Table of Contents
Advertisement
C.I.B. UNIGAS - M039196CC
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.
TCN - Oil enabling thermostat (Fig. 16)
Adjust this thermostat to a value 10% lower than that showed
in the viscosity-temperature diagram ().
TRS - Resistor safety thermostat (Fig. 16)
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.
PR
TR - Resistor thermostat (Fig. 16)
VR
VR
VR
Adjust this thermostat to the correct value according to the
Fig. 16
viscosity-temperature diagram (page 13) and check the tem-
perature by using a thermometer mounted on the pre-heating
tank.
TCI - Installation enabling thermostat (Fig. 16)
This thermostat is fitted on burners fired with oil at a viscosity
of 400cSt at 50° C only. Set the thermostat according to data
on page 13.
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.
22
Advertisement
Table of Contents
