M&M RWB series User Manual

M&M R
EFRIGERATION
I
NC
. 3-35
Chapter 3: Operational Procedures
Suction Pressure Control Data Entry Screen
The following table lists the data entry fields on the screen and a description of
their purposes.
Suction Pressure Control Data Definitions
SUCTION PRESSURE
day mm/dd/yy hh:mm:ss
CONTROL GROUPS
ACTIVE GROUP > S1
GROUP S1 GROUP S2 GROUP S3 GROUP S4
-------- -------- -------- --------
CUT-IN XX.X PSIG XX.X PSIG XX.X PSIG XX.X PSIG
CONTROL XX.X PSIG XX.X PSIG XX.X PSIG XX.X PSIG
CUT-OUT XX.X INHG XX.X INHG XX.X INHG XX.X INHG
LOW ALARM XX.X INHG XX.X INHG XX.X INHG XX.X INHG
LOW FAILURE XX.X INHG XX.X INHG XX.X INHG XX.X INHG
TERM DEFINITION RANGE
ACTIVE
GROUP
There are four possible suction pressure control groups, each with
its own pressure parameters.
S1 - S4
CUT-IN
Cut-in Setpoint. If Automatic or Auto-Remote mode is selected,
Auto Start/Stop is enabled, the compressor is on-line, and the suc-
tion pressure rises above the Cut-in Setpoint, the compressor will
start.
29.9
INHG
-
185.0
PSIG
CONTROL
Control Setpoint. In the Automatic or Auto-Remote mode of oper-
ation the compressor is loaded or unloaded as required to main-
tain the Control Setpoint.
29.9
INHG
-
185.0
PSIG
CUT-OUT
Cut-out Setpoint. If Automatic or Auto-Remote mode is selected,
Auto Start/Stop is enabled, the compressor is on-line, and the suc-
tion pressure falls below the Cut-out Setpoint, the compressor will
stop.
29.9 INHG
-
185.0
PSIG
LOW ALARM
The suction pressure value at which the CCS should report a Low
Suction Pressure alarm to the operator (for all modes except
Sequenced).
29.9
INHG
-
185.0
PSIG
LOW FAILURE
The suction pressure value at which the CCS should fail (stop) the
compressor and report a failure to the operator (for all modes
except Sequenced).
29.9
INHG
-
185.0
PSIG

M&M RWB series Specifications

General

Brand	M&M
Model	RWB series
Category	Controller
Language	English