Klimor HMI Compact - Page 59

57
Alarms
Alarm
type
System response, action / Alarms list
A_Exh
FC
Blocking
Air supply fan operation inspection using the inverter
alarm contact or EC motor controller:
Normal condition – no alarm immediately after starting the
system, alarm contact is shorted, 24VAC signal at digital input
Alarm condition – alarm immediately after starting the sys-
tem, alarm contact is open, no 24VAC signal at digital input
Response to the alarm condition: the system is stopped, check
the inverter and its connection to the controller and the fan,
nd out the problem source, once the problem is eliminated
conrm the alarm and start the system.
Digital input Din10
A_Sup
Filter2
Fading
The air supply lter contamination level inspection
using the pressure gauge:
Normal condition – permissible contamination level, pressure
dierence downstream and upstream the lter is lower than
the one set on the pressure gauge, no 24VAC signal at digital
input
Alarm condition – unacceptable contamination level, pressure
dierence downstream and upstream the lter is higher than
the one set on the pressure gauge, 24VAC signal at digital input
Response to the alarm condition: the system operates, the con-
taminated lter alarm is displayed, if such alarm occurs, install
the new lter immediately, AHU operation with contaminated
lter can reduce the AHU eciency and can lead to the lter
damage which in turn can cause contamination and damage
of heat/cool exchangers (that would be a customer’s fault).
Digital input Din11
(Settings/Service menu/Function 1S2H set to Fine Filter)
A_
StopS1
Fading
Testing the status of the service disconnect:
Normal condition- no service disconnect notication, the
switch contact is shorted, there is 24VAC signal on the digital
input.
Alarm condition - there is service disconnect notication, the
switch contact is open, there is no 24VAC signal on the digital
input.
Reaction to the Alarm condition: the system is stopped with
the alarm function (heating up the heater in winter), after
removing the cause, the alarm disappears automatically and
the system returns to operation
(it is possible to switch this alarm o and use the Din12 input
as a remote stop / switch-on signal).
Digital input Din12
PT1000 Sensor input
A_Tsup Blocking
Air supply temperature sensor operation inspection:
Normal condition – no alarm, sensor connected
Alarm condition – alarm triggered, sensor disconnected or faulty
Reaction to the Alarm condition: system stopped, check the
sensor and how it is connected to the controller, determine the
cause of the error, after removing the cause, conrm the alarm
and start the system
Sensor input PT1
A_Texh Blocking
Air exhaust temperature sensor operation inspection:
Normal condition – no alarm, sensor connected
Alarm condition – alarm triggered, sensor disconnected or faulty
Reaction to the Alarm condition: system stopped, check the
sensor and how it is connected to the controller, determine the
cause of the error, after removing the cause, conrm the alarm
and start the system
Sensor input PT2
A_Tout Blocking
External temperature sensor operation inspection:
Normal condition – no alarm, sensor connected
Alarm condition – alarm triggered, sensor disconnected or faulty
Reaction to the Alarm condition: system stopped, check the
sensor and how it is connected to the controller, determine the
cause of the error, after removing the cause, conrm the alarm
and start the system
Sensor input PT3
A_Trec Blocking
Inspection of air exhaust temperature sensor operation do-
wnstream the heat recovery (if active in the service menu/
conguration/recovery sensor - Temperature):
Normal condition – no alarm, sensor connected
Alarm condition – alarm triggered, sensor disconnected or faulty
Reaction to the Alarm condition: system stopped, check the
sensor and how it is connected to the controller, determine the
cause of the error, after removing the cause, conrm the alarm
and start the system
Sensor input PT4
A_
Tmain
Blocking
Master temperature sensor operation inspection:
Normal condition – no alarm, sensor connected
Alarm condition – alarm triggered, sensor disconnected or faulty
Reaction to the Alarm condition: system stopped, check the
sensor and how it is connected to the controller, determine the
cause of the error, after removing the cause, conrm the alarm
and start the system
The input depends on the master sensor selection
Misc Alarms
A_Com
SupFC
Fading
Communication inspection of the controller and air sup-
ply fan inverter or EC motor controller:
Normal condition – no alarm, correct communication
Alarm condition – alarm triggered, incorrect communication
Response to the alarm condition: the system is stopped, check
the inverter and its connection to the controller or air supply EC
motor controller, nd out the problem source, once the problem
is eliminated the system resumes operation automatically.
A_Com
SupFC2
Fading
Communication inspection of the controller and air sup-
ply fan secondary inverter or EC motor controller 2:
Normal condition – no alarm, correct communication
Alarm condition – alarm triggered, incorrect communication
Response to the alarm condition: the system is stopped, check
the inverter and its connection to the controller or air supply EC
motor controller, nd out the problem source, once the problem
is eliminated the system resumes operation automatically.