User manual BOSCH W 325 K..T1

[. . . ] Instantaneous gas water heater Models W 325 K. . T1 W 400 K. . T2 · Installation · Operation · Maintenance The Bosch instantaneous water heater is a high efficiency, space saving answer to your water heating needs. All Bosch instantaneous water heaters heat water only as required; noenergy is lost maintaining a large voluma of water at elevated temperatures as in tanktype storage water heaters. Certified for space heating in combination with potable water only. Not certified for heating only. READ INSTRUCTIONS CAREFULLY BEFORE INSTALLING NOTICE TO INSTALLER: Please leave this manual with the owner or affix adjacent to appliance. [. . . ] Before testing the relief valve take necessary precautions to prevent water damage. Lift the lever on the valve several times until the valve seats properly and operates freely. Do not check the relief valve when hot water is being drawn and the main burner is on. Water exiting the valve under these conditions would be hot. If the pressure relief valve on the appliance discharges this is an indication of water pressure above the pressure rating of the relief valve. If the pressure relief valve continually discharges on a periodic basis contact the water supplier or local plumbing inspector on how to correct the situation. Do not plug the pressure relief valve. PERIODIC REMOVAL OF LIME DEPOSITS Figure 12 After 12 to 24 months of service, depending on frequency of use and water harness, the heater should be checked for accumulation of calcium carbonate (lime) and delimed, if necessary. Thereafter a regular schedule, based on initial inspection findings, should be set up to delime the heater. 10 BOSCH INSTANTANEOUS WATER HEATERS APPROVED FOR SPACE HEATING UNDER CLASS IV When using the Bosch Models W 400-K for water heating and space heating the following requirements shall apply : All space heating equipment, piping and components connected to the heater shall be suitable for use with potable water. Toxic chemicals such as boiler treatment compounds, antifreeze etc, shall not be introduced into potable water used for space heating. When used for potable water this unit may not be connected to any heating system or components previously used solely for space heating. A temperature mixing valve must be installed where space heating temperature requirements are higher than normal domestic supply temperatures to reduce scald hazard potential. Particular care must be taken to select the correct type of thermal mixing valve to satisfy the installed application requirements, i. e. If full anti-scald protection is specified then only that type of valve must be selected that is supported by the manufacturer's claim. Below is a typical schematic which should be used as a guide only. Always obey the installation instructions supplied by the mixing valve supplier. Temperature Mixing Valve Regulator 130°F Hot Water Service check valve Feed to Space Heating Equipment Cold Water Supply to tempering regulator Supply to Bosch Heaters HOT WATER STORAGE TANK Note: These schematics and explanatory text should not be used for design purposes, but only as a general guide. Actual system design and installation must be by qualified people. Return from Bosch Heaters and Space Heating SEPARATE PUMPS REQUIRED FOR HEATER AND CIRCULATION SYSTEM Installations must conform to CSA B214 hydronic standard and local code requirements. 11 12 Nº 1 2 4 5 6 7 8 9 10 10 11 11a 12 13 13 14 15 16 17 18 18 19 20 21 22 23 24 25 26 27 28 29 30 31 31 32 33 Description Front shell Cover Draught diverter Heat exchanger Connecting pipe hot Cold water pipe Washer 1/2" Temperature limit Main burner Main burner Pilot burner ( 75 ) Filter Sparking plug Pilot injector ( 5 ) Pilot orifice (49) Pilot gas pipe Thermocouple Washer 1" Throttle disc ( 7. 0 ) Gas valve Gas valve Gas supply pipe Magnetic unit Washer Gas filter Termo connection Water valve Sealing screw Diaphragm Slow-ignition valve Setting screw O-ring Valve Venturi (12) Venturi (16) Water strainer water elbow fiting Part Number for Models W325 K. . P. . T1 W 400 K. . . P. . . T2 8705401525 8703304011 8705505354 8705406235 8700705431 8700705294 8710103045 8707206017 8708120296 8708120298 8708105337 8700507055 8708107002 8708200005 8748200173 8710707166 8747202083 8710103060 8700100174 8707011110 8707001942 8700705464 8747201094 8700103144 8700507051 8747202078 8707002478 8703406214 8700503043 8708503060 8703404098 8700205050 8708500230 8708205248 8700507059 8700705472 8705505307 8705406132 LPG NG 8708120469 8708120471 NG LPG LPG NG LPG 8707001890 8707001897 8707002393 8703406204 8700503050 8708503062 8703404092 8708205235 13 ASTRAVAN DISTRIBUTORS, LTD. V7H 1S1 Phone (Canada): (604) 929-5488 Phone (USA): (206) 860-8448 Site Internet: www. astravan. com Chauffe-eau à gaz instantané Modèles W 325 K. . . T1 W 400 K. . . T2 · Installation · Fonctionnement · Entretien Le chauffe-eau instantané BOSCH est la réponse pour haute éfficacité dans un espace restreint en satisfaisant tout vos besoin d'eau chaude. Tous les chauffes- eaux instantanés Bosch chauffent seulement la quantité d'eau sur demande sans dépenser de l'énergie pour maintenir la température élevé de l'eau dans le réservoir. POUR VOTRE SECURITE Si vous sentez un gaz odorant: 1. 3. 6 720 601 783 CA (03. 11) AL POUR VOTRE SECURITE Ne pas placer ou utiliser de la gasoline ou tout autres liquide et vapeur inflammable a proximité de ce brûleur ou d' autres appareils. Ouvrir les fenêtres Ne toucher pas à aucun contact électrique Eteindre toute flamme Appeler immédiatement votre fournisseur de gaz ASTRAVAN DISTRIBUTORS, LTD. 123 Charles Street North Vancouver, B. C. V7H 1S1 Téléphone (Canada): (604) 929-5488 Téléphone (USA): (206) 860-8448 Site Internet : www. astravan. com A noter : En cas de problème contacter votre vendeur ou l'ouvrier d'installation. Dimensions Figure 1 Pression maximum hydrostatique de l'eau - 0. 97 MPa ( 150 lb / po ca. ) Pression maximum d'opération recommander - 0. 69 MPa (100 lb / po ca) Pression minimum d'opération - 0. 05 MPa (7. 3 lb/po ca) au taux de débit minimum. Dimension en milimètre (pouces) Modèle W325 W400 A 400 17 1/4" 440 17 1/4" Modèle Type de gaz Naturel Propane W325 Naturel Propane W400 Naturel Propane W400 Naturel Propane haute** (2, 000 - 4, 500 Pieds) 30. 85 kW ( 105, 000Btu/hr) 0. 82 diam. 16 normale (0 - 2, 000 Pieds) 34. 28 kW (117, 000Btu/hr) 0. 82 diam. [. . . ] SOUPAPE DE SURETE A PRESSION Au moins une fois par année, le soupape de sûreté de pression doit être vérifié pour assurer qu'elle est en bonne condition de fonctionnement. Avant la vérification de la soupape de sûreté, il faut prendre les précautions nécessaire pour risque de dommage d'eau. Levez le levier sur la soupape plusieurs fois jusqu'à la soupape s'assoit proprement et fonctionne librement. Ne pas vérifier la soupape pendant l'opération quand l'eau chaude est tiré et que le brûleur principal est allumé. [. . . ]