Unigas PBY1025, Manual Of Installation - Use - Maintenance

Page: 26 / 119

C.I.B. UNIGAS - M039126CE
26
Oil thermostat adjustment
Progressive and fully modulanting oil burners are equipped with electronic multi-thermostat Danfoss MCX, whose operation is con-
trolled by thyristor. (for details refer to the attached technical documentation)
The oil viscosity at the nozzle, should be about 1,5 °E, which guarantees correct and safe functioning of the burner. The above tempe-
rature values are suggested and refer to a plant designed according to the prescriptions in the burner user manual.The suggested
values can change in reference to the fuel oil specifications.
Burners equipped with double tank
All thermostats are located inside the control panel. To set the temperature use a small screwdriver.
Such temperature must be set during burner operation, checking temperature in the thermometer mounted on the pre-heating tank. We
suggest a thermometer with scale up to 200° C.
Fig. 23 - Danfoss MCX
Fig. 24 - Probe connections (Danfoss MCX)
Menu path
Oil viscosity at 50 °C according to the letter shown in the
burner model
P N E D H
89 cSt < 50 cSt > 50 cSt
< 110 cSt
> 110 cSt
< 400 cSt > 400 cSt
< 4000 cSt
12 °E < 7°E > 7 °E
< 15 °E
> 15 °E
< 50 °E > 50 °E
< 530 °E
Par
rEG
Pb1 tr Oil heater temperature probe parameter not visible
Pb2 tCI Plant consent temperature probe
(when installed)
20 °C 70 °C 70 °C 70 °C ---
Pb3 Oil oil heater output temperature
probe (PID regulation);
60-70 °C 110-120 °C 120-130 °C 130-140 °C 140-150 °C
SP0 Set-point oil heater with oil pump
stopped (stand-by)
45 °C 120 °C 130 °C 140 °C 150 °C
Pb4 tcn Oil heater consent temperature
probe
40 °C 100 °C 100 °C 110 °C 120 °C
trS Safety temperature tank resistors
(manual reset)
120 °C 190-200 °C 190-200 °C 190-200 °C 190-200 °C
Pb4
Pb3
Pb1