Hermann Supermicra 23 E Instruction Manual Download | Manualshive

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30

Regulation and servicing

for the technician

Components of the gas boiler
SUPERMICRA 23 E - 28 E

1 Flue thermostat
2 Safety thermostat for

max. water temperature

3 Expansion vessel
4 Ignition electrode
5 Domestic exchanger
6 Gas valve
7 Priority pressure sensor
8 Hydraulic 3-way valve
9 Water supply valve

10 Drain valve
11 Sensor for temperature control
12 Burner
13 Flame sense electrode
14 Primary heat exchanger
15 Automatic venting device
16 Flue hood
17 Pump
18 Safety pressure switch

for min. water pressure

1

2

3

4

5

18

707_R01

14

12

13

11

15

16

17

6

7

8

9

10

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Summary of Contents for Supermicra 23 E

Page 1: ...irst ignition to a Hermann Authorized Service Center the particular and exclusive Hermann Conventional Warranty is activated For further information consult the coupon which you can find in the boiler s documents envelope Assigning all the operations for the first ignition to a HermannAuthorized Service Center the particular and exclusive Hermann Conven tional Warranty is activated For further inf...

Page 2: ...ce or other objects Introduction 3 Technical data 4 Installation 8 Safety laws and rules referred to technicians assigned to boilers installation 8 Laws and rules referred to boilers installation 8 Boiler location 9 Boiler hanging 10 Replacement of Micra boiler 11 Hydraulic connections 12 System filling 13 Gas connection 13 Electrical connections 14 Chimney connections SUPERMICRA E natural draught...

Page 3: ...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 4: ... 8 0 8 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 0 7 0 3 0 7 0 3 0 7 0 3 0 7 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 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 n a f y t i c a p a c h g i h h t i w P A V W 0 0 1 0 3 1 P A V 0 6 1 0 5 1 0 8 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 D 4 X P I D 4 X P I S...

Page 5: ... C I M R E P U S 0 0 4 0 5 7 7 4 3 7 0 2 3 9 1 1 6 1 6 4 2 5 7 5 2 3 DIMENSIONS 1 t e l t u o s t c u d o r p e u l F 2 m e t s y s l a i x a o c r o f t e l n i r i A 3 m e t s y s e t a r a p e s r o f t e l n i r i A Supermicra 24 30 SE models only Supermicra E SE L X P Q Y H 703 23 46 52 52 88 39 116 5 136 4 695_R02 G TA L F C M R R Heating return 3 4 M Heating flow 3 4 C Hot water outlet 1 2 ...

Page 6: ...table AVAILABLE PUMP CAPACITY MOD SUPERMICRA 28 E 30 SE with selector in speed position I II III automatic by pass not disconnectable 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 711 R00 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 712 R00 Water flow l h Pressure m H 2 O Water flow l h Pressure m H 2 O 772R01 ...

Page 7: ...switch SE models 13 Fan SE models 14 Safety thermostat 15 Venting device 16 NTC temperature sensor 17 Hydraulic 3 way valve 18 Priority pressure switch 19 Domestic exchanger 20 Filling valve 21 Gas valve 22 Loss of water switch DOMESTIC WATER GAS INLET HEATING FLOW OUTLET RETURN WARNING This scheme is made for in formation only To make boiler hydrau lic connection either use fixing jig or the draw...

Page 8: ...EE 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 installatio...

Page 9: ...ation 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 antifreeze system inner components could n...

Page 10: ...fix the boiler with wallplugs stud type with nut center the relevant wall holes as regards to A points To hang it with open hooks place hooks in correspondence 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 A1...

Page 11: ...t ducts necessary to impede the flowing back of the liquids in the combustion chamber condensation rain and so on see also Connections to SUPERMICRA s chimneys remains of 2 in the SE MODELS with Forced Draught If this slope is not installed the Installation of Supermicra SE which is lightly higher than MICRA allows to restore it If it weren t possible to observe these instructions E g for the abse...

Page 12: ...ot 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 coil exchanger depends on the water supply hardness Besides the presence of solid residuals or impurities in the water for example in case of new systems could compromise the correct functioning of the boiler However it is possible to insta...

Page 13: ...out 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 wi...

Page 14: ...ectrical supply of the appliance the use of adaptors multiple taps and exten sions 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...

Page 15: ... 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 16: ...pe 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 17: ... 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 18: ...stall the high capacity fan before flue kit avoiding any possible hindrance during assembling operations Provide electrical disconnection of the gas boiler and remove the sealed chamber clos ing 1 Take off screws A loosen screws B it is not necessary to take off screws B being the fan bracket provided with button holes and remove the standard fan disconnect ing its cables for electrical supply rem...

Page 19: ...meters 45 bend 0 25 meters 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 0 2 a 8 h g i h h t i w E S 4 2 n a f y t i c a p a c 0 6 1 3 0 4 O N E S 0 3 6 1 2 0 1 a 8 s t c u d m m 0 8 Ø n o i t c e n n o c l a i x a o c n o r e t t i l p S s e p i P h t i w E S 4 2 4 1 2 3 1 O N E S 0 3 0 1 2 7...

Page 20: ...hragm D as indicated in the figure besides any additional 90 bend 1 linear meter 45 bend 0 5 meters D a use the diaphragm supplied with the boiler b available on request 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 r h p a i D r e t e m a i d m m O L o t p u m V L r o E S 4 2 4 5 0 5 1 b 4 4 a 1 2 1 E S 0 3 3 1 4 1 b 6 4 1 ...

Page 21: ...values Access to the regulation devices 1 Unscrew the screws 1 and let the catches slide 2 in order to release the front casing 3 2 Push the front casing 3 upwards and remove it 3 Unscrew the two screws 4 and overturn downwards the control panel 5 4 After the regulations close the boiler repeating eve rything in the other sense paying attention to hook the frontal casing to the heads of the four s...

Page 22: ...ic model reinsert the connector 4 if it is necessary to adjust the regulation proceed as it follows referring to the figure take off the protection cap C adjust MAX pressure acting on the nut B 10 mm Turn clockwise to increase pressure counterclockwise to decrease pressure extract again one of the connectors 4 adjust MIN pressure acting on the screw A with a 4 mm screwdriver paying attention not t...

Page 23: ...e project The gas pressure values related to the different outputs are indicated in the table BURNER PRESSURES To adjust the burner pressure proceed as follows referring to the figure Remove the back closing of the control panel releasing the screws 1 see figure Set Summer Winter selector to Winter position and adjust the eventual room thermostat to a temperature value higher than the present one ...

Page 24: ...3 2 3 1 3 2 X A M 0 6 8 9 1 3 2 1 5 2 1 4 7 2 9 7 2 0 5 3 7 5 3 BURNER PRESSURES for SUPERMICRA 28 E T U P T U O T A E H 0 2 G S A G L A R U T A N 0 3 G E N A H T U B 1 3 G E N A P O R P W k h l a c k r a b m H m m 2 O r a b m H m m 2 O r a b m H m m 2 O 4 1 1 N I M 0 0 8 9 8 2 9 2 5 5 6 5 5 5 6 5 2 1 0 2 3 0 1 1 3 1 3 1 6 2 6 2 6 3 6 3 1 0 8 1 1 1 5 3 6 3 1 7 2 7 3 7 4 7 4 1 0 4 0 2 1 0 4 1 4 1 8...

Page 25: ...2 3 2 1 5 2 1 7 7 2 3 8 2 5 4 3 2 5 3 BURNER PRESSURES for SUPERMICRA 30 SE T U P T U O T A E H 0 2 G S A G L A R U T A N 0 3 G E N A H T U B 1 3 G E N A P O R P W k h l a c k r a b m H m m 2 O r a b m H m m 2 O r a b m H m m 2 O 6 1 1 N I M 6 7 9 9 1 2 1 2 7 4 8 4 7 4 8 4 2 1 0 2 3 0 1 2 2 3 2 0 5 1 5 1 5 2 5 3 1 0 8 1 1 1 6 2 7 2 8 5 0 6 0 6 1 6 4 1 0 4 0 2 1 0 3 1 3 7 6 9 6 0 7 1 7 5 1 0 0 9 2 ...

Page 26: ...ax 37 mbar 8 Repeat the following regulations gas valve MAX MIN pressure regulation Slow Opening and Max Heating Output carefully following the instructions described in the previous pages 9 Check that there are no gas leaks 10 apply the sticker indicating the type of gas supplied with the kit on the suitable area on WARN ING label inside the boiler BURNER L E D O M r e b m u N s e l z z o n f o r...

Page 27: ...ummer Winter in the central 0 position The green lamp flashes slowly REMARK the burner will turn off automatically at the achievement of the system highest tempera ture and however after 15 minutes Hydraulic section DOMESTIC HOT WATER FLOW ADJUSTMENT The boiler is checked and adjusted prior to leaving the fac tory However after installation it is advisable to check the settings To carry out adjust...

Page 28: ...ators ON Delay OFF for fan coil systems SW3 4 It determines the extinction and new ignition temperature for DHW OFF Burner OFF at 75 C and burner ON at 70 C ON burner OFF at the arranged temperature for DHW T SET 5 C and burner ON at T SET this arrangement is suggested for water with a high percentage of scale and not treated SW3 5 and 6 Pump Functioning Way in Heating System 5 OFF 6 OFF intermitt...

Page 29: ...the combustion 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 evacuat...

Page 30: ...Ignition electrode 5 Domestic exchanger 6 Gas valve 7 Priority pressure sensor 8 Hydraulic 3 way valve 9 Water supply valve 10 Drain valve 11 Sensor for temperature control 12 Burner 13 Flame sense electrode 14 Primary heat exchanger 15 Automatic venting device 16 Flue hood 17 Pump 18 Safety pressure switch for min water pressure 1 2 3 4 5 18 707_R01 14 12 13 11 15 16 17 6 7 8 9 10 ...

Page 31: ...iority pressure sensor 8 Hydraulic 3 way valve 9 Water supply valve 10 Drain valve 11 Sensor for temperature control 12 Burner 13 Flame sense electrode 14 Primary heat exchanger 15 Automatic venting device 16 Fan 17 Sealed chamber 18 Pump 19 Safety pressure switch for min water pressure Components of the gas boiler SUPERMICRA 24 SE 30 SE 1 2 3 5 19 14 12 11 16 15 18 6 7 8 9 10 17 708_R03 4 13 ...

Page 32: ...sed in pressure S NTC sensor TA Voltage free Contact for Room Thermostat or Cronothermostat for trade safety extra low voltage SELV TF Flue thermostat TS Safety thermostat Electric diagram for SUPERMICRA 23 E 28 E EVZ1 2 3 Electrovalve zone1 2 3 AUX1 2 3 Auxiliary contact forEVZ1 2 3 TAZ1 2 3 Room thermostat forzone1 2 3 Colours abbreviations BK Black BN Brown BU Blue GN Green GNYE Green Yellow GY...

Page 33: ...ssure switch contact NO closed in pressure S NTC sensor TA Voltage free Contact for Room Thermostat or Cronothermostat for trade safety extra low voltage SELV TS Safety thermostat Electric diagram for SUPERMICRA 24 SE 30 SE EVZ1 2 3 Electrovalve zone1 2 3 AUX1 2 3 Auxiliary contact forEVZ1 2 3 TAZ1 2 3 Room thermostat forzone1 2 3 Colours abbreviations BK Black BN Brown BU Blue GN Green GNYE Green...

Page 34: ...vice must be always in function 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 page 15 WARNING for SE models The boiler ...

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: ...pplied but not on in stand by Turn the Selector 2 in the suitable position SUMMER or WINTER The green lamp 1 will flash constantly to show that the boiler is on ATTENTION Do not activate the Chimneysweeper Function which is reserved for the installer and which forces the ignition of the burner the green lamp flashes rapidly If by mistake it should happen bring immediately the selector in the centr...

Page 37: ...r the turning off of the boiler Regulate the DHW Thermostat 4 in the position respective to the desired domestic hot water temperature The burner will turn on automatically when it is requested If after the request the ignition does not take place check that the red lamp 7 is not on if it s on turn the selector 2 in the central Off Unlock Position wait until the red lamp 7 turns off and then bring...

Page 38: ...of domestic hot water BOILER S LOCK OUT RED LAMP 7 The red lamp can be off flashing and on OFF the functioning of the boiler is correct FLASHING The System Temperature Sensor inside the boiler is damaged Call a Qualified Technician for repairing ON it signals problems that can be normally solved by the user The boiler has been just installed or works have been made on the gas pipes It is normal th...

Page 39: ...and laws in addition to the slopes and measurement included in the paragraphs Chimney connections and Flue systems Note for the TECHNICIAN The burner flame is not detected by the Flame Control Unit becouse it has not turned on or it has suddendly turned off or it has detached from the burner because of an incorrect combustion This can be due in exemple to combustion product reflowing into inlet du...

Page 40: ...otice that if it had been necessary to restore the pressure because of possible loss in an heating system already filled with an Anti freezing solution the concentration of the system could have decreased and it could not guarantee the Anti freezing 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...

Page 41: ...burner could not ignite because of an incorrect flue flow or a fault to the relevant safety device Ask the technician to check that inlet and outlet ducts are clean and in a good state During installation all laws and rules in force and slopes and lenghts described in Chimney connections and Flue systems must be respected Ask the technician to check the correct functioning of the flue safety devic...

Page 42: ... 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 SUPERMICRA E models natural draught the installation of aspirators fireplaces or similar appliances i...

Page 43: ......

Page 44: ...ermann it Hermann Ltd declines any responsibility for eventual printing and or transcription errors in the present manual In order to 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 ...

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