Eco Hometec EC 25 COMPACT Technical Manual - page 3
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 Approvals .........................................7
3.3 Modulating pump .............................7
3.4 Frost Protection................................7
3.5 Year Long Protection .......................7
3.6 P.P.S Plastic Flue System. ..............7
3.7 Additional Features ..........................8
4. Description
of Appliances .............. 8
4.1 EC 25 H Compact ............................8
4.2 EC 25HS Compact...........................8
4.3 EC EC 25S Compact .......................8
5. Technical
Information................... 10
6. Accessories ................................. 14
7. Hydraulic
Connections................ 15
7.1 First Fixing Pipe-work ....................15
7.2 Connections ...................................15
8. Flues
and
Ventilation ................... 17
8.1 Maximum Flue Lengths..................17
8.2 Available Flue Components ...........17
8.3 Vertical flue Installations ................18
8.4 Modular installations ......................18
8.5 Condensate Drain ..........................20
8.6 System By-Pass.............................20
9. Electrical Connections ................. 20
10. Heating Control Options............... 20
11. Additional Features ...................... 21
11.1 Laptop Serial Connection........... 21
11.2 8.1.5
Frost
protection ................. 21
11.3 Weather
compensation .............. 21
12. Hot water output .......................... 22
12.1 Combi Type ’S’ Tap boiler.......... 22
12.2 Pump
operation.......................... 22
12.3 Hot Water Cylinder..................... 22
13. Safety devices ............................. 22
13.1 Flow
protection........................... 22
13.2 High temperature protection ...... 23
13.3 Static
pressure ........................... 23
14. Condensing System Design......... 24
14.1 Design
Considerations............... 24
14.2 Traditional .................................. 24
14.3 Condensing................................ 24
14.4 Under-floor................................. 24
14.5 Under-floor
Heating.................... 24
15. Under-floor heating ...................... 24
15.1 Systems using radiators............. 24
15.2 Sizing Radiators and Output ...... 25
15.3 Pipe Sizing and Flow Rates ....... 25
15.4 Control of Circuits ...................... 25
Figure 1 Solar heating................................ 9
Figure 2 Component Locations ................ 12
Figure 3 Pipework Connections ............... 15
Figure 4 Overall Dimensions.................... 16
Figure 5 Vertical Wall Terminal ................ 18
Figure 6 Vertical Flue Application ............ 18
Figure 7 Modular Installation.................... 18
Figure 8 Vertical Roof Terminals............. 19
Figure 9 Concentric flue fittings................ 19
Figure 10 80mm Flue Tubes .................. 20
Figure 11 Controls Terminal ................... 21
Figure 12 Control Terminal Block ........... 21
EC 25 Compact Technical Manual page
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