Electrical Connections (Option) - PENSOTTI PNCC-32N Instruction Manual

6.7 Electrical connections (Option)

Connect the power supply to the terminal board located on the control panel as follows:
a. switch off the power supply at the main switch;
b. remove the front case panel of the boiler. (see paragraph '6.3 Accessing the boiler');
c. remove the screws and remove plate A from the control panel (see fig. 1). With the plate removed, proceed with the
following wires connection:

install the outdoor temperature sensor on contacts marked as Se-Se on the terminal board "B";

install the room thermostat or end switch by removing the jumper Ta-Ta from the terminal board "B" first, and then
connecting the room thermostat or end switch wires (24 DC at these terminals);
d. When wires have been connected, place plate "A" back to position and then the front case panel.
24 Volt DC current at Ta-Ta
terminals. Use only non
power stealing thermostat.
MAINTENANCE INSTRUCTIONS
B
A
Fig. 1
69
SE
SE
TA
TA
CR
Thermostat or End Switch
Key
Outdoor temperature
sensor
Room thermostat OR End
Switch