10
Heat Exchanger Operation
(S models only)
Heating Boiler
Heat exchanger operation is used if you, for example, only
want to heat water via an external heating boiler in the
winter (an oil burner, for example). Set the unit to the
lowest acceptable water temperature, and it will then
function as an emergency back-up. Afterwards, it will be
the thermostat of the oil burner that will determine the
heating of the water.
This mode of operation requires the installation of an
extra sensor in the tank for controlling the boiler. See the
section: Optional Connection of a Heat Exchanger. The
maximum water temperature must be limited to 65 °C. The
temperature can be exceeded for short periods of time,
for example, in connection with disinfection.
If the boiler is to function as an extra heat source for the
unit, the temperature of the thermostat of the boiler
should be set about 5 °C lower than the thermostat of the
unit itself. This will ensure that the boiler is only operating
when water consumption cannot be covered by the unit.
When the unit is put into operation, it is necessary to
ensure that sensor values are set as desired.
Wood burner or solar collector
This optional operational connection can be used if the
function of the unit is to be supported by a wood burner or
a solar collector installation.
Sensor T9 (see the diagram on the next page) measures the
temperature in the wood burner or the solar collector. If the
temperature is higher than the water temperature in the
tank, it is possible for the control unit to activate a circula-
tion pump which will circulate water through the coil in the
tank, thereby heating the water. Hysteresis can be set up at
0-5 °C. Maximum temperature is 60 °C. Above this tempe-
rature, the control unit will disengage the pump in order to
protect the tank.
Energy-Saving Tips
Do not set the water temperature higher than necessary.
The lower the temperature, the higher the efficiency of the
unit. Only use high temperatures when necessary
Fan Operation Tips
Do not ventilate more than necessary. Over-ventilation
often results in very low humidity inside the dwelling, which
causes discomfort. In addition, it is a waste of energy to
over-ventilate. However, always make sure that there is
compliance with the required minimum atmospheric
volume.
Rechecking
After installation, we recommend that you check that
all connections are water and airtight and that condensed
water will flow off without a hindrance.
For maintenance, see the instruction manual.
For troubleshooting, see the instruction manual.
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L1
L2
L3
L6
L8
L11
H2
H3
H7
H6
H8
H9
H17
H16
ES960C
PE
PE
L17
A
B
Q
1=
1.
6A
Q
2=
2.
5A
H1
L4
Q3= 0.5A
Q4= 0.5A
Q1= H8,H9,H10,H11,
H12,H13,H14,
H15,H16,H17
Q2= H6,H7,H9
Q3= L1-L17
Q4= L1-L17
Q5= H4, H5
H4
H5
H10
H11
H12
H14
H13
H15
L5
L9
Q
5=
6.
3A
L10
L16
C
D
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L1 = Potentialfri indgang til ekstraudstyr:
Hygrostat, Emhætte, CO2
L2 = Optima Display
L3 = Følerne T1,T3,T4,T7
L4 = Fugtføler P1
= Behovsstyring B1
L5 = Føler T2S
L6 = Følerne T5,T6,T8,T9
L8 = Eksternt stop
L9 = Ikke i brug
L10 = Modulerende For / Eftervarme
L11 = 0-10V Motorventil
Eftervarme
0-10V Ekstern bypass
L16 = Modbus
L17 = 0-10V Udsugningsventilator
0-10V Indblæsningsventilator
A = LED blinker - Forsyning ok
B = LED blinker (20 sek. interval) - Kommunikation til Optima Display
D = LED blinker - Modbus kommunikation
Q = Sikring
MV = Magnetventil
H1 = Nettilslutning 230 VAC
H2 = (R2) Varmtvands Elpatron 230VAC
H3 = (R3) On/Off El-For/eftervarme 230VAC
H4 = (R1) Højtrykspressostat
H5 = (R1) Kompressor 230VAC
H6 = (R10) Motorventil eftervarme,
Ekstern Bypass 230VAC
H7 = (R10) Ventilator, udsugning 230VAC
H8 = (R12) Belimo CM230-F-R ON/OFF Bypass 230VAC
H9 = (R10) Ventilator, indblæsning 230VAC
H10 = (R4) MV Afrimning 230VAC
H11 = (R7) Ekstra køl 230VAC
H12 = (R5) MV Vandvarme drift 230VAC
H13 = (R5) MV Udligningsventil 230VAC
H14 = (R6) MV Rumvarme drift 230VAC
H15 = (R6) MV Udligningsventil 230VAC
H16 = (R8) Hjælperelæ 230VAC
H17 = (R9) Hjælperelæ 230VAC
