Immergas ZEUS kW Export Technical Documentation Manual
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Immergas ZEUS kW Export Technical Documentation Manual

Wall-hung, room sealed boilers with storage tank
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ZEUS kW
Export
Wall-hung, room sealed boilers
with storage tank

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Summary of Contents for Immergas ZEUS kW Export

  • Page 1 ZEUS kW Export Wall-hung, room sealed boilers with storage tank...
  • Page 3 Technical Documentation Technical Documentation ZEUS kW Export Wall hung boiler with storage tank, sealed chamber and fan assisted flue. ZEUS 24 kW Export ZEUS 28 kW Export General specifications. ZEUS kW is wall-hung boiler with a sealed chamber and a fan-assisted flue (type C) for central heating and domestic hot water supply (DHW) with a storage tank.
  • Page 4 R - CH return M - CH flow CONNECTIONS RC - DHW re-circulation (option) AC - DHW flow SYSTEM AF - Domestic cold water inlet V - Power supply connection 1/2” 3/4” 3/4” 1/2” 1/2” STZkW ed 10/07 ZEUS kW Export...

  • Page 5: Control Panel

    10 - DHW temperature selector 11 - Heating temperature selector 5 - Temperature LED - Flow probe malfunction 12 - Boiler manometer 6 - Temperature LED - No ignition malfunction 7 - Temperature LED - Overheating malfunction STZkW ed 10/07 ZEUS kW Export...
  • Page 6 10 - Motorized 3 - way valve 24 - Burner 11 - Filling valve 25 - Ignition and detection electrodes 12 - System expansion vessel 13 - DHW probe 14 - Stainless steel storage tank STZkW ed 10/07 ZEUS kW Export...
  • Page 7 15 - System expansion vessel 16 - Boiler pump 17 - Adjustable by - pass The hot water used for heating and DHW is produced by a pri- mary and secondary (DHW) circuit according to demand. STZkW ed 10/07 ZEUS kW Export...

  • Page 8: Operation

    Head available to the system at third pump speed (screw is tight- ened 1.5 turns from loose position) Head available to the system at second pump speed (screw is tight- ened 1.5 turns from loose position) Flow Return STZkW ed 10/07 ZEUS kW Export...
  • Page 9 (DHW or central heating request). PUMP RETURN COIL RETURN SYSTEM RETURN STZkW ed 10/07 ZEUS kW Export...

  • Page 10: Safety And Control Devices

    The vessel has a 10-litre capacity (7.7 liter useful capacity) and a 1.0 bar factory set pressure. It is located above the storage tank and is connected to the 3-way valve group by a copper pipe. STZkW ed 10/07 ZEUS kW Export...
  • Page 11 (R) closes and at the same time the way toward the storage tank coil opens up (4). The above arrangement prevents circulation within the central heating circuit and allows for circulation within the coil (4). STZkW ed 10/07 ZEUS kW Export...

  • Page 12: Storage Tank

    - a filter, 10 l/min (24 kW) and 12 l/min (28 kW) flow limiter, a storage tank draining valve with hose union (12) and a one-way valve (see hydraulic circuit paragraph, detail “5”) in order to ensure that increased pressure DHW does return STZkW ed 10/07 ZEUS kW Export...
  • Page 13 Modulation coil (1). The modulation coil is a low voltage coil managed by the integrated P.C.B. It acts on the gas valve stabilizer and proportionally adjusts the outlet pressure to the continuous current running through STZkW ed 10/07 ZEUS kW Export...

  • Page 14: Gas Adjustments

    (2) clockwise to increase the burner pressure and anti-clockwise to decrease it. Changing the type of gas. Use Immergas kits in order to adapt the boilers to a type of gas (natural gas or LPG) other than the gas the boiler was manufactured for.
  • Page 15 (11) which is connected to the negative pressure point of the flue pressure switch (6) and to the pressure point on the fan. The positive pressure point (10) is connected directly to the inside of the sealed chamber. STZkW ed 10/07 ZEUS kW Export...
  • Page 16 The accessories (bends, extensions, terminals) feature push-fit connections and the seal is guaranteed by lipped gaskets. Intake. In order to assemble the cover (1), remove the plug (3) closing the intake hole on the upper part of the sealed chamber. STZkW ed 10/07 ZEUS kW Export...
  • Page 17 (2) which can be turned in order to face any direction. Using the 60/100-80/125 adapter (3) and the appropriate extensions, connect to the air and flue terminal (4). Maximum allowed overall length without considering the first bend (2) is 7.3 straight horizontal meters. STZkW ed 10/07 ZEUS kW Export...
  • Page 18 Ø 125 mm concentric pipe. Maximum allowed length is 33 straight meters (air + flue). In order to avoid problems with condensate, flue duct length is to be limited to 12 meters. STZkW ed 10/07 ZEUS kW Export...

  • Page 19: Electric Circuit

    Connected to the integrated P.C.B. (E2) Disconnects power supply to the circuit when the input current Line fuse (F1) Fuse exceeds 3.15 A. 3.15 AF 250 V Assembled on the integrated P.C.B. Neutral fuse (F2) STZkW ed 10/07 ZEUS kW Export...

  • Page 20: Low Voltage Circuit

    See Digital Digital remote control as a weekly timer-thermostat. remote control (CRD) (optional) When CRD is installed, the pre-existing X40 jumper is to be operation (CRD) eliminated. STZkW ed 10/07 ZEUS kW Export...
  • Page 21 (E4) The probe is located on the main exchanger outlet. closed contact Loads. Gas valve modulation coil Powered by the P.C.B. with variable continuous current. It varies gas pressure to the burner. (Y2) STZkW ed 10/07 ZEUS kW Export...
  • Page 22 Operation with Comando Amico Remoto re- mote control. When the main switch (R10) is set to “SUMMER and CAR”, Comando Amico Remoto remote control (CAR) is enabled. If the conditions detected by Comando Amico Remoto remote STZkW ed 10/07 ZEUS kW Export...

  • Page 23: Dhw Mode

    (E1) and at the same time both gas valve coils (Y1). Integrated P.C.B. detects whether the burner has ignited via the ionization electrode (E2). STZkW ed 10/07 ZEUS kW Export...
  • Page 24 P.C.B. powers the pump (M1) via K2 relay and by switching DHW temperature trimmer (R5), the integrated P.C.B. powers the contact on K4 relay, it powers the motor (M) on 3-way the pump (M1) via K2 relay and by switching the contact on STZkW ed 10/07 ZEUS kW Export...
  • Page 25 4 °C, the P.C.B. gives the go-ahead for ignition and keeps the boiler running with the burner at minimum central heating output until the boiler temperature reaches 42°C. The anti-freeze function is not enabled if the boiler main switch is on (Stand-by). STZkW ed 10/07 ZEUS kW Export...
  • Page 26 It is a switch with clean contacts closing a circuit (low voltage) on heating OFF Room thermostat (S20) the integrated P.C.B. enabling central heating operation when Closed = Central (optional) ambient temperature is less than desired. heating STZkW ed 10/07 ZEUS kW Export...
  • Page 27 The single-pole relay controls the fan (M20) and is actuated when fan operation is re- (K3) quired. Adjustments. Gas type selector Depending on its position (Natural gas/LPG), the selector adapts modulation param eters Natural Gas/LPG to the type of gas firing the boiler. (S8) STZkW ed 10/07 ZEUS kW Export...
  • Page 28 When safety thermostat contacts are open, the boiler is shut down. malfunction In order to restart the appliance, turn (R10)main switch to “Reset” and then carry out a (E4) DHW or central heating request. STZkW ed 10/07 ZEUS kW Export...
  • Page 29 In order to avoid overheating the water-gas exchanger, when the boiler temperature read Flow overheating by NTC flow probe (B1) exceeds 95 °C, the fan starts until the temperature falls below ventilation 90 °C. STZkW ed 10/07 ZEUS kW Export...
  • Page 30 02 + 04 LEDs 2( ) and 7 ( ) Electro-mechanical contacts malfunction flashing alternately simultaneously flashing 02 + 20 LEDs 1 ( ) and 7 ( ) Parasitic flame malfunction flashing alternately simultaneously flashing STZkW ed 10/07 ZEUS kW Export...
  • Page 31 In order to exit the programming mode, do not operate the knobs for 30 sec onds, or when in the “set parameter” level, 100% Imax. (Factory setting) LED 8 position the main switch to on STZkW ed 10/07 ZEUS kW Export...
  • Page 32 (standard setting) LED 8 With storage tank Flashing Thermostat or Remote Control requests. LED (slowly) (continuous variable) 0 seconds (Factory setting) LED 1 54 seconds LED 2 131 seconds LED 3 180 seconds LED 4 STZkW ed 10/07 ZEUS kW Export...

  • Page 33: Central Heating Mode

    Thanks to the ionization electrode, the integrated P.C.B. detects whether the burner has ignited  Boiler operation Burner functions at variable outputs depending on the request type, the carried out adjustments/settings and the tempera- ture readings by NTC probes STZkW ed 10/07 ZEUS kW Export...

  • Page 34: Technical Data

    15°C inlet temperature; the values are read flue kit. immediately at the boiler outlet and considering mixing with cold water is necessary to obtain require temperature. STZkW ed 10/07 ZEUS kW Export...

  • Page 35: Combustion Parameters

    184 / 109 105 / 108 at 0% of O at Q. Nom./Min. 54 / 28 67 / 37 74 / 35 Flue temperature at nominal heat output °C Flue temperature at minimum heat output °C STZkW ed 10/07 ZEUS kW Export...
  • Page 36 126.9 13.0 11180 1.56 3.11 31.7 1.16 8.12 82.8 1.14 10.64 108.5 12.0 10320 1.44 2.56 26.1 1.08 6.69 68.2 1.06 8.83 90.0 11.0 9460 1.33 2.00 20.4 0.99 5.25 53.5 0.98 7.00 71.4 STZkW ed 10/07 ZEUS kW Export...
  • Page 37 3.015854 Additional system expansion vessel kit Cut-off cock kit code3.018433 code 3.4297 Top cover kit code 3.018434 The boiler can be used with DIM (Multi-system Water Cut-off) which is available in 5 recessed kits. STZkW ed 10/07 ZEUS kW Export...

This manual is also suitable for:

Zeus 24 kw exportZeus 28 kw export

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