Fantini Cosmi EV02F Manual Download Page 11

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SUMMER MODE DUTY

(for systems with mixing valve).

When the boiler is used for sanitary water and you

have to exclude the heating system, perform the fol-

lowing operations:

a) turn control unit selector H to OFF position and

wait for about 10 minutes to allow the mixing valve to

close completely, then turn the system off.

b) stop water circulation pump.

c) close circulation pump gate valves to prevent hot

water infiltration into radiator circuits during the sum

mer, since mixing valves do not ensure perfect seal.

If the boiler is not fitted with hot water system, the

previous operations are not necessary - the burner

shall however be turned off.

Fantini Cosmi S.p.A. reserves the right to make what-

ever technical and manufacturing modification with

out prior notice.

NOTES

GB79088F

Summary of Contents for EV02F

Page 1: ...e set programming determines the delivery water temperature value to be sent to the system to keep the set ambient temperature constant The control unit is fitted with quartz clock for daily programmi...

Page 2: ...in insulat ing material with transparent cover Protection IP40 installation wall flush or rear panel mounting TECHNICAL DATA Control unit consumption 5VA Supply voltage 230V 10 50Hz Compliance with CE...

Page 3: ...re similar to those tabulated below Resistance values as a function of temperature EC11 OUTSIDE PROBE TEMPERATURE RESISTANCE C DELIVERY PROBES EC12 EC13 TEMPERATURE RESISTANCE C 40 8629 35 7853 30 711...

Page 4: ...ff with the exception of the an tifreeze protection in the antifreeze operating mode and at night in the AUTOMATIC 2 operating mode To make the most of the remaining heat accumulated during the daytim...

Page 5: ...ervo controls powered with 230 V 50 Hz Circulation pump supply Servo control Supply voltage Common Open Close Delivery probe EC12 EC13 Outside probe EC11 230 V 50 Hz Circulation pump supply Circulatio...

Page 6: ...mfort Automatic 2 nightime antifreeze daytime comfort Screw for mechanical connection between electronic panel and terminal base Quartz clock for daily programming FRONT CONTROL PANEL L H G F E A A B...

Page 7: ...the purpose and with heat conducting paste interposed in order to guarantee proper heat conduction The immersion probe EC13 must be fitted in the pip ing with the sheath filled with mineral oil or si...

Page 8: ...8 EXAMPLES OF HYDRAULIC CONNECTIONS FOR MIXING VALVES 3 WAY SECTOR POWER OPERATED MIXING VALVE 3 WAY ROTOR POWER OPERATED MIXING VALVE 4 WAY ROTOR POWER OPERATED MIXING VALVE...

Page 9: ...turn slightly knob F counterclockwise if it is higher turn knob F clockwise Check again temperature after 24 hours If required keep on adjusting knob F position like indicated in the table below unti...

Page 10: ...NAL INSTRUCTIONS WINTER MODE DUTY Open the circulation pump gate valves Start the pump If the system is equipped with mixing valve operate the valve manually to remove any sediment deposi ted inside t...

Page 11: ...etely then turn the system off b stop water circulation pump c close circulation pump gate valves to prevent hot water infiltration into radiator circuits during the sum mer since mixing valves do not...