![background image](http://html1.mh-extra.com/html/daikin/ewad-tz-b/ewad-tz-b_operation-manual_4001229054.webp)
Air and Water cooled inverter chillers and heat pump
D-EOMZC00105-17EN
Operation Manual
54/84
EWAD TZ - EWAD TZ B -EWWD VZ
Air and Water cooled inverter chillers and
heat pump
6.1 Unit Alerts
6.1.1
Bad Current Limit Input
This alarm is generated when the Flexible Current Limit option has been enabled and the input to the controller
is out of the admitted range.
Symptom
Cause
Solution
Unit status is Run.
Bell icon is moving on controller’s display.
Flexible Current Limit function cannot be
used.
String in the alarm list:
BadCurrentLimitInput
String in the alarm log:
BadCurrentLimitInput
String in the alarm snapshot
BadCurrentLimitInput
Flexible current limit input out of range.
For this warning out of range is considered
to be a signal less than 3mA or more than
21mA.
Check for values of input signal to the unit
controller. It has to be in the allowed mA
range.
Check for electrical shielding of wirings.
Check for right value of the unit’s controller
output in case input signal is into allowed
range.
Reset
Notes
Local HMI
Network
Auto
Automatically clears when the signal
returns in the allowed range.
6.1.2
Bad Demand Limit Input
This alarm is generated when the Demand Limit option has been enabled and the input to the controller is out
of the admitted range.
Symptom
Cause
Solution
Unit status is Run.
Bell icon is moving on controller’s display.
Demand Limit function cannot be used.
String in the alarm list:
BadDemandLimitInput
String in the alarm log:
BadDemandLimitInput
String in the alarm snapshot
BadDemandLimitInput
Demand
limit
input
out
of
range
For this warning out of range is considered
to be a signal less than 3mA or more than
21mA.
Check for values of input signal to the unit
controller. It has to be in the allowed mA
range;
Check for electrical shielding of wirings.
Check for right value of the unit’s
controller output in case input signal is
into allowed range.
Reset
Notes
Local HMI
Network
Auto
Automatically clears when the signal
returns in the allowed range.
6.1.3
Bad Leaving Water Temperature Reset Input
This alarm is generated when the Setpoint Reset option has been enabled and the input to the controller is out
of the admitted range.
Symptom
Cause
Solution
Unit status is Run.
Bell icon is moving on controller’s display.
LWT Reset function cannot be used.
String in the alarm list:
BadSetPtOverrideInput
String in the alarm log:
BadSetPtOverrideInput
String in the alarm snapshot
BadSetPtOverrideInput
LWT reset input signal is out of range.
For this warning out of range is considered
to be a signal less than 3mA or more than
21mA.
Check for values of input signal to the
unit controller. It has to be in the allowed
mA range.
Check for electrical shielding of wirings.
Check for right value of the unit’s
controller output in case input signal is
into allowed range.
Reset
Notes
Local HMI
Network
Auto
Automatically clears when the signal
returns in the allowed range.