Hermann Habitat 2 23E, Owner'S Manual

Page 1: ...Habitat 2 23 E 24 SE Quick guide Technical Data Installation adjusting and maintenance instructions User instructions GAS BOILERS ...

Page 2: ...ale from I to III determines the temperature of the heating system Regulate it on III in the chapter User instructions you will find suggestions to regulate the heating temperature on the base of the climate and other factors improving the comfort The green led is constantly on regulate the room temperature that you wish on the room thermostat according to the Instructions of your manufacturer the...

Page 3: ... 2 SE forced draught 19 Flue systems HABITAT 2 SE 21 Regulation and servicing 23 Access to the regulation devices 23 Preliminary GAS checkings 24 Gas valve pressure regulation MAX MIN 24 Gaining access to the main PCB 25 ELECTRONIC settings 26 Changing Gas type 27 Combustion check 28 Hydraulic section 28 Warnings for servicing 29 Components of the gas boiler HABITAT 2 23 E 30 Components of the gas...

Page 4: ...ave obtained the CE certification DM dtd April 2nd 1998 Law 10 91 art 32 and meet minimum efficiency requirements both at normal and 30 load provided by DPR 412 93 according to Law 10 91 art 4 sub section 4 They are in conformity with following Directives Directive on appliances burning gaseous fuels 90 396 Directive on electro magnetic compatibility CE 89 336 Efficiency Directive CE 92 42 Low Vol...

Page 5: ...ric pressure it must be connected to an heating system and or to a domestic hot water system in accordance with its features and power Packing items cartons nails plastic bags and so on must not be left within children easy reach as they are potentially dangerous Before any cleaning or servicing operation switch off the main electrical switch of the heating system and or any other suitable switch ...

Page 6: ... s s e r p y l p p u s n i M n o i t a v i t c a h c t i w s w o l f y t i r o i r p r o f r a b 5 0 5 0 x a m n i m e g n a r n o i t c e l e s e r u t a r e p m e T C 5 5 0 3 5 5 0 3 A T A D L A C I R T C E L E y c n e u q e r f e g a t l o V z H V 0 5 0 3 2 0 5 0 3 2 n o i t p m u s n o c r e w o P W 0 1 1 2 4 1 n o i t c e t o r p f o l e v e L D 4 X P I D 4 X P I S N O I S N E M I D h t p e D...

Page 7: ... technician DIMENSIONS 1 Flue products outlet 2 Air inlet for coaxial system 3 Air inlet for separate system 400 300 700 936D_R00 200 200 180 1 937A_R00 Habitat 2 E SE Habitat 2 E 207 193 233 147 75 1 2 3 938_R00 Habitat 2 SE ...

Page 8: ...ian AVAILABLE PUMP CAPACITY HABITAT 2 with selector in speed position I II III automatic by pass not disconnectable Water flow l h Pressure m H 2 O 0 0 5 1 1 5 2 2 5 3 3 5 4 4 5 5 5 5 6 0 200 400 1000 1200 600 800 1400 897 R00 772R01 ...

Page 9: ...LET RETURN DOMESTIC WATER GAS INLET HEATING FLOW OUTLET RETURN 1 By pass 2 Heating system safety valve 3 bar 3 Pump 4 Temperature sensor heating 5 Expansion vessel 6 Safety thermostat 7 Automatic venting device 8 Bithermic exchanger heating 9 Flue thermostat E models Flue pressure switch SE models 10 Fan SE models 11 Flue hood 12 Bithermic exchanger DHW 13 Temperature sensor DHW 14 Burner 15 Loss ...

Page 10: ...CEE 21 Dec 1989 Other Law number XXXX if any Other Law title and or brief description Directives Directive title and or brief description Always proceed with caution when handling the boiler and carrying out instal lation maintenance work as metal parts may cause injuries such as cuts and abrasions Wear gloves while doing the above mentioned operations Laws and rules referred to boilers installati...

Page 11: ...is mandatory and extremely important Ventilation must be made and sized in accordance with Laws and Rules in force INSTALLATION IN ROOMS WHERE TEMPERATURE CAN DROP DOWN TO 0 C When the installation place does not guarantee an adequate repair against atmospheric agents the gas boiler must be completely protected through an adequate coverage as a safety measure against the above agents Thanks to its...

Page 12: ...ence with B points Using the jig or respecting the measures indicated in the figure fix up electrical connections and all ducts for heating flow and return cold water hot water and gas Hang the boiler to the wallplugs or hooks using the holes A for the wallplugs and B for the open hooks Remove the plastic caps from the boiler connections prior to connecting boiler to the pipework REMARK To facilit...

Page 13: ...13 Installation for the technician 785 700 881_R00 32 5 35 14 330 52 52 88 22 39 40 30 46 5 52 5 14 35 335 400 32 5 36 11 14 39 665 A A B B C D A B ...

Page 14: ... flow 3 4 C Hot water outlet 1 2 A F Cold water inlet 1 2 A TA L Zone for electrical power supply and room thermostat connections G Gas 3 4 A Cold Water Inlet and Hot Wa ter Outlet connections are NOT SUITABLE for hemp teflon strip or similar it is MANDATORY to use connection pipes provided with re volving flange and plain gasket of suitable material tightening them properly and not excessively ...

Page 15: ...t water available from the boiler In case of stronger pressure it is necessary to install a PRESSURE REDUCER upstream the boiler The cleaning frequency of the heat exchanger depends on the water supply hardness Be sides the presence of solid residuals or impurities in the water for example in case of new sys tems could compromise the correct functioning of the boiler However it is possible to inst...

Page 16: ...from a qualified technician as indicated by the Law XXXXX because an incorrect installation can cause damages to people animals or things for which the manufacturer cannot be held responsible Verify what follows a cleaning of all system gas pipes in order to avoid the presence of residual combustion products that could compromise the correct boiler functioning b gas line and ramp conformity with l...

Page 17: ...ical supply of the appliance the use of adaptors multiple taps and extensions is not allowed If the supply cable must be replaced use one of the following wire types H05VVF or H05 VVH2 F It is mandatory the earth connection in accordance with the rules actually in force To re place the cable release the cable fastener placed on the frame of the hydraulic connections open the back cover of the cont...

Page 18: ...here all necessary advices according to national rules about CHIMNEY CONNECTIONS of OPEN chamber boilers PRODUCTS TEST POINT 2500 mm MAX SLOPE min 3 2 x d min d FLUE NO YES These diagrams are to explain the most important ITALIAN laws concerning chimney connections for EXEMPLE purpose only ...

Page 19: ...e of 2 5 downwards from the boiler to the out side see diagram This is essential to guaran tee correct boiler operation and reliability Air in let and flue outlet terminals should be protected by suitable approved flue accessories to avoid environmental elements penetration Place here all necessary advices according to national rules about CHIMNEY CONNECTIONS of sealed chamber boilers FLUE NO YES ...

Page 20: ... 0 8 0 0 0 1 o n g n i v a h e c a f r u s r e h t o n a g n i c a f e c a f r u s a m o r F s t m 3 f o e c n a t s i d a n i h t i w s l a n i m r e t r o s g n i n e p o e l o h n o i t a u c a v e e h t m o r f O 0 0 5 1 0 0 8 1 0 0 0 2 n i h t i w s l a n i m r e t r o s g n i n e p o h t i w t u b e v o b a s A e l o h n o i t a u c a v e e h t m o r f s t m 3 f o e c n a t s i d a P 0 0 5 2...

Page 21: ...PRODUCTS OUTLET TO FLUE AIR INLET AND PRODUCTS OUTLET THROUGH WALL Measures are relevant to upper edge of boiler s body SEPARATE PIPES WITH PIPES SPLIT VERTICAL OUTLET INLET SEPARATE PIPES VERTICALOUTLET Extension on request Extension on request D l e d o M s t c u d d e t a r a p e s m m 0 8 Ø S C A C x a m n i m m S C x a m m m g a r h p a i D r e t e m a i d m m o t p u m S C A C E S 4 2 0 3 2 ...

Page 22: ...GHT LINE IN STRAIGHT LINE HORIZONTAL COAXIAL SYSTEM Extension on request Measures are relevant to upper edge of boiler s body VERTICALCOAXIALSYSTEM HORIZONTALCOAXIAL SYSTEM AIR INLET AND PRODUCTS OUTLET THROUGH COAXIAL DUCT FLUE IN STRAIGHT LINE IN STRAIGHT LINE D a use the diaphragm supplied with the boiler l e d o M m e t s y s l a i x a o c 0 0 1 0 6 Ø O L x a m n i m m V L x a m n i m m m g a ...

Page 23: ...d ing with combustion checking because during this time the eventual residual of manufactur ing materials could produce some fumes and so alter the measured values Remark the knob on control panel has the position that is used during factory test only It has no use with regard to first ignition servicing or regulation For information use only we explain that this position activates the gas boiler ...

Page 24: ...ceed as it follows Supply the boiler and turn the Summer Winter knob to Summer position Provide that room thermostat contact is closed activated or open an hot water tap the heat produced by the boiler will be drained consequently Turn the Hot Water knob to the position Chimney sweeper and wait about 5 seconds that green lamp flashes with short lightnings When this occurs turn the Hot Water knob o...

Page 25: ...ontemporarily move the nut B Turn clockwise to increase pressure counterclockwise to decrease pressure reinsert the connector 4 and check that MAX pressure is not changed mount the cap C Important lock the adjustment device after any setting operation For the SE models reinsert the tube in the Vent 3 of the gas valve ATTENTION after this operation the value measured by the manometer could decrease...

Page 26: ...of a new heating request only after a delay of 3 minutes Zero delay move the jumper to TIMER O in the heating function when the set tempera ture is reached the burner will switch off and could re ignite immediately in case of a new heating request e g for systems with fan coil units Type of gas jumper CM2 Attention gas type changing requires other regulations and operations on the burner see Chang...

Page 27: ... injectors bar and replace the nozzles with the ones suitable for the available gas type using a 7 mm spanner see figure BURNER Reassemble injectors bar and pipe replacing gaskets Check with burner ON that there are no gas leaks On SE models close sealed combustion chamber L E D O M s e l z z o N y t i t n a u q Ø s e l z z o n s a G l a r u t a N m m 0 0 1 1 Ø s e l z z o n G P L m m 0 0 1 1 E 3 ...

Page 28: ... Water knob on the scale from I to IIIII The burner ignites at the maximum output not modulated make checkings and measurements switch off the burner by turning the Summer Winter knob to the 0 position The green lamp flashes with long lightnings Remark the burner will switch off automatically when reaching the maximum temperature and in any case after 15 minutes Hydraulic section DOMESTIC HOT WATE...

Page 29: ...ion chamber and proceed eventually to substitution Check boiler ignition switching off and operation Check water and gas connections tightness Check gas consumption at the minimum and maximum output Verify that safety devices are correctly working Verify correct functioning of control and adjusting devices Verify periodically good working and efficiency of the combustion product evacuation ducts a...

Page 30: ...emperature sensor 6 Ignition electrode 7 Electronic igniter 8 Safety valve 3 bar 9 Gas valve 10 Drain valve 11 Priority flowstat with filter 12 DHW flow regulator 13 Filling valve 14 Loss of water pressure switch 15 Pump 16 Heating circuit temperature sensor 17 Burner 18 Flame sense electrode 19 Bithermic exchanger 20 Automatic venting device 15 20 17 16 19 18 11 13 14 12 8 10 9 3 7 6 4 5 1 2 ...

Page 31: ...r 8 Safety valve 3 bar 9 Gas valve 10 Drain valve 11 Priority flowstat with filter 12 DHW flow regulator 13 Filling valve 14 Loss of water pressure switch 15 Pump 16 Heating circuit temperature sensor 17 Burner 18 Flame sense electrode 19 Bithermic exchanger 20 Automatic venting device 21 Sealed chamber 22 Fan Components of the gas boiler HABITAT 2 24 SE 2 14 13 12 11 22 21 20 19 18 17 16 15 10 8 ...

Page 32: ...NTC sensor DHW TA Voltage free Contact for Room Thermostat or Cronothermostat for trade safety extra low voltage SELV TF Flue thermostat TS Safety thermostat VG Gas valve coils Electric diagram for HABITAT 2 23 E The contacts of the M6 connector must be connected through a jumper otherwise the boiler does not work in the heating function Colours abbreviations BK Black BN Brown BU Blue GN Green GNY...

Page 33: ...re SR NTC sensor heating SS NTC sensor DHW TA Voltage free Contact for Room Thermostat or Cronothermostat for trade safety extra low voltage SELV TS Safety thermostat VG Gas valve coils Electric diagram for HABITAT 2 24 SE The contacts of the M6 connector must be connected through a jumper otherwise the boiler does not work in the heating function Colours abbreviations BK Black BN Brown BU Blue GN...

Page 34: ...n because a combustion products return can cause chronic or acute intoxications with danger of death If the thermostat must be replaced use the original spare part only In case of repeated interventions of the device check that the Flue Products Outlet System is efficient and made according to the laws in force see examples in paragraph Chimney connections WARNING for SE models The boiler is fitte...

Page 35: ...flats in case of a central heating system are responsible for the appliance operation and servicing they can both transfer the responsibility of the servicing and eventually of the operation to another person which must have the requirements indicated by the Law 46 90 Even if the user or the administrator decide to assume personally this responsibility ordinary servicing of the warm air heater and...

Page 36: ...s not possible to execute any function of the boiler included the anti freezing and anti lockout functions ON the boiler is working ready to ignite the burner to supply heating and or hot water NORMAL FLASHING STAND BY the boiler is supplied but the Summer Winter knob 6 is in position 0 The boiler does not execute the main functions but the anti freezing and anti lockout functions only for details...

Page 37: ... be set through a room thermostat or preferably through a chrono thermostat In this case we suggest to regulate the knob in order to reach soon the set temperature value avoiding the overheating of the rooms In both cases the optimal regulation must be found considering the climatic zone the year period and the heat insulation of the flat We remind you that rooms temperature must be regulated thro...

Page 38: ...been made on the gas pipes It is normal that the boiler goes repeatedly in Lock Out when the Inlet Gas is mixed with air This impedes the correct ignition and then provokes the Lock out In the conditions described above it is necessary to repeat more times the ignition of the boiler turning the SUMMER WINTER Knob in the Unlock Position until the red lamp turns off The water pressure shown by the g...

Page 39: ...xample to combustion product reflowing into inlet duct leaks in inlet outlet ducts or errors in sizing of ducts ducts length above or below the allowed and or wrong use of restrictor on boiler s outlet the device which signals the wrong Flue Outlet has intervened Exceptionally the cause can be a strong wind gust Turn the SUMMER WINTER knob in the Unlock Position until the red lamp turns off then m...

Page 40: ...uld be off the flame is effectively on due to a gas valve malfuncion otherwise the problem may be located on the control electronic that detects the flame although it is off Restore the service turning the SUMMER WINTER knob in the Unlock Position until the red lamp turns off or wait for the automatic reset within 5 minutes In case of frequent Locks call the Service Centre ...

Page 41: ...ing Protection REMARK the boiler is equipped with a system which protects the main components from the exceptional cases of LOCK OUT due to the inactivity in presence of water and scale The Anti Lock out System can t work during the Safety Lock Out Process because of the lack of electrical supply Before boiler re ignition call a technician to check if the burner is locked due to boiler inactivity ...

Page 42: ...t be constantly ON see details in the paragraph Controls and Indicators if the Lock Out red lamp is on or flashing see the paragraph Alarms check on the gauge that the boiler pressure is correct 1 1 5 bar in a cold state or at least not lower than 0 5 bar consult the notes of the Electrical Diagram Section SHORTAGE OF DOMESTIC HOT WATER PRODUCTION check that knob is not set on a too low value or t...

Page 43: ...object on the gas boiler The gas boiler utilization is forbidden to children and to inexperienced people If the gas boiler is going to be definitively unused call a qualified technician to carry out all required operations checking in particular disconnection of gas water and electrical supplies Only on E models natural draught the installation of aspirators fireplaces or similar appliances in the...

Page 44: ...constantly improve its products Hermann Ltd has the right to change features and data written in the present manual at any time and without notice therefore this manual cannot be considered as a contract towards third parties HERMANN S r l Via Salvo d Acquisto 29010 Pontenure PIACENZA ITALY Tel 39 0523 510341 E MAIL export hermann it www hermann it GAS BOILERS ...