DKCD VI.78.S2.02 © Danfoss 8/2001 Part no. 40590
Instructions for installations
Danfoss Electronic Solar Heat Regulator SH-E01
Part no. 40590
Installation
Install the regulator on a wall. Start by attaching the back
plate to a vertical flat surface by means of 2 x Ø 4 mm
screws. The terminals must be at the top.
Fit the temperature sensors in the immersion pockets - in
the solar collector and at the bottom of the hot-water tank.
The cables are 3 m, but can be extended as required by 2 x
0.75 mm
2
double-insulated cable. EMC approved for 50 m
cable length.
Function test
The regulator is ready for operation when connected to
mains. The display becomes active and current tempera-
tures are shown.
Display updates once per minute. By pressing INFO button
display updates immediately.
Temperature indication
Solar collector Tank
Trouble shooting
Display Cause Remedy
No display 230V supply off Check supply/connections
Red LED lit Fault at sensor 1 (Collector) Check connections/sensor
Display flashes ”F1”
Red LED lit Fault at sensor 2 (tank) Check connections/sensor
Display flashes”F2”
Red LED lit Pump does not run Check pump mode/connections
Tank temp. >95° Pump cannot "keep up" Set speed higher
No alarm,
temperature flashes
Technical data
Supply voltage 230V/ 50 Hz±10%
Ambient temperature 0 to 45 °C
Pump output 230 VAC, 2(1)A
Alarm output Voltage free relay output, 2(1)A
Enclosure rating IP40
Switching action Type 1B
Control polution situation Polution degree 2
Rated impulse voltage 2.5 kV
Ball pressure T 75 °C
Pump runs, indicates high
temperature
Pump does not run
Set speed higher
Pump or pump output defective
12
Use
The SH-E01 regulator is used for controlling utility water in-
stallations consisting of a solar collector circuit and a hot-
water tank, where the utility water is heated by solar energy.
The solar heat circuit circulation pump is controlled by the
differential temperature between the solar collector and the
tank bottom. If the differential temperature is higher than the
preset start-up temperature differential, the circulation pump
will run.
To avoid unnecessary pump operation the temperature of
the solar collector has to be higher than 15°C before the
pump starts operating. The pump will run until the tempera-
ture differential is below 2°C.
Wiring
The wiring to the regulator must be connected to the back
plate terminal strip:
Designation Terminal
Ground
Neutral N
Phase L
Sensor in solar collector T1
Sensor, common COM
Sensor in tank T2
Alarm AL
Pump, phase P1
Supply voltage L1, max. 2(1)A
Reset and setting of regulator
Set the regulator on the DIL switch on the back.
Factory settings: Setting range
Start-up temp. differential 5 °C* 5 - 10 - 15 - 20 °C
Pump exercise ON** ON-OFF
Reset OFF
*) Pump stop temperature differential is fixed: 2°C
**) Pump exercise sequence: 1 min/14 days
T1: Temperature sensor in solar collector
T2: Temperature sensor in hot-water tank
Circulation pump
Solar heat regulator
0
95
120
-40
Operating range
Sensor fault / alarm
Sensor fault / alarm
High temp./ alarm
Low temp.
Display
0°C flashes
F2 flashes
Meaning
99
Temp. flashes
F2 flashes
99°C flashes
°C
0
120
150
200
-9
-40
Operating range
Sensor fault / alarm
Sensor fault / alarm
High temp.
Low temp.
Display
150 °C flashes
Temp. flashes
Temp. flashes
- 9 °C flashes
F1 flashes
F1 flashes
Meaning
°C
1 2 3 4
Position ON
Position OFF
Switch no.
System reset
Pump exercise
Setting of start-
temperature
differen tial:
Switch no. Start temp.
3 4 differential
OFF
OFF
ON
ON
OFF
ON
OFF
ON
5 °C
10 °C
15 °C
20 °C
DKCD VI.78.S2.02 © Danfoss 8/2001 Part no. 40590
Operation instructions
Danfoss Electronic Solar Heat Regulator SH-E01
Part no. 40590
Description of function
The regulator regulates the heat transmitted from the solar
collector to the utility water tank.
The pump of the solar heat installation is controlled auto-
matically via temperature sensors.
PUMP
This button is used to switch between pump operation patterns:
AUTO Automatic operation of circulation pump Normal operation
MAN Circulationspump runs continuously Used e.g. for service
STOP The pump does not run Used e.g. for service
Temperature display
The display shows either temperature or solar heat output.
Select by pressing the INFO button. If temperature is dis-
played, the temperature is given at both the solar collector
and the bottom of the hot-water tank. The solar collector in-
stallation is in operation when the temperature of the solar
collector is higher than the temperature of the hot-water
tank.
Power failure
In case of power failure, the regulator remembers the accu-
mulated solar heat output and the days counter for 24
hours. The pump mode setting is also retained.
Forced cooling
If the temperature of the hot-water tank exceeds 90°C, the
pump will run until the hot water has been cooled to 60°C.
The pump must be on AUTO.
Regulator fault display
If the temperature sensors have a fault, this is shown by the
red LED being lit and F1 or F2 flashing.
Call in the installer.
If the red LED is lit and the tank temperature flashes at the
same time, the temperature of the hot-water tank may be
too high. If this state continues, call in the installer.
AUTO
MAN.
STOP
Temperature in hot-water tank
Temperature in solar collector
INFO
This button is used to
switch between the two
modes: Temperature or
solar heat output
LEDs
Green LED indicates the pump is running
Red LED indicates fault
Solar heat output
SOLAR HEAT OUTPUT
Gives the performance of the solar heat installation. The
figure is calculated on the basis of the difference between
the temperature in the solar collector and the temperature
in the tank, as well as the time in which the pump is running
in AUTO.
Max. display value is 2999.
DAYS COUNTER
Gives the number of days for which the solar heat output
has been calculated. The max. calculation covers 30 days.
Automatic reset of SOLAR HEAT OUTPUT and DAYS
COUNTER is effected when the days counter reaches 30.
A manual reset can be made by pressing the INFO button
for 3 seconds.
Solar heat in Europe
The graph indicates the amount of solar heat per month
that can be expected in different regions of Europe.
AUTO
MAN.
STOP
Days counter
Solar heat output
INFO
PUMP
ALARM
AUTO
MAN.
STOP
Ù
Ú
Solar heat output
Solar heat is free - go for it!
The performance of the solar heat system relates directly to
the amount of hot water used. The higher consumption the
better performance.
During longer periods of absence, eg. during summer
holidays, in which plenty of free solar heat may be expected,
one might observe that the performance is below average.
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