Mounting The Remeha Avanta; Water-Side Connections; Water Flow; System Pump - REMEHA Avanta 12v Installation & Service Manual

fig. 05 Mounting the Avanta
2x
ø8 mm
59970.LT.GB.W7H.002
2.2.3

Mounting the Remeha Avanta

• Remove template from the box.
• Using the template determine and mark the position of the
mounting bracket and flue outlet.
• Drill the (Ø 8 mm) holes.
• Fit the (Ø 8 mm) plugs.
• Core drill the (Ø 125 mm) hole for the flue outlet
• Fit (Ø 6 mm) screws into the plugs.
• Remove boiler from the box and mount on bracket.

• The boiler should be mounted on a suitable vertical wall
which is able to support the weight of the boiler.
• The boiler should be mounted in a room which, even
during severe cold weather, remains frost-free, or frost
protection controls MUST be fitted.
• If the boiler is to be installed in a timber framed building,
please refer to British Gas publication: 'Guide for Gas
Installations in Timber frame Housing', reference DM2.

• Make sure the boiler and any open connections are
protected from building etc. dust during the installation.
• There must be a 3 amp fused switched spur within 1 m of
the boiler.
• Provision must be made for the condensate discharge.
2.3

Water-side connections

2.3.1

Water flow

The central heating system should not require a bypass,
unless all radiators are fitted with TRV's or when the system
controls could allow the boiler and pump to operate when
there is no flow. Where a bypass has to be fitted, the bypass
must be placed at least 1.5 metres away from the boiler.
The 'abc ' control also monitors the temperature difference
®
across the flow and return connections and the rate of tem-
perature rise and will automatically regulate the boiler output
to ensure that it remains operational for as long as possible
without the need to 'lock out' requiring a manual reset.
2.3.2

System Pump

The system pump must be wired directly to the boiler terminal
strip and be capable of providing the nominal flow at design
conditions against the combined resistance of the boiler and
system.
The minimum flow rate is 1.05 m
15°C differential across flow and return. To operate at dT =
11°C the flow rate must be 1.37 m
Higher resistance systems may require a higher duty pump.
The maximum power consumption of the pump may not
exceed 150 W /1.5 amps.
The connection of the pump is described in par. 2.8
9
/h (0.29 l/s) at full load and
3
/h (0.38 l/s)
3