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Subject to technical amendments without notice  |  83059700gUK – Translation of the operating manual |  ait-deutschland GmbH

3.4  Accessories

The following accessories are available for the device 
through the manufacturer's local partner:

 

Ɣ

Domestic hot water tank

 

Ɣ

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Room thermostat to switch the cooling function

 

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Dew point monitor to protect a system with cooling 

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Ɣ

Recirculating pumps

 

Ɣ

Switching valves

 

Ɣ

Connection  kit  with  vibration  decoupling  for 
heating circuit

 

Ɣ

Connection  kit  with  vibration  decoupling  for 
desuperheater

3.5  Function

Liquid  refrigerant  is  evaporated  (evaporator),  the 
energy  for  this  process  is  environmental  heat  and 
comes from the outside air. The gaseous refrigerant is 
compressed  (compressor),  this  causes  the  pressure 
to  rise  and  therefore  the  temperature  too.  The 

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(condenser). 

The  high  temperature  is  hereby  discharged  to  the 
heating  water  and  is  used  in  the  heating  circuit. 
The  liquid  refrigerant  at  a  high  pressure  and  high 
temperature  is  depressurised  (expansion  valve). 
The  pressure  and  temperature  drop  and  the  process 
begins again.

The heated heating water can be used for the domestic 
hot  water  charging  or  for  the  building  heating.  The 
temperatures  required  and  use  are  controlled  by  the 
heat pump controller. Reheating, drying out screed or 
increasing the domestic hot water temperature can be 
carried out by using an electric heating element, which 
is activated by the heat pump controller as and when 
necessary. 

The  vibration  decouplers  (accessories)  for  the 
hydraulics 

prevent 

structure-borne 

sound 

and 

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and therefore into the building.

Cooling

Cooling  is  integrated  in  the  units.  The  following 
options  are  possible  for  units  with  cooling  function 
(

Æ

operating manual for the heating and heat pump 

controller):

 

Ɣ

Active cooling

 

Ɣ

Control of the cooling function via the heating and 
heat pump controller

 

Ɣ

Changeover  between  heating  and  cooling 
operation

Summary of Contents for LWP Series

Page 1: ...UK 83059700gUK Translation of the operating manual Air water heat pumps Operating Manual LWP...

Page 2: ...cope of supply 8 5 2 Storage 8 5 3 Unpacking and transport 8 5 4 Installation 9 5 5 Noise 10 6 Hydraulic installation 12 6 1 Condensate drain 13 7 Electrical installation 14 OXVKLQJ OOLQJ DQG YHQWLQJ...

Page 3: ...l hydraulic integration Operating manual of the heating and heat pump controller Brief description of the heat pump controller Operating manual of the expansion board Log book 1 3 Symbols and markings...

Page 4: ...ies and damage to property Ensure that personnel are familiar with local regulations especially those on safe and hazard aware working OORZ TXDOL HG SHUVRQQHO ZLWK HOHFWULFDO WUDLQLQJ only to carry ou...

Page 5: ...ystems Proper planning design and commissioning Closed system with regard to corrosion Integration of an adequately dimensioned pressure maintaining device Use of demineralised heating water or VDI 20...

Page 6: ...sides 3 2 Wall mounted controller The box with the wall mounted controller is located at the bottom right in the device 3 3 Layout NOTE This section essentially names the FRPSRQHQWV UHOHYDQW IRU IXO O...

Page 7: ...is hereby discharged to the heating water and is used in the heating circuit The liquid refrigerant at a high pressure and high temperature is depressurised expansion valve The pressure and temperatur...

Page 8: ...cutting your hands on sharp edges of the device Wear cut resistant protective gloves The hydraulic connections are not designed for mechanical loads Do not lift or transport the device by the hydraul...

Page 9: ...ice 2 Dispose of the transport and packaging material in an environmentally friendly way and in accordance with local regulations 5 4 Installation Set up and connection CAUTION In the air outlet area...

Page 10: ...r unit model 7HFKQLFDO GDWD VFRSH RI VXSSO RYHUYLHZ HDWLQJ FLUFXLW VHFWLRQ RQQHFW WKH XQLW WR WKH HG SLSLQJ RI WKH KHDWLQJ circuit via vibration decouplers You must install them to prevent the transfe...

Page 11: ...lectrical cables ATTENTION Irreparable damage to the compressor due to wrong URWDWLQJ HOG QVXUH WKDW WKHUH LV D FORFNZLVH URWDWLQJ HOG IRU the compressor load infeed Basic information about the electr...

Page 12: ...HYHQWLQJ damage in hot water heating systems Required pH value 8 2 10 for aluminium materials pH value 8 2 8 5 Fill the system only with demineralised heating water VE water or VDI 2035 water low salt...

Page 13: ...or the integration of storage tanks in series Complete the work steps quickly otherwise the maximum return temperature may be exceeded and the heat pump switches to high pressure fault 7XUQ WKH DGMXVW...

Page 14: ...epartment In other countries Send notice of completion for heat pump systems and rough checklist to the manufacturer s local partner 4 Arrange for the heat pump system to be commissioned by after sale...

Page 15: ...3 Faults Read out the cause of the fault via the diagnostics program of the heating and heat pump controller Contact the local partner of the manufacturer or the factory s customer service Have the fa...

Page 16: ...16 Subject to technical amendments without notice 83059700gUK Translation of the operating manual ait deutschland GmbH...

Page 17: ...nd pressure level at 1 m distance from edge of unit Outside Max dB A Sound power level Inside Max dB A Sound power level Outside Max dB A Sound power level per EN12102 dB A Heat source Air flow rate a...

Page 18: ...t pump VD Compressor Temp Hot water temperature Flow Return 823279a 10 15 20 25 30 35 40 45 50 55 60 65 70 75 22 17 12 7 2 3 8 13 18 23 28 33 Temp C Qh kW 35 C 1VD 55 C 1VD 35 C 2VD 55 C 2VD 1 2 3 4 5...

Page 19: ...SDFLW LQGH p Pressure loss heat pump VD Compressor 823279a 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 15 20 25 30 35 40 Temp C Q0 kW 7 C 1VD 18 C 1VD...

Page 20: ...leranz Allgemein DIN ISO 2768 cL Oberfl chen ArtikelNr Dimensioned drawing LWP Item Name 1 Horizontal connection area water condensate 2 Vertical connection area water condensate feed through electric...

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