Zone Control Settings; Input Related Functions; Miscellaneous; Installation - Carrier 80AWX-065 series Installation, Operation And Maintenance Instructions

4.12 - Zone Control Settings

Code 105.0 defines the type of room control which is
implemented.
0. No control: Room temperature is not controlled;
comfort is only depending on climatic curve settings.
1. User interface: An additional user interface (see
paragraph Accessories) is connected to the unit and is
placed in the room.
2. Sensor: Used only in combination with 2-zone kit.
3. Thermostat: A thermostat is connected to the Heat/
Cool thermostat input.
4. Unit user interface shifted: Unit user interface is
removed from the unit and installed in the room.
If the user interface is shifted, fill the gap on the unit with
the cap provided (see fig. 4, item 3).

4.13 - Input Related Functions

See paragraph Wiring Connection Diagram.
All the inputs are dry contacts.
Input can be independently configured (code 106) to be
considered active when open or when close.
4.13.1 - Domestic hot water input
See Domestic hot water function.
4.13.2 - Heat/Cool thermostat input
This input can be used to start/stop space heating/cooling
operations.
If a room thermostat is used, connect it to this input.
4.13.3 - Heat/Cool selection input
This input is used to put the system in Heat mode or in
Cool mode.
It is used only if code 106.4 is set to 0.
4.13.4 - High energy rate input
If this input is active and a boiler backup is present, the
outdoor unit turns off and boiler backup is used to meet
the heating and domestic hot water operation.
It has no effect in Cool mode, unless when domestic hot
water is produced.
4.13.5 - System ON/OFF input
This input is used to put the system in OFF mode.
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4.14 - Miscellaneous

Whenever the compressor turns off, it stays off for at least
3 minutes.
Additionally the compressor is prevented to start if
previous start happened less than 10 minutes before.
This time period is referred to as "timeguard"
Do NOT disconnect the electrical power, even if the
system is not used for a long time.
To switch off the system, put it in OFF mode; this will
activate system protections to improve the life of the unit.

5 - INSTALLATION

5.1 - Unit Dimensions and Weights

See paragraph Features for details.

5.2 - Installation Recommendations

Refer to Safety Information Manual.
• Install this device only in sheltered buildings, if possible
insulated.
The unit should NOT be installed in very humid rooms
(for example laundry rooms) or where it may be
subjected to water projections or spray.
• Fix the module to the wall and ensure that the support
is sufficiently strong.
• Fix the module using screws/wall plug fixings suitable
to the wall structure and the module weight.
• When possible, allow a space of minimum 70 cm below
and 30 cm on each side of the module for piping
connections and ease of maintenance.
• See paragraphs Water Connections and Refrigerant
Connections.
• In case of installation with fan coils, a minimum water
quantity of 3 liters/kW is required; install a buffer tank
if required.
• Install a water filter (see fig.1). Water pump and heat
exchanger warranties are void if no filter is installed.