Thermo Dynamic water heater & central heating booster
www.elitetdch.com
ELITE TDCH Aug 2014v1 Page
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7. Connect a 22 mm return fig 7 on page 22 by teeing it into the RETURN side of the CH
system as near as possible to the boiler and the other end onto the isolation valve on
the inlet on the TDCH
8. Make an electrical connection under BS 7671 between the pump and and a 240V 60
Hz electrical connection on a timer
9.2 Commisioning the system
9. Set the timer to on
10. Close the system drain cock
11. Fill the system with water
12. Bleed off any air from the highest radiator.
13. The TDCH system usually takes 8 hours to reach 50 plus deg
14. After the system is at operating temperature
15. Switch on the TDCH circulting pump.
16. The TDCH pump starts pumping hot water into the central heating system.
a. If any problems or leaks are detected .
Switch off the circulating pump close the isolation valves refered to in step 4
above, then rectifying the problem then open the isolaton valves and turn the
circulting pump back on
17. The boiler starts up but uses less fuel to reach operating temperature.
18. When the boiler reaches operating temperature close the TDCH pump manually or by
insertation of a thermastaically controlled switch ( optional)
19. Set the timer to come on
a. 1 hour before the boiler start up time .
b. ½ hour after the boiler start up time.
The hot water setting is 55 Deg C
The temeprature can be raised to 70 Deg C for the elimination of legionella by switching
on the immersor button for 1hour see page13
Recomendation :If the water coming from the hot water outlet is above 55 deg C then
either adjust the TDCH temperature control or the central heating boiler temperature.
If required a zone valve can be installed in the TDCH central heating return line so that it
is timed to close the return feed line after the central heating boiler starts up, it is then
timed to open when the TDCH starts circulating prior to the central heating boiler starting
up, this will ensure that there is no secondary source of energy to raise the water
temperature.
Current building/ hot water regulations should be adhered to at all times
