Loading unit

LK 811 ThermoMat 2.0 W

• Adjustable return temperature

• Electronic regulation ensures an easy operation

TECHNICAL DATA

Voltage

Power consumption

Max. boiler efficiency

Max. working pres-

sure

Working temperature

Return temperature

Ambient temperature

Thread standard

Media

Circulating pump

Material, valve body

Material, insulation

230 VAC 50 Hz

10-75 W, depending on pump speed

65 kW at 20 °C ΔT

0.6 MPa (6 bar)

Min. 5 °C/Max. 95 °C

5-99 °C with LK 100 SmartComfort CT

Min. 5 °C/Max. 60 °C

Rp - female thread

Water - Glycol mixture max. 50%

Wilo Para /6 SC FS14,

Wilo Para /8 SC FS14

Brass EN 1982 CB753S

Expanded Polypropylene EPP

THE FUNCTION OF THE LOADING UNIT DURING THE

DIFFERENT PHASES OF HEATING:

1. HEAT UP PHASE

The water circulates between boiler and

loading unit while the temperature of the

boiler is rising.

2. LOADING PHASE

The electronic temperature controller starts

to open the mixing valve at the chosen tem-

perature and allows return water from the

storage tank to be mixed with supply water

before it returns to the boiler. The return

temperature to the boiler is kept constant.

3. END PHASE

The mixing valve is fully open towards the

storage tank. This results in an optimal

transfer of heat from the boiler and the

storage tank is filled with supply water.

When the boiler has cooled the electron-

ic controller LK 100 SmartComfort CT

prevents re-circulation from storage tank

to boiler.

4. SELF-CIRCULATION WITH CHECK

VALVE

Self-circulation will be obtained as soon

as the fire has gone out and the circulating

pump has stopped. The remaining hot water

is loaded to the storage tank. In case of power

failure or pump breakdown the check valve

automatically opens to allow self-circulation.

The check valve also stops recirculation from

storage tank to boiler.

LK 811 ThermoMat 2.0 W is a loading unit for heating applica-

tions with solid fuel boilers and storage tanks. The loading unit is

intended to ensure a high return temperature as well as an optimal

temperature stratification in the storage tank, thus increasing the

efficiency of the system. Tarring and condensation are prevented

which prolongs boiler life.

The LK 811 ThermoMat 2.0 W is a compact design with an integrat-

ed low-energy circulating pump and a mixing valve that regulates

on two ports. The loading unit has three ball valves to simplify

installation and maintenance and an insulation to minimize heat

loss. Three thermometers that allow for simple control of the

loading process can be ordered as accessories.The loading unit

is available in two versions - with or without check valve. With a

check valve the functions described under phase 4 will be obtained.

The loading unit is reversible and can easily be adapted for mount-

ing to the right or left of the boiler. Thanks to the three ball valves

any part can be changed without draining the system in case of

servicing.

LK 811 ThermoMat 2.0 W is available with or without an electron-

ic temperature controller. Mounting kits for controllers of other

brands are available - see section Temperature Controllers -

Mounting Kits.

Please contact our Sales Department for more information.

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