GB
ENGLISH
2
PREFACE
LK 201
is a complete single-pipe solar pump unit with integrated con-
troller for solar heating applications. The solar pump unit is delivered
with all necessary components for safe operation and control of the
solar thermal system.
TECHNICAL DATA
DELIVERY PARTS
•
Valve combination for filling and draining with flow meter
2 - 12 l/min or 8 - 28 l/min and built-in adjusting/shut-off ball
valve. Pipe connection 22 mm or 28 mm compression fitting.
Hose connections G ¾”.
•
Safety valve 6 bar with manometer 0 - 10 bar, G ¾” male threads
for expansion vessel, ¾” female thread for discharge pipe.
•
Circulator Grundfos UPM3 Solar 25-75 130
•
Ball valve with built in thermometer (0 - 120 °C) and check
valve. Pipe connection 22 mm or 28 mm compression fitting.
•
Solar controller SmartSol with TFT colour display
•
TS1 collector sensor PT1000 180°C, L = 3 m
•
TS2 tank sensor PT1000 105°C, L = 4 m
•
TS3 extra sensor PT1000 105°C, L = 4 m
•
Insulated cover of brushed stainless steel
ACCESSORIES
•
TS4 extra sensor PT1000 105°C, L = 4 m
• Sensor
housings
MOUNTING
(See Figure 2 on the back page.)
Determine an appropriate mounting site for the solar pump
unit and the expansion vessel. Remove the steel cover. Mount
the solar unit so that the display is easy to read and operate
but out of children’s reach.
Attention! When mounting all local directives and
regulations must be followed.
Connect the safety group (6). The expansion vessel is to be
connected under the manometer. The discharge pipe of the
safety valve (7) is connected according to regional and national
regulations. There is a danger of steam escape with safety
Power supply
230 VAC 50 Hz
Sensors
PT1000
Protection class
IP20
Max. pressure
1.0 MPa (10 bar)
Operating pressure
0.6 MPa (6 bar)
Safety valve
0.6 MPa (6 bar)
Max. temperature
120°C, temporarily 150°C
Flow range
2 – 12 l/min or 8 – 28 l/min
Connections
22 mm or 28 mm compression
fittings
Dimensions (HxWxD)
435 x 217 x 179 mm
Insulation
EPP according to IEC 9772 HBF
Seals
EPDM
Fittings
Brass
Weight
10 kg
Pump power consumption
20W
Standby power consumption
1,74W
Annual auxiliary electricity
Q aux consumption in terms
of final energy
35 kWh
valves. Therefore the discharge pipe must be connected to a heat
resistant can.
Be careful to hold on to the compression fittings while tighten-
ing them so as not to damage the connections.
At delivery the SmartSol controller has three sensors. TS1
collector sensor, TS2 tank sensor and TS3 extra sensor. An
additional PT1000 sensor is optional.
The sensor cables can be extended up to a length of 100 m. To
this effect, a cable cross section of 2 x 1.5 mm² is recommended.
The sensors are to be mounted according to the SmartSol As-
sembly and Operating Instructions.
Attention! The sensor cables must not contact pipes, valves or
power cables. Use plastic straps to separate them.
All pipes connected to the solar pump unit must be insulated.
To avoid corrosion monopropylene glycole is the recommended
heat transfer fluid.
START-UP
(See Figure 2 on the back page.)
Check the preset pressure level of the expansion vessel. P
preset (bar) = 0.3 bar + Δh(m)/10. Δh = height difference be-
tween collector and expansion vessel.
The working pressure should be 0.5 bar higher than the preset
pressure level of the expansion vessel. The safety valve must
open at 6 bar.
Caution! The solar system must not be filled in strong sun-
shine.
•
Unscrew the cover of the filling valve (4). Connect a filling hose
with filling pump. Close the ball valve (3). Open the filling valve.
•
Unscrew the cover of the draining valve (1). Connect the
draining hose. Open the draining valve.
•
Put the filling and draining hoses into the can with heat
transfer fluid.
•
Start the filling pump. Pump at least 1 – 2 litres of heat transfer
fluid into the system. Start the circulator (5) manually ac-
cording to the SmartSol Assembly and Operating Instructions.
Caution! Damage due to dry running. The pump must
never be allowed to run dry.
When the fluid comes out from the draining hose, the circulator
should run for at least 15 min until all air is removed from the sys-
tem. It is important that the whole system is filled up correctly. If
there are parallel collectors with ball valves, fill one collector at
a time.
•
When all air is removed, close the draining valve (1). Fill the
system until the working pressure is reached. Close the filling
valve (4) and shut off the filling pump. Open the ball valve (3) so
that the fluid can circulate.
•
Use flowmeter (2) to check that the flow is at least 2 litres/min.
The flow is adjusted with the ball valve (3).
•
The safety valve (7) prevents the pressure from rising too high.
The safety valve opens at 6 bar. Connect a draining
pipe from the safety valve to a heat resistant can.
• When
the
system works correctly, disconnect the hoses and
screw on the valve covers. Set the SmartSol in automatic mode by
pressing ESC. Remount the stainless steel front cover.
Caution! When remounting the front cover be careful not to
damage cables.
• When
draining
the system, the check valve must be open. Open
the check valve by turning the knob with the
integrated thermometer 45°.
Attention! When venting the pump the controller must be
protected from outcoming fluid.
