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Bosch WR430-7K User Manual

Bosch WR430-7K
48 pages
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6 720 606 599 CA (03.11) AL
Model
WR430-7K
installation
operation
maintenance
The Bosch instantaneous water heater is a high efficiency,
space saving answer to your water heating needs. All Bosch
instantaneous water heaters heat water only as required;
no energy is lost maintaining a large volume of water at
elevated temperatures as in tank-type storage water heaters.
Suitable for heating potable water only. Not approved for
space heating purposes.
POWER VENTED - ELECTRONIC IGNITION
ASTRAVAN DISTRIBUTORS, LTD.
123 Charles Street
North Vancouver, B.C. V7H 1S1
Phone Canada: (604) 929-5488
Phone USA: (206) 860-8448
Web Site: www astravan.com
Note: In case of problems please contact your salesman or installer
NOTICE TO INSTALLER: Please leave this
manual with the owner or affix adjacent to
appliance.
Instantaneous gas water heater
WARNING: If the information in this
manual is not followed exactly, a fire or
explosion may result causing property
damge, personal injury or death.
- Do not store or use gasoline or other
flammable vapors and liquids in the vicinity of
this or any other applicance
- 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.
READ INSTRUCTIONS CAREFULLY BEFORE INSTALLING
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Bosch WR430-7K Specifications

General IconGeneral
Gas TypeNatural Gas
Flow Rate7.0 l/min
MaterialCopper
ThermostatElectronic
Safety FeaturesFlame failure device, overheat protection
TypeGas Instantaneous Water Heater
Power ConsumptionNot applicable (Gas operated)

Summary

Installation Instructions

Air Requirements for Combustion

Details necessary combustion and ventilation air for safe operation and preventing sooting.

Bosch Power Venting System

Vent Terminal Installation

Vent Installation Procedures

Operation and Draft Checking

Maintenance of Power Venting System

Gas Connections and Pressure Regulation

Operating Instructions

Lighting and Operating Procedure

Step-by-step guide for safely lighting and operating the water heater, including safety precautions.

Pressure Regulation Settings

Temperature Regulation

Maintenance and Service

Flue Gas Safety Device Function

Explains the role of the flue gas safety device and its automatic shut-off function.

Trouble Shooting Guide

Pilot Sparks Continuously

Pilot Lights But Burners Do Not Ignite

Main Burners Go Out During Use

Interior Components Diagram and Parts List

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