Bosch AQUA STAR 250SX LP Скачать руководство пользователя страница 33

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6 720 607 057

Special adjustment for measuring and adjusting CO2 levels

Fig. 43 Adjusting

Leave “Program” mode

Turn ON/OFF switch in position OFF and then ON
again.

NOTE:

turning

screw

clockwise

decreases

level,

turning

counterclockwise increases it.

Caution:

Faulty ignition or noisy

operation may occur if CO

levels are

adjusted outside the indicated range.

Содержание AQUA STAR 250SX LP

Страница 1: ...njury or property damage Refer to this manual For assistance or additional information consult a qualified installer service agency or the gas supplier In the Commonwealth of Massachusetts this product must be installed by a licensed plumber or gas fitter Upon completion of the installation these instructions should be handed to the user of the appliance for future reference What to do if you smel...

Страница 2: ...onment 34 11 Twelve Year Limited Warranty 35 1 Warning Featuring Electronic Ignition and Power Venting For your safety Do not store or use gasoline or other flammable combustible or corrosive vapors and liquids in the vicinity of this or any other appliance Warning If the information in this manual is not followed exactly A fire or explosion may result causing property damage personal injury or de...

Страница 3: ...ause undesired operation Fig 1 Fig 2 Warning Field wiring connections and electrical grounding must comply with local codes or in the absence of local codes with the latest edition of the National Electric Code ANSI NFPA 70 or in Canada all electrical wiring must comply with the local codes and the Canadian Electrical Code CSA C22 1 Part 1 Warning Shock hazard line voltage is present Before servic...

Страница 4: ...ty Maximum flow rate 6 35 GPM 24 l min at a 45 F 25 C rise Maximum output 142 968 Btu h 41 8 kW Maximum input 175 000 Btu h 51 2 kW Efficiency in Recovery efficiency 86 5 Min Output 31 131 Btu h 9 1 kW Temperature Control Selection range 100 F 38 C 140 F 60 C Default temperature 122 F 50 C Stability 2 F 1 C Gas Requirement Gas connection inches Inlet gas pressure under operation with a high hot wa...

Страница 5: ...curely The box includes Pressure relief valve Bracket for wall hanging the heater Exhaust vent adaptor with 4 screws and gasket provided Combustion air inlet adaptor with 3 screws and gas ket provided Plastic decal shields for covering front cover screws and control panel installer should affix these decals to the front of the unit after installation is complete See Fig 4 Installation manual Produ...

Страница 6: ...m installation clearances Fig 5 Dimensions 1 Cover 2 On Off switch 3 Reset button 4 LCD display 5 Program button 6 Temperature buttons Fig 6 Minimum clearances Model 250 SX TOP A 12 FRONT B 4 BACK 0 SIDES 4 FLOOR C 12 VENT DIAMETER 3 Table 1 Minimum clearances ...

Страница 7: ...hut off valve on the gas line Note manual gas shutoff valve is not supplied with the heater B 9 Do not use this appliance if any part has been underwater Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been underwater 2 5 Proper location for installing your heater Carefully select the location of t...

Страница 8: ...r your type of Gas Propane or Natural Gas Identification labels are found on the shipping box and on the rating plate which is located on the right side panel of the cover Fig 7 Mounting the heater 2 8 Combustion air requirements The 250 SX is a sealed water heater and it is recommended that outdoor combustion air be piped to the unit When combustion air is piped to the unit TWIN PIPE SYSTEM the c...

Страница 9: ...ffective free area is not known increase the sizes of your openings by 75 if your louvers are wood and by 30 if your louvers are metal Refer to the National Fuel Gas Code for complete information In buildings of tight construction all air should be taken from outside 2 9 Venting NOTE This appliance s exhaust must be vented to the outside with a sealed 3 stainless steel vent pipe AL29 4C The applia...

Страница 10: ...cturer s specifications Open combustion single pipe 3 inch stainless steel AL29 4C sealed vent pipe 26 feet 8 m with one elbow Less 2 feet for each additional 90 elbow 3 feet See chapter 2 8 See chapter 2 8 See vent manufacturer s specifications See vent manufacturer s specifications Exhaust vent is always fan assisted Installation of exhaust vent and combustion air piping may be run vertically or...

Страница 11: ...em The 250 SX will shut down if inadequate exhaust venting is detected or a lack of combustion air is provided to the unit see troubleshooting section on page 24 See error code to confirm error correct the problem and then reset the heater before operating Attaching the exhaust and air inlet connection adaptors to the top of the heater Fig 10 Fig 11 B Attach the flue gas exhaust accessory 8 705 50...

Страница 12: ...n or equal to 5 feet 1 5m a condensate drain tube must be attached to the exhaust collar See page 14 Fig 15 Exhaust vent pipe A B C 23 ft 7 2 m A condensate drain tube must be attached to the exhaust collar of the heater for any vertically exhausted vents see page 14 The exhaust vent system must vent directly to the outside of the building and an adequate amount of indoor combustion air must be pr...

Страница 13: ...ft E From an opposing wall or structure facing the termination 24 in From any other building opening gas utility meter service regulator or the like 36 in F From a terminator facing a terminator 48 in G Vertically between two exhaust vent terminators on the same wall 60 in H Horizontally between two exhaust vent terminators on the same wall 12 in I Horizontally from combustion air inlet of 250 SX ...

Страница 14: ...3 8 ID high temperature silicone for at least the first 6 inches 152 mm and attached with a gear clamp or hose clamp The condensate must be disposed of according to local regulations Fig 17 Horizontal side wall venting installation combustion air piping not being shown If the total horizontal exhaust vent length in a side wall installation is greater than or equal to 5 feet 1 5m a condensate drain...

Страница 15: ...rmine the effective length of the gas supply line by measuring the actual length of piping and then adding 5 ft 1 52m for every elbow or T to the actual length Use the charts in Fig 22 to determine the pipe diameter necessary to accommodate the BTU Wh demand of the unit If there are more gas drawing appliances on the line size according to the maximum amount of BTU Wh demand Note It is important t...

Страница 16: ... 79 72 67 62 59 55 3 4 329 216 181 145 131 121 112 104 95 90 7 8 501 346 277 233 198 187 164 155 146 138 Nominal Iron Pipe Black Iron Pipe Size Length of Pipe Feet Inches 10 20 30 40 50 60 70 80 90 100 125 150 1 2 275 189 152 129 114 103 96 89 83 78 69 63 3 4 567 693 315 267 237 217 196 185 173 162 146 132 1 107 732 590 504 448 409 378 346 322 307 275 252 1 1 4 220 149 121 103 913 834 771 724 677 ...

Страница 17: ...must be checked for safe operation When connections are made check for gas leaks at all joints Apply some soapy water to all gas fittings Soap bubbles are a sign of a leak 2 12 Measuring gas pressure To measure and verify if adequate gas pressure is being delivered to the water heater first run a high hot water flow rate and operate other gas equipment on the same load Using a manometer then measu...

Страница 18: ... If the cold and hot connections to the heater are reversed the heater will not function Be certain there are no loose particles or dirt in the piping Blow out or flush the lines before connecting to the water heater Full port valves should be installed on both the cold water supply and hot water outlet lines to facilitate servicing the heater see Fig 25 For installation on a private well system w...

Страница 19: ...f control switch is jammed close the gas supply and call a qualified service technician Attempted forceful repair may result in a fire or explosion D Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water 2 17 Lighting and operati...

Страница 20: ... heater and set the ON OFF switch to the OFF 0 position Note a manual gas shut off valve is not supplied with the heater i NOTE on a first time initial instal lation or after gas line work has been done existence of air in the gas line will cause ignition delay when the hot water is turned on This will result in an error EA on the units display screen This is normal When this occurs leave the hot ...

Страница 21: ...temperature outlet B Press buttons and in order to reach requested temperature Fig 28 If the outlet water temperature is set too high the heater can produce temperatures that are too hot A temperature balance shower valve can automatically mix in cold water to reduce such hot water temperature In the event of any temperature instability with the use of a temperature balance shower valve refer to s...

Страница 22: ...ming and outgoing water temperatures Fig 29 Flow temperature charts Hot Water Flow and Temperature with Various Inlet Temperature lpm Celsius 0 00 4 00 8 00 12 00 16 00 20 00 24 00 35 40 45 50 55 60 65 Hot water temperature ºC Hot Water Flow l min Inlet ºC 4 Inlet ºC 10 Inlet ºC 16 Inlet ºC 21 Hot Water Flow and Temperature with Various Inlet Temperature gpm Fahrenheit 0 00 1 00 2 00 3 00 4 00 5 0...

Страница 23: ...ists contact your installer 3 6 Program button Program button can be used programmed in the appliance and in the remote control Programming Program function Programming actions are similar for both controls appliance control pad and wireless remote control Fig 34 Program key B Press buttons and to select temperature to be memorized B Hold Program button for 3 seconds to save temperature When LCD s...

Страница 24: ...nection made to wrong side of heater Make sure cold water inlet connection is plumbed to the right side of heater when facing unit Water flow rate at hot water tap is too low A minimum of 0 8 gallon minute 3 l m is required to activate the heater Cold water inlet filter screen is dirty Remove water inlet filter screen and clean The screen is located at the inlet connection to the water heater disc...

Страница 25: ...stem can result in uneven pressures between the cold and the hot In such cases when mixing cold water at the tap manually or automatically through a mix type shower valve the lower hot water pressure may be overpowered by the higher cold water pressure in the building and cause the hot water flow rate to fall below the minimum rate required A pressure balance valve will help to resolve this sympto...

Страница 26: ...ed from control unit Check that the water temperature sensor receiver is properly assembled in the water pipe Check if vent terminal is blocked or if vent terminal is according with chapter 2 9 In case of high altitude installation confirm that necessary adjustment steps have been taken C1 FAN rotation too low at start up from control unit Check supply voltage Check fan and connections Check contr...

Страница 27: ...temperature sensor 2 Ionization sensor 3 Water flow sensor 4 Over heat protection 5 Temperature limiter 6 Gas valve 7 Fan 8 Water valve 9 AC Plug 10 Ignition electrode 11 Display PCB 12 ON OFF switch 13 Fuse T 2 5A 14 Fuse T 3 15A 15 Terminal block 16 Ground post 17 Outlet water temperature sensor ...

Страница 28: ...6 720 607 057 28 250 SX Functional scheme 7 250 SX Functional scheme Fig 37 Functional scheme ...

Страница 29: ... 8 1 Interior components Fig 38 Components 1 Cover 2 On Off switch 3 Reset button 4 LCD display 5 Program button 6 Temperature switches 7 Flue gas collector 8 Mixer 9 Heat exchanger 10 Observation window 11 Inlet air duct 12 Control unit 13 Exhaust fan 14 Water valve 15 Gas valve Fig 39 Appliance overview ...

Страница 30: ...6 720 607 057 30 Interior components diagram and parts list 8 2 Components diagram Fig 40 Components Diagram ...

Страница 31: ...01 050 17 Set of electrodes 8 708 107 020 18 Exhaust Fan 8 707 204 039 19 Gas Air Mixer 8 705 700 115 20 Mixer Fan gasket 8 704 701 059 21 Gas valve washer 8 704 701 062 22 Gas valve 8 707 021 019 23 Gas valve washer 8 700 103 014 24 Remote control 8 707 207 153 25 Control unit 8 707 207 133 26 Ignition cable 8 704 401 220 27 Cables 24V 8 704 401 214 28 Cables 8 704 401 239 29 Power supply cord 8 ...

Страница 32: ... water flow B Turn the screw in order to regulate the air gas mixture inside the ventilator until the CO2 level required is reached Fig 43 pos 3 CO2 adjustment at maximum gas flow P1 See table 7 B Press until P1 appears B Open hot water tap The appliance will run constantly at maximum power output and maximum water flow This program step can also be used to measure maximum output and maximum water...

Страница 33: ...3 Adjusting Leave Program mode B Turn ON OFF switch in position OFF and then ON again i NOTE turning screw clockwise decreases CO2 level turning counterclockwise increases it Caution Faulty ignition or noisy operation may occur if CO2 levels are adjusted outside the indicated range ...

Страница 34: ...w limiters They will give you the same comfort level while saving water B Define the temperature you want in the appliance or with the remote control This way you have the precise water flow needed mixing cold water to regulate temperature will increase the water flow with consequent waste of water For increased safety shut off the appliance from the main water supply if your are staying away from...

Страница 35: ...n to supplying the replacement part s CEC will provide ground service delivery for these parts Expedited or upgraded shipping will be charged to the customer Service Labor Costs This warranty does not cover any labor costs associated with service removal or re installation of part s All such costs must be borne by the Purchaser Additionally this warranty does not cover any labor costs associated w...

Страница 36: ...d River Park Waitsfield Vermont 05673 Phone 800 642 3111 Fax 802 496 6924 www controlledenergy com tech techsupport controlledenergy com VULCANO Termodomésticos S A Estrada de Cacia 3801 856 Aveiro PORTUGAL Recycled paper 2004 Controlled Energy Corporation Waitsfield VT all rights reserved ...

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