Installation, operation and care Wall-mounted electric boiler MP 4 150206 THL nr. - rev 02
Contents Notes... 3 Safety and handling... 4 Operation... 5 Technical data... 6 Pipe installation... 8 System principle Expansion vessel Safety valve Filling - bleeding Flow - bypass valve Circulation pump Pump capacity Display Indication Pump operation Electrical installation... 10 Power supply The boiler can be connected as follows: 1.5 kw / 230 V~ / 6.5 A 2.25 kw / 400 V 2N~ / 5.6 A 3.0 kw / 400 V 2N~ / 7.5 A 4.5 kw / 400 V 3N~ / 6.5 A External block/room thermostat Connecting the UTK 2000, accessory Wiring diagram Operation and care... 12 Control panel Temperature settings Safety valve Overheating protection If there is a risk of freezing Thermometer Expansion vessel Water pressure in the system Bleeding Draining Troubleshooting... 14 Components... 15 2
Notes To be completed when the MP 4 is installed! Serial number:... Installation date:... Installer:... Tel:... Connection: 1,5 kw /230V~ 2,25 kw / 400V 2N~ 3,0 kw /400V 2N~ 4,5 kw / 400V 3N~ Other:........................... 3
Safety and handling Read these instructions carefully before installation, adjustment or service is carried out. Keep the instructions close to the boiler. Check that the delivery is complete. All installation must be performed by an authorised person in accordance with the existing regulations. Only authorised persons may work on the system. Correct installation in combination with correct adjustment and continuous service will produce high operational reliability and good heating economy. Use only original spare parts. Spare parts that do not meet Värmebaronen's specifications may have an impact on safety. Always contact your installation engineer for service. The type and serial number of the boiler must always be specified when ordering spare parts. See the rating plate. This product is not designed to be used by persons with reduced physical or mental capacity or a lack of experience and knowledge unless they are supervised or instructed by a person with responsibility for their safety. Children must be instructed/supervised to ensure that they never play with the product. Värmebaronen AB reserves the right to change the specification, in accordance with its policy of continuous improvement and development, without prior notice. Subject to amendments and printing and proofreading errors. The following icons are used in these instructions to indicate important information: Information that is important for optimum operation. Tells you what you should or should not do to avoid personal injury. Tells you what you should or should not do to avoid the product, a component, a process or the environment from being damaged. The boiler must not be modified, changed or converted in any way. Electrical hazard! Never disable the safety equipment! Before service and maintenance work are started, the system must be disconnected from the main power supply. 4
Operation Compact MP 4 is small in size, with a discreet cover making it easy to find a space for. Many possible uses MP 4 is a wall-mounted electric boiler with a stainless steel container. The boiler has many possible uses for example underfloor heating in extensions or conservatories, or an easy way to heat your holiday cottage or detached garage. The MP 4 can also be used for portacabins, holiday chalets and on camp sites. The possible applications are endless. Separate systems are better If you have underfloor heating, it is better to have separate systems for heating and hot water. This means that the temperature of the hot water is independent of the temperature of the underfloor heating system (usually 25-40ºC). Powerful The boiler has the power to meet the heating requirement for a domestic surface area of 100 m², subject to insulation and ventilation. Depending on how it is connected, the boiler can supply 1.5, 2.25, 3 or 4.5 kw. The boiler is controlled by an onboard thermostat. Complete The MP 4 is supplied complete. Once the water and electricity are connected, it is ready to use. The boiler is equipped with: - thermostat - overheating protection - indicators showing power on and overheat protection triggered - control switch - circulation pump - expansion vessel - pressure gauge - thermometer - safety valve, 2.5 bar - automatic bleed valve - bypass valve Accessories UTK 2000: outdoor temperature compensation to adjust the boiler depending on the outdoor temperature, product no. 1920, RSK 6116278. Room thermostat, 7-30 C product no. 120082. 5
Technical data MP 4 product no: 2037 Power options 1.5 2.25 3.0 4.5 kw Voltage 230 400 400 400 V~ Phases 1+N 2+N 2+N 3+N Current 6.5 5.6 7.5 6.5 A Fuses 10 2 x 10 2 x 10 3 x 10 A Protection class IP x1 Power, circulationpump 2-34 W Volume, boiler 5.5 litre Volume, expansionvessel 2 litre Design pressure 2.5 bar Test pressure 3.6 bar Safety valve 2.5 bar Design temperature 80 C Temperature range 10-60 C Weight 17 kg Manufactured to AFS 1999:4 8 97/23/ECArticle 3 Without cover With cover 392 700 200 420 150 189 515 173 50 171 640 224 50 6
Technical data 23 20 19 21 26 5 27 22 18 25 17 15 16 24 5. Circulation pump 15. Flow pipe, R20 ext. 16. Return pipe, R20 ext. 17. Bypass with shut-off valves. 18. Safety valve. 19. Expansion vessel. 20. Bleed valve. 21. Stainless steel container, insulated, with immersion heater. 22. Protective cover for immersion heater wiring. 23. Cable penetrations. 24. Knockout for cables if they lead from the wall. 25. Collecting vessel, waste water from safety valve. 26. Sensor clip, thermometer bulb. 27. Protective cover. 7
Pipe installation The installation must comply with the applicable regulations and standards. The boiler is designed for indoor use, fixed to the wall or similar support with the pipes connected underneath. The ambient temperature must not exceed 30 C. The clearance underneath the boiler must be at least 300 mm to allow the immersion heater to be changed if necessary. Hard water with a high mineral content is not suitable for HVAC applications. To avoid corrosion, the ph value should not be too low. The venting pipe from the boiler safety valve leads to a drip collector within the boiler. The applicable regulations state that an installation inspection must be carried out on a system with a sealed expansion vessel, before it is put into operation. The inspection must be carried out by a person qualified for the task. A further inspection is required if any parts or the expansion vessel are replaced. Clamps must be used when the connections are made to prevent damage to the internal pipework. System principle The diagram below illustrates the system principle the actual system must be designed according to the applicable regulations and standards. Expansion vessel Expansion vessel: 2 litres, pressured on delivery to 1.5 bar. The expansion vessel can handle a heating system volume of 70 litres at 60 C and a static head of 5 metres. If the static head or the temperature is lower, the expansion vessel can handle a larger volume. If glycol is added, the capacity of the expansion vessel falls in relation to the quantity of added glycol. Safety valve The safety valve, 2.5 bar, is fitted to the boiler and the venting pipe leads to a drip collector within the boiler. Filling - bleeding The heating system must be filled with water to a pressure that is higher that the initial pressure of the expansion vessel, 1.5 bar. 2 bar is recommended. When the system is filled with water, it must be bled at the electric boiler and at the pipe manifold. Flow - bypass valve A reliable flow must be guaranteed, the boiler require a flow of 6.5 liters / min which gives a t at most 10 C. The bypass valve should be open between 0.25-0.5 turns. If the valve is: - Too little open, the pump may be damaged and the risk increases to overheat protection should trip. - Too much open, the circulation in the heating system become too small. D A Adjusting valve, unscrew the protective cover for access. C B A. MP 4 electric boiler, including: safety valve, expansion vessel, circulation pump, pressure gauge, bleed valve, and bypass with shut-off valves. B. Filling/drain valve. C. Shut-off/flow control valves. D. Underfloor heating system. Shut-off valves, flow and return to boiler. 8
Pipe installation Circulation pump Delivery setting: Constant pressure curve 1. If parts of the heating system does not get hot, this may need to be changed to Constant pressure curve 2. Election of a higher curve increases energy consumption and operating cost. Push bottom LED indications When the pump is running, LED 1 is green. The four yellow LEDs indicate the current power consumption as shown below. 0-25 % If LED 1 is red, it indicates alarm or warning. Display Indication Pump operation Rotor is blocked. Red + one yellow Red + one yellow Red + one yellow (LED 3) Supply voltage too low. Electrical error. Trying to start again every 1.5 Only warning, pump runs. Pump is stopped because of low supply voltage or serious failure. Counter action Wait or deblock the shaft. Control the supply voltage. Control the supply voltage /Exchange the pump. 25-50 % 50-75 % 75-100 % Pressing the push button shows which mode controls the pump. After 2 seconds, the display switches back to performance view. Key lock function If you press the key lock for more than 10 seconds, you can toggle between enabling/disabling the key lock function. When doing so, all LEDs, except for the red LED, will flash for a second indicating that lock is toggled. Pump capacity PROP. PRESS.: CURVE 1 PROP. PRESS.: CURVE 2 PROP. PRESS.: CURVE 3 p [kpa] 50 40 30 H [m] 5 4 3 CONST. PRESS.: CURVE 1 CONST. PRESS.: CURVE 2 CONST. PRESS.: CURVE 3 CONST. CURVE: CURVE 1 CONST. CURVE: CURVE 2 CONST. CURVE: CURVE 3 20 10 0 2 1 0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 Q [m³/h] 0.0 P1 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Q [l/s] [W] 35 30 25 20 15 10 5 0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 Q [m³/h] CONST. CURVE: CURVE 4 Pressing the button for 2 seconds switches to "setting selection". You can change the settings as they appear. The settings appear in a particular order in a closed loop. When releaseing the button, the user interface switches back to the performance view and the last setting is stored. 9
Electrical installation Electrical installation must be in accordance with the applicable regulations, under the supervision of an authorised installer.stallatör. 2.25 kw / 400 V 2N~ / 5.6 A Supply cable: 4 x 1.5 mm 2 Fuse: 2 x 10 A The boiler must not be connected to the power supply before it is filled with water. An all-pole circuit breaker must be installed ahead of the boiler. The ambient temperature must not exceed 30 C. 1 3 P X N N L3 L2 L1 Power supply Terminal block Protective cover 3.0 kw / 400 V 2N~ / 7.5 A Supply cable: 4 x 1.5 mm 2 Fuse: 2 x 10 A Jumper: N - X The boiler has two power settings: 1.5 and 3 kw. 1 3 P X N N L3 L2 L1 Knockout (cables from wall Cable penetrations In a single or two phase connection, the boiler will not act on all the main fuses. Other large consumers should therefore be connected to the phases that are not acted on by the boiler. 4.5 kw / 400 V 3N~ / 6.5 A Supply cable: 5 x 1.5 mm 2 Fuse: 3 x 10 A The boiler has two power settings: 2.25 and 4.5 kw. At 2.25 kw, only phases L1 and L2 (5.6 A) are loaded. 1 3 P X N N L3 L2 L1 The boiler can be connected as follows: 1.5 kw / 230 V~ / 6.5 A Supply cable: 3 x 1.5 mm 2 Fuse: 10 A Jumper: N - X 1 3 P X N N L3 L2 L1 External block/room thermostat The boiler can be blocked by an external device, for example a room thermostat with a voltage-free contact. There is normally a jumper between terminals 1-3 in the terminal block, 230 V~. 1 3 1 3 P X N N L3 L2 L1 10
Electrical installation Connecting the UTK 2000, accessory For more details, refer to the instructions for the UTK 2000. MP 4 3 1 3 P X N N L3 L2 L1 UTK 2000 Wiring diagram 6 80 C T 12 42 10-60 C T 41 7 L4 T4 8 4.5 kw 1 11 22 32 31 L3 T3 2 9 21 31 24 32 22 21 L1 L1 T2 T1 3 4 N 5 N A1 Alarm LARM N DRIFT 10 N Operation 11 12 A2 N N 1 3 P X N N L3 L2 L1 3 1 2 1. External block. 2. Jumper setting for 1.5 and 3 kw connection. 3. Terminal block. 4. Protective capacitor. 5. Circulation pump. 6. Overheating protection. 7. Thermostat. 8. Immersion heater. 9. Control switch. 10. Alarm indicator, overheat protection triggered. 11. On/off indicator, lights up when the boiler connected to the mains. 12. Contactor. Interventions requiring tools can only be carried out under the supervision of an authorised installer. Electrical hazard! 11
Operation and care Control panel Temperature settings Set the thermostat to a suitable temperature. The maximum temperature for a concrete floor is about 30 C and for a wooden floor it is about 40 C. The temperature requirement varies according to the time of year. 13 14 Min. 0,5 Bar Max. 2,5 Bar 6 10 Safety valve The safety valve must be exercised regularly in order to maintain the safety function. 11 7 C 9 Tillse att pannan är vattenfylld innan den startas Boiler must be filled with water before start 6. Overheating protection reset. 7. Thermostat/temperature setting. 9. Control switch. 10. Indicator showing triggered overheating protection. 11. On/off indicator, lights up when the boiler connected to the mains. 13. Manometer. 14. Thermometer. After installation, check with the installer that the system is in perfect working order. Ask the installer to demonstrate how to operate and care for the system. The boiler and the heating system must be filled with water before the switch is set to on. The boiler cover must be fitted while the boiler is running. Overheating protection The overheating protection in the boiler is triggered when the boiler temperature exceeds 80 C. You can reset the device from the control panel after the boiler temperature has fallen to below 65 C. Call the installer. If there is a risk of freezing If the system will be turned off for an extended period, think about the risk of freezing. All the water in the system must be drained if there is a risk of freezing, and the power supply to the boiler must be cut. Alternatively, the correct quantity of antifreeze can be added to the heating system. The boiler must not be put into operation if any part of the heating system is suspected of being frozen. Call the installer. Always check the reason for overheating. Thermometer The thermometer shows the temperature on the flow side of the boiler. Expansion vessel The initial pressure of the expansion vessel must be checked annually, see the data plate on the expansion vessel. Regularly check the amount of water in the drip collector for the waste water from the safety valve. Important in a new system. Water pressure in the system The boiler cover has to be removed in order to check the pressure. The pressure gauge shows the pressure in the heating system. Regularly check that there is sufficient water in the system. 12
Operation and care The pressure gauge must read 0.5-2.0 bar. The volume of water changes with the temperature, and this affects the pressure. The higher the temperature the greater the volume and the higher the pressure. The expansion vessel takes up the changes in volume. Check the water pressure in the system regularly. Bleeding Air may remain in the system for a while after installation, so water may need to be added. Draining Before the water is drained from the system, the electric boiler must be switched off. Always disconnect the power supply to the boiler before: draining the boiler water accessing the automation cabinet or units powered by the boiler 13
Troubleshooting Problem Possible cause Solution On/off indicator off, no heat in No power to electric boiler. Check the fuses. heating system. Switch set to off. Check that the main and control switch are set to on. Boiler externally blocked. Check whether the immersion heater is being blocked by an external block/room thermostat. Alarm indicator on. Overheating protection triggered. If the overheating protection is triggered, you must check the operation of the circulation pump and valves. To reset, press the button on the overheating protection after the boiler temperature has fallen to below 65 C. Always check the reason why the overheating protection triggered call the installer. No heat or not enough heat. The valves in the heating system Check and adjust. or boiler thermostat are set too low. Incorrectly adjusted bypass Check and adjust. valve. Group fuses for the boiler triggered. Immersion heater faulty. Check the immersion heater by doing an insulation test. Take measurements between the outgoing side of the contactor and earth. Call the installer. Interventions requiring tools can only be carried out under the supervision of an authorised installer. 14
Components Ref. Prod.no. Name Qty. 8 110010 Immersion heater 4.5 kw. 1 23 140202 Cable entry Ø17.5 mm 1 23 140205 Cable entry 16 mm 1 240552 Klingersil gasket R20 4 244067 Nut G 15 1 244101 Housing 2 x G20, 2 x G15, 1 x G8 1 20 245078 Bleed valve 1 245102 Hose fitting, swivel 1 17 245115 H-Bypass 1 18 245524 Safety valve 2.5 bar 1 5 246003 Circulation pump 1 19 246221 Expansion vessel 1 280007 Insulation 1 300017 O-ring, immersion heater 1 370055 Plastic plug, blue 1 370056 Plastic plug, red 1 25 370080 Collecting vessel 1 390271 1/2" hose, coupling 1 440261 Velcro strip 2 700268 Flow pipe 1 700269 Return pipe 1 700287 End gasket 1 700291 Electrical cabinet, complete 1 120009 Thermostat knob 1 6 120028 Overheating protection 1 7 120026 Thermostat,10-60 C 9 1 130032 Switch 1 Ref. Prod.no. Name Qty. 140203 Cable entry Ø35 mm 1 150030 Set of cables, complete 1 3 160003 Terminal block, 12-pole 1 3 160006 End plate for terminal block 1 160009 Jumper, 2-pole 3 160010 Jumper, 3-pole 1 12 170046 Contactor 1 11 190005 LED, orange 1 10 190006 LED, red 1 370058 Plastic lock plug 2 13 380009 Manometer, 0-4 bar 1 14 380022 Thermometer 0-120 C 1 4 440090 Protective capacitor X2 1 440306 Panel overlay 1 720260 Installation plate 1 26 700351 Sensor clip 1 710775 Support 18 mm 1 21 710975 Container 1 710976 Holder for expansion vessel 1 720188 Lower support 1 720189 Pipe holder, front 1 720259 Cover 1 720261 Base plate 1 720262 Pipe holder, upper 1 720263 Cover, immersion heater 1 720264 Protective cover 1 15
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