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Installation, operation and care

EP E Series

7-stage electric boilers

EP 26E

and

EP 42E

2011-03-21
utg:

 

xxxxxx

Ersätter:08-05

Summary of Contents for EP 26E

Page 1: ...Installation operation and care EP E Series 7 stage electric boilers EP 26E and EP 42E 2011 03 21 utg xxxxxx Ersätter 08 05 ...

Page 2: ...atures 4 Technical data 5 HVAC installation 6 Siting the boiler Cables and pipework Safety supply pipe Waterquality Frostprotection Flow requirement HVAC installation 7 Pressure drop diagram Direction of flow Open expansion system Closed expansion system 2 5 bar 100 kW and 110 C Heating system with water heater Electrical installation 8 Power limit Restart after a power failure Power supply cable ...

Page 3: ...gs are shown in bold Numberofpower stages 7 6 5 4 1 2 ON ON OFF OFF ON OFF ON OFF Cirkulationpump 3 OFF ON eco summer mode continuous operation Main fuse EP42 EP26 1 3 125A 100A 80A 63A 50A 35A ON ON OFF OFF OFF OFF OFF OFF ON ON OFF OFF ON OFF ON OFF ON OFF Stagesize EP26 EP42 4 6 ON ON Do not change this parameter ON ON OFF ON Delayedreconnection 2h 1h 0h 7 8 ON OFF OFF OFF ON OFF Number of powe...

Page 4: ...connected power according to the current heating requirement The power can be limited to four power stages For safety the boiler can handle zero flow in other words it does not need to be fitted with a flow switch Load guard Load guard for power supply on 35 125 A main fuse Current trans formers are included Delayed reconnection Reconnection after a power failure lasting longer than 3 minutes as d...

Page 5: ... thread 34 Drain valve R15 35 Opening cover for electrical connections 36 Cable bushing 37 Adjustable base bolts EP 26 E EP 42 E Power 26 25 42 kW Current 37 9 61 A Power stage 3 75 6 kW Current stage 5 4 8 7 A Connecting cable max 16 25 mm2 Both models Voltage 400V3N 50Hz Cable fitting Ø 37 mm Volume of water 17 litre Test pressure 5 7 bar Operating pressure 4 bar Max temperature 110 C Operating ...

Page 6: ...ke the system watertight so that no new oxygen rich water has to be added and to ensure that the water is not oxygenated during installation In large systems it is virtually impossible to prevent leaks and oxy genation In such systems an oxygen demanding agent can be add ed so there is always a slight surplus in the system These agents often contain anti corrosive additives Water quality based on ...

Page 7: ...tted statistical pressure on the suction side Closed expansion system 2 5 bar 100 kW and 110 C The safety and venting valves are mounted on the boiler safety pipe 2 5 bar 100 kW and 110 C The safety valves emergency protection pressure switch and venting valve are mounted on the steam header on the boiler s supply and safety pipe Heating system with water heater The boiler heats the water heater a...

Page 8: ...stallation Electrical installation must be in accordance with the applicable regulations under the supervision of an authorised installer The boiler and water heater must be filled with water before electrical installation begins An all pole circuit breaker must be installed ahead of the boiler The minimum cross sectional area of cable for external units con nected to the boiler is 1 5 mm2 The amb...

Page 9: ...er The temperature control within the boiler itself takes precedence so the boiler temperature setting should be slightly higher than neces sary for the system The boiler Power status light will flash One long two short flash es until the external control signal reaches 100 Switch 1 in position OFF 5 25 24 1 2 3 4 External block Jumpers 2 3 removed Voltage free contact to 2 3 Passive 0 10 V The ex...

Page 10: ...ng 8 PCB 9 Indicator for power group one 10 Indicator for power group two 11 Indicator for power group three Wiring diagram EP 26 E 12 Alarm overheat protection triggered 13 Alarm relay 14 Control switch 15 Control fuse 17 Overheat protection power groups one and two 18 Overheat protection power group three 19 Contactor power group three 21 Immersion heater for power group one 22 Immersion heater ...

Page 11: ...heat protection triggered 1 2 3 4 1 2 3 4 1 2 1 2 3 4 1 2 3 2 3 4 5 6 9 7 8 11 10 12 13 14 15 16 17 18 19 20 21 1 22 23 40 13 Alarm relay 14 Control switch 15 Control fuse 16 Overheat protection power groups one and two 17 Overheat protection half of power group three 18 Overheat protection half of power group three 19 Contactor power group three 20 Contactor power group two 21 Immersion heater fo...

Page 12: ...of the power can be connected immediately after a loss of power lasting longer than three minutes The remaining power is delayed by an hour To test the boiler after it has been without power for example during installation or servicing the delayed reconnection can be disabled temporarily by pressing and holding the SNABB FAST button until the status light stops flashing You can use the SNABB FAST ...

Page 13: ...condition Ask the installer to demonstrate the settings and functions so you know exactly how to operate and care for the system Check the water pressure air may remain in the system for a while after installation so you should check the pressure again a few times Check that no tools etc have been dropped or left in the connection area Check that the boiler and heating system are filled with water...

Page 14: ...ted Check the setting see page 8 Number of power stages The boilers is being controlled by a 0 10 V signal The boiler temperature setting is too low Outdoor temperature compensa tion is connected the normal thermostat does not control the boiler temperature Check the settings on the UTK E Faulty temperature sensor Check the temperature sensor The sensor must not be connected to the circuit board d...

Page 15: ...lock 3 pole 1 1 16 00 06 End plate 1 1 16 00 09 Jumper 2 pole 6mm 1 1 16 00 11 Jumper 4 pole 6mm 1 1 16 00 12 End support 2 2 16 00 13 Bar bracket 1 1 40 16 00 18 Neutral terminal NPF 35 1 6 6 40 16 00 20 Earth bar JS 35 1 39 16 01 05 Terminal 100 CT43 3 13 17 00 06 Relay 1 pole alt 1 1 19 17 00 06 Contactor 100 C30 230V 1 1 20 17 00 75 Contactor 100 C43 230V 1 15 18 00 22 Circuit breaker 1 pole 6...

Page 16: ...F 4644 226358 291 94 Kristianstad www varmebaronen se Sweden info varmebaronen se Värmebaronen AB retains the right to change the specification of included components without prior notice as part of its policy of continuous improvement and development ...

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