Technical Data; Accessories - LK Armatur SmartSolar LK 201 Manuel D'instruction

GB ENGLISH
Preface
LK 201 is a complete single-pipe solar pump unit for solar heating
applications.

Technical data

Power supply
Max. pressure
Operating pressure
Safety valve
Max. temperature
Flow range
Connections
Dimensions (HxWxD)
Insulation
Seals
Fittings
Weight
Pump power consumption
Standby power consumption 1,74W
Annual auxiliary electricity
Q aux consumption in terms
of final energy
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 connec-
tions 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.
• Insulated cover of brushed stainless steel

Accessories

• 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 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 con-
nected under the manometer. The discharge pipe of the safety
valve (7) is connected according to regional and national regula-
tions. There is a danger of steam escape with safety valves. There-
fore the discharge pipe must be connected to a heat resistant can.
Be careful to hold on to the compression fittings while tightening
them so as not to damage the connections.
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.
2
230 VAC 50 Hz
1.0 MPa (10 bar)
0.6 MPa (6 bar)
0.6 MPa (6 bar)
120°C, temporarily 150°C
2 – 12 l/min or 8 – 28 l/min
22 mm or 28 mm compression
fittings
435 x 217 x 179 mm
EPP according to IEC 9772 HBF
EPDM
Brass
10 kg
20W
35 kWh
Start-Up
(See Figure 2 on the back page.)
Check the preset pressure level of the expansion vessel. P preset
(bar) = 0.3 bar + ∆h(m)/10. ∆h = height difference between col-
lector 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).
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 system. 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. 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.