Hewalex PCWU 200K-2.3kW, PCWU 300SK-2.3kW Instruction Manual

Download

Instruction manual

Contents

Heat pump water heater

PCWU 200K-2.3kW PCWU 300SK-2.3kW

General

1. Safety rules for installation.......................................................................................

2. Warranty terms........................................................................................................

3. Recycling and utilization...........................................................................................

4. Environmental requirements ...................................................................................

Operation instruction (for user)

1. General ....................................................................................................................

2. Cost saving...............................................................................................................

3. Heat pump structure ...............................................................................................

4. Controller instruction ..............................................................................................

4.1 Driver map .........................................................................................................

4.2 To start the heat pump ......................................................................................

4.3 Parameter settings .............................................................................................

4.4 Controller settings ...........................................................................................

4.5 Measured parameters .....................................................................................

4.6 Info ...................................................................................................................

5. Antilegionella..........................................................................................................

6. Equipment maintenance.........................................................................................

Instruction manual

Heat pump water heater

PCWU 200K-2.3kW PCWU 300SK-2.3kW

7. Operating FAQ ...........................................................................................................

8. GSM service ...............................................................................................................

Installation service instruction (for installers)

1. Storage and transportation .........................................................................................

2. Installation location selection......................................................................................

3. Installlation .................................................................................................................

3.1 Connection heat pump with other devices ...........................................................

3.2

4. Maintenance ...............................................................................................................

5.1 Air filter and air supply pipe...................................................................................

5.2 How to remove the top cover in order to clean the evaporator............................

5.3 Magnesium anode checking .................................................................................

5.4 Titanium anode checking ......................................................................................

5.5 Emptying and cleaning of the water tank .............................................................

6. Security of heat pump ................................................................................................

6.1 Evaporator defrosting ............................................................................................

6.2 Overheating protection for the tank ......................................................................

6.3 Anti-freezing protection .........................................................................................

6.4 Function of switching off heat pump automatically when COP is low....................

6.5 Compressor protection ..........................................................................................

8. Controller instruction (extended version for installers) .............................................

8.1 Driver map ............................................................................................................

8.2 Parrameter settings ...............................................................................................

8.3 Manual control .....................................................................................................

9. Alarms .........................................................................................................................

9.1 Temperature sensors .............................................................................................

9.2 High pressure and low pressure protection ..........................................................

9.3 Alarm list ...............................................................................................................

Technical data

1. Dimensions .................................................................................................................

2. Parameter table...........................................................................................................

3. CE certyficate...............................................................................................................

4. Performance charts.....................................................................................................

5. Electrical diagram .......................................................................................................

Gwarancja i serwis

1. Warranty card ............................................................................................................

Air supply ..............................................................................................................

3.3 Power supply .........................................................................................................

3.4 Condense discharge ..............................................................................................

7. Disconnect the unit from main power supply ............................................................

General

1. Safety rules for installation

In order to avoid danger to users and installers, the following safety rules must be strictly obeyed:

A) The heat pump integrated with water tank shall be installed by a qualified installer with specialized knowledge and electrician certificate to 1kV. If you would like to change the location of the unit, please use the services from qualified installers as well.

B) The power supply cable of heat pump must be connected to a sokect where there is no posibility to contact water.

C) Do not install heat pump nearby the pipeline nor storage of flammable gas.

D) Make sure the heat pump is located on a foundation solid enough to support heat pump with full filled tank. The foundation must be level for proper operation of the heat pump and please avoid tilting the unit..

F) Do NOT put your fingers in the pipeline of air inlet or outlet when the unit is running, to avoid posibility of burns, electrical shock or injuries.

G) Always disconnect the unit from power supply during maintaning or servicing.

H) Please read the manual carefully before changing settings in controller.

I) If the unit has not been used for more than 2 weeks, before restart using hot water, please firstly let the hot water run out for a few minute. It is also recommended to heat the tank to high temperature even after this action. This is to prevent legionella infection (in the case of Legionella heating option is disabled)..

HEWALEX does not take responsibility for accident, which is caused by improper or unsafe installation.

E) If you found any abnormality(ie, noise or smell) generated by the unit, please shut down the unit by unpluging power cable and contact our service team for consultation.

2. Warranty terms

At the end of this manual, a warranty card with the following terms is attached. It is required all customers to complete this warranty card in order to

use it for potential warranty claims in the future.

A) It is forbidden to repair the unit without contacting HEWALEX service team. In case of any malfunction or failures, please inform us via telephone (serwis@hewalex.pl). Basing on failure information provided, we will provide local service for major malfunctions or guaidance of repairing for minor failures.

B) The heat pump must be connected to a properly functioning electrical system. Installation requirements include:

C) Water supplied for heat pump shall meet the requirments of drinking water (Journal of Laws No. 203, item. 1718):

D) Please use a safety valve with Max. 7bar limitation for the tank. The absence or misuse of safety valve may lead to damage of the tank

((32) 214 17 10) or E-mail

The safety valve shall be checked once per month according to manufacture’s guidelines.

Installation of water, air and power supply must be in accordance with the guidelines and wiring diagram (Part installation and service

points. 3 Installation).

- Main power cable 3x1,5mm2 300/500V according to 227IEC53

- Overcurrent protection C16

- Differential protection 30mA

- Properly grounding the unit ( the resistance of grounding wire shall be less than 4Ω).

All of the above standards are common requirments of any house,so that they shall not be difficult to meet.

- pH between 6,5 and 9,5

- Conductivity lower than 2500 [μS/cm w 20°C]

- Ammonia below 0.5 [mg / l]

- Nitrates less than 50 [mg/l]

- Chloride content below 250 [mg/L]

- Copper less than 2 [mg/l, maximum value without water color change)

- Sulfates less than 250 [mg/l]

- Hardness 60-500 [mg CaCO ]

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

F) The tank installation shall avoid direct metallic connections with water pipelines. In case that you have to use metal connection ( ie, copper or steel), please apply isolation devices ( ie,

G) Please select correct mounting position of the heat pump unit (See installation and service point 2: Select the installation location). Damages caused by mislocation will not be covered by warranty (ie, corrosive or polluted air invasion to the heat pump, not leveling foundation, location in an unheated room).

H) It is forbidden to disconnect power supply during heat pump operation (it means anytime when the tank is full of water). It will be the user’s responsibility for potential tank leakage problem due to absence of the electrical titanium anode anticorrosive protection. Long-term power down information is automatically saved in controller.

PA66 Gf30 - included as free accesories for heat pump, but also availabe from HEWALEX

offer lists)

3. Recycling and utilization

All components of our products are not harmful to environment. Most of them can be recycled. For the non-recyclable parts, please assure proper utilization.

During maintenance or servicing operation, please pay attention to environmental requirements for recovery, recycling and resuing of materials. Especially standards for arrangement of freon refrigerant based on the following documents:

DIN 8960 Freon refrigerant, requirments DIN EN 378 Installation of refrigerating system and heat pump - requirments about safety and environmental

R134a refrigerant in our unit is non-flammable, CFC-free and shares no harm to the ozone layer.

4. Environmental requirements

Operation instruction (for user)

1. General

Heat pump is a device that is able to effectively retrieve heat from the surrounding environment. Its refrigerant works as media and absorbs heat from the lower temperature side, then through work of compressor, it raises the temperature of media therefore to enable energy transfer to high temeprature side and finally realize the purpose of heating. Heat pump belongs to the field of new energy sources since averagely 70-80% of the energy for heating is taken from the environment.

The main advantage of the heat pump is that it has much lower power consumption comparing to the traditional ways of heating. If you compare it to an electrical heater, heat pump comsumes several times lower energe input to achieve same heating capacity. The main parameter to evaluate heat pump efficiency is called coefficient of performance (COP). Below is the explanation of how a heat pump works and how various factors can affect the efficiency of its work.

OPERATION HEAT PUMPS

Renowable energy

Air outlet

Air inlet

Refrigerant in a liquid state

Total thermal energy

Hot water inlet

Hot water outlet

Refrigerant gas

Compressor

Evaporator

Condensor

Expansion valve

Electricity

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

The COP is calculated by this fomula:

The COP value generally depends on the air inlet temperature which serves as the heating source, and the rated water temperature. The higher COP value, the better performance of the heat pump.

COP decreases as air inlet temperature dropping down, and due to the limitation of the physical character of media liquid, it will be not possible to retrieve heat from an over-low temperature source. The same applies to the heated water temperature. Increasing the target temperature of water or house heating will also result in reduction of COP value. Therefore, in order to get the highest efficiency of heat pump work, optimal conditions shall be assured by providing heat pump appropriately warm air as heat source, and avoiding set unnecessarily high target of heating temperature.

From economic point of view, since 45-50°C is the most comfortable water temperature for users, the heating target temperature of heat pump work shall be 50°C (This is the factory setting value in our heat pump, and heating operation will start whenever water temperature is lower than .

The essence of a heat pump is to work on the heat transmitted during phase change. So by using special refrigerant as the media liquid, heat pump will be able to retrieve heat from air even in the cold days and heats up water with not much input work. In a certain sense, heat pump is similar to a refrigerator, which removes heat from the cooling chamber to the outside environment. Only that the heat transfer direction of heat pump is reversed. Heat pump takes heat from the environment and transport to the water tank.

appropriate

45°C) In other heating devices, whose efficiency is not related with heated water temperature, a common

solution is to heat the tank to higher temperature and use a mixing valve to provide user water in the comfortable temperature. However, in the case of heat pump, such solution is not economically justified.

COP =

Heating capacity

Input power

2. Cost saving

One of the most important concerns of buying a heating device is the cost saving during usage. Especially if you are still using electrical heater or gas boiler for hot water even in summer time, then there is a good economical reason for you to change heating device to heat pump. While if comparing to solid fuel boiler (ie, coal boiler), we don’t take economic profit in usage as the overwhelming advantage of heat pump, simply because the difference in water heating cost is small

The following charts show the annual costs of water heating by using various automated devices.

. However the advantage lays on automatic operation and potential cost

saving in chimney renovation due to low parameter boiler (chimney damage caused by condensation of exhaust).

COP

When: 1) air inlet temperature increases

2) relative humidity is greater

3) target heating temperature of water lowers down

Parameter used for heat pump efficiency calculation is a medium COP = 3,84 (A15/W15-45, heat pump works all the year with ventilation air). If you make use of heat pump for cooling room, the payback of your investment will be even fa Because the cooling is totally for free since it is merely a byproduct from heat pump normal work.

ster, thus within 2-3 years.

500

1000

1500

2000

2500

3000

3500

PCWU 300SK-

2.3kW

gaz ziemny olej opałowy elektryczne

Annual cos

t calculated on:

(300l hot w

ater/day)

500

1000

1500

2000

2500

PCWU 200K-

2.3kW

gaz ziemny olej opałowy elektryczne

Annual cos

t calculated on:

(200l hot w

ater/day)

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

3. Heat pump structure

The compressor’s function in a heat pump system:

1) Increase the temperature and pressure of refrigerant for effective heat condensing to the heating side.

2) The efficiency of compressor significantly affect the total efficiency of heat pump system. Because 90% of total input electrical energy is consumed by compressor.

PCWU 200 and PCWU 300 series, we use high efficiency compressor from HIGHLY (a

Hitachi product). Power : 0.6KW. Compressor type: rotary.

In heat pumps from

Condensor

Heat exchanger in our heat pump adopts an advanced solution - with coils tightly wrapped outside the stainless steel tank. By enlarging the contact surface and using special lubricant to assist heat transfer, a structure can achieve as high as the traditional type which puts condensor inside tank (with direct contact with usage water). But since our structure has no direct contact between condensor and water, it is less sensitive to electrical faults and poor water quality. As a result, the effective lifetime of storage tank integrated with heat pump will be extended significantly.

silicon

dditionally with the well-insulated polyurethane foam, such efficiency

Danfoss expansion valve

Heat pumps from PCWU 200K-2.3kW and PCWU 300SK-2.3kW series are equipped with thermal expansion valve from Danfoss. The expansion valve in heat pump system is with respect to its function the counterpart of the compressor. It controls the amount of liquefied refrigerant streaming under high pressure towards the evaporator. The amount is limited in such a manner that only the amount of coolant can reach the evaporator which can be evaporate completely. In this way it is assured to take as much heat from the air as possible but also avoided reliably, that liquid coolant from the evaporator can enter the compressor and destroy the device (i.e. so called “beat by a liquid“). Closing or opening the expansion valve leads to pressure change thereby changes the evaporation temperature of refrigerant

. It can be illustrated to the situation that when you boil water on the top of Mount Everest (low atmospheric pressure), the water will begin to boil at . But if you use a pressure-cooker (which creat higher pressure on the water surface), the water boiling point will be increased to about Commonly speaking, if the compressor is the heart of heat pump, then the expansion valve can be seen as the brain.

when it enters

evaporator (the lower pressure the lower evaporation point, vice versa)

68°C

110°C.

Evaporator

During flowing trough the evaporator coils, refrigerant takes heat from air and accomplishes phase change (from liquid to gas). The heat will be released later through condensor to heat up water.

Due to the low heat capacity of air, we must use fan to force more air flow through the evaporator. The structure of our evaporator is similar as in the car cooler. The copper tube hydrophilic aluminum fin evaporator coil effectively extends the contact area with the air flow and increases heat exchange efficiency. Please be aware of that a dirty evaporator covered with dust, oil greese or leaves will harm the heat exchanging rate.

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

4. Controller instruction

4.1 Driver map

Parameter settings

Heat pump par.

Switch on heat pump [YES/NO, default YES] Tap water temperature heated by heat pump [10-55°C, default 50°C] Min. temp. wsitching heat pump on (T1) [-5-10°C, default 5°C]

Extra equip. par.

Heater E

Switch on heater [YES/NO, default YES] Temp. of water heated by heater when HP on [30-55°C, default 45°C] Temp. of water heated by heater when HP off [30-60°C, default 55°C] Block heater when heat pump switched on [YES/NO, default YES] Block heater when boiler D switched on [YES/NO, default YES - visible in the diagram No. 4,7,9]

Circulation pump [visible in the diagram No. 2,3,4,6,7,8,9]

Min. temp. switching on circulation pump [20-60°C, default 35°C] Circulation pump operation mode [INTERR/CONT., default INTERR]

Solid fuel boiler B [visible in the diagram No. 3,8,9 ]

Max. temp. switching off boiler pomp [10-85°C, default 65°C] Min. temp. switching on boiler pump [30-60°C, default 45°C] Difference in temp. switch boiler pump on [5-15°C, default 8°C] Solid fuel boiler priority [YES/NO, default YES]

Gas boiler D [visible in the diagram No. 4,7,9]

Max. temp. switching off boiler [10-85°C, default 65°C] Block boiler when heat pump switched on [YES/NO, default YES]

Time program

visible in the diagram No.

Switch on function of antilegionella [YES/NO, default YES] Realize protection via heater E YES/NO, default YES Realize protection via gas boiler D YES/NO, default YES - visible in the diagram No.

Passwords

User

Controller settings

Date and time Display

Backlight brightness [1-10, default 10] Backlight timeout [1-10min.,default 10 min.]

Sounds

Key sound [YES/NO, default YES] Dźwięk alarmów [YES/NO, default YES]

Port RS485

Transmission speed [default 115200] Physical address [default 255] Logical addres [default 65535]

Language

Polski English

Deutsch Manual control [only for servis] Measured parameters Info Program upggrading [only for producent]

Heat pump

Heater E

Circulation pump [ 2,3,4,6,7,8,9]

Gas boiler D [ 4,7,9]

Antilegionella

[ ]

[ 4,7,9]

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

4.2 To start the heat pump

By pressing the downward button, you can go to the subscreen with a internal structure diagram shown how heat pump works. To go back to the main screen, you can press the upward button or just wait for a few seconds with no operating.

Before start to use our controller, please understand the function of each button:

Then you will see the main screen shown as following. You can read from it the following information:

Kalibracja klawiatury

Prosze nie dotykac

sensorow

T1 T2 T3

11.2 C

14.5 C

10.7 C

Wt 13-02-19 08:26

Run OK

Kalibracja klawiatury

Prosze nie dotykac

sensorow:

Keyboard calibration

Please do not touch

the sensors

Reading

parameters.

Please wait....

Press this button to enter the menu of controller. You will see the option list for settings and information, which can be changed or viewed. Upward and downward buttons can change the cursor position to choose the option needed.

Acception button, used to confirm setting changes or to enter the desired control operation.

Escape button, used to return to the previous menu without saving setting changes.

Upward button, used to move to the upper position in the option list or return to the main screen from the subscreen of heat pump internal structure diagram.

Downward button, used to move to the lower position in the option list or go to the subscreen of heat pump internal structure diagram from main screen.

Info

Manual control Measured parameters

T1 T2 T3

11.2 C

14.5 C

10.7 C

Wt 13-02-19 08:26

Run OK

Number of the selected shema of installation

The flashing elements indicates the corresponding

components are under operation.

The numbers represent the locations of corresponding

temperature sensors

Date and time

Measured value of temp. sensors

Operation state or alarm

Addtional devices controlled by heat pump controller (please refer to the code letter)

T10

High pressure switch Condensor (heat exchanger)

Expansion valve

Evaporator (heat exchanger)

Compressor

Low pressure switch

Paramter settings Controller settings

01 Wt 13-02-19 14:24

13.2

62.1 C

Run OK

After power supplied, it takes few seconds to initiate the controller. The following messages will be displayed on the screen. Please do not touch any key at this time.

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

Attention: It is fobbiden to disconnect heat pump from power supply when the tank is filled with water. Absence of power supply will

dismiss safety heat pump and tank.protections for

4.3 Parameter settings

The first option in the menu list is Login (as shown below left). Press OK button. To perform any other options in menu, you must login first. The default password for users is 0000(Just press the OK button for 4 times). Your log in will be valid for 5 mintues under no operation circumstance.

After the login accepted, you can enter into the parameter setting menu. Move the cursor via arrow buttons, you can see the whole parameter setting option list.(as shown below).

Choose Heat pump par. (by OK and button) and you will see 3 parameters of heat pump. By pressing OK, the value with grey background will flash. Use arrow buttons to change the value and press OK again to confirm the value you choose.

YES - Heat pump will work untill the water in tank is heated to desired temperature. Heat pump operation can only be blocked by alarms or priority of other heating source.

NO - Heat pump switches off.

You can change the value of targeted water temperature for heat pump, range from 10 to 55°C.

Heat pump parameters

Press On/off button to switch on or switch off the device. Before switching off the device, a confirmation screen will be displayed. Press OK button and the device will be switched off.

Kalibracja klawiatury

Prosze nie dotykac

sensorow:

Do you really want to

turn off controller?

OK-YES ESC-NO

PG-426-P01

version: 01d

Parameter settings Controller settings

Heat pump par.

Parameter settings

Extra equip. par. Time program

Passwords

Parameter settings:

Time program Antilegionella

Tap water °C temperature

heated by heat pump

Heat pump par.:

Switch on heat pump

Heat pump par.:

YES

Enter password:

* * * *

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

You can set the required minimum inlet air temeprature for heat pump operation (in case of that you are using outdoor air as heating source).

Reference value of the combination with backup heating sources at difference air temperature boundary:

-5°C - electric heater (-5°C is the minimum allowed setting value for heat pump operation, though we do not recommend to let heat pump work with air inlet temperature lower than

0°C - Oil-fired boiler 4°C - LPG 8°C - natural gas

In case of combination with solid fuel boiler, heat pump will not turn on if you set higher priority to boiler .

If heat pump use duct air from ventilation system as heating source, it may work all around the year depending on the air temperature in ventilation pipes .

0°C, the wearing out of compressor will be faster due to poor working

condition)

Parameters of addtional devices

At the second place in parameter settings menu you can find Extra equipments parameters. Depending on what scheme you choose for installation, the following screens will be displayed:

Min. temp. C switching heat pump on (T1)

Heat pump par.

Heater E

Extra equipment par.

Heater E

Extra equipment par.

Circulation pump

Heater E

Extra equipment par.

Circulation pump Gas boiler D

Heater E

Extra equipment par.

Circulation pump Solid fuel boiler B

Scheme : 1 and 5 Scheme : 2 and 6

Scheme : 3 and 8 Scheme: 4 and 7

Scheme : 9a

Scheme: 9b

Heater E

Extra equipment par.

Circulation pump Solid fuel boiler B

Gas boiler D

Extra equipment par.

Circulation pump Solid fuel boiler B

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

Parameters of electrical heater E

The first parameter is to enable or disable electrical heater (as shown below left). By pressing OK.,YES will start flashing. Use arrow buttons to change YES to NO. Accept your change by pressing OK again. If you don’t want to save your change, cancel it by ESC button (parameter value will go back to previous setting). When the cursor stops flashing, your setting is saved and you can go to next parameter by arrow buttons.

The next is Temp. of water heated by heater when HP on (as shown below right). Electrical heater will heat the water together

with heat pump to this setting value, except priority is given to heat pump operation (please refer to parameter in the following: Block heater when heat pump switched on). Important is that this value shall not exceed the target value for heat pump, otherwise heat pump will have no chance to perform operation, because the electrical heater will take full responsibility for maintaining desired water temperature. Electrical heater works with a fixed hysteresis 2°C (temperature drop of water, which will activate heating operation). Such mode is generally called the PARTY mode - in case of more users than normal situation need to use hot water, parallel operation with electrical heater or other heating device will satisfy the larger demand.

The third paramter is Temp. of water heated by heater when HP off (as shown left below). If the heat pump is blocked by alarms( ie. threaten to system operation is detected, or air inlet temperature is too low), or heat pump is turned off manually through controller, electrical heater will heat water to the temperature defined by this parameter. However, if you give higher priority to gas boiler or solid fuel boiler, then electrical heater will not turn on even when heat pump is disabled (Boilers are more economical to than electricity).

The fourth parameter is Block heater when heat pump switched on (as shown right below). If you set it as YES, electrical heater will not switch on whenever heat pump is enabled.

The circulation pump works according to parameters. The first is the minimum temperature switching on circulation pump (this temperature refers to T2 top tank temperature). It ranges from

The second one is Circulation pump operation mode. You can set INTERR or CONT. operation. At INTERR mode, the pump will work for 5mins with every 10min interval. At CONT. mode, the pump will work all the time.

20 to 60°C. The factory setting is 35°C.

The last parameter is Block heater when boiler D switched on (as shown right). If you are using a scheme intergrated wall-hung boiler (automatic boiler). When heat pump is disabled (by alarms or low air inlet temperature or manually off), the boiler will be automatically turned on and electrical heater will be blocked.

Parameters of circulation pump

Switch on heater

Heater E:

YES

Temp. of water C heated by heater when HP on

Heater E:

Temp. of water C heated by heater when HP off

Heater E:

Block heater when heat pump switched on

Heater E:

YES

Block heater when boiler D switched on

Heater E:

YES

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

Parameters for solid fuel boiler B

If a solid fuel boiler is combined in system, you can set the Max. temp. switching off boiler pump (as shown below left). Possible range lays in . This parameter prevents the tank from over heating and excessive pressure.

The second parameter is Min. temp. switching on boiler pump (as shown below right). Here the setting temperature refers to boiler outlet water temperature T4 (range 30-60°C, factory setting 45°C).

10-85°C (factory setting 65°C)

The next is Difference in temp. switch boiler pump on. Factory setting is . This parameter refers to the temperature difference between T4 and T3 ( the temperature of boiler coil in the tank) or T4 and T2 ( only in scheme 8, when the boiler coil is mounted top in tank and operate upon top tank temperature).

The boiler pump starts only when all of the above three conditions are satisfied.

The last parameter is Solid fuel boiler priority (as shown below right). If you choose YES, then priority is given to solid fuel boiler over all the other devices (including heat pump, electrical heater, automatic boiler). When the above conditions are met to turn on solid fuel boiler, all the other devices will be turned off. This option is to achieve the highest heating efficiency with the lowest cost.

8°C (possible range for setting is 5-15°C)

Parameters of gas boiler D:

The settings in this section apply to gas boiler or any other type automatic boiler. The first parameter is Max. temp. switching

off boiler, which is similar as in section Parameters of solid fuel boiler B. It falls into function whenever heat pump is blocked by

alarm or disabled manually. In case of parallel operation of gas boiler together with heat pump (the next parameter Block

boiler when heat pump switched on is set as NO), gas boiler will work till the water is heated to this value, which equal to Tap

water temperature heated by heat pump minus hysteresis temp. switch heat pump on. For example, if the Tap water

temperature heated by heat pump is set as 50°C, and the hysteresis temp. switch heat pump on is 5°C, then the desired water

temperature for gas boiler heating is 45°C. When water temperature in the tank falles to below 45°C, heat pump and gas

boiler will be activated for heating, gas boiler will work to 45°C, and heat pump will continue heating till water is heated to

50°C. It is another possibility to realize PARTY mode - when there is larger demand for hot water, gas boiler will be enabled as

parallel heating source.

Max. temp. C switched off boiler pump

Solid fuel boiler B:

Min. temp. C switching on boiler pump

Solid fuel boiler B:

Difference in C temp. switch boiler pump on

Solid fuel boiler B:

Solid fuel boiler priority

Solid fuel boiler B:

TAK

Max. temp. C switching off boiler

Gas boiler D:

Block boiler when heat pump switched on

Gas boiler D:

TAK

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

Time program

Setting operation of time program for all devices are the same. When you enter time program setting screen, you can see 3 lines that symbolizing 3 situations: Mo-Fr (Monday to Friday), Sa (Saturday) and Su (Sunday). You can define the working time at hourly interval in different days of week. To make change, firstly you need to move the arrows though arrow buttons to the hour you want to change, and then press OK button to add or remove this hour from device operating period. White overstriking means at this hour the corresponding device is enabled, otherwise it means device will be blocked.

Antilegionella

This option realizes control for anti-legionella function. More about legionella bacteria and prevention method can be found in part 5. Antilegionella.

You can Switch on function of antilegionella by choosing YES.

The tank will be overheated at Sunday night, and last

maximumly to Monday morning 6:00. Antilegionella

operation will be accomplished earlier if the water is heated

to 70°C.

Depending on which scheme you are using, antilegionella operation can be realized by electrical heater E or gas boiler D or both of them. (as shown below)

Attention:

If young children need to use hot water just after antilegionella operation, it is suggested to instal mix valve to avoid burn from over heated water.

Heat pump off from 0:00 to 1:00.

By pressing OK button, overstriking will be added, then heat pump will work at this hour.

Passwords

The user can change passwords to prevent wrong settings, for example, by small children.

Firstly, please press the OK button, enter your new password and confirm it by entering new password again. After pressing OK again, a confirmation message will be displayed on screen.

If you forget your password, resetting can be made by installer or HEWALEX service. However, such service may require payment.

Heat pump:

Mo-Fr Sa Su

00-01

0 6 12 18 24

Switch on function of antilegionella

Antilegionella:

YES

Realize protection via heater E

Antilegionella:

YES

Realize protection via heater E

Antilegionella:

YES

User

Passwords

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

4.4 Controller settings

The users have possibility to change settings of controller, like date and time, display and sounds.

Date and time

Move the pulsing cursor to the value you want to change, increase or decrease value by arrow buttons and confirm it by pressing OK.

Display

The user can increase or decrease brightness by change value of Backlight brightness (range 1 to 10, 10 the brightest). And set in the time to turn off backlight under non-operation situation.Backlight timeout

Sounds

In this option, the user can turn on or off key sound and alarm sound by choosing YES or NO (as shown below).

Port RS485

It is used to retrieve data or control the device via an external controller. The values of Transmittion speed, Physical address and logical address depend on the host request.

Languages

Our controller provides multi-language access(Polish, English and Deutsch).

Date and time

Controller settings

Display Sounds

Language

Controller settings

Sounds Port RS485

Data i czas

Date and time:

YY.MM.DD DT HH:MM

13-05-24

Fr 12:20

Backlight brightness

Display:

Backlight min timeout

Display:

Sounds:

YES

Sounds:

YES

Key sound

Alarm sound

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

4.4 Measured parameters

The value of all measurable parameters can be read from Measured parameters in main menu. Here you can check out

real values of all temperatures sensors in system and states of protection swtich as well as external controller. During normal operation, LP (low pressure) swtich, HP(high pressure) switch and Ext. ctrl. (external controller) shall be closed. When LP or HP is open, it indicates either pressure failure or switch failure.

4.5 Info

In Info, you can find out the software version information for both panel and executive module.

6. Equipment maintenance

For maintenence details please refer to section installation and service point 5: Maintenance. The users shall remember to check the safety valve periodically according to guidance from valve producer, and clean the air inlet filter to heat pump.

As a result, The least expensive and most effective prevention method is perioticaly heating up water to 70°C. In heat pumps which integrated with water storage tanks, like PCWU 200 and 300 series, our controller provides Antilegionella function. In antilegionella operation, the tank water will be overheated every week between midlight of Sunday to 6:00 Monday morning. The user can choose to use electrical heater or gas boiler to heat water up to 70

If the water stored in tank has not been used for a few days (for example, after returning from vacations), it is also recommended to overheat the water before usage .

°C (see more details in section 4.2 Parameter settings,

Antilegionella).

Attention:

If young children need to use hot water just after antilegionella operation, it is suggested to instal mix valve to avoid burn from over heated water

Picture: http://www.cruiselawnews.com/tags/legionella/

5. Antilegionella

Legionella is common in aquatic systems. It acquired its name after a July, 1976 outbreak of a then-unknown "mystery

disease" sickened 221 persons, causing 34 deaths. Patients with Legionnaires' disease usually have fever, chills, and a

cough, which may be dry or may produce sputum. Legionellosis is an infectious disease declared by the Ministry of Health. In

case of inadequate treatment it can lead to death.

The most common sources of Legionella and Legionnaires' disease outbreaks include domestic hot water systems. Research shows 32 to 42 °C (90 to 108 °F) is the ideal growth temperature range for Legionella bacteria. At 60 °C (140 °F) ,90% die in 2 minutes. Above 70 (158 °F), Legionella dies almost instantly.

Most of the known cases are reported in the Mediterranean, but

occasionally also in Poland.

°C

T1 T2 T3

11.3 C

14.5 C

10.7 C

Measured parameters:

T8 T10 LP switch

13.7 C

62.2 C

Closed

Measured parameters:

HP switch Ext. ctrl.

Closed Closed

Measured parameters:

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

8. GSM service

By purchasing an GSM modelm and paying for annual service (the actual cost please refer to our internet webpage

you will be able to extend the controlling of device to mobile version. After login to your profile, you can change controller settings, check the real working state of device or view the statistics on performance. The unique advantage of GSM service is 24-hour monitoring of device and first time alarm information. GSM service requires access of internet. More information can be found in our webpage at

or via contaction with HEWALEC heat pump

technical department.

Picture in the right: one of the screens you can see after login of user profile.

www.hewalex.eu),

hewalex.eu

7. Operating FAQ

Basing on our service experience, a number of most frequently asked questions relating to heat pump operation are listed below:

1) Which is better? To operate heat pump at night when the tariff is lower or operate in the day with warmer air inlet? Normally

there is no significant difference in the case of cost. Because the lower electricity price in the night is also accossiated with lower air inlet temperature, which will decrease heat pump efficiency. However, if you are using duct air from ventilation system for heat pump, operation in the night could be cheaper.

2) Whether it is possible to make use of outlet air from heat pump for room cooling? Yes, it is possible. Only that, if the distance to the room is long, an additional fan shall be installed to assist air flow. The pipes shall meet ventilation requirments and at lest once per year, antibacterial operation shall be implemented to the evaporator.

3) What is condensate? Condensate here refers to the water which has been removed from cooled air passing through the evaporator. It is normal as heat is retrieved from air. And it is most desirable effect since the phase change of water releases a large amount of heat to the refrigerant in evaporator. So, the COP of heat pump does not only rely on air temperature but also humidity.

4) Whether heat pump PCWU 200 or PCWU 300 can be connected to ventilation system (for example, operate with duct air from ventilation)? Yes, because of low air flow volume (nominal value

5) Is it allowed to unplug the heat pump from power supply during winter or when I leave for vacation? It is not recommended in

order to protect the tank from corrosion with active titanium anode, which relies on main power supply (but its power consumption is very low). In such circumstance, the user may turn off heat pump by controller but please keep main power cable plugged.

6) Why still equip magnesium anode in the tank? Do I need to replace it periodically? We use both magnesium anode and titanium electrical anode to provide full protection of tank for our customer. Even in case of main power supply or titanium anode failure, the tank is still under protection. The magnesium anode shall be checked every 2 years, but since titanium anode is applied, the magnesium anode shall be able to be functional for at least 5 years without replacement.

7) How long it takes to heat up water in 200L and 300L version (water from 15 to 45°C, air inlet 20°C)? If you are talking about heating water by heat pump ( only, then 200L water takes about 3 hrs, and 300L water takes about

4.5hrs.

250-350 m³/h), ventilation air is enough to meet heat pump demand. Moreover, since the duct air is warmer than outdoor, heat pump will be able to work all around the year with an average COP close to 4.

2,3kW heating capacity)

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

Installation service instruction (for installers)

1. Storage and transportation

During storage, heat pump shall be protected with carton box as the factory package and prevent from water or flood. Storage temperature shall be within -10 do 45°C. Temporarily leaning heat pump to max 45

foil and

° is acceptable, but in such case the heat pump must stand still for at least 1hr before operation. It is safer to transport the heat pump in vertical postion with max. 30° bias.

2. Installation location selection

During transportation or lifting, heat pump must be placed on the pallet. In case of manual handling, it is suggested to put the heat pump on a pallet and fasten with straps to ensure more stable movement. Please be ware of that, dent could happen as consequence of improper handling, especially on the upper part of the unit.

60°

The device is designed for installation in heated rooms.

Air inlet temperature shall be within range 0-40°C. Higher or lower temperature will be result in faster wear out of the device.

Condensate water shall be removed by extended pipe or tube to the drain. A siphon can avoid unpleasant scents. Condensate drain is gravity flow, please make sure the application level is to discharge condensate smoothly.

In case of vertical air pipe installation, a minimum ceiling height (1800mm for 200L version, 1920mm for 300L version) shall be assured. And the pipes shall be easily removed (for example, can be lift up at least 100mm).

In case of horizontal air ventilation, it is necessary to use 90° elbow pipe with 150mm inner diameter. The minimum ceiling height is 200mm for 200L version and 2100mm for 300L version. And the pipes shall be easily removed (for example, can be lift up at least 100mm).

If you install the device in a room without closed air pipelines, the minimum volume of this room shall be at least 30m³ and good ventilation is required. Such installation has generally lower efficiency of heat pump operation due to the mixing of inlet and outlet air.

T>0°C

T air inlet

0-40°C

Condensate

Level

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

The foundation of heat pump must be able to support the whole device even when the tank is filled with water.

For 200L version, it will be 290 kg, and for 300L version, 402kg.

It is forbidden to install the device where flammable gas is stored or the inlet air could contain such substance. Violation of this request could cause fire.

Heat pump cannot use air from or installed at a place, where contains poisoning or corrosive substances. This rule also applies to the air from chlorination swimming pools. High concentration of chlorine can cause perforation of heat pump evaporator.

If the air used by heat pump is high in fat or greasy substances (for example, air from industrial kitchens), before air flows in, carbon filter shall be implemented to prevent efficiency deduction caused by fat accumulating on evaporator.

For similar reason, the inlet air shall be clean from high concentration of dusts as well.

290/

402 kg

GAS

Tłuszcze

Pyły

Heat pumps from PCWU 200 and PCWU 300 series provide possibility of connection to mechanical ventilation system. If the air outflow from central ventilation system is between 250-350m³/h, then it is enough for heat pump. Addtionally,

cool down the air into the house for 5 to 10

in summer days heat pump can °C comparing to outdoor temperature. It is without any additional cost. The cooling capacity generally depends on air flow rate - for example 250m³/h can provide longer cooling time so that higher cooling capacity than 350m³/h.

Connection to mechanical ventilation system

Winter mode - Heat pump works with a pre-cooled air ducting from indoor. But it is still warmer than outdoor air. From heat

recovery point of view, it is attractive heat source for heat pump. After heat pump, air will be exhausted outside the building. Summer mode -Heat pump intakes air from outdoor and release cooled air to indoor. In this mode, the air for heat pump is

from outdoor. Due to hygiene concerns, we cannot operate heat pump with closed air circult ( it means intake and exhaust air both from indoor).

flap

Bypass damper (Tee pipe)

Switched to outdoor exhaust

Exhaust air to outdoor

Exhaust air from the room

Outdoor air

flap

Supply air to the room

Exhaust air to outdoor

Exhaust air from the room

Outdoor air

Bypass damper (Tee pipe)

Switched to cooling room

Winter mode Summer mode

Supply air to the room

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

By connecting heat pump to central ventilation system, the user can make use of output control from heat pump controller. Raley RL01 can provide 230V output to run the central ventilation.

Through controller, the user can set working time of heat pump and ventilation. The ventilation time shall cover heat pump operation period, this is to assure enough air flow supplied to heat pump. In case of heat pump operates when ventilation fan is off, high resistance in pipelines could cause over low air flow to heat pump. In the worst case, it can trigger low pressure alarm of heat pump.

3. Installation

3.1 Connecting heat pump with other devices

apply to model PCWU 200K-2.3kW and PCWU 300SK-2.3kW

scheme 1

Symbols:

mixing valve ie.ESBE VTA322 (3/4") [NO. in katalog. HEWALEX 70.70.00]

safety valve max. 7 bar included in factory configuration AKE WYA-20 3/4"

expansive vessel min. 12L ie. ELBI D18 [NO. on katalog. A202L24]

one way valve

Depending on the scheme and heat pump model, there are various possibilities to connect other devices to heat pump. In the controller, external devices are defined as following:

B - solid fuel boiler (ie, coal boiler, fireplace with water jacket) C- circulation pump D - automatic boiler (ie. gas, oil fired or electrical boiler) E - Electrical heater 1.5kW equipped in the tank (factory configuration) F - pump for solid fuel boiler SOL - solar collectors

Connecting external devices to heat pump automation

After removing the aluminum front panel and the black cover, you will see the electric carbinet of heat pump,where you can find a terminal block reserved for external devices (more details in section 5.2 Installation and service instruction).

In the following, various schemes are described.

11 12

234

678 9

OUT C

IN external controller

Position in terminal block:

Sensor T1 AT (ambient temperature) is connected to terminal number 5 and 6. It shall be mounted at the place where can detect real inlet air temperature for heat pump. For example, on the outside wall when air is taken from outdoor, or inside the ventilation pipe when duct air is used.

OUT F

hot water output

condensate discharge

ɸ21mmflexible hose inner

connector 3/4"

in case of using metallic pipes, isulation adapter shall be applied (ie. adapter PA66 GF30)

connector 3/4"

in case of using metallic pipes, isulation adapter shall be applied (ie. adapter PA66 GF30)

electrical heater 1.5kW

factory configuration

cold water input

air

siphon before sewer

connected to safety valve

ambient temperature sensor

The diameter of all connections to the tank are

(PCWU 200K-

2.3kW model is with one coil inside for boiler, and w PCWU 300SK-2,3kW with 2 coils inside for boiler and solar collector. The insulation adapter (as shown right) shall be used to avoid direct connection between tank and metallic pipes.

¾’’. Each coil

inside the tank provides 1m² heat exchange area

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

scheme 3

( )difference to scheme 2 is solid fuel boiler application

apply to model PCWU 200K-2.3kW and PCWU 300SK-2.3kW

scheme 2

(difference to scheme 1 is circulation pump application)

apply to model PCWU 200K-2.3kW and PCWU 300SK-2.3kW

Symbols:

water pump or circulation pump

11 12

234

678 9

OUT D

IN external controller

Position in terminal block:

Circulation pump can be connected to terminal 1 and 2. Then the pump will be controlled by controller (relay RL02).

Circulation pump with power more than 100W shall be drived by additional contactor.

11 12

234

678 9

OUT D

IN external controller

Position in terminal block:

Boiler pump can be connected to terminal 3 and 4.

Temperature sensor T4(the boiler temperature BT) can be connected to terminal 7 and 8. Sensor should be mounted to place where it can indicate real output temperature from boiler.

Then

the pump will be controlled by controller (relay RL09) Boiler pump with power more than 100W shall be drived

by additional contactor.

scheme 4

(difference to scheme 2 is automatic boiler application)

apply to model PCWU 200K-2.3kW and PCWU 300SK-2.3kW

Controlling of automatic boiler can be realized in 2 ways:

1. Use terminal 9 and 11 to turn on/off boiler by closing or opening one corresponding connection inside boiler.

2. Turn on/off bolier by giving corresponding temperature values simulated by resistors R1 and R2. Reference values of resistors are listed in next page. Attention! In such application, the original temperature sensor from boiler must be disabled.

hot water output

condensate discharge

flexiable hose inner ɸ21mm

connector 3/4"

in case of using metallic pipes, isulation adapter shall be applied (ie. adapter PA66 GF30)

connector 3/4"

in case of using metallic pipes, isulation adapter shall be applied (ie. adapter PA66 GF30)

electrical heater 1.5 kW

factory configuration

cold water input

air

siphon before sewer

connected to safety valve

ambient temperature sensor

water circulation

hot water output

condensate discharge

flexible hose inner ɸ21mm

connector 3/4"

in case of using metallic pipes, isulation adapter shall be applied (ie. adapter PA66 GF30)

connector 3/4"

in case of using metallic pipes, isulation adapter shall be applied (ie. adapter PA66 GF30)

electrical heater 1.5kW

factory configuration

cold water input

air

siphon before sewer

connected to safety valve

ambient temperature sensor

water circulation

automatic boiler D

(ie. gas, oil fired or electrical boiler)

solid fuel boiler B

boiler pump F

hot water output

condensate discharge

flexible hose inner ɸ21mm

connector 3/4"

in case of using metallic pipes, isulation adapter shall be applied (ie. adapter PA66 GF30)

connector 3/4"

in case of using metallic pipes, isulation adapter shall be applied (ie. adapter PA66 GF30)

electrical heater 1.5kW

factory configuration

cold water input

air

siphon before sewer

connected to safety valve

ambient temperature sensor

water circulation

boiler temperature sensor

11 12

234

678 9

OUT C

IN external controller

Position in terminal block:

OUT F

OUT C

OUT F

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

ZPS 18e-01

solar collector

Boiler manufacturer

Resistor R1 [kΩ] Temp. 20 ¸ 30°C

Resistor R2 [kΩ] Temp. 70 ¸ 80°C

Boiler manufacturer

Resistor R1 [kΩ] Temp. 20 ¸ 30°C

Resistor R2 [kΩ] Temp. 70 ¸ 80°C

Acv

12,0 ¸ 15,0 1,5 ¸ 2,0

Brotje Heizung

8,0 ¸ 12,5 1,2 ¸ 1,7

Ariston

8,0 ¸ 12,0 1,5 ¸ 2,0

Buderus

8,0 ¸ 12,5 1,2 ¸ 1,7

Beretta

9,0 ¸ 14,0 1,8 ¸ 2,0

De-Dietrich

10,0 ¸ 15,0 1,8 ¸ 2,3

Ferolli

8,0 ¸ 12,5 1,2 ¸ 1,7

Vaillant

3,5 ¸ 3,3 0,4 ¸ 0,6

Junkers

10,0 ¸ 14,8 1,9 ¸ 2,4

Viessmann (New boilers)

9,0 ¸ 15,0 1,5 ¸ 1,8

Stiebel Eltron

10,0 ¸ 15,0 1,0 ¸ 1,5

Viessmann (Old boilers)

0,54 ¸ 0,56 0,64 ¸ 0,66

Termet

10,0 ¸ 11,0 1,4 ¸ 1,8

Wolf

5,0 ¸ 7,0 1,8 ¸ 2,6

Reference resistance values to simulate temperature for boilers from different brands:

scheme 5

(there is no possibility to control solar collector via heat pump controller

settings as in scheme 1)

apply to model PCWU 300SK-2.3kW

scheme 6

()there is no possibility to control solar collector via heat pump controller

settings as in scheme 1

apply to model PCWU 300SK-2.3kW

hot water output

condensate discharge

ɸ21mmflexible hose inner

connector 3/4"

in case of using metallic pipes isulation adapter shall be applied (ie. adapter PA66 GF30)

connector 3/4"

in case of using metallic pipes isulation adapter shall be applied (ie. adapter PA66 GF30)

electrical heater 1.5kW

factory configuration

cold water input

air

siphon before sewer

connected to safety valve

ambient temperature sensor

ZPS 18e-01

solar collector

hot water output

condensate discharge

flexible hose inner ɸ21mm

connector 3/4"

in case of using metallic pipes isulation adapter shall be applied (ie. adapter PA66 GF30)

connector 3/4"

in case of using metallic pipes isulation adapter shall be applied (ie. adapter PA66 GF30)

electrical heater 1.5kW

factory configuration

cold water input

air

siphon before sewer

connected to safety valve

ambient temperature sensor

water circulation

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

ZPS 18e-01

solar collector

ZPS 18e-01

solar collector

boiler pump F

hot water output

condensate discharge

flexible hose inner ɸ21mm

connector 3/4"

in case of using metallic pipes isulation adapter shall be applied (ie. adapter PA66 GF30)

connector 3/4"

in case of using metallic pipes isulation adapter shall be applied (ie. adapter PA66 GF30)

electrical heater 1.5kW

factory configuration

cold water input

air

siphon before sewer

connected to safety valve

ambient temperature sensor

water circulation

solid fuel boiler B

scheme 7

)

(there is no possibility to control solar collector via heat pump controller

settings as in scheme

apply to model PCWU 300SK-2.3kW

automatic boiler D

(ie, gas, oil fired or electrical boiler )

hot water output

condensate discharge

flexible hose inner ɸ21mm

connector 3/4"

in case of using metallic pipes isulation adapter shall be applied (ie. adapter PA66 GF30)

connector 3/4"

in case of using metallic pipes isulation adapter shall be applied (ie. adapter PA66 GF30)

electrical heater 1.5kW

factory configuration

cold water input

air

siphon before sewer

connected to safety valve

ambient temperature sensor

water circulation

scheme 8

(

there is no possibility to control solar collector via heat pump controller

settings as in scheme

apply to model PCWU 300SK-2.3kW

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

3.2 Air supply

scheme 9

(there is no possibility to control solar collector via heat pump controller

settings as in scheme 1)

apply to model PCWU 300SK-2.3kW

ø15 0

The air into heat pump is sucked in by a fan mounted in front of evaporator. The resistance in air channel cannot exceed fan power. So the maximum length of pipes from both air inlet and outlet sides is 5m (straight pipes,

150). Every elbow shall be counted as equal to 2m straight piple.

If the inner diameter of pipe is larger, then longer pipe can be connected. Another way to assist air flow is to use addtional fan by connecting it to terminal RL07.

For model PCWU 300SK-2.3kW, air filter is included, which shall be regularly cleaned. But for model PCWU 200K-2.3kW, due to space limitation, there is no air filter in heat pump.

The air filter is inserted into heat pump and located before evaporator. So that we can keep evaporator clean and maintain highest efficiency. And the air filter can be easily removed from heat pump for cleaning.

To avoid mixing exhaust air (cold) into sucked air(warm), which can decrease heat pump efficiency, it is suggested to keep a minimum distance as 50cm between the air sucking terminal and exhausting terminal. And if ventilation grilles are applied at pipe terminals, please keep opposite orientation of their leaves. Please be careful not to install air outlet terminal above inlet.

HEWALEX offers components for installation: flexible air pipe, tee pipe with bypass damper, and air blow nozzle (for cooling).

The to tal res istan ce of air s upply p ipe inc ludin g addi tional v entil ation p ipeli ne(if a ny) sha ll not ex ceed 40 P a. Thus we c an conn ect max imum 5m s traig ht pipl e(ø15 0) for eac h side .

Exa mple of ai r pipe co nnect ion usi ng bypa ss damp ers (me chani cal tee pi pes).

solid fuel boiler B

boiler pump F

automatic boiler D

(ie, gas, oil fired or electrical boiler )

hot water output

condensate discharge

flexible hose inner ɸ21mm

connector 3/4"

in case of using metallic pipes isulation adapter shall be applied (ie. adapter PA66 GF30)

connector 3/4"

in case of using metallic pipes isulation adapter shall be applied (ie. adapter PA66 GF30)

electrical heater 1.5kW

factory configuration

cold water input

air

siphon before sewer

connected to safety valve

ambient temperature sensor

water circulation

bolier temperature sensor

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

3.3 Power supply

Power supply to heat pump shall be 230V and well grouned. Należy zwrócić uwagę, że tzw. zerowanie nie jest poprawnie wykonanym zerem ochronnym.

C16 protection shall be included in installation and use a seperate circult for heat pump only.

The current leakage protection standard is 30mA.

Condensate water from cooled air must be discharged to the drain. The flow guidance pipe can be flexible plastical hose hooked on the condensate outlet connection on heat pump. The condensate drain is gravity flow, so the application must ensure free flow of water. If the condensate pipe is connected to the sewer, siphon shall be applied to avoid unpleasant scent. The quantity of condensate depends on heating time and air humility - normally during one heating cycle, condensate can be a few liters.

21mm

4. External controller

3.4 Condensate discharge

11 12

8 9

OUT D

IN external controller

There is possibility to control heat pump with an external controller. Terminal 12 and 13 are reserved for external controller connection. At factory configuration, 12 and 13 is bridged. When this bridge is open, on heat pump controller will Ext OFF at lower right corner. In heat pump controller menu, option External controller, the user can define which heating device to be controlled by external controller.

5. Maintenance

5.1 Air filter and air supply pipe

Air filter must be cleaned every 2-3 months to avoid efficiency decrease of heat pump.

In model PCWU 300SK-2.3kW, filter is included in factory configuration. To clean it, you simply need to pull out the filter from top side of heat pump and reinsert it back to original position after cleaning.

In model PCWU 200K-2.3kW, due to space limitation, filter cannot be integrated into heat pump. It is suggested for the users to install external filter at air inlet side in accordance with the guidance in section 3.2 Air

supply ( installation and service instruction).

Dirty filter will deduct air flow and lead to decrease of heat pump efficiency.

Cleaness of air pipe is also important, especially if you use heat pump for room cooling. Every 2 years, the whole channels shall be cleaned with antibacterial cleasers. Moisture inside pipe can also occur if the air flow is warmer than the environment( in application that intake air from outdoor and the device is located in basement) - isulated air pipe can decrease such risk.

OUT C OUT F

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

During normal working, the green LED on the titanium anode control board (the one in white circle as shown right) is lighting.

Checking of titanium anode shall be conducted every 2 years. If the green LED doesn’t light on, potential failure of titanium anode is indicated.

5.2 How to remove the top cover in order to clean the evaporator?

Unscrew these 2 screws as shown on picture(cross type), and lift up the black cover on the top for a little bit.

Remove the aluminum panel forward and put it aside. Please use buffer material to avoid scratching the surface of device.

Remove those 4 screws connecting the top cover with the tank, as well as the golden grounding screw.

Prepare enough buffer length

(you can loose the wire-lockers and push cables inside into device) before remove top cover.

of sensor

cables and power cable

Remove the top cover from topside and you will see the black box containing control board.

Evaporator shall be cleaned dryly, avoid damage to the wings during operation. Be careful not to hurt your hands by the sharpe edges.

Depending on what kind of dirt on evaporator, the cleaning methods are different:

- dusts and cobwebs : vacuum cleaner

- fat, greasy substances: cleaning agents (for example,

If you are using heat pump outlet air for room cooling, it is particularly important to clean the evaporator every 2 years with antibacterial and mould proof agents (for example, Coil Disinfectant).

When remounting the front panel, please make sure the panel sit into the black bracket at the bottom (as shown right).

Coil-Rite or Foam-A-Coil).

5.3 Magnesium anode checking

The water tank is protect generally by the electrical titanium anode, so that the wearing out of magnesium anode will be much slower than normal case. But every 2 years, magnesium anode status shall be checked.

If its smallest diameter is lower than 1/3 of the intial diameter (10mm), it means magnesium anode needs to be replaced with new one.

5.4 Titanium anode checking

the left picture: titanium anode rodp the right picture: control board of titamium anode

is marked out

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

5.5 Emptying and cleaning of the water tank

1. Turn off the code water inlet and disconnect the main power supply.

2. Empty the water in the tank via drainage connection in the bottom.

3. To clean the sludge accumulated in the botton of tank, you can connect the high pressure pump (for example, Karcher’s product) to the ciculation connection or hot water output connection. With high pressure water, sludges will flow out from drainage connection.

6. Security of heat pump

6.1 Evaporator defrosting

Evaporator deforsting operation aims to clean evaporator from being covered by frost. Because ice on evaporator surface will disturb air flow and reduce heat exchanging area between refrigrant and air source, which will consequently decrease heat pump efficiency.

Defrosting is driven by temeprature sensor (T8) mounting on the evaporator. If the real value of T8 is lower than setting value , and the compressor working time is longer than defined defrosting interval, defrosting operation will be started. Defrosting will be ended when either T8 has reached desired temperature or maximum defrosting time is expired .(details in 7.2.2 Parmeters of heat pump, installation and service instruction)

Defrosting mode is decided by ambient temperature (equals to inlet air temperature)(T1):

1. If the ambient temeprature (T1) is

2. If the ambient temperature (T1) is lower than defrosting ending temperature plusing 2 , defrosting operation will be carried out by compressor work. A 2-way valve in system will change the refridgerant flow direction and guide the hot refridgerant after compressor to go into evaporator for defrosting.

In factory settings, the first defrosting mode will be working when ambient temperature is above 15

2°C higher than defrosting ending temperature, defrosting operation does not require

compressor work (during defrosting, water heating will be stopped). The air sucked into heat pump will heat up the evaporator. Defrosting will be ended when either T8 has reached desired temperature or maximum defrosting time is expired.

Defrosting will be ended when either T8 has reached

desired temperature or maximum defrosting time is expired.

°C. At such temperature,

frost can happen only when the air flow is too low, in which case, evaporator cannot retrieve enough heat or will even condense heat to air which leads higher temperature drop on evaporator than in normal case.

°C

6.2 Overheating protection for the tank

If the water temperature in the tank is over 85°C, a mechanical security switch will cut off main power supply for the whole unit. This is important because, for example, if controlling of electrical heater is failed then the heater will not be able to switch off. But when water temperature exceeds 85

°C, mechnical security will

switch off power supply so that overheating is prevented. Attention: If solar collector is included in system, please make settings correctly to avoid water being over heated than 85°C.

Zdj. Zabezpieczenie za wysokiej temperatury zasobnika

6.3 Anti-freezing protection

If the water temperature in the tank (T2) drops to lower than

. In such case, even if the heater is blocked by settings in controller (see 7.2.3 parameters of

addtional devices, it will still turn on.

4°C, electrical heater will be on to heat up water to 6°C. This is to

protect water tank being freezen

Zdj. Parowacz pokryty lodem

Zdj. Parowacz w czasie normalnej pracy

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

6.4 Function of switching off heat pump automatically when COP is low

When air inlet temperature is lower than the setting value, heat pump will be blocked to avoid low efficiency work. This function is designed to have an intelligent system, which can automatically choose the most economical source for heating.

Reference value of the combination with backup heating sources at difference air temperature boundary:

-5°C - electric heater (-5°C is the minimum allowed setting value for heat pump operation, though we do not recommend to let heat pump work with air inlet temperature lower than 0°C, the wearing out of compressor will be faster due to poor working condition)

0°C - Oil-fired boiler 4°C - LPG 8°C - natural gas In case of combination with solid fuel boiler, heat pump will not turn on if you set higher priority to boiler (see

point 7.2 parameter settings of addtional device, solid fuel boiler).

If heat pump uses duct air from ventilation system as heating source, it may work all around the year depending on the air temperature in ventilation pipes .

installation and

service instruction

6.5 Compressor protection

When heat pump turns on, the compressor will start 1mins after fan. Same as when turning off heat pump - firstly compressor turns off, and fan will work 1min longer.

Under normal operation, compressor on and off cannot be too frequently, it shall have at least 8-10mins time interval (Hysteresis temp. switch heat pump on will affect this interval time of compressor operation). To avoid too frequently on/off, controller will maintain minimum 3min(180s) interval before compressor can restart. In this time, countdown will be displayed on screen:STOP 180, 179,178...

8. Controller instruction (extended version for installers)

Parameters included in user version will not be repeated here.

8.1 Driver map

Installation scheme [1-9]

Heat pump par.

Switch on heat pump [YES/NO, default YES] Tap water temperature heated by heat pump [10-55°C, default 50°C]

Min. temp. wsitching heat pump on (T1) [-5-10°C, default 5°C]

Hysteresis temp. switch heat pump on [2-10°C, default 5°C]

Fan operation mode [MAX / MIN / DAY/NT, default MAX] Delay between defrostiong cycles [30-90 min,default 45 min] Defrosting starting temperature [-30 - 0°C, default -7°C] Defrosting ending temperature [2-30°C, default 13°C] Max. defrosting duration [1-12 min, default 8 min]

Extra equip. par.

Heater E

Circulation pump [visible in the diagram No. 2,3,4,6,7,8,9]

Min. temp. switching on circulation pump [20-60°C, default 35°C] Circulation pump operation mode [INTERR/CONT., default INTERR]

7. Disconnect the unit from main power supply

Whenever draining water from the tank, please disconnect the main power supply first. Water emptying operation shall be conducted according to point 5.5 (Installation and service instruction).

Whenever the tank is filled with water, please always connect the unit with main power supply. It is necessary to keep active electrical anode (titanium) protection.

Disconnection with main power supply is recorded in controller. It will be the user’s responsibility for potential tank leakage problem due to absence of the electrical titanium anode anticorrosive protection.

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

User

Solid fuel boiler B [visible in the diagram No. 3,8,9 ]

Gas boiler D [visible in the diagram No. 4,7,9]

Max. temp. switching off boiler [10-85°C, default 65°C] Block boiler when heat pump switched on [YES/NO, default YES]

Time program

Heat pump Heater E Circulation pump [visible in the diagram No. 2,3,4,6,7,8,9] Gas boiler D [visible in the diagram No. 4,7,9]

Antilegionella

Switch on function of antilegionella [YES/NO, default YES] Realize protection via heater E [YES/NO, default YES] Realize protection via gas boiler D [YES/NO, default YES - visible in the diagram No. 4,7,9]

[

Measured parameters Info Program upggrading [only for producent]

External controller

Switch off heat pum Switch off electric heater E Switch off gas boiler D Switch off pump F of solid fuel boiler B [ 3,8,9]

p [YES/NO, default YES]

[YES/NO, default YES]

YES/NO, default YES - visible in the diagram No.

Controller settings

Date and time Display

Backlight brightness [1-10, default 10] Backlight timeout [1-10min.,default 10 min.]

Sounds

Key sound [YES/NO, default YES] Dźwięk alarmów [YES/NO, default YES]

Port RS485

Transmission speed [default 115200] Physical address [default 255] Logical addres [default 65535]

Language

Polski English Deutsch

4,7,9]

Password

Service

Manual control

8.2 Parameter settings

According to the application type, you can choose corresponding scheme in controller. More information about schemes is in point 3.1 Connecting heat pump with other devices (installation and service instruction).

After entering Installation scheme, use arrow buttons to select scheme and confirm your choice by OK button. Scheme selection is available only after installer level login.

Installation scheme selection

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

The possible setting range is from 2 to 10°C - when change it, please consider both the user’s comfort and the proper operation of device.

Fan operation mode

You can change the fan speed in this option. There are 3 operation modes:

1) MAX - in normal condtion, fan works all the time at high speed (about 350m³/h). This will give you the best efficiency because of large amount air supply. When the air temperature(T1) is higher than 24°C, fan will automatically switch to low speed (becaue unit volumn of air contains more heat).

2) MIN - fan works all the time at low speed(ok. 250m³/h). At same air temperature condition, heat pump efficiency is relatively lower than with MAX mode. When the air temperature (T1) drops to below 10

MIN mode is useful for heat recovery application with heat pump connected to central recuperation system.

3) DAY/NT - in this mode, from 6:00 to 22:00 fan works at high speed, in the night at low speed. The lower fan speed, the lower quieter heat pump.

°C, fan will automatically switch to high

speed (to maintain proper efficiency).

Delay between defrosting cycles

Defrosting starting temperature

Defrosting ending temperature

The defrosting operation is described in point 6.1 Evaporator defrosting (Installation and service instruction).

The minimum interval time between two defrosting operation can be defined in range 30-90min. Thanks to this setting, we can avoid heat pump working in defrosting mode all the time when the air is cold.

This temperature suggests when there could be ice on evaporator, which deducts heat retrieving from the air. Defrosting operation will start when evaporator temperature (T8) is lower than this value and min. interval time is satisfied, then deforsting operation will be started.

If evaporator temperature is higher than this setting value, heat pump will quit defrosting and resume nromal operation.

Parameters of heat pump

There is one more parameter in installer level than user level: Hysteresis temp. switch heat pump on. It is to define the temperature difference to target, which will restart heat pump to maintain water temperature. For example, if the water is to be heated to 50

°C, heat pump

will restart heating water to 50°C.

°C ( the targeted temperature), and the hysteresis

is set as 5°C, when water temperature drops to 45

Fan operation mode

Heat pump par.:

MAX

Delay between min defrosting cycles

Heat pump par.:

Defrosting C starting temperature

Heat pump par.:

-7

Defrosting C ending temperature

Heat pump par.:

Histeresis C temp. switch heat pump on

Heat pump par.:

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

Maximum defrosting duration

The second parameter is defrosting duration. It will limit the longest defrosting time in one defrosting cycle. If it is expired, heat pump will resume to normal operating no matter whether defrosting ending temperature has been achieved.

Setting change made by inexperienced person may result in poor performance efficency!

External controller

We offer possibility for user to define which devices to turn on/off by an external controller. For example, if you set Switch off heat pump to NO, even when external controller disconnects the bridge (connected with termimal 12 and

13), heat pump operation will not be affected.

7.3 Manual control

It is rather a relay test. Depending which scheme is used, you can seperately check the operation of all devices connected. Exit to main menu, all devices will be turned off.

9. Alarms

The most common reason for sensor malfunction is open circuit. It could be in sensor cable or sensor extension cable or terminal connection to PCB. When detected, an alarm message will be displayed on screen and the controller will keep beeping till you press the OK button. And Error will appear at the the place where were to show sensor value.

In case of sensor T3 (schemes from 1 to 4) or sensor T2 (schemes 5 to 9) failure, heat pump will stop working- they are sensors responsible for water temeprature control.

sensor failure

9.1 Temperature sensors

Pressure alarms, drived by pressure switches installed in heat pump refrigerant system, will protect the system against abnormal working conditions. Pressure abnormality may be caused by component defects (like expansion valve mulfunction, refrigerant leakage, sensor errors, etc.) in heat pump or improper installation (for example, overlong air pipelines, insurficient air flow supply, etc.). Details will be described in next section.

The refrigerant system pressure is monitored by pressure switches which are connected to control board. Under normal condition, they have closed circult. When system pressure is out of the safe range, pressure switches will generate open circult, which will trigger alarm in controller and heat pump operation will be stopped. Whenever the pressure resumes to normal level, circuit will be closed again and heat pump restarts.

Max. min defrosting duration

Heat pump par.:

Switch off heat pump

External controller:

YES

Alarm 01

Temperature sensor

T1 failure

T1 T2 T3

Error

14.5 C

10.7 C

Tu 13-02-19 08:26

Run OK

9.2 High pressure and low pressure protection

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

8.3 Alarm list

Alarm

NO.

Alarm name

Potential reasons

Solution

Consequences

Alarm 01

Temperature sensor

T1 failure

1) Bad connection of sensor ( teminals to the control board is loosen, cable skin isolated metallic contact)

2) Broken sensor cable or intermittent contact in wire.

3) No contaction between connector socket and control board circuit.

4) Control board failure.

1) Check whether the connection position matches the electrical diagram

2) Check the resistance of sensors (5kΩ)

3) Check the connector to control board

4) Check the control board

1) T1

2) Disabled Low COP function

3) Compressor overloaded when air inlet temperature belows -5°C

Absent value of

Alarm 02

Temperature sensor

T2 failure

1) T2

2) Brak funkcji Low Temp

3) Blokada pracy pompy w schematach nr 5-9

4) Blokada pracy urządzeń sterowanych T2 (pompa cyrkulacyjna, w zależności od schematu kocioł stałopalny i kocioł gazowy)

Absent value of

Alarm 03

Temperature sensor

T3 failure

1) T3

2) Heat pump is blocked in schemes 1 to 4

3) Devices drived by T3 will be blocked too (in schemes include solid fuel boiler and gas boiler)

Absent value of

Alarm 04

Temperature sensor

T4 failure

1) T4

2) Block working of solid fuel boiler pump F

Absent value of

Alarm 08

Temperature sensor

T8 failure

1) Absent value of T8

2) Heat pump is blocked due to defrosting malfunction

Alarm 10

Temperature sensor

T10 failure

1) Check whether the connection position matches the electrical diagram

2) Check the resistance of sensor (50kΩ)

3) Check the connector to control board

4) Check the control board

1) Absent value of T10

2) Disabled Over Temp protection (in the worst case, electrical security will work or high/low pressure failure will happen)

Alarm 17

Low pressure in

working system of

heat pump

(Low Pres)

1) Refrigerant R134a leakage

2) Thick frost coverred evaporator (sensor T8 failure)

3) Dirty filter or evaporator(air flow blocked)

4) Low pressure switch misbehave

5) Expansion valve failure

1) Connect a manometer to the check valve reserved for service and check the pressure (low pressure switch opens when pressure is lower than 0.02Mpa, and resumes when pressure raises to above 0.15Mpa).

2) Clean the evaporator and the air filter

3) Report failure to HEWALEX service

Blokada pracy pompy ciepła po wystąpieniu alarmu w stanie spoczynku (przejście w stan alarmu nr 19). Niskie ciśnienie nie jest mierzone w czasie pracy sprężarki.

Alarm 18

High pressure

(High Pres)

working system of

heat pump

1) Overfilled refrigerant R134a

2) Too high water temperature in the tank (please check temp. sensors of T2 or T3)

4) High pressure switch misbehave

5) Expansion valve failure

1) Use external measurement device to check the temperature in water tank. And compare the value with shown on controller.

2) Check the resistance of position of sensor T2 and T3

3) Report failure to HEWALEX service

Blokada pracy pompy ciepła do momentu powrotu w stan prawidłowego ciśnienia roboczego (do momentu wystąpienia alarmu nr 19).

Alarm 19

Heat pump is blocked.

Please contact with

service.

1) Alarm 17 lasts longer than 10 min. in standby mode.

2)Alarm 18 happened 3 times in 30min. or lasted 30min in one alarm ( in working mode).

Alarm can be reset by replugging the main power cable. But contact with service is still required.

Block the heat pump till reset is done.

Alarm 21

Temp. after

compressor exceeded

the maximum limit.

(Over Temp)

1) Compressor works but no refrigerant sucked in.

2) Compressor capaciter failure

3) Wrong value of sensor T10

4) Insufficent refrigerant R134a

5) Malfunction of high and low pressure switches.

6) Expansion valve failure

1) Check the compressor working current

2) Check the resistance of sensor T10

3) Report failure to HEWALEX service

Block the heat pump till the temperature drops to normal value.

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

Technical data

1. Dimensions

Hot w ate r in

250

Dra in

ø64 0

138 0

182 0

112 0

500

Saf ety val ve

Col d water i n

Mag nesiu m anod e

Boi ler coi l inlet

Sol ar coll ector c oi l outle t

160

250

Ove rh ea tin g protecti on swit ch and ti taniu m anode

Ele ctric al heat er

Pre pared f or te mp. sen so r

32. 5

16. 5

410

Cir cu la tion

ø15 0

Sol ar coll ector c oi l in let

Boi ler coi l outle t

Hot w ate r out

228

Dra in

ø56 0

128 5

1700

104 8

Saf ety val ve conn ec tion

Col d water i n

Mag nesiu m anod e

Boi ler coi l inlet

280

248

Ove rh ea tin g protecti on swit ch and ti taniu m anode

Ele ctria l heate r

Pre pared f or te mp. sen so r

16. 5

528

Wate r circu la ti on

ø15 0

Boi ler coi l outle t

PCWU 200K-2.3kW

PCWU 300SK-2.3kW

Air f ilter

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

2. Parameter table

Mode l

Heat ing capaci ty

Tank volume

Input wo rk

Runnin g current

Wor king effici enc y COP ( A15/W 15- 45)

Power supp ly

Compresso r quant ity

Compresso r typ e

Rated ou tpu t wa te r temperatur e

Airfl ow

Air su pply press ure

Air co nnection d iam eter

Nois e (measure d at source locatio n)

Hała s (measure d wit h 2m dist anc e from source)

Water a nd co il connect ions

Elec trical hea te r power

Water proof c lass

Elec tric shock p ro te ction clas s

CE cer t ifi cate

Over- hea t power off temperatu re

Refrig era nt (weight)

Low pres sur e switch (OF F/ON)

High

Max. s afety val ve p arameter

Max. workin g press ure ( suction)

Max. workin g press ure ( discharg ing )

Coil quanti ty (area )

Unit d imens ion s

Package dim ensions

Net weig ht

Gross weight

pres sure switc h (OF F/ON)

1m²

PCWU

°C

m³/h

dB(A )

cal

MPa (g )

MPa

V~/H z

dB(A )

°C

MPa

200K-2.3k W

2.3

200

0.6

2.78

3.84

230/ 50

rot acy jna

250/ 350

150

3/4

1.5

IPX1

TAK

R134a (1100)

0.02 /0.15

0.7

1.3

2.1

630x 630x1770

104

2.1/1.7

ø560 x1700

300S K-2.3 kW

2.3

300

0.6

2.78

3.84

230/ 50

rot acy jna

250/ 350

150

3/4

1.5

TAK

0.7

1.3

2.1

640x 1820

720x 720x1880

102

119

IPX1

R134a (1100)

0.02 /0.15

2.1/1.7

3. CE certificate

On heat pump unit is marked with CE.

The CE marking is a mandatory conformity marking for products sold in the European Economic Area (EEA). It is manufacturer's declaration that the product meets the requirements of the applicable EC directives as following:

PN-EN 60335-1:2004:/A1:2005/A2:2008, PN-EN 60335-2-40:2004+A1:2006+A2:2009+A11:2005+A12:2005

Tests were carried out by authorized labtory in Poland.

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

4. Performance charts

Data based on model PCWU 200K-2.3kW and PCWU 300SK-2.3kW tests

15 - 35 C

15 - 45 C

15 - 55 C

Heating capacity chart

3.5

2.5

1.5

0.5

2 7 15 20 25

Air inlet temperature

Heating capacity kW

15 - 35 C

15 - 45 C

15 - 55 C

4.5

3.5

2.5

1.5

Air inlet temperature

Working efficiency COP

COP

-7 2 7 15 20 25

-7

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

Ambient temp. T1 Top tank temp. T2 Bottom tank temp. T3 Solid fuel boiler temp. T4 Evaporator temp. T8 Gas discharge temp. T10 Compressor Electromagnetic 2-way valve High pressure switch Low pressure switch Fan Mechanical temperature switch Transformer Electrical heater E Relay ouput D

5. Electrical diagram

CZE

S01+

S01-

S02+

S02-

S03+

S03-

S04+

S04-

CZA

CODE:20121227-0002

COMP

CZE

BIA

CR CC

1 2

3 4

7 8

TO POWER SUPPLY

220-240V~/50Hz

PCWU 300K-2.3kW

5 6

7 8

MTS

RESET

E2V

12V

CN3

CN1

CN2

CN4

Ż/Z

11 12 13

2 3 4 5 6 7 8 9

t5Kt

POM

Sterownik

RL04N

S11-

RL12N

RL13L

RL13N

AC-in L

AC-in N

RL12L

RS485

NL13N

LP HP

EV1 EV1

NIE

CZE

T1 T1

TTT

BTT

TTT

BTT

BT OUT D

IN external

controller

50K

L02N

L02L

Ż/Z

RL09N

RL09L

RL10L RL10N

RL11L RL11N

TrafoPriN TrafoPriL

RL05L

RL05N

RL06L

RL06N

RL07L

RL07N

RL08L

RL08N

RL01L

RL01N

RL02L

RL02N

RL03L

RL03N

RL04L

S13+ S13S14+ S14S15+ S15S16+ S16-

S09+

S09-

S10+

S10-

S11+

S12+

S12-

S05+

S05-

S06-

S07+

S07-

S08-

S06+

S08+

12V+

12V-

Rs1A+

Rs1B-

12V+

12V-

Rs2A+

Rs2B-

C2(2uF)

NIE

CZA

BIA

CZE

S01+

S01-

S02+

S02-

S03+

S03-

S04+

S04-

CZA

CODE:20121227-0002

COMP

CZE

BIA

CR CC

1 2

3 4

7 8

TO POWER SUPPLY

220-240V~/50Hz

PCWU 200K-2.3kW

5 6

7 8

HT(E)

MTS

RESET

E2V

12V

CN3

CN1

CN2

CN4

Ż/Z

11 12 13

2 3 4 5 6 7 8 9

t5Kt

ORG

Sterownik

RL04N

S11-

RL12N

RL13L

RL13N

AC-in L

AC-in N

RL12L

RS485

NL13N

LP HP

EV1 EV1

NIE

CZE

T1 T1

TTT

BTT

TTT

BTT

OUT C

IN external

controller

50K

L02N

L02L

Ż/Z

RL09N

RL09L

RL10L RL10N

RL11L RL11N

TrafoPriN TrafoPriL

RL05L

RL05N

RL06L

RL06N

RL07L

RL07N

RL08L

RL08N

RL01L

RL01N

RL02L

RL02N

RL03L

RL03N

RL04L

S13+ S13S14+ S14S15+ S15S16+ S16-

S09+

S09-

S10+

S10-

S11+

S12+

S12-

S05+

S05-

S06-

S07+

S07-

S08-

S06+

S08+

12V+

12V-

Rs1A+

Rs1B-

12V+

12V-

Rs2A+

Rs2B-

C2(2uF)

BLU

RED

WHT

BLK

AT: TTT： BTT: BT: CT: ET: COMP: E2V: HP: LP: FM: MTS: TC: HT: IR:

PCWU 200K-2.3kW

PCWU 300SK-2.3kW

OUT D

OUT F

OUT C OUT F

Temp. otoczenia T1 Temperatura w górnej części zbiornika T2 Temperatura w dole zbiornika T3 Temp. kotła stałopalnego T4 Temp. parowacza T8 Temp. gazu za sprężarką T10 Sprężarka Elektromagnetyczny zawór 2-drożny Presostat wysokiego ciśnienia Presostat niskiego ciśnienia Wentylator Mechaniczne zabezpieczenie przed wysoką temperaturą Transformator Grzałka elektryczna E Przekaźnik wyjścia D

AT: TTT： BTT: BT: CT: ET: COMP: E2V: HP: LP: FM: MTS: TC: HT: IR:

HT(E)

Instruction manual

Heat pump water heater PCWU 200K-2.3kW/PCWU 300SK-2.3kW

HT(E)

It is forbidden to repair the unit without contacting HEWALEX service team. In case of any malfunction or failures, please inform us via telephone ((32) 214 17 10) or

E-mail (serwis@hewalex.pl). Basing on failure information provided, we will provide local service for major malfunctions or guaidance of repairing for minor failures.

The heat pump must be connected to a properly functioning electrical system. Installation requirements include:

Water supplied for heat pump shall meet the requirments of drinking water (Journal of Laws No. 203, item. 1718):

Please use a safety valve with Max. 7bar limitation for the tank. The absence or misuse of safety valve may lead to damage of the tank

E) F) The tank installation shall avoid direct metallic connections with water pipelines. In case that you have to use metal connection ( ie, copper or steel), please apply

isolation devices ( ie, PA66 Gf30 - included as free accesories for heat pump, but also availabe from HEWALEX offer lists). G) Please select correct mounting position of the heat pump unit (See installation and service point 2: Select the installation location). Damages caused by

mislocation will not be covered by warranty (ie, corrosive or polluted air invasion to the heat pump, not leveling foundation, location in an unheated room). H) It is forbidden to disconnect power supply during heat pump operation (it means anytime when the tank is full of water). It will be the user’s responsibility for

potential tank leakage problem due to absence of the electrical titanium anode anticorrosive protection. Long-term power down information is automatically saved in controller.

. The safety valve shall be

checked once per month according to manufacture’s guidelines.

Installation of water, air and power supply must be in accordance with the guidelines and wiring diagram (Part installation and service points. 3 Installation)..

Warranty Card

Device model name PCWU................................................

Product serial number.............................................................................

Sale date........................................................................

Signature and stamp of the seller..................................................

HEWALEX

Spółka z ograniczoną odpowiedzialnością Sp. k. ul. Słowackiego 33 43-502 Czechowice - Dziedziece tel.+48(32) 214 17 10

Main power cable 3x1,5mm2 300/500V according to 227IEC53

- Overcurrent protection C16

- Differential protection 30mA

- Properly grounding the unit ( the resistance of grounding wire shall be less than 4Ω).

All of the above standards are common requirments of any house,so that they shall not be difficult to meet.

- pH between 6,5 and 9,5

- Conductivity lower than 2500 [μS/cm w 20°C]

- Ammonia below 0.5 [mg / l]

- Nitrates less than 50 [mg/l]

- Chloride content below 250 [mg/L]

- Copper less than 2 [mg/l, maximum value without water color change)

- Sulfates less than 250 [mg/l]

- Hardness 60-500 [mg CaCO ]

16.04.2013

WARRANTY TERMS

1. HEWALEX provides 2-year warranty for heat pump model HEWALEX PCWU 200K-2.3kW/300SK-2.3kW.

2. During warranted period of time, customers can enjoy free repair service for failures of manufacturer’s responsibility.

3. HEWALEX is not responsible for failures caused by violation from instruction during usage nor non-authorized repairing/modification nor any other failues which the manufacturer is not quilty for.

4. Repairing service will be accomplished within 30 days since the user’s report.

5. Failure report shall be sent to HEWALEX Warranty Service Department at Hewalex Sp. z o.o. Sp.K., street Słowackiego 33, 43-502, Czechowice-Dziedzice (tel.+48(32) 214 17 10, central line: + 48 723 232 232, information line: 0801 000 810, hewalex.pl).

6. Customers have right to replace the unit with new one or get refound, if the failure is caused by manufacturer and cannot be repaired.

7. The warranty is assured only when this warranty card is properly filled and registed. Warranty card unfilled or partially filled, or bearing traces of with the unauthorized alteration in content, will be treated as invalid.

8. Unreasonable on-site service cost will be charged to the user.

9. Detailed warranty conditions can be find in the manual (point 2 instruction: Warranty terms):

To realize warranty service, please keep the payment receipt or invoice, without which warranty cannot be assured.

Hewalex PCWU 200K-2.3kW, PCWU 300SK-2.3kW Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual