Roth HKV Montageanleitung Seite 6

Flow rate setting/heating circuit
The fl ow rate display and the screw connec-
tion open/closed are used only for
locking the heating circuits!
1) Use venting key to fully open (counter-
clockwise) LFR or screw connection open/
closed
2) Remove protection cap at 1st heating
circuit, and use the venting key to close
(clockwise) the valve = smallest value
3) Adjust fl ow rate by opening the control
spindle on the valve using the venting key
(anti-clockwise)
LFR: Adjust number of revolutions in
accordance with schematic and read
value on LFR Min. fl ow rate ≥ 0.5 l!
Setting values < 0.5 l are inexact!
Universal: determine and set in
accordance with schematics or
diagram 1 Min. fl ow rate ≥ 0.75
revolutions! Setting values < 0.75
revolutions are inexact!
Proceed similarly for all heating circuits.
4) Mount and connect the actuators in ac-
cordance with the assembly instructions
Overall pressure loss HCM with LFR
10
1,0
1 10
Pressure (mbar)
Heating circuits
HC 12
HC 11
HC 10
HC 9
HC 8
HC 7
HC 6
HC 5
HC 4
HC 3
HC 2
HC 1
100