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8.2.3.2.
Refrigerant Select
Refrigernt:R401B
Case Type : 00
Oil Protect: NO
Comp Prf: YES
Refrigerant Type
The Refrigerant field is where the type of
refrigerant being used in the condensing unit
system must be specified. The E2 or Einstein
uses the Refrigerant field to automatically cal-
culate saturation suction temperature.
Case Type
The E2 or Einstein uses the Case Type field
to assign default setpoints for your circuit based
on the case type. There are 64 case types to
choose from, each with its own default tempera-
ture setpoint, defrost type, and defrost times. A
complete list of case types is provided in Appen-
dix B: Case Type Defaults on page 68.
Entering the case type number with the HHT
is for reference purposes only. Setting the case
type number will not set defaults for case set-
point or defrost. E2 or Einstein will override any
settings made with the HHT.
Oil Protection
The Oil Protect field specifies whether an
oil failure sensing device is present for the con-
densing unit. If an oil pressure transducer or dig-
ital input is available, set this field to YES. If oil
pressure checking will not be used for this CUB,
set this field to NO.
Compressor Proof
The Comp Prf field specifies whether a
compressor proof checking device is present for
the condensing unit. If a compressor proof input
is available, set this field to YES. If compressor
proof checking will not be used for this CUB, set
this field to NO.
Altering CUB Configuration Using The Hand-Held Terminal
8.2.3.3.
Phase
PhaseEnable: NO
Door Switch: YES
Wash Switch: NO
Pumpdwn: Disable
Phase Enable
The PhaseEnable field specifies whether a
phase loss detection device is present for the
condensing unit. If a phase loss input is present,
set this field to YES. If not, set this field to NO.
Door Switch
The Door Switch field specifies whether a
door switch is present on the condensing unit’s
case circuit. If a door switch input is available,
set this field to YES.
Wash Switch
The Wash Switch field specifies whether
this condensing unit has a clean switch to toggle
the case circuit in and out of Wash mode. If a
clean switch input is available, set this field to
YES.
Pump Down
The Pumpdwn field enables or disables the
Pump Down Delay that occurs in between
refrigeration and defrost. If set to YES, the CUB
will leave the defrost output OFF and leave the
compressor ON until the suction pressure is
below the Minimum Suction Pressure setpoint.
If set to YES, there will be no delay between the
end of refrigeration and the activation of the
defrost output.
8.2.3.4.
Temp EU
EngUnit: English
TempUnits: Deg C
Zone: 1
Engineering Units
The EngUnit field determines whether engi-
neering units for pressure values will be dis-
played using English units (PSI, or pounds per
square inch) or metric units (KPA, or kilopas-
cals).
The MultiFlex CUB Hand-Held Interface • 47
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