Water System Piping; Piping Installation - Kenmore 153.332620 Use & Care Manual

Minimum
Support Strap
Maintain
Clearance*
Venting Gas Vent System With Type B Double Wall Vent Pipe.
Maintain Manufacturer's
Specified Minimum Clearance
Support Strap
Maintain
Clearance*
Venting Through Chimney With Type B Double Wall Vent Pipe.
*
Maintain vent pipe clearance requirements to local, state and/or the
"National Fuel Gas Code", ANSI Z223.1(NFPA 54)-current edition.
**
NFPA 211, Standard for Chimneys, Fireplaces, Vents, and
Solid Fuel-Burning Appliances states that these chimneys are
intended to be installed in accordance with the installation
instructions provided with each chimney support assembly.
Minimum air space clearance to combustible materials should be
maintained as marked on the chimney sections.
2 FT. Minimum Above
Any Object Within
10 FT. Horizontally
3 FT.
Type B Double
Wall Vent Pipe
**Maintain
Vent
Specified
Connector
Clearance
Slope Up
1/4 Inch
Per Foot
Minimum
FIGURE 21.
Listed Vent Cap
Seal
Vent Connector
Vent
Connector
Slope Up
Unused Chimney
1/4 Inch
Flue Or Masonry
Per Foot
Enclosure
Minimum
FIGURE 22.

Piping Installation

Piping, fittings, and valves should be installed according to the
installation drawing (Figure 23). If the indoor installation area
is subject to freezing temperatures, the water piping must be
protected by insulation.
The water supply pressure should not exceed 80 psi. If this
occurs, a pressure reducing valve with a bypass should be
installed in the cold water inlet line. This should be placed on the
supply to the entire house in order to maintain equal hot and cold
water pressures.
IMPORTANT: Heat cannot be applied to the water fittings on
the heater as they may contain nonmetallic parts. If solder
connections are used, solder the pipe to the adapter before
attaching the adapter to the hot and cold water fittings.
IMPORTANT: Always use a good grade of joint compound and be
certain that all fittings are drawn up tight.
1. Install the water piping and fittings as shown in Figure 23.
Connect the cold water supply (3/4" NPT) to the cold water
inlet fitting. Connect the hot water piping (3/4" NPT) to the
hot water outlet fitting.
IMPORTANT: Some models may contain energy saving heat
**Maintain
traps to prevent the circulation of hot water within the pipes. Do
Specified
Clearance
not remove the inserts within the heat traps.
2. The installation of unions in both the hot and cold water
supply lines is recommended for ease of removing the water
heater for service or replacement.
3. The manufacturer of this water heater recommends installing
a mixing valve or an anti-scald device in the domestic hot
water line as shown in Figure 24. These valves reduce the
point-of-use temperature of the water by mixing cold and hot
water and are readily available for use.
4. If installing the water heater in a closed water system, install
an expansion tank in the cold water line as specified under
Closed System/Thermal Expansion.
5. Install a shut-off valve in the cold water inlet line. It should be
located close to the water heater and be easily accessible.
Know the location of this valve and how to shut off the water
to the heater.
6. A temperature and pressure relief valve must be installed
in the opening marked "Temperature and Pressure (T & P)
Relief Valve" on the water heater. A discharge line must be
added to the opening of the T&P Relief Valve. Follow the
instructions under Temperature and Pressure Relief Valve.
7. After piping has been properly connected to the water
heater, remove the aerator at the nearest hot water faucet.
Open the hot water faucet and allow the tank to completely
fill with water. To purge the lines of any excess air, keep
the hot water faucet open for 3 minutes after a constant
flow of water is obtained. Close the faucet and check all
connections for leaks.
21

WATER SYSTEM PIPING