INSTALLER
34
b
The following instructions are mandatory:
1 - Use a multi-pole magnetic thermal trip switch
and disconnector conforming to IEC-EN stan-
dards (with a contact gap of at least 3 mm).
2 - Respect the L1 (Phase) - N (Neutral) and PE
(ground) connections. Keep the ground wire
about 2 cm longer than the power wires.
3 - Use cables with a cross section of 1.5 mm2 or
more, complete with end terminals.
4 - Always refer to the electrical wiring diagrams
in this manual when performing any electrical
work.
5 - Make sure the appliance is connected to an effi-
cient ground.
a
It is strictly forbidden to use fuel and/or water pipes to
ground the appliance.
a
Do not route the power cable or room thermostat cables
near hot surfaces (like heating circuit flow pipes). Use a
suitable class of cable if there is any possibility of contact
with parts at temperatures above 50°C..
The manufacturer declines all responsibility
for damage caused by failing to ground the
appliance adequately or by failure to respect
the wiring diagrams provided in this manual.
TAU UNIT
condensing boilers are fully wired in the factory. Only the following electrical connections remain to be made:
- mains electricity supply;
- room thermostat;
- outdoor temperature sensor;
- storage cylinder pump (if relevant).
Proceed as follows to access the control panel terminal strip:
- Pull the front panel towards you then lift it up to remove it.
- Unscrew the screws (1) then swing out and lower the control panel (2).
b
Grip the control panel at points (P) as shown in the figure to avoid jamming your fingers as the panel swings down.
- Connect up the connector (3) and plug it into its socket (4) in the rear of the control panel.
Once you have made all the necessary connections, close the control panel, reversing the steps followed to open it.
See page 37 for information on how to connect the temperature sensors and pumps.
ELECTRICAL CONNECTIONS
2
P
P
2
1
TA
L1
L2
PE
NL
3
PE N L3
230V ~ 50Hz
3
4
Step 1
Step 2
REAR VIEW
OF CONTROL PANEL
TOP
BOTTOM
Содержание TAU 150 UNIT
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