Kenmore Economizer 6 Owners Manual

11
Chemical vapor corrosion of the flue, blower assembly and vent system
may occur if air for combustion contains certain chemical vapors.
Spray can propellants, cleaning solvents, refrigerator and air conditioner
refrigerants, swimming pool chemicals, calcium and sodium chloride,
waxes, bleach and process chemicals are typical compounds which
are potentially corrosive.
A. ALL AIR FROM INSIDE BUILDINGS: (See Figure 10 and 11)
The confined space shall be provided with two permanent openings
communicating...

12
Toxic chemicals, such as those used for boiler treatment shall not be
introduced into this system.
When the system requires water at temperatures higher than required
for domestic water purposes, a tempering valve must be installed.  Please
refer to Figure 15 for suggested piping arrangement.
Water supply systems may, because of such events as high line
pressure, frequent cut-offs, the effects of water hammer among others,
have installed devices such as pressure reducing valves, check valves,
back...

13
INSTALLATION COMPLETED USING INSTALLATION KIT
FIGURE 16.
T & P Valve and Pipe Insulation (if supplied)
Remove insulation for T & P valve and pipe connections from carton.
FIGURE 17.
Fit pipe insulation over the incoming cold water line and the hot water
line. Make sure that the insulation is against the top cover of the heater.
Fit T & P valve insulation over valve. Make sure that the insulation does
not interfere with the lever of the T & P valve.
Secure all insulation using tape....

14
The Discharge Pipe:
• Shall not be smaller in size than the outlet pipe size of the valve, or
have any reducing couplings or other restrictions.
• Shall not be plugged or blocked.
• Shall be of material listed for hot water distribution.
• Shall be installed so as to allow complete drainage of both the
temperature-pressure relief valve, and the discharge pipe.
• Shall terminate at an adequate drain.
• Shall not have any valve between the relief valve and tank.
The temperature-pressure relief valve...

15
The appliance and its gas connection must be leak tested before placing
the appliance in operation.
The appliance and its individual Shut-off valve shall be disconnected
from the gas supply piping system during any pressure testing of that
system at test pressures in excess of 1/2 pound per square inch
(3.5 kPa).  It shall be isolated from the gas supply piping system by
closing its individual manual Shut-off valve during any pressure testing
of the gas supply piping system at test pressures equal to...

16
4. Make sure that the plastic tubing is still attached from the air pressure
switch to the port on the blower housing. Make sure the plastic
tubing is not folded anywhere between the pressure switch and
the blower housing.
5. Make sure the ON/OFF switch is in the OFF position and that the
outer harness is connected from the blower control box to the
connector on the bottom side of the gas valve.
6. If the outer harness is not factory installed, make sure the ON/OFF switch
is in the OFF position and...

17
VENT CONNECTIONS TO BLOWER ASSEMBLY
Figure 21 shows the optimal placement of the 2 to 3 or 3 to 4 reducer;
however, the vent can be reduced at any point in the vent system as long
as the maximum vent length is not exceeded.
FIGURE 21.
VENTING AND INSTALLATION
Plan the layout of the vent system from the vent termination to the water
heater considering all of the 90° and 45° elbows plus the number of feet
of pipe that would be needed to install the total vent system. The water
heater must be vented to...

18
VENTING
The vent system must terminate so that proper clearances are
maintained as cited in local codes or the current edition of the NationalFuel Gas Code, ANSI Z223.1/NFPA 54, 7.3.4e and 7.8a,b, as follows:
1. The exit terminals of a mechanical vent system shall be not less
than 7 feet (2.13 m) above grade when located adjacent to public
walkways, see Figure 23.
2. A venting system shall terminate at least 3 feet (91 cm) above any
forced air inlet located within 10 feet (3.1 m), see Figure 23.
3....

19
FIGURE 23.
This unit can vent through 2, 3 or 4 nonmetallic pipe and fittings.
The vent pipe installation can be started from either the blower discharge
or the termination wall.  Keep in mind the total vent system (pipe and
elbows) when installing the vent system, see VENTING AND
INSTALLATION AND MAXIMUM VENT LENGTHS, page 17.
 
FIGURE 24.
The vent terminal should be kept as close as possible to the outside
wall, but you need to allow at least 1.5 (3.8 cm) of pipe past the wall,
for the wall flange...

20
VENT PIPE PREPARATION
1.INITIAL PREPARATION
A. Make sure the solvent cement you are planning to use is
designed for the specific application you are attempting.
B. Know the physical and chemical characteristics and limitations
of the PVC and CPVC piping materials that you are about to use.
C. Know the reputation of your manufacturer and their products.
D. Know your own qualifications or those of your contractor.
The solvent welding technique of joining PVC and CPVC pipe
is a specialized skill just as...