Installation Guide

4
BEFORE INSTALLATION
1. Be sure installation meets all local plumbing codes.
2. If you are not thoroughly familiar with plumbing and safety
practices, consult your local store for further information.
3. The water heater temperature-pressure relief valve must be
checked for proper operation and replaced if found to be faulty.
When checking the temperature-pressure relief valve
operations, make sure that (1) no one is in front of or
around the outlet of the temperature-pressure relief valve
discharge line, and (2) the water manually discharged
will not cause any property damage or bodily injury. The
water may be extremely hot.
IMPORTANT INSTRUCTIONS BEFORE INSTALLATION
If after manually operating the valve, it fails to completely
reset and continues to release water, immediately close
the cold water inlet to the water heater, follow draining
instructions and replace the temperature-pressure relief
valve with a new one.
Also read and follow additional information found in
the water heater manual concerning the temperature-
pressure relief valve.
4. Read this owner’s manual and the installation rules carefully.
If you do not follow the safety rules, the expansion tank will not
operate properly. It could cause DEATH, SERIOUS BODILY
INJURY AND/OR PROPERTY DAMAGE.
5. If incoming water pressure to the home exceeds 80 psi, a
pressure reducing valve will be required. Recommended inlet
water pressure is 60 psi or less.
6. In order to determine incoming water pressure and for proper
adjustment of the pressure reducing valve, a pressure gauge
must be installed between the pressure reducing valve and
expansion tank.
7. The complete piping system, including expansion tank and
pressure reducing valve, MUST be protected against below
freezing temperatures. Failure to do so could cause severe
water damage.
8. To safeguard against a possible dangerous malfunction of
the expansion tank, review the installation instructions before
putting the water supply system back into operation.
TANK SPECIFICATIONS
Model 2 Gallon
5 Gallon
CAPACITY IN GALLONS 2.1 4.5
DIMENSIONS “A” 11.58” 14.42”
DIMENSIONS “C” 8 11
DISCHARGE CONNECTION “E” 3/4” NPT 3/4” NPT
WEIGHT 6 LBS. 10.5 LBS.
Figure 2. Expansion Tank Dimensions
EXPANSION TANK SIZING CHART
Assumed 140° Max. Temp and 150 PSI Max. Pressure.