Bulletin PNV-1
June 2024
1360 Elmwood Avenue, Cranston, RI 02910 USA
Phone: 401.461.1200 Fax: 401.941.5310
Email: info@leonardvalve.com
Web Site: http://www.leonardvalve.com
INSTALLATION ADJUSTMENT SERVICE
PROTON VALVE
IMPORTANT! Provide serial number when ordering parts!!
4. Flush pipes thoroughly after system has been
connected.
5. This assembly MUST be piped according to
LEONARD’S REQUIRED PIPING METHOD W.
6. Refer to pages 2-3 of this bulletin for correct Setup
Instructions.
7. Suitable for indoor use only
1. Leonard Proton Valves are factory pre-assembled and
tested and include digital mixing valve and controls
which function as a system to meet both high and low
demand for tempered water.
2. System should be installed at a location where it can
easily be cleaned, adjusted or repaired.
3. System supplies must be connected as shown (Hot-left,
Cold-right). Exercise caution when soldering.
Model PNV-100-LF – 3/4” Inlets, 1” Outlet
Model PNV-125-LF – 1” Inlets and 1.25”Outlet
Model PNV-150-LF – 1.25” Inlets, 1.5” Outlet
Model PNV-150-LF-LCV – 1.25” Inlets, 1.5” Outlet (less check valves)
Check valves are recommended to prevent cross-flow on “LCV” models
Model PNV-200-LF – 2” Inlets and 2”Outlet
Model PNV-200-LF-LCV – 2” Inlets and 2”Outlet (less check valves)
Model PNV-300-LF – 3” Inlets and 3”Outlet
Model PNV-300-LF-LCV – 3” Inlets and 3”Outlet (less check valves)
Check valves are recommended to prevent cross-flow on “LCV” models
Maximum Operating Pressure 200PSI (13.8 BAR), valve only
Hot Water Temperature Range: 120º - 180ºF (49º - 82ºC)
Cold Water Temperature Range: 39º - 80ºF (4º - 27ºC)
Temperature Adjustment Range: 65º - 180ºF (18º - 82ºC)
INSTALLATION AND FIELD ADJUSTMENTS ARE THE
RESPONSIBILITY OF INSTALLER. READ ALL
INSTRUCTIONS PRIOR TO INSTALLATION
1
WARNING: This product can
expose you to chemicals
including lead, which is known
to the State of California to
cause cancer. For more
information, go to
www.P65Warnings.Ca.gov
!
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