Hoval 51-UltraGas 2 1000 Installation Instructions Manual Download Page 60

Page: 60 / 66

4 220 456 / 02

MAINTENANCE

- Separate the condensate drain with siphon from the

condensate drain socket and ensure that the cleaning

water is directed into a collection tank or, if local regula-

tions permit, into the sewer system.

Thoroughly flush the heating surfaces (combustion

chamber and TurboFer

stainless steel composite

pipes (aluminium and stainless steel)) with a concen-

trated jet of water (e.g. using a spray gun attached to a

water hose).

If a higher cleaning effect is required:

Wet the heating surfaces with solvent-free cleans-

ing agent (e.g. soapy water), allow to act for a few

minutes and rinse with water.

- If deposits on the heating surfaces occur despite of an-

nual cleaning according to the steps above:

- Spray the heating surfaces with chloride-free, phos-

phoric cleansing agent (e.g. Desoxin) (Fig. 53), al-

low to act and flush with a jet of water of a high-pres

sure cleaner.

Spray bottle

Fig. 53

- The process can be repeated.

NOTICE

Cleansing agents in the condensate drain

and/or sewage system.

• Also rinse the condensate drain (tray and

siphon) after the cleaning procedure.

• Always observe the disposal instructions

of the cleansing agents (do not discharge

them into the sewage system).

13. Remove the cover from the cleaning opening.

Cleaning opening cover

Cleaning opening seal

Fig. 54

14. Clean condensate drip tray.

NOTICE
Flue gas accumulation in the heat generator

If the condensate cannot drain off, it will ac

cumulate in the boiler / flue gas collector. The

flue gas can no longer be transported away

without any obstruction.

• Always route the condensate drain with a

downwards slope in such a way that the

condensate is always guaranteed to flow

out without any obstruction.

• Check and clean the siphon, neutralisation

unit (if present) and condensate drain at

least 1x a year.

WARNING
Flue gas outlet

If there is no water in the siphon, or too little

water, then flue gas can escape through the

condensate drain. The concentration of flue

gas in the air can represent a fatal hazard.

•

Before recommissioning, fill the siphon

and, if present, the neutralisation unit with

water.

The water can be filled into the neutralisa

tion unit and the siphon via the cleaning

opening (Fig. 54).

Summary of Contents for 51-UltraGas 2 1000

Page 1: ... continuously con trolled reduced operation in heating systems 1 See technical data UltraGas 2 125 1550 Gas condensing boilers for natural gas in modulating operation These instructions are applicable to the fol lowing types Nominal output ranges at 50 30 C and natural gas 51 UltraGas 2 125 25 126 kW 51 UltraGas 2 150 35 151 kW 51 UltraGas 2 190 38 191 kW 51 UltraGas 2 230 51 233 kW 51 UltraGas 2 ...

Page 2: ...unctions of the automatic function device BIC 970 30 4 Installation 4 1 Safety instructions 31 4 2 Requirements on the boiler room 31 4 2 1 Room air dependent installation 31 4 2 2 Room air independent installation 31 4 3 Flue gas connection flue gas line 32 4 3 1 Standard values for flue gas line dimensions 33 4 3 2 Air flue gas routing 34 4 4 Condensate drain 35 4 4 1 Condensate drain engineerin...

Page 3: ...ontent in the flue gas 50 5 9 1 Flue gas measurement UltraGas 2 125 700 50 5 9 2 Flue gas measurement UltraGas 2 800 1550 51 5 10 Handover to the owner user 52 5 11 Activation of screed function 53 6 Maintenance 6 1 Safety instructions 55 6 2 Deaeration 55 6 3 Top up with water 55 6 4 Renewing fuse 55 6 5 Information for fire inspector chimney sweep regarding emission and manual operation settings...

Page 4: ...ING Risk of poisoning and explosion if gases leak out Immediately disconnect the gas supply open windows and doors and leave the room WARNING The boiler must only be suspended using the four points marked as the crane suspension option in Fig 02 The hooks on the rear of the boiler must not be used to suspend it 1 2 Explanation of the symbols 1 2 1 Warnings DANGER indicates a situation of immediate...

Page 5: ...uarantee The guarantee does not cover defects attributable to Failure to comply with these instructions Failure to comply with the operating instructions Incorrect installation Impermissible modifications Incorrect handling Contaminated operating materials gas water com bustion air Unsuitable chemical additives to the heating water Damage caused by the application of force Corrosion by halogen com...

Page 6: ...chnical specifications of the gas supply companies Worksheet DWA A 251 Condensate from condensing boilers The regulations of the local water authorities could deviate from the rules in this worksheet Accident prevention regulations DGUV Regulation 1 Accident prevention regulations Guidelines for prevention DGUV Regulation 4 Accident prevention regulations Electrical installations and equipment Aus...

Page 7: ...28 2108 141 UltraGas 2 530 700 121 121 1110 1600 2364 2244 155 UltraGas 2 800 1100 280 195 1290 1786 2385 2265 119 UltraGas 2 1300 1550 291 154 1560 2104 2525 2405 163 1 If the room height is too low the dimension A can be reduced 2 Caution At A minimum the burner can no longer be swivelled out completely Cleaning is made difficult 3 Height value assumes adjustable feet are set to 30 mm 4 The feet...

Page 8: ... 2 Caution The installer will have to fit a siphon with min 70 mm barrier height UltraGas 2 Type H 1 125 150 1933 190 230 1978 300 350 2038 400 450 2108 530 700 2244 800 1100 2265 1300 1550 2405 UltraGas 2 Type H 1 125 150 1934 190 230 1979 300 350 2042 400 450 2112 530 700 2255 800 1100 2276 1300 1550 2416 UltraGas 2 Type H 125 150 1934 190 230 1979 300 350 2042 400 450 2112 530 700 2255 800 1100...

Page 9: ...9 4 220 456 02 Important notices 2 1 2 Suspension option Notice The chains must be at least 1 5 m long Crane suspension option Notice Do not suspend the crane here Fig 02 ...

Page 10: ... the pallet 2 through 45 3 Push the boiler so that 3 boiler feet 3 can be mount ed 2 feet on the front and 1 foot on the rear 3 3 3 Fig 04 4 Raise the boiler with the pallet e g using a lift truck 5 Pre assemble 3 boiler feet 3 tighten screws by hand 6 Carefully lower the boiler again danger of tipping over The boiler remains on 3 feet 7 Remove the pallet from under the boiler 8 Mount the 4th boil...

Page 11: ... of the boiler 4 Remove both side beams 5 to the front and side see Fig 07 5 Pre assemble front feet 6 tighten screws by hand 6 Using a winch raise the rear of the boiler 7 Remove both side beams 5 8 Pre assemble rear feet and if provided middle 7 feet tighten screws by hand 9 Using a winch place the boiler on the floor 10 Tighten the screws of all feet WARNING Tip hazard Unscrew the feet max 80 m...

Page 12: ... 1 around the UltraGas 2 boiler Start at the front of the boiler Make sure that the recesses are seated correctly 2 Fit tension springs 2 to hold the ends of the insulation mat 1 together 3 Fasten plastic straps 3 and strap fasteners 4 Do not overtighten the straps reduced insulating value 2 1 3 4 Fig 08 ...

Page 13: ...9 10 Cover plate 11 Front top 12 Siphon and condensate drain see chapter 4 4 2 13 Base strip on the side 14 Base strip on the front 15 Front cover Cabling a Flue gas sensor on the back of the boiler directly under the return connection b Neutralisation unit if fitted c Water pressure sensor d Mains cable e Pressure switch B18 f Flame monitoring ionisation g Boiler temperature sensor h Burner wirin...

Page 14: ...ver plate 11 Front top 12 Siphon and condensate drain see chapter 4 4 2 13 Base strip on the side 14 Base strip on the front 15 Front cover Cabling a Flue gas sensor on the back of the boiler directly under the return connection b Neutralisation unit if fitted c Water pressure sensor d Mains cable e Pressure switch B18 f Flame monitoring ionisation g Boiler temperature sensor h Burner wiring 2 plu...

Page 15: ...1550 Install side wall section 2 2 detail C Position the slots in the side wall section 2 2 on the corresponding screw heads of the side wall section 2 1 and then fix the two sections together by pulling down the side wall section 2 2 The recesses at the top and bottom of the side wall section 2 2 must be positioned over the screws Loosely fasten the lower side wall 2 or 2 1 2 2 at the fastening p...

Page 16: ... of the electrical box must point towards the lower two studs 4b on the side of the terminal plate 3 4 4b 4b 4a 3c 3c Fig 13 Move the electrical box 4 forwards so that the heads of the two lower studs 4b end up in the two recesses 4a Then pull the electrical box 4 downwards so that the studs 4b hook into the recesses 4a Attach one safety cord 4c each on the inside left and inside right of the elec...

Page 17: ...0 9 Installing rear wall continued Installing the 3 section upper rear wall 8 1 8 2 8 3 8 1 8 2 8 3 8c 8c 8a 8b 8b 8a Fig 17 Installing the rear wall section 8 1 Position the slots in the rear wall section 8 1 on the corresponding screw heads of the upper side walls 7 and then fix with the side walls by pulling down 8a Installing the rear wall section 8 2 Position the slots in the rear wall sectio...

Page 18: ...Installation of the siphon and conden sate drain page 36 WARNING The supplied siphon must be installed ver tically 14 Hang the climbing aid on the previously installed wall bracket see Fig 09 and Fig 10 15 Installing the base cladding 14 13 13 Fig 21 Installing both base strips 13 on the sides Screw the side base strip 13 onto the boiler feet Installing the front base strip 14 Place the slots of t...

Page 19: ... cover away at the top 1a Unhook front cover at the bottom 1b 2 Set up climbing aid 2 3 4 2 4 1 7 2 11 1 11 2 Fig 24 3 Removing the upper front 3 Remove securing screw 3a Fig 23 Lift the upper front slightly and pull it forwards 4 Remove the cover plates 4 or 4 1 4 2 UltraGas 2 125 1100 4 Fig 25 UltraGas 2 1300 1550 5 4 2 4 1 Fig 26 5 Remove side wall spacers 5 if fitted ...

Page 20: ...6 3 remain screwed together the upper rear wall can also be dis mantled as a 1 piece with due care However we recommend this procedure only if there is plenty of space available 6 3 6 2 6 1 6a 6a Fig 27 7 Removing the upper side walls 7 Remove the self tapping screws 7a Pull the upper side wall 7 forwards slightly and lift it away upwards 7 7a 7a Detail Fig 28 8 Opening the electrical box 8 Remove...

Page 21: ...r side stain less steel aluminium on the flue gas side The secondary heating surface is designed so that part of the water vapour contained in the flue gas condens es and the heat of evaporation is utilised for the heating circuit The gas burner is configured as a vertical burn er that can be swivelled up easily for maintenance work The UltraGas 2 is provided for operation with natural gas and liq...

Page 22: ... RO SE II2H3P II2H3P PT SI SK TR 20 37 20 25 37 CH CZ FI GR 20 37 0 0 0 FR II2Er3P II2Esi3P II2H3P II2H3P AT HR 20 50 20 50 DE NL LU II2E3P II2EK3P 20 25 50 50 II2H3P 0 0 20 28 30 37 B23P C53 C63 Erdgas H 18 mbar BE 20 25 37 20 20 37 PL II2ELw3P ES GB IT II2H3 134 668 kW Tmax 95 C 149 741 kW TS 110 C 132 653 kW PMS 6 bar 146 703 kW PT 9 bar Hoval Aktiengesellschaft FL 9490 Vaduz UltraGas 2 700 10 ...

Page 23: ... 3 2 14 2 3 5 18 0 4 7 22 4 Natural gas LL Wo 12 4 kWh m3 NCV 8 57 kWh m3 m3 h 2 7 13 5 3 7 16 6 4 1 20 9 5 5 26 0 Propane NCV 25 9 kWh m3 m3 h Operating voltage V Hz 1x230 50 1x230 50 1x230 50 1x230 50 Electrical power consumption min max Watts 41 140 43 225 38 151 49 228 Standby Watts 7 8 8 8 Type of protection IP 20 20 20 20 Permitted ambient temperature during operation C 5 40 5 40 5 40 5 40 S...

Page 24: ...8 6 8 9 43 8 Natural gas LL Wo 12 4 kWh m3 NCV 8 57 kWh m3 m3 h 7 2 34 0 8 2 39 4 9 1 44 9 10 4 51 0 Propane NCV 25 9 kWh m3 m3 h Operating voltage V Hz 1x230 50 1x230 50 1x230 50 1x230 50 Electrical power consumption min max Watts 42 260 44 292 53 560 63 580 Standby Watts 5 8 5 8 Type of protection IP 20 20 20 20 Permitted ambient temperature during operation C 5 40 5 40 5 40 5 40 Sound power lev...

Page 25: ...6 1 Natural gas LL Wo 12 4 kWh m3 NCV 8 57 kWh m3 m3 h 11 8 59 0 14 5 69 0 15 6 77 9 17 6 88 6 Propane NCV 25 9 kWh m3 m3 h Operating voltage V Hz 1x230 50 1x230 50 1x230 50 1x230 50 Electrical power consumption min max Watts 67 805 63 831 67 1060 94 1012 Standby Watts 5 5 5 7 Type of protection IP 20 20 20 20 Permitted ambient temperature during operation C 5 40 5 40 5 40 5 40 Sound power level H...

Page 26: ...L Wo 12 4 kWh m3 NCV 8 57 kWh m3 m3 h 21 8 110 0 24 0 123 3 28 8 146 0 34 7 171 4 Propane NCV 25 9 kWh m3 m3 h Operating voltage V Hz 1x230 50 3x400 50 1x230 50 3x400 50 1x230 50 3x400 50 1x230 50 3x400 50 Electrical power consumption min max Watts 203 1873 203 1933 271 4111 301 4141 Standby Watts 7 7 5 7 Type of protection IP 20 20 20 20 Permitted ambient temperature during operation C 5 40 5 40 ...

Page 27: ...242 743 1788 1652 845 169 465 231 285 285 189 58 1939 400 450 2198 930 1604 1165 1204 242 743 1858 1652 845 169 465 231 285 285 189 24 2015 530 700 2334 1110 1695 1184 1294 242 923 1982 1664 857 203 477 228 286 286 225 2 2066 800 1100 2355 1290 1857 1364 1480 242 1103 1987 1673 888 215 508 228 378 378 225 58 2059 1300 1550 2495 1560 2175 1640 1790 250 895 1363 2103 1700 922 238 542 238 420 420 218...

Page 28: ...80 980 1583 1678 1484 1037 140 680 236 300 350 1882 790 1330 1649 1742 1556 1391 140 950 316 400 450 1956 790 1330 1649 1816 1556 1391 140 950 316 530 700 2099 970 1420 1708 1940 1605 1423 159 970 316 800 1100 2120 1150 1606 1729 1945 1625 1722 175 1150 408 1300 1550 2255 1410 1916 1779 2056 1671 2042 199 1410 458 Required minimum width of door and corridor for boiler installation The following va...

Page 29: ...40 50 Durchflusswiderstand mbar Volumenstrom m3 h UltraGas 2 300 350 400 450 Flow rate m3 h Pressure drop mbar UltraGas 2 530 700 0 5 10 15 20 25 30 35 40 45 50 0 10 20 30 40 50 60 Durchflusswiderstand mbar Volumenstrom m3 h UltraGas 2 530 620 700 Flow rate m3 h Pressure drop mbar UltraGas 2 800 1100 0 5 10 15 20 25 30 35 40 45 0 10 20 30 40 50 60 70 80 90 Durchflusswiderstand mbar Volumenstrom m3...

Page 30: ...ter pressure sensor Safety limit value thermostat possibly external flue gas temperature monitor Air pressure switch Optional air pressure sensor can be connected for monitoring Gas pressure switch Fault and Flame message status outputs RS 485 connection to TopTronic E UltraGas 2 Number of start attempts maximum 4 Safety time 5 sec Pre ignition 5 sec Pre ventilation period 50 sec After run time fo...

Page 31: ...gen for the operating personnel to breathe An adequate supply of fresh air must be guaranteed ac cording to local regulations 4 2 1 Room air dependent installation Binding values for the size of supply air openings are not generally specified in the relevant regulations It is merely required that no negative pressure in excess of 3 N m2 occurs in the boiler room The locally applicable regula tions...

Page 32: ...ast 50 mm per me tre of their length installed in the direction of the boiler to allow free return of condensation water towards the boiler The whole flue gas system must be installed so that condensate can never collect at any point The cross sections and the maximum lengths are calculated with reference to dia grams or tables The tables are available from the flue gas line manufacturer The value...

Page 33: ...ve pressure in the chimney is to be expected in some operating conditions Therefore we recommend an individual design of the chimney system and checking the individual pressure conditions Standard values for the flue gas line dimensions can be found in the following table Table with bases for calculation Calculation based on max 1000 m above sea level Installation room with supply air opening room...

Page 34: ...om the surrounding environment End piece of the flue gas outlet above the roof C53 Air intake and flue gas outlet outside in areas with different pressure Vertical end piece of the flue gas outlet C63 For connection to any certified air flue gas systems 1 Source of illustrations DVGW worksheet G 600 Technical regulations for gas installations DVGW TRGI September 2018 pages 125 135f ...

Page 35: ...n Neutralisation Without neutralisation condensate discharge is only per mitted if the waste water pipes and the sewer system are made from plastic or ceramic material the local authority may approve a derogation If required by the local authority the condensate must be neutralised before being discharged into the sewer sys tem In this case a neutralisation unit must be installed in the condensate...

Page 36: ...zeuger Heat generator Condensate drain Sewer system Before commissioning the gas condensing boiler WARNING Flue gas outlet If there is no water in the siphon or too little water then flue gas can escape through the condensate drain The concentration of flue gas in the air can represent a fatal hazard Before commissioning fill the siphon and if present the neutralisation unit with water 4 4 2 Insta...

Page 37: ... connections for leaks Double nipple siphon Siphon neutralisation unit Neutralisation unit sewer system Check condensate outflow 4 4 2 2 Installation of the condensate drain siphon condensate pump sewer system at higher level When installing the siphon and condensate drain the project engineering guidelines for condensate drains must be complied with see chapter 4 4 1 1 Screw double nipple 1 and s...

Page 38: ...utralisation unit A hose is included with the condensate pump pur chased at Hoval for the hydraulic connection 4 Install the neutralisation unit and condensate pump in accordance with the corresponding installation and operating instructions 5 Fill the siphon 2 Fig 34 and the neutralisation unit with water After installation before commissioning of the boiler the following must be carried out Chec...

Page 39: ... and return lines to the heating circuit with flexible compensators If a common return is to be used use the low temperature return Low temperature return e g underfloor heating High temperature return e g fan group or calorifier Fig 35 4 6 1 To be observed on site A pressure expansion tank is to be installed appropriate for the heating system water volume and hydrostatic pressure 4 6 2 Hydraulic ...

Page 40: ...se Notice Nota Remarque Name 00 FEDI 17 08 2020 MK1 T T VF1 YK1 DKP T T SLP T T MK2 T T B1 2 VF2 YK2 AF RBM TTE GW TTE WEZ B1 1 HT NT P T P Pmax STB SF T TTE FE HK UltraGas 2 Fig 36 TTE WEZ TopTronic E basic module heat generator installed VF1 Flow sensor 1 B1 1 Flow temperature monitor if required MK1 Pump mixer circuit 1 YK1 Actuator mixer 1 AF Outdoor sensor SF Calorifier sensor DKP Pump for he...

Page 41: ...should be avoided at least 12 minute burner run time Please observe the notes in the engineering documents of the responsible Hoval sales company with respect to the appropriate hy draulic switching 4 7 Sound insulation The following measures are possible for sound insulation If living areas are above or below the boiler room make the boiler roomwalls ceilingandfloorassolidaspossible Connect pipes...

Page 42: ...th the applicable standards of nationally or internationally recognised pro fessional associations Procedure to remove the front cladding 1 Removing front cover 1 Pull front cover away at the top 1a Unhook front cover at the bottom 1b 2 Set up climbing aid 2 3 Removing the upper front 3 Remove securing screw 3a Lift the upper front slightly and pull it forwards 4 Opening the electrical box 4 Remov...

Page 43: ...st be taken in the building and on electri cal equipment to protect the units against overvoltage caused by lightning strikes The mains connection for the heating system must be designed as an independent electrical circuit Neither fluorescent lamps nor any other equipment which might cause interference may be connected nor may it be possible to connect such equipment Wärmeerzeuger Heizraumbeleuch...

Page 44: ... line in parallel in adjacent buildings overbuildings or through under ground car parks If this cannot be avoided one or more of the following options should be selected to im prove the decoupling Increase the spacing distance Route cables in a metal cable tray or metal cable duct that is enclosed on all sides and must be well earthed Use high quality twisted pair cables Potential differences betw...

Page 45: ...enerator 230 V UltraGas 2 125 1550 min 2 5 mm2 with 16 A fuse unlimited m 400 V UltraGas 2 1000 1550 min 2 5 mm2 with 16 A fuse unlimited m Cables carrying mains voltages from actuators min 1 0 mm2 unlimited m Cables carrying low voltage sensors min 0 5 mm2 max 50 m Data bus lines shielded 2 x 2 x 0 6 mm2 max 100 m The country specific regulations must be adhered to ...

Page 46: ... carefully and avoid contact with sharp edges Risk of injury for non expert personnel Initial commissioning maintenance and cleaning work are only allowed to be per formed by trained specialist personnel or by Hoval customer service NOTICE Damage to the system by filling unauthorised liquids The filling and replacement water must be of the required water quality see chapter 5 3 5 2 Filling the hea...

Page 47: ...1500 μS cm pH value of the heating water for systems without aluminium alloy as water side material 8 2 to 10 0 measurement 10 weeks after commissioning at the earliest The sum of the chloride nitrate and sulphate contents in the heating water must not exceed 50 mg l in total Additional notices Hoval boilers and calorifiers are suitable for heating systems without significant oxygen intake System ...

Page 48: ...e following systems must be equipped with separate circuits Systems with continual oxygen intake e g underfloor heating without diffusion proof plastic piping Systems with intermittent oxygen intake e g requir ing frequent topping up In the case of bivalent heating systems the values of the heat generator with the strictest requirement for wa ter quality must be complied with If only the boiler is...

Page 49: ...e WARNING Flue gas accumulation can result in injury to persons Ensure that flue gas is discharged In order to ensure safety the UltraGas 2 is equipped with a pressure monitoring device on the burner cylinder The pressure monitoring device records the pressure in the burner cylinder If the pressure exceeds the set tolerance range the UltraGas 2 will trigger a shut down This pre vents the boiler fr...

Page 50: ...pper value check lower value value is not correct set lower value check upper value 1 Start the Emission menu on the control module The control automatically switches to normal oper ation after expiration of the remaining run time or after pressing the Reset button 2 Position emission meter in the flue gas line 3 Set the boiler to maximum output 100 4 Set the O2 CO2 value by turning throttle screw...

Page 51: ... flue gas value must lie in the following range O2 5 5 5 9 CO2 8 8 8 5 by vol dry 5 Set the boiler to minimum output 1 6 Set O2 CO2 value by turning offset screw B The flue gas value must lie in the following range O2 5 5 5 9 CO2 8 8 8 5 by vol dry Factory setting throttle screw A after the closed condition UltraGas 2 Type Diameter X Bolt as aid Number of turns 800 1000 14 8 mm 17 5 turns 1100 19 ...

Page 52: ... The following points must be carried out on the handover to the owner instructions for operation maintenance and safety equipment of the plant have been received Handover of all instructions and documents Inform the owner that these instructions must always be kept with the plant Written confirmation of the instruction The handover report is on the last page of the document ...

Page 53: ... tion from SW 2 03 xxx onwards 04 069 10 K Kelvin FL act set Information Remaining run time screed function 02 019 days Forecast in days NOTICE The graphic table shows the factory settings The time profile and the maximum flow temperature must be discussed with the screed layer otherwise there could be damage to the screen and in particular cracks REACTION screed function Start stop Switch paramet...

Page 54: ... as well Prioritisation of the screed func tion means the settings are only ac tive at the end of the function 2 Information remaining run time Request of the active function phase the ACT temperature as well as the remaining run time Logging Please cut out the log and attach it to the controller during active screed function NOTICE The time profile and the maximum flow temperature must be discuss...

Page 55: ...set see operating instructions 6 2 Deaeration 1 Open all radiator valves 2 Heat up the plant for at least half a day with a high flow temperature 3 Switch boiler off and wait for 5 minutes 4 Thoroughly bleed the system 6 3 Top up with water ÖNORM H5195 European Standard EN 14868 and VDI Guideline 2035 must be complied with see chapter 5 3 If the water pressure drops below 1 bar a warn ing is outpu...

Page 56: ...d information see operating instructions Emission chapter Power limitation with 2 stage burner 0 to 50 1st stage 51 to 100 2nd stage REACTION to emission metering Go back after expiry of the time unit time specification of return to the main menu Setpoint temperature Maximum temperature limit Forced energy is used in an attempt to keep the corresponding heat generator temperature to 60 C Regulate ...

Page 57: ...he neutralisation unit A pH value 6 5 is OK Functional check of all electrically operated com ponents of the neutralisation unit condensate pump combination if present 2 Set the blocking switch to 0 and disconnect the heat generator from the mains e g main switch fuses 3 Close main gas valve 4 Set up the climbing aid and remove the upper section of the cladding see chapter 2 4 steps 1 to 7 5 Undo ...

Page 58: ...t the boiler cool down or wear protective clothing Wear safety gloves when removing the burner cylinder Burner cylinder Fig 48 Loosen the seals of the fan intermediate flange and burner cylinder and check for wear Cleaning the burner cylinder if required Clean the burner cylinder inside and out with compressed air or thoroughly flush with water Remove released dust and dirt particles with a vacuum...

Page 59: ...inless steel composite pipes of the UltraGas 2 must be cleaned once a year CAUTION Danger of chemical burns from cleansing agents Wear safety gloves and protective goggles when using cleansing agents Observe the manufacturer s instructions regarding the use of all cleansing agents NOTICE Damage to the plant by using incorrect cleansing agents Only use cleansing agents that are ap proved for gas bo...

Page 60: ...sewage system Also rinse the condensate drain tray and siphon after the cleaning procedure Always observe the disposal instructions of the cleansing agents do not discharge them into the sewage system 13 Remove the cover from the cleaning opening Cleaning opening cover Cleaning opening seal Fig 54 14 Clean condensate drip tray NOTICE Flue gas accumulation in the heat generator If the condensate ca...

Page 61: ... the cleaning opening 19 Check the seal of the cleaning opening Fig 54 for wear and replace if necessary WARNING If the cleaning opening has a leak flue gas can escape and there is a risk of poisoning Check the seal of the cleaning opening for wear and tightness at the cover Always close the cleaning opening 20 Install the cover of the cleaning opening Fig 54 and check it is gas tight 21 Closing t...

Page 62: ...form a functional check of pressure monitoring de vice See chapter 5 8 To check the function of the pressure switch B18 set it to the minimum value and restart the heat generator If a restart of the heat generator is not possible the pressure switch functions If the heat generator starts the pressure switch is defective Replace the pressure switch Set the outward pointing arrow on the pressure swi...

Page 63: ...0 5400 4500 4500 4800 4600 5700 5800 5000 5000 36898 Start speed Primary air fan rpm 1600 1900 1600 1600 1700 1700 1600 1600 1600 1600 1600 1600 1800 1800 1700 1700 36902 Speed post ventilation normal Primary air fan rpm 1100 1200 1000 1000 1000 1100 1000 1000 900 900 1000 900 1100 1100 1000 1000 36913 Run time post ventilation blocking Primary air fan s 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 36919 Run t...

Page 64: ...ar 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 38921 Switching diff max pressure blocking Water pressure sensor bar 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 38922 Max pressure locking Water pressure sensor bar 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 39946 Max setpoint BR Burner C 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 39947 Setpoint for bus interrupt Bur...

Page 65: ...65 4 220 456 02 ...

Page 66: ...Type Serial number Year of manufacture Place Date System installer System user Confirmation The user owner of the system herewith conﬁrms that he has received adequate instruction in the operating and maintenance of the installation received and taken note of the operating and maintenance instructions and where applicable other documents con cerning the heat generator and any further components an...

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Summary of Contents for 51-UltraGas 2 1000

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Hoval 51-UltraGas 2 1000, Installation Instructions Manual, Page: 60 / 66

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Summary of Contents for 51-UltraGas 2 1000

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