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21

Regulation and servicing

fo

r the technician

I

NSTRUCTIONS

 

FOR

 

FIRST

 

IGNITION

,

REGULATION

 

AND

 

MAINTENANCE

ATTENTION: the operations described below
must be carried out only by qualified personnel

[authorized by HERMANN]

.

When regulation/measuring is over, remember
to tighten pressure tapping point screws and
check for gas leaks!

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 screws [4] and overturn downwards the

control panel [5];

4. After the regulations, close the boiler repeating everything in the other sense, paying attention

to insert the flexible shaft of the DHW temperature knob in its clutch on manual mixing valve.
Hook the frontal casing to the heads of the four screws [6] (which must not be released) and
remember to stop it through the catches [2] and through the screws [1].

Opening of the sealed
chamber

In order to execute all the operations for the cleaning and
maintenance of the boiler it is necessary to put the closing of
the sealed chamber down, making the following actions:

— Release the screws [1]

— Release the screw with hexagonal head [2] (only model

30 SE)

— Pull out the closing of the sealed chamber.

When all the operations have been done, put the closing of
the sealed chamber up making the previous actions in the
opposite order.

ATTENTION: it is important to put up ALL the screws
for the fixing of the closing in order to ensure the seal
of the sealed chamber and avoid eventual vibrations
and noise.

3

774R01

6

6

5

6

6

4

1

2

4

1

1

2

7

8

0R

0

0

Summary of Contents for Supermaster 23 e

Page 1: ...0 Assigning all the operations for the first 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 Hermann Authorized Service Center the particular and exclusive Hermann Convention...

Page 2: ... Opening of the sealed chamber 21 Prefilling of the DHW expansion vessel 22 Preliminary GAS checkings 22 Gas valve pressure regulation MAX MIN 23 Slow opening regulation 24 Regulation of MAX heating power 24 Changing Gas type 27 Combustion check 28 Draining heating system and tank serpentine 28 Draining the tank 29 Check and replacement of the magnesium anode 29 Hydraulic section 30 Electronical r...

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: ... m t e l t u o W H D f o e g n a r e r u t a r e p m e T e g n a r t r o f m o c r e p u S e v l a v g n i x i m l a u n a m C 8 4 5 3 8 4 5 3 8 4 5 3 8 4 5 3 f o x a m n i m e g n a r n o i t a l u g e r d e w o l l a c i n o r t c e l E n o e v l a v g n i x i m l a u n a m r e l i o b e h t n i W H D n o i t i s o p r e l i o b r e p u S C 5 6 5 5 5 6 5 5 5 6 5 5 5 6 5 5 A T A D L A C I R T C E...

Page 5: ...master E SE master E SE master E SE master E SE master E SE 411 189 207 250 82 496 3 2 1 7 6 2 R 0 0 104 600 900 438 462 496 mod E mod SE 138 104 761R02 207 848 871 860 11 18 95 124 52 163 69 89 132 145 208 G TA L RI F C M R F RI C R M G 4 C Hot water outlet 1 2 RI Re circulation Return 1 2 only if optional kit is installed F Cold water inlet 1 2 R Heating return 3 4 M Heating flow 3 4 TA L Zone f...

Page 6: ...E SUPERMASTER 28 E 30 SE SUPERMASTER 28 E 30 SE with selector in speed position I II III 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 Portata l h Prevalenza m H 2 O 711_1 R00 By pass automatico By pass escluso Water flow l h Pressure m H 2 O Automatic by pass Excluded by pass 0 0 5 1 1 5 2 2 5 3 3 5 4 4 5 5 5 5 6 5 6 0 200 400 1000 1200 600 800 1400 712_1 R00 Portata l h ...

Page 7: ...Air outlet valve 13 Heating circuit expansion vessel 14 Heating temperature sensor 15 Safety thermostat 16 Flue thermostat E models Flue pressure switch SE models 17 Fan SE models 18 Chimney E models Flue Conveyor SE models 19 Primary exchanger 20 Burner 21 Gas valve 22 Thermometer Heating circuit Gauge 23 Heating circuit drain tap 24 System By pass 25 Filter 26 Litercounter DOMESTIC WATER GAS INL...

Page 8: ...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 installation 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: ...ntilation of the installation room 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 aga...

Page 10: ...res 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 facilitate boiler connection it is possible to remove temporari...

Page 11: ...ATER SUPPLY The pressure of entrance cold water inlet pressure must be lower than 6 bar Furthermore for an optimal boiler functioning water pressure should be more than 1 bar A too low inlet pressure could impede the correct restore of the heating system pressure whereas a too high inlet pressure will cause the opening of the tank safety valve and for this reason the water outlet In case of strong...

Page 12: ...he boiler in areas where the room temperature can decrease under 0 C we suggest to fill the heating system with an anti freezing liquid and to execute the filling of the tank in a second time in the process of first ignition of the boiler Once all system connections have been carried out proceed with filling of the water heater tank and of the heating system This operation should be made with caut...

Page 13: ... equal to the boiler one e supply gas must correspond to the one for which the boiler has been regulated otherwise call an HERMANN Servicing Centre a qualified technician for gas conversion f an interception valve must be installed upstream the appliance Open the meter valve and purge the air that is inside the system pipes including all the appliances While connecting gas inlet pipe of the boiler...

Page 14: ...F It is mandatory the earth connection in accordance with the rules actually in force To replace the cable release the cable fastener placed on the frame of the hydraulic connections open the back cover of the control panel and disconnect it from the terminals Install the new cable working in the reverse way It s IMPORTANT to lock tha cable in the cable fastener placed on the frame of the hydrauli...

Page 15: ... here all necessary advices according to national rules about CHIMNEY CONNECTIONS of OPEN chamber boilers FLUE NO YES These diagrams are to explain the most important ITALIAN laws concerning chimney connections for EXEMPLE purpose only PRODUCTS TEST POINT 2500 mm MAX SLOPE min 3 2 x d min d ...

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: ... install 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 closing 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 disconnecting its cables for electrical supply re...

Page 19: ...ed in the figure besides any additional 90 bend 0 5 linear 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 r e t t i l p S s e p i P h t i W n o i t c e n n o c l a i x a o c n o 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 o t p u m S C A C 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 o t p u m S C A C E S 4 2 R E T S A M R E P U S 0 3 2 0 2 8 4 1 2 3 1 O N E S 4 2 ...

Page 20: ... m V L x a m n i m m m g a r h p a i D a o t m V L r o O L E S 4 2 R E T S A M R E P U S 4 5 0 5 1 2 E S 0 3 R E T S A M R E P U S 3 1 4 1 1 Flue sistems SUPERMASTER SE AIR INLET AND PRODUCTS OUTLET THROUGH COAXIAL SYSTEM Attention see table and if required install the diaphragm supplied with the gas boiler as indicated in the figure besides any additional 90 bend 1 linear meter 45 bend 0 5 meters...

Page 21: ... of the DHW temperature knob in its clutch on manual mixing valve Hook the frontal casing to the heads of the four screws 6 which must not be released and remember to stop it through the catches 2 and through the screws 1 Opening of the sealed chamber In order to execute all the operations for the cleaning and maintenance of the boiler it is necessary to put the closing of the sealed chamber down ...

Page 22: ...et and load the vessel with air with the same pressure of the water network Reopen gradually the installed tap on the boiler cold water inlet Preliminary GAS checkings All boilers are tested and factory set during manufacture however it is advisable to check that the gas type and the burner pressures are correct On the contrary follow the procedures described in this section To make burner pressur...

Page 23: ...igure make the following actions make sure that the modulation coil is energised remove protection cap C On SE models take off the silicon tube from the VENT on the gas valve item 3 in the figure adjust maximum pressure by turning knob B with a 10 mm spanner Clockwise to increase counterclock wise to decrease remove electrical connector on modulation coil keeping knob B locked adjust minimum press...

Page 24: ...g mod 28 E 8 mbar 82 mm w g mod 24 SE 14 mbar 143 mm w g mod 30 SE 14 mbar 143 mm w g turn the trimmer P4 RLA in clockwise sense to increase the pressure and in anticlockwise sense to decrease the pressure till the achievement of the correct value Regulation of MAX heating power The maximum heating output must be set in accordance with the system requirements stated in the project The gas pressure...

Page 25: ...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 SUPERMASTER 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 ...

Page 26: ... 7 2 7 7 2 5 4 3 2 5 3 BURNER PRESSURES for SUPERMASTER 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 0 1 1 N I M 0 5 4 9 1 2 1 2 4 4 5 4 4 4 5 4 2 1 0 2 3 0 1 5 2 5 2 2 5 3 5 3 5 4 5 3 1 0 8 1 1 1 9 2 0 3 1 6 2 6 3 6 4 6 4 1 0 4 0 2 1 3 3 4 3 0 7 2 7 3 7 5 7 5 1 0 0 9 2 1 8 3 9 3 0 8 ...

Page 27: ...n 25 max 35 mbar or Propane min 25 max 37 mbar check for gas leaks 7 repeat following regulations Domestic Water Output max and min Slow Opening Pressure and Heating Output carefully reading the instructions given in the previous pages CONVERSION FROM L P G TO NATURAL GAS 1 Disconnect the boiler from the electrical supply 2 On SE models open sealed combustion chamber 3 Remove pipe between gas valv...

Page 28: ...d off by the heating system to turn off the burner turn the selector Summer 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 Draining heating system and tank serpentine To correctly unload both the heating system and the tank s serpentine the boiler must be...

Page 29: ...outlet open the tap turning in anticlockwise order the grained ring when this operation is finished close the outlet tap turning the ring in clockwise order Check and replacement of the magnesium anode To protect the tank from the corrosion attacks it is necessary to check every 6 months the magnesium anode and replace it if it s damaged Unload the tank completely see previous paragraph release th...

Page 30: ...o intervene with big caution on this regulation and to intervene only in the cases of very strong types of water Remark it is possible to set this regulation on minimum to make the boiler work in room anti freeze mode during an inactivity period in the case that is installed a common room thermostat or chronothermostat featuring this possibility see also Boiler inactivity With this setting on mini...

Page 31: ... 1 Turn off the boiler by turning the Summer Winter selector on central 0 position 2 Turn the screw on the By pass see picture until it s in the position shown in B To turn the By pass back in the original automatic working mode turn the screw until it s in the position shown in A PUMP S SPEED The pump has a selector which allows to reduce the speed so as to reduce the noise produced by the too ra...

Page 32: ...nstructions described in the previous paragraph Changing Gas type SW3 2 Heating FlowTemperature Range OFF normal 30 C 80 C ON reduced 25 C 45 C The reduced arrangement is thought for low temperature systems but the best results with this type of system are gained with the normal arrangement using the suitable optional Low Temperature Kit SW3 3 It determines the delay of 3 Minutes before the new ig...

Page 33: ...r 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 and or devices Check every 6 months and when necessary the substitution of the magnesium anode In case of works ...

Page 34: ...ter 10 DHW Safety valve 8 bar 11 System filling tap 12 Pump 13 Heating circuit drain tap 14 Gas valve 15 Motorized 3 way valve 16 Loss of water pressure switch 17 Safety thermostat 18 Flue thermostat 19 Automatic air outlet valve DHW tank 20 Heating circuit expansion vessel 21 Flue hood 23 Automatic air outlet valve heating circuit 24 Primary exchanger 25 Burner 26 Heating system flow temperature ...

Page 35: ...l mixing valve 7 Water heater tank outlet tap 8 Litercounter 9 DHW filter 10 DHW Safety valve 8 bar 11 System filling tap 12 Pump 13 Heating circuit drain tap 14 Gas valve 15 Motorized 3 way valve 16 Loss of water pressure switch 17 Safety thermostat 18 Sealed chamber 19 Automatic air outlet valve DHW tank 20 Heating circuit expansion vessel 21 Fan 22 Flue pressure switch 23 Automatic air outlet v...

Page 36: ...e free Contact for Room Thermostat or Cronothermostat for trade safety extra low voltage SELV TF Flue thermostat TS Safety thermostat VD Motorized deviating valve SE Arrangement for external sensor optional Electric diagram for SUPERMASTER 23 E 28 E EVZ1 2 3 Electrovalve zone 1 2 3 AUX1 2 3 Auxiliary contact for EVZ1 2 3 TAZ1 2 3 Room thermostat for zone 1 2 3 Colours abbreviations BK Black BN Bro...

Page 37: ...sed in pressure SR Heating NTC sensor SS DHW storage NTC sensor TA Voltage free Contact for Room Thermostat or Cronothermostat for trade safety extra low voltage SELV TS Safety thermostat VD Motorized deviating valve SE Arrangement for external sensor optional EVZ1 2 3 Electrovalve zone 1 2 3 AUX1 2 3 Auxiliary contact for EVZ1 2 3 TAZ1 2 3 Room thermostat for zone 1 2 3 Colours abbreviations BK B...

Page 38: ...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 39: ...ponsible 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 combustion checkings must be carried out by a qu...

Page 40: ...n lamp 1 will turn constantly on to show that the boiler is on If the water contained by the boiler is cold or however inferior to the set up temperature there will be the ignition of the flame till the heating of the flame 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 mista...

Page 41: ... days the boiler automatically provides for the heating of the water in the boiler to more than 60 C so as to avoid eventual bacters which form in quiet water WINTER FUNCTIONING Turn the selector 2 bringing it in the WINTER Position Regulate the Boiler Thermostat 3 at the desired temperature If a Room thermostat or a Cronothermostat is installed the regulation of this last keeps the room temperatu...

Page 42: ...i Blocking functions can t be activated useful during long period of inactivity The external general switch could be off FLASHING slowly the boiler is electrically supplied but the SUMMER WINTER Selector is in central position 0 The boiler will not turn on following the needs of heating and water in the boiler won t be maintained hot but the Anti Freezing and Anti Blocking Functions are on this la...

Page 43: ...e in normal conditions should not decrease If this hap pens there is probably a loss in the heating system Sometimes the loss is so small that it doesn t leave evident signs but with the progress of the time it can cause the decreasing of the pressure Also the opening of the Manual Radiator Outlet taps intentional or unintentional makes the pressure decrease Check that this doesn t happen the boil...

Page 44: ...echnician when it is necessary If in the room where the boiler is installed there are mantelpieces stoves coal stoves or similar fans for the Air Outlet such as wall fans aspiring cowls for cooking boards with outlet pipe let the technician check that the inlet is correctly OVERSIZED or that there are the ADDITIONAL Inlets as prescribed by the laws in force because other wise these devices interfe...

Page 45: ...water and scale This happens also if the boiler goes in Lock Out state red lamp on or flashing ROOM ANTIFREEZING FUNCTION If the flat where the boiler is installed remains unused for a period with cold temperature you can consider the possibility to extend the antifreezing capability of the boiler to all the heating system and to the flat rooms Also in this case are needed the presence of all supp...

Page 46: ...ess the prescriptions connected to the laws and the national and local rules must be respected together with the rules contained in the paragraph Chimney connections SHORTAGE OF DOMESTIC HOT WATER PRODUCTION make sure that D H W thermostat is not set on a too low position call a qualified technician to check gas valve regulation let a technician check the storage temperature regulation in the case...

Page 47: ... water or other liquids sprinklings Do not put any 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 SUPERMASTER E models natural draught the ins...

Page 48: ...i responsabilità per eventuali errori di stampa e o di trascrizione con tenuti nel presente libretto Nell intento di migliorare costantemente i propri prodotti la Hermann s r l si riserva il diritto di varia re le caratteristiche ed i dati indicati nel presente libretto in qualunque momento e senza preavviso il presente pertanto non può essere considerato come un contratto nei confronti di terzi ...

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