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Bosch AquaStar 125X LP, Installation And Operating Instructions Manual

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Bosch AquaStar 125X LP Installation And Operating Instructions Manual Download Page 3

3

MINIMUM INSTALLATION CLEARANCES FROM COMBUSTIBLE AND NON
COMBUSTIBLE MATERIALS FOR ALCOVE OR CLOSET INSTALLATIONS

FRONT VIEW

SIDE VIEW

AQUASTAR MODEL 125X

D870_072

MODEL 125 X

TOP (A )

12"

FRONT (B)

4"

BACK

0"

SIDES

4"

FLOOR (C) 

12" *

FLUE DIAME TER

5"

* Some local codes require 18” in garage installations

Summary of Contents for AquaStar 125X LP

Page 1: ...onal injury or death FOR YOUR SAFETY Do not store or use gasoline or other flammable combustible or corrosive vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS 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 inst...

Page 2: ... heating capacity of the heater Electronic Pilot Ignition Safety Flame Sensor at pilot burner not thermocouple On Off Switch to activate system LED indicator flashes before battery needs replacement AquaStar 125X LP and 125X NG Specifications Gas Input max 117 000 Btu hr min 28 000 Btu hr Water Connection 1 2 Thread fitting H x W x D 29 3 4 x 18 1 4 x 8 3 4 Vent 5 Gas Connection 1 2 NPT thread Min...

Page 3: ...STIBLE AND NON COMBUSTIBLE MATERIALS FOR ALCOVE OR CLOSET INSTALLATIONS FRONT VIEW SIDE VIEW AQUASTAR MODEL 125X D870_072 MODEL 125 X TOP A 12 FRONT B 4 BACK 0 SIDES 4 FLOOR C 12 FLUE DIAMETER 5 Some local codes require 18 in garage installations ...

Page 4: ... underwater PROPER LOCATION FOR INSTALLING YOUR HEATER Carefully select the location of your new heater For your safety and for proper heater operation you must provide an abundant supply of combustion air and a proper venting installation Fig 0 Water heater drain plug The heater may still operate even when improperly vented It will however be less efficient and could eventually damage the heater ...

Page 5: ...n the right side panel of the cover Also each burner orifice is stamped with a number 79 for LPG and 120 for Natural Gas This product is not approved for manufactured homes mobile home recreational vehicles RV or boats Reference ANSI Z21 10 3 This product is neither designed or approved for outside installations COMBUSTION AIR REQUIREMENTS The AquaStar water heater holds cold water in its copper h...

Page 6: ...ARNING Failure TO INCREASETHE VENT SIZE TO SIX INCHESAND or assure that the manifold pressure is set to proper value listed for applications at high altitudes will cause unsafe venting asphyxiation and will void CSA Certification Fig 3 Flue Adaptor for High Altitude Canadian Installations 5 X 6 ADAPTOR USED ON HIGH ALTITUDE The incandescent particle tray shipped loose in the carton with the water ...

Page 7: ...f the serving gas supplier WARNING The heater must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 0 5 psig The water heater must be isolated from the gas supply piping system by closing the manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 0 5 psig The...

Page 8: ...d between the PRV and the heater No reducing coupling or other restriction may be installed in the discharge line The discharge line must be installed such that it allows complete drainage of both the PRV and the line THREADEDASSEMBLY SWEATEDASSEMBLY The location of the PRV must be readily accessible for servicing or replacement and be mounted as close to the water heater as possible See Fig 7 To ...

Page 9: ...about 4 seconds 7 The pilot flame will extinguish 10 30 seconds after the burners come on The burners will remain on until the hot water tap is turned off NOTE On a first time initial installation existence of air in the gas supply line and in the water line may cause some ignition delay In that case repeatedly open and close the hot water tap in order to restart the ignition process until all the...

Page 10: ... the center core Yellow flames could be a sign of wrong size gas orifices or dirty burners or a blockage on the heat exchangers fins If some burners have yellow flames while others have good flames it is likely that dust lint or spider webs have partially clogged the burner venturis To clean the burners contact a gas service person Mineral Scale Build up The AquaStars heater when operated at lower...

Page 11: ...Water valve parts may be dirty or components damaged First check that venturi is free of dirt particles Water valve and component parts must be totally free of dirt In hard water areas 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 components ...

Page 12: ...ar 6 Parts in water flow valve are corroded so that the gas passage is not fully opening HOT WATER TEMPERATURE FLUCTUATES UNIT DEACTIVATED 1 Unbalanced pressure in waterlines The added restriction caused by the Aquastar in the hot water system can result in uneven pressures between the cold and the hot In such cases when mixing cold water at the tap the lower hot water pressure may be overpowered ...

Page 13: ...itch 12 Gas inlet gas pressure test nipple 13 LED 2 Cold water is mixing with the hot water between the AquaStar and the outlet See 4 under NO SPARKAT THE PILOT 3 Inlet water pressure is erratic due to inadequate supply water pressure or saturated pressure tank on well system Check the inlet water pressure On a private well raise minimum pressure setting to 30 psi Confirm that the pressure tank is...

Page 14: ...14 Fig 15 INTERIOR COMPONENTS DIAGRAM AND PARTS LIST ...

Page 15: ... 708 504 021 15 Diaphragm switch LPG 8 708 504 049 16 Pilot burner assembly LPG 8 708 105 491 16 Pilot burner assembly NG 8 708 105 337 17 Electrode ignition group 8 718 107 067 18 Injector pilot NG 8 708 200 069 18 Injector pilot LPG 8 708 200 312 19 Pilot gas tube 8 700 707 349 20 Washer 8 700 103 173 21 Electronic control box 8 707 207 011 22 Battery box 8 700 505 062 23 Set of cables complete ...

Page 16: ...rigid Tubing 1 2 5 8 3 4 7 8 MAXIMUM LENGTH NOT RECOMMENDED 20 60 150 Flex tubing greatly reduces capacity and therefore is not recommended Minimum Vent Size and Height Minimum Diameter Minimum Height 5 inches 6 feet NOTE Vent size must not be restricted Installation must comply with national fuel gas code venting requirements for a 117 000 Btu Category I appliance and any applicable local codes W...

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