Unit installation
6.0 Installation
13
6.1 Initial Preparation
1. Remove the outer carton from the boiler pack.
Discard the packing pieces. Remove the boiler
hood and fitting kit from it's packing on top of the
boiler.
2. The boiler as supplied has the flow and return
water connections at the left hand side of the
appliance. If this is the required orientation, go to
section 6.3. 
6.2 For installations requiring the water
connections at the right hand side proceed
as follows 
(Fig. 9 & 9a):
1. Leave the boiler on its back on the carton base.
2. Remove the thermostat lead from its clip.
Withdraw the thermostat sensor and its retaining
strip from the pocket. 
3. Unfasten the four screws retaining the boiler
door and remove. Remove the rubber seal and
thermostat protection cover.
4. Lift out the 3 heat exchanger baffles, noting
their orientation (they are marked ‘TOP’ and
‘FRONT’).
5. Lift the heat exchanger from the appliance and
remove the side blanking plate. 
6. Transfer the 3 sealing rings from the holes in
the left hand side of the boiler to those on the
right.
7. Rotate the heat exchanger to place the water
connections at the right hand side, return the heat
exchanger to the combustion box.
DO NOT TURN THE HEAT EXCHANGER
UPSIDE DOWN
NOTE: The heat exchanger is correctly
oriented when the three water connections line
up with the holes in the right hand side of the
combustion box and the thermostat pocket
aligns with the corresponding hole in the door.
The unfinned heat exchanger water tubes face
the burner. 
8. Remove the blanking disc from the left hand
hole in the boiler door and replace with the rubber
seal and thermostat protection cover. Fit the
blanking disc into the right hand hole.
9. Replace the heat exchanger baffles and
blanking plate. Refit boiler door. Refit the
thermostat sensor and its retaining strip into the
pocket.
Side Blanking
Plate
Thermostat
Sensor
Retaining Strip
Thermostat
Protection Cover
Rubber Seal
Heat Exchanger
Baffles
Heat
Exchanger
Sealing
Rings
Blanking Disc
Boiler Door
Fig. 9a
Fig. 9
Carton Base
‘P’ Clip










