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N
T1
GND (0V)
T2
in the same room as the SWH-LT.
S3
C onnect or
Operation:
The contact thermostat will close if the water has
reached the pre-set temperature. In this scenario the
4.3.4 Aansluiten met aanleg thermostaat.
SWH-LT will only discharge warm air. The boiler thermo-
Deze regeling kan gebruikt worden als de thermostaat van de CV ketel in dezelfde ruimte staat als de
stat will switch on the boiler. The boiler will pump hot
WWH.
water around the system with the contact thermostat of
Werking:
the SWH-LT closing if the water is hot enough. The fan
De aanlegthermostaat sluit als het water warm is. De ventilator van de WWH blaast dus alleen warme
will blow warm air into the space.
lucht. De CV thermostaat zet de CV ketel aan. De CV ketel pompt het warme water rond. De aanleg
thermostaat van de WWH sluit als het water voldoende warm is. De ventilator van de WWH blaast dan
If the boiler is shut off by the boiler thermostat, the
warme lucht. Als de CV thermostaat de CV ketel weer uit zet, zal het water afkoelen, en de WWH stopt
met blazen wanneer de aanlegthermostaat weer uit schakelt. De aanlegthermostaat IH8500 kan niet de
water will cool down and the contact thermostat will
lage stromen in het 0‐10V circuit schakelen. Deze moet dus in de 230V voeding van de motor van de
open (disconnect) causing the SWH-LT fan to stop.
WWH worden geplaatst.
Connector
4.3.5 Connection with room thermostat combined with
contact thermostat
This option is applicable when the boiler is controlled by
Instructieboek WWH-EC en WWH-LT Luchtverwarmer versie h
its own thermostat and there is a continuous hot water
supply.
Operation:
The on/off thermostat will operate when there is a
demand for heat. The contact thermostat will not close
until the water has reached a pre-set temperature. In this
scenario, the fan of the SWH-LT will blow warm air and
will prevent draughts.
4.3.5 Aansluiten met ruimtethermostaat gecombineerd met aanleg thermostaat.
Deze regeling kan toegepast worden wanneer de CV ketel door een andere regeling wordt aangestuurd,
The boiler must be turned on and off separately.
en er vanuit gegaan kan worden dat er warm water voorhanden is als dat nodig mocht zijn.
Werking:
De aan / uit ruimtethermostaat schakelt bij warmtevraag. De aanleg thermostaat zal alleen sluiten als
het water warm is. De ventilator van de WWH blaast dus alleen warme lucht. Koude tocht kan op deze
wijze voorkomen worden. Het CV toestel moet separaat aan en uit worden gezet.
L1
2 3 0 V A C
N
T1
GND (0V)
T2
S3
Connector
C onnect or
5. Maintenance and operation
GA3961
10V (OUT)
0-10V (IN)
IH8500
IH5800
GA3961
IH8500
GA3961
IH5800
10V (OUT)
0-10V (IN)
Caution: Make sure that you have turned off the power
supply to the heater you are working on.
Caution!
The heater must be earthed.
5.1 Maintenance
Especially in dusty spaces, it is important to clean the
heater regularly. If the heat exchanger is heavily covered
by dust, it will not displace the heat sufficiently. Use a
vacuum cleaner or compressed air taking care to avoid-
void damaging the heat exchanger fins.
Clean also the fan, guard and air outlet grille.
5.2 Safe operation
The heater is controlled by the room thermostat and/or
the 5 speed switch if there is one present. There are no
controls on the heater itself.
Depending on the installation, the user can make
following settings:
•
Control main or isolation switch
•
Turn up and down room thermostat
•
Turn up and down contact thermostat
•
Change fan speed with 5-stage switch
Adjusting direction of the air outlets is not normally a
user action, this is done by the installer.
Pagina 13/17
5.3 Frost damage
ATTENTION: Frost damage!
ATTENTION!
Do not set the room thermostat lower than 5°C.
Freezing of the exchanger or the tubes, will cause
irreparable damage to the heater. A constant supply of
hot water from the boiler must be ensured. Frost
damage will void warranty claims!
6. Water temperatures/ air volumes
The technical data table (table 1) shows heater capacities
(KW) with supplied hot water temperature of 90/70°C.
In applications where the water flow and return temper-
atures are not 90/70°C, the heat output from the SWH-LT
will be reduced.
To calculate the heat output at different water tempera-
tures, please refer to table 3. Select the water tempera-
ture along with the air temperature at the fan inlet.
Where these intersect on the table, this figure is multi-
plied by the given heat output in table 2, the resultant
figure is the new heat output of the appliance at the new
flow and return water temperatures.
The SWH-ELT is not suitable for steam applications.
7
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