29
Harrier GTS -
Installation & Servicing
INSTALLATION
43 CONTROL PANEL (General)
Electrical control panel, equipped with temperature control.
The control panel carton contains:
Control panel complete with burner connection harness.
The control panel incorporates a boiler thermostat controller, a
thermometer and a safety thermostat.
The boiler thermostats -
one controls the maximum boiler
operating temperature. The other controls the high/low operation
if a 2 stage burner is fitted.
The safety thermostat
(with manual reset) - if the boiler
temperature rises abnormally (110
o
C), the safety thermostat cuts
off the burner electricity power supply.
WARNING
. In this case, you must call your installer
Refer to Frame 50 for specific details of panel.
44 ELECTRICAL CONNECTIONS
WARNING
. The electrical connections must be made by a
qualified professional. The electrical wiring has been carefully
checked in the factory and the internal connections of the
control panel must not be modified in any event.
The electrical connections should be made following the
information shown on the electrical diagrams delivered with the
unit and the directions given in the instructions.
The electrical connection must comply with standards in force.
The equipment must be powered by a circuit containing a
remote double-pole switch with opening > 3mm.
WARNING.
The boiler must be earthed.
All connections must be made using the terminal blocks
provided for this purpose at the back of the boiler control panel.
Connections cables are brought inside the boiler through cut-
outs provided in the boiler back panel, which are large enough
for use of commercially available conduit if required.
These cables are secured at the back of the control panel using
cable clamps (cable clamps supplied in a separate pack) that
are to be installed on the sheet metal.
45 BASIC CONNECTIONS
1.
To gain access to the connection strip, unscrew the three
screws on the rear of the control panel and open the panel.
2.
Pass the connecting cables to the control panel through the
two cut-outs in the rear panel of the boiler and route them
to the front via the cable channels. (See Frame 35).
3.
Pass the cables into the control panel through the
rectangular openings in the front top panel.
4.
Secure the cables to the base of the control panel with the
cable clamps.
5.
Connect the main supply to terminals 1, 2 and 3 of the
connecting strip as shown. (See also Frame 46)
3
5
1
4
2
12
11
10
9
8
7
6
5
4
VA
S3 T8
T7
T6
T 2 T
1 L1
N
230V
50Hz
L
N
A
L
I
har7048
INST
ALLA
TION
