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R2C 28 - RAD - ING - Manuale - 2101.1_SKB1.3_MIAB3013_R7_B3_v.28_kW_firm.H048D
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1. INSTALLATION
INST
ALLER
1.1.16. OPTIONAL ELECTRICAL
CONNECTIONS
The cables should be inserted inside the boiler
using the cable glands ‘P1’ and ‘P2’ placed under
the board (see fig. 1). Make a hole on the cable
gland, smaller than the cable diameter, to make
sure that the air cannot pass through.
To wire the optionals below:
• (SE) EXTERNAL TEMPERATURE PROBE COD.
73518LA
• (TA) ENVIRONMENT THERMOSTAT
• (CR) REMOTE CONTROL OPEN THERM COD. 40-
00017
use the electronic board placed inside the control
panel as follows:
DANGER
Cut off the voltage from the main switch.
› remove the boiler’s front casing (refer to chapter
ACCESSING THE BOILER);
› remove the crankcase of the control panel
(see chapter ACCESSING THE ELECTRONIC
BOARD).
· For the external temperature Probe connect
the two non-polarized conductors to the
contacts of the terminal M0904 (see ‘SE’ fig.
2).
· For the environment Thermostat or Remote
control, first remove the bridge on the
contacts of the terminal M0904 and then
connect the two non-polarized conductors
of the environment Thermostat or Remote
control (see ‘TA’ or ‘CR’ fig. 2).
After performing these operations, remount the
crankcase and the front casing.
P1
P2
SE
TA
CR
fig. 1
fig. 2
