Trane CVHE Information Manual page 77

Diagnostics Menu
DIAGNOSTIC DESCRIPTION
High Oil Temp
High Pressure Cutout Tripped
High Restart Inhibit Timer
Warning
High Vacuum Lockout
IGV BPI Not Found During
Search
IGV BPI Found Low During
Search
IGV BPI Shorted
IGV Electrical Drive Circuit
Open
Incorrect Chiller Software
Installed
Incorrect Stepper Software
Installed
Inlet Guide Vane Closure
Overdue
I/O Mod: Loss of Comm with
Chiller
Invalid Starter Selection
72
Diag Module Diag.
Type that Active
Called Modes
Diag.
MMR Circuit All
starting
and
running
Modes
MMR Circuit All
IFW Starter All
MMR Circuit Pre-Start
IFW Stepper All
IFW Stepper All
IFW Stepper Pre-Start
MMR Stepper On
Demand
and
Pre-Start
MMR Chiller All
MMR Stepper All
IFW I/O All Non-
running
modes,
Starting,
Pre-Stop
(IGV
manual
modes)
IFW I/O All
MMR Starter All Modes The Cld has been setup for an AFD starter type,
CAUSE
UCP2 shall provide a fixed High Oil Temperature
Cutout of 180 °F (82.2°C). If the oil temperature
violates the cutout by 120 degree F seconds
(66.6 degree C seconds) an MMR diagnostic
shall be generated.
A high pressure cutout was detected. See the
trip points for the various products under the
HPC switch description of this specification.
The Restart Inhibit timer has reached a
maximum threshold for the host chiller. For CTV
chillers this is 45 minutes. This indicates
excessive chiller cycling, steps should be taken
to correct this.
The Oil Tank Pressure transducer shall be used
to sense for very low pressures in all Non-
running cprsr modes.
The Inlet Guide Vane Actuator Binary Position
Indicator was not found over the entire stroke of
the IGV during the BPI search.
The Inlet Guide Vane Actuator Binary Position
Indicator was found too low in the stroke of the
IGV during the BPI search.
At what is believed to be a closed position, the
IGV BPI was found to be shorted.
Run the IGV Actuator electrical drive circuit test
both on demand from the human interface and
just before the chiller starts.
The incorrect Eprom was loaded into this
module. This diagnostic is detected when a
factory test computer sets the unit type to
something other than what the Eprom software
was intended for.
The incorrect Eprom was loaded into this
module. This diagnostic is detected when a
factory test computer sets the unit type to
something other than what the Eprom software
was intended for.
a. The inlet guide vanes were commanded to
close and did not close in the three minutes
allowed for closure.
The I/O module lost communications with the
Chiller module for 15 contiguous seconds.
however the starter module is not AFD
compatible.
(Note: This feature is not supported by
hardware.) (Special Note not for Publishing; See
Starter Module Design Specification for
requirements to enable AFD operation.)
Help Message
Check Oil
System
Check
Condenser
Water Temp.
Check for
Excessive
Chiller Cycling
See
Troubleshooting
Service Bulletin
See
Troubleshooting
Service Bulletin
Check Stepper
Module, Wiring,
& Motor
Check Sensor,
Wiring, and
Connections
See
Troubleshooting
Service Bulletin
(No message is
required.)
(No message is
required.)
Check Clsd End-
Switches,
Vanes, Wiring
Check IPC
Wiring/
Connections
Call Local Trane
Service Agency
CVHE-CLD-1A