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GENERAL RULES TO FOLLOW
FOR SAFE OPERATION

1.

You should follow these instructions when you install your

heater.  In the United States: The installation must conform
with  local  codes  or,  in  the  absence  of  local  codes,  the
National Fuel Gas Code ANSI Z223.1/NFPA 54.
In  Canada:  The  Installation  should  conform  with  CGA
B149.(1,2) INSTALLATION CODES and /or local installation
codes.

2.

Carefully  plan  where  you  install  the  heater.  Correct

combustion  air  supply  and  flue  pipe  installation  are  very
important. If not installed correctly, fatal accidents can be
caused by lack of air, carbon monoxide poisoning or fire.

3.

The place where you install the heater must have enough

ventilation. The National Fire Codes do not allow  gas fired
water  heater  installation  in  bathrooms,  bedrooms  or  any
occupied rooms normally kept closed. See the section below
on locating the heater.

4.

You must vent your heater. See section on Venting, Page

6.

5.

The appliance must be disconnected from the gas supply

piping system during any pressure testing at pressures in
excess of 1/2 Psig (3.5 kPa).
The appliance must be isolated from the gas supply piping
system by closing its individual manual shutoff valve during
any pressure testing of the gas supply piping system at test
pressures  equal  to  or  more  than  1/2  Psig  (3.5Kpa).    The
appliance and its gas connection must be leak tested before
placing the appliance in operation.

6.

Keep water heater area clear and free from combustibles

and  flammable  liquids.  Do  not  locate  the  heater  over  any
material which might burn.

7. Correct  gas  pressure

  is  critical  for  the  optimum

operation of this heater (see specifications on page 2). Gas
piping must be sized to provide the required pressure at the
maximum  output  of  the  heater,  while  all  the  other  gas
appliances  are  in  operation.  Check  with  your  local  gas
supplier, and see the section on connecting the gas supply.

8.

Should overheating occur or the gas supply fail to shut

off, turn off the gas supply at the manual gas shut off valve
on the gas line.

9.

Do not use this appliance if any part has been underwater.

Immediately  call  a  qualified  service  technician  to  inspect
the appliance and to replace any part of the control system
and any gas control which has been 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.
The heater may still operate even when improperly vented.
It will, however, be less efficient and could eventually damage
the heater. It could even result in human sickness or death
due to oxygen deprivation and carbon monoxide poisoning.
Follow the guidelines below:

1.

Place  your  heater  as  close  to  a  vent  or  chimney  as

possible.

2.

National  building  codes  require  that  you  do  not  install

this appliance in bathrooms, bedrooms, unvented closet or
any occupied rooms normally kept closed.

3.

Simultaneous  operation  of  other  appliances  such  as

exhaust fans, ventilation systems clothes dryers, fireplaces
or wood stoves  could create a vacuum effect in your home
which could cause dangerous combustion by-products to
spill back into your home rather than venting to the outside
through  the  flue.  Confirm  that  your  Aquastar  is  venting
properly when all these other appliances are running. See
section on venting.

Do not obstruct the flow of combustion and ventilation
air to the appliance.

  If installed near a clothes dryer it is

very important that the dryer be properly vented. Failure to
properly vent a dryer could result in a gradual accumulation
of lint on the water heater fin coils and burners, leading to a
dangerous  condition  of  vent  blockage  and  poor  unsafe
combustion.

4.

Your hot water lines should be kept short to save energy.

It is always best to have hot water lines insulated.

5.

This product is neither designed nor approved for outside

installations.  This product is not approved for manufactured
homes (mobile home), recreational vehicles (RV) or boats.
Reference ANSI Z21.10.3.

WARNING:

 

The water in this water heater is cold and

always remains cold except  for the times that hot water is
being used

 

DO NOT INSTALL  IN    AN  AREA WHERE IT

COULD FREEZE.

Drain  the  heater  entirely  if  freezing  temperatures  are
anticipated in area where heater is installed by disconnecting
both the inlet and outlet water connections from the heater
(disconnect  the  outlet  flex  line  from  where  it  connects  to
the copper heat exchanger). Additionally, remove the drain
plug under the water valve. See Fig 1.

Содержание 125B LP

Страница 1: ...may result causing property damage personal 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...

Страница 2: ...of the heater Easy pilot flame lighting with push button piezo ignition BOSCH is constantly improving our products therefore specifications are subject to change without prior notice AquaStar 125B LP and 125B NG Specifications Gas Input max 117 000 Btu hr min 28 000 Btu hr Water Connection 1 2 Thread fitting NPT 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 Water Press...

Страница 3: ...MUM INSTALLATION CLEARANCES FROM COMBUSTIBLE AND NON COMBUSTIBLE MATERIALS FOR ALCOVE OR CLOSET INSTALLATIONS FRONT VIEW SIDE VIEW AQUASTAR MODEL 125B MODEL 125B TOP A 12 FRONT B 4 BACK 0 SIDES 4 FLOOR C 12 VENT DIAMETER 5 ...

Страница 4: ...rt of the control system and any gas control which has been 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 The heater may still operate even when improperly vented It will however be less efficient and could ...

Страница 5: ...r 125B alone b In unconfined spaces in buildings of conventional frame masonry or metal construction infiltration is normally adequate to provide air for combustion ventilation and dilution of flue gasses Appliances located in confined spaces The confined space must be provided with two permanent openings one commencing within 12 inches of the top and one commencing within 12 inches of the bottom ...

Страница 6: ...Particle Tray 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 See figure 3 SCREWS INCANDESCENT PARTICLE TRAY Note Typically the minimum clearence to combustible materials should not be less than 6 for single wall flue pipe Note that this c...

Страница 7: ...orizontal Horizontal sections must slope upwards at least inch for every foot of its horizontal length and be properly supported Keep the horizontal section short and avoid too many elbows The minimum vertical gas vent height allowed is 6 feet horizontal vent connectors and elbows are not to be considered in the total gas vent height All gas vent sections must be secured to each other with sheet m...

Страница 8: ...mney Also an approved thimble or collar must be used when penetrating a masonry chimney A Existing INTERIOR Masonry Chimney The metal gas vent pipe should be permanently mounted inside the masonry chimney Double wall Type B gas vent is recommended The masonry chimney may have to be tile or metal lined before the insertion of the gas vent pipe check local codes for clarification The lining material...

Страница 9: ...heater such as the AquaStar are only on at the time that hot water is actually being used the vent pipe is therefore cold except for the short durations when hot water is being used it is therefore very important that the venting and air supply be adequate to provide a good positive draft as soon as the burners turn on The AquaStar 125B instantaneous water heaters have built in draft diverters and...

Страница 10: ...tions are made check for gas leaks at all joints not just the ones you made Apply some soapy water to all gas fittings and gas valve Soap bubbles are a sign of a leak NOTE Do not apply soap solution to pilot filter screen or pilot orifice area If you have a leak shut off the gas After verifying that required gaskets are in place tighten appropriate fittings to stop leak Turn the gas on and check a...

Страница 11: ... for an ordinary number of fittings GAS LINE SIZING Nominal Iron Length of Black Iron Pipe Feet Pipe Internal Size Diameter inches inches 10 20 30 40 50 60 70 80 90 100 125 150 175 200 1 4 0 364 32 22 18 15 14 12 11 11 10 9 8 8 7 6 3 8 0 493 72 49 40 34 30 27 25 23 22 21 18 17 15 14 1 2 0 622 132 92 73 63 56 50 46 43 40 38 34 31 28 26 3 4 0 824 278 190 152 130 115 105 96 90 84 79 72 64 59 55 1 1 0...

Страница 12: ... The water heater is now ready to operate FOR YOUR SAFETY READ BEFORE LIGHTING THE PILOT Warning If you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or loss of life A This appliance has a piezo igniter for lighting the pilot burner When lighting the pilot follow these instructions exactly B BEFORE LIGHTING smell all around the appl...

Страница 13: ... per minute Given that average incoming water temperatures are 50F in winter months this heater will produce approximately 140F water at these flow rates Turning the dial all the way to the left Fig 9 Water Flow Control Knob counterclockwise will produce a temperature rise of approximately 45F for flow rates between 1 1 and 3 7 gallons per minute When setting the gas control slide to the single fl...

Страница 14: ...me should envelop approximately 10 mm 3 8 of the tip of the thermocouple If it is too small the pilot burner must be cleaned To obtain a spark the position of the Piezo igniter electrode should be approximately 3 mm 1 8 from the pilot burner tip Main Burner Flames The main burner flames should be blue with a more intense blue cone in the center core Yellow flames could be a sign of wrong size gas ...

Страница 15: ... seconds If the flow control knob is turned fully counterclockwise a flow rate of 1 1 gpm is required to activate the burners 4 Cold water inlet filter on heater is dirty Remove filter and clean This screen filter is located at the inlet side of the water valve fig 13 25 Check and clean faucet aerators too PILOT LIGHT WILL NOT LIGHT 1 No gas to the AquaStar A Gas cock on gas line may not be open B...

Страница 16: ...sor tripped due to overheating Re ignite the appliance 10 minutes later If it happens again contact your service person 5 Flue gas safety device tripped Ventilate the room and re ignite the appliance 10 minutes later If it happens again contact your service person WATER IS TOO HOT 1 Temperature Selection too high Position the gas control slide to the single flame setting to reduce the burner outpu...

Страница 17: ... heater can produce temperatures that may be found to be too hot A temperature balance shower valve can automatically mix in cold water to reduce such hot water temperature in the event of any temperature instability with the use of a temperature balance shower valve refer to shower valve manufactures instructions for internal adjustment setting Adjustments should be made to the hottest setting in...

Страница 18: ...18 6 720 607 030 ...

Страница 19: ...ld gas pressure test nipple 4 Main gas burner 5 Pilot gas tubing 6 Gas valve 7 Pressure tap screw location 8 Gas control slide 9 Piezo igniter 10 Water valve 11 Temperature adjustment selector 12 Gas inlet gas pressure test nipple 13 Flexible hot outlet 5 11 1 4 9 10 3 12 2 6 7 8 13 6720606800 07 1AL ...

Страница 20: ...20 6 720 607 030 Fig 13 INTERIOR COMPONENTS DIAGRAM AND PARTS LIST ...

Страница 21: ...173 LP 14 Pilot tube 8 700 707 320 15 Burner assembly washer 8 710 103 060 16 Throttle disc 8 700 100 174 LP 17 Gas valve 8 707 021 090 NG 17 Gas valve 8 707 021 091 LP 18 Gas supply pipe 8 700 705 552 19 Electromagnet 8 707 201 012 20 Thermocouple Flue Gas Sensor 8 707 206 074 21 Water valve 8 707 002 649 22 Water valve cover 8 705 500 101 23 Pushrod 8 700 306 114 24 Diaphragm 8 700 503 053 25 Wa...

Страница 22: ...her parts If any other part fails within two 2 years after original installation and operation CEC will furnish a replacement part free of charge Shipping costs In addition to supplying the replacement part s CEC will provide ground service delivery for these parts Expedited or upgraded shipping will be charged to the customer Service labor costs This warranty does not cover any labor costs associ...

Страница 23: ...23 6 720 607 030 Fig 14 Flow chart of Aquastar 125 B ...

Страница 24: ...E L B A T E C N A N E T N I A M R A E Y Y R E V E S R A E Y 2 Y R E V E S R A E Y 5 3 Y R E V E E V L A V R E T A W E T A C I R B U L E V L A V R E T A W D L I U B E R N E E R C S R E T L I F R E T A W T C E P S N I Y L B M E S S A T O L I P T C E P S N I Y L B M E S S A T N E V T C E P S N I R E N R U B N I A M T C E P S N I VULCANO Termodomésticos S A Estrada de Cacia 3801 856 Aveiro PORTUGAL 20...

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