F
o
r t
he
u
s
er
17
VÄRMEBARONEN EP 31 300
Operation and maintenance
Venting - water pressure
Regularly check that the water pressure is correct. Air may
be left in the system for a while after installation, for which
reason it should be vented a few more times.
The pressure in a heating system varies with the
temperature. Do not add water unnecessarily.
Controlling power from the heat pump
If the function is used, ”Ext STAGE LIMIT” in the installa-
tion menu must be set for 0-10V!
Electric boilers with power from 31 to 119 kW are supplied
with a function, that permits a heat pump with three bit binary
230V~ output to control the boiler’s power connection. Three
bit binary gives seven power combinations , which means that a
fifteen stage boiler will increase by two stages at each change.
The temperature setpoint of the boiler is set to
the highest permitted temperature in the system!
The electric boiler can be disconnected from the heat pump
control, using a switch see ”Control circuit” point 14, in position:
EP: the boiler is controlled by its own temperature control.
VP: the electric boiler is controlled by the heat pump.
Check on temperature guards
Stop the flow through the boiler.
Adjust the break temperature to 80°C, on the back of the
temperature guard.
°C
80
90
100
110
Standard boiler:
Set boiler temperature set point to 90°C.
When the boiler temperature reaches the break temperature,
the temperature guards should be triggered together with the
load break switch.
Boiler with UTK:
Press the STOP button so that the load break switch trips.
Reset the load break switch so that this window is displayed:
VÄRMEBARONEN AB
EPxxx xxxV xxxx
Vx.xx
(ENGLISH)
>>>>>>>>>><<<<<<<<<<
Press
when the arrows on the bottom row point towards
the middle, so that this window is displayed:
ĮENGLISH
************* (xxxx)
CONTRAST 20
BACKLIGHT 150
FACTORY SETTINGS
SPECIAL MENU ????
STB-test?
----- EXIT! ------
Activate the function by selecting:
STB-test?
This window will then be displayed:
SINGLE Tute +XX°C
CP� VENT�
BOILER TEMP. XX°C
PWR. OUTPUT XXX.XkW
ĮTEMP. SETPOINT 70°C
--------------------
STB-TEST! STB-TEST!
When the boiler temperature reaches the break temperature,
the temperature guards should be triggered together with the
load break switch.
Do not forget to readjust the temperature guards break tem-
perature to 105°C when inspection is finished.
The break temperature must not be set lower than the
boiler temperature control’s highest temperature!
Pressure guard(s) - option
High pressure guard:
Set so that the trigger pressure is be-
tween the boiler’s normal operating pressure and the safety
valves’ opening pressure.
Low pressure guard:
Set so that the trigger pressure is
slightly below the system pressure when the system is not
heated.
Adjustment
Xs
Xs
Xs
