ZENIT
80
+
TYPE TUBE RADIANT HEATER
Instructions for Installation and Servicing
37
WARNING! Before every maintenance the appliance must be detached from the elektrical supply and
the gas supply must be turned off!
Disregard of these instructions can result in death, injury or property damage!
Carry out starting test and check the regular operation of appliance.
Checking of the regular operation.
Two kind of supervision should be fulfilled:
a) Switch on the appliance, let it operate some minutes, then turne off the gas valve.The burner stops the operation. Wait for 6-8
seconds,then turn on the gas valve once more, the appliance starts the operation again..
b) Let it operate some minutes.Then take down the exhaust end of heat radiant tubes and close the vent opening. The differential
pressure switch switches over to OFF position from ON.The automation closes the solenoid valve and the appliance stops and
red control lamp is lighting.
Remove the closing of tube and reset the original condition.Start the appliance again by interraption then reconnecting of
mains voltage.
Check at the beginning of season
9.
Maintance
The ZENIT
-type tube radiant heater appliance apart from the supervision and cleaning of radiant tubes (see: Maintenance supervi-
sion by the customer), do not need extra maintenances but to be able to preserve the SAFETY OPERATION and LONG LIFETIME of
appliance it is recommended to have yearly supervision done by qualified service department.
Maintenances
Maintenance supervision must include the following:
Maintenance supervisions by the customer
a) Supervision and cleaning of heat radiant tubes.
Clean the external surface of tubes from any dust by a brush and make sure that there is not any burnout or warping.
b) Check connection and sealing of burner tube and heat radiant tubes by a survey. In case there is lack of sealing, colouring shows it.
c) Check the condition of reflectors if necessary clean them. Clean them by a soft cloth or diluted detergent.
d) Check the suspensions, make sure that the load is distributed smoothly at all mountings.You can check it moving each hanger a little.
e) Cleaning the flue pipes.
Remove the barrier by the combustion product and reset the original condition
Restart the device by interrupting and resetting the power supply.
It is advisable to make a maintenance contract for the proper maintenance or call our qualified service department for regular mainte
-
nance.
In case during 5 seconds sparking (ignition) the continuous flame shape is stabilized, - and stable electrical signal is come back from the
electrode – the appliance operates and the green control lamp is lighting. During operation of appliance its automatic burner control con-
trols the condition of differential pressure switch and signals coming from the flame control continuously, and if the position of differential
pressure switch is changed – it is switched over from work position to rest – or the signal from the ionization flame control is interrupted
then it stops the gas supply of burner. The fan continues to rotate, none of control lamps is lighting.
In case during the burning process the pressure decrease under the permissible minimal value ont he positive side of air pressure (from
the fan side), then automation prohibits:
- gas supply and fan stops
The fan continues to rotate, none of control lamps is lighting.
In case during burning process the pressure increases above the permissible maximum value on the negative side of air pressure switch
(from the burner tube side, eg.at combustion back),then it switches back to rest position and the automation prihibits.
- gas supply and fan stops
The appliance stands into error position and red control lamp is lighting.
Restart is possible after the switching off and on of mains voltage
.
