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HZ432- TrueZone
Control Panel
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HZ432 Owners Manual
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Residential/ Light Commercial
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Gas/ Electric/ or Heat Pump
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Up to 3 heat/ 2 cool
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4+ Zones
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Conventional, Heat Pump or Dual Fuel
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C7735A1000-Discharge Air Sensor
Discharge air temperature sensor are required
in by-pass zoning applications. Without these safety controls, the
potential exists to ice the evaporator coil or trip the furnace or
Heat Pump’s high limit control.
In all Conventional Zoning Systems, the Discharge
Air Temperature Sensor “DATS” C7735A1000 (formerly ZMS) serves as
both heating and cooling limit.
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C7735A1000 Product Manual |
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ZD Series-Parallel Blade Dampers
The ZD is a power close, and spring open damper. It has a 24-volt,
spring-return, power-closed damper motor used to control circulating
air in heating, cooling and ventilating systems. It is used when a
normally-open damper is required. The ZD is typically used with the
TotalZone® Systems and other electronic mini-zone damper systems.
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ZD Series Product Data
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Kevlar gearing reduces wear, more than doubling
damper life.
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Adjustable range stops.
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Mechanical visual position indicator for damper
status.
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Solid construction using extruded aluminum frame
and blades.
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Parallel blade design for low leakage
performance.
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Quieter operation with fewer blades.
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Simple, easy-to-wire, two-wire installation.
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Reliable, strong, 24-volt spring-return motor.
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Fail-safe, normally open operation.
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Compatible with conventional and Networked
Zoning.
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ARD Series-Automatic Round
Dampers
The ARD is a round damper with a 24 Vac, spring-return
damper motor used to control circulating air in heating,
cooling, and ventilating systems.
The damper is shipped as a powered closed/spring return
open damper for use with the TotalZone® Damper System,
Electronic MiniZone Damper System and other normally open damper
systems.
The damper can be field-converted to a power open/spring
return closed damper when used as an independent zone or
for fresh air intake for ventilation or combustion make-up air.
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ARD Series Product Data
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Galvanized steel.
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Single-blade damper.
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For use with Trol-A-Temp. Zoning Systems.
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Can be converted to power open/spring return
closed damper when used as an independent zone or for fresh air
intake.
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Blade closes off tightly against gasket for
minimal leakage.
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Rated to operate up to 1 in. wc.
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SPRD Series-Static Pressure
Regulating Dampers
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SPRD Install Manual
The Static Pressure Regulating Damper (SPRD) is a round or
rectangular single-blade barometric relief damper. It is a
mechanical damper with no electrical connections. The blade has a
counter-balance weighted arm that can be adjusted to open when
necessary. It is recommended for use on zone damper systems up to.5
in. static pressure and up to 2000 cfm. Systems above 2000 cfm may
require use of the SPC static pressure control and MARD damper. The
SPRD is used on zoned systems when the automatic closing of zone
dampers can create an excessive increase in the air pressure and
velocity through the duct system. This increase can reduce the
volume of air through the air handler and cause it to trip on high
limit or to create ice on the coil.
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Counter-balanced
weighted arm to control bypass air for zoned systems.
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Available in rectangular/square and round sizes.
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Air pressure in duct system increases as zone
dampers close, pushing the SPRD open automatically.
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Arm and weight both adjustable to control amount
of air bypassed.
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Recommended for low pressure systems with less
than 0.5 in. wc.
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Available in: Round sizes 7, 8, 9, 10, 12, 14
and 16 in. diameters.
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Rectangular sizes (width x height)12 x 8, 12 x
10, 12 x 12, 20 x 8, 20 x 10, 20 x 12 in
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