8.0 Installation
24
© Baxi Heating UK Limited 2005
8.4
Fitting The Boiler
(Fig. 18)
1. Remove the tape from the tap rail on the support
bracket.
2. Lift the boiler over the support bracket using the lifting
points shown in Fig. 18 and engage onto the top hooks
(see Lifting paragraph page 4).
NOTE: When installing in Loft/Small Compartment
access for lifting the boiler from the front can be
gained for two people using the lifting points (Fig. 18).
3. To gain access to the connections between boiler and
valves, release the facia securing screws (
1
/
4
turn) and
hinge down the facia box.
4.
Make the connections in the following sequence:
a) Gas connection first to centralise the boiler.
The gas
sealing washer is an integral part of the gas tap.
The Combi HE is designed to operate under nominal
water supply conditions. If the hot water delivery is
greater than 18 l/min (133 model), 14 l/min (100
model), 12 l/min (80 model) the flow regulator must be
fitted to the Domestic Hot Water inlet.
b) Domestic hot water cold feed, if necessary fit the
water flow regulator ensuring that it is fitted the correct
way round (Fig. 20).
NOTE: Ensure water inlet filter is
fitted.
c) The remaining connections ensuring the fibre sealing
washers are inserted between the valve outlet face and
the flange on the copper pipes of the water circuit and
pressure relief connections (Fig. 20).
5. Tighten the connections in the sequence listed above.
8.5
Condensate Drain
(see section 7.6)
1. Connect the condensate drain using the 1” BSP nut
and seal supplied.
Ensure the discharge of condensate complies with any
national or local regulations in force (see British Gas
“Guidance Notes for the Installation of Domestic Gas
Condensing Boilers”.
2. The condensate outlet terminates in a 1” BSP nut and
seal for the connection of 21.5mm (
3
/
4
in) plastic overflow
pipe which should generally discharge internally into the
household drainage system. If this is not possible,
discharge into an outside drain is acceptable.
NOTE: To ensure the correct operation and
integrity of the condensate drainage system -
Carefully pour approximately 1 cupful (250ml) of
water into the flue products exhaust, at the top of the
heat exchanger (Fig. 19) to ensure a seal is made in
the trap.
Top Hooks
Support Bracket
Facia Box
Facia Securing
Screws
Gas Connection
Tap Rail
Fig. 18
Fig. 20
FLUE PRODUCTS EXHAUST
Tap Rail
Central Heating
Return Filter
Fig. 19
Fibre Sealing
Washer
Flow Regulator
Water Inlet Filter
Hot Water
Outlet
Cold Water
Inlet
Central Heating
Flow
Central Heating
Return
Pressure Relief
Suggested Lifting Points
shown as shaded area.
DO NOT LIFT USING
THE PLASTIC FACIA
BOX.
