ITT A 402 Series, Инструкция по установке и эксплуатации

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8. Overview of malfunctions
The supply voltage must be switched off on all poles
before the cover for the terminal box is removed
and the pump disassembled.
Malfunction Cause Remedy
Pump not running Pump blocked Deblock
See section 6.5
No supply voltage Check switches and fuses
Check voltage at pump
Supply voltage too low Check supply voltage
Electronics defective Exchange electronics
Short circuit Motor incorrectly connected Connect correctly
when pump is switched on
Motor coil defective Exchange motor coil
Pump makes noise Air in pump Exchange motor coil
De-aerate system and pump,
See section 6.3
Cavitation Increase system pressure/
reduce temperature
Pump too great Lower electric stage/
adjust turning knob
select lower pump
Heating elements are not hot Pump too weak Switch on power limitation,
see point 5.3 SWITCH «1»
Air in pump De-aerate system and pump,
See section 6.3
Subject to change without notice
Before performing maintenance on the pump,
make sure that the pump is taken out of operation,
disconnect all poles from the power grid, and secure
from switching on again.
Only have trained staff do this work.
Mind the operating instructions.
Only perform this work when the system is at
standstill.
Take the pump off power.
Switch off the fuse and put on warning signs.
The media in the system may scald you.
The hot surfaces may scald you.
7. Maintenance, servicing
english 61
ssage
function
A_AD 16.05.2007 8:22 Uhr Seite 61