Hqm - Cosmo Multi 3 Montage- Und Bedienungsanleitung

10. HQM

In the HQM menu, up to 7 internal heat quantity measurements and 1 impulse counter can be
activated and adjusted.
NOTE:
The adjustment of the functions is similar to the adjustment of optional functions, see
page 108.
Calorimeter
HQM / Add new function / HQM
Adjustment
Description
channel
Sen. flow Flow sensor selection
Sen. ret. Return sensor selection
Sen. flow Flow rate sensor option
rate
Sen. flow Flow rate sensor selection
rate
Fl.rate Flow rate (only if Sen. flow rate = No) 1.0 ... 500.0 l/min
Relay Relay selection
Fluid type Heat transfer fluid
Concentr. Glycol concentration in the heat
transfer fluid (only if fluid type
= propylene glycol or ethylene
glycol)
Alternative Alternative unit option
unit
Unit Alternative display unit
Factor Conversion factor
Carryover Carryover value (for the first-time
configuration or after a HQM
reset only)
Funct. Activation / Deactivation
Sensor Switch input selection
If the flow rate sensor option is activated, the impulse input or, if available, a Grundfos Direct
Sensor™ can be selected.
The Grundfos Direct Sensors™ will only be available if they have been previously registered in
the Inputs/Modules menu. The impulse rate must be adjusted in that menu as well.
If the flow rate sensor option is deactivated, the controller calculates the heat quantity by means
of a fixed flow rate value.This is called heat quantity balancing. For this purpose, the flow rate
must be read from the flowmeter at 100 % pump speed and adjusted in the adjustment channel
Fl.rate. In addition to that, a relay must be allocated. Heat quantity balancing is in effect when-
ever the allocated relay is active.
In the adjustment channel Fluid type the heat transfer fluid must be selected. If either propyl-
ene glycol or ethylene glycol is selected, the adjustment channel Concentration is indicated in
which the antifreeze ratio of the heat transfer fluid can be adjusted.
If a calorimeter is being configured for the first time or after the overall quantity has been reset,
the parameter Carryover appears. A former value which is to be added to the overall quantity
can be entered.
When the Alternative unit is activated, the controller converts the heat quantity into the
quantity of fossil fuels (coal, oil or gas) saved, or the CO
alternative unit can be selected. A conversion factor must be adjusted for the calculation. The
conversion factor depends on the arrangement in use and has to be determined individually.
Adjustment range /
Factory setting
selection
system dependent system dependent
system dependent system dependent
Yes, No No
system dependent -
3.0 l/min
system dependent -
Tyfo LS, Propyl., Ethyl., Propyl.
Water
20 ... 70 % 45 %
Yes, No No
Coal, Gas, Oil, CO CO
2
0.0000001 ... 100.0000000 0.5000000
-
-
Activated, Deactivated, Activated
Switch
- -
emission saved respectively. The
2
167
2