Controller operation
Code
Name
37
DISCHARGE T°
Compressor discharge T° value measured by the CDU sensor
38
OUT COIL T°
Outdoor coil T° value measured by the CDU sensor
39
T° W A
Value of the water T° entering in heat exchanger
40
T° W B
T° of water measured by sensor TWB
41
T° W C
T° of water exiting heat exchanger
42
T° W 1
T° of water directed to terminal zone 1
43
T° W 2
T° of water directed to terminal zone 2
44
DS SETPT W
Main water setpoint
45
SETPOINT W1
Setpoint for the water directed to terminal zone 1
46
SETPOINT W2
Setpoint for the water directed to terminal zone 2
47
COOL IN Z1
Allows for cooling in terminal zone 1
48
COOL IN Z2
Allows for cooling in terminal zone 2
Alllows to force the system in a specifi c operating mode:
49
FORCED MODE
standby (standby), booster heat (heating at maximum
frequency) booster cool (cooling at maximum frequency)
Operating mode requested by the hydronic module: heating
(heating), booster heating (heating at maximum frequency),
50
CDU ASK MODE
cooling (cooling), booster cooling (cooling at maximum
frequency), reduced heating (heating at reduced frequency),
reduced coooling (cooling)
51
CDU MODE
Actual CDU operating mode
52
DEF MODULE
Display of the faults of the module
53
DEF CDU
Display of the faults of the CDU
54
MAX COMP FREQ Maximum compressor frequency
55
REQUEST FREQ
Compressor frequency requested by the hydronic module
56
REAL FREQ
Actual CDU compressor frequency
Number of hours the compressor has been running since the
57
COMP RUNTIME
beginning
State of the fl ow switch depending of the waterfl ow in the
58
FLOW SW MODE
system
59
CONEX NUMBER User interface software versione
60
DS NUMBER
PCB2 board software version (see electrical scheme)
61
CA NUMBER
PCB1 board software version (see electrical scheme)
62
CDU CAPACITY
Size of the CDU connected to the hydronic module
NO TERMINAL/
Type of zone kit connected to zone 1: nothing connected
63
3 WAY VALVE/
(NO TERMINAL), kit with 3 way valve (3 WAY VALVE), direck kit
DIRECT
(DIRECT)
NO TERMINAL/
Type of zone kit connected to zone 2: nothing connected
64
3 WAY VALVE/
(NO TERMINAL), kit with 3 way valve (3 WAY VALVE), direct kit
DIRECT
(DIRECT)
65
CONEX IN Z1
Presence of user interface in terminal zone 1
66
ROOM SENS Z2
Presence of room temperature sensor in terminal zone 2
67
OP. OUT RANGE
Operating outside allowed range
Description
Possibility
Min Max
READING
READING
READING
READING
READING
READING
READING
READING
READING
READING
YES / no
YES / no
no/Stb/b_h /b_c
OFF/Stb/h/b_h/
READING
c/b_c/r_h/r_c
OFF/Stb/h/b_h/
READING
c/b_c/r_h/r_c
READING
READING
READING
READING
READING
READING
READING
READING
READING
READING
5 / 6.5 / 10
READING
/ 12.5
NO
TERMINAL=0
3 WAY VALVE=1
TERMINAL
DIRECT=2
NO
TERMINAL=0
3 WAY VALVE=1
TERMINAL
DIRECT=2
YES / no
YES / no
YES / no
READING
80AW1- 80AWT - 80AW2
Factory
Unit
°C
°C
°C
°C
°C
°C
°C
°C
no
no
no
Hz
Hz
Hz
hours
kW
NO
NO
YES
no
13