Dux ReadyHot series Installatiehandleiding - Pagina 7

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TESTING AND COMMISSIONING

1. Ensure the power supply to the Readyhot unit is switched 'off'.
2. Carry out steps 1-12 of the 'Testing' in the Commissioning section from the Operation / Installation manual
supplied with the water heater.
3. Inspect and clean the strainer located on the cold water inlet connection of the Readyhot module. This
procedure may need to be repeated to ensure the strainer remains clear, especially on new installations.
4. Turn 'off' the power supply to both the water heater and Readyhot units.
5. Open all available hot water taps, including the shower, again until water from all outlets is cold. Then close
the hot water taps.
Ensure building occupants do not have access to hot water outlets during this procedure.
CAUTION
6. Open the Readyhot module Pump and Cold Water inlet bleed valves items
position of 'bleed valves' is shown on dimensional drawing) until all air pockets are released and a steady
stream of water is discharged.
7. Activate the power supply to both the water heater and Readyhot units.
8. If water controllers are fitted: Press the 'on/off' button on the water control panel. The 'on' indicator next to
the transfer button will glow when the control panel has been switched 'on'. Then press the 'preheat' button on
the control panel. The 'preheat' indicator next to the preheat button will glow indicating that the preheat system
has been activated. Then adjust the temperature to the hottest setting by pressing the 'hotter' button until the
temperature displayed on the control panel cannot be increased any further.
If a manual activation switch is fitted: Press the switch once.
With the Readyhot unit now activated via the water controller or manual activation switch, the pump should
start running immediately afterwards which is indicated by the left LED on the Readyhot PCB glowing
green continuously. Check that this is the case. If the left LED on the Readyhot PCB does not glow green
the pump has not started. In this case there is probably an incorrect or missing wiring connection between
water controllers or manual activation switch and the water heater or Readyhot unit. Check all wiring and
connections between these items.
If the pump activates as required, shortly afterwards the water heater should turn on also. Wait two
minutes. This will allow the water in the pipework to be warmed. If the water heater does not turn on re
check electrical connections and installation.
9. Open the heated water outlet furthest away from the water heater. The water should become warm in a matter
of seconds.
The waiting time for heated water delivery will vary depending on the size and layout of the
branch line.
NOTE
10. Inspect and clean the strainer located on the heating return loop inlet connection of the Readyhot module.
This procedure may need to be repeated to ensure the strainer remains clear, especially on new installations.
11. Confirm the temperature delivered at the outlet with a suitable thermometer or digital temperature indicator. It
should not exceed the temperature displayed on the water controller or the pre-set limit programmed into the
printed circuit boards of either the Readyhot module or water heater.
12. After testing is completed, explain to the householder the functions and operation of the water heater, Water
controller(s) and the Readyhot module. Explain to the householder that some temperature fluctuations may be
experienced some of the time as a result of installing Readyhot.
13. Ensure the customer record section of the 'Operation / Installation manual' is filled in and that the booklet is
handed to the customer.
14. The preheat function is cancelled 5 minutes after activation and the 'preheat' indicator will go out. This is to
conserve energy. To reactivate, simply repeat steps 7-10 above
7
&
of Fig. 3 (actual
12
13
Dux Readyhot 11.007 V2 - 28/9/11