Air Handling seq.- user manual
DKRCC.PS.RI.A1.02 / 520H4358 - Air Handling Seq. user manual - V 2.2
Produced by Danfoss Electronics spa Graphic Department, 10-2009
57
ALARMS TABLE
Code Description Source Type of
reset
Semi
automatic
period
(min)
Delay
at
start-
up
Operating
delay
Active
with
unit
OFF
Alarm
relay
Warning
relay
Buzzer Actuators
OFF
A03 Supply fan
safety switch
Digital input
“SupFan SafeSW”
-1
(automatic)
0 0 0 NO YES YES YES Supply fan
A04 Return fan
alarm
Digital input
“RetFan Alarm
-1
(automatic)
0 0 0 NO YES YES YES Return fan
A05 Mixing damper
locked
Digital input
“MixDamp
Closed” and
output “Mixing
Damper” active
-1
(automatic)
0 0 3 NO YES YES YES Return fan
A06 Return fan
safety switch
Digital input
“RetFan SafeSW
-1
(automatic)
0 0 0 NO YES YES YES Return fan
A07 Freeze alarm Digital input
“Freeze Alarm”
or Analog input
(dened in FP1)
<= FP2
-1
(automatic)
0 0 0 NO YES YES YES See ”9 Frost
protection”
A08 Fire alarm Digital input “Fire
Alarm”
0 (manual) 0 0 0 YES YES YES YES All
A09 Supply air ow
alarm
Digital input
“Supply Flow”
0 (manual) 0 10 5 NO YES YES YES Supply fan
A10 Return air ow
alarm
Digital input
“Return Flow”
0 (manual) 0 10 5 NO YES YES YES Return fan
A11 Supply lter
alarm
Digital input
“Supply Filter”
0 (manual) 0 10 5 NO YES YES YES None
A12 Return lter
alarm
Digital input
“Return Filter”
0 (manual) 0 10 5 NO YES YES YES None
A13 Pump 1
overload
Digital input
“Coil1 Pump”
-1
(automatic)
0 0 0 NO YES YES YES Pump 1
A14 Pump 2
overload
Digital input
“Coil2 Pump”
-1
(automatic)
0 0 0 NO YES YES YES Pump 2
A15 Pump 3
overload
Digital input
“Coil3 Pump”
-1
(automatic)
0 0 0 NO YES YES YES Pump 3
A16 Coil 1 alarm Digital input
“Coil1 Alarm”
-1
(automatic)
0 0 0 NO YES YES YES Coil 1
A17 Coil 2 alarm Digital input
“Coil2 Alarm”
-1
(automatic)
0 0 0 NO YES YES YES Coil 2
A18 Coil 3 alarm Digital input
“Coil3 Alarm”
-1
(automatic)
0 0 0 NO YES YES YES Coil 3
A19 Humidier
alarm
Digital input
“Humidier
Alarm”
-1
(automatic)
0 0 0 NO YES YES YES Humidier
and pump
A20 Recovery
alarm
Digital input
“RecoveryAlarm”
-1
(automatic)
0 0 0 NO YES YES YES Recovery
and pump
A21 Generic alarm Digital input
“Generic Alarm”
-1
(automatic)
0 0 0 NO YES YES YES None
AEX No connection
with EXC
Module
Communication
error with EXC
extension
-1
(automatic)
0 30 5 NO YES YES NO Actuators
involved
E01 Analog Input
1 fault
Probe open or
short circuited
-1
(automatic)
0 20 10 NO YES YES NO Actuators
involved
E02 Analog Input
2 fault
Probe open or
short circuited
-1
(automatic)
0 20 10 NO YES YES NO Actuators
involved
E03 Analog Input
3 fault
Probe open or
short circuited
-1
(automatic)
0 20 10 NO YES YES NO Actuators
involved
E04 Analog Input
4 fault
Probe open or
short circuited
-1
(automatic)
0 20 10 NO YES YES NO Actuators
involved
E05 Analog Input
5 fault
Probe open or
short circuited
-1
(automatic)
0 20 10 NO YES YES NO Actuators
involved
E06 Analog Input
6 fault
Probe open or
short circuited
-1
(automatic)
0 20 10 NO YES YES NO Actuators
involved