Using A Motor Driven Generator Supply; Summary - Fisher & Paykel RB90S64MKIW Service Manual

Do Fisher and Paykel recommend a brand and model of inverter to use? - No.
Due to the large number of brands and models, it is impractical, not to mention inappropriate, for us to
attempt to approve or disapprove the use of any particular inverter. We simply recommend that everything
possible is done to ensure any inverter used complies with the preceding technical recommendations.
Do Fisher and Paykel provide a guarantee for CoolDrawer electronic modules when run from an inverter
supply? - No.
Even though the design of inverters has improved immensely over the last few years, and the incidence of
reported problems is very low, we do not know the "quirks" of individual inverters. Should an inverter output
go outside our voltage recommendations then it may damage the CoolDrawer Electronics and this,
obviously, is beyond our control.
4.3

Using A Motor Driven Generator Supply

Motor driven generators typically generate a 230V rms. sinusoidal voltage output. Whilst the voltage shape
is better defined than an inverter, a generator can still develop high voltage pulses due to such things as:
• Noise of brushes.
• Surges due to other equipment coming on/off line.
• Surges due to start up - power down.
As such, the same technical recommendations as have been outlined in the preceding inverter supply
section are an excellent guideline if planning to use a generator supply. Please read these technical
recommendations thoroughly.
4.4

Summary

As has been already mentioned, there are many successful installations where customers are using
inverters or generators to power their refrigerators.
If our technical recommendations for inverters/generators are adhered to, we are not aware of any reasons
why operational or reliability problems should be experienced.
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