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Emerson MultiFlex Series User Manual

Emerson MultiFlex Series
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4 • MultiFlex I/O Board Operator’s Guide 026-1704 Rev 6 06-APR-10
denser fan control. The MultiFlex CUB-TD is a
scaled-down version of the CUB-II that controls
condenser fans using a temperature differential
strategy.
The MultiFlex CUB uses the same general
hardware configuration as a MultiFlex 168AO.
It is equipped with a processor and extra mem-
ory to allow it to control compressors, condens-
ers, refrigeration, and defrost for a single
condensing unit using on-board I/O and control
algorithms.
The MultiFlex CUB has its own installation
and operation manual, P/N 026-1705.
1.3.4. The MultiFlex PAK
The PAK is a distributed pack (rack) control-
ler that controls compressors and condenser
fans. The PAK can control up to 8 compressor-
groups containing up to 16 compressors. The-
compressor control strategy is either Fixed Steps
with up to 20 fixed combinations of compressor
groups, or an alternate Cyclic strategy that dis-
tributes compressor activations, with setpoint/
deadband using ON and OFF delays.
The PAK can also control up to 4 condenser-
fan groups containing up to 8 total condenser
fans. The PAK condenser control strategy is
sequential TD control with setpoint/deadband
using ON and OFF delays.
The MultiFlex PAK has its own installation
and operation manual, P/N 026-1712.

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Emerson MultiFlex Series Specifications

General IconGeneral
BrandEmerson
ModelMultiFlex Series
CategoryI/O Systems
LanguageEnglish

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