Specific Electrical Supply
7.5 kW
9 kW
10 kW
12 kW
230V
– Single Phase (UK)
32 Amps
38 Amps
NA
50 Amps
400V
– Three Phase (UK)
11 Amps
13 Amps
NA
17 Amps
Two Phase / Split Phase
L1
L2
21 Amps
11 Amps
25 Amps
13 Amps
NA
34 Amps
17 Amps
220V
– Single Phase (Euro)
35 Amps
NA
46 Amps
55 Amps
380V
– Three Phase (Euro)
12 Amps
NA
16 Amps
19 Amps
Connect Pool Heater to Power Supply
To connect to the power supply, your installer needs only protect the main supply lines with an RCD.
The size and specification of the cable to the heater should be decided by consulting the Local
regulations. To minimize the effects of volt-drop, the plant room should be located as close as possible to
the main electrical supply.
The supply cable enters via the removable plate at the back of the heater. The plate should be drilled out
to suit the size of cable gland used. Under no circumstances should cable be installed through the metal
plate without the use of a gland. To access the terminals, remove the heater cover and the plastic
terminal cover.
Single-phase
. All 12THR heaters are delivered configured for single-phase operation. It is vital that all
wires are firmly terminated into the appropriate terminal (L+, N or E). Ensure that the cable is of sufficient
diameter to ensure a good clamp is made. After termination, check all the cables for tightness and
replace both sets of covers.
Two-phase or Split-phase
. Heaters with ratings 3 or 4kW cannot be configured for these supplies.
The standard 6kW heater can be configured to operate on these supplies by carrying out the following
modification:
a)
Remove brown wire from contactor pole L3 and reconnect to contactor pole L2
b)
Connect first phase wire to contactor pole L3
c)
Connect second phase wire to terminal block L+
The standard 7.5, 9 and 12kW heaters can be configured to operate on these supplies by carrying out the
following modification:
a)
Remove a brown wire from between L+ terminal block and contactor pole L3
b)
Connect first phase wire to terminal block L+
c)
Connect second phase wire to contactor pole L3
d)
Ensure that filter pump and associated items are supplied from second phase which has
a lighter load
