Friwa
2.3
Circulation option (demand variant)
Control of circulating pump via demand (impulse)
A short impulse starts the circulating pump. The pump is
operated for the adjusted period of time (Circ. run). After
this period of time, a new circulation demand will be blocked
for the adjusted period of time (Circ. wait). The active function
will be shown on the display.
P1
loading pump
Pc
circulating pump (optional)
T-HW
sensor - hot water temperature
Main Menu:
MeAs. values
Reports
BAlances
Settings
Options
Manual Operation
User code
Expert
22
|
T- HW
T- S
T- CW
P1
Activating the circulation (demand):
--> 1. Options
Options
Parameter
Range
Circulat.
No/Dem./Therm.
default is NO
--> 2. Adjustment values
Settings
Parameter
Range
1 ... 10 Min.,
Circ. run
default is 2 Min.
0 ... 20 Min.,
Circ. wait
default is 10 Min.
--> 3. Measured values
Meas. values
Parameter
Range
Circulation
Off ... Off
--> 4. Checking the function
Open tap for hot water delivery.
S8
dV
T-CW
sensor - cold water temperature
T-S
sensor - heat source temperature
dV
fl ow rate measuring instrument
Description
demand
circulating pump starts after the tap has
been opened
Description
runtime of circulating pump
breaktime of circulating pump
Description
status of circulating pump
Pc
cold water