Westric SW Series, Installation, Operation And Maintenance Manual

Page: 19 / 20

76-5023-05 Page 19 of 20

Built-in fixed timers
Timer function Time
Delay in compressors start due to power failure 3 min
Compressor restart delay due to temperature change, set point, etc. 3 min
Phase shifted between compressors 5 sec
Return to the temperature display from an inactive display 1 min
Disabling the input of the access code due to repeated erroneous entry (3 times) 1 min

Alarm Identification
Message on the Display Identification Action
ALT
High Temperature Alarm
The display shows ALT and the room
temperature alternately.
The sequencer beeps
NORMAL LED goes out
The failure dry contact closes
STE
Temperature Sensor Failure Alarm
The display flashes showing STE
The sequencer beeps
NORMAL LED goes out
All unit control outputs opens
The failure dry contact closes
BTE
Power Supply Failure Alarm
(Low voltage)
The display flashes showing BTE
The sequencer beeps
NORMAL LED goes out
All unit control outputs opens
The failure dry contact closes
FE1,FE2
Unit Failure stop alarm (Digital
input)
The display flashes showing FE1,
FE2 (unit 1 or 2).
The sequencer beeps
NORMAL LED goes out
All unit control outputs opens
The failure dry contact closes
FF
Emergency Stop Alarm
(Fire, phase failure, etc.)
The display flashes showing FF
The sequencer beeps
NORMAL LED goes out
All unit control outputs opens
The failure dry contact closes