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LIST OF PARAMETERS
Nr.
Parameter name
17
CH1 max. Temp.
18
CH1 min. Temp.
19
CH1 ON diff.
20
CH1 OFF diff.
21
CH1 attenuation
22
CH2 adjustment
23
CH2 max. Temp.
24
CH2 min. Temp
25
CH2 attenuation
26
CH2 ON diff.
27
CH2 OFF diff.
28
Mix valve on time
29
Mix valve off time
30
Mix valve stop T
31
Mix valve on-off diff
32
Mix valve stop diff.
33
Power control
34
Pump mode
35
Anti-freeze
36
Gas type
37
Min. outside T.
38
Max outside T.
Outdoor Tempera-
38.
ture summer/winter
function
39
Correction Text
40
Emergency T.
41
Parameter reset
42
Flowmeter
43
Protocol
PARAMETER 35 - FROST PROTECTION
The third pump will start up if the outside temperature is lower than parameter 35 (Frost protection) or if the flow temperature is
lower than 5°C. If after 10 minutes the T1 fails to exceed 5°C, a burner will start up at maximum power until T1 exceeds 20°C. If after
10 minutes the T4 is still below parameter 35 but T1 exceeds 5°C the pump will work until T4 exceeds parameter 35.
Factory set-
Lower limit
ting
80°C
10°C
50°C
10°C
7°C
0°C
3°C
0°C
0°C
0°C
1
0
50°C
10°C
25°C
10°C
0°C
0°C
5°C
0°C
3°C
0°C
5 sec
0 sec
7 sec
0 sec
5 sec
0 sec
2°C
0°C
2°C
0°C
1
0
0
0
3°C
-30°C
1
1
0°C
-20°C
18°C
0°C
0°C
0°C
0°C
-30°C
70°C
10°C
0
0
1
0
1
0
Upper limit
Description
80°C
Max. settable value for high system
Par.1
Min temp. value high system (at max. external T.).
Burner re-ignites after said differential.
20°C
E.g.: 70°C – 7°C = 63°C
The burner goes out after said differential.
20°C
E.g.: 70°C+3°C= 73°C
Ch1 temp. attenuation (par.1) only if the high temper-
70°C
ature system thermostat is on.
0 = Temperature at fixed point.
1 = Weather with probe outside
3
2 = 0–10V: power (Acts on power)
3 = 0-10V:temperature (Acts on temperature)
70°C
Max. set heating value low system.
Min temp. value low system (at max. external T.)
Ch2 temp. attenuation (par.3) only if the low temper-
70°C
ature system thermostat is on.
Burner re-ignition differential below low temp. sys-
20°C
tem setpoint
Burner burn out differential exceeding low temp.
20°C
system setpoint
255 sec
Mixer valve opening time
255 sec
Mixer valve closing time
255 sec
Mixer valve stand-by time
30°C
Mixer valve open/closed differential
30°C
Mixer valve stand-by differential
0 = power distributed over min. number burners
1
1 = power distributed over max. number burners
Third pump setpoint:
1
0 = Main pump of system/loop
1 = Low temperature pump
15°C
Initial temp. for frost protection (NB1)
1 = Methane with exhaust flue < 15m
2 = Methane with exhaust flue > 15m
3 = LPG with exhaust flue < 15m
7
4 = LPG with exhaust flue > 15m
5 = Town Gas
6 = Gas F
7 = Gas G
Min external temperature (provides max. flow tem-
30°C
perature value setting)
Max external temperature (provides min. flow tem-
30°C
perature value setting)
Outdoor temperature above which heating circuit
30°C
requests are deactivated
0= function not activated
30°C
External temperature corrector factor
Emergency temperature of slave if the Master breaks
80°C
down.
1 = Slave reset to factory parameters.
1
N.B. Parameter 36 (gas type) is not changed by reset-
ting factory parameters
1
0 = slave fails to check the flowmeter
0 = Eco protocol
1
1 = Argus link
28
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