Catalogue

WSHP-PRC020D-EN 59
Mechanical Specifications
Deluxe Controls (option)
The deluxe control package provides a 75VA transformer with circuit breaker.The Micro-processor
based controller is designed to include a lockout relay, anti-short cycle compressor protection,
random start delay, brown-out protection, low pressure time delay, compressor delay on start and
an open relay for night setback or pump request. Optional wiring from the factory for condensate
overflow and compressor enable are also supplied. LEDs (light emitting diodes) are included for
diagnostics of the equipment.The deluxe controller accepts a standard 24V digital thermostat.
ZN510 Controller (option)
This system utilizes factory furnished and mounted DDC controls for operation on a COMM 5
(LonMark) link.TheTracer™ ZN510 control package includes a 75 VA transformer.The controller
provides random start delay, heating/cooling status, occupied/unoccupied mode, fan status and
filter maintenance options. Optional wiring from the factory for condensate overflow is also
available.Three LEDs (light emitting diodes) are included for diagnostics of the equipment.
Return-Air Hinged Acoustical Door (option)
A frame mounted acoustical door is provided to attenuate noise.The door is hinged to the wall
frame, and contains magnetic latches to keep the door aesthetically in place. It is flush mounted
to the wall as to not protrude into the owner space.The door allows access to the unit for ease of
filter replacement
The door is constructed from heavy-gauge formed galvanized steel and painted Polar white. It is
made available in a keylock design and a keyless design to fit several design applications.
Supply-Air Grilles (option)
Supply air grilles are available for air discharge from the unit.The grilles are made in either a
vertical louver, or a bi-directional louver option.The grilles are painted the Polar White to match
the door assembly.
Ball Valves (option)
Ball valves are field installed between the riser stub out and the flexible hose.
Hoses (option)
Hoses shall consist of a stainless steel outer braid with an inner core of tube made of a nontoxic
synthetic polymar material.The hoses shall be suitable for water temperatures ranging between
33°F and 211°F without the use of glycol.
Automatic Flow Devices (option)
The automatic self-balancing device shall automatically limit the rate of flow to within 10-percent
of the specified amount, over a 40 to 1 differential pressure operating range of 2 to 80 PSID.The
operational temperature shall be rated from fluid freezing, to 225°F.
The valve body shall be suited for working pressures of 400 PSIG.The valve internal core shall
consist of one or more high temperature elastomeric diaphragms and precision orifice with
sculptured orifice seat.
Dual pressure/temperature test ports shall be standard for verifying the pressure differential and
system temperature.