Bosch 125FX LP - Manuals

5 COMBUSTION AIR REQUIREMENTS The AquaStar water heater holds cold water in its copperheat exchanger and brass water valve when not in use.Because of this, any cold air that comes in through theunit’s vent pipe is capable of freezing these components.T h i s I n s t a l l a t i o n M a n u a l s p e...

6 Fig. 3 - Incandescent Particle Tray Illustration The incandescent particle tray (shipped loose in the cartonwith the water heater) must be attached at the bottom ofthe water heater front cover at the time of installation. Usethe screws provided . See figure 3. SCREWS INCANDESCENT PARTICLE TRAY Fig...

7 Fig 4: Some Venting Guide Suggestions An approved side wall vent terminal must be used when the water heater is vented through a sidewall. Locate in accordance with ANSI Z223.1 and local applicable codes. See Fig 5 for restrictionsin location of vent terminal in relation to opening doors and windo...

8 Fig 5: Side wall exit locations for mechanical draft vent terminals SOFFIT VENT HOOD 7’ MINIMUM ABOVE PUBLIC W ALKW AY 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 BEMOUNTED FOUR FEET AWAYFROM DOORS AND WINDOWS VENT HOOD MUS...

10 Fig. 6 - Appliance pressure regulator (with directional arrow on reverse side pointing up) The pressure regulator provided with the heater is adjustedto deliver the proper gas pressure (as indicated on therating plate and in the manual for altitude up to 2000 feet(660 meters) above sea level. On ...

11 - Typical setups are shown below with the pressure relief valve attached. The pressure relief valve is supplied withthe heater, and should only be fitted on the hot wateroutlet as shown. The cold water inlet setup will beidentical to diagrams below but without the pressure reliefvalve. - For ease...

12 6. Turn the hot water faucet on to the minimum flow required to activate the heater. The automatic ignition systemfirst ignites the safety pilot burner which then ignites themain burner in about 4 seconds. The power exhaust willthen activate. 7. The pilot flame will extinguish 10-30 seconds after...

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 orificemay need to be cleaned or replaced. The pilot flame shouldb...

14 3. Water flow is not sufficient to activate heater.Water flow rate at faucet is below minimum flow needed toactivate heater. When temperature adjustment knob isturned all the way clockwise, the AquaStar model 125FXrequires 1/2 gallon per minute flow to activate the heater.As a reference, this is ...

17 5 11 1 4 9 10 12 2 6 8 Fig. 17 - Diagram of AquaStar 125FX 1. Heat exchanger 2. Pilot assembly 3. Burner manifold gaspressure 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. Temperature adjustment selector 11. Microswitc...

18 Fig. 18 INTERIOR COMPONENTS DIAGRAM AND PARTS LIST 125FX 1 Front Cover 8 705 421 255 2 AquaStar Decal 8 701 103 074 3 Plastic lower snap-on 8 705 506 451 4 Temperature adjustment knob complete 8 702 000 219 5 Temperature adjustment knob 8 702 000 111 6 Exhaust fan assembly 8 707 204 023 7 Draft d...

19 Fig. 18 - INTERIOR COMPONENTS DIAGRAM AND PARTS LIST

Replacement Parts available from North American Distributor CONTROLLED ENERGY CORP. 340 Mad River Park Waitsfield, Vermont 05673 Phone 800-642-3111 Fax (802) 496-6924 www.controlledenergy.com [email protected] VULCANO Termodomésticos S.A. Estrada de Cacia 3801 - 856 Aveiro - PORTUGAL...