Pump - Toshiba ESTIA RUA-CP1701H Service Manual

Monobloc Outdoor Unit
4. Clean the filter with water
5. Replace the screen filter and screw back in
15.4.3.
The following is a check list for fixed speed pump procedures:
Action
Follow Installation and Operation manual for
installation and start up
Ensure that all lines supplying the pump have
been flushed before the pump is installed
Check that all filtering / straining devices are
clear of debris and have positive inlet pressure
Measure electric insulation
Check for proper motor rotation
Measure motor currents value at duty point and
verify proper motor protection set-up
Check for proper voltage (under load, as close to
the motor as possible)
Check for leaks and ensure all fittings are
properly tightened
Bump start the pump and listen for any unusual
sounds measure vibration in correspondence of
motor shield
Check:
- water flow rate according the selection - flow
switch status and pressure
-measure pressure at zero flow
No check is to be done on variable speed pump, if VS pump doesn't operate, it is
necessary to replace the VS pump.

Pump

Water filter
Unscrew filter and
remove the screen
filter
Reference Note
IOM
Clean liquid prevent pump wearing
Low inlet pressure may cause
pump cavitation
23 ohms between phases
Wrong rotation may cause
mechanical seal damages and low
water flow.
The motor currents may be saved
Motor data label
used for predictive maintenance
The motor vibration may be saved
used for predictive maintenance
The motor vibration may be saved
used for predictive maintenance
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Service Manual