Trane CVHF Information Manual

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Information Manual 79
Rfgt Monitor Bench Flow Loss IFW Rfgt Mon All Air flow loss to the Refrigerant Monitor optical
bench.
a. IFW to the chiller, MMR/MAR to the
Refrigerant Monitor.
See Refrigerant
Monitor IOM
Manual
Rfgt Monitor Scanner Flow Loss IFW Rfgt Mon All Air flow loss to the Refrigerant Monitor scanner.
a. IFW to the chiller, MMR/MAR to the
Refrigerant Monitor.
See Refrigerant
Monitor IOM
Manual
Rfgt Monitor Out Of Temp
Range
IFW Rfgt Mon All Out of temperature range for measuring
refrigerant concentration.
Check Bench
Heater, Wiring,
Connections
Rfgt Monitor Refrig Level Too
Low
IFW Rfgt Mon All The Refrigerant Monitor read less than or equal
to -5 ppm refrigerant concentration.
Recalibrate
Refrigerant
Monitor
Rfgt Monitor Fault IFW Rfgt Mon All A undefined diagnostic detected by the
Refrigerant Monitor.
a. IFW to the chiller, MMR to the Refrigerant
Monitor.
See Refrigerant
Monitor IOM
Manual.
Rfgt Monitor Calibration Error
(This diagnostic is currently
ignored by UCP2)
IFW Rfgt Mon All The Refrigerant Monitor calibration failed.
a. IFW to the chiller, IFWMMR to the Refrigerant
Monitor.
See Refrigerant
Monitor IOM
Manual
Rfgt Monitor Aux Input Error IFW Rfgt Mon All The Refrigerant Monitor auxiliary input is outside
the 4-20 mA range.
Check Signal At
Input
Rfgt Monitor External Reset IFW Rfgt Mon All The Refrigerant Monitor external reset switch
(Normally Closed) is stuck in the “reset” state or
the switch/jumper is missing.
See Refrigerant
Monitor IOM
Manual.
Rfgt Monitor Level 3 Rfgt
Refrigerant Alarm
IFW Rfgt Mon All The Refrigerant Monitor has read a refrigerant
concentration greater or equal to the level 3
setpoint.
N/A
Rfgt Monitor Auxiliary Alarm IFW Rfgt Mon All The Refrigerant Monitor auxiliary input signal
indicates an alarm condition.
N/A
Rfgt Monitor Level 2 Rfgt
Refrigerant Alarm
IFW Rfgt Mon All The Refrigerant Monitor has read a refrigerant
concentration greater or equal to the level 2
setpoint.
N/A
Rfgt Monitor Level 1 Rfgt
Refrigerant Alarm
IFW Rfgt Mon All The Refrigerant Monitor has read a refrigerant
concentration greater or equal to the level 1
setpoint.
N/A
Safety String Input Opened*** MMR Scorpio All Safety string input opened on the Scorpio
module
N/A
Severe Phase Unbalance MMR Starter All
Running
Modes
a. A 30% Phase Unbalance diagnostic has been
detected. Items to check are the Current
Transformer Part Numbers (they should all
match), The Current Transformer resistances,
line voltage phase balance, all power wiring
connections, the contactor pole faces, and the
motor. If all these are OK, replace the Starter
module.
Check Main
Power Supply &
Wiring
Solid State Starter Fault Rly
Open
MMR Starter All Start
and Run
Mode
The SSS fault relay is open. See Solid State
Starter Service
Bulletin, check
for an open wire.
Soln Pump Winding Thermostat
Open
MMR Circuit All a. The motor winding temperature thermostat
opened; nominally 230°F (110 °C).
b. The motor temp. thermostat or wiring is open.
c. Time to trip from input open to Solution Pump
shutdown shall be 0.5 to 2.0 seconds.
Check Machine
Operation
DIAGNOSTIC DESCRIPTION
Diag
Type
Module
that
Called
Diag.
Diag.
Active
Modes
CAUSE Help Message

Trane CVHF Specifications

General

Brand	Trane
Model	CVHF
Category	Chiller
Language	English