ZMM Haskovo PELLETHERM V.4 LT SERIES, Manual

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Pelletherm V.4 LT 41
7. FAILURES AND TROUBLESHOOTING.
In cases of system operation failures its problems and the relevant troubleshooting have to
be well known. In the automated pellet burner from series “GP xx sc” manual are presented
several tables that include information about possible failures and the methods for removing
them. The next table completes such information with data that could be useful to the end
user / servicing technician.
Table 7.1. Description of the failures in the system operation, consisting of a hot water pellet
boiler from series “Pelletherm V.4 LT” and an automated pellet burner from series “GP xx
sc”, as well as troubleshooting information.
No. FAILURE CAUSE TROUBLESHOOITNG
1. Low temperature in
the heated premises
Insufficient heating
output It is necessary to adjust the burner’s
heating output level.
The boiler’s circulations
water assigned
temperature is low It is necessary to increase the circulations
water temperature assignment.
Low temperature
assignment by the room
thermostat (if connected) It is necessary to increase the room
thermostat temperature assignment.
2. High temperature in
the heated premises
The boiler’s circulations
water assigned
temperature (boiler
thermostat) is high It is necessary to decrease the circulations
water
temperature assignment (the
minimum recommended value is 60
o
C).
High level of the burner’s
heating output It is necessary to adjust the burner’s
heating output level.
High temperature
assignment by the room
thermostat (if connected) It is necessary to decrease the room
thermostat temperature assignment
3. The boiler is
switched ON but
there is no burning
process
No assignment for
operation Check the assignment for operation by the
room thermostat and by the switch
“START” – see the burner components
description.
4. Difficult pellets
ignition
The pellets are with low
quality It is required to change the fuel, as its
water content is probably higher by the
values needed for normal operation of the
appliance.
5. The fuel ignition is
accompanied by
loud noise
Insufficient chimney
draught Consider measures to increase the
chimney draught*. Clean the chimney,
check for gaps, check sealing or ask for
servicing assistance.
6. Overheating of the
boiler
No heating load or
incorrectly adjusted
heating output level of
the burner, or of the
heating installation
operation Check the heating installation for correct
operation and eventually adjust the
operation parameters – to be performed by
servicing specialist. After the appliance
cools down and the failure has been
removed
deactivate the emergency
thermostat (unscrew the protection cover
cap, press the button and screw the cap
back), after that restart the system.
7. No fuel ignition No pellets in the fuel
hopper The hopper must be refueled.
No pellets in the burner
zone The process of primary fuel ignition can be
restored by restarting the pellet burner. In
such case it is necessary to re-adjust the
ignition doze feeding time – to be