GB.GOLDLP.170830
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We reserve the right to alter specifications without notice.
13.3 Alarm Limits
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.
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 Setting Factory
range settings
TEMPERATURE
Deviating supply air temp. 2-15 °C 5 °C
Min extract air temp. 8-20 °C 15 °C
FILTERS
Supply air 50-300 Pa/ 100 Pa/
5-20%* 10%*
Extract air 50-300 Pa/ 100 Pa/
5-20%* 10%*
Supply air, prefilter. 50-300 Pa 100 Pa
Extract air, prefilter. 50-300 Pa 100 Pa
HEAT EXCHANGER
Alarm limit 30-100 Pa 50 Pa
SERVICE PERIOD
Alarm limit 0-99 months 12 months
*Depending on the choice of monitor function.
13.4 Alarm Priority
There should be special reasons for alteration of alarm prio
-
rity and you should be aware of the consequences.
Changes in priority should only be made if you have special
reasons for doing so and you should be aware of the conse
-
quences. The priority of certain alarms cannot be changed.
Settings:
See 18.2 Alarm Descriptions.
INSTALLATION
ALARM SET
*ALARM SETTINGS*
FIRE ALARM
EXTERNAL ALARMS
ALARM LIMITS
ALARM PRIORITY
13 ALARM SETTINGS
13.1 Fire Alarms
EXTERNAL FIRE ALARM
The Inp. 1 and Inp. 2 inputs can be used for external fire protection
equipment The resetting of alarms can be selected to occur manu-
ally or automatically.
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
activated in the hand-held micro terminal.
The damper relay in the air handling unit is energised and the
operating relay drops.
The dampers pre-selected for service in the event of a fire, should
be wired to the damper relay 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 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 Factory setting
Internal fire alarm 0=inactive
1=activated
0
External fire alarm auto/manual manual
Fan in event of fire Inactive/EA/SA/
SA+EA
Inactive
Fan speed in event of
fire, SA
10-100% 100%
Fan speed in event of
fire, EA
10-100% 100%
13.2 External Alarms
EXTERNAL ALARMS 1 and 2
Input Inp. 1 and Inp. 2 can be used for external alarms (can be
selected under Inputs/Outputs).
Typical uses:
– Motor protection for the circulation pump in the heating or
cooling 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.
Settings:
Value Setting Factory
range settings
Time delay 1-600 sec 10 sec
Alarm at closure 1=closure 1
0=disconnection
Alarm reset
0=auto/1=man 0
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