Electrical & Wiring - Waterco DigiHeat 2.4kW Installation And Operation Manual

ELECTRICAL & WIRING
This equipment must be installed and serviced by a qualified technician.
!
Improper installation may result in property damage, serious injury or death.
Improper installation and/or operation will void the warranty.
1. The electrical wiring must be permanently hardwired by qualified electrician in accordance with
all the local wiring rules.
2. The appliance shall be supplied through a residual current device (RCD) having a rated residual
operating current not exceeding 30mA.
3. The DigiHeat must be installed within an area not accessible by any water or persons from within
the spa or pool.
4. The External Earth Bonding point is available for connection to alleviate cathodolitic corrosion of
the element.
5. A properly rated isolating switch must be connected from the supply to the DigiHeat with a
minimum rated power circuit as specified on the table below.
6. Parts incorporating electrical components except remote control device must be located or fixed
so that they cannot fall into the spa or pool.
7. To access and carry out the electrical connections the front cover with the digital controller needs
to be removed. The front cover of the DigiHeat is hinged from the bottom to make it easier to
remove and replace it.
To remove the front cover :
i) remove the 6 spring loaded quarter turn locking pins first
ii) pull the cover gently from the top
iii) now slide the cover across to the left to disconnect the hinges.
Reverse the procedure above to ensure the cover is replaced correctly when all work is completed.
DigiHeat Model Volts
2.4 kW 240 Volts (single phase)
3.6 kW 240 Volts (single phase)
4.8 kW 240 Volts (single phase)
6.0 kW 240 Volts (single phase)
18.0 kW 415 Volts (single phase)
24.0 kW 415 Volts (single phase)
DigiHeat Single Phase
Current Draw Minimum Circuit size
10 A 15 A
15 A 10 A
20 A 10 A
25 A 10 A
25 A/phase 30 A/phase
35 A/phase 30 A/phase
DigiHeat 3 Phase
HYDRAULICS & REQUIRED FLOW RATES
This equipment must be installed and serviced by a qualified technician.
!
Improper installation may result in property damage, serious injury or death.
Improper installation and/or operation will void the warranty.
• Water must flow from left to right (when facing the DigiHeat).
There are arrows marked on the housing to assist in
determining the correct direction.
• The DigiHeat should be positioned upstream from any
chemical dosing or chlorinator and a check valve should be
installed to prevent corrosive water from flowing back into the
DigiHeat.
• In the event of DigiHeat being installed more than 1.8m below the pool water level the
adjustable pressure switch will not work. A flow switch must be installed in place of the pressure
switch.
• Required flow rates table
Minimum Flow Rate
DigiHeat Model
(litres per minute)
2.4 kW
3.6 kW
4.8 kW
6.0 kW
18.0 kW
24.0 kW
HYDRAULICS & REQUIRED FLOW RATES
This equipment must be installed and serviced by a qualified technician.
!
Improper installation may result in property damage, serious injury or death.
Improper installation and/or operation will void the warranty.
To adjust the pressure switch:
• Switch OFF the power to the DigiHeat.
• Remove front cover of DigiHeat.
• Ensure the filter is clean & run the pump with the filtration system as normal (FILTER MODE) until
all the air has been bled from the system.
• Turn the pump OFF and check that the pressure switch turns OFF immediately or after a short
delay (1 to 2 secs). If it is not possible to hear the pressure switch operate, connect an Ohmmeter
across the Pressure Switch terminals.
• If the pressure switch remains ON after the pump stops, increase the operating pressure by
turning the small adjusting screw slowly clockwise until the switch turns OFF.
Waterco Digiheat In Line Heaters
Maximum Flow Rate
(litres per minute)
100 350
100 350
100 350
100 350
150 450
150 450
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