Hewalex PCWU 2.5kW Instructions For User Download Page 16

23.04.2014
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Measured indications

Measured  indications  are  available  from  the  main  menu.
Here,  we  have  one  list of all temperature  readings  in  the
system,  and  signals  from  safeguards and  an  external
controller. During correct operation, the LP and HP contacts
and  an  external  control  unit  should  be  closed. Opening  of
the LP and HP contacts  indicates  equipment  failure
connected  with  cooling  medium  pressure,  or  pressure
controls damage.

Info

Here you will find the id. number of software used by automatics, needed in case of possible update.

5

Anti-Legionella

The  type  of Legionella bacteria  occurs in  water  environment. Their  growth  is  supported  by stagnant  water  in  the  tank  at  the
temperature of 38-42°C. Illness, which they may develop, is called Legionellosis (type of pneumonia). Its symptoms include the
following: high fever, loss of consciousness, cough, respiratory failure. Influenza-like symptoms, diarrhoea, vomiting, bronchitis,
or fatigue and chronic respiratory disorder are also possible. Legionellosis is considered an infectious disease according to the
Ministry  of  Health. In  case  of  incorrect  treatment  it  may cause  death. In  majority,  the  disease  cases  are  observed  in
Mediterranean countries, however occasionally it appears in Poland as well.

An  effective  method  to  destroy Legionella  bacteria is  periodic  tank  superheating  to  water
temperature reaching 70°C. At this temperature the bacteria completely perish. The equipment
is  provided  with  possibility  to  use  anti-Legionella  superheating  every  week  between  midnight
(Sunday/Monday)  and  6  a.m.  on  Monday. During  that  time  the  tank  is  superheated  to  the
temperature  of 70°C either  by  an  electric  heater,  or  e.g.  gas-fired  boiler,  depending  on  the
option  chosen  by  user (described  in  detail  in  par. ‘Operation  parameters  settings’, ‘Anti-
Legionella’).

If water remained in the tank unused for several days, perform an additional superheating (e.g.
after return back home).

NOTE:

Install mixing valve at the tank outlet so as to avoid burns during the Legionella superheating,
especially if water is used by small children.

According to: http://www.e-instalacje.pl/a/3244,bakterie-legionella-w-instalacjach [Joanna Ryńska, 06.12.2004]
Photos: http://www.cruiselawnews.com/tags/legionella/

6

Equipment maintenance

Detailed procedures related to the equipment maintenance are specified in installation-service part of the manual, Maintenance
chapter. User should remember about periodic checks of safety valve according to the valve manufacturer’s requirements, and
about cleaning of the filter of air drawn into the heat pump.

Summary of Contents for PCWU 2.5kW

Page 1: ...the most complex controller in the HUW heat pump market in Poland possibility to control and analyse operation statistics in EKONTROL pL a separate LAN module is needed access to thoroughly metered t...

Page 2: ...Secure the unit COOLING RELATED failures Do not put your fingers inside the unit housing if it is connected to power supply There is a hazard of burning electric shock or cutting your fingers In part...

Page 3: ...tory element of power supply If user observes any alarming symptoms e g noise or odour indicating abnormal equipment operation it is required to cut off power supply and consult authorised service cen...

Page 4: ...between 6 5 and 9 5 conductivity under 2500 uS cm at 20 C ammonia under 0 5 mg l nitrates under 50 mg l chlorides content under 250 mg l copper under 2 mg l permissible value provided that it does no...

Page 5: ...nd or service works one must satisfy important for environment requirements regarding recovery reuse and utilisation of materials In particular keep to the following standards concerning cooling mediu...

Page 6: ...nt drops with decreasing air temperature and due to physical parameters of the medium in compressor system it becomes impossible to receive heat for certain low temperature of the source The same prob...

Page 7: ...the compressor in heat pump system 1 Increases cooling medium pressure and temperature to allow efficient heat transfer in heat pump condenser 2 The compressor has considerable impact on the efficien...

Page 8: ...NUOUS factory setting INTERM Solid fuel fired boiler B shown in diagrams no 5 7 9 Max boiler pump deactivation temperature 10 85 C factory setting 65 C Min boiler pump activation temperature 30 60 C f...

Page 9: ...eat pump Press arrow down to move to internal diagram of heat pump Press arrow up or wait few seconds to return to the main screen Press this button to enter individual settings menu A list of setting...

Page 10: ...llation and service instructions in the controller map Operation parameters settings After approval we may enter parameter settings screen view below on the left side Scrolling arrow down we may also...

Page 11: ...olid fuel fired boiler is working heat pump will not activate when the option of heating with solid fuel fired boiler is set Parameters of accessory equipment The second item in the list of Parameter...

Page 12: ...is too low min temperature of air supplied to the heat pump or it is switched off manually from the controller level then heater may keep heating up the tank to higher temperatures because in this ca...

Page 13: ...list is the priority of heating with solid fuel fired boiler below to the right If YES value is set and conditions required for boiler pump activation are fulfilled all other pieces of equipment opera...

Page 14: ...wish to activate the Anti Legionella function It will start on midnight Sunday Monday and keep running no longer than until 6 a m on Monday The superheating function will end earlier if temperature of...

Page 15: ...ng of inactivity time until backlight dimming the screen will get dimmed if user does not touch any keys for preset time Sounds Sound parameters allow setting keyboard sound if set to YES we will hear...

Page 16: ...Mediterranean countries however occasionally it appears in Poland as well An effective method to destroy Legionella bacteria is periodic tank superheating to water temperature reaching 70 C At this te...

Page 17: ...ipment operation statistics Another important advantage of the unit remote control is round the clock observation by the system and prompt information concerning alarms in the installation A network L...

Page 18: ...ng medium during condensation As a result of this the COP coefficient value depends not only on ambient temperature but on air humidity as well 4 Is it possible to connect the PCWU 2 5kW heat pump to...

Page 19: ...are applicable A It is prohibited to repair the unit without contact with HEWALEX service In case of incorrect equipment operation report failures by phone 32 214 17 10 or e mail serwis hewalex pl De...

Page 20: ...NO 11 Is the system provided with tested safety valve max 7 bar per HUW tank and does water flow after depressing the valve handle YES NO 12 Are suitable valves installed which would according to the...

Page 21: ...and organisational conditions which should be met by computer equipment and systems used for personal data processing O J Poland No 100 item 1024 Your personal information is kept in adequately secur...

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