Introduction; Model Certi Cations - Bosch 520PN Applications Manual

Applications Manual

2 Introduction

This Applications Manual is intended to present some
of the most common applications of the Bosch Therm
tankless water heaters. Application drawings are shown
with both piping and corresponding electrical schematics
where applicable. Auxiliary equipment depicted does not
necessarily represent any one manufacturer 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 best solution for the
application.
NOTICE: All drawings are conceptual in nature
and do not address all design, installation or
safety considerations. Additional safety and/or
auxiliary equipment may be needed. Drawings
are for reference use by of cials, designers and
licensed installers. It is expected that installers
have adequate knowledge of accepted industry
practices for the equipment, procedures, and
applications involved. It is the responsibiltiy of
the installer to ensure that the installation is in
accordance with local building codes.
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 Thermotechnology
Corp.
This manual is not a substitute for any of the appliance
installation manuals. All speci cations are subject to
change.
NOTICE: Installation must conform with local
codes or, in the absence of local codes, the
National Fuel Gas Code ANSI Z223.1/NFPA 54.
In Canada: Installation must conform with CGA
B149.(1,2) INSTALLATION CODES and/or local
installation codes.
Bosch Thermotechnology Corp.
THERM/GREENTHERM Tankless Water Heaters | 5

3 Model Certi cations

The following are certi cation stamps and explanations
that are speci c to one or more Bosch tankless water
heaters. These certi cations bring the appliances in ac-
cordance with the requirements of the National Fuel Gas
Code ANSI Z223.1/NFPA 54.
Energy Star quali ed (models C 1050 ES,
C 950 ES, 940 ES, 940 ESO, 830 ES, 660 EF,
660 EFO).
Certi ed to applicable U.S. standards for
appliances using gas or other petroleum fuel.
Certi ed to applicable Canadian standards for
appliances using gas or other petroleum fuel.
National Sanitation Foundation International
certi ed.
Energy ef ciency certi ed by AHRI -
Air-Conditioning, Heating, and
Refrigeration Institute.
R
Other certi cations:
f
Meets California Energy Commission (CEC) standards.
f
Approved by the Commonwealth of Massachusetts.
f
South Coast Air Quality Management - 2012
For Models 830 ES, 940 ES, 940ESO, C 950 ES, C 1050 ES,
C 1210 ES and C 1210 ESC only
For model C 1210 ESC only.
This model is built in accordance
with the requirements of the ASME
Boiler and Pressure Vessel Code and
received the Certi cate of
Authorization from the National
Board. The heat exchanger has the
NB and the HLW stamps.
.
Data subject to change