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3.6 Electrical installation
Fixed electric fittings should be used for installation.
Any fixed electric fittings must be installed by an
authorised electrician. The relevant standards and
regulations must be followed.
Wiring: Connect the corresponding wires from the
hydrobox into the electronic box inside the tank
unit according to pt. 3.6.4. OLP for Booster Heater
at the HP must be jumpered.
3.6.1 Backup immersion heater thermostat
The immersion heater is designed as an auxil-
iary backup heat source. Power to the immersion
heater must not be switched on until the unit is
filled with water. The unit is fitted with one 2.8 kW
immersion heater which is located in the electrical
box, see pt. 5.1.
Alternative thermostats must not be used. Follow
the wiring instructions (right) connecting the live (L),
neutral (N) and earth cables as indicated.
The heater must be connected to a minimum 16
amp dedicated permanent supply complying with
current local wiring regulations, isolation is required
via a minimum 20 amp double pole isolation switch
with a minimum 3 mm separation required.
All electrical wiring should be carried out by a com-
petent electrician, using a heat resistant cable (mini-
mum 85°C), and be in accordance with the latest
local Wiring Regulations. The TSR thermostat func-
tions solely as a safety cut-out and will operate at
85°C (±5°C). Should this happen, check reasons for
thermal cut-out button being released and when
satisfied press the reset button (R).
3.6.2 Replacing the safety cut.out thermostat
Disconnect power supply. Disconnect power cables
3.6.3 Fitting instructions
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The product must be filled with water before the power is switched on.
Any fixed electric fittings must be installed by an authorised electrician. The relevant stand-
!
ards and regulations must be followed.
!
The mains cable should withstand 90°C. A strain reliever must be fitted.
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The product must have a service clearance of 120 cm in front of the cover / 50 cm on top.
In case of damage to the mains cable, it should be replaced with a suitable mains cable
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from the manufacturer.
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(L) and (N) from the thermostat by loosening screw
A and B. Pull thermostat straight out of the element.
Fit the replacement thermostat by inserting the
temperature sensor (D) into the tube (E). Push ther-
mostat connectors firmly into the connector recep-
tors (C) and make sure the connectors are inserted
fully into the receptors. Refit power cables (L) and
(N), tighten screws A and B to
Thermostat
L
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Constant voltage present in electronic box. Be-
fore any electrical work is done, the power sup-
ply must be disconnected and secured against
activation while the work is in progress.
The thermostat must never be dismantled/
opened. This will compromize its function and
cause risk of overheating. Warranty will cease.
!
WARNING
!
CAUTION
2 Nm (+/- 0.1)
Element
R
D
N
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From terminal block
!
WARNING
.
E
C
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