Controller operation
System operation is set and monitored through the control settings.
The Conex II user interface allows navigating through the settings and modifying them.
Code
Name
0
POWER
START/STOP of THE SYSTEM
HEATING /
1
heating (heating)/ cooling (cooling) selection
COOLING
Comfort/ECO/Anti-Freeze (antifreeze) selection for terminal
2
Z1 STATUS
zone 1
Comfort/ECO/Anti-Freeze (antifreeze) selection for terminal
3
Z2 STATUS
zone 2
4
OUTDOOR T° O
Outdoor T° value measured by the hydronic module
5
ROOM T° A1
Room T° value, meaasured by the Conex II user interface
Room T° value, meaasured by an additional sensor, in terminal
6
ROOM T° A2
zone 2
7
WIN SETPT A1
In heating mode, wished room T° in terminal zone 1
8
SUM SETPT A1
In cooling mode, wished room T° in terminal zone 1
9
ADJUST T° Z1
Water T° adjustment (sensor correction) in terminal zone 1
10
WIN SETPT A2
In heating mode, wished room T° in terminal zone 2
11
SUM SETPT A2
In cooling mode, wished room T° in terminal zone 2
12
ADJUST T° Z2
Water T° adjustment (sensor correction) in terminal zone 2
Allows to switch ON the auxiliary heaters when the CDU is out
13
AUX IF DEF
of order
In ECO mode, the wished ambient temperature is decreased by
14
ECO T° REDUC
the value of this code
Minimum outdoor T° depending on the country where the
20
REGION T° O
system is installed
The system stop to heat when the outdoor T° is equal or
21
STOP H T° O
superior to the value of this code
22
NO HEAT T W1
In heating mode, minimum leaving water T° in terminal zone 1
23
NO HEAT T W2
In heating mode, minimum leaving water T° in terminal zone 2
24
MAX W T° W1
In heating mode, maximum leaving water T° in terminal zone 1
25
MAX W T° W2
In heating mode, maximum leaving water T° in terminal zone 2
26
MIN S T° W1
In cooling mode, minimum leaving water T° in terminal zone 1
27
MIN S T° W2
In cooling mode, minimum leaving water T° in terminal zone 2
The outdoor T° must be below this value to allow the electric
28
AUX T° O
heaters to be ON
If the diff erence between water setpoint and water
29
AUX HYST
temperature is higher than this value, electric heaters are
allowed to turn on
30
AUX DELAY
Delay time before switching the electric heaters ON
Number of electric heaters allowed to heat the house:
0AP: no auxiliary heaters allowed
31
AUX NUMBER
1AP: 1 auxiliary heater allowed
2AP: 2 auxiliary heaters allowed
Dry contact ECO /Anti-Freeze (antifreeze)/frequency reduction
32
E13 STATUS
(frequency reduction) / EJP (backup boiler used instead od heat
pump) / SAd (system on/standy) selection
33
FREQ REDUCT
Value of the frequency reduction in % of CDU
34
CDU T° O
Outdoor T° value measured by the CDU sensor
35
REFRIG T° TC
Refrigerant T° value measured by the CDU sensor
36
SUCTION T°
Compressor suction T° value measured by the CDU sensor
12
80AW1- 80AWT - 80AW2
Description
Possibility
Min Max
OFF / on
HEATING = 0/
COOLING = 1
CFt/ECO/A_F
CFt/ECO/A_F
READING
READING
READING
15
25
20
30
-5
5
15
25
20
30
-5
5
YES/no
1
4
-30
10
15
25
15
55
15
55
20
70
20
70
5
25
5
25
-30
25
5
0
0
60
0AP/1AP/2AP
ECO / A_F / F_r /
EJP / SAd
50
100
READING
READING
READING
Factory
Unit
OFF
1
CFt
CFt
°C
°C
20
°C
22
°C
0
°C
20
°C
22
°C
0
°C
no
2
°C
-7
°C
18
°C
20
°C
20
°C
35
°C
35
°C
18
°C
18
°C
4
°C
3
°C
10
minutes
0AP
ECO
100
%
°C
°C
°C