moviBOOST VPt / CL
Ensure that the motor’s cooling-air inlet and outlet openings
remain unobstructed.
Open / loosen the vent plugs on the pumps (for vent plugs refer
to the annexed pump operating instructions).
Slowly open the inlet-side shut-off element and prime the system
until the fluid escapes through all vent holes. Close and slightly
tighten the pump vent plugs.
Switch on the master switch and start up one pump after the
other via the corresponding motor protection switch, making sure
that the motor runs in the correct direction of rotation as indicated
by the arrow on the motor.
Prior to starting up individual pumps, open the discharge-side
shut-off element.
When the pumps are running, loosen the vent plugs again to let
any remaining air escape. Then retighten the vent plugs carefully.
Check the pump for smooth running and close the discharge-
side shut-off element for a short period in order to verify whether
the pump reaches the shut-off head.
Having checked each pump as described above, all motor
protection switches may be actuated and the unit set to automatic
mode.
On units with manual-0-automatic switch (supplementary
equipment) set all pumps to automatic mode.
Minor leakage of the mechanical seals during start-up is normal
and will cease after a short period of operation.
If the master switch was turned off at any time
during the above procedure, the system will not
begin operation until after the pre-set delay period.
7.3
Checking the direction of rotation
For test operation each pump must be started up individually to
check the direction of rotation. If a pump is found to be running in
the wrong direction, switch two phases on the motor terminal
board.
7.4
Functional description / Automatic mode
After start-up, pressure boosting units in standard design will
run in automatic mode. For units with manual-0-automatic switch,
set all pumps to automatic mode.
Each pressure boosting unit has been factory-checked and set
to the required operating data.
The factory settings may only be altered by authorized, duly
qualified staff.
The PBU comprises 2 to 6 pump units (including stand-by pump).
The variable-speed pump ensures a constant supply pressure.
The other pumps are started up in parallel or stopped by the
controller depending on the requirements, i.e. the individual pumps
run only in line with the actual demand.
The stand-by pump ensures uninterrupted operation of the
system, if one pump does not function properly or breaks down.
In the case of a pump failure, the next free pump is started up at
once and the fault is reported.
7.5
Starting the unit
Switch on the master switch to supply the unit with power. The
‘No Alarm’ message on the control panel indicates the unit’s
readiness for operation.
7.5.1 Function of the control panel
The control panel comprises a back-lit display, function and navi-
gation keys and an access point for the service interface.
The display shows important information for operating
moviBOOST VPt/CL HVAC. Data can be displayed in plain
text and parameters can be set.
The controller is provided with 16 x 4 lines alpha numeric dot
matrix display & keys.
7
Display settings
(plain text)
Keys for inputting
parameter value &
navigation
Summary of Contents for moviBOOST CL
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