Watts Dormont SmartSense V1-TS Instructions D'installation page 3

! WARNING
To avoid injury, death, fire, explosion, gas leak or property damage
• Installation, testing and service MUST be performed by a licensed plumber / qualified installer.
• Read and follow ALL safety, use, sizing, installation and care instructions and follow all building codes,
construction standards, appliance manufacturer recommendations and instructions, and applicable ANSI
standards.
• ALWAYS replace your appliance gas connector when installing an EFV-TSO.
• DO NOT REUSE. The EFV-TSO is intended for a single installation. If the downstream appliance or gas con-
nector is replaced, then replace this EFV-TSO.
• NEVER install the EFV-TSO directly to an appliance or appliance gas regulator
• The EFV-TSO attaches to the manual gas shut-off valve serving the appliance. (Gas shut-off valve must
have a female NPT thread for proper connection – attaching the EFV-TSO to any other manual shut-off
valve will result in gas leak).
• Installing the EFV-TSO in any location other than the manual gas shut-off valve will result in gas leak or
appliance failure, causing personal injury, death or property loss.
• The manual gas shut-off valve MUST be in the same room and readily accessible within 6 feet of the
appliance.
• ALWAYS install EFV-TSO in easily accessible and well ventilated location. NEVER install in concealed
location.
! WARNING
This EFV-TSO has a bypass feature that allows the flow of gas even when tripped (closed).
Bypass flow in a closed or confined space can lead to explosive concentration of gas, fire, explosion, injury,
death and/or property damage.
Bypass Feature