Adjustment Of The Setpoint; Sealing; Function Test - Danfoss PCVD Instructions Manual

Instructions
VI.JA.C3.5B
PCVD, PCVSAD

7.6 Adjustment of the Setpoint

The setpoint of the pressure must be adjusted at
the pilot controller AVD 1. The setpoint range is
indicated on the rating plate of the actuator.
1
Procedure
1. Prior to the differential pressure adjustment,
start the system as described in section 7.4.
The differential pressure can also be adjusted
while the bypass 2 is opened.
2. Adjust the flow rate at a valve in flowdirection
after the controller PCVD.
Value approx. 50 % of the max. flow rate 3.
2 p2 Regler PCVD
3
p
0 50%
3. Adjustment of the pressure by turning the
setpoint adjuster 4.
Turning to the right, increases the setpoint.
SW 22
4
Turning to the left, reduces the setpoint.

7.7 Sealing

The setpoint adjusters may be sealed.

7.8 Function Test

Check the pressure of the running system with
different load situations.
If the pressure is exceeded in either direction,
adjust the pressure as described in section 7.6.
p1
V
max
© Danfoss | 2016.05 | 11