Technical data

39
7.3 Parameters
Par.
Setting
Factory setting
InterSystem
Description
HE 26
HE
40C
0
Service code
[15]
-
-
Access to installer settings. The service code must be entered
(=15).
1
System type
1
1
0 = standard
1 = heating only operation + indirect hot water tank
2 = hot water only operation
3 = heating only operation
2
CH pump continuous
0
0
0 = pump normal with overrun
1 = pump on continuously; 2 = n/a
3
Set CH power
50
99
Setting maximum CH load, range c
–
99% (or 100 if button
pressed again when 99 reached)
4
Set max power
50
99
Setting maximum power (can be increased to 99)
5
Min. supply temperature of the control
line
25
25
Setting range 10°C to 25°C (Weather
-
dependent control)
6
Min. outside tempera
ture of the control
line
-
7
-
7
Setting range
-
9°C to 10°C (Weather
-
dependent control)
7
Max. outside temperature of the control
line
25
25
Setting range 10°C to 30°C (Weather
-
dependent control)
8
CH pump overrun time after CH
operation
1
1
Setting range
0
-
15 minutes
9
CH pump overrun time after external
HW tank operation
2
2
Setting range 0
-
15 minutes (n/a)
A
Position of three
-
way or two
-
way valve
0
0
0 = output signal given for CH operation (n/a)
1 = output signal given for HW tank operation (n/a)
2 = output signal given for DHW and for CH operation
b
HW booster
0
0
0 = disabled
1 = enabled
C
Step modulation
1
1
0 = step modulation off during CH operation
1 = step modulation on during CH operation
c
Min speed in CH operation
30
30
Setting range
25 to 50% of fan speed (Note: For propane or
for appliances with flue non-return valve, set 40)
d
Min fan speed in HW operation
30
30
Setting range 25 to 50% (Note: For propane or for appliances
with flue non-return valve, set 40)
E
Min. supply tempe
rature during OT
demand
10
10
Setting range 10°C to 60°C. (OT = OpenTherm stat)
E
.
OT response
1
1
0 = Ignore the OT demand if it is lower than parameter E
1 = Set the value at parameter E, if the OT demand is lower
2 = OT device is switched off and the room stat functions as
an on/off switch, with the supply temp set at the appliance.
F
Starting speed CH
70
50
Setting range 50 to 99% (Note: For propane, set 50).
This parameter sets the fan speed for ignition and post purge.
F.
Starting speed DHW
(not applicable)
70
50
Setting range 50 to 99% (Note: For propane, set 50).
This parameter sets the fan speed for ignition and post purge
h
Max. fan speed
45
65
Setting range 40 to 50 (40 = 4000 rpm) for HE 26 or 60
-
70 for
HE 40C. The absolute maximum speed can be set through
this parameter.
n
CH supply temperature when heating
DHW tank
85
85
Supply temperature during indirect hot water tank heating
Setting Range 60°C to 90°C
o
Heating delay after hw use
0
0
(n/a) (0 to 15 mins).
P
Minimum switch off t
ime during CH
operation
5
5
Setting range 0 to 15 minutes (anti cycling function)