Diagnostics

High Evaporator Water

Chiller

Immediate

NonLatch

All

The evaporator leaving water temperature is above 46°C. This

Local

Temperature

 

 

 

 

diagnostic shall clear once the evaporator leaving water

 

 

 

 

 

 

temperature falls below 43.3°C. This diagnostic protects the

 

 

 

 

 

 

rupture disk. The evaporator water pump shall not run when

 

 

 

 

 

 

this diagnostic is active.

 

 

 

 

 

 

 

 

High Pressure Cutout

Circuit

Immediate

Latch

All

The high pressure cutout switch was open for more than one

Local

 

 

 

 

 

second.

 

 

 

 

 

 

 

 

Emergency Stop

Chiller

Immediate

Latch

All

Emergency Stop input is open.

Local

 

 

 

 

 

 

 

Outdoor Air Temp Sensor

Chiller

Warning

Latch

All

Bad Sensor or LLID. If configured as an air-cooled this

Remote

 

 

and Special

 

 

diagnostic shall use a minimum low refrigerant temperature

 

 

 

Action

 

 

ignore time of 30 seconds.

 

 

 

 

 

 

 

 

MP: Non-Volatile Memory

None

Warning

Latch

All

MP has determined there was an error in a sector of the Non-

Remote

Reformatted

 

 

 

 

Volatile memory and it was reformatted. Check settings.

 

 

 

 

 

 

 

 

Check Clock

Platform

Warning

Latch

All

The real time clock had detected loss of its oscillator at some

Remote

 

 

 

 

 

time in the past. Check / replace battery? This diagnostic can

 

 

 

 

 

 

be effectively cleared only by writing a new value to the chillers

 

 

 

 

 

 

time clock using the TechView or DynaViews set chiller time

 

 

 

 

 

 

functions.

 

 

 

 

 

 

 

 

MP: Could not Store Starts

Platform

Warning

Latch

All

MP has determined there was an error with the previous

Remote

and Hours

 

 

 

 

power down store. Starts and Hours may have been lost for

 

 

 

 

 

 

the last 24 hours.

 

 

 

 

 

 

 

 

MP: Non-Volatile Block Test

Platform

Warning

Latch

All

MP has determined there was an error with a block in the Non-

 

Error

 

 

 

 

Volatile memory. Check settings.

 

 

 

 

 

 

 

 

Starts/Hours Modified

Cprsr

Warning

NonLatch

All

A counter for compressor starts or hours has been modified by

NA

 

 

 

 

 

TechView. This diagnostic is immediately and automatically

 

 

 

 

 

 

cleared and thus can only be seen in the historic diagnostic

 

 

 

 

 

 

list.

 

 

 

 

 

 

 

 

CG-SVU02B-E4

27

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Image 27
Trane CGWN 205-211 manual High Evaporator Water, High Pressure Cutout, Emergency Stop, Outdoor Air Temp Sensor, Reformatted