Trane CVRC-M-1D, Manual

Page: 101 / 126

CVRC-M-1D 101
Diagnostics Tables
External Current Limit Setpoint IFW-
AR All a. Not “Enabled”: No diagnostics.
b. “Enabled”: Out-Of-Range Low or Hi, set diagnostic, default
CLS to next level of priority (e.g. Front Panel SetPoint. This IFW
diagnostic, default CLS to next level of priority (e.g. Front Panel
SetPoint. This IFW diagnostic will automatically reset if the input
returns to the normal range. Check Signal At Input
HGBP Valve Closure Overdue IFW Whenever
going for a
HGBP
controlled
mode to an
uncontrolled
mode. e.g.
when
exiting
HGBP, On
Reset, etc. a. The HGBP Valve was commanded to close and did not close
in the three minutes allowed for closure. Check Clsd
End-Switches, Valves,
Wiring
Heat Sink Temp Sensor IFW All Open or Short and Solid State Starter Installed. Check Sensor, Wiring
and Connections
High Bearing #1 Temp MMR All starting
and running
modes a. The bearing temperature at sensor #1 exceeded 180 + or - 5F
(82.2 C) for 0.5 -2 seconds (Note: BT, WT, and DT may be
“instantaneous trip” but consistent with the analog input filtering
function.), and
b. This function is enabled at the Clear Language Display. Check Oil System
High Bearing #2 Temp MMR All starting
and running
modes a. The bearing temperature at sensor #2 exceeded 180 + or -5 F
(82.2 C) for 0.5 - 2 seconds. (Note: BT, WT, and DT may be
“instantaneous trip” but consistent with the analog input filtering
function.), and
b. This function is enabled at the Clear Language Display. Check Oil System
High Cprsr Discharge Temp. MAR All a. The discharge temp. exceeded the trip value; 200 F + - 5 F.
The Discharge Temp Cutout is adjustable at the Clear Language
Display.
b. Time to trip from trip value exceeded shall be 0.5 to 2.0
second. (Note: BT, WT, and DT may be instantaneous trip" but
consistent with the analog input filtering function.)
c. The diag. shall reset automatically 50 F below the trippoint. See Troubleshooting
Service Bulletin
CVHE-SB-32
High Motor Temp Position #1 MMR Any Start
and Run
Mode The Motor winding temp. at Sensor #1 exceeded 265 F + or - 15
F for 0.5 - 2 seconds. (Note: BT, WT, and DT may be
“instantaneous trip” but consistent with the analog input filtering
function.) See Troubleshooting
Service Bulletin
CVHE-SB-32
High Motor Temp Position #2 MMR Any Start
and Run
Mode The Motor winding temp. at Sensor #2 exceeded 265 F + or - 15
F for 0.5 - 2 seconds. (Note: BT, WT, and DT may be
“instantaneous trip” but consistent with the analog input filtering
function.) See Troubleshooting
Service Bulletin
CVHE-SB-32
High Motor Temp Position #3 MMR Any Start
and Run
Mode The Motor winding temp. at Sensor #3 exceeded 265 F + or - 15
F for 0.5 - 2 seconds. (Note: BT, WT, and DT may be
“instantaneous trip” but consistent with the analog input filtering
function.) See Troubleshooting
Service Bulletin
CVHE-SB-32
Diagnostic Description Diag
Type
Diag. Active
Modes
(Non-Active
Modes)
Cause Help Message