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Värmebaronen EP- 900, -1080, -1200, -1400
Operation and maintenance
Interventions, adjustments, maintenance and the like
in the boiler may only be performed by a person with
authorization.
Never perform maintenance work / service on pres-
sure-bearing parts when they are pressurized or hot.
Always cut the power to the
boiler and lock the power
switches before the boiler
water is drained.
The control voltage is not
broken by the load-break
switches.
External voltage may occur.
Restart after power cut
The boiler does not restart automatically after a power cut. To
start the boiler, follow the instructions in the display.
Disconnection of the function must be evaluated in col-
laboration with the end-user and accepted by the accred-
ited body that assesses the periodic monitoring of the
boiler. See "Electrical installation".
Power connection
The boiler uses binary power increase. Thirty stages are
achieved by connecting and disconnecting the power groups.
Delayed power connection after power cut
Power connection can be time restricted after a power cut,
that was longer than three minutes. When the delay is active,
the green indicator on the control panel flashes. Information
may be displayed in the display. The delay can be temporarily
disabled. See the Installation menu.
Quick increase/reduction
For quick increase/reduction, see the Installation menu.
PEC function
By measuring the leakage current of the immersion heaters,
the function gives an early indication of a possible fault in the
immersion heaters and thus the possibility of action without
unplanned downtime.
In some installations, the measurement may give incorrect
readings, caused by other equipment connected to the instal-
lation's piping and electrical system providing vagabonded leak
currents. If these currents get too high, the boiler switches off
even if there is nothing wrong with the boiler. If this occurs, the
PEC function should be turned off. A point on insulation testing
of the immersion heaters should be added to the maintenance
plan. The break value for the PEC function is adjustable.
Safety valves
To maintain the safety function, the heating system's safety
valves must be operated regularly.
Over temperature protection
To supplement the temperature guards, the control electronics
has over temperature protection. The aim of this is to prevent
the temperature guards from being tripped where possible.
The protection disconnects all power in the event of a tem-
porary temperature increase that may occur as a result of
reduced flow following a pump stoppage, for example.
Maintenance
After 500 hours of operation, the cable connections must be
tightened with a torque wrench.
Check the power cables' connections every 2 years.
Cooling fan
The boiler cooling fan is equipped with an air filter, which is
checked regularly. The interval depends on the environment in
which the boiler is installed, but at least once a year.
Draining
Always cut the power to the boiler and lock the power
switches before the boiler water is drained.
Action in the event of a risk of freezing - frost protection
When it is extremely cold, no part of the heating system must
be switched off as there is a risk of bursting. If the heating sys-
tem must be switched off for long periods the system should
be drained, or the heating system water can be mixed with
maximum 30% glycol. When using a glycol mixture the boiler
power is reduced, or the through flow in the boiler can be in-
creased. If the heating system's water is mixed with glycol, it is
important to check that the glycol contains a suitable quantity
of corrosion-protection additive.
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 boiler must not be exposed to cyclic pressure variations.
The boiler must not be in operation if you suspect that
any part of the heating system is frozen.
Call an installation engineer!
