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5. Piping Installation

Complete installation form (section 11) after 
installation. Install piping in accordance with 
current regulations and ensure that pipes 
cannot break. 

- The unit should be installed vertically in a 
designated dry warm room. 

- Check whether the expansion tank has 
sufficient volume for your site. 

- Ensure that the pre-pressure of the 
expansion tank is at least 0.5 bar. 

- To fill and empty the system easily, fit the 
connections of the electric boiler and heating 
system with shutoff valves.  

- Make sure to provide boiler drainage e.g. 
through the safety relief valves. The drain 
lines should be laid from the safety relief 
valves to the floor drain (drain pit).  

- Leave at least 0.8 m free space in front of 
the unit according to safety regulations. 

- When filling the heating system leave the 
safety valve open until some water comes out 
of the discharge pipe. Close the safety valve 
and continue filling the system until no air 
comes out and the pressure gauge is at 1 bar.  

- Heating system must be deaerated a couple 
of times so that there is no extra air in the 
system. 

- Heating system circulation between pump 
and boiler cannot be closed. When required, 
heating circle must be equipped with a valve 
(BY-PASS valve), which ensures the 
circulation between pump and boiler.  

6. Electric Wiring 

Only an authorized and qualified wiring 
company can install electric wiring.  

Unit’s internal connections have been factory 
installed and tested. These connections cannot 
be modified. The unit should be connected to 
the power mains on site in accordance with 
current regulations and the connection 
diagram (see section 7). A power cable and 
fuses are determined according to the power 
rating of the unit.  

The maximum power of PW boiler (see 
picture 1, maximum power control) can be 

selected from a number of options, and the 
boiler is suitable only for 1~ wiring. To 
achieve maximum efficiency of the main 
fuses, the electronic system is fitted with 
automatic current limitation. Current 
transformers must be installed at the central 
board of the house for measuring total current 
on site.  

Power lines should be laid through leads in 
the base plate to the connection point behind 
the front plate. 

 

6.1. To Be Considered During Installation 

The current transformers connected to the 
mains must be closed when not connected to 
the unit. 

Check load balance applied to the main fuses 
of the house while giving consideration to: 

 

 

- ventilation (incoming air heating) 
- garage / warehouse electric heaters 
- car socket groups 
- refrigerating system groups 
- dish / clothes washing machine groups etc. 

 

 

Содержание PW

Страница 1: ...ELECTRIC BOILER PW INSTALLATION AND OPERATION MANUAL J SPI KNOWS HOW TO CREATE WARMTH AND COMFORT JASPI UK www northmangroup co uk Telephone 01392 247340 Email info northmangroup co uk...

Страница 2: ...ture Decrease 9 5 Maintenance Menu 10 Troubleshooting 10 1 Insufficient Heat 10 2 Empty Automatic Control Screen 10 3 If the Cause of the Trouble Is Not Found 10 4 Resistance Values of Boiler Sensors...

Страница 3: ...eating water temperatures maintains suitable user defined temperature in the heating system The boiler also functions without outdoor temperature control with a so called set temperature control PW is...

Страница 4: ...3 1 Function Diagram...

Страница 5: ...12 l Circulation pump 180 mm 25 40 R3 4 Safety relief valve DN 15 1 5 bar Automatic deaeration Shutoff drain R1 2 Max temperature 100 C Min temperature 0 C Supply Outdoor temperature sensor 1 current...

Страница 6: ...olation 6 Water level switch 7 Circulation pump 8 Pressure gauge 9 Wall bracket 10 Sensor probe 11 Safety valve pipe R20 12 Drain and filling valve R15 13 Return Inlet R20 14 Outlet R20 15 Electric le...

Страница 7: ...of the boiler back side and detach the bracket 2 Mount the bracket to a reinforced wall with four screws 3 Hang the boiler on the bracket hooks 4 Attach the two screws pulled out on phase 1 on top of...

Страница 8: ...e equipped with a valve BY PASS valve which ensures the circulation between pump and boiler 6 Electric Wiring Only an authorized and qualified wiring company can install electric wiring Unit s interna...

Страница 9: ...re that melt water and icing will not cause damage to the sensor If the outdoor sensor is installed near the wall inlet make sure that the inlet is insulated properly 10 11 Connection of current trans...

Страница 10: ...7 Electrical Diagram...

Страница 11: ...tches and automatic controls Check the safety relief valves of the heating unit at least twice a year The safety valve is activated by turning it anti clockwise and water flows through the safety valv...

Страница 12: ...ature is 0 C The curve can be steeper in houses with radiator heating system Recommended starting curve is 35 With this curve heating system water temperature is approx 35 c when outdoor temperature i...

Страница 13: ...9 1 Front Panel...

Страница 14: ...control unit screens Normally the screen visible is basic screen state but when the timer is set or the unit receives power limitation or trouble messages the screen varies between basic screen state...

Страница 15: ...9 3 Settings Heating control basic settings heating curve selecting fine adjusting and temperature limits...

Страница 16: ...9 4 Temperature Decrease This screen state is for selecting if a lower or higher heating setting is being used at a certain time of day...

Страница 17: ...9 5 Maintenance Menu For the installer only The service menu is for setting main fuse size of the property and max power of the unit...

Страница 18: ...oor boiler sensor troubles the Error NOT CONNECTED message will be displayed on the screen When the outdoor sensor fails the automatic system will assume the outdoor temperature to be 0 C When the boi...

Страница 19: ...set temperature according to set value 10 80 C When the boiler sensor is removed the regulator will switch power off 10 5 Current Transformer Check Current values applied to the main fuses of the hous...

Страница 20: ...ower of the boiler stage limitation 1 6 See table at section 6 and 6 3 kW Step 6 12 2 kW Set value corresponding to the main fuse of the house 16 70 A A 63 A Temperature decrease 0 20 C C 0 C Selected...

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