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  USER AND MAINTENANCE  

 INSTRUCTIONS

2.1  CLEANING AND MAINTENANCE.

Important:

 the heating plants must undergo 

periodical maintenance (regarding this, see in 

the section dedicated to the technician, the point 

relative to “yearly control and maintenance of the 

appliance”) and regular checks of energy efficiency 

in compliance with national, regional or local 

provisions in force.

This ensures that the optimal safety, performance 

and operation characteristics of the boiler remain 

unchanged over time. We recommend stipulating 

a yearly cleaning and maintenance contract with 

your zone technician.

2.2  GENERAL WARNINGS.

Never expose the wall-mounted boiler to direct 

vapours from a cooking surface.

Use of the boiler by unskilled persons or children 

is strictly prohibited.

Do not touch the fumes exhaust terminal (if 

present) due to the high temperature it reaches;

For safety purposes, check that the concentric 

air intake/flue exhaust terminal (if fitted), is not 

blocked.

If temporary shutdown of the boiler is required, 

proceed as follows:

a)    drain the heating system if anti-freeze is not 

used;

b)     shut-off all electrical, water and gas supplies.

In the case of work or maintenance to structures 

located in the vicinity of ducting or devices for 

flue extraction and relative accessories, switch off 

the appliance and on completion of operations 

ensure that a qualified technician checks efficiency 

of the ducting or other devices. Never clean 

the appliance or connected parts with easily 

flammable substances. Never leave containers or 

flammable substances in the same environment 

as the appliance.
• 

Caution:

 the use of components involving use 

of electrical power requires some fundamental 

rules to be observed:

- do not touch the appliance with wet or moist 

parts of the body; do not touch when barefoot.

-  never pull electrical cables or leave the appliance 

exposed to atmospheric agents (rain, sunlight, 

etc.);

-  the appliance power cable must not be replaced 

by the user;

-  in the event of damage to the cable, switch off 

the appliance and contact exclusively qualified 

personnel for replacement;

-  if the appliance is not to be used for a certain 

period, disconnect the main power switch..

Key:

  1  -  Flame presence LED

  2  -  Domestic hot water LED

  3  -  Heating function LED

  4  -  Temperature LED – Insufficient 

circulation anomaly

  5  -  Temperature LED – Delivery probe 

anomaly

2.3  CONTROL PANEL.

  6  -  Temperature LED – ignition block

  7  -  Temperature LED – Over-temperature 

block

  8  -  Temperature LED – Fumes pressure 

switch anomaly

  9  -  Stand-by-Domestic water / Remote 

Control - Domestic water and Heating-

Reset Selector switch

  10  -  Domestic hot water temperature 

selector switch

  11  -  Heating water temperature selector 

switch

  12  -  Boiler manometer

Summary of Contents for ZEUS 24 Superior

Page 1: ...ZEUS 24 28 kW IE Instruction booklet and warning 1 038761ENG...

Page 2: ...ct correctly Maintenance must be carried out by skilled technical staff The Immergas Authorised After sales Service represents a guarantee of qualifications and professionalism The appliance must only...

Page 3: ...sure sufficient space for normal servicing therefore it is advisable to leave a clearance of at least 3 cm between the boiler casing and the vertical sides of the cabinet Leave adequate space above th...

Page 4: ...ranty before making the boiler connections carefully clean the heating system pipes radiators etc with special pickling or de scaling products to remove any deposits that could compromise correct boil...

Page 5: ...t function disabled i e it must be set to On Off mode The CRD cannot be used for plants divided into zones Electrical connection of the Remote Friend ControlV2 or chronothermostat On Off Optional The...

Page 6: ...s Cut the seal in the relative groove at the desired diameter 80 run it along the bend and fix it using the sheet steel plate Insert the exhaust pipe with the male end smooth into the female side of t...

Page 7: ...the boiler the fumes separator positioned on the air fumes extraction well must be adjusted Fig 1 12 Adjustment is carried out by loosening the front retainer screw and moving the indicator to the cor...

Page 8: ...Exhaust m 2 0 Terminal complete with concentric hori zontal intake exhaust 80 125 Intake and Exhaust 33 m 2 0 m 5 5 Intake m 14 3 Exhaust m 11 0 Terminal complete with concentric horizontal intake exh...

Page 9: ...t kits 80 125 Kit assembly Fig 1 18 install the bend with flange 2 on the central hole of theboiler inserting the seal 1 and tighten using the screws in the kit Fit the male end smooth of the adapter...

Page 10: ...flues and air intake pipes according to the diagram shown in the figure Fig 1 22 Fumes are expelled from duct S Air is taken in through duct A for combustion Intake duct A can be installed either on...

Page 11: ...red use 80 pipes with insulation see insulated separator kit 80 80 chapter Insulated separator kit 80 80 Kit assembly Fig 1 26 install flange 4 on the central hole of the boiler fitting seal 1 and tig...

Page 12: ...kit optional air intake takes place directly from the environment in which the boiler is installed and the fumes are expelled in an individual flue or directly to the outside The boiler in this config...

Page 13: ...tail to ensure maximum reliability Thelowerinspectionflangeensurespracticalcontrol oftheboilerandthecoiledheatexchangerandeasy internal cleaning The domestic water attachments are found on the flange...

Page 14: ...irculation pump 9 Gas valve 10 3 way valve motorised 11 System filler tap 12 System expansion tank 13 Domestic hot water probe 1 17 ZEUS 24 28 KW BOILER COMPONENTS 14 Stainless Steel Boiler 15 3 bar s...

Page 15: ...devices for flue extraction and relative accessories switch off the appliance and on completion of operations ensure that a qualified technician checks efficiency of the ducting or other devices Neve...

Page 16: ...it and that the system is free of air deaerated circulating pump blocked free the circulating pump If this phenomenon occurs frequently contact a qualified technician for assistance e g Immergas Techn...

Page 17: ...elow 4 C and stops once it exceeds 42 C The antifreeze function is guaranteed if the boiler is fully operative and not in block status and is electrically powered To avoid keeping the system switched...

Page 18: ...nd or exhaust terminals are not blocked check activation of the no air safety pressure switch ensure activation of all adjustment devices seal the gas flow rate regulation devices if settings are modi...

Page 19: ...ESHOOTING N B Maintenance must be carried out by a qualified technician e g Immergas Technical Assistance Service Smell of gas Caused by leakage from gas circuit pipelines Check sealing efficiency of...

Page 20: ...f gas by turning in a clockwise direction the heating potential increases and in an anti clockwise direction it decreases Adjust the boiler minimum thermal input Fig 3 3 N B only proceed after having...

Page 21: ...seconds LED 7 650 seconds Standard setting LED 8 Heating switch on delay request from Room thermostat and Remote Friend ControlV2 The boiler is set to switch on immediately after a request In the cas...

Page 22: ...n the casing Unhook the lower part of the casing as described in the figure Pull the casing 4 forwards and up at the same time see figure to detachit from the upper hooks 3 15 YEARLY APPLIANCE CHECK A...

Page 23: ...erted in the test pressure outlet of the modulating adjustable gas valve and on the sealed chamber positive pressure test outlet The power data given in the table is obtained with intake exhaust pipe...

Page 24: ...ppm 123 71 161 84 165 80 Flue temperature at nominal heat output C 108 109 107 Flue temperature at minimum heat output C 87 91 91 Zeus 28 kW Gas nozzle diameter mm 1 35 0 79 0 79 Supply pressure mbar...

Page 25: ...loss at case with burner On Off 0 40 0 89 0 60 0 62 Heat loss at flue with burner On Off 5 50 0 03 5 50 0 01 Heating circuit max working pressure bar 3 3 Heating circuit max working temperature C 90...

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Page 28: ...mmergas com Immergas S p A 42041 Brescello RE Italy Tel 0522 689011 Fax 0522 680617 Certified company ISO 9001 This instruction booklet is made of ecological paper Cod 1 038761ENG rev ST 002107 000 10...

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