Bosch C 1050 Manual
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6 720 644 894 Installation instructions21 Natural GasLiquid propane Altitude (above sea level)Vent terminalTotal equivalent vent length1)Minimum power fan speed (P2)Maximum power fan speed (P1)Maximum power fan speed (P1) 0 - 2000 ft (0 - 610 m) Concentric 6 - 25 ft 13 No modification required No modification required For operation at eleva- tions above 2,000 ft (610 m) the equip- ment ratings shall be reduced at the rate of 4% for each 1,000 ft (305 m) above sea level 26 - 46 ft 13 Twin system 6 - 37 ft 13 38 - 62 ft 13 2000 - 4500 ft (610 - 1372 m) Concentric 6 - 25 ft 14* 52* 52* 26 - 46 ft 14* 53* 53* Twin system 6 - 37 ft 13* 52* 52* 38 - 62 ft 14* 53* 53* 4500 - 8000 ft (1372 - 2439 m) Concentric 6 - 25 ft 14* 53* 53* 26 - 46 ft 16* 53* 53* Twin system 6 - 37 ft 14* 53* 53* 38 - 62 ft 15* 53* 53* * Above 2000 ft, CO2 levels must be checked with a combustion gas analyzer, see section 6.5 for instructions. Table 18 Fan speed adjustment for 3 piping 1) Full equivalent length (inlet + outlet piping + fi ttings) Natural GasLiquid propane Altitude (above sea level)Vent terminalTotal equivalent vent length1)Minimum power fan speed (P2)Maximum power fan speed (P1)Maximum power fan speed (P1) 0 - 2000 ft (0 - 610 m) Concentric 3.5 - 39 ft 13 No modification required No modification required For operation at eleva-tions above 2,000 ft (610 m) the equip- ment ratings shall be reduced at the rate of 4% for each 1,000 ft (305 m) above sea level 40 - 86 ft 13 Twin system 3.5 - 59 ft 13 60 - 126 ft 13 2000 - 4500 ft (610 - 1372 m) Concentric 3.5 - 39 ft 14* 52* 52* 40 - 86 ft 14* 53* 53* Twin system 3.5 - 59 ft 13* 52* 52* 60 - 126 ft 14* 53* 53* 4500 - 8000 ft (1372 - 2439 m) Concentric 3.5 - 39 ft 14* 53* 53* 40 - 86 ft 16* 53* 53* Twin system 3.5 - 59 ft 14* 53* 53* 60 - 126 ft 15* 53* 53* * Above 2000 ft, CO2 levels must be checked with a combustion gas analyzer, see section 6.5 for instructions. Table 19 Fan speed adjustment for 4 piping 1) Full equivalent length (inlet + outlet piping + fi ttings)
6 720 644 89422 Installation instructions Adjusting minimum power fan speed (P2) To select fan speed: B Press ON/OFF button into OFF. B Press and hold Program button and press ON/OFF button to turn appliance ON. Fig. 24 B As soon as 188 is displayed, release Program button , and the display reads P2. B Press to enter P2 adjustment. The current set- ting will appear on the display (factory default: 12). B Press or to choose the fan speed suitable with your installation, see table 18 and table 19. B Press and hold ( ± 5 sec.) “Program” button until the display flashes, then the selected value is memorized. Adjusting maximum power fan speed (P1) To select fan speed: B Press ON/OFF button into OFF. B Press and hold Program button and press ON/OFF button to turn appliance ON. Fig. 25 B As soon as 188 is displayed, release Program bu t- ton , and the display reads P2. B Press the minus button to display P1. B Press “Program” button to enter P1 adjustment. The current setting will appear on the display. B Press or to choose the fan speed suitable with your installation, see table 18 and table 19. B Press and hold ( ± 5 sec.) “Program” button until the display flashes, then the selected value is mem o- rized. i Proceed directly to Section 6.5 to confirm CO 2 values are within range.i Proceed directly to Section 6.5 to confirm CO 2 values are within range.
6 720 644 894 Installation instructions23 Attention residents of the Commonwealth of Massachu setts: In the Commonwealth of Massachusetts the following regulation went into effect on 12/30/2005: (a)For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finis hed grade in the area of the venting, including but not limited to decks and porches, the following requirements sh all be satisfied: 1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall horizontal vented gas fueled equipment, the install ing plumber or gasfitter shall observe that a hard wire d carbon monoxide detector with an alarm and battery back-up is installed on the floor level where the g as equipment is to be installed. In addition, the inst alling plumber or gasfitter shall observe that a battery operated or hard wired carbon monoxide detector wit h an alarm is installed on each additional level of t he dwelling, building or structure served by the side wall horizontal vented gas fueled equipment. It shall be the responsibility of the property owner to secure the services of qualified licensed professionals for th e installation of hard wired carbon monoxide detector s. a.In the event that the side wall horizontally vent ed gas fueled equipment is installed in a crawl space or a n at tic, the hard wired carbon monoxide detector with a larm and battery back-up may be installed on the next adjacent floor level. b. In the event that the requirements of this subdi vision can not be met at the time of completion of install ation, the owner shall have a period of thirty (30) days t o comply with the above requirements; provided, however, that during said thirty (30) day period, a battery operated carbon monoxide detector with an alarm shall be installed. 2.APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance with the above provisions shall comply w ith NFPA 720 and be ANSI/UL 2034 listed and IAS certified. 3. SIGNAGE. A metal or plastic identification plate shall be permanently mounted to the exterior of the build ing at a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment. The sign shall read, in print size no le ss than one half (1/2) inch in size, GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS. 4. INSPECTION. The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless, upon inspectio n, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4. (b)EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4: 1. The equipment listed in Chapter 10 entitled Equipment Not Required To Be Vented in the most current edition of NFPA 54 as adopted by the Board; and 2. Product approved side wall horizontally vented g as fueled equipment installed in a room or structure separate from the dwelling, building or structure u sed in whole or in part for residential purposes. (c) MANUFACTURERS REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM REQUIRED. When the manufacturer of Product Approved side wall horizontally mounted gas equipment provides a venti ng system design or venting system components with the equipment, the instructions provided by the manufacturer for the installation of the equipment and the venting shall include: 1. Detailed instructions for the installation of th e venting system or the venting system components: and 2. A complete parts list for the venting system des ign or venting system. (d)MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED. When the manufacturer of a product approved side wa ll horizontally vented gas fueled equipment does not provide the parts for the venting of flue gases, bu t identifies special venting systems, the following requirements shall be satisfied by the manufacturer : 1. The referenced special venting system instruct ions shall be included with the appliance or equipment installation instructions; and 2. The special venting systems shall be product approved by the Board, and the instructions for tha t system shall include a parts list and detailed inst allation instructions. (e) A copy of all installation instructions for all products approved side wall horizontally vented gas fueled equipment, all venting instructions, all parts list s for venting instructions, and/or all venting design instructions shall remain with the appliance or equipment at the completion of the installation.
6 720 644 89424 Installation instructions 3.4 Combustion air requirements Twin pipe and Concentric pipe The water heater is designed as a sealed combustion appliance. It is recommended that the combustion ai r be provided by a dedicated 3” or 4” pipe from the outside (twin pipe) or by connecting to the Concent ric vent kit (see Fig. 8). The combustion air pipe may b e PVC or any other rigid sealed 3 or 4 pipe. The combustion air piping must pitch down 1/4 inch per foot towards termination to prevent rain water from entering the appliance. In twin pipe penetrations, the combustion air inlet, whether terminating verticall y or horizontally, must be located in such a manner as to provide a minimum 3 foot clearance from the exhaust vent terminator. See Fig. 9 and 10 Letter I, page 14. For the maximum length of the combustion air pipe, see Tables 5 & 6. Single pipe Note: This appliance requires 9950 cubic feet of available combustion air, or a minimum of 1243 square feet of space with an 8 foot ceiling to operate. If the large amount of air space, which equates to about half of most average sized homes, is not available, the appliance must pull air from the outside (see twin pipe above). Although it is permissible to draw combustion air f rom the inside, it is not the manufacturer’s recommende d installation method. Always install a 3 inch 90 ° el bow on the top of the combustion air inlet adaptor to prev ent foreign objects from falling into the unit. If a single pipe installation is utilized, follow g uidelinesbelow for providing adequate combustion air for the water heater as well as any other appliances that m ay consume air in the same space. Always follow local codes if they are more stringent and regulations. • Appliances located in unconfined spaces: – a) An unconfined space is one whose volume is greater than 50 cubic feet (1.42 cubic meter) per 1000 Btu per hour (292.81 Watts) of the combined rating of all appliances installed in the space. That would be 9950 cubic feet (281.8 cubic meters) for the water heater alone. – b) In unconfined spaces in buildings of conventional frame, masonry, or metal construction, infiltration air is normally adequate to provide air for combustion. • Appliances located in confined spaces: The confined space must be provided with two per- manent openings, one commencing within 12 inches (304.8mm) of the top and one commencing within 12 inches (304.8mm) of the bottom of the enclosure. Each opening must have a minimum free area of one square inch per: – 1000 Btu/hr (292.81 Watts) if all air is taken fro m inside the building – 2000 Btu/hr (585.62 Watts) if all air is taken fro m the outside by horizontal ducts – 4000 Btu/hr (1171.24 Watts)if all air is taken fro m the outside by direct openings or vertical ducts Or the confined space must be provided with one permanent opening or duct that is within 12 inches (304.8mm) of the ceiling of the enclosure. This ope ning must have a minimum free area of one square inch pe r: – 3000 Btu/hr (878.43 Watts) if all air is taken fr om the outside by a direct opening or vertical duct. Louvers, grills and screens have a blocking effect, when used, increase the sizes of your openings by 300% f or wood louvers (as wood type will reduce the free air by 75%) and 43% for metal louvers (as metal will reduc e the free air by 30%). Refer to the National Fuel Ga s Code for complete information. In buildings of tigh t construction all air should be taken from outside. Warning: In areas where outside temperatures routinely come close to freezing, sealed combustion operation is required. Use a concentric termination or separate terminations for combustion and vent, which must be installed on the same wall or roof surface, however never facing the direction of prevailing winds. Failure to do so may result in heat exchanger freezing up and bursting. This failure is not covered under the manufacturers warranty. Warning: When installed in an environment where corrosive chemicals or dirty air (e.g. hair salons, car washes) are present the twin pipe system is required. Warning: Terminations must prevent rain and debris from entering the combustion air and exhaust vent piping.
6 720 644 894 Installation instructions25 3.5 Proper location for installing your heater Carefully select the location of the water heater. For your safety and for proper heater operation, you mu st provide combustion air to the heater and a proper exhaust vent system. Follow the guidelines below: B 1. Locate the heater where venting, gas and plumbing connections are feasible and convenient. B 2. The hot water lines should be kept short and insulated to save energy. Centrally locating the wa ter heater is recommended to keep hot water distribution times even throughout the structure. 3.6 Heater placement and clearances The water heater design is approved for installation on a combustible wall (see chapter 3.7 Mounting installation) provided the floor covering below the heater is noncombustible. For installations in an alcove or closet, maintain the minimum clearances to combustible and non- combustible materials. See Fig. 7, page 9. 3.7 Mounting installation If wall is sheathed with plaster or drywall, it is recom- mended that two support boards, either 1”x4” or 1/2 (minimum) plywood first be attached across a pair o f studs, see Fig. 26, page 26. B Secure the wall mounting bracket provided with the heater to a wall surface. The heater must be kept level on the wall surface, see Fig. 27, page 26. B Hang the appliance on the bracket, see Fig. 28, pag e 27. Fig. 26 Distance between support boards Warning: The water in this water heater is cold and always remains cold except for the times the burner is on. In the event of power outage in conjunction with freezing temperatures, it is recommended that the heater be drained. See chapter 6.2, page 41 “Winterizing” for draining instructions. Warning: Flammable materials, gasoline, pressurized containers, or any other items or articles that are potential fire hazards must NOT be placed on or adjacent to the heater. The appliance area must be kept free of all combustible materials, gasoline and other flammable vapors and liquids. Warning: before mounting appli- ance: B Check that there are no loose or damaged parts inside the appli- ance B Confirm that the gas type of the heater matches the gas supply you will be connecting the heater, See Fig. 2, page 6. i Front cover should be removed (see instructions on page 7) in order to inspect components visually. Warning: Do not install this appliance on a carpeted wall. The heater must be mounted on a wall using appropriate anchoring materials. Warning: In areas where outside temperature is routinely below 32°F and the heater is to be installed on the inside of an exterior wall, a minimum 2 air gap or rigid insulation between the heater back and the wall is recommended. Studs 16 (406mm) on center
6 720 644 89426 Installation instructions Fig. 27 Leveling wall mounting bracket Fig. 28 Mounting the heater 3.8Gas piping & connections Before connecting the gas supply, check the rating plate on the right side of the heater to be sure th at the heater is rated for the same gas to which it will b e connected. In the United States: The installation must conform with local codes or, in the absence of local codes, the National Fuel Gas Code ANSI Z223.1/NFPA 54. In Canada: The Installation must conform to CGA B14 9 INSTALLATION CODES and/or local installation codes. GAS CONNECTIONS B Install a manual gas shut off valve on the gas supp ly line within easy reach of the appliance. B Install a union when connecting gas supply. B The minimum internal diameter required for any appliance connector is ¾”, see Fig. 31 for more details on pipe sizing. B Undersized flexible appliance connector not permit- ted. B National Fuel Gas Code requires that a sediment trap (drip leg) be installed on gas appliances not so equipped. The drip leg must be accessible and not subject to freezing conditions. Install in accordan ce with the recommendations of the serving gas supplier, see Fig. 2. Warning: Appliance must be installed vertically. 6720608158-64.1AL 6720608158-05.1AL6720608158-05.1AL Warning: DO NOT connect to an unregulated or high pressure propane line or to a high pressure commercial natural gas line. Warning: The heater must be isolated from the gas supply piping system during any pressure testing of that system at test pressures equal to or more than 0.5 psig. If overpressure has occurred, such as through improper testing of the gas lines or malfunction of the supply system, the gas valve must be checked for safe operation.
6 720 644 894 Installation instructions27 Fig. 29 Gas connection Once connections are made, check for gas leaks at a ll joints. Apply some gas leak detection solution to a ll gas fittings. Bubbles are a sign of a leak. A combustib le gas detector may also be used to detect for leaks. GAS LINE SIZING The gas supply piping for a single heater should be sized for a maximum draw of 199,000 BTUH. Measure the length of gas supply line from the buildings g as main to the heater and use the tables in Fig. 31, pa ge 28 or the gas line manufacturer’s sizing tables to determine the pipe diameter necessary. If there are more gas drawing appliances on the line, size the g as line according to the total maximum amount of BTU draw input rating of for all appliances combined. Note: Undersizing the gas line may result in diminished hot water flow rate and temperature. See chapter 3.1 4, page 35 for the procedure to measure gas pressure. Proper gas pressure must be confirmed at time of installation. Fig. 30 Danger: If you have a leak, shut off the gas. Tighten appropriate fittings to stop leak. Turn the gas on and check again with a gas leak detection solution. Never test for gas leaks using a match or flame. Gas supply Cap Minimum 3” Gas piping Inlet gas particle screen (included)
6 720 644 89428 Installation instructions FOR NATURAL GAS Maximum Capacity of pipe in Cubic Feet of Gas per H our for Gas Pressure of 0.5 Psig or less and a Pressure drop of 0.3” in Water Column (0.75mbar).(Based on a 0.60 Specific Gravity Gas) Btu numbers given in thousands. Fig. 31 Follow boxed numbers for piping just one C 1050 ES (example: ¾” B.I. Natural Gas pipe for 10 ft (3.0m). will handle 278,000 btu’s (81.5 kWh). For multiple appliances combine the total maximum btu input load and then refer to applicable chart below. * EHD = Equivalent Hydraulic Diameter. The greater the value of EH D, the greater the gas capacity of the t ubing . Maximum Capacity of Semi-Rigid (flexible, non corrugated) Tubing in Thousands of BTU per Hour of Undiluted Liquefied Petroleum Gases (at 11 inches Water Column Inlet Pressure). (Based on a Pressure Drop of 0.5 Inch Water Column) * Source National Fuel Gas Code NFPA 54, ANSI Z223.1 - No Additional Allowance is necessary for a n ordinary number of fittings FOR LP GAS Maximum Capacity of Pipe in Thousands of BTU per Ho ur of Undiluted Petroleum Gases (at 11 inches Water Column Inlet Pressure) (Based on a Pressure Drop of 0.5 Inch Wat er Column). * EH D = Equivalent Hydraulic Diameter. The greater the value of EHD, the greater the gas capacity of the t ubing. Nominal IronLength of Black iron Pipe , Feet Pipe Internal Size, Diameter inches inches 10 20 30 40 50 60 70 80 90 100 125 150 175 200 1/4 0.364 32 22 18 15 14 12 11 11 10 9 8 8 7 6 3/8 0.493 72 49 40 34 30 27 25 23 22 21 18 17 15 14 1/2 0.622 132 92 73 63 56 50 46 43 40 38 34 31 28 26 3/4 0.824 278 190 152 130 115 105 96 90 84 79 72 64 59 551 1.049 520 350 285 245 215 195 180 170 160 150 130 120 110 100 1 1/4 1.380 1050 730 590 500 440 400 370 350 320 305 275 250 225 2 10 1 1/2 1.610 1600 1100 890 760 670 610 560 530 490 460 410 380 350 320 2 2.067 3050 2100 1650 1450 1270 1150 1050 990 930 870 780 710 65 0 610 Tube size, inches EHD* 10 20 30 40 50 60 1/2 18 EHD82 58 47 41 37 34 3/4 23 EHD161 116 96 83 75 68 1 30 EHD330 231 188 162 144 131 1 1/4 37 EHD639 456 374 325 292 267 Length of Flexible Corrugated Stainless Steel Tubin g (CSST), Feet Tube size inches EHD* 10 20 30 40 50 1/2 18 EHD 129 91 74 64 58 3/4 23 EHD 254 183 151 131 118 1 30 EHD 521 365 297 256 227 Leng t h o f Flexib le Co r r ug at ed St ainless St eel Tub in g ( CSST) , Feet Nominal iron Black Iron Pipe pipeLength of Pipe, Feet Inches10 20 30 40 50 60 80 100 125 150 200 1/2 291 200 160 137 122 110 94 84 74 67 58 3/4 608 418 336 287 255 231 197 175 155 140 120 1 1145 787 632 541 480 434 372 330 292 265 227 CopperOutside Length of Tubing, Feet diameter Inch 10 20 30 40 50 60 70 80 90 100 3/8 39 26 21 19 _ _ _ _ _ _ 1/2 92 62 50 41 37 35 31 29 27 26 5/8 199 131 107 90 79 72 67 62 59 55 3/4 329 216 181 145 131 121 112 104 95 90
6 720 644 894 Installation instructions29 3.9 Water connections BWhen facing the heater, the ¾” cold connection is o n the bottom right and the hot connection is on the b ot- tom left. Centrally locating the water heater is re com- mended to keep hot water distribution times even throughout the structure. Fig. 32 Fig. 33 Water filter 1 Water valve with engine 2 Water filter BThe use of unions when connecting both water pipes to the inlet and outlet connections is required. This will facilitate any necessary servicing. B Plastic or PEX type plumbing line materials are not suitable for connecting directly to the water heate r. B Although water piping throughout the building may be other than copper, we recommend that copper or suitably rated stainless steel flex line piping be used for the water connections for 1.5’ on either side o f the water heater (follow local codes if more stringent). B Never sweat any piping directly to or beneath the water connections, as damage will occur to the internal water valve from heating of the pipe. B Keep water inlet and outlet pipes to no less than ¾ (19.05mm) diameter to allow the full flow capacity. B 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. B Full port shutoff valves should be installed on both the cold water supply and hot water outlet lines to facilitate servicing the heater (see Fig. 34 ). B For installation on a private well system with the use of a pressure tank, the lowest pressure range setti ng recommended is 40-60 psi (2.75 - 4.15bar). 3.10 Water quality Water quality can have an impact on appliance longevity and may void the manufacturers warranty. For water analysis data call your local water depar tment, or if on a well, have well water analyzed periodica lly. If water quality exceeds one or more of the values specified below, Bosch recommends consulting a loca l water treatment professional for water softening/ conditioning options. Warning: This heater is not approved for preheated water applications exceeding 140°F (60°C). Warning: In applications where inlet water temperature can exceed 140°F (60ºC), a 3-way valve or mixing valve must be installed before the appliance to prevent water exceeding 140°F (60°C) from entering the appliance. HOT COLD DescriptionMax. Levels pH pH 6.5 - 8.5 TDS (total Dissolved Solids)mg/l or ppm 500 Total hardnessmg/l or ppm100 (6 grains) Aluminum mg/l or ppm 2.0 Chloridesmg/l or ppm 250 Coppermg/l or ppm 1.0 Ironmg/l or ppm 0.3 Manganesemg/l or ppm 0.05 Zincmg/l or ppm 5.0 Table 20
6 720 644 89430 Installation instructions Connecting the pressure relief valve (PRV) A listed pressure relief valve must be installed at the time of installation. No valve is to be placed between the PRV and the heater . No reducing coupling or other restriction may be installed in the discharge line. The discharge line must be a minimum of 4” above a drain and installed such that it allows complete dr ainage of both the PRV and the line. The discharge line mu st be placed where it will not cause any damage. The location of the PRV must be readily accessible for servicing or replacement, and be mounted as close t o the water heater as possible. See Fig. 34. To insta ll the PRV, a suitable fitting connected to an extension o n a “T” fitting can be sweated to the hot water line. Support all piping. Fig. 34 Plumbing Connections (with shutoff valves) and Pressure Relief Valve Pressure relief valve