Owner's Manual

8
PRESSURE REDUCING VALVE
A bronze pressure reducing valve with built-in bypass is supplied with the unit.
This valve is shipped separately for in-line installation. The ¾” NPT valve is
adjustable from 25-psi to 75-psi (approximately 17-psi to 67-psi including
pressure drop through the valve). The inlet connection is supplied with a ¾”
union by sweat connection. The outlet connection is ¾” female NPT. The set
screw located at the top of the diaphragm adjusts the pressure, turn clockwise to
increase the pressure and counter-clockwise to decrease the pressure. Pressure
reducing valves for the J3 and J4 models are optional.
DIELECTRIC UNIONS
Dielectric unions are provided for the inlet and outlet nipples to isolate stray
ground currents to reduce the possibility of galvanic corrosion. (Optional on the
J3 and J4 Models).
OPTIONAL EQUIPMENT (not available on J4 Models)
Slide Brackets
Available for the J6 Model only, these brackets allow for mounting the booster heater under a
counter. See slide bracket diagram on page 9 for details.
Shock Absorber
The optional shock absorber can be installed between the booster and the
dishwasher to reduce the harmful pressures resulting from quick closing
dishwasher solenoid valves.
Legs
In lieu of the standard black plastic legs,
optional adjustable legs are available in
stainless steel, die-cast nickel plated, and
floor mount stainless steel. All optional legs
are adjustable height type. Floor Mount Nickel Plated Stainless Steel
Security Package
For prison and other secure facilities a tamper resistant package is available. All external screws are
spader type requiring a spader wrench for removal.
Alternate Voltage
Other voltages are available, including 277V single-phase, and 380V, 415V, and 440V three-phase.
Consult the factory for details.
Water Treatment System
The optional water treatment system provides superior mineral scale
prevention and corrosion control by feeding a special blend of scale
control compounds into the warm water stream before the heater. The in-
line system includes a clear cartridge housing to allow an operator to view
the cartridge and determine when it needs replacement without the need to
open the system.
XB1 Expansion Board
An optional expansion board to the control board can be used to for additional circuit firing when
more than two circuits are required and/or as an auxiliary high or low temperature alarm/relay. On
models with three contactors the XB1 is supplied as standard.
Remote Alarm Plug Adapter
An optional plug adapter is available to provide a remote fault alarm signal
through the J4 connector on the control board. See page 12 for installation
details.
24-Volt Heater Interlock Adapter
An optional plug adapter is available to interlock the heater via a 24-volt
signal through the J1 connector on the control board. The 24-volt heater
interlock adapter is supplied standard on the J3 model. See page 13 for
installation details. (Only available with r23 or later software).