
TRGOVINA TERMOSTROJ d.o.o.
10250 Lu
čko, F. Puškarića 1d
Tel/Fax +385 1 6531-008, 6531-015, 6531-016 Eurposka unija
e-mail: [email protected] web:
http://www.termostroj.com
European Union
6. Survey of possible defects and irregularities in operation
DEFECT
CAUSE
ELIMINATION
- at switching on, no voltage on
the control panel
-
no feed from net on one or
more phases
-
fuse 2,5A on the control
panel blown
-
FID switch ejected
-
check on serial clamps of
the boiler whether there is
feeding
-
replace the fuse 2,5A and
check the cause of its
blowing
- at switching on, switches
show voltage on the control
board, but the boiler does not
heat
-
check the adjustment of a
room thermostat,
-
limit thermostat was
activated,
-
indicator of air appearance
in the boiler blocked the
operation,
-
defective contactor,
-
defective operation
thermostat,
-
blown heaters
-
check the adjusted
temperature on a room
thermostat, replace its
batteries or it is defective,
-
vent the boiler till the lamp
“air in boiler”, turns off
- temperature in boiler is at the
desired value, but the radiators
are not warm
-
circulation pump is not in
operation,
-
air blockage on central
heating installation, that
prevents the circulation
-
start the mechanical pump
or replace it with the new
one if it is blown (see
4.1.
),
-
vent the installation
- the boiler heats poorly
-
on the feed one phase is
missing,
-
in two-phase thermostats,
second phase is not in
operation,
-
second or third phase was
not manually turned on,
-
one contactor defective,
-
a part of the heater has
blown,
-
in three-phase system to
the boiler are not brought
three various phases
-
check fuses on the main
panel,
-
replace thermostat or, if
necessary, contactor,
-
replace the heater,
-
measure with the
instrument voltage between
phases, it should be 380V
- in the operation the contactor
can be heard (it is buzzing) and
possibly radio and TV-
interferences
-
poor voltage in the network,
-
defective contactor
-
select with the instrument
the best phase for control
(on the boiler marked with
“R”)
-
replace the contactor
- at switching on or off the
operation thermostat radio and
TV-disturbances
-
defective operation
thermostat,
-
defective blockade (RC –
protection)
-
replace the thermostat,
-
replace the RC – member
- boiler in operation is roaring
-
a system is not good
vented,
-
vent the system,
-
replace heaters
We reserve the right of changing these instructions without special prior notification
TMS-UT-1203-Z07-2
13