15
The following table shows the thermostat output functions
depending on the unit type used.
G: indoor fan on/off.
Y: compressor 1 on/off (single-circuit unit)
Y1: compressor 1 on/off
Y2: compressor 2 on/off
W: additional heating stage 1 on/off
W2: additional heating stage 2 on/off
O: cycle reversing valve on/off (heat pump units)
Thermostat Single-circuit cooling only unit Twin-circuit cooling only unit Single-circuit reversible unit Twin-circuit reversible unit
outputs/ Output name Output function Output name Output function Output name Output function Output name Output function
rooftop thermostat thermostat thermostat thermostat thermostat thermostat thermostat thermostat
inputs
GGGGGGGGG
Y1_W2 Y1_W2 Y1 Y1_W2 Y1 Y1_W2 W2 Y1_W2 Y1
Y_Y2 NC NC Y_Y2 Y2 Y_Y2 Y Y_Y2 Y2
W_W1 W_W1 WW_W1 WW_W1 WW_W1 W
O_W2 O_W2 W2 O_W2 W2 O_W2 OO_W2 O
nc: not connected
4.3.10 - Description of the Outputs/Tests menu
4.3.10.1 - General
This menu displays the status of the controller outputs. More-
over, when the machine is fully stopped (LOFF) the outputs can
be activated for manual or automatic tests (the access to the
tests is password controlled).
4.3.10.2 - Menu description
OUTPUTS STATUS & TESTS MENU [2] [3]
ITEM FORMAT UNITS
0b
1
b
2
tESt
FAIL
Good -
1On-
OFF
tESt
FAIL
Good
Forc
2
StoP
LOW
HIGH
tESt -
3
StoP
LOW
HIGH
tESt -
4 [1] b
1
b
2
b
3
-
tESt
5 [1] b
1
b
2
-
tESt
DESCRIPTION
Compressor command status
b
1
= compressor A1
b
2
= compressor B1
In test mode, the Arrow buttons display 01 and 10 in succession, so as to force the status of the compressor outputs in turn.
During the test phase, power to the compressor is switched on for 10 seconds only. It is then not possible to restart the
compressor for a further 30 seconds. When the test is completed the following is displayed:
- Fail: displayed if the test has failed because the compressor was not started or run in reverse rotation.
- Good: displayed if test was successful
Indoor fan control status.
On: the fan operates
OFF: the fan is shut down
Forc: this item is displayed only when the unit is stopped locally (LOFF). Selecting this item authorises turning ON the
indoor fan with no delay and for an unlimited length of time. The indoor fan will remain on until any button of the user
interface is pressed: it is then immediately stopped.
During the test phase the fan supply is set to on for only 10 seconds. When the test has been completed, the following
display is shown:
- Fail: displayed if the test has failed because the fan was not started
- Good: displayed if test was successful
Two-speed fan status, circuit A
In test mode this item permits testing the fan speeds.
Stop = fan is stopped
Low = fan is in low speed
High = fan is in high speed
Two-speed fan status, circuit B
In test mode this item permits testing the fan speeds.
Stop = fan is stopped
Low = fan is in low speed
High = fan is in high speed
Additional heating/gas stage status
b
1
= stage 1
b
2
= stage 2
b
3
= stage 3
In test mode the arrow keys successively display 001, 010 and 100 to force the status of each additional stage in turn.
This item is only displayed for units controlling additional electric heater stages. See section 5.14.
4-way reversing cycle valve status. In test mode, the arrow keys successively display 01 and 10, in order to authorise the test
for each valve in turn.
b
1
= valve circuit A
b
2
= valve circuit B
This item is only displayed for heat pump units.
To Next Page
Loading...
