Filling The Central Heating System; Toxic Chemical; Heating System And Refrigeration; Installation - Baxi LUNA HT 1.450 Installation And Servicing Instructions

7. FILLING THE CENTRAL HEATING SYSTEM

The system design pressure (cold) should be set to (1.0-1.5) bar. This pressure is equivalent to the maximum static head
in bar + 0.3 (14.5 psi = 1 bar = 10.2 metres of water).
Filling of the system must be carried out in a manner approved by the local Water Undertaking.
Drain taps must be used to allow the system to be completely drained.
The heating system should be thoroughly flushed before the boiler is connected and again after the first heating.
Toxic chemicals, such as those used for boiler treatment, shall not be introduced into the potable water used for space
heating.

9. HEATING SYSTEM AND REFRIGERATION

The boiler, when used in connection with a refrigeration system, must be installed so the chilled medium is piped in parallel
with the boiler with appropriate valves to prevent the chilled medium from entering the boiler.
The boiler piping system of a hot water boiler connected to heating coils located in air handling units where they may be
exposed to refrigerated air circulation must be equipped with flow control valves or other automatic means to prevent
gravity circulation of the boiler water during the cooling cycle.
1 Decide the position of the boiler taking into account the clearances required for servicing and the flue terminal position
DANGER
Remove any combustible materials, gasoline and other flammable liquids away from the hot water pipes.
2 Tape the template to the wall (ensure it is level and upright) and mark the position of the holes for the boiler mounting
bracket and plumbing connections. If rear exit flue is to be used, mark the position of the hole for the flue.
3 If side exit flue is to be used, continue to mark the horizontal centre line of the flue across the wall to the side wall, then
along the side wall (ensure the lines are level). This will give the position of the centre of the hole for the flue.
4 Cut the 4.92" / 125.0 mm diameter hole in the wall for the concentric flue.
1 Lift the boiler and hang it on the wall.
2 Adjust the position of the boiler, if necessary. Fit the screws to secure the boiler in position.
INSTALLATION AND SERVICING INSTRUCTIONS

8. TOXIC CHEMICAL

10. INSTALLATION

10.1 POSITIONING THE BOILER

10.2 FIT THE BOILER

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