Immergas ZEUS Maior Manual Download | Manualshive

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ZEUS

Maior @

Wall-hung, room sealed boilers

with storage tank

Z

EU

S Maior @

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Summary of Contents for ZEUS Maior

Page 1: ...ZEUS Maior Wall hung room sealed boilers with storage tank ZEUS Maior...

Page 2: ......

Page 3: ...kW with an operation performance higher than 90 Both versions feature electronic control of the ignition tem perature and ame modulation With the new electronics used this boiler can be connected to...

Page 4: ...l supply Control panel Legend 1 Central heating selector switch 2 Domestic hot water selector switch 3 Burner ON yellow indicator light 4 Boiler ON green indicator light 5 Domestic hot water Remote Co...

Page 5: ...lve 10 Motorised 3 way diverter valve 11 System draining cock 12 System lling valve 13 Airtight chamber 14 Draught diverter 15 System expansion tank 16 Ignition detection electrodes 17 Burner 18 Domes...

Page 6: ...anger 9 Draught diverter 10 Fumes expulsion fan 11 Flue pressure switch 12 Airtight chamber 13 Central heating delivery NTC probe e limit 14 Overtemperature safety thermostat 15 Expansion tank 16 Circ...

Page 7: ...ets water ow through the system delivery M and return R pipes or to the coil 2 Head ow rate graph The course of the curve that represents the ow rate head ratio depends on how the system by pass is se...

Page 8: ...by a motor 1 that shifts it as required Operation When the central heating or domestic hot water position has to be reached the adjustment board starts the motor 1 When it is working with each 180 rot...

Page 9: ...ary circuit It is housed in the delivery manifold unit 1 and coupled to a microswitch that prevents the burner working when pressure is below 0 3 bar It prevents the main exchanger from overheating Au...

Page 10: ...er is drawn the modulation board starts the boiler circulator 7 working and powers the motor of the electric 3 way diverter valve 8 When the valve shifts into the d h w position see operation of the e...

Page 11: ...of the domestic hot water recirculation system if one is installed can be connected It consists of a pipe that is inserted in the storage tank after having removed the anode with its cap When the kit...

Page 12: ...ntrol unit when the burner has to be ignited They are electrically connected in parallel and supplied by mains power through a connector 2 Modulating coil 1 This is a low voltage coil controlled by th...

Page 13: ...ning power o to the modulating coil turn the screw 2 clockwise to increase pressure to the burner and in the op posite direction to reduce it Converting the gas type There are special kits for adaptin...

Page 14: ...s burner ignition Air fumes testing holes 7 8 There are two holes with screw closing on the top of the outside of the airtight chamber which can be accessed from the front they are used to sample comb...

Page 15: ...alled in the airtight chamber or fan assisted type C con guration or with the kit in the open chamber fan assisted type B22 con guration As regards to the head losses of each accessory for the various...

Page 16: ...uit s detection circuit Detection electrode E3 It interrupts power to the circuit when power input is over 3 15 A It is mounted on the modulation board Fuse F Fuse 3 15 AF 250 V Legend B1 NTC delivery...

Page 17: ...unit IGN BOARD It is powered when the main switch is on summer or winter see modula tion board operation Modulation board It is powered by the modulation board when there s a d h w central heating or...

Page 18: ...ch reset push button It lets the modulation board measure the temperature of the delivery water in the primary circuit If it breaks the burner stops working whether in the central heating or d h w mod...

Page 19: ...t checks the correct position of the ue pressure switch S4 NC position and then it powers the fan M2 After the ue pressure switch contact S4 has switched NO position caused by the fan working M2 the c...

Page 20: ...ch keeps working until limit switch A opens which occurs when the d h w position is reached If the system pressure switch S7 measures a pressure in the primary circuit that is higher than the minimum...

Page 21: ...al 19 free Operation Central heating request with room thermostat With the main switch S5 in the WINTER position and the room thermostat TA contact closed the low voltage circuit starts the circulator...

Page 22: ...ed in a way directly proportionate to the di erence between the temperature set with the heating potentiometer HEAT and that measured with the NTC delivery probe B1 and if necessary it reaches the max...

Page 23: ...energised It sends signals to the board referring to operation requests of zone valves connected external pumps see zones control unit operation Zones control unit CZ external optional Main switch S5...

Page 24: ...heating and if mounted to recognise CAR as the room thermostat of zone 1 see the technical data sheet for Zone Control Unit operation Zones control unit CZ external optional This is a BUS signal by m...

Page 25: ...on WINTER radiator antifreeze Circulator antiblock device 3 way diverter valve To prevent the water gas exchanger from overheating in the case of a blocked pump or if there is not much water circulati...

Page 26: ...stat triggered E4 E02 ignition control unit stalled board control unit connection not OK ue pressure switch not OK E14 central heating delivery NTC probe broken B1 E05 domestic hot water NTC probe bro...

Page 27: ...ering the fan The board powers the fan Powering the ignition control unit The modulation board powers the ignition control unit Powering the gas valve coils With the enable of the overtemperature safe...

Page 28: ...erature adjustment D H W ow limiter Min pressure for nominal ow rate Minimum dynamic pressure d h w circuit Max d h w circuit pressure Speci c ow rate T 30 C Flow rate for continuous service T 30 C Bo...

Page 29: ...rature C H temperature adjustment Total system expansion tank volume System expansion tank pre load Total d h w expansion tank volume D h w expansion tank pre load Appliance water content Available he...

Page 30: ...0 3 3 34 1 34 9 9 101 1 32 12 7 130 14 0 12000 1 68 2 9 29 1 25 8 7 89 1 23 11 2 114 12 8 11000 1 55 2 5 25 1 15 7 6 77 1 14 9 7 99 11 6 10000 1 42 2 1 21 1 06 6 5 66 1 04 8 3 85 10 5 9000 1 29 1 7 17...

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