PAW FC4.13, Manual For Specialised Craftsman

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3.4.2 Manual offset of the circulation pump
Main menu / Circulation / Circ. fl . rate
Adjustment
channel
Description
Adjustment range /
selection Factory
setting
Circ. speed Circulation pump speed 20 … 100 % 100 %
Circ. speed_min Minimum speed of the circulation pump 10 … 100 % 70 %
∆
T-circ. pipe Indication of temperature loss in the circula-
tion pipe - -
back
L'
R4
R1-R3 1 (1) A (100 ... 240) V~
4 (1) A 240 V~
4 (1) A 24V
R4
+VBus-
S1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
S2 S3 S4 S5 S6 S7 S8
Temp. Sensor
FlowRotor
N
Isolate mains before removing cover!
Vor Öffnen Gerät spannungslos schalten!
Use neutral conductor common terminal block
Neutralleiter-Sammelklemme benutzen!
Use PE Common terminal block
Schutzleiter-Sammelklemme benutzen
VFS/US
S9 S10
V40
PWM1
0-10V
PWM2
0-10V
PWM3
0-10V
PWM4
0-10V
17 18 19 20 22 24 26 28 30 31 32
R2 R3 R4 R1
S9
dV
Zirkulation
PWM3
R3
PWM2
PWM1
S8
S6
S2
R2
S3
S5
S4
S1
S7
R_pot.
frei
The temperature loss in the circulation pipe (beginning and end of the circulation pipe)
can be reduced by increasing the pump speed Circ. speed of the secondary pump.
The current temperature difference between the reference sensors will be indicat-
ed as
∆
T circ. pipe. In order to comply with the DVGW guidelines, this tempera-
ture difference should be less than 5 K. If the temperature difference is higher than
5 K, increase the circulation speed.
In the variants, the temperature difference will be calculated as follows:
Variant SUS Sys 1
∆
T-circ. pipe = Temperature at AH sensor - temperature circulation return sensor
T-circ. RET
Variants SUS Sys 2, 3
∆
T-circ. pipe = Temperature secondary store sensor T Sink c. - temperature circu-
lation return sensor T-circ. RET. (S8)
3.4.3 Disinfection
Main menu / Disinfection
Adjustment
channel
Description
Adjustment range /
selection Factory
setting
Disinfection Disinfection Yes, No No
Manual
start-up Manual start-up of the disinfection Start, Abort -
T-disinf. set Set temperature for the disinfection 60 … 75 °C 60 °C
Disinf.
duration Duration of the disinfection 30 … 240 min 60 min
Disinf. day Sub-menu for selecting the days for the automatic
start-up of the disinfection - -
Disinf. time Time for the automatic start-up of the disinfection 00:00 … 23:59 01:00
back
This function helps to contain the spread of Legionella in the secondary store and
in the circulation pipe. The Desinfection function will automatically start, if the
adjusted Disinf. time on the adjusted Disinf. day has been reached.
By means of the menu item Manual start-up the disinfection can be started
manually at any time.
When the disinfection function starts, the secondary store will be loaded. The cir-
culation pump starts running at Circ. speed_min. During disinfection, the speed of
the primary pump is controlled such that the temperature T-Disinf set is reached
and held at the T-CW sensor as well as at the T-circ RET sensor.
The Disinfection is considered successful when, during the Disinf. duration, the
required set temperature is kept up at the sensors T-CW and T-circ RET
.
The
store loading and the circulation pump become inactive and the message Disinf.
successful the {Date} is indicated.
The highest temperature reached at the T-circ. RET sensor is indicated in the
message max temp. at Circ. RET = {max. temp.} °C.
When the disinfection function is active, it can be aborted by means of the menu
item Abort at any time.