M&M RWB series User Manual

M&M R
EFRIGERATION
I
NC
. 3-37
Chapter 3: Operational Procedures
Discharge Pressure Setpoints
The Discharge Pressure Setpoints screen is used to set the discharge pressure
control parameters for high alarm, limiting, and ramp conditions
Discharge Pressure Setpoints Data Entry Screen
The following table lists the data entry fields for the Discharge Pressure Setpoints
screen.
Discharge Pressure Data Definitions
DISCHARGE PRESSURE day mm/dd/yy hh:mm:ss
SETPOINTS
HIGH FAILURE XXX.X PSIG
HIGH ALARM XXX.X PSIG
HIGH UNLOAD XXX.X PSIG
HIGH LIMITING XXX.X PSIG
RAMP UNLOAD XXX.X PSIG
RAMP LIMITING XXX.X PSIG
RAMP START DELAY XXX.X MIN
RAMP START ENABLE DISABLE
TERM DEFINITION RANGE
HIGH
FAILURE
The compressor is failed (stopped) when this value is
exceeded.
0 - 225
NH
3
0 - 275
FREON
HIGH
ALARM
The CCS reports an alarm to the operator when this value is
exceeded.
0 - 225
NH
3
0 - 275
FREON
HIGH
UNLOAD
The compressor is forced to unload when this value is
exceeded.
0 - 225
NH
3
0 - 275
FREON
HIGH
LIMITING
The compressor is not allowed to load when this value is
exceeded.
0 - 225
NH
3
0 - 275
FREON
RAMP
UNLOAD
The starting value of the forced unload parameter used dur-
ing ramp start.
0 - 225
NH
3
0 - 275
FREON
RAMP
LIMITING
The starting value of the limiting parameter used during
ramp start.
0 - 225
NH
3
0 - 275
FREON
RAMP START
DELAY
The time period after start used to ramp the forced unload
and limiting parameters from the ramp value to the normal
value.
0.1 - 60 Min
RAMP START
ENABLE
Allows Discharge Pressure Ramp start to be enabled or dis-
abled.
ENABLE/
DISABLE

M&M RWB series Specifications

General

Brand	M&M
Model	RWB series
Category	Controller
Language	English