Installation / Operation Instruction Manual

ManualsBrandsBradford White ManualsCombination - Water & Space Heating1. Combi1 ® Atmospheric Vent (C-SW2) Defender And Non-Defender Safety System - Canada

Venting continued-

Venting System Condensation

Condensate formation does not occur in all installations of power vented water

heaters but should be protected against on installations where condensation

can form in the venting system.

Formation of condensation in the venting system of Power Vented water

heaters is dependent upon installation conditions including, but not limited to:

• ambient temperature and humidity of installation location;

• ambient temperature and humidity of venting space;

• vent distance and slope;

• and product usage.

In order to effectively control condensate from adversely affecting the

mechanical components of the water heater several methods may be

employed:

1. For horizontal installations the vent pipe can be installed with a downward

slope (not less than 1/8" (3 cm)) and away from the blower.

2. In order to prevent condensate from draining back into the blower (vertical

or horizontal runs), an optional condensate kit is available as a service

part (Condensate kit, p/n 239-45875-00). A factory supplied exhaust

adapter with drain outlet mounts directly to the blower outlet and is

secured with two hose clamps, one to the blower and the other to the vent

pipe. Tubing is provided to drain any accumulated condensate away from

the water heater and to a suitable drain. The kit comes complete with

instructions for proper installation.

Approved Venting Materials

For installations in the US only

• PVC DWV (ASTM D-2665)

• PVC Sch. 40, 80, 120 (ASTM-D1785)

• CPVC Sch. 40, 80 (ASTM-F441)

• CPVC (ASTM D2846)

• ABS Sch. 40 DWV (ASTM D2661)

For installations in CANADA

• ULC S636 approved PVC for flue

gas venting rated Class II, 65°C

• ULC S636 approved CPVC for flue

gas venting rated Class II, 65°C

Approved Primers and Cements

For installations in the US only

• PVC and CPVC Primer (ASTM-F656)

• PVC Cement (ASTM D-2564)

• CPVC Cement (ASTM F493)

• ABS Primer and Cement (ASTM D-

2235)

For installations in CANADA

• ULC S636 approved Primer and

Cement for flue gas venting rated

Class II, 65°C

NOTICE

Use of cellular core PVC (ASTM F891), cellular core CPVC, or Radel

(polyphenosulfone) in non-metallic venting systems is prohibited, and

covering non-metallic venting with thermal insulation is prohibited.