Unigas KPBY70, Manual Of Installation - Use - Maintenance

Page: 31 / 193

PART III: OPERATION
31
9.2 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.
Fig. 27 - Danfoss MCX
Fig. 28 - 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