CIB UNIGAS
- M039259CA
24
Oil thermostat adjustment
To find the thermostats, remove the cover of the burner switchboard. Adjust them using a screwdriver on the VR screw as shown in the
next picture.
NOTE:
thermostat
TCI
is provided on burners fired with fuel oil having a 50° E at 50° C viscosity only.
Thermostat adjustment for petroleum burners
To find the thermostats, remove the burner switchboard cover. Adjust them using a screwdriver on the VR screw as shown in the next
picture.
TCI -Installation enabling thermostat
Set this thermostat to about 40° C.
TCN - Oil enabling thermostat
Adjust this thermostat to a value between 45 and 50°C. Anyway, set TCN to a value possibly lower than the one set for TR (see below).
TR - Resistor thermostat
Adjust this thermostat to a value between 45 and 50°C. Check the temperature by using a thermometer mounted on the pre-heating
tank.
TRS - Resistor safety thermostat
The thermostat is set during factory testing at about 190° C.
This thermostat trips when the operating temperature exceeds the set limit. Ascertain the cause of the malfunction and reset the ther-
mostat by means of the PR button (see picture).
CAUTION:
even if the adjusting ranges for the TR (Resistor thermostat) and TCN (Oil enabling thermostat) are the same, set TCN to a
value lower than the one set for TR.
TCN - Oil enabling thermostat (Fig. 10)
Adjust this thermostat to a value 10% lower than that showed
in the viscosity-temperature diagram (Fig. 4).
TRS - Resistor safety thermostat (Fig. 10)
The thermostat is set during factory testing at about 190° C.
This thermostat trips when the operating temperature exceeds
the set limit. Ascertain the cause of the malfunction and reset
the thermostat by means of the PR button.
TR - Resistor thermostat (Fig. 10)
Adjust this thermostat to the correct value according to the
viscosity-temperature diagram (Fig. 4) and check the tempe-
rature by using a thermometer with a scale of up to 200° C
mounted on the pre-heating tank.
TCI - Installation enabling thermostat (Fig. 10)
This thermostat is fitted on burners fired with oil at a viscosity
of 50° E at 50° C only. Set the thermostat to a temperature
about 40° C lower than the TR.
Fig. 10
VR
VR
VR
PR
Summary of Contents for TN90
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Page 21: ...CIB UNIGAS M039259CA 21 Fig 9 Hydraulic diagram 3ID0014 Two or more burners configuration...
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Page 65: ...RWF50 2x RWF50 3x User manual M12922CB Rel 1 0 07 2012...
Page 80: ...16 Note Specifications and data subject to change Errors and omissions excepted...
Page 81: ...KM3 Modulator USER MANUAL M12927CA Rel 1 0 10 2020...
Page 82: ...M12927CA MOUNTING 2...
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