Air Earth Heat Exchanger; Supplementary Heating Control; Functions Of Additional Circuit Board; Pressure Constants For Controlling Fans - Maico WR 310 Notice De Mise En Service Et D'entretien

UK | 10 Functions of additional circuit board 2
Zone Sensor is set in Auto Time operating
mode using a time programme. The air quality
values determined with CO
humidity sensors are used for demand-based
zone ventilation. The ventilation unit controls
the amounts of supply air automatically. 4
time segments can be saved per day with
supply air quality defined for the zone sensor
 Chapter 6.4.
9.3 Air earth heat exchanger 3-way air
shutter
The 3-way air shutter controls the transport
of outside air from outside via an air earth
heat exchanger or directly. The air shutter is
opened or closed for this purpose.
During the transitional times in particular,
instances may occur when the outside tem-
perature is warmer than the temperature of
air passing through the earth heat exchanger.
If heating, this means that the outside air
can be used more efficiently than the outside
air passing through the geothermal heat
exchanger.
Above and below the set temperature limits
( Chapter 6.10), the outside air is drawn in
via an air earth heat exchanger.

9.4 Supplementary heating control

NOTICE
Incorrect installation will result in unit
damage. If supplementary heating is se-
lected, the power supply for the component
should be switched via an external relay.
NOTICE
Unit damage from incorrectly
connecting the power supply.
The load current must be provided via an
external supply. The load current must not
be switched via the main board.
For more information  Chapter 6.11.
90
and/or VOC and
2
10 Functions of additional circuit
board 2
310/410 320/470
160 Flat 300 Flat
There are 3 slots (170 and Flat units: 2 slots)
for optional additional circuit boards (ZP1 or
ZP2) on the control console.
Any combination of circuit boards is possible.
Installation is as described in the accessories
instructions.
DIP switch setting options
(only 1 function can be set)
● Pressure constants for controlling the fans
● Filter monitoring via pressure measuring
sensor
10.1 Pressure constants for controlling
the fans
The ventilation levels and operating
i
modes cannot be adjusted in operation
with constant pressure. The functions
are disabled.
If „Operation with constant pressure"
i
parameter set to yes  Initialisation:
Ventilation unit runs for 3 minutes with
reference volumetric flow and deter-
mines the pressure in the air channel.
Then the fan selected using the DIP
switch runs at the channel pressure
established. The other fan conveys the
same volumetric flow.
The fans can also be controlled with constant
pressure (rather than constant volumetric flow).
The pressure is measured in the supply air or
exhaust air pipe, depending on where the
pressure sensor is installed. The relevant
fan is controlled as the master fan, the other
(slave fan) is operated with the same volu-
metric flow as the master fan.
To activate operation with constant pressure
and to enter the value limits for pressure
consistency control  Chapter 6.12.
When the pressure loss at the supply air duct
changes (e.g. switching over to disk valve),
the pressure changes and the master fan
170