Connections For Aw2; Sensor Controlled Terminals - Carrier 80AW1 Manual De Instalación

Installation

Connections for AW2

The AW2 system has two connections for terminals and
combined terminals.
Each terminal or combined terminal can have up to 1 sensor
controlled zone, therefore the system supports up to 2
sensor controlled zone (one for each connection).
For connections to Z1 refer to the previous paragraph.
For connections to Z2 refer to the previous paragraph, but:
- for temperature control use the Room temperature sensor
for zone 2 instead of the user interface
- set code 66 instead of code 65.
Possible combinations and control settings
Confi guration
Zone 1 kit
Zone 2 kit
User interface settings
See example of confi guration 4 in fi g. 15.
2 zones system, fl oor and fan coil terminals, both sensor
controlled.
The user interface is placed in the fl oor zone (zone 1) and
the room temperature sensor for zone 2 is placed in the fan
coil zone (zone 2).

Sensor controlled terminals

In sensor controlled terminals, the water temperature
depends not only on the outdoor temperature, but also
(in heating mode) on the room temperature. This solution
grants the best comfort and energy effi ciency, as:
- room temperature setpoint is exactly matched
- room temperature variations are minimized
- water temperature (in heating mode) is always the
minimum required to match the setpoint
In terminals controlled by room thermostats, the water
temperature depends only on the outdoor temperature (in
heating mode). To make sure the system is always capable
to increase the room temperature up to the thermostat
setting (in heating mode), the installer should set the
climatic curve higher, compromising on comfort (especially
for fl oor circuits), temperature variations and energy
effi ciency.
18 80AW1- 80AWT - 80AW2
On both Z1 and Z2, install the 3W kit when the sensor
controlled terminal is a fl oor terminal.
If sensor controlled terminals are connected to both Z1
and Z2, install the 3W kit where the terminal requiring the
lowest water temperature (in heating mode) is connected;
if temperature requirements are equal install two 3W kits. In
all other cases install the D kit.
1
3W
-
1
Code 63
Code 64 0
The 3W kit is placed on the fl oor terminal, which is the one
requiring the lowest water temperature.
2 3 4
D 3W 3W
- 3W D
2 1 1
0 1 2
5 6 7
D D -
3W D -
2 2 0
1 2 0