10
Concord CXC -
Installation
CONDENSATE DRAIN
The Concord CXC boiler will produce condensate whenever the
temperature of the return water from the system is below
approximately 55
o
C (the Dew Point of the combustion products).
Natural gas condensate is mildly acidic with a pH value of about
4 and therefore corrosion resistant materials must be used in the
construction of the condensate drain. Standard PVC pipe is
suitable for this purpose and should be connected to the steel
drain fitted on the boiler.
GAS SUPPLY
If there is any doubt regarding the capacity of the gas meter, the
available gas pressure, the adequacy of existing service pipes
or the size required for new service pipes then the advice of the
gas supplier should be requested. Installation pipework should
INST
ALLA
TION
INSTALLATION
be fitted and tested for gas soundness in accordance with BS.
6891 for small installations or IGE-UP-1 and IGE-UP-2 for large
installations.
The local gas supplier must be consulted if it is necessary to employ
a gas pressure booster.
ELECTRICAL SUPPLY
WARNING. This appliance must be efficiently earthed.
A 230 V ~ 50 Hz mains supply is required, fused at 5 amps.
Wiring external to the appliance MUST be in accordance with the
I.E.E. (BS. 7671) Wiring Regulations and any local regulations
which apply.
For details of connections see Frame 14.
5
CONCORD CXC BOILER ASSEMBLY - Exploded view
6. Float switch
7. Shunt pump.
8. End section.
Legend
1. Collector hood
2. Cleanout cover
3. Fan
4. Secondary heat exchanger
5. Air pressure switch.
9. Middle section.
10. Tie rods.
11. Base plate.
12. Combustion chamber.
13. Section bolt.
14. Front plate.
15. NOx duct.
16. Drain cock.
17. Burner manifold assy.
18. Gas cock.
19. Flueway baffles.
20. Thermostat pocket.
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