Adjustment Channels - Resol DeltaSol C/1 Manual

C/1
D e lt a S o l
®
3.1.6Heat quantity measurement
OHQM: Heat quantity
measurement
Adjustment range: OFF...ON-
Factory setting: OFF
FMAX: Flow rate in l/min
Adjustment range 0...20,
in 0.1 steps
Factory setting: 6,0
MEDT: Antifreeze type
Adjustment range: 0...3
Factory setting: 1
MED%: Antifreeze concen-
tration in (Vol-) %
When MEDT 0 or 3 is used,
the parameter MED% is
‚hidden'.
Adjustment range: 20... 70
Factory setting: 45
kWh/MWh:Heat quantity
kWh / MWh
Display channel
4.1.7 ∆T -regulation
DT O: Switch-on tempera-
ture difference
Adjustment range: 1,0 ...
20,0KFactory setting: 6.0
DT A:Switch-off temperature
difference
Adjustment range: 0,5 ... 19,5K
Factory setting: 4.0
10
|
Heat quantity measurement is possible if a flowmeter is
used. For this purpose, the heat quantity measurement op-
tion OHQM has to be enabled.
The flow rate should be read from the flowmeter (l/min)
and has to be adjusted in the channel FMAX. Antifreeze
type and concentration of the heat transfer medium have
to be adjusted in the channels MEDT and MED%.
Antifreeze type:
0 : water
1 : propylene glycol
2 : ethylene glycol
3 : Tyfocor LS / G-LS
®
The flow rate as well as the reference sensors S1 (flow) and
S4 (return) are used for calculating the heat quantity sup-
plied. It is shown in kWh in the channel kWh uand in MWh
in the channel MWh . The overall heat quantity results from
the sum of both values.
The accumulated operating hours can be set back to zero.
As soon as one of the display channels of the heat quantity
is selected, the symbol
button for approx. 2 seconds in order to access the RESET-
mode of the counter. The display symbol
the heat quantity value will be set to 0. Confirm the reset
with the button in order to finish the reset.
In order to interrupt the RESET process, no button should
be pressed for about 5 seconds. The display returns to the
display mode.
This function is a standard differential control. If the switch-
on differential (DT O) is reached, the pump is operated. If
the temperature difference falls below the adjusted switch-
off temperature difference (DT F) the controller switches
off.
Note: The switch-on temperature difference must be at least
1 K higher than the switch-off temperature difference.
is displayed. Press the SET (3)
will flash and