Emerson Vilter VilTech, Operation And Service Manual

Page: 63 / 174

63
TERM DEFINITION RANGE
ACTIVE GROUP There are four possible suction pressure control
groups, each with its own pressure parameters.
This field is used to manually select the active
setpoint group.
S1 -S4
High Suction Pressure Setpoints
The
H
IGH
S
UCTION
P
RESSURE
alarm and failure setpoints are not scheduled and are active
regardless of which group is in control.This screen also has the High Suction Limit & Unloading
for each step of CapacityControl
The following table lists the data entry fields for the High Suction Pressure Set-points screen
TERM DEFINITION RANGE
HIGH FAILURE The compressor is failed (stopped) when this 29.9 INHG
value is exceeded. -185 PSIG
HIGH ALARM The Viltech reports an alarm to the operator when 29.9 INHG
this value is exceeded. -185 PSIG
Suction Pressure Active Group Control Definitions
High Suction Pressure Setpoints Screen
High Suction Pressure Data Definitions