Drayton SHR 521 20, Руководство по установке и эксплуатации

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SHR 521 20
© Dra
yton
06
334
SHR 521
20.monen.
ind
d
| 12
4.1.6 Heat quantity balancing
OHQM :Heat quantity balan-
cing
Adjustment range: OFF ... ON
Factory setting: OFF
Heat quantity balancing is possible for all systems in conjunc-
tion with a flowmeter. You just have to activate the option
heat quantity balancing in the mode
OHQM .
The flow volume read by the flowmeter (l/min) must be
selected in the mode
FMAX
. Antifreeze type and concen-
tration of the heat transfer medium are indicated in modes
MEDT and MED%.
Type of antifreeze:
0 : water
1 : propylene glycol
2 : ethylene glycol
3 : Tyfocor
®
LS / G-LS
FMAX:
Volume flow in l/min
Adjustment range 0 ... 20
in steps of 0,1
Factory setting 6,0
kWh/MWh
:Heat quantity
in kWh / MWh
display mode
MEDT: Type of antifreeze
Adjustment range 0 ... 3
Factory setting 1
MED%:
Concentration of
antifreeze in (Vol-) %
MED% is blinded out by
MEDT 0 and 3.
Adjustment range 20 ... 70
Factory setting 45
The heat quantity transferred is calculated by the flow vo-
lume and the reference sensors of feed flow S1 and return
flow S4. It is shown in kWh in mode
kWh and in MWh in
the mode MWh . The sum of both modes form the total
heat output.
The total heat quantity can be reset. As soon as one of the
display modes of the heat quantity is selected, the symbol
is permanently shown on the display. The button SET
(3) must be pressed for approx. 2 seconds to return to
the RESET mode of the counter. The display-symbol is
flashing and the value for heat quantity will be set to 0. To
finish the RESET-procedure, the button must be pressed
for confirmation.
To interrupt the RESET-procedure, no button should be
pressed for about 5 seconds. The controller returns auto-
matically into menu mode.