Bosch 330-PN-L Installation Manual Download Page 29 | Manualshive

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6 720 644 951 (2014/11)

330 PN

Interior components and diagram parts list | 29

9

Interior components and diagram parts list

9.1

Interior components

Fig. 26

Functional scheme

[4]

Heat exchanger

[5]

Burner

[10] Temperature adjustment selector
[11] Water valve
[20] Gas connection
[22] Flexible hot outlet

[26] Gas control slide
[30] Pilot gas tubing
[102]Piezo

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Summary of Contents for 330-PN-L

Page 1: ...s 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 smell gas Close gas valve Open windows Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you ...

Page 2: ...5 4 Setting the water temperature 22 5 5 Draining water from heater 23 6 Maintenance and service 23 6 1 Maintenance intervals 23 6 2 Water valve 23 6 3 Pilot 23 6 4 Main burners 24 6 5 Vent assembly heat exchanger 24 6 6 Mineral scale build up 24 6 6 1Descaling heat exchanger 24 7 Troubleshooting 25 7 1 Introduction 25 7 2 Pilot does not light 25 7 3 Pilot lights but goes out when button is releas...

Page 3: ...vel e g bathrooms saunas Function To ensure that the water heater functions properly follow these installation and maintenance instructions Never close the blow off line of the T P safety valve For safety reasons water may escape during heating If you smell gas Turn off the gas shut off valve Open windows and doors Do not try to light the appliance Do not touch any electrical switch telephone and ...

Page 4: ...r draw off point When the water heater is in operation temperatures in excess of 122 F 50 C can occur To limit the temperature at the tap install a thermostatic DHW mixing valve Waterheatedforwashingthelaundry dishesandforother cleaning purposes can cause scalding and permanent injuries Children elderly andhandicappedpersonsaremorelikely to be permanently injured by hot water Never leave such indi...

Page 5: ...omply 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 DANGER Electric shock Shock hazard line voltage is present Before servicing the water heater unplug power supply cord from outlet Failure to do so could result...

Page 6: ...o thermal expansion in a closed water supply system Contact the water supplier or local plumbing inspector on how to correct this situation Do not plug the relief valve WARNING Property damage If the water heater is used in a space heating application all piping and components connected to the water heater must be suitable for use with potable water WARNING Personal Injury from toxic chemicals Tox...

Page 7: ...2 Propane water column 10 5 14 Natural Gas water column 5 7 14 Water Hot water connection inches NPT Cold water connection inches NPT Capacity GPM l min 2 6 9 8 Minimum water flow2 GPM l min 0 5 1 9 Minimum recommended water pressure PSI bar 13 PSI 0 9 bar Water valve material Fibreglass reinforced polyamide PA Connections Bottom of heater Dimensions Depth inches mm 8 66 220 mm Width inches mm 12 ...

Page 8: ...uel Gas Code ANSI Z223 1 NFPA 54 In Canada The Installation should conform with CGA B149 1 2 INSTALLATION CODES and or local installation codes 2 Carefully plan where you install the heater Proper clearances must be followed 3 The appliance must be isolated from the gas supply piping system by closing its individual manual gas shutoff valve not supplied with heater during any pressure testing at p...

Page 9: ...emperature control 11 Water valve 20 Gas connection 26 Output control 36 Front cover 37 Hole for fixing to wall 38 Exhaust pipe to connector 39 Draft diverter with flue gas monitor 40 Gas valve 49 Observation window 102 Piezo Dimensions inches mm 330 PN A B C D E F G H 12 310 22 83 580 9 228 4 100 20 71 526 2 36 60 1 25 1 2 Table 3 Dimensions in inches mm ...

Page 10: ... 306 mm FRONT B 4 inches 100 mm BACK 0 inches SIDES 4 inches 100mm BOTTOM C 12 inches 306 mm Table 4 WARNING Thewaterinthiswaterheateris cold and always remains cold except for the times that hot water is being used DO NOT INSTALL IN AN AREA WHERE IT COULD FREEZE Drain the heater entirely if freezing temperatures are anticipated in area where heater is installed See chapter 5 5 for draining instru...

Page 11: ...g screws provided as shown in Fig 5 Fig 5 Incandescent particle tray illustration 1 Screws 2 Incandescent particle tray Mounting heater The 330 PN is design certified for mounting on a wall The heater must be mounted on a wall using appropriate anchoring materials If wall is a stud wall sheathed with plasterboard it is recommended that support board s either 1x4 s or 1 2 minimum plywood first be a...

Page 12: ...spaces a Anunconfinedspaceisonewhosevolumeisgreaterthan50 cubic feet per 1000 Btu per hour of the combined rating of all appliances installed in the space That would be 5850 cubic feet for the BOSCH PRO 330 PN alone b Installationsinstructuresthathavebeentightlyconstructed air infiltration rate of 0 40 ACH or less must be provided for combustionairpertheNationalFuelGasCode ConsultaHVAC specialist ...

Page 13: ...dered horizontal Horizontal sections must slope upwards at least inch for every foot of its horizontal length and be properly supported Keep the horizontal section short and avoid too many elbows The maximum horizontal run allowed is half of the total vertical vent height horizontal vent connectorsandelbowsarenottobeconsideredinthetotalgas vent height Vent termination The gas vent constructed of d...

Page 14: ...terialmustbelistedforuse only with naturally drafting draft hood equipped gas appliances Followmanufacturesinstructionsforinstallationof listed lining material You may not vent any other fuel burning appliances into any free space remaining in the chimney The minimum vertical gas vent length within the masonry chimney should be no less than 6 ft 1 8 m the vent terminator should extend at least 3 f...

Page 15: ...e unit The regulator supplied with the heater is preset for the gas shown on the rating plate to the correct pressure It is an appliance level regulator designed for low inlet pressure less than 1 2 Psig or 14 W C GAS CONNECTIONS Install a manual gas shut off valve on the gas supply line Install a union when connecting gas supply Attach the appliance regulator to the inlet gas pipe The minimum dia...

Page 16: ... On appliances being installed above 2000 ft 660 meters elevation the inlet gas pressure should be set at installation to the value shown below Note The gas pressures specified below refer to pressures taken at the pressure tap on the gas inlet pipe just above the regulator See chapter 4 8 for measuring gas pressure MAXIMUM INLET GAS FLOW PRESSURE SETTING DANGER If you have a leak shut off the gas...

Page 17: ...Gas in the Commonwealth of Massachusetts and not recommended elsewhere Followboxednumbersforpipingjustone330PN example B I Natural Gas pipe for 20 ft 6 1m will handle 190 000 btu s 55 7 kWh For multiple appliances combine the total btu input load and then refer to applicable chart below EHD Equivalent Hydraulic Diameter The greater the value EHD the greater the gas capacity of the tubing FOR LP GA...

Page 18: ...s EHD Lenght of Flexible Corrugated Stainless Steel Tubing CSST Feet 10 20 30 40 50 60 1 2 18 129 91 74 64 58 53 3 4 23 254 183 151 131 118 107 1 30 521 365 297 256 227 207 1 1 4 37 971 661 528 449 397 359 Table 9 Nominal Iron Pipe Size inches Black Iron Pipe Lenght of pipe Feet 10 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 ...

Page 19: ...more stringent Never sweat any rigid piping directly to or beneath the water connections or damage can occur to the internal water valve from heating of the pipe Plastics or other PEX type plumbing line materials are not recommended for connecting directlytothewaterheater Keepwaterinletandoutletpipesto no less than 12 7mm diameter to allow the full flow capacity Itisrecommendedthatallwaterpipingbe...

Page 20: ...efore operating your water heater A This appliance employs a piezo igniter to light the pilot burner When lighting the pilot follow these instructions exactly B What to do if you smell gas WHAT TO DO IF YOU SMELL GAS Close gas valve Open windows Do not try to light any appliance Do not touch any electric switch do not use any phone in your building Immediatelycallyourgassupplierfromaneighborsphone...

Page 21: ...by pushing the piezo button This step may have to be repeated Fig 19 Observe the pilot flame through the peephole The gas valve button should be held down for at least 15 seconds with pilot burning before releasing When the gas valve button is released the pilot should continue to burn If the gas valve button does not pop out when released stop and immediately call your service technician or gas s...

Page 22: ...e heater see Fig 21 adjusts temperature by adjusting flow capacity See table 12 for details Fig 21 As the temperature adjustment knob is turned counter clockwise theoutputtemperaturewilllowerandtheactivation rate will be raised Turning the knob clockwise will raise the temperature and lower the activation rate Gas control slide button The gas control slide button adjusts temperature by adjusting h...

Page 23: ...iled instruction is available on our website at www bosch climate us Shut off the installer supplied cold water isolation valve to the heater If one is not installed install beforeproceeding Openthenearesthotwatertaptodrainthe plumbing lines Position a bucket under the heater s water valve assembly to catch any water that may drain from the heater Disconnect the inlet water pipe going to the back ...

Page 24: ...ent periodic descaling may be necessary The heating coils should be flushed with a descaling solution 6 6 1 Descaling heat exchanger 1 Disconnect electrical supply from the water heater 2 Shut off the water supply to the water heater using installer supplied isolation valve 3 Open hot water taps to drain and relieve pressure from the plumbing system 4 Drainwaterfromtheunit sheatexchangerbydisconne...

Page 25: ...gas type indicated in rating sticker located on right hand side of cover coincides with the gas type you are using NG is a natural gas unit and LP is for liquid propane 3 Check all connections of the pilot safety circuit The pilot safety circuit consists of a thermocouple overheat sensor ECO flue gas sensor safety spillage switch models with Powervents only and the electromagnet See parts diagram ...

Page 26: ...are clear of debris Also the water heater s inlet filter screen should be inspected and cleaned see chapter 6 2 7 The water valve assembly which actuates the burners requiresperiodicmaintenance every2 5yearsdependingon water quality and use see chapter 6 2 7 6 Hot water temperature fluctuates at tap 1 Close off installer supplied cold water shut off valve if none installed install before proceedin...

Page 27: ...is for liquid propane 2 Flowatoneparticulartapistoogreatortoomanyfixturesare running at one time Lower flow to stay within heater s specifications 3 Ensure the gas control slide button is all the way to the right In addition the temperature adjustment knob on water heater maybe set too low Turn the knob clockwise for higher temperatures and test the water temperature 4 Shut off installer supplied ...

Page 28: ...r proper combustion at high elevations the inlet gas pressure should be set at installation to the value shown in table 6 on page 16 while operating at maximum BTU A gas pressure reading is needed to proceed further Contact your original installer or a licensed gas technician to obtain this reading 4 Ventilationisnotadequate Ensureadequatecombustionair is being supplied to the unit in accordance w...

Page 29: ...list 29 9 Interior components and diagram parts list 9 1 Interior components Fig 26 Functional scheme 4 Heat exchanger 5 Burner 10 Temperature adjustment selector 11 Water valve 20 Gas connection 22 Flexible hot outlet 26 Gas control slide 30 Pilot gas tubing 102 Piezo ...

Page 30: ...6 720 644 951 2014 11 330 PN 30 Interior components and diagram parts list 9 2 Components diagram Fig 27 Components Diagram ...

Page 31: ...358 0 22 Poppet valve head 3 LP 8 708 500 359 0 23 Electromagnet 8 707 201 028 0 24 Electromagnet cap 8 703 305 283 0 25 Valve operation housing 8 708 008 069 0 26 Guide plate 8 701 000 380 0 27 Gas pressure regulator LP 8 707 406 083 0 27 Gas pressure regulator NG 8 707 406 084 0 28 Water valve 8 707 006 286 0 29 Watervalve pushrod 10x 8 703 204 051 0 30 Diaphragm A 8 700 503 079 0 31 Inlet water...

Page 32: ...not cover the following circumstances 1 Components or parts not provided by BTC 2 Serviceable items and normal maintenance as required per the Installation Manual 3 The workmanship of any installer BTC disclaims and does not assume any liability of any nature for unsatisfactory performance caused by improper installation repair or maintenance 4 Anylaborormaterialcostsforremoval reinstallation repa...

Page 33: ...sk that the contractor notify the distributor from whom the contractor purchased the Water heater If this action is not possible or you don t receive a response contact Bosch Thermotechnology Corp 50 Wentworth Avenue Londonderry NH 03053 To process your claim you will need a copy of your original invoice or other proof of purchase and documentation showing the original installation date and locati...

Page 34: ...ocated on rating plate on right side panel ___ ___ ___ ___ ___ ___ ___ ___ Gas Pressure Reading 1 1 See Chapter 4 8 page 19 and gas pressure table to be filled out by installer Static Operating Water Pressure Building Water Pressure Range if on Well system Installing Company Installer name Address Phone Table 14 Installation manual should be left with the owner after the installation is tested and...

Page 35: ...6 720 644 951 2014 11 330 PN 35 Notes ...

Page 36: ......

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