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- ecoTEC VU 656/4
- Installation And Maintenance Instructions Manual
Vaillant ecoTEC VU 656/4 Installation And Maintenance Instructions Manual
Summary of ecoTEC VU 656/4
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For the heating engineer installation and maintenance instructions ecotec gas fired wall hung high efficiency boiler vu 656/4 gb.
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Installation and maintenance instructions ecotec 0020029173_01 2 6 start-up .............................................................. 25 6.1 water circulation system ........................................ 25 6.2 filling the system ...................................................... 25 6.2....
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3 installation and maintenance instructions ecotec 0020029173_01 contents notes on the documentation 1 1.1 storage of documents please pass on these installation and maintenance instructions and all other applicable documents to the owner of the installation who is responsible for keeping these docu...
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Installation and maintenance instructions ecotec 0020029173_01 4 2 description of the boiler 2.1 design 1 2 3 4 5 6 7 10 9 8 14 15 11 12 13 16 18 17 fig. 2.1 functional components legend: 1 connection for the flue pipe 2 heat exchanger 3 air intake pipe 4 compact thermal module with gas valve, fan,m...
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5 installation and maintenance instructions ecotec 0020029173_01 2.2 type summary boiler type designated country (designation in accord- ance with iso 3166) category of permit type of gas nominal heat output range p (kw) ecotec vu gb 656/4-5 h gb (great britain) ie (eire) i 2h natural gas h - g20 - ...
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Installation and maintenance instructions ecotec 0020029173_01 6 • notify the gas supply company or national grid transco 0800 111999 by telephone from outside the building! 3.1.3 changes to the surroundings of the boiler changes may not be made to the following equipment: – the heating appliance, –...
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7 installation and maintenance instructions ecotec 0020029173_01 h note! If the boiler is to be installed in a timber framed building, it should be fitted in accordance with "ige/up/7 edition 2 gas installations in timber framed and light steel framed buildings". 3.2.3 gas supply the gas supplier sh...
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Installation and maintenance instructions ecotec 0020029173_01 8 g n n m m a ii o h h c b l j q q q k p d, e f i fig. 3.3 termination of the flue pipe the flue assembly shall be so placed or shielded as to prevent ignition or damage to any part of the building. Location minimum dimensions a directly...
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9 installation and maintenance instructions ecotec 0020029173_01 balcony/eaves gutter flue pipe adequately fixed flue pipe must project beyond every overhang fig. 3.4 termination of flue pipe under balcony or eaves 3.4 air supply detailed recommendations for air supply are given in bs 5440: part 2. ...
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Installation and maintenance instructions ecotec 0020029173_01 10 4 assembly a caution! Flush the heating installation thoroughly before installing the boiler to remove foreign sub- stances such as solder and flux residue, lefto- ver sealant or dirt. 4.1 scope of delivery the vaillant ecotec is deli...
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11 installation and maintenance instructions ecotec 0020029173_01 4.4 dimension drawing and connection dimensions a Ø 80/125 r 1 172 172 32 224 224 121 140 75 211 800 61 94 119 Ø 25, r1 g 1 1 / 2 rp 1 rp 1 g 1 1 / 2 r 3/4 480 472 6 7 5 4 3 9 11 10 8 1 2 fig. 4.2 connection dimensions in mm legend: 1...
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Installation and maintenance instructions ecotec 0020029173_01 12 4.5 required minimum gaps/assembly clearances for the installation/assembly of the boiler as well as for carrying out future maintenance tasks, you need the minimum gaps and assembly clearances given below: 400 500 fig. 4.3 required m...
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13 installation and maintenance instructions ecotec 0020029173_01 4.8 removing/attaching the front casing 1 2 fig. 4.5 removing the boiler casing to dismount the front casing of the boiler, proceed as follows: • unfasten the screw (1) on the bottom of the boiler. • push in both retaining clips (2) o...
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Installation and maintenance instructions ecotec 0020029173_01 14 selection of the low loss header the low loss header uncouples the boiler from the heating system. A sufficiently large water volume is constantly supplied through the boiler via the low loss header in conjunction with the boiler pump...
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15 installation and maintenance instructions ecotec 0020029173_01 fig. 5.2 low loss header safety devices • the outlet of the pressure relief valve must be suitably terminated in accordance with bs 6798 or bs 6644. • the boiler is suitable for connection to plastic centralheating pipes. It is prefer...
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Installation and maintenance instructions ecotec 0020029173_01 16 5.1 heating mode in case of only one heating circuit to be operated downstream of the low loss header, this one can directly be controlled by the ecotec. A suitable pump can be selected and installed downstream of the low loss header....
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17 installation and maintenance instructions ecotec 0020029173_01 use the mounted proe plug (1) to establish the electrical connection for the cylinder charging pump. The pink plug-in location x6 (1) on the pcb is reserved for the cylinder primary pump. It is not necessary to do settings at any diag...
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Installation and maintenance instructions ecotec 0020029173_01 18 5.4 gas connection d danger! Danger of injury to persons and/or material damage due to improper installation! The vaillant ecotec boiler may only be installed by a recognised skilled trade company who also assumes the responsibility f...
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19 installation and maintenance instructions ecotec 0020029173_01 5.6 expansion relief valve (safety group), heating installation 1 2 3 4 fig. 5.11 fitting the safety valve the ecotec is equipped ex factory with connections for a safety group: • pressure gauge (1) • filling device (combined filling ...
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Installation and maintenance instructions ecotec 0020029173_01 20 b) connecting into the internal discharge branch (e.G. Sink waste) with an external termination, the condensate draining pipe should have a minimum diameter of 22 mm with no length restriction and should incorporate a siphon with a 75...
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21 installation and maintenance instructions ecotec 0020029173_01 1 3 4 2 fig. 5.14 opening back wall of the electronic box 9 8 7 + - 5 4 3 n l bus 9 8 7 + - 5 4 3 n l bus fig. 5.15 example for cable routing • remove the front casing of the boiler (see chap. 4.8) and tilt the electronic box (2) forw...
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Installation and maintenance instructions ecotec 0020029173_01 22 • if a weather-compensated or room temperature control system is connected (continuous control connection terminals 7, 8, 9) the bridge between terminal 3 and 4 must remain inserted. • close the rear cover of the electronic box until ...
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23 installation and maintenance instructions ecotec 0020029173_01 5.8.5 connection diagrams flow switch p x20 x2 1 2 4 + signal - 1 2 3 4 5 4 2 5 9 11 12 13 1 17 3 4 16 5 7 8 12 13 14 6 10 18 9 15 2 14 10 coding resistance 1210 Ω x11 brown black black black black black black black grey red red red b...
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Installation and maintenance instructions ecotec 0020029173_01 24 x11 x6 n l n l x13 x1 1 6 x41 5 4 3 n l 9 8 7 + 2 0 0 dcf rf af fb 1 - n l n l x18 x22 24 v 230 v~ optional ext. Controller/room thermostat 7-8-9 (continuous, analogue) bus connection for optional accesories safety circuit connection ...
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25 installation and maintenance instructions ecotec 0020029173_01 6 start-up a caution! The boiler must only be operated with its casing properly and permanently closed! Otherwise, under unfavourable conditions, it can result in material damage or even injury or death. H note! When starting up parti...
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Installation and maintenance instructions ecotec 0020029173_01 26 if the heating installation serves several floors, the values for the water pressure in the system may need to be higher (to avoid the ingress of air). • flush through the heating system thoroughly before actually filling it. 1 fig. 6...
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27 installation and maintenance instructions ecotec 0020029173_01 h note! If the installation kit is not present, do not operate the boiler. Contact vaillant customer service. D danger! If the boiler is operated with an empty condensate siphon, there is danger of poisoning through escaping flue gase...
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Installation and maintenance instructions ecotec 0020029173_01 28 6.3.2 checking the gas flow rate the boiler is fitted with a multifunctional automatic gas valve which ensures that the precise air/gas ratio is provided under all operating conditions. The gas flow rate has been set during production...
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29 installation and maintenance instructions ecotec 0020029173_01 • remove the pressure gauge and re-tighten the sealing screw (1). • turn on gas at the gas isolation valve. • make sure that there is no leakage at the sealing screw. • turn off gas at the gas isolation valve. • put the front casing b...
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Installation and maintenance instructions ecotec 0020029173_01 30 6.4.2 cylinder charging • switch on the boiler and the connected hot water cylinder. • make sure that the cylinder thermostat is requesting heat. • push the "i" button. If the cylinder is correctly charged the boiler runs through the ...
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31 installation and maintenance instructions ecotec 0020029173_01 7 adapting the boiler to the heating system the ecotec boilers are equipped with a digital information and analysis system (dia system). 7.1 selection and setting of parameters in the diagnosis mode, you can change various parameters ...
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Installation and maintenance instructions ecotec 0020029173_01 32 display meaning adjustable parameters factory setting boiler-specific setting d. 0 heating partial load 14 - 65 kw 46 kw d. 1 overrun time of internal pump for heating mode 2 - 60 min 5 min d. 2 maximum blocking time heating at 20°c f...
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33 installation and maintenance instructions ecotec 0020029173_01 7.2.1 setting the heating partial load the output of the boilers is set at 35 kw in the factory. You can specify a value that corresponds to the kw output of the boiler under diagnosis point "d. 0“. 7.2.2 setting of pump overrun and p...
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Installation and maintenance instructions ecotec 0020029173_01 34 t flow (target) [°c] set maximum burner blocking time [min] 1 5 10 15 20 25 30 35 40 45 50 55 60 20 2.0 5,0 10,0 15,0 20,0 25,0 30,0 35,0 40,0 45,0 50,0 55,0 60,0 25 2.0 4,5 9,2 14,0 18,5 23,0 27,5 32,0 36,5 41,0 45,0 50,0 54,5 30 2.0...
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35 installation and maintenance instructions ecotec 0020029173_01 8 inspection and maintenance 8.1 inspection and maintenance intervals danger! Risk of injury and risk of damage to property due to neglected inspection and maintenance! Neglected inspection and maintenance works or not observing the s...
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Installation and maintenance instructions ecotec 0020029173_01 36 - the gas inlet working pressure at maximum rate as described in section 6.3.3. - the gas flow rates as described in section 6.3.2. - correctness of electrical, water and gas connections. - correctness of the water pressure. - the con...
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37 installation and maintenance instructions ecotec 0020029173_01 • remove the front casing. • start the testing program p.1. • wait at least 5 minutes until the boiler reaches its operating temperature. • measure the co 2 concentration at the flue gas analysis point (1). Compare the measured value ...
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Installation and maintenance instructions ecotec 0020029173_01 38 . 8.1.5 inspection and maintenance work steps no. Activity column 1 inspection must be carried out each year column 2 maintenance must be carried out at regular intervals – but no longer than 5 years 1 check the air flue gas installat...
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39 installation and maintenance instructions ecotec 0020029173_01 8.2 filling/draining the boiler and heating installation 8.2.1 filling the boiler and the heating installation a description of how to fill the boiler and heating installation is provided in chap. 6.2. 8.2.2 draining of the boiler • c...
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Installation and maintenance instructions ecotec 0020029173_01 40 h danger! Danger of combustion and damage due to escaping hot flue gases! The silicone seal and the silicate cord on the compact thermal module (no. 180904) must be replaced at every maintenance operation. The insulating layer on the ...
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41 installation and maintenance instructions ecotec 0020029173_01 1 2 3 4 5 6 7 8 9 10 fig. 8.5 installing the compact thermal module • insert the compact thermal module (6) into the heat exchanger (1). • tighten the six nuts (4) including the retainer for the air intake pipe crosswise until the bur...
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Installation and maintenance instructions ecotec 0020029173_01 42 after that, both can be cleaned in the dismounted state. Take note also of the accompanying installation manual for the siphon cartridge. 1 fig. 8.8 cleaning the condensate siphon • dismount the siphon cartridge (1) below the boiler. ...
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43 installation and maintenance instructions ecotec 0020029173_01 a caution! All o-rings must be replaced with new ones as otherwise leaks may occur! • screw the brass cover onto the air separator. • reassemble the air separator in the reverse order. • fill and bleed the boiler (see chap. 6.2) 8.6 c...
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Installation and maintenance instructions ecotec 0020029173_01 44 9 troubleshooting h note! Whenever possible, please quote the fault code displayed (f.Xx) and the status of the boiler (s.Xx) when contacting the vaillant customer service or your vaillant service partner. 9.1 diagnostics 9.1.1 status...
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45 installation and maintenance instructions ecotec 0020029173_01 9.1.2 diagnosis codes in the diagnosis mode, you can change certain parameters or display more information. The diagnosis information is divided into two diagnosis levels. The 2 nd diagnosis level can be reached only after entering a ...
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Installation and maintenance instructions ecotec 0020029173_01 46 display meaning display value/adjustable value d.0 heating partial load adjustable heating partial load in kw (factory setting: approx. 70% of maximum output) d.1 pump overrun for heating mode 2 - 60 minutes (factory setting: 5) d.2 m...
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47 installation and maintenance instructions ecotec 0020029173_01 display meaning display value/adjustable value d.14 pump speed target value target value of internal pump in % possible settings: 0 = auto (factory setting) 1 = 53 2 = 60 3 = 70 4 = 85 5 = 100 (factory setting) d.17 heating flow/retur...
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Installation and maintenance instructions ecotec 0020029173_01 48 display meaning display value/adjustable value d.81 operating hours hot water generation in h 1) d.82 burner start-ups in heating mode number/100 1) (3 equals 300) d.83 burner start-ups in hot water mode number/100 1) (3 equals 300) d...
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49 installation and maintenance instructions ecotec 0020029173_01 code meaning cause f. 0 interruption, flow temperature sensor ntc plug not plugged in or has come loose, multiple plug on electronics not plugged in correctly, interruption in cable harness, ntc defective f. 1 interruption, return tem...
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Installation and maintenance instructions ecotec 0020029173_01 50 code meaning cause f.72 flow and/or return temperature sensor fault temperature difference between flow temperature sensor and return temperature sensor too great -> flow and/or return temperature sensor defective f.73 error in water ...
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51 installation and maintenance instructions ecotec 0020029173_01 10 replacing components the tasks listed below in this section may be carried out only by a heating engineer. • only use genuine spare parts for repairs. • make sure the parts are correctly fitted and that their original position and ...
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Installation and maintenance instructions ecotec 0020029173_01 52 10.4 replacing the heat exchanger d danger! Before replacing the component, observe the safety information in chap. 10.1. • observe the installation manual that accompanies the spare part. If you have any questions, please contact vai...
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53 installation and maintenance instructions ecotec 0020029173_01 13 technical data ecotec vu 656/4 unit heat output range (heating 50/30 °c) 14,6 - 67,6 kw heat output range (heating 80/60 °c) 13,8 - 63,7 kw maximum heat input (net) 65 kw net efficiency at 100% load 98 % net efficiency at 30% load ...
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0020029173_01 gb 082010 – subject to alterations.