HOT INLET
COLD INLET
MIXED OUTLET
Bulletin NUC-1
March 2022
1360 Elmwood Avenue, Cranston, RI 02910 USA
Phone: 401.461.1200 Fax: 401.941.5310
Email:
Web Site: http://www.leonardvalve.com
INSTALLATION ADJUSTMENT SERVICE
NUCLEUS VALVE
IMPORTANT! Provide serial number when ordering parts!!
INSTALLATION
1. Leonard Nucleus 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.
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 2-4 of this bulletin for correct Setup
Instructions.
Model NV-150-LF – 1¼” Inlets, 1½” Outlet
Model NV-200-LF – 2” Inlets and Outlet
Model NV-300-LF – 3” Inlets and Outlet
Maximum Operating Pressure 125PSI (8.6 BAR) for Hot and Cold Water.
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
!
