5.3 WIRING OF A MODULATING PUMP
In order to further optimize the operation of the appliance it is possible to use for the pri-
mary circuit a modulating pump WILO STRATOS PARA (check Section ACCESSORIES → 66)
for which the dedicated electronic card Mod10 has been developed.
No other modulating pumps are supported.
The instructions for connecting the WILO STRATOS PARA pumps are given below (see
Section ACCESSORIES → 66).
Each WILO pump includes its power cord and signal cable 0-10V (both 1.5 m long) for con-
nection to the appliance’s electrical panel. For longer cable runs, use a shielded 2x0.75
mm2 0-10V signal cable and a FG7 3Gx2.5mm2 power cord.
Check that power supply is off.1.
Remove the front panel of the appliance and the cover of the electrical panel.2.
Connect the brown wire of the WILO STRATOS PARA pump on the terminal "-" of 3.
the connector HPMP on the Mod10 board. Connect the white wire of the WILO
STRATOS PARA pump on the terminal "+" of the connector HPMP on the Mod10
board. Insulated black and blue wires (see Figure 5.7 Wiring diagram for connec-
tion of Wilo variable rate pumps → 37).
Connect the pump to the mains with an upstream external bipolar switch (see de-4.
tail IP, Figure 5.7 Wiring diagram for connection of Wilo variable rate pumps → 37)
with a delayed action 2 A fuse, or connect it to the terminal clamps inside the units
electrical enclosure (see detail MA, Figure 5.8 Wiring diagram for hooking up the
Wilo variable rate pump powered by the unit → 38).
After finished with all the above operations, close the electrical panel and refit the 5.
front panel of the appliance.
NEVER switch on or off the WILO STRATOS PARA pump through the switch on the power
supply.
