STEP 7
Fill and ventilate the pressure maintenance pump(s) and
the piping.
• The Shut off devices at the intake side of the pump(s)
must be opened completely and the regulating valve
at the pumps outlet side must be closed completely.
• Open the ventilating valve at the pump(s).
• If an EMCF-1 V makeup module is installed, go to manual
mode (user level 3), see instruction manual PHP A-1,
chapter 5.7, ”user level 3”.
• Switch on the output ”makeup valve Y1” (”output: on”)
and fill the vessel until a continuous water jet leaks from
the ventilation valve at the pressure maintenance pump.
After this set the output ”makeup valve Y1” to automatic
mode (”output: auto”).
PHP A-4, 6, 8 & 9 Instruction Manual /
Commissioning PHP A-4, 6, 8 & 9
14
Figure 5:
ventilation of the pressure maintenance pump(s)
• If a EMCF-1 V makeup module is not installed, you have
to fill the vessel (e.g. via the emptying at the connection
of the overflow pipe - see figure 5, detail B) until
a continuous water jet leaks from the ventilation valve
(detail A) at the pressure maintenance pump.
• To ensure a complete ventilation of the pump start and
stop the pump in manual mode (”output: Test”, operate
with ”F1”) several times.
• In the course of these pump starts you have to check the
direction of the rotation of the pump motor. The fan wheel
must rotate according to the sticker on top of the motor
cover. You can see the fan wheel through the holes of the
pump cover.
• If the fan wheel doesn‘t rotate in the right direction, you
have to change 2 of the 3 phases to weaken the rotating
field and the direction of the rotation.
• Close the ventilation valve of the pressure maintenance pump.
• At devices with 2 pressure maintenance pumps (system
Duo and Maxi) repeat the above steps for the second
pump (pump 1 = left side, pump 2 = right side).
INFORMATION
Shut off all expansion vessels except the first vessel
previously to ¬
Detail A
SW9
Figure 4:
ventilation valve at the pump
Detail A
A
B
Figure 6:
checking the direction of rotation of the pump motor
Summary of Contents for PHP A-4
Page 8: ...4 Wiring diagrams PHP A 4 6 8 9 Instruction Manual Wiring diagrams 08 4 1...
Page 9: ...PHP A 4 6 8 9 Instruction Manual Wiring diagrams 09...
Page 10: ...PHP A 4 6 8 9 Instruction Manual Wiring diagrams 10...
Page 23: ...PHP A 4 6 8 9 Instruction Manual Appendix 23 Suction pipe overflow pipe...
