Alarm Settings; Fire Alarms; External Alarms; Alarm Limits - Swegon GOLD PX Series Operation And Maintenance Instructions

12

ALARM SETTINGS

12.1 Fire Alarms

eXteRnaL FIRe aLaRM
Inputs 54 and 55 are used for external fire protection equipment.
The resetting of alarms can be selected to occur manually or auto-
matically.
InteRnaL FIRe aLaRM
The air handling unit's internal temperature sensors serve as fire
protection thermostats. An alarm is initiated if the supply air tem-
perature sensor registers more than 70 °C or when the extract air
temperature sensor registers more than 50 °C.
If an external Extract air/Room temperature sensor is connected and
activated, this works parallel with the extract air temperature sensor
of the unit.
FanS In tHe eVent OF a FIRe
The fans in the air handling unit can be used for evacuating gases,
etc.
The activated function works together with the External fire/smoke
function or Internal fire alarm.
If the air handling unit is idle, the pre-selected fans will start up
regardless of whether External Stop or Manual Stop has been acti-
vated in the hand-held micro terminal.
The damper relay in the air handling unit is energized and the
operating relay drops.
The dampers pre-selected for service in the event of a fire, should
be wired to the damper relay (control unit terminals 22-24) and
these dampers will open.
The dampers that are meant to close in the event of a fire, should
be wired to the in-operation relay (control unit terminals 19-21) and
these dampers will close.
Fan SPeeD In tHe eVent OF FIRe
Will be activated automatically if the fans have been activated in
event of fire (see above), and make it possible to restrict the max
speed of the fans.
Settings:
Value Setting range
Internal fire alarm 0=inactive
1=activated
External fire alarm auto/manual
Fan in event of fire Inactive/EA/SA/
SA+EA
Fan speed in event of 10-100%
fire, SA
Fan speed in event of 10-100%
fire, EA

12.2 External Alarms

eXteRnaL aLaRMS 1 and 2
The external alarms can be used for external functions (control unit
terminals 50-51 and 52-53).
Typical uses:
– Motor protection for the circulation pump in the heating or cool-
ing circuit.
– Service alarm actuated by smoke detectors.
Set the time delay and set whether the alarm shall be activated on
closure or disconnection of the input.
We reserve the right to alter specifications without notice.
INSTALLATION
Settings:
Value
Time delay
Alarm at closure
Alarm reset

12.3 Alarm Limits

TEMPERATURE
DEVIATION SA-TEMP (deviating supply air temperature) indicates
how much the supply air temperature is allowed to be below the
supply air temperature setpoint before an alarm is initiated.
MIN EA-TEMP (min extract air temperature) indicates how low the
extract air temperature is allowed to be before alarm is initiated.
FILTERS
SUPPLY AIR/EXTRACT AIR indicates at which level of contamination
in the supply air filter that an alarm will trip.
HEAT EXCHANGER
ALARM LIMIT indicates at which pressure rise an alarm will trip,
if there is an extra installed pressure transducer for the defrosting
function of the heat exchanger.
SERVICE PERIOD
SERVICE PERIOD indicates the period until the next service.
Settings:
Value
Factory setting
0
TEMPERATURE
Deviating supply air temp.
manual
Min extract air temp.
Inactive
FILTERS
Supply air
100%
Extract air
Supply air, prefilter.
Extract air, prefilter.
100%
HEAT EXCHANGER
Alarm limit
SERVICE PERIOD
Alarm limit
ALARM SET
Setting
range
1-600 sec
1=closure
0=disconnection
0=auto/1=man 0
Changes in the factory-preset alarm limits should only be
made if you have special reasons for doing so and you
should be aware of the consequences.
Setting
range
2-15 °C
8-20 °C
50-300 Pa
50-300 Pa
50-300 Pa
50-300 Pa
30-100
0-99 months
GB.GOLDSK509.091101
*aLaRM SettInGS*
FIRe aLaRM
eXteRnaL aLaRMS
aLaRM LIMItS
aLaRM PRIORItY
aLaRM OUtPUtS
Factory
settings
10 sec
1
Factory
settings
5 °C
15 °C
100 Pa
100 Pa
100 Pa
100 Pa
Pa 50 Pa
12 months
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