Trane CCUN 205-211 User Manual page 28

Evaporator Water Chiller
Flow Lost Pump 1
(or Pump 2)
Evaporator Water Chiller
Flow Overdue
Pump 1 (or
Pump 2)
Fault Detected: Chiller
Evaporator Water
Pump 1 (or
Pump 2)
Condenser Water Chiller
Flow Lost Pump 1
(or Pump 2)
Condenser Water Chiller
Flow Overdue
Pump 1 (or
Pump 2)
Fault Detected: Chiller
Condenser Water
Pump 1 (or
Pump 2)
Fan Fault Circuit
High Condensing Chiller
Pressure Pump
Add
28
Diagnostics
Warning and NonLatch
Special Action
Warning and NonLatch
Special Action
Warning and NonLatch
Special Action
Warning and NonLatch
Special Action
Warning and NonLatch
Special Action
Warning and NonLatch
Special Action
Warning NonLatch
Warning Latch
Evap pump After flow had been proven the chilled water flow input
commanded on was open for more than 4 continuous seconds. The
evaporator pump control will switch control to the
redundant pump. If redundant pump is not available,
diagnostic will clear when flow is established.
Estab. Evap. Water Evaporator water flow was not proven within a user
Flow on going from adjustable time of the evaporator water pump relay being
STOP to AUTO. energized. Diagnostic is reset with return of evaporator
water flow.
All Detection of a pump fault will cause pump control to
switch to the redundant pump.
Start and All Run After flow had been proven the condenser water flow
Modes input was open for more than 4 continuous seconds. This
diagnostic is automatically cleared once all circuits are de-
energized.
Estab Cond Water Condenser water flow was not proven within a user
Flow adjustable time of the condenser water pump relay being
energized.
All Detection of a pump fault will cause pump control to
switch to the redundant pump.
All The fan fault input was open for more than 5 seconds.
Running When running in parallel pump control, with one pump
on, a high condensing pressure will force add the second
pump. It will latch on to prevent pump cycling.
Remote
Remote
Remote
Remote
Remote
Remote
Local
Remote
CG-SVU02B-E4