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9.2.4 Intermittent Night-time Heating
The unit is utilised to heat the premises when it is normally
stopped by the switch clock.
The function requires that an external room sensor is
connected and that the air handling unit is provided with
air heater for reheating the air. Connect the TBLZ-1-24-2
Room sensor by means of the modular cable supplied, to
an optional connection marked Internal BUS 1. The capac-
ity of the function will be best if the GOLD is provided with
a recirculation damper (not Swegon supply) and a shut-off
damper for outdoor air and exhaust air.
When the function is activated, the air handling unit de-
tects when the room temperature drops below the preset
start temperature. The unit starts with preset flows and
the supply air temperature setpoint.
If extract air fan operation is not desirable, the extract
airflow can be set to 0.
The damper output can be set to 0. This means that the
connected dampers (such as shut-off dampers for outdoor
air and extract air) will not be affected. These dampers are
normally closed when the air handling unit is stopped and
they also remain closed.
At the same time, the damper in the air recirculation sec-
tion, if included, will open.
Conditions to be met for intermittent night-time heating
to start:
• The unit should operate in a time channel/switch clock
stop.
• The room temperature should be below set start tempe-
rature.
Conditions to be met for intermittent night-time heating
to stop:
• High speed or external/manual stop should be activated.
• Room temperature should be above the preset stop
temperature.
• Alarm with preset stop priority has tripped.
If the needed, the air handling unit fans will continue to
operate to cool the electric air heater although other con-
ditions for stop have been met.)
Settings:
Value
Room temperature for start
Room temperature for stop
Supply air temperature setpoint 10 - 40 °C
Supply airflow
Extract airflow
Damper output
Control output
*) The setting range is the same as the min/max settings of the
air handling unit.
**) According to the setting for low speed at USER LEVEL under
FLOW/PRESSURE.
22
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Setting
Factory
range
setting
5 - 25 °C
16 °C
5 - 25 °C
18 °C
28 °C
*) m3/s/Pa
**) m3/s/Pa
*) m3/s/Pa
0 m3/s/Pa
0=not activated 0
1= activated
0=IQnomic
0
1 =IQnomic Plus
INSTALLATION
FUNCTIONS
*FUNCTIONS*
TEMPERATURE
AIR FLOW/PRESSURE
FILTER
OPERATION
HEATING
COOLING
HUMIDITY
IN/OUTPUTS
IQnomic Plus
ALL YEAR COMFORT
OPTIMIZE
Intermittent night-time heating with air recirculation
section:
If the extract airflow is set to 0 and the damper output is
not activated, the following takes place:
When conditions for start are met, outdoor air and ex-
haust air shut-off dampers remain closed. The damper in
the air recirculation section is opened. The extract air fan
is idle.
The supply air fan operates according to the preset supply
airflow and the heating coil downstream of the air hand-
ling unit operates according to the supply air temperature
setpoint, until the conditions for stop are met.
We reserve the right to alter specifications without notice.
GB.GOLDLP.170830
* TEMPERATURE *
TEMPERATURE REG
OUTDOOR TEMP COMP
SUMMER NIGHT COOL
INTERM. NIGHT HEAT
MORNING BOOST
SETPOINT TEMP DISPL
EXT. SENSORS
EXTRACT AIR
SUPPLY AIR
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