F
LOW
R
EQUIREMENT
The Flow-Line heater is factory set to accept input water from the left and exiting on the right, this can be
reversed by rotating the flow switch 180° (i.e. ½ turn).
Warning!
The flow switch paddle can be damaged when reversing the flow direction if it is lifted by
more than 5-mm from its housing and turned with force. If the flow switch has been rotated it is important
to ensure that it is finally locked down in the correct orientation perpendicular (at right angles) to the flow
of water.
The flow rate of water entering the heater
must not
exceed 13,000-litres per hour (2,860 Imp Gallons per
hour. A higher flow rate
will
require the installation of a by-pass to prevent damage to the heating elements.
The heater will not operate with a flow rate of less than 1,000-litres per hour (220 Imp Gallons per hour).
E
LECTRICAL
C
ONNECTION
The heater must be installed in accordance with the country / regional requirements & regulations. In any
event the work must be carried out by a qualified electrician who will provide a certificate of conformity
upon completion of the work. The power supply
must
be fitted with a RCD.
The heating element(s) in the Flow-Line heater are pre-wired to the main terminal block and are ready to be
connected via a contactor.
P
OWER
R
EQUIREMENTS
Power Output Single Phase
Voltage
Amp
2-kW
230V
9
3-kW
230V
13
4.5-kW
230V
20
6-kW
230V
27
9-kW
230V
40
12-kW
230V
53
Power Output
3 Phase
Voltage
Amp
6-kW
400V
9
9-kW
400V
13
12-kW
400V
18
15-kW
400V
22
18-kW
400V
26
C
ONTACTOR
C
ONTROL
C
IRCUIT
The pre-wired control circuit is terminated within the electrical enclosure, all control circuit components
have been factory pre-wired and provide a single volt free switch output (see wiring diagram attached).
Control Components Include:
Quantity
Description
1
0˚C to 40˚C Control Thermostat
1
55˚C Pre-Set High Limiting Manual Reset Thermostat
1
Flow Switch Pre-Set 1,000-litres per hour (220 Imp Gallons per hour).
Control Circuit Important Electrical Data:
Limited by the flow switch (reed switch)
Contact Rating - 90.0 W/VA
Switching Current MAX - 1.0 Amp
Switching Voltage MAX - 230V AC
The control circuit includes a transil spike voltage protection
