Aquastar 125b Ng Manual
. INSTALLATION AND OPERATING INSTRUCTIONS FOR AUTOMATIC INSTANTANEOUS TYPE WATER HEATERS FOR USE WITH NATURAL AND LIQUEFIED PETROLEUM GAS MODEL 125B LPL and 125B NGL (Non-Modulated) Suitable for heating potable water Certified for space heating in combination with potable water only Not certified for space heating only. This well engineered, gas water heater has been AquaStar 125B LPL and 125B NGL Specifications specially designed to operate as a circulating water heater. Gas Input max.: 117,000 Btu/hr min.: 60,000 Btu/hr FEATURES Water Connection 1/2” Thread fitting - High Quality Materials for Long Working Life. H x W x D 29 3/4”. FRONT VIEW SIDE VIEW MINIMUM INSTALLATION CLEARANCES FROM COMBUSTIBLE AND NON COMBUSTIBLE MATERIALS FOR ALCOVE OR CLOSET INSTALLATIONS MODEL 125BL TOP (A) 12' FRONT (B) 4' BACK 0' SIDES 4' FLOOR (C) 12'. FLUE DIAMETER 5'.
Some local codes require 18” in garage installations AQUASTAR MODEL 125BL. If you are using the AquaStar for combined space heating and potable water heating (see schematic diagram below), all piping and other components connected to the system must be suitable for potable water, (b) toxic chemicals such as those commonly used for boiler treatment to prevent corrosion and freezing must not be introduced into the system, and (c) if the space heating requires water temperatures higher than those required for do- mestic, potable water, a mixing valve or other similar device must be provided to reduce. Correct gas pressure is critical for the optimum WARNING: The water in this water heater is cold operation of this heater (see specifications on page 2). Gas and always remains cold except for the times that hot piping must be sized to provide the required pressure at water is being used DO NOT INSTALL IN AN AREA the maximum output of the heater, while all the other gas WHERE IT COULD FREEZE. dilution of flue gases. Which, if mounted directly to a brittle, friable board, such Appliances located in confined spaces:) The confined space as plasterboard, can cause failure of mounting.
Must be provided with two permanent openings, one In earthquake-prone zones, CEC recommends that commencing within 12 inches of the top and one installers use a large washer and lag screw through the commencing within 12 inches of the bottom of the. Code if vent will have elbows or share venting with another appliance. 5” X 6” ADAPTOR The vent connector should have as much vertical rise USED ON HIGH ALTITUDE as possible (minimum 12”) before any horizontal run. Optional powervent available in order to sidewall vent. Contact your local dealer.
NOTE: The gas pressures specified below refer to NOTE: Do not apply soap solution to pilot filter screen or pressures taken at the test pressure nipple on the gas pilot orifice area. If you have a leak, shut off the gas. After inlet pipe just above the regulator (See Fig 4).
If control button(s) are jammed, close the gas supply and Connecting the pressure relief valve (PRV) call a qualified service technician. Attempted forceful repair A listed pressure relief valve supplied with the heater must may result in a fire or explosion. Be installed at the time of installation. toward you and lift up and out.
THE FOLLOWING To access the pilot orifice, remove 2 screws holding pilot OPERATIONS SHOULD BE PERFORMED BY A assembly in place. Then loosen compression fittings to QUALIFIED SERVICE PERSON: expose pilot orifice. Vent System: Should be checked annually. Clean and repair as needed. Gas regulator may be shut or damaged. Tighten the thermocouple nut snugly but not too tight. In-line AquaStar gas regulator jammed (usually on 4.
Bosch Aquastar 125b Ng Natural Gas Tankless Water Heater Manual Bosch 125 X Gas Tankless Water Heaters Repair Parts. Bosch Aquastar 125X Pilot Assembly. Bosch Aquastar 125b Ng Natural Gas Tankless Water Heater Manual Bosch 125 X Gas Tankless Water Heaters Repair Parts. Bosch Aquastar 125X Pilot Assembly.
Poor circuit connections at the ECO. (Energy Cut- LP gas) Off overheat protection) Replace or unjam the regulator. Note: The regulator Oxidation or looseness of the ECO terminal connections furnished with the heater is designed for low gas pressure.
system preventing the pressure drop in the Aquastar (i.e. Temperature relay for the primary circulator pump is possibly cold water is entering the water heater from both sides and set too high. See all 201 rows on serialnumber.in. The burners will not come on).
Bosch Aquastar 125b Ng Service Manual
To confirm there is no crossover in the plumbing, shut off WATER IS NOT HOT ENOUGH the cold water supply to the AquaStar. 10 - Diagram of AquaStar 125 BL Gas control slide Heat exchanger Piezo igniter Pilot assembly Location of pressure tap Burner manifold gas nipple pressure test nipple Water valve Pilot gas tubing Gas inlet gas pressure Main gas burner test nipple Gas valve. 11 - INTERIOR COMPONENTS DIAGRAM AND PARTS LIST. 11 INTERIOR COMPONENTS DIAGRAM AND PARTS LIST 125BL Cover ¤ 8 705 421 031 Cap cover ¤ 8 703 304 011 Water connection gasket ¤ 8 710 103 043 Draft divertor ¤ 8 705 505 354 Heat exchanger ¤ 8 705 406 235 Hot water pipe ¤. INSTALLATION CHECKLIST GAS LINE SIZE Natural Gas Nominal Iron Pipe Size.
Bosch Aquastar 125b Troubleshooting
1/2' 3/4' 1' 150' MAXIMUM LENGTH Liquid Propane Semi-rigid Tubing 1/2' 5/8' 3/4' 7/8' 150' MAXIMUM LENGTH RECOMMENDED. Flex tubing greatly reduces capacity and, therefore, is not recommended. Minimum Vent Size. and Height Minimum Diameter Minimum Height.