Bosch 125X NG - Manual
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Table of Contents:
- Page 2 – FEATURES; AquaStar 125X LP and 125X NG Specifications; UNPACKING THE AQUASTAR HEATER
- Page 3 – * Some local codes require 18” in garage installations
- Page 4 – WARNING: The water in this water heater is cold
- Page 5 – b) In unconfined spaces in buildings of conventional frame,; - 4000 Btu/hr if all air is taken from the outside by direct
- Page 6 – VENTING
- Page 7 – WARNING: The heater must be disconnected from; Altitude; Above 4.500 ft consult your local gas provider.; MAXIMUM INLET GAS FLOW PRESSURE SETTING
- Page 8 – Connecting the pressure relief valve (PRV); THREADED ASSEMBLY; HW; Fig. 5 - W a t e r v a l v e a n d w a t e r; WATER CONNECTIONS
- Page 9 – LIGHTING AND OPERATING INSTRUCTIONS; This water heater is equipped with a safety pilot burner; and an automatic ignition control system.; If the red LED indicator light (visible through the; SETTING THE WATER TEMPERATURE
- Page 10 – MAINTENANCE AND SERVICE; fresh and; Fig. 11 - Pilot burner with pilot orifice; TROUBLE SHOOTING
- Page 11 – NO SPARK AT THE PILOT; Adjusting screw
- Page 13 – Diagram of AquaStar 125 X; Cold water is mixing with the hot water between
- Page 14 – - INTERIOR COMPONENTS DIAGRAM AND PARTS LIST
- Page 15 – INTERIOR COMPONENTS DIAGRAM
- Page 16 – CONTROLLED ENERGY CORP.; Estrada de Cacia; INS T A L L A T IO N C HE C K L IS T; N a tu r a l G a s; N o m in al I ro n P ip e S ize *; L iq u id P r o p a n e; S e m i-rig id T u b in g; M A X IM U M L E N G TH; M in im u m Ve n t S iz e * a n d He ig h t; M i ni m um D i a m e te r; W a te r P r e s s u r e; © 2001 Controlled Energy Corporation, Waitsfield, VT
WA R N I N G
: I m p r o p e r i n s ta l l a t i o n ,
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.
Upon completion of the installation, these instructions
should be handed to the user of the appliance for
future reference.
FEATURING: Automatic Variable Power Modulating Gas
Valve and Electronic Ignition
I N S TA L L AT I O N A N D O P E R AT I N G I N S T R U C T I O N S F O R A U TO M AT I C
INSTANTANEOUS TYPE WATER HEATERS FOR USE WITH NATURAL AND
LIQUEFIED PETROLEUM GAS
MODEL 125X LP and 125X NG (Flow Modulated with Electronic Ignition)
Suitable for heating potable water only
Not approved for space heating purposes
Intended for variable flow applications with steady cold water inlet temperatures
WARNING
If the information in this manual is not followed
exactly, a fire or explosion 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’s
phone. Follow the gas supplier’s instructions.
- If you cannot reach your gas supplier, call the fire
department.
- Installation and service must be performed by a
qualified installer, service agency or the gas supplier.
Specifications .................................................... Page 2
Rules for safe operation .................................... Page 4
Locating the Heater ............................................ Page 4
Combustion Air Requirements ............................ Page 5
Mounting the Heater ........................................... Page 5
Venting the Heater ............................................. Page 6
Gas Connections ............................................... Page 7
Water Connections ............................................ Page 8
Safety before turning on the heater ..................... Page 8
Operating instructions ........................................ Page 9
Setting water temperature .................................. Page 9
Maintenance & Service ..................................... Page 10
Trouble Shooting .............................................. Page 10
Microswitch Adjustment .................................... Page 11
Electrical Diagram ............................................ Page 12
Diagram of AquaStar ......................................... Page 13
Interior components diagram ............................ Page 14
Parts List ......................................................... Page 15
TABLE OF CONTENTS
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Summary
2 Principle of Operation:When a hot water faucet is opened, the water flow throughthe heater causes the gas valve to open. At the sametime a microswitch is activated which sends a spark to thepilot. The flame sensor confirms the pilot has been lightedand allows the first two burners to come on. The ...
3 MINIMUM INSTALLATION CLEARANCES FROM COMBUSTIBLE AND NONCOMBUSTIBLE MATERIALS FOR ALCOVE OR CLOSET INSTALLATIONS FRONT VIEW SIDE VIEW AQUASTAR MODEL 125X D870_072 M O DE L 125 X TO P (A ) 12" F RO NT (B ) 4" B A CK 0" S IDE S 4" F LO O R (C) 12" * F LUE DIA M E TE R 5" * So...
4 GENERAL RULES TO FOLLOWFOR SAFE OPERATION 1. You should follow these instructions when you installyour heater. In the United States: The installation mustconform 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 con...
