18
clean heat technology
3
1
2
13. Adjust for level and tighten the rawl bolt, note that the top rawl bolt must be in the
centre of the slot in the heat exchanger.
14. Fit additional screws in panel fixing holes R1 if required.
15. Refit Burner. Make oil pipe connections, see Section 5-2.6.
16. Make water connections.
17. Fit main casing.
18. Fit flue as shown in fig. 5-3d. The outlet can be orientated in any direction except
directly to the wall. Water entering the flue is not a problem as this will drain to the
condsensate drain.
19. Refit Control Panel.
20. Refit Baffles and Access Cover - see Section 9.
21. Finally, seal top and both sides externally with sealant provided - ensure GOOD
NEAT SEAL.
CAUTION
Do not trap phial capillary tubes behind access cover.
5-3.5 Connecting Control Panel
The three phials of the thermostats are inserted horizontally in the pockets situated in the
heat exchanger, see fig. 5-3e.
The burner is supplied with a 4 wire cable and plug which connects into the burner supply
socket on the Control Panel.
The mains electricity supply, preferably from a spur switched and fused 5 amp, should
enter the Boiler casing through one of the holes - see Fig. 5-3c.
5-3.6 Frost Protection
All external boilers have a frost thermostat fitted as standard, this must be correctly wired
to provide frost protection - see wiring diagrams Section 11.
A suitable antifreeze must also be used in applications where freezing can occur and
should be considered for all systems.
5-3.7 Rodent Intrusion
Boilers installed in situations where rodent intrusion is possible, all pipe/cable entry holes
of the Boiler must be covered, after installation, to prevent rodents entering the Boiler
casing.
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
Fig. 5-3e Phial Positions
FROST STAT PHIAL
(NO SLEEVE)
POSITION 3
LIMIT AND CONTROL STAT PHIAL
POSITIONS 1 & 2
BURNER CABLE & PLUG
MAINS SUPPLY PLUG
Fig. 5-3d External Boiler Flue Assembly
INST
INST
INST
INST
INSTALLA
ALLA
ALLA
ALLA
ALLATION 5
TION 5
TION 5
TION 5
TION 5
FLUE
SEALING RING
SEAL
SEAL
SEALING RING
FLUE
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