Bosch WR430-7K - Manuel (Page 6)

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Bosch POWER VENTING SYSTEM
INTRODUCTION
Bosch power venting models are designed to overcome difficult venting problems which cannot be performed
with atmospheric venting: to meet your hot water demand load very efficiently, with an environmentally friendly
appliance which conserves energy and significantly reduces combustion emissions to atmosphere.
GENERAL INFORMATION
This Power Vent System must be installed by a *qualified installer in accordance with all applicable local gas
and electrical codes and in the absence of:
• With the current CAN1/CGA B149 installation code for gas burning appliances and the Canadian Electrical
code C22.1-M90 part 1 (for Canada).
• With the National Fuel Code and the ANSI Z223.1-LATEST and National Electrical Code ANSI/NFPA No
70-LATEST electrical code (for USA).
The Bosch warranty will be voided by, and Bosch disclaims any responsibility for the following actions:
• Use of any unapproved venting component part not manufactured or approved by Bosch in combination
with the Bosch WR430-7K unit.
• The Bosch WR430-7K must not be modified in any way when installing the Power Vent System. All
systems must be installed as per Bosch Installation Guide.
• Installation other than instructed in this manual.
CAUTION:
Bosch Power Vent System must be installed by a qualified agency in accordance with these instructions.
If improperly installed a hazardous condition such as an explosion or Carbon Monoxide poisoning
could result. Bosch will not be responsible for any and all improperly installed appliances.
*QUALIFIED INSTALLING AGENCY: Any individual, firm, corporation or company which either in person or
through a representative is engaged in and is responsible for the installation and operation of gas appliances and
draft control devices, who is experienced in such work, familiar with all precautions required, and has complied
with all the requirements of the authority having jurisdiction.
GENERAL VENTING INFORMATION
SIZING & DISTANCES:
Plan the vent system so that code clearances and manufacturer’s distances are maintained from combustible
materials, plumbing and wiring.
This unit may be directly connected to approved vent termination with a 90° elbow or located with a maximum
lineal length of 15 ft. (4.6m) including two 90° elbows from termination. All vent pipe and fittings must only be
4” (10.2cm) in diameter.