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Eco Hometec EC 25 COMPACT Technical Manual

Manual is about: Condensing

Summary of EC 25 COMPACT

  • Page 1

    Eco hometec variable controlled output (vco) solar compatible jjjjj gas condensing boilers ec 25 compact t t e e c c h h n n i i c c a a l l m m a a n n u u a a l l.

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    Eco hometec unit 11e carcroft enterprise park carcroft doncaster dn6 8dd tel. 01302 722266 fax. 01302 728634 e.Mail. Sales@ecohometec.Co.Uk http://www.Eco-hometec.Co.Uk c:\amanuals\ec25compacttechnicalmanual021099.Doc\30 june 2002 eco hometec has a policy of continuous improvement and reserves the r...

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    Contents 1. Why choose eco hometec?............ 4 1.1 benefits at a glance .........................4 2. Introduction .................................... 5 2.1 the condensing process.................5 3. Not all boilers are the same ........... 6 3.1 how does vco work?......................6 3.2 ap...

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    1. Why choose eco hometec? 1.1 benefits at a glance wall mounted ultra high efficiency gas boilers suitable for installation into existing systems, new radiator and/or underfloor installations, can also be used with solar heating systems a dramatic reduction of the harmful emissions nox 8.1 – 27.1 p...

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    2. Introduction one of the elements in both natural gas and propane is hydrogen. A gas burning appliance mixes the gas with air and during the combustion process hydrogen and oxygen combine together and produce heat (143,100kj/kg) and water vapour (h 2 o). For every kg of hydrogen burned 9kg of wate...

  • Page 6

    Question? Does an eco hometec boiler need to maintain hot flue gas temperatures? Answer: no, eco hometec boilers and flue systems are designed and constructed from stainless steel and pps plastic. The condensate water from condensing flue gases does not affect these materials. Question? What are the...

  • Page 7

    Digital controller that automatically adjusts the boilers output depending on system load requirements. This feature, variable controlled output (v.C.O.), is the very latest from eco hometec in condensing technology and ensures the boiler maintains optimum efficiencies even when operating at part lo...

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    3.7 additional features a unique and patented corrosion resistant stainless steel condensate heat exchanger. Integral sensors (ntc) for monitoring flow and return water temperatures. 3 way switching valve and facilities for connection to an eco hometec dhw storage module or similar. Computer control...

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    Figure 1 solar heating ec25 ‘s’ type combi hydraulic system design when installed with solar heating ec 25 compact technical manual page 9.

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    5. Technical information. T t a a b b l l e e 1 1 d d i i m m e e n n s s i i o o n n s s & & c c o o n n n n e e c c t t i i o o n n s s product identification number ce ~ 0063 at3070 dimensions (h x w x d) 600mm x 360mm x 300mm heating circuit connections 15mm gas connection 15mm condense drain co...

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    T t a a b b l l e e 4 4 h h o o t t w w a a t t e e r r s s p p e e c c i i f f i i c c a a t t i i o o n n s s model ec25s maximum rated input kw 28 modulating output ec25 kw 8-28 modulating output ec18 kw 5-18 hot water flow (ec25 only) rates at ∆τ 30k (s type) l/min 13 maximum tap water pressure ...

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    F f i i g g u u r r e e 2 2 c c o o m m p p o o n n e e n n t t l l o o c c a a t t i i o o n n s s page 12 eco hometec ( uk ) ltd ..

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    T t a a b b l l e e 7 7 c c o o m m p p o o n n e e n n t t l l i i s s t t pos. Description 1 heat exchanger 2 hot tap water boiler 3 pump 4 three-way valve 5 three-way valve internal parts 6 incandescent igniter 7 ionization pin 8 burner 9 condensation tray 10 gas valve 11 fan 12 venturi tube 13 w...

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    6. Accessories the following items are also available from eco hometec at extra cost. Colour coded 1/4 turn isolating valves. Stainless steel flexible pipe connections. In line filter/strainers. Condensate sump pump for below ground installations. N.B. Lpg installations must not be installed below g...

  • Page 15

    Figure 3 pipework connections 7. Hydraulic connections 7.1 first fixing pipe-work all the pipe-work and wiring connections enter at the bottom of the unit. To ensure a tidy installation it is important to consider at the first fixing stage the order you arrange the pipe-work and if applicable any ca...

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    F f i i g g u u r r e e 4 4 o o v v e e r r a a l l l l d d i i m m e e n n s s i i o o n n s s page 16 eco hometec ( uk ) ltd ..

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    8. Flues and ventilation it is advisable when installing the boiler to use an eco hometec p.P.S. Plastic concentric flue system or the twin 60mm tube system. This not only ensures that there is sufficient combustion air, but also reduces room ventilation requirements thus increasing the number of po...

  • Page 18

    Figure 5 vertical wall terminal 8.3 vertical flue installations for vertical flue applications a range of fittings for both pitched and flat roofs are available. Please contact eco hometec for further advice. Figure 6 vertical flue application 8.4 modular installations for multiple boiler (modular) ...

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    Figure 8 vertical roof terminals concentric vertical flue fittings are available from eco hometec. Concentric flue components have push together spigot and socket joints. The inner pps flue gas tube has silicone seal rings located in the socket component. The outer air tube has epdm rubber seal ring...

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    Additional 80 pps flues tubes and fittings are available from eco hometec details below: figure 10 80mm flue tubes 80mm 1000mm pps flue pipe 80mm pps 45 degree pps elbow 80mm pps 45 degree connector 80mm wall fixing clamp 80mm – 100mm increaser above also available in 60mm a range of flexible flue l...

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    Figure 11 controls terminal the boiler control inputs are all low voltage and must no be connected directly to the mains. The connection terminal block plug (fig. 18) is located underneath the boiler see fig 19. Figure 12 control terminal block 11. Additional features 11.1 laptop serial connection f...

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    12. Hot water output 12.1 combi type ’s’ tap boiler the appliance is provided with an integral hot water store that keeps a limited quantity of hot water at a pre-set temperature. This means that hot water is always available. As soon as the temperature in the tap boiler falls below 5 °c below set p...

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    13.2 high temperature protection the maximum temperature protection is obtained with the aid of the supply and return sensors. If one of these sensors registers a temperature in excess of 93 °c, the burner will always be switched off. If one of these sensors registers a temperature in excess of 105 ...

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    14. Condensing system design the implications of eco hometec vcocondensing boilers and the design of old and new central heating and hot water systems eco hometec vco condensing boilers are, without doubt more efficient (up to 98% efficient) than conventional balanced or natural draught boilers and ...

  • Page 25

    Designing a system using radiators, the echs and s combi model offers the designer two options. Option 1. Design the system using a variable flow temperature decided by outside air temperature. Maximum flow temperature 85 o c system differential 2o o c. Maximum flow temperature would only be require...

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    Save gas save money only boilers from eco hometec are fitted with variable controlled output eco hometec unit 11e carcroft enterprise park carcroft doncaster dn6 8dd tel. 01302 722266 fax. 01302 728634 http://www.Eco-hometec.Co.Uk e.Mail.Sales@ecohometec.Co.Uk page 26 eco hometec ( uk ) ltd ..