ITT Hydrovar Operating Instructions

Operating Instruction
16
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Other failures and possible causes
Failure Possible cause Solution
Oscillation of the
pressure
Wrong pre-charge pressure in the
pressure tank
Adjust pre-charge pressure
according to the required
pressure or the start pressure
when active
Wrong parameter setting Optimize control parameters
(contact customer service)
Dirty or blocked sensor Clean the internal sensor piping
and connection
(contact customer service)
Pump does not stop Wrong pre-charge pressure in the
pressure tank
Adjust pre-charge pressure
according to the required
pressure or the start pressure
when active
Check valve is leaky or mechanically
blocked
Clean or change the check valve
Wrong parameter setting Increase the control window
setting
(contact customer service)
Air in the suction pipe or in the pump Check the suction pipe, and
ventilate the whole system
Flexible or too long suction line Larger pressure tank necessary
7 Maintenance and Notes
The HYDROVAR- Watercooled does not require any special maintenance!
For further information, please contact your distributor!

ITT Hydrovar Specifications

General

Brand	ITT
Model	Hydrovar
Category	Inverter
Language	English