Venting; General Venting Information - State Water Heaters 60120-100250 Service Handbook

VENTING

This section of the Service Handbook is not a complete venting installation instruction. Refer to the Instruction
Manual that came with the water heater; ensure the venting has been installed per all Instruction Manual
requirements. Costs to correct installation errors are not covered under the limited warranty.

GENERAL VENTING INFORMATION

The water heaters covered in this Service Handbook are operationally equivalent to Category IV appliances
and may be installed in either a Power Vent or Direct Vent configuration.
Category IV Appliance
Category IV appliances operate with a positive vent (exhaust) static pressure and with vent gas temperatures
low enough to produce condensate in the vent piping.
Power Vent Configuration
Power Vent configurations derive all combustion air from the room where they are installed and discharge all
flue gases to the outdoor atmosphere through a sealed vent (exhaust) pipe. Power vent configurations have
one vent pipe connected to the water heater which can be terminated in a vertical or horizontal arrangement.
Direct Vent Configuration
Direct Vent configurations derive all combustion air directly from the outdoor atmosphere through a sealed
intake air pipe and discharge all flue gases to the outdoor atmosphere through a sealed vent (exhaust) pipe.
Direct Vent configurations have two pipes connected to the water heater, one vent pipe and one intake air
pipe. Direct Vent configurations can also be terminated in a vertical or horizontal arrangement.
PIPE SIZE REQUIREMENTS
Ensure the correct size pipe has been used for the length of intake air and/or vent piping installed. Refer to
the Instruction Manual supplied with the water heater for the correct size and length of vent piping.
Servicing should only be performed by a Qualified Service Technician 33