AquaStar 125FX NG manual

WARNING : Improper installation, adjustment , alt eration , service or maintenance can c ause injury or property damage. Refer to this manual. For assistance or additional information consult a qualified installer, service agency or t he gas supplier. Upon completion of the installation, these instructions should be handed to the user of the applia[...]

2 6 720 606 601 AquaSt ar 1 25FX LP and 1 25FX NG Specific ations W ater Connection 1 /2” Thread fitting N P T H x W x D 29 3/ 4” x 1 8 1 /4” x 8 3/4" V ent 4” Gas C onnection 1 /2” N PT thread Min. W ater Pressure 1 8 Psi Max. W ater Pressure 1 50 Psi Shipping W eight 50.6 LB Net W eight 44 LB 2.0 G PM at 90 ° rise 4.0 G PM at 45 ?[...]

3 6 720 606 601 M I N I M U M I N S T ALLA TI ON C LE AR A N C E S F R OM C O M B USTI B LE AN D N ON C OM B U S TI B LE MA TE R IALS F OR AL C O VE OR C L O SET I N S T ALLA TI ON S FR ONT VI EW SI D E VI EW A QUAST AR MO DE L 1 25FX * On a combustible wall surface the unit should be mounted away from the wall to provide adequate clearance of the [...]

4 6 720 606 601 G EN E RAL R U LES T O FOLL OW FOR SAFE O PE R A TI ON 1. Y ou should follow these instructions when you inst all your heater . In the United St ates: The installation must conform with local codes or , in the absence of local codes, the National Fuel Gas Code AN SI Z223. 1 / N FP A 54. In Canada: The Installation should conform wit[...]

5 6 720 606 601 COMBUSTION AIR REQUIREMENTS The AquaStar water heater holds cold water in its copper heat exchanger and brass water valve when not in use. Because of this, any cold air that comes in through the unit’s vent pipe is capable of freezing these components. This Installation Manual specifies the vent length requirements and the amount [...]

6 6 720 606 601 Fig . 3 - Inc andescent Part icle T ray Illust ration The incandescent particle tray (shipped loose in the carton with the water heater) must be attached at the bottom of the water heater front cover at the time of installation. Use the screws provided. See figure 3. SCREWS INCANDESCENT P ARTICLE TRA Y Fig. 2 - Mounting the Heater W[...]

7 6 720 606 601 VENTING WARNING: Do not reduce the vent pipe size and do not common vent with any other vented appliance or stove. This appliance must be vented horizontally to the outside with a sealed 4” single wall vent pipe. The appliance’s flue gasses are under positive pressure and must travel through a single wall 4” pipe that is seale[...]

8 6 720 606 601 Fig 4 : Some V ent ing Guide Suggestions An approved side wall vent terminal must be used when the water heater is vented through a side wall. Locate in accordance with AN SI Z223. 1 and local applicable codes . See Fig 5 for restrictions in location of vent terminal in relation to opening doors and windows, grade, and forced air in[...]

9 6 720 606 601 Fig 5: Side wall exit locations for mechanical draft vent terminals SOFFIT VENT HOOD 7’ MINIMUM ABOVE PUBLIC WALKWA Y ONE FOOT ABOVE GRADE 3’ ABOVE ANY FORCED AIR INLET WITHIN 10’ 4’ MIN 1’ MIN 4’ MIN 4’ MIN 4’ MIN 1’ MIN VENT HOOD MUST BE MOUNTED FOUR FEET A WA Y FROM DOORS AND WINDOWS VENT HOOD MUST BE MOUNTED FO[...]

10 6 720 606 601 Fig. 6 - Appliance pressure regulator (with directional arrow on reverse side pointing up) GAS LINE SIZING The pressure regulator provided with the heater is adjusted to deliver the proper gas pressure (as indicated on the rating plate and in the manual for altitude up to 2000 feet (660 meters) above sea level. On appliances being [...]

11 6 720 606 601 GAS PIPING, CONNECTIONS Before connecting the gas supply, c heck the rating plate on the right side of the front cover to be sure that the heater is rated for the same gas to which it will be connected. In the United St ates: T he installation must conform with local codes or, in the absence of local codes, the National Fuel Gas C [...]

12 6 720 606 601 Fig.7 - Water valve and water connectors, top view W A TE R CONN EC TIO N S Install the heater centrally in the building if possible and make hot water piping runs as short as possible When facing the heater , the cold water inlet will be on the right and the hot water outlet on the left.. Although water piping throughout the build[...]

13 6 720 606 601 ELECTRICAL CONNECTIONS WARNING: For safety reasons, disconnect the power supply to the heater before any service or testing is performed. WARNING: This heater must be electrically grounded in accordance with the most recent edition of the National Electrical Code , N FP A 70. In Canada , all electrical wiring to the heater should b[...]

14 6 720 606 601 O PERA T I N G INST R UC T ION S Before operating the heater , make sure that the system is filled with water. Open the cold water inlet supply to the heater fully . Open a hot water faucet to permit the water to fill the heater and the piping and to eliminate the air trapped in the system Close the hot water faucet after the water[...]

15 6 720 606 601 Fig. 1 2 - Charact eristic Pilot Flame Flame sensor Piezo Electrode W at e r V alve ( Part # 8 7 07 002802): The water valve on this heater should be serviced periodically. Lubricate component #36 on page 20 with a small amount of silicon, faucet or lithium grease every two years to keep its o rings fresh and pushrod sliding smooth[...]

16 6 720 606 601 3. W ater flow is not sufficient to act ivate heater. W ater flow rate at faucet is below minimum flow needed to activate heater . W hen temperature adjustment knob is turned all the way clockwise, the AquaStar model 1 25FX requires 1 /2 gallon per minute flow to activate the heater . As a reference, this is a flow which would fill[...]

17 6 720 606 601 Mineral deposits can eventually (3-5 years in hard water areas) corrode the water valve parts to a point where they will need replacing. Any sign of moisture at the bleed hole is a sign that the water valve needs to be replaced immediat ely . 1 0. Poor circuit connect ions at t he EC O ( overheat sensor ) or the flue gas safety dev[...]

18 6 720 606 601 WA TE R IS T OO H O T 1 . T emperature S election too high T urn the temperature adjustment knob counter-cloc kwise (to the left) to lower the maximum water temperature. Note: This will increase the activation flow rate. 2 . Inlet water temperature is very warm (60°-75°F) Reduce inlet gas supply to lower the heaters degree rise. [...]

19 6 720 606 601 Fig. 1 5 - Diagram of AquaStar 1 25FX 1 . Heat exchanger 2. Pilot assembly 3. Burner manifold gas pressure test nipple 4. Main gas burner 5. Pilot gas tubing 6. Gas valve 7. electric control box 8. Power cord 9. on/off switch 1 0. T emperature adjustment selector 1 1 . Microswitch 1 2. Gas inlet gas pressure test nipple 1 3. Exhaus[...]

20 6 720 606 601 Fig. 1 6 - I NTE RI OR CO MP ON E NTS DIA G RAM AN D P ARTS LIST[...]

21 6 720 606 601 Fig . 1 6 INTERIOR COMPONENTS DIAGRAM AN D P ARTS LIST 1 25FX 1 Cover 8 705 421 775 2T e m p era tur e ad j ustment kno b 8 702 000 111 3T e m p era tur e ad j ustment co l lar 8 700 403 008 4 Dra ft diverter 8 705 505 451 5 He at ex chan g er 8 705 406 235 6 Overheat se n sor (ECO) 8 707 206 040 7 Main burner 8 708 120 298 N G 7 M[...]

22 6 720 606 601 Fig . 1 7 - Flow chart of Aquastar 1 25 F X[...]

23 6 720 606 601 L I M ITE D W AR R ANT Y Aquast ar General Aquastar water heaters are warranted by the Manufacturer ( B OSC H ) through Controlled Energy C orp. C ontrolled Energy C orp. (C EC ) will furnish a replacement heat exchanger and will furnish a replacement of any other part which fails in normal use and service within the applicable per[...]

Replacement Parts available from North American Distributor CONTROLLED ENERGY CORP . 340 Mad River Park W ait sfield, V ermont 05673 Phone 800-642-31 1 1 Fax (802) 496-6924 ww w .controlledenergy .com/tech techsupport@controlledenergy .com VULCANO T ermodomésticos S.A. Estrada de Cacia 3801 - 856 Aveiro - PORTUGAL 5 1 e g a p e e s E L B A T E C N[...]