Carrier 80AW9025 Manuel D'installation page 10

Controller operation
Output configuration
There are 2 configurable output (see paragraph Terminal
block description) that can perform different functions
(code 109).
If code 109.0=0, output control 3 way valve of zone 2 (not
supplied); settings of codes 109.1 and 109.2 are ignored.
If code 109.0=1, settings of codes 109.1 and 109.2
determine the operation of the configurable output.
Fan coil
The output can be used to turn ON / OFF fan coil units. The
available options are shown in the variable table.
Zone control settings
Code 105.0 and 105.1 define which kind of room control is
implemented in zone 1 and zone 2.
Input related functions
ON/OFF Z1 - ON/OFF Z2
This input can be used to start/stop space heating/cooling
operations in zone 1 / zone 2.
In case a room thermostat is used in zone 1 / zone 2,
connect it to this input.
Input can be configured as normally open or normally close
by changing setting of code 106.1 (see hydronic module
documentation).
Installation
Unit Dimensions and Weights
See paragraph Features for data.
80AW9025
10
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Dehumidifier
The output is used to turn ON/OFF a dehumidifier.
Dehumidifier is turned on in Cool mode, when humidity is
higher than value of code 110.
It works only if room control is done by user interface (code
105.0=1 or 4 for zone1; code 105.1=1 or 4 for zone 2).
SAFETY Z1 - SAFETY Z2
This input is used to warn the system that the water
temperature in zone 1 / zone 2 is too high.
It can be used in combination with 80AW9024 and a relay
(field supplied), as described in the electrical scheme. Install
the relay on the DIN guide in the control box (fig. 9, item 1).
Input can be configured as normally open or normally close
by changing setting of code 106.7 (see hydronic module
documentation).