Table Des Matières - Utilitech LET2 Mode D'emploi

CAUTION: Improper installation and use may be hazardous and can result in property damage.
Improper installation and/or pressure settings will void warranty. Install in accordance with local
codes. Refer to manual for installation and service.
DANGER: Burn hazard. Hot water discharge. Keep clear of relief valve discharge outlet.
TABLE OF CONTENTS
SAFE INSTALLATION USE AND SERVICE ................................................................................... 2
GENERAL SAFETY ........................................................................................................................ 2
TABLE OF CONTENTS .................................................................................................................. 3
SPECIFICATIONS .......................................................................................................................... 3
IMPORTANT INSTRUCTIONS BEFORE INSTALLATION ............................................................. 4
LOCATING THE NEW EXPANSION TANK .................................................................................... 5
INSTALLING THE EXPANSION TANK ........................................................................................ 6-7
MAINTENANCE .............................................................................................................................. 7
WARRANTY .................................................................................................................................... 8
SPECIFICATIONS
EXPANSION TANKS FOR WATER HEATERS
Many local codes require back flow preventers, check valves or non-reversing meters. Since these
devices seal off the system, an expansion tank is required to prevent the water heater's relief valve from
discharging on every heating cycle. The LET series expansion tanks eliminate this wasteful, costly, and
dangerous practice. The LET tanks are designed to be used for potable water storage at a maximum
pressure of 150 psi. DO NOT USE A STANDARD TANK. Use the sizing chart to determine the correct
size expansion tank for your application.
PURPOSE OF EXPANSION TANKS
When water is heated it expands. Provision must be made for this expansion in a closed hot water
system. This precharged diaphragm tank stores the expanded hot water then returns water to the system
when the temperature drops.
COLD WATER
EXPANSION
TANK
BACKFLOW
PREVENTER
3
TO SYSTEM
T & P
WATER
HEATER RELIEF
VALVE