17
clean heat technology
5-3
Select External Wall Mounted
5-3.1 Service Access
External Wall Mounted Boilers have a large hinged front door that gives access to the
Control Panel and enables all routine servicing to be carried out without the necessity of
removing main case or flue. The door can be lifted off in windy conditions.
A large bolted service door is provided on the front of the heat exchanger giving easy
access to the baffles and combustion chamber.
5-3.2 Heating Connections
The flow and return connections are on the top of the Boiler heat exchanger - Ø22mm
copper. The standard arrangement is to connect through the back panel as shown in fig.
5-3b.
5-3.3 Boiler at Ground Level
The External Wall Mounted range can be wall mounted at ground level, however the
following conditions must be considered.
1. A 50mm free air space must be provided under the Boiler.
2. The Burner is supplied for two pipe operation and will probably require changing to
single pipe operation - see 11-3.3.
3. Protection against rodent intrusion is essential.
5-3.4 Fixing the Boiler - Suggested Procedure
1. Remove carton.
2. Before removing main case, study the burner position and the Boiler wall position
and decide on the best oil pipe configuration, see Section 5-2.6 and Section 6.
3. Open Boiler door and remove flue components.
4. Remove Control Panel by unplugging burner plug and unbolt two nuts.
5. Remove main casing - 3 screws each side.
6. Remove access door and lift out all baffles from heat exchanger.
7. Remove burner.
8. Remove Boiler body from wood transport blocks - 4 screws.
9. Offer back panel to the position required on the wall and use this as a template to
mark the drilling positions for the 2 mounting rawl bolts ‘R’ - see Fig 5-3c.
Holes R1 are used to secure the boiler to the transport pallet, these can also be used
for additional fixings to secure the back panel to the wall, but should never be used as
load bearing fixings.
Also mark the positions of any holes required through the wall for water pipes, oil
pipes, fire check valve and electric cable.
Fig. 5-3a Service Access
Fig. 5-3b Heating Connections
22mm
25 min
150 max
PLAN
R
FLOW RETURN
F
Fig. 5-3c Drilling Positions
WARNING
The weight of the Boiler Heat Exchanger bare is 50kg (110
lbs) - it is a two person job to lift it in place.
50
50
50
50
50 kg
kg
kg
kg
kg
10. Remove panel and accurately drill required holes and fit rawl bolts to holes ‘R’ and
set rawl bolts securely in the wall using nuts.
11. Place back panel onto the rawl bolts - do not fit nuts.
12. Clear work space and carefully lift the Boiler heat exchanger onto the 2 rawl bolts, fit
nuts. Tighten nuts sufficiently support weight.
continued >>
INST
INST
INST
INST
INSTALLA
ALLA
ALLA
ALLA
ALLATION 5
TION 5
TION 5
TION 5
TION 5
FLOW
22mm
RETURN
22mm
R
R1
R
R1
A
B
A
R - 2 BOILER MOUNTING HOLES Ø16 FOR Ø12 RAWL
BOLTS
R1- 2 PANEL RETAINING HOLES Ø16 FOR RAWL BOLT
OR SCREWS
A - Ø16 FOR CABLE OR OIL PIPE
B - Ø20 FOR CONDENSATE DRAIN.
SERVICE DOOR
55555
