Connecting An External Hot Water Tank; D.h.w. Storage Tank Sensor Connection - Baxi Luna 3 Comfort Series Installation And Servicing Instructions

With the external temperature sensor connected, the heating delivery temperature can be adjusted in two different
ways.
If the remote control is installed in the boiler (section 7.1), the heating flow temperature adjustment depends on the curve
K reG (graph 3) set manually by operating the buttons +/-
If the remote control is wall-mounted (section 7.2), the heating flow temperature adjustment is automatic. The electronic
control system automatically sets the correct climatic curve according to the outside temperature and room temperature
measured.
IMportant: the tM flow temperature value depend on the F16 parameter setting (see section 19). The maximum flow
temperature value could be 85° or 45 °C.
K reG constant curves
tm MaX = 45°c
t.e (°c)
tM = flow temperature (°C)
te = external temperature (°C)

9. connecting an external hot water tank

Model 1.310 Fi
legend
uB hot water tank unit
ur heating unit
M connection terminal block
sB
DHW priority hot water tank sensor
Mr heating flow
MB
hot water tank flow
rr heating/hot water tank return

D.H.W. storaGe tanK sensor connectIon

The boiler is arranged for connection of an external D.H.W.
storage tank.
Connect the D.H.W. storage tank pipes as shown in figure 29.
Connect the DHW priority ntc sensor to terminals 5-6 on the
terminal block M. Insert the NTC sensor probe in the special
hole on the D.H.W. storage tank.
The domestic hot water temperature (35°...65 °C) is adjusted by
+ -
operating the buttons /
NOTES
Make sure parameter F03 = 05 (section 19).
InstructIons pertaInInG to tHe Installer
t.m (°c)
.
.
tm MaX = 85°c
t.e (°c)
Figure 9
8
t.m (°c)
Graph 3
95.188.3 - GB