(1, fig. 5.1) by unscrewing and fill with water to about
10 mm from the top.
Refit to boiler.
Fig. 5.1 Filling the heating system (ecoMAX 800)
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83 41 77_12 GB04.04.qxd 22.09.2004 12:34 Uhr Seite 34
Содержание ecoMAX SERIES
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