Alpha-InnoTec LW 252A Operating Manual

Alpha-InnoTec LW 252A Operating Manual

Air/water heat pumps, outdoor installation

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OPERATING MANUAL
LW 140A – LW 252A
83054200jUK
UK
Air/Water heat pumps
Outdoor installation
www.alpha-innotec.com

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Summary of Contents for Alpha-InnoTec LW 252A

  • Page 1 OPERATING MANUAL LW 140A – LW 252A 83054200jUK Air/Water heat pumps Outdoor installation www.alpha-innotec.com...
  • Page 2: Please Read First

    Symbols Please read first This operating manual provides important informa- The following symbols are used in the operating man- ual. They have the following meaning: tion on the handling of the unit. It is an integral part of the product and must be stored so that it is accessi- ble in the immediate vicinity of the unit.
  • Page 3: Table Of Contents

    Operating principle of heat pumps ... 6 LW 140A ............24 LW 180A ............25 10 Area of utilization ........... 6 LW 251A / LW 252A ......... 26 11 Heat quantity recording ....... 7 Dimensional drawings ........27 12 Operation ............
  • Page 4: Intended Use

    Intended use Safety The unit is designed for household use and is solely The unit is safe to operate when used for its intended intended for the following functions: purpose. The construction and design of the unit conform to current state-of-the-art standards, all ●...
  • Page 5 During the warranty and guarantee period, service WARNING work and repairs may only be carried out by personnel Never switch on unit if air flow baffles on authorised by the manufacturer. the unit are removed. DANGER IMPORTANT Danger of fatal injury due to electric The integration of the heat pump in ventila- current! tion systems is not permissible.
  • Page 6: Contact

    The refrigerator extracts heat from foods, which is re- ● www.alpha-innotec.com leased into the room through fins on the back. The heat pump extracts heat from our environment: air, earth or water. The extracted heat is conditioned Warranty / Guarantee in the unit and supplied to the heating water.
  • Page 7: Heat Quantity Recording

    11 Heat quantity recording 13 Care of the unit In addition to the proof of the unit’s efficiency, The outer surfaces of the unit can be cleaned with a EEWaermeGalso meets the demand for a heat damp cloth and household cleaning products. quantity recording (hereafter refered to as HQR).
  • Page 8: Scope Of Delivery

    14 Scope of delivery Accessories necessary for operation Packing unit 1: IMPORTANT Use only original accessories from the manu- facturer of the unit. Heating and heat pump controllers, as wall-mounted controllers or integrated in the hydraulic tower (for out- put range 14 – 18kW), as well as control and sensor cables, are functionally necessary accessories, which you must order separately.
  • Page 9: Installation And Assembly

    NOTE NOTE The unit types LW 251A and LW 252A cannot The noise emissions of the heat pumps be lifted with pipes. must be taken into account in the respective installation plans for air/water heat pumps.
  • Page 10 Lifting the unit with a crane NOTE The unit types LW 251A and LW 252A must be lifted with a crane. Remove side laths on the wooden pallet. C Side view 2 IMPORTANT Guide lifting straps past the fan on the side.
  • Page 11: Installation

    15.3 Installation 1.2. Pull each facing panel forward, detach from the unit and set securely aside. CAUTION In the air outlet area the air temperature is approx. 5 K below the ambient temperature. Under certain climatic conditions, an ice lay- er can therefore form in the air outlet area.
  • Page 12 Install air flow baffles. Return top cover to frame. IMPORTANT Remove the protective sheeting from the air flow baffles before installation 4.1. Suspend air flow baffles on the brass bushings on the top side of the frame. Suspend upper facing panels in the top cover. Bolt to the frame at bottom.
  • Page 13: Installation / Connection To Heating Circuit

    15.5 Installation / connection to IMPORTANT heating circuit The hydraulic system must be equipped with a buffer tank, the required volume of which depends on the model of your unit. IMPORTANT  “Technical data / scope delivery“, from Avoid open heating systems and / or heating page 22, “Heating circuit”...
  • Page 14: Condensate Discharge

    18 Buffer tank Make sure that frost-free condensate discharge is ensured.  “Installation plans“, from page 29, for respec- The hydraulic connection of the heat pump requires a tive unit model buffer tank in the heating circuit. The required volume of the buffer tank is calculated based on the following ...
  • Page 15: Hot-Water Tank

    21 Hot-water tank Power connection The power is connected at the connection boxes on If the heat pump will be used for heating hot water, the water connection side. you must integrate special hot-water tanks in the heat If the unit is closed, open lower facing panel on pump system.
  • Page 16 connection diagram and the circuit diagrams for IMPORTANT the respective model. If using the unit in 3~230V systems, please  “Terminal diagram”, page 35, and “Circuit dia- note that the residual-current circuit breaker grams“, from page 36, for the respective model (RCCB) used must be AC-DC sensitive.
  • Page 17: Rinsing, Filling And Bleeding The System

    23 Rinsing, filling and bleeding Antifreeze in the heating circuit the system For air/water heat pumps installed outdoors, it is not necessary to fill a water/antifreeze mixture into the heating circuit. The heat pumps have safety devices that prevent IMPORTANT the water from freezing, even when the heating is The system must be absolutely free from air switched off.
  • Page 18: Insulating The Hydraulic Connections

    24 Insulating the hydraulic External temperature Recommended settings connections -10 °C 0 °C 10 °C Insulate hydraulic lines in accordance with the local 20 °C regulations. 30 °C 10 K Open shut-off devices. Perform a pressure test and check for leaks. Insulate the vibration decouplers and the outside pipes of the heating circuit so that they are sealed against vapor diffusion.
  • Page 19: Maintenance Of The Unit

    cleaned as needed - at the very least annually - by a • The heating circuit is flushed, filled and qualified heating or cooling system technician. thoroughly vented. • ● Check at regular intervals that the condensate All valves and shut-off devices of the heating can drain out of the device freely, without ob- circuit are open.
  • Page 20: Annual Maintenance

    28 Malfunctions 27.2 Annual maintenance ► Determine the quality of the heating water by In the event of a malfunction, you can detect the cause analysis. In the event of deviations from the spec- of the malfunction via the diagnostic program of the ifications, take suitable measures without delay.
  • Page 21: Dismantling

    29 Dismantling DANGER Danger of fatal injury due to electric current! Electrical connections may be installed only by qualified electricians. Before opening the unit, disconnect the system from the power supply and secure it from being switched back on! WARNING Only qualified heating or cooling system technicians are allowed to remove the unit from the system.
  • Page 22: Technical Data / Scope Of Delivery

    Technical data / scope of delivery Model designation Heat pump type Brine/water ı Air/water ı Water/water • applicable ı — not applicable Installation location Indoors ı Outdoors • applicable ı — not applicable Conformity Performance data Heating capacity/COP at 2 Compressors kW ı...
  • Page 23 LW 140A LW 180A LW 251A LW 252A — ı • ı — — ı • ı — — ı • ı — — ı • ı — — ı • — ı • — ı • — ı •...
  • Page 24: Performance Curves

    LW 140A Performance curves Qh (kW) Temp„ (°C) Pe (kW) 35°C 1VD 50°C 1VD Temp„ (°C) Temp„ (°C) ∆p (bar) ∆p” “” (m³/h) 823154 Legende: DE823129L/170408 “” Volumenstrom Heizwasser Temp„ Temperatur Wärmequelle Heizleistung Leistungsaufnahme Coefficient of performance / Leistungszahl Keys: Keys: UK823129L/170408 UK823129L/170408...
  • Page 25 Performance curves LW 180A Qh (kW) Temp„ (°C) Pe (kW) 35°C 1VD 50°C 1VD 35°C 2VD 50°C 2VD Temp„ (°C) Temp„ (°C) ∆p (bar) 0,4000 0,3000 0,2000 p∆” 0,1000 0,0000 “” (m³/h) 823155 Legende: DE823129L/170408 “” Volumenstrom Heizwasser Temp„ Temperatur Wärmequelle Heizleistung Leistungsaufnahme Coefficient of performance / Leistungszahl...
  • Page 26: Lw 251A / Lw 252A

    LW 251A / LW 252A Performance curves Qh (kW) Temp„ (°C) Pe (kW) 35°C 1VD 50°C 1VD 35°C 2VD 50°C 2VD Temp„ (°C) Temp„ (°C) ∆p (bar) 0,4000 0,3500 0,3000 0,2500 0,2000 0,1500 0,1000 p∆” 0,0500 0,0000 “” (m³/h) 823156a Legende: DE823129L/170408 “”...
  • Page 27: Dimensional Drawings

    LW 140A – LW 180A Dimensional drawings 1931 1050 Legende: DE819436 Keys: UK819436 Technische Änderungen vorbehalten. All dimensions in mm. Alle Maße in mm. Front view Vorderansicht Heizwasser Austritt (Vorlauf) R 1 1/4" Seitenansicht Heizwasser Eintritt (Rücklauf) R 1 1/4" Side view Draufsicht Kondensatschlauch Außen-...
  • Page 28: Lw 251A / Lw 252A

    Dimensional drawings LW 251A / LW 252A 1779 1258 Legende: DE819437 Technische Änderungen vorbehalten. Alle Maße in mm. Keys: UK819437 All dimensions in mm. Vorderansicht Heizwasser Austritt (Vorlauf) R 1 1/4" Seitenansicht Heizwasser Eintritt (Rücklauf) R 1 1/4" Front view Draufsicht Kondensatschlauch Außen-...
  • Page 29: Installation Plans

    Installation plan LW 140A – LW 180A >1700 ≥1350 ≥3050 ≥5300 Keys: UK819377a All dimensions in mm. Front view ≥ ... Top view ≥ … Minimum clearances Recess in base Local heat pipe for heating water forward/return flow Empty pipe for electric cables, minimum diameter 70mm Condensate discharge, minimum diameter 50mm Water-permeable surface (gravel, …) in the air outlet area Base...
  • Page 30: Lw 251A / Lw 252A

    LW 251A / LW 252A Installation plan 2 3 4 >2000 ≥1500 ≥3000 ≥5350 Keys: UK819378 All dimensions in mm. ≥ ... Front view Top view ≥ … Minimum clearances Recess in base Local heat pipe for heating water forward/return flow...
  • Page 31: Coastal Installation

    Coastal installation LW 140A – LW 252A IMPORTANT The minimum distances necessary for correct and safe operation as well as any service work must be ob- served. facing away from the coast / prevailing wind direction ● in a sheltered area near a wall...
  • Page 32: Hydraulic Integration

    LW 140A – LW 252A Row tank Subject to change without notice | 83054200jUK | ait-deutschland GmbH...
  • Page 33: Separate Buffer Tank

    Separate buffer tank LW 140A – LW 252A Subject to change without notice | 83054200jUK | ait-deutschland GmbH...
  • Page 34: Legend Hydraulic Integration

    Subject to change without notice | 83054200jUK | ait-deutschland GmbH...
  • Page 35: Terminal Diagram

    Terminal diagram LW 140A – LW 252A 3~N/PE/400V/50Hz 3~N/PE/400V/50Hz 3~N/PE/400V/50Hz 1~N/PE/230V/50Hz B10 A ZW2/SST Subject to change without notice | 83054200jUK | ait-deutschland GmbH...
  • Page 36: Circuit Diagrams

    Circuit diagram 1/2 LW 140A +10V +24V Subject to change without notice | 83054200jUK | ait-deutschland GmbH...
  • Page 37 LW 140A Circuit diagram 2/2 Subject to change without notice | 83054200jUK | ait-deutschland GmbH...
  • Page 38 Circuit diagram 1/2 LW 180A +10V +24V Subject to change without notice | 83054200jUK | ait-deutschland GmbH...
  • Page 39 LW 180A Circuit diagram 2/2 Subject to change without notice | 83054200jUK | ait-deutschland GmbH...
  • Page 40: Lw 251A / Lw 252A

    Circuit diagram 1/3 LW 251A / LW 252A +10V +24V Subject to change without notice | 83054200jUK | ait-deutschland GmbH...
  • Page 41 LW 251A / LW 252A Circuit diagram 2/3 Subject to change without notice | 83054200jUK | ait-deutschland GmbH...
  • Page 42 Circuit diagram 3/3 LW 251A / LW 252A Subject to change without notice | 83054200jUK | ait-deutschland GmbH...
  • Page 43 Subject to change without notice | 83054200jUK | ait-deutschland GmbH...
  • Page 44 GmbH Industriestraße 3 95359 Kasendorf Germany +49 9228 / 9906-0 +49 9228 / 9906-189 info@alpha-innotec.de www.alpha-innotec.com alpha innotec – an ait-deutschland GmbH brand Subject to technical amendments without prior notice.

This manual is also suitable for:

Lw 140a

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