Unigas PBY1025, Manual Of Installation - Use - Maintenance

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Connections from terminal side :
24V AC
Probe connection:
input
AI1
= probe
Pb1
= set-point “
tr
” = oil heater temperature probe;
input
AI2
= probe
Pb2
= set-point “
tCI
” = plant consent temperature probe (when installed);
input
AI3
= probe
Pb3
= set-point “
OIL
” = oil heater output temperature probe (PID regulation);
input
AI4
= probe
Pb4
= set-point “
tcn
” = oil heater consent temperature probe.
Pb3
Pb4
Pb1
COD. M12924CA Rel. 0.5 03/2016