PENSOTTI PNCC-32N, Instruction Manual

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MAINTENANCE INSTRUCTIONS
69
Ta
B
L
N
Ta
Se
Se
A
TA
CR
SE
Fig. 1
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.
Key
SE
Outdoor temperature
sensor
TA
Room thermostat OR End
Switch
Fig. 1
24 Volt DC current at Ta-Ta
terminals. Use only non
power stealing thermostat.
Thermostat or End Switch