67
adjustment channel Description Adjustment range / selection Factory setting
Demand Demand relay selection system dependent system dependent
Loading pump Loading pump option Yes, No No
Relay Loading pump relay selection system dependent system dependent
Overrun time Overrun option Yes, No No
Duration Overrun time 1 ... 10 min 1 min
Mode Operating mode Boiler, Therm. Therm.
Sensor 1 Sensor 1 system dependent system dependent
Sensor 2 Sensor 2 (only if Mode = Boiler) system dependent system dependent
Ton Switch-on temperature 0 ... 94 °C [32 ... 202 °F] 40 °C [104 °F]
To Switch-o temperature 1 ... 95 °C [34 ... 204 °F] 45 °C [114 °F]
Timer Timer option Yes, No No
Timer Timer - -
Days of the week Day selection
All days, Monday ... Sunday,
Continue
-
Timer Time frame adjustment 00:00 ... 23:45 -
Funct. Activation / Deactivation Activ., Deactivated Deactivated
Heating / Opt. functions / Add new function... / DHW heating
11 HQM
In the HQM menu, up to seven internal heat quan-
tity measurements can be activated and adjusted.
By selecting the menu item New HQM, a new heat
quantity measurement can be activated.
A menu opens in which all adjustments required for
the heat quantity measurement can be made.
If the Flow rate sensor option is activated, the im-
pulse input or, if available, a Grundfos Direct Sensor™
can be selected. Grundfos Direct Sensors™ are only
available if they have been previously registered in
the In-/Outputs menu. The impulse rate must be ad-
justed in that menu as well.
If the Flow rate sensor option is deactivated, the
controller calculates the heat quantity by means
of a xed ow rate value. This is called heat quan-
tity balancing. For this purpose, the ow rate must
be read from the owmeter at 100 % pump speed
and adjusted in the adjustment channel Flow rate.
In addition to that, a Relay must be allocated. Heat
quantity balancing is in eect whenever the alloca-
ted relay is active.
295931-36390-8667 SOM 8 plus_en.indb 67 20.10.2011 13:14:55
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