Connecting The External Probe - Baxi FOURTECH 24 F Manual Para El Usuario Y El Instalador

26. CONNECTING THE EXTERNAL PROBE

The wiring harness leaving the control board includes to RED wires fitted with faston covers. Connect the external probe
to these two wires.
With the external probe connected it is possible to change the curve "kt" (Graph 1) by means of the
"kt" curves
27. CONNECTION OF AN EXTERNAL STORAGE BOILER
Model 1.24 F - 1.24 - 1.14 F - 1.14
The DHW priority sensor NTC and the motor of the 3-way valve are not included in the kit of the appliance because they
are supplied as accessories.
STORAGE BOILER PROBE CONNECTION
The boiler may be connected to an external storage boiler. Hydraulically connect the storage boiler as in fig. 15. Connect
the DHW priority sensor NTC to the terminals 5-6 on the terminal block M2. The sensitive element of the sensor NTC
must be inserted in the special well provided on the storage boiler. The DHW temperature (35 °C...60 °C) is regulated by
+/–
means of the buttons.
UB STORAGE BOILER
UR
HEATER
V3V EXTERNAL THREE-WAY VALVE
M2 CONNECTING TERMINAL
BLOCK
SB
DHW PRIORITY STORAGE
BOILER PROBE
MR HEATING DELIVERY
MB DHW DELIVERY
RR HEATING/STORAGE BOILER
RETURN
Figure 14
IMPORTANT:
Ensure that parameter F03 = 03 (section 21).
ELECTRICAL CONNECTION OF THE 3-WAY VALVE MOTOR (models 1.24 F - 1.24 - 1.14 F - 1.14)
The motor of the 3-way valve and the respective wiring are supplied separately as a kit. Connect the motor of the 3-way
valve as described in the instructions supplied with the accessory.
INSTRUCTIONS FOR FITTERS
TM
TM = Delivery temperature range
Te = External temperature
56
+/-
buttons.
Te
Chart 2
926.116.5 - EN