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Immergas ZEUS Superior Series User Manual

Immergas ZEUS Superior Series
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Technical documentation Technical documentation
STZS ed 06/03
1
ZEUS SUPERIOR
ZEUS Superior
Manual service centrala termica
murala Immergas zeus superior cu
boiler
ZEUS 21 Superior
ZEUS 24 Superior
ZEUS 27 Superior
- GENERAL FEATURES
ZEUS Superior is a wall-hung room sealed fan-assisted boiler featuring a "Gaudium Magnum" device for
fully exploiting the characteristics of this 54 l boiler in AISI 316L stainless steel.
The appliance is regulated and controlled by means of a printed microprocessor control board which,
through a display, shows the state of boiler operation (temperature, safety devices, etc.) and enables it to
be connected (optional) to the Remote Friend Control, to the zones unit and to the Multisystem 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 a high-head copper water-gas exchanger, an electric 3-way valve, a 2 l
d.h.w. expansion vessel, an adjustable system by-pass and a device that permits to increase the
maximum available flow of the domestic hot water (Gaudium Magnum).
Combustion air flow into the sealed chamber and flue extraction are ensured by a fan, the correct
operation of which is controlled by a differential pressure switch.
- MAIN DIMENSIONS AND CONNECTIONS
DIMENSIONS (mm)
HEIGHT WIDTH DEPTH
ZEUS 21/24/27
900 600 450
ATTACCHI
GAS SYSTEM
DOMESTIC
WATER
G R M U E
ZEUS 21/24/27
1/2 “ 3/4 “ 3/4 “
1/2 “ 1/2 “
V - electric connection
G - gas supply
R - system return
M - system delivery
S - recirculation (optional )
U - domestic hot water outlet
E - domestic cold water inlet
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Immergas ZEUS Superior Series Specifications

General IconGeneral
TypeCondensing boiler
InstallationWall-mounted
ErP RatingA
Heat exchangerStainless steel
Output24 kW to 32 kW
EfficiencyUp to 98%
Fuel TypeNatural gas, LPG
Control SystemDigital LCD display with remote control option
Warranty2 years

Summary

GENERAL FEATURES

MAIN DIMENSIONS AND CONNECTIONS

DIMENSIONS

Table showing physical dimensions of the boiler models (Height, Width, Depth).

CONNECTIONS

Diagram and labels detailing boiler pipe and electrical connection points (G, R, M, U, E).

ZEUS 21-24 SUPERIOR MAIN COMPONENTS

ZEUS 27 SUPERIOR MAIN COMPONENTS

CONTROL PANEL

HYDRAULIC CIRCUIT

PRIMARY CIRCUIT (BOILER CIRCUIT)

Explains the boiler's primary circuit operation, heat absorption, and water circulation.

CIRCULATOR

FLOW HEAD GRAPH

PRIMARY HEAT EXCHANGER

SAFETY DEVICES AND CONTROLS

SYSTEM BY-PASS

Ensures primary circuit circulation, adjustable via a screw for system resistance.

SYSTEM FILLING VALVE

Used to pressurize the heating system; includes a one-way valve to prevent backflow.

PUMP PRESSURE METER

Detects pump pressure difference, preventing burner operation on blockage.

3-BAR SAFETY VALVE

Protects the circuit by preventing pressure from exceeding 3 bar.

AUTOMATIC AIR VENT

Automatically expels air from the boiler circuit to maintain efficiency.

EXPANSION VESSEL

Compensates for water volume changes due to temperature fluctuations.

SECONDARY CIRCUIT (D.H.W. CIRCUIT)

OPERATION

Details how the DHW circuit activates, circulates water through the coil, and prioritizes DHW.

STORAGE TANK

TANK COMPONENTS

Description of anode, polyphosphate metering unit, and recirculation kit for the storage tank.

SENSORS AND SAFETY FEATURES

Covers NTC sensor, max flow thermostat, safety valve unit, and expansion vessel for the tank.

GAUDIUM MAGNUM

OPERATION

Explains the function and activation of the Gaudium Magnum device for increased DHW flow.

MOTORIZED 3-WAY VALVE

OPERATION

Describes the valve's function in diverting primary circuit water for heating or DHW.

GAS CIRCUIT

OPERATION

Overview of gas flow, air-gas mixing, and ignition process within the gas circuit.

MODULATING GAS VALVE

Details the gas valve's main and modulation coils for gas pressure and flow control.

BURNER

Describes the burner assembly, nozzles, ignition electrodes, and flame detection.

GAS ADJUSTMENTS

SIT 845 VALVE ADJUSTMENTS

Instructions for setting maximum and minimum gas pressure on the SIT 845 valve.

CHANGING TYPE OF GAS

Procedure for adapting the boiler to different gas types (Natural Gas/LPG) via kits and board settings.

FLUE CIRCUIT

OPERATION

Explains how combustion residues are conveyed and extracted by the fan and hood.

AIR/FLUE SAMPLING TRAPS

Details the points for sampling combustion air and flue gases.

FLUE PRESSURE SWITCH SIGNAL POINTS

Describes the pressure points used for measuring flue pressure switch signals.

FLUE PRESSURE SWITCH

FAN

EXTRACTION AND EXHAUST SYSTEMS

EXHAUST

Describes how the boiler connects to exhaust pipes using flanges, curves, and seals.

EXTRACTION

Details connection methods for extraction pipes using doubled or coaxial systems.

EXTRACTION EXHAUST KITS

Overview of available kits and accessories for extraction and exhaust systems.

VERTICAL CONCENTRIC KITS

KIT 60/100

Details for the vertical concentric kit with 60mm exhaust and 100mm extraction pipes.

KIT 80/125

Details for the vertical concentric kit with 80mm exhaust and 125mm extraction pipes.

SEPARATOR KITS

80/80 SEPARATOR KIT

Description of the 80/80 coupling type separator kit for flue and extraction.

INSULATED 80/80 SEPARATOR KIT

Details of the insulated 80/80 coupling type separator kit, including insulation.

ELECTRICAL CIRCUIT

230 V AC CIRCUIT

Wiring diagram illustrating the main 230V AC power supply connections and components.

SAFETY DEVICES AND CONTROLS

Overview of safety devices and their functions within the electrical circuit.

LOADS

LOW-VOLTAGE CIRCUIT SAFETY DEVICES AND CONTROLS

CENTRAL-HEATING PHASE

OPERATION WITH ROOM THERMOSTAT

Details the boiler's central heating operation sequence when controlled by a room thermostat.

OPERATION WITH REMOTE FRIEND CONTROL

Describes the central heating operation sequence when using the remote control.

D.H.W. PHASE

OPERATION

Details the boiler's operation sequence for domestic hot water (DHW) demand.

OPERATION WITH GAUDIUM MAGNUM

Explains DHW operation when the Gaudium Magnum switch is activated.

MODULATION BOARD

CENTRAL-HEATING OPERATION MODES

Covers central heating requests via room thermostat or remote control to the modulation board.

MODULATION BOARD OPERATION SEQUENCES

DOMESTIC HOT WATER REQUEST

Describes the boiler's operation sequence in response to a domestic hot water request.

CENTRAL-HEATING ANTIFREEZE REQUEST

Explains the boiler's operation for antifreeze protection in central heating mode.

"CHIMNEYSWEEP" REQUEST

Details the chimney sweep function activated via the reset button for max heating output.

INPUTS

TEMPERATURE SENSORS

Description of NTC and PTC sensors used for temperature monitoring and control.

SAFETY DEVICES AND CONTROLS

Input signals from safety devices (flame detection, pressure switches) to the control unit.

CONTROL AND OPERATION INPUTS

Inputs for main switch, remote control, room thermostat, and zone control unit.

OUTPUTS

ADJUSTMENTS

HEATING AND HOT WATER SETTINGS

Procedures for setting central heating and domestic hot water temperatures.

GAS AND POWER CONFIGURATION

Settings for gas selection, heating power, pump operation, and soft ignition.

SAFETY DEVICES

CIRCULATOR AND PUMP SAFETY

Safety features for circulator antilock and pump post-circulation operation.

SENSOR FAULTS AND OVERHEATING PROTECTION

Protection mechanisms for faulty sensors and overheating conditions.

POST-OPERATION SAFETY

Actions taken after burner switch-off, including combustion chamber washing.

INDICATORS

LED INDICATORS

Explains the function of DL1, DL2, and DL3 LEDs on the display card.

DISPLAY INFORMATION

Details information shown on the boiler's display, including temperatures and error codes.

ZEUS SUPERIOR OPERATION SEQUENCE

CENTRAL-HEATING MODE

Step-by-step sequence for boiler operation in central heating mode.

D.H.W. MODE

Step-by-step sequence for boiler operation in domestic hot water mode.

ZEUS SUPERIOR TECHNICAL DATA

COMBUSTION PARAMETERS

HEAT OUTPUT ADJUSTMENTS

Tables detailing burner gas flow rate and pressure for different heat outputs and gas types.

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