Hydronic Module (Fig. 9/10/11) - Carrier AquaSnap Plus Reversible 30AW Série Manuel D'installation

5.5 - Hydronic module (Fig. 9/10/11)

The 30AWH__H units are equipped with an integrated
hydronic module with a variable flows pump self-
controlled that allows fast installation with the aid of a few
external components. The 30AWH__X units, on the other
hand, do not have a circulation pump and expansion
vessel.
For this reason, they must be provided outside. In any case,
all the necessary protections and valves are to be inserted
in the water circuit inside the unit.
Refer to Figure 9 for the exact connection of the water
pipes. Figures 10 and 11 describe the integrated
components in their various configurations.
Size 004-006-008
The operating red knob allows to set several pressure levels in 2 control modes :
- Variable differential pressure (Δp-v)
- Constant differential pressure (Δp-c)
Variable differential pressure (Δp-v)
Constant differential pressure (Δp-c)
Venting function
''Set Up'' procedure :
Factory pre-setting = Δp-c 8.
All functions can be set, activated or deactivated by using the operating red
knob:
- The control mode Δp-v is set on the left of the middle position (from 1 to 8).
- The control mode Δp-c is set on the right of the middle position (from 1 to 8).
- For venting the pump, turn the knob in its middle position (the venting
function is activated after 3 seconds and lasts 10 minutes before going to
Δp-c max mode).
NOTE:
- The variable pressure mode (Δp-v or PP) is recommended in heating systems with radiators.
- The constant pressure mode (Δp-c or CP) is recommended for underfloor-heating circuits.
- All hydronic curves (Fig. 14) have been defined in constant pressure mode for min, medium and max speed.
18
NOTE: The correct dimensioning of the expansion vessel
is left to the installer as a function of the type of plant.
NOTE: The discharge of the safety valve can be
channelled to the outside of the machine using the
pre-cut holes (see Fig. 4). In this case, it is necessary to
provide an open drain funnel.
Size 012-015
The user interface allows to select between 6 pressure levels in 2 control modes:
- 3 constant pressure/power curves (CP)
- 3 proportional pressure curves (PP)
PP1 (flashing fast)
PP2 (flashing fast)
PP3 (flashing fast)
CP1 (flashing slow)
CP2 (flashing slow)
CP3 (flashing slow)
Min flow=1 ; Max flow=3
''Set Up'' procedure :
1) Factory pre-setting
2) Push the button 10 sec
3) With each push the setting changes
4) After 10 sec not pushing the button
5) LED 1 or 2 or 3 is permanently
shining
Constant Pressure Curve CP3
Pump goes to setting mode - LED
starts flashing
LED 1-2-3 shines / control curve and
mode is changing
Setting is adapted – pump goes back
to operation mode
Pump is running with the selected
curve and mode