Gebruiksaanwijzing /service van het product 125FX NG van de fabrikant Bosch Appliances
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W ARNING : Improper inst allation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information consult a qualified installer , service agency or the gas supplier .
2 AquaStar 125FX LP and 125FX NG Specifications Water Connection 1/2” Thread fitting NPT H x W x D 29 3/4” x 18 1/4” x 8 3/4" V ent 4” (Category III Gas Appliance) Gas Connection 1/2” NPT thread Min. Water Pressure 18 Psi Max. Water Pressure 150 Psi Shipping Weight 50.
3 MINIMUM INST ALLA TION CLEARANCES FROM COMBUSTIBLE AND NON COMBUSTIBLE MA TERIALS FOR ALCOVE OR CLOSET INST ALLA TIONS FRONT VIEW SIDE VIEW AQUAST AR MODEL 125FX D084_089 * On a combustible wall surface the unit should be mounted away from the wall to provide adequate clearance of the vent pipe.
4 GENERAL RULES TO FOLLOW FOR SAFE OPERA TION 1. Y ou should follow these instructions when you install your heater . In the United S tates: The inst allation must conform with local codes or , in the absence of local codes, the National Fuel Gas Code ANSI Z223.
5 COMBUSTION AIR REQUIREMENTS The AquaS t ar 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.
6 Fig. 3 - Incandescent Particle T ray Illustration 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 .
7 Fig 4: Some V enting 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 ANSI 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 inlets.
8 Fig 5: Side wall exit locations for mechanical draft vent terminals SOFFIT VENT HOOD 7’ MINIMUM ABOVE PUBLIC WALKW A Y ONE FOOT ABOVE GRADE 3’ ABOVE ANY FORCED AIR INLET WITHIN 10’ 4’ MIN 1.
9 GAS PIPING , CONNECTIONS and Gas Regulator Before connecting the gas supply , check 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.
10 Fig. 6 - Appliance pressure regulator (with directional arrow on reverse side pointing up) 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.
11 - T ypical setups are shown below with the pressure relief valve attached. The pressure relief valve is supplied with the heater , and should only be fitted on the hot water outlet as shown. The cold water inlet setup will be identical to diagrams below but without the pressure relief valve.
12 6. Turn the hot water faucet on to the minimum flow required to activate the heater . The automatic ignition system first ignites the safety pilot burner which then ignites the main burner in about 4 seconds. The power exhaust will then activate. 7.
13 Fig. 13 - Characteristic Pilot Flame Flame sensor Piezo Electrode Pilot Flame: The pilot flame should burn with a clean, sharp, blue flame and should resemble the diagram in Fig. 13. If the flame is soft and yellow , the pilot burner orifice may need to be cleaned or replaced.
14 3. W ater flow is not sufficient to activate heater . Water flow rate at faucet is below minimum flow needed to activate heater . When temperature adjustment knob is turned all the way clockwise, the AquaS t ar model 125FX requires 1/2 gallon per minute flow to activate the heater .
15 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 immediately .
16 WA TER IS T OO HOT 1 . T emperature Selection too high Turn the temperature adjustment knob counter-clockwise (to the left) to lower the maximum water temperature. Note: This will increase the activation flow rate. 2. Inlet water temperature is very warm (60º-75ºF) Reduce inlet gas supply to lower the heaters degree rise.
17 5 11 1 4 9 10 12 2 6 8 Fig. 17 - Diagram of AquaSt ar 125FX 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. Electronic control box 8. Power cord 9. on/off switch 10.
18 Fig. 18 INTERIOR COMPONENTS DIAGRAM AND P ARTS LIST 125FX 1 Front Cover 8 705 421 255 2 AquaS tar Decal 8 701 103 074 3 Plastic lower snap-on 8 705 506 451 4 T emperature adjustment knob complete 8.
19 Fig. 18 - INTERIOR COMPONENTS DIAGRAM AND P ARTS LIST.
Replacement Parts available from North American Distributor CONTROLLED ENERGY CORP . 340 Mad River Park W ait sfield, V ermont 05673 Phone 800-642-31 11 Fax (802) 496-6924 ww w .controlledenergy .com techsuppport@controlledenergy .com VULCANO T ermodomésticos S.
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