Load unit

LTC300

  • Fully adjustable pump speed to optimize the storage tank loading.
  • Accurate control of the return water temperature.
  • High efficiency pump according to the ErP directive.
  • Integrated venting function.

The series LTC300 is a load unit with integrated high efficiency pump. The load unit makes sure that the boiler gets up to a high combustion temperature so as to ensure the lowest possible emissions. 
Above all, the load unit make sure that the return temperature to the boiler is kept high and guaranteed over the entire combustion cycle which enables a higher level of boiler efficiency, reduced tarring and increased life span of the boiler. The high efficiency pump included in the load unit fulfills the new EU directive on energy related products. This directive defines the standardized requirements for energy efficiency and maximizes the EEI (Energy Efficiency Index) to 0,20.

Product range

LTC341, Internal thread with electronic 4 m pump

Art.no. Reference DN Power [kW] Power (max. ∆t [°C]) Opening temperature Connection Adapter A [mm] B [mm] C [mm] D [mm] Weight [kg]
55005300 LTC341 25 60 35 55°C ± 5°C G 1“ 213 42 212 118 4,4
55005400 LTC341 25 50 30 60°C ± 5°C G 1" 213 42 212 118 4,4
55005500 LTC341 25 45 25 65°C ± 5°C G 1" 213 42 212 118 4,4

LTC361, Internal thread with electronic 6 m pump

Art.no. Reference DN Power [kW] Power (max. ∆t [°C]) Opening temperature Connection Adapter A [mm] B [mm] C [mm] D [mm] Weight [kg]
55006000 LTC361 25 90 35 55°C ± 5°C G 1" 213 42 212 118 4,4
55006100 LTC361 25 80 30 60°C ± 5°C G 1" 213 42 212 118 4,4
55006200 LTC361 25 65 25 65°C ± 5°C G 1" 213 42 212 118 4,4
55006300 LTC361 25 50 20 70°C ± 5°C G 1" 213 42 212 118 4,4
55006400 LTC361 32 90 35 55°C ± 5°C G 1¼" 227 42 219 118 4,6
55006500 LTC361 32 80 30 60°C ± 5°C G 1¼" 227 42 219 118 4,6
55006600 LTC361 32 65 25 65°C ± 5°C G 1¼" 227 42 219 118 4,6
55006700 LTC361 32 50 20 70°C ± 5°C G 1¼" 227 42 219 118 4,6

LTC381, Internal thread with electronic 8 m pump

Art.no. Reference DN Power [kW] Power (max. ∆t [°C]) Opening temperature Connection Adapter A [mm] B [mm] C [mm] D [mm] Weight [kg]
55006800 LTC381 40 110 35 55°C ± 5°C G 1½" 225 42 218 118 4,6
55006900 LTC381 40 95 30 60°C ± 5°C G 1½" 225 42 218 118 4,6
55005200 LTC381 40 80 25 65°C ± 5°C G 1½" 225 42 218 118 4,6
Installation support

Installation examples

Installation examples

Documents

Technical data

Technical data

Pressure class: PN 6
Leakrate A - AB: max. 0,5% of max. flow
Leakrate B - AB: max. 3% of max. flow
Supply voltage: 230 ± 10% V AC, 50 Hz
Cable length: 3,0 m
Power consumption: LTC341: max. 20 W;
LTC361: max. 43 W;
LTC381: max. 80 W
EEI (Energy Efficiency Index), circulation pump: <0,20
Energy classification: A
Rangeability Kv/Kv min: 100
Connections: Internal thread (G), ISO 228/1
Media temperature, max.: +110 °C
Media temperature, min.: 0 °C
Ambient temperature, max.: +60 °C
Ambient temperature, min.: 0 °C
Material, valve body: Nodular iron EN-JS 1050
LVD 2014/35/EU
EMC 2014/30/EU
RoHS 2015/863/EU
PED 2014/68/EU, article 4.3
Pressure Equipment in conformity with PED 2014/68/EU, article 4.3 (sound engineering practice).
ErP 2009/125/EU
ErP 2015

Flow pattern

Flow pattern

Dimensioning

Dimensioning
See Data sheet

Wiring

Please see the Installation instruction
Accessories and Spare Parts

Options

Art No. Reference Designation
57060500 57060500 LTC801 ESBE LTC801 Shut-off valves / Adapters G1½" x G1", 3pcs.
57060600 57060600 LTC801 ESBE LTC801 Shut-off valves / Adapters G1½" x G1¼", 3pcs.
57060700 57060700 LTC801 ESBE LTC801 Shut-off valves / Adapters G1½" x G1½", 3pcs.
57060800 57060800 LTC801 ESBE LTC801 Shut-off valves / Adapters G1½" x G2", 3pcs.
57060900 57060900 LTC801 ESBE LTC801 Shut-off valves / Adapters G1½" x CPF 28mm, 3pcs.

Spare parts

Art No. Reference Designation
57020100 57020100 VTC951 ESBE VTC951 Thermostat 50°C
57020200 57020200 VTC951 ESBE VTC951 Thermostat 55°C
57020300 57020300 VTC951 ESBE VTC951 Thermostat 60°C
57020800 57020800 VTC951 ESBE VTC951 Thermostat 65°C
57020400 57020400 VTC951 ESBE VTC951 Thermostat 70°C
57020500 57020500 VTC951 ESBE VTC951 Thermostat 75°C
57020900 57020900 LTC922 ESBE LTC922 Jointing set VTC/LTC, 3pcs of fibre gasket 1½".
57060400 57060400 LTC921 ESBE LTC921 Non-return insert.
57061300 57061300 LTC952 ESBE LTC952 Thermometer, 3pcs.
57061400 57061400 LTC953 ESBE LTC953 Insulation, complete in two parts.
57061500 57061500 LTC934 ESBE LTC934 Pump Yonos Para MS/4-20/SC
57061600 57061600 LTC934 ESBE LTC934 Pump Yonos Para MS/6-43/SC
57061700 57061700 LTC934 ESBE LTC934 Pump Yonos Para MS/8-60/SC
Download area

Download area

Type Preview Download
Data Sheet LTC300 download
Installation instruction LTC300 download
Certificate Declaration of Conformity LTC300 download
Certificate Building Product Declaration (BPD3), LTC300 download
Image LTC300, high res download
2D Image LTC300 download
3D drawing (stp file) LTC340, LTC360 DN25 download
3D drawing (stp file) LTC380, DN40 download
Applications

Applications

Efficient storage tank loading.

Products

LTC300

Efficient storage tank loading with available safety equipment.