Trane RTHD

150 RTHD-SVX01D-EN
Diagnostics
F7 Condenser Water
Flow Lost
Immediate NonLatch The condenser water flow proof input was open for
more than 6 contiguous seconds after flow had been
proven. This diagnostic is automatically cleared once
the compressor is stopped by a fixed time out of 7
sec. The Cond Pump shall be commanded off but
the Evap pump command will not be effected.
Remote
DC Condenser Water
Flow Overdue
Normal NonLatch Condenser water flow was not proven within 20
minutes of the condenser pump relay being
energized. The Cond Pump shall be commanded
off. Diagnostic is reset with return of flow (although
only possible with external control of pump)
Remote
EC or EC Current Overload
TripMotor Current
Overload
Immediate Latch Compressor current exceeded overload time vs. trip
characteristic. For A/C products Must trip = 140%
RLA, Must hold=125%, nominal trip 132.5% in 30
seconds
Local
FD Emergency Stop Immediate Latch a. EMERGENCY STOP input is open. An external
interlock has tripped. Time to trip from input
opening to unit stop shall be 0.1 to 1.0 seconds.
Local
8E Evaporator
Entering Water
Temperature
Sensor
Info Latch Bad Sensor or LLID Normal operation unless CHW
Reset is enabled. If CHW Reset is enabled and
either Return or Constant Return Chilled Water
Reset is selected, its effect will be removed but
slew rates on the change will be limited per the
Chilled Water Reset spec.
Remote
AB Evaporator
Leaving Water
Temperature
Sensor
Normal Latch Bad Sensor or LLID Remote
27D Evaporator Liquid
Level Sensor
Normal Latch Bad Sensor or LLID Remote
5BA Evaporator Refrig-
erant Pressure
Transducer
Normal Latch Bad Sensor or LLID Remote
ED Evaporator Water
Flow Lost
Immediate NonLatch The chilled water flow proof input was open for
more than 6-10 contiguous seconds after flow had
been proven. The pump command status will not be
effected. 6-10 seconds of contiguous flow shall
clear this diagnostic. Even though the pump may be
commanded to run in the STOP modes (pump off
delay time), this diagnostic shall not be called out in
the STOP modes.
Remote
384 Evaporator Water
Flow Overdue
Normal NonLatch Evaporator water flow was not proven within 20
minutes of the Chilled water pump relay being
energized. The Evap pump command status will not
be effected.
Remote
Table 33 Diagnostic List
Hex
Code
Diagnostic
Name and
Source Severity Persistence Criteria
Reset
Level