Bosch Appliances GWH 425 PN/HN4GWH 4254 Water Heater User Manual


 
Applications manual | 11.2007Bosch Water Heating
Applications manual
| 3
1 Introduction
The Bosch Applications Manual is intended to present some of the
most common applications of the Bosch line of tankless and point of
use water heaters. Application drawings are shown with both piping
and corresponding electrical schematics where applicable. Auxiliary
equipment depicted does not necessarily represent any one manu-
facturer or speci c model number. There are a wide variety of
techniques, practices and piping strategies possible when installing
water heating appliances. It is the responsibility of the installing
contractor to determine the most suitable arrangement for the
application.
Although this manual covers many common applications for our
products, system possibilities are virtually endless. Should you
encounter an application that is not covered in this manual or have
any questions regarding any of its content, we encourage you to
contact your local sales representative or us directly at Bosch Water
Heating.
This is not a substitute for any of the product’s installation manuals.
All speci cations subject to change.
Installation must conform with local codes or, in the absence of
local codes, the National Fuel Gas Code ANSI Z 223.1/NFPA 54.
In Canada: Installation must conform with CGA B149.(1,2) INSTAL-
LATION CODES and/or local installation codes.
2 Bosch Water Heating Models
This section describes the water heaters available from Bosch Water
Heating. The information given in each section provides a general
overview to the speci cations of that particular model. More detai-
led information is contained in the installation manuals. Download
these manuals at www.BoschPro.com.