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Technical documentation 

 

Technical documentation

 

STZS  ed 06/03

 

9

 

ZEUS SUPERIOR

 

 

 

- STORAGE TANK 

This AISI 316L STAINLESS STEEL storage tank has a useful capacity of 60 l. 
It consists of an external sleeve enclosed at the bottom by a flange fixed by 12 screws.

 

A STAINLESS STEEL cylindrical pipe with a concentric spiral shape (

coil

) is inserted inside and is coiled 

along all the height of the storage tank.  
Heat is exchanged between the hot water in the primary circuit and the water contained in the cylinder 
through the walls of the coil. 
This keeps the water in the cylinder at a constant temperature and guarantees instant availability of domestic 
hot water on demand 

(21.000, 24.000 e 27.000 kcal/h according to the versions)

If necessary, the coil can be removed from the storage tank after taking off the lower inspection flange. 
The following devices ensure that it operates correctly and is maintained in good condition: 

 
 

Anode (1) 

It is inserted in the storage tank and protects it against the 
action of galvanic currents.  
It is screwed onto the external sleeve at the bottom of the 
storage tank. 

 

 

Polyphosphate metering unit

 

(optional) 

This prevents any limestone deposits from accumulating on 
the walls of the coil. 
The special kit is mounted on the domestic cold water circuit 
inlet. 

 

Gaudium Magnum (6)

 

(see description and operation  Gaudium Magnum) 

 

Recirculation kit 

(optional) 

This is used to connect the pipes of any recirculation system 
of the domestic hot water circuit. 
It consists of a pipe that is inserted into the tank after having 
removed the anode with relative plug. 
When the kit is installed, the anode must be screwed to the end 
of the pipe.

 

 

Domestic hot water NTC sensor (NB) (9)

 

This allows the printed control board to detect the temperature 
of the water contained in the storage tank. 
It is attached to the external wall of the storage and inserted 
inside an immersion trap. 

 

Maximum flow d.h.w limit temperature thermostat (3)

 

It is a clicson thermostat which supplies the solenoid valve of 
the Gaudium Magnum device. 
It is fitted on the external wall of the storage tank. 

 

Safety valve unit (13) 

This unit is located in the lower part of the cylinder near the 
domestic circuit cold water inlet. 

In addition to an 8-bar valve (10) that prevents the safety 
pressure from being exceeded inside the storage, it also 
includes:  

- a filter, a cylinder drain valve with hose fitting (12) and a 
one-way valve 

(“5” domestic circuit)

 to prevent a pressure 

increase following heating of the domestic circuit hot water 
from causing water to return toward the water mains. 

 

Domestic hot water circuit expansion vessel (11)  

It compensates for volume variations following heating of the 
water contained in the cylinder. 
It is connected to the safety valve unit and has a capacity of 2 l 
at a pre-load pressure of 3.5 bar. 

 
 

 

 

 

 
 
 

 

 

 

 

Summary of Contents for ZEUS 21 Superior

Page 1: ...Water Disconnector D I M The range includes three electronic ignition versions with heat outputs of 24 4 kW 21 000 kcal h 27 9 kW 24 000 kcal h and 31 4 kW 27 000 kcal h The hydraulic circuit features...

Page 2: ...m 12 Automatic air vent 13 Flue hood 14 Expansion vessel 15 Ignition and detection electrodes 16 Domestic hot water NTC probe 17 Overheating safety thermostat 18 316L stainless steel storage tank 19 3...

Page 3: ...room 12 Automatic air vent 13 Flue hood 14 Expansion vessel 15 Ignition and detection electrodes 16 Domestic hot water NTC probe 17 Overheating safety thermostat 18 316L stainless steel storage tank...

Page 4: ...re selector 3 Domestic hot water temperature selector 4 Green domestic hot water operation indicator 5 0 SUMMER and CAR WINTER switch 6 Gaudium Magnum operation switch 7 Green Gaudium Magnum operating...

Page 5: ...it thermostat G Gas supply U Domestic hot water outlet E Domestic cold water inlet R System return M System delivery The hot water for the heating system and for the domestic circuit is produced by a...

Page 6: ...vailable head depends on system bypass adjustment which depending on its position gives the system greater or less head The graphs are refereed to the pump operating at top speed with A Bypass disconn...

Page 7: ...pump extremities Its housing is in the delivery manifold and is coupled to a micro switch 3 that prevents burner operation in the event of pump blockage or no water in the boiler circuit Prevents pri...

Page 8: ...ersion OPERATION Following a d h w request the modulation board starts the boiler pump 7 and powers the motor of the electric 3 way valve 8 The consequent movement of the valve to domestic hot water p...

Page 9: ...6 see description and operation Gaudium Magnum Recirculation kit optional This is used to connect the pipes of any recirculation system of the domestic hot water circuit It consists of a pipe that is...

Page 10: ...position It starts to work when the limit thermostat of max flow 3 fitted on the storage tank detects a temperature upper 50 C When the temperature gets down under 41 C the limit thermostat of max fl...

Page 11: ...positions is achieved by energizing the motor 1 Operation To move to the heating or domestic hot water circuit the motor 1 is activated by the control card Activating the motor whose rpm is reduced b...

Page 12: ...te the burner They are electrically connected in parallel and fed by mains voltage through a special connector 2 Modulation coil 1 This low voltage coil is controlled by the modulation card It control...

Page 13: ...ckwise to increase the pressure to the burner and counter clockwise to reduce it 1 Modulation coil 4 Gas valve outlet pressure connector 2 Min power setting screw 5 Gas valve inlet pressure connector...

Page 14: ...peration of which enables or does not enable burner ignition AIR FLUE SAMPLING TRAPS 6 7 The top outer part of the chamber features two sumps with screw closing accessible from the front and through w...

Page 15: ...he extraction exhaust terminals and is measured by the special pressure points fitted to the top part of the sealed chamber 8 9 Its operation causes a deviation of a switch contact that acts on the un...

Page 16: ...is done through the concentric hole outside the exhaust pipe 5 EXTRACTION EXHAUST KIT The kits and relevant accessories make it possible to use four concentric systems and two doubled systems As regar...

Page 17: ...Max possible overall length is 12 2 straight and vertical metres 80 80 coupling type separator kit Both pipes have a diameter of 80 mm Connections to the boiler are made using two special flanges for...

Page 18: ...mostat VD Electric three way valve V G Gas valve The electric circuit is interlocked with a microprocessor electronic board that controls boiler functions The control and safety devices work in part a...

Page 19: ...lation board whenever there is a demand for d h w heating or antifreeze Fan MV Ensures the flow of air inside the sealed combustion chamber and the exit of flues produced by combustion Powered by the...

Page 20: ...ation when flue expulsion occurs correctly If this is closed with the fan off the ignition cycle will not start 2 position switch Pump pressure switch SP This acts on the modulation board and permits...

Page 21: ...ing the relay K1 The consequent deviation of the flue pressure switch SV powers the relay K4 the contact of which on closing enables the control unit IGN UNIT to start the ignition cycle commanding fi...

Page 22: ...the 3 way valve VD is powered and continues to operate until the limit switch A opens once the d h w position has been reached The low voltage circuit excites the relay K5 and starts the fan MV comman...

Page 23: ...el by means of the central heating potentiometer HEATING the adjustment circuit excites relay K5 and starts the fan MV controlled by relay K1 The consequent deviation of the contact of the flue pressu...

Page 24: ...g to the difference between the temperature set by means of the d h w potentiometer D H W and that measured by the d h w sensor NB When the temperature measured by the d h w sensor NB exceeds that req...

Page 25: ...er d h w operation mode SUMMER or d h w and central heating mode WINTER are enabled closed WINTER open SUMMER Overheating lock IC1 This is a signal which through an optoinsulator indicates input to th...

Page 26: ...l unit after the overheating or ignition failure safety devices have tripped The operation is performed on the boiler control panel by means of reset button PU1 or if fitted on the remote control pane...

Page 27: ...ed until the temperature drops below 93 C NTC sensors faulty NR and NB The breakage of the d h w sensor NB prevents operation in d h w phase The breakage of the heat sensor NR prevents operation in ce...

Page 28: ...w antifreeze and chimneysweep mode The value set during the heating and domestic hot water circuit temperature adjustment for 5 seconds the letters CE with the CAR installed and the main switch in pos...

Page 29: ...rd powers the circulator and the electric 3 way valve The valve is moved to d h w position CLOSING OF PUMP PRESSURE MICROSWITCH The circulation of water inside the primary circuit causes the closing o...

Page 30: ...7 37 377 37 377 Max operating pressure of heating circuit bar 3 3 3 Max operating temperature of heating circuit C 90 90 90 Adjustable heating temperature C 38 85 38 85 38 85 Total volume of expansion...

Page 31: ...96 93 101 93 103 102 101 2 95 6 99 2 ZEUS 21 Superior HEAT OUTPUT ADJUSTMENTS NATURAL GAS G20 BUTANE G30 PROPANE G31 Heat output Kcal h Heat output kW Burner gas flow rate m3 h Burner nozzle pressure...

Page 32: ...0 11 6 1 43 2 0 20 1 07 6 2 64 1 05 8 7 89 9000 10 5 1 30 1 7 17 0 97 5 5 56 0 96 7 1 73 ZEUS 27 Superior HEAT OUTPUT ADJUSTMENTS NATURAL GAS G20 BUTANE G30 PROPANE G31 Heat output Kcal h Heat output...

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