HE-68N3-1N00WS Johnson Controls Humidity Element

Overview

The Johnson Controls HE-68N3-1N00WS is a room wall-mount humidity transmitter with an integrated temperature sensor designed for precise environmental monitoring and control in commercial HVAC systems. It provides both relative humidity (RH) and temperature sensing in a single, low-profile enclosure, helping to reduce installation labor. The unit features an integrated warmer/cooler dial for minor local temperature setpoint adjustments and a temporary occupancy override button to bypass time-of-day scheduling, offering convenient zone control for occupants.

Features

• Dual sensing capability combining relative humidity and temperature monitoring in one wall-mount enclosure.
• 1000 Ohm thin-film nickel sensing element providing high-precision thermal tracking and linear response.
• Integrated warmer/cooler temperature setpoint adjustment dial and manual override button for localized zone tuning.
• Controller configuration DIP switches allowing users to easily adjust room comfort and choose occupancy features.
• User-selectable humidity output switch offering either a 0 to 5 VDC or 0 to 10 VDC output for broad controller compatibility.
• Power supply selection switch enabling the transmitter to be used in high input voltage applications.
• Standard 6-pin modular jack access port for simple connection of accessories to the Zone Bus, allowing technicians to commission or service the controller directly.

Specifications

• Humidity Accuracy: ±3% RH for 20 to 80% RH at 77°F (25°C)
• Humidity Measurement Range: 0 to 100% RH (Calibrated range 10 to 90% RH)
• Temperature Sensor Type: 1000 Ohm Thin Film Nickel (HE-68Nx Models)
• Temperature Measurement Range: 32 to 131°F (0 to 55°C)
• Temperature Sensor Accuracy: ±0.34°F at 70°F (±0.18°C at 21°C)
• Supply Voltage / Power Requirements: 14 to 30 VDC (4.5 to 7.5 mA at 5K ohm load) or 20 to 30 VAC (18 to 25 mA)
• Setpoint Range Resistance: 1500 Ohms
• Terminations: 9-position screw clamp terminal block
• Wire Size: 16 to 24 AWG (18 AWG recommended)
• Enclosure Dimensions: 80 x 80 mm
• Ambient Operating Conditions: 32 to 131°F (0 to 55°C); 10 to 95% RH, non-condensing; 86°F (30°C) maximum dew point

Applications

• Commercial office buildings, institutional facilities, and multi-zone HVAC systems.
• Indoor air quality monitoring, demand-controlled ventilation, and environmental humidity control.
• Building automation, energy management systems, and universal environmental controller applications.
• Localized zone monitoring and direct interface tuning for occupants or technicians managing centralized air handling units.