Wolf FGB-K Series Installation And Maintenance Instructions For Contractors page 38

Parameter H37
Pump control type
Factory setting: see table
Factory setting: 0 to 1
Individual setting:_____
Parameter H38
Set spread, pump control
Factory setting: see table
Setting range: 1 to 30 °C
Individual setting:_____
Parameter H39
Time, soft start
Factory setting: see table
Setting range: 0 to 10 min
Individual setting:_____
Parameter H40
System configuration
Factory setting: see table
Factory setting: 1 to 3
Individual setting:_____
System configuration 01
Direct heating circuit on the condensing boiler
• Burner is activated following demand from the direct heating circuit
• Internal appliance pump is enabled as a heating circuit pump
• Thermostatic boiler control, set value specified by heating circuit
38
17. Parameter description
For setting the type of pump speed control in heating mode and with cascade opera-
tion.
0: Constant = fixed pump speed (H17)
1: Spread ΔT = speed control between H16 and H17 to achieve flow/return
temperature spread (H38)
If spread control ΔT is enabled in parameter H37, the set spread value specified in
H38 applies. Via modification of the pump speed, the spread between flow and return
is regulated within the speed limits set in H16 and H17.
In heating mode, the burner is run at reduced output for the set time following burner
start.
The condensing boiler is matched to the heating system by selecting from 3 precon-
figured system configurations under parameter H40. This parameter influences the
function of the internal appliance pump.
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