3
Maxi Heat Digital
Change of heating element/gasket
MA45-24E
ENGLISH
NOTE!
This unit has been upgraded with
titanium heating element(s)
Installed by Date
C. Enclosed label
B. Automatic fuse
On
Off
Service window
OUT
Rating plate
IN
Drain plug
A
Required: Screw driver, box spanner, strap 1 pc
Procedure:
1. Turn off the electric heater.
2. Turn off the main switch.
3. Turn off the circulation pump.
4. Close the valve ahead of the electric heater (on the hose IN).
NB!CheckthatthehoseOUThasacheck-valve,thatpreventsthewaterfromowingbackwards.
5. Disconnect the drain plug and empty the heater body of the water.
6. Replace the drain plug when the body is empty.
7. Undo the two screws on the cover (A) and open it.
8. Turn off all the automatic fuses in the electric heater (see picture B).
9. Undo the four screws of the inspection door on the end wall and open it.
10. Pull out the temperature sensor for the overheating limit control.
The temperature sensor is always placed in the pocket of heating element no. 2 (see page 2).
11. Undo the cable harness from the heating element (feeding and ground).
12. Unscrew the heating element (or possible cover plate) from the body.
13. Replace the old gasket with the new red one.
14. The heating elements are connected for 380-415V.
NB! If the operating voltage is 220-240V, 3 pcs connection tin plates shall be removed, see page 2.
Check that the new heating element is correct connected for the actual operating voltage.
15. Install the new heating elements (and the cover plates) in the body. NB! Use the correct screw length for each purpose:
Titanium heating elements need a screw length of 30 mm, Incoloy heating elements and cover plates need a
screw lenght of 16-20 mm.
16. Replace the temperature sensor in the pocket on heating element no. 2. Secure it with a strap.
17. Check that the drain plug is tightened
18. Open the valve on the hose IN (ahead of the electric heater).
19. Switch on the circulation pump.
20.Waituntiltheelectricheaterislledwithwater.
Theelectricheatermustnotbestarteduntilitiscompletelylledwithwater.
21. Check that there are no water leaks at the heating elements.
22. Reassemble the cable harness on the heating elements. See the enclosed wiring diagram for 220-240V or 380-415V.
23. Switch on all the automatic fuses.
24. Close all openings.
25. Turn on the main switch.
26. Start the electric heater. The electric heater remembers the last set
required pool temperature.
If Incoloy elements are replaced by titanium elements the enclosed label (C )
shall be attached beside the rating place on the back of the heater.