ELECTRICAL CONNECTIONS
17
5.
ELECTRICAL CONNECTIONS
5.1.
General instructions
All electrical connection must be performed by an authorized professional, in conformity with
the local regulations and the indications of this manual. Connections must be done according
to norms EN 60529 and EN 60335-1, and protection norms IP 40 and IP 44.
All wiring must be waterproof insulated. Exposed cables should be protected within plastic
channel. The main electrical supply of the boiler must be connected to an independent safety
of max 16A. The boiler room lighting must be on a separate circuit.
The user is obliged to connect the boiler to an efficient grounding system.
THERMOSTAHL ROMANIA SRL declines any liability for damage caused to
people, animals and goods, due to defects caused by faulty electrical
connections or lack of connecting the boiler to an efficient grounding system.
5.2.
Control panel functions
Fig 5.
EN-1 control panel
The general switch ON/OFF interrupts the electrical supply to all the devices.
The burner thermostat interrupts the burner function when the preset boiler temperature has
been reached. It is recommended that this temperature is set between 70-90
o
C. This
temperature should never be set below 55
o
C. The burner thermostat can control both one-
stage or two-stage burners, with a preset temperature difference between the two stages of
7
o
C.
The pump thermostat starts the circulation pump function at the preset temperature. It is
recommended that this temperature is set around 45-55
o
C.
The safety thermostat will interrupt electrical supply to the burner if the boiler temperature
reaches above 95
o
C. If so, it needs to be reset manually by unscrewing the plastic cover.
The burner and pump indication lamps follow the function of the corresponding devices.
The control panel offers the possibility to connect with a room thermostat. When the room
thermostat contact opens, the burner function stops.
Legend:
1.
Thermometer
2.
Burner thermostat
3.
Safety thermostat
4.
Pump thermostat
5.
General ON/OFF switch
6.
Pump function led
7.
Burner function led stage 1
8.
Burner function led stage 2
