Product Manual, Issue 8
CMS100
www.nexo.com
Page 38
4.6
Refrigeration system failure (rSF) alarms
The limp home aspect of this alarm ensures that the cooler continues to operate with limited disruption to
the end user. The refrigeration system will operate - cooling the products - while a service engineer visit is
scheduled.
The table below describes how the CMS100 Nexo controls the cooler during this time and what the end
user will see:
Audio alarm
Display
Audible alarm sounds for ten seconds every compressor cycle
(compressor switches ON or OFF) - if the buzzer is enabled.
In Ready mode
In Saving mode
While the controller displays the above, the controller is managing the compressor and the fans:
`
The compressor cycles fifteen (15) minutes off, then five (5) minutes on.
`
The fan switches on with the compressor on cycle, then cycles when the compressor is in the
off cycle as set by the FCO (fan cycle on) and FCF (fan cycle off) parameters.
The fault clears and normal operation resumes when one of the following occurs:
`
The appliance sensor temperature reaches SP (set point)
`
The power is cycled to the controller - restarting the Ct (refrigeration system failure) timer
once the compressor switches on.
`
The Down button is pressed.
