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USER MANUAL – Release 1.2 of 01/01/2010
Page 35 of 191
Version: 02/03/2010
FA42
4
th
STEP Set: Evaporating pressure value corresponding to the activation of
the 4
th
outdoor fan step.
-50.0
-58
0.0
0
110
230
50.0
725
°C
°F
Bar
Psi
Dec
int
Dec
int
FA43
Evaporating pressure differential between activation and deactivation of the
outdoor fan steps (ciruits 1/2).
0.1
0
0.1
1
25.0
45
14.0
203
°C
°F
Bar
Psi
Dec
int
Dec
int
FA44
Evaporating pressure differential between activation and deactivation of the
outdoor fan steps (ciruits 3/4).
0.1
0
0.1
1
25.0
45
14.0
203
°C
°F
Bar
Psi
Dec
int
Dec
int
Antifreeze – Support – Boiler electric Heaters
Parameter Description
min
max
um
Resolution
Ar 1
Antifreeze /support heaters (air/air units) set-point in cooling mode
Defines the temperature below which the antifreeze heaters are activated in
cooling mode
-50.0
-58
110
230
°C
°F
Dec
int
Ar 2
Antifreeze / support heaters regulation band in cooling mode
0.1
0
25.0
45
°C
°F
Dec
Int
Ar 3
Antifreeze / support heaters (air/air unit) set-point in heating mode
Defines the temperature below which the antifreeze heaters are activated in
heating mode
-50.0
-58
110
230
°C
°F
Dec
int
Ar 4
Antifreeze / support heaters regulation band in heating mode
-50.0
-58
110
230
°C
°F
Dec
int
Ar 5
Antifreeze / support heaters working mode during defrost cycle
0 = activated according to temperature control demand
1 = activated according to temperature control demand and during defrost
cycle
0
1
Ar 6
Temperature probe for controlling antifreeze alarm and antifreeze/support
heaters in cooling mode
0 = Disabled
1 = Evaporator inlet
2 = Evaporator outlet circuits 1 / 2
3 = Evaporator outlet circuits 3 / 4
4 = All evaporators outlet
5 = All evaporators outlet and common outlet
0
5
Ar 7
Temperature probe for controlling antifreeze/support heaters in heating mode
0 = Disabled
1 = Evaporator inlet
2 = Evaporator outlet circuits 1 / 2
3 = Evaporator outlet circuits 3 / 4
4 = All evaporators outlet
5 = All evaporators outlet and common outlet
0
5
Ar 8
Temperature probe for controlling condenser antifreeze heaters
0 = Disabled
1 = Common condenser water inlet
2 = Common condenser water inlet and condenser inlet circuits 1 / 2
3 = Common condenser water inlet and condenser inlet circuits 1 / 2
4 = Condenser water outlet probe circuits 1 / 2
5 = Condenser water outlet probe circuits 1 / 2
6 = All condenser water outlet probes
7 = All condenser water outlet probes and common outlet
0
7
Ar 9
Evaporator/condenser anti-freeze heaters working mode in the case of control
probe fault
0 = OFF
1 = ON
0
1
Ar 10
Antifreeze heaters activation in cooling/heating mode.
0 = Always OFF (cooling and heating)
1 = Cooling mode only depending on temperature control demand
2 = Heating mode only depending on temperature control demand
3 = Cooling and heating mode depending on temperature control demand
0
3
Ar 11
Antifreeze heaters activation in remote OFF/Standby mode.
0 = Always OFF
1 = ON depending on temperature control demand
0
1
Boiler function
Ar 12
Boiler function
0 = Disabled
1 = Integration mode
2 = Heating mode
0
2
Ar 13
External air temperature set point for Boiler heaters activation
-50.0
-58
110
230
°C
°F
Dec
int
Ar 14
External air temperature differential for Boiler heaters deactivation
0.1
0
25.0
45
°C
°F
Dec
int
Ar 15
Boiler heaters activation delay time
0
250
Min
