Manufacturer: Johnson Controls |
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Description: 2%RH ELEMENT; SURF/DUCT 10Kohm
Category: Electrical Controls
TRUERH™ Series
HE-67xx Humidity Transmitter with Temperature Sensor
The TRUERH™ Series HE-67xx humidity transmitter
with temperature sensor offers dependable
technology, ease of installation, and application
flexibility in an attractively styled wall mount package.
The patented All-Polymer humidity sensor
construction improves resistance to chemical
corrosion. The element measures humidity within
either ±2% or ±3% accuracy, and generates a voltage
signal proportional to 0 to 100% Relative Humidity (RH).
Johnson Controls designed the HE-6700 Series
humidity transmitter with temperature sensor to use
with most controllers. It works directly with the
VMA1200 and VMA1400 Series controllers. An
additional thin-film nickel or thin-film platinum
temperature sensor adapts the unit for zone enthalpy
control applications. TRUERH products feature
patented circuitry and calibration improvements.
Features and Benefits
❑ National Institute of Standards
and Technology (NIST)
Traceable Calibration
Meets NIST standards for calibration testing,
verifying, and auditing
❑ Time Response Improvement Improves local temperature control, increases
employee comfort, and reduces energy
consumption
❑ Controller Configuration
Switch
Allows the user to adjust room comfort and to
choose occupancy features that match the
application and controller
❑ Occupancy Light-Emitting
Diode (LED) Indicator
Displays the controller’s current operating mode
❑ Setpoint Adjustment
(Optional)
Allows local control of temperature
❑ Manual Override Pushbutton
(PB)
Signals the controller that the space is occupied
in order to override time-of-day setback
❑ Globally Scaled Unit Includes setpoint and bulb indicator (both
optional) with Fahrenheit and Celsius ranges,
65 to 85°F (19 to 29°C)
❑ Universal Mounting Ships with U.S. wallbox and surface mounting
base (all installation hardware included)
Product Overview
IMPORTANT: The HE-67xx Series humidity
transmitter with temperature sensors are intended to
provide input to equipment under normal operating
conditions. Where failure or malfunction of an
HE-67xx Series humidity transmitter with
temperature sensors could lead to an abnormal
operating condition that could cause personal injury
or damage to the equipment or other property, other
devices (limit or safety controls) or systems (alarm or
supervisory) intended to warn of, or protect against,
failure or malfunction of the HE-67xx Series humidity
transmitter with temperature sensors must be
incorporated into and maintained as part of the
control system.
The HE-67xx Series is the second generation of
humidity transmitter with temperature sensors for
sensing space humidity and temperature. The
improved response time from this temperature sensor
results in a 70% faster response time, which leads to:
• increased comfort and reduced complaints about
ambient temperature (hot/cold)
• increased comfort due to temperature overshoot
elimination
• increased savings from reduced energy
consumption
Temperature sensing element selection allows the
user to tailor unit operation to specific application
requirements. The easy-to-install HE-67xx comes
factory calibrated; it can recover quickly from
saturation or loss of power. These features result in a
reduction both of the amount of time needed to install
and commission the unit and of the maintenance cost.
Each unit contains a 1000 ohm nickel or platinum
temperature sensor. An optional warmer/cooler or
graduated scale temperature setpoint adjusts up to
heat or down to cool.
A manual override PB allows the occupant to control
local temperature. By activating this feature, the end
user can signal the controller that the space is
occupied after hours or on weekends.
An occupancy LED (red) displays the controller’s
current operating mode:
• On = Occupied
• Off = Unoccupied
• Flashing = Standby
Another new feature is the Dual Inline Package (DIP)
switch, which programs the HE-67xx to either:
• disable the PB and LED indicator
• enable PB with LED indicator
• enable PB without LED indicator
When released, the HE-67xx access door swings
down to reveal the Zone Bus connector and the
optional temperature indicator and setpoint
adjustments.
The HE-67xx features a quick-mount design that
saves time and simplifies installation.
A mounting base
and screws come with the unit so it can be mounted
directly to drywall (spring clips provided) or a U.S.
wallbox. All wiring connects to terminal blocks.
Repair and Replacement
The HE-67xx units are not field repairable. Unit must be replaced.
Replaces Part Numbers: HE-67Y2-0N0GS, CARHE-67Y2-0N0GS