Bosch WR 250 -8 K..G Series User Manual

with Hydropower Ignition
Gas Instantaneous Water Heaters
WR 250 -8 K..G..
WR 325 -8 K..G..
WR 400 -8 K..G..
Installation and Operating Instructions
-
THE APPLIANCE MAY ONLY BE INSTALLED BY AN AUTHORISED PERSON.
- Perfect functioning of the appliance is guaranteed only if this specification and the operating instructions are followed.
- The customer shall be provided with these installation instructions.
- The fitter shall explain the function and operation of the appliance to the customer.
- Servicing may only be carried out by authorised personnel.
- Installation in a marine environment should be avoided.
- Install in accordance with AS5601, AS/NZS3500.4.2, NZS5261 and all local building, water and gas fitting regulations.
- Not suitable for pool or SPA application.
- Failure to install the appliance in accordance with these installation instructions may void warranty.
6 720 606 692 (02.05) JS
Approved for indoor installation only.
For your safety
If you smell gas:
1. Close gas isolating cock
2. Open windows
3. Do not actuate any electrical switches
4. Extinguish naked flames
5. Contact gas authorities immediately
Do not store or use flammable materials or liquids
near the appliance.
Do not place articles on or against this appliance.

Bosch WR 250 -8 K..G Series Specifications

General

Heating element material	Copper
Thermostat	Yes
Overheat protection	Yes
Gas Type	Natural gas
Protection class	IPX4

Summary

Description of Appliances

Connecting Measurements

Constructional Details

Wiring Diagram

Shows the electrical connections and components of the appliance, including ignition and control elements.

Technical Data

Installation

Location

Water Supply

Gas connection

Flue

Commissioning

Procedures for initial start-up, including purging air from gas lines for pilot burner ignition.

Servicing

Gas adjustments

Procedures for adjusting gas burner pressure for maximum and minimum output.

Conversion to Other Gases

Steps for converting the appliance to different gas types using manufacturer-supplied kits.

Maintenance

Fault Finding

A table listing common problems, their causes, and suggested solutions for troubleshooting.

Operating Guide - Quick Reference