28
Värmebaronen EP 350
External blocking
See ‘Ext. STAGE LIMIT’ in the Installation menu!
The boiler can be blocked by an external potential-free contact.
1
2
3
36
External stage control — 0-10 V, 0-5 V or 4-20 mA
See ‘Ext. STAGE LIMIT’ in the Installation menu!
0-100% of installed power. Installed power is the number
of stages the boiler is permitted to use.
36
1
2
3 GND
0 - 10 Vdc
0 - 5 Vdc
4 -20 mA
External setpoint — 0-10 V, 0-5 V or 4-20 mA
See ‘Ext. TEMP. SETPOINT’ in the installation menu!
1
2
3 GND
0 - 10 Vdc
0 - 5 Vdc
4 -20 mA
34
0-10 V output signal of connected power
0-10 V, equivalent to 0-100% of installed power.
Installed power is the number of stages the boiler is permitted
to use.
1
2
3
0 - 10 Vdc
GND
31
0-10 V output signal of boiler temperature
0-10 V is equivalent to 0-170°C.
1
2
3
GND
0 - 10 Vdc
31
Outdoor temperature sensor - boiler with UTK
See Adjustment menu!
The temperature sensor is fitted to an outside wall, at half
the height of the facade, close to a corner, facing north to
north west. The sensor must not be placed where it will be
exposed to the morning sun or close to valves, windows or
doors.
Connection with at least 0.4 mm
2
cable up to 30 metres.
The duct is sealed so as to avoid condensation in the sensor
enclosure.
33
1
2
J3
Alternative heating - boiler with UTK
See ”Ext. TEMP. ADJUST” in the Installation menu and
”TEMP. ADJUST” in the Adjustment menu!
The temperature can be changed with the aid of an external
potential-free contact function, protective extra low voltage.
30
1
2
J2
The control voltage is not broken by the load-
break switches.
The control circuit is disconnected from
the power supply by unscrewing and removing
the threaded fuse, F20.
External control voltage may occur.
To break the power supply to the boiler,
the load-break switch must be placed in
the 0 position.
Lock the switch!
Electrical installation