Install Instructions

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Table Of Contents

HE-6800 Series Humidity Transmitters with Temperature Sensor

Installation Instructions

Refer to the QuickLIT Web site for the most up-to-date version of this document.

Applications

The HE-6800 Series Humidity Transmitters with

Temperature Sensor provide both humidity and

temperature sensing in room wall-mount applications.

The transmitter offers local warmer/cooler temperature

setpoint adjustment and temporary occupancy

override. The humidity sensor provides Relative

Humidity (RH) accuracy of ±2% or ±3% RH and

measures RH over the entire range of 0 to 100%.

A warmer/cooler dial is included on certain models for

minor temperature adjustments from the setpoint. All

models feature an occupancy override button that

allows the user to override time-of-day scheduling

when the space is occupied outside of the normal

occupied hours schedule. The transmitter also includes

DIP switches to enable or disable override and

Light-Emitting Diode (LED) functions. In addition, all

models feature a user-selectable 0 to 5 VDC or

0 to 10 VDC humidity output switch, and a power

supply selection switch.

The HE-6800 Series Humidity Transmitters include

screw terminal block terminations that provide flexibility

for field wiring. All models include a 6-pin modular jack

access port for connecting accessories to the

Zone Bus. This feature allows a technician to

commission or service the controller via the transmitter.

Installation

Special Tools Needed

A 1/16 in. (1.5 mm) Allen wrench or a

Johnson Controls® T-4000-119 Allen-Head Adjustment

Tool is required during installation.

Accessories

Installing the HE-6800 Series Humidity Transmitter on

a wallbox requires accessory NS-WALLPLATE-0,

ordered separately.

Mounting

Location Considerations

Locate the HE-6800 Series Humidity Transmitter:

• on a partitioning interior wall, and approximately

5 ft (1.5 m) above the floor in a location of average

temperature

• away from direct sunlight, radiant heat, outside

walls, behind doors, air discharge grills, stairwells,

or outside doors

• away from steam or water pipes, warm air stacks,

unconditioned areas (no heating and no cooling),

or sources of electrical interference

Note: The HE-6800 Series Humidity Transmitter is

shock and vibration resistant; however, be careful not

to drop the unit or mount it where it could be exposed

to excessive vibration.

The following ambient operating conditions apply:

• Temperature: 32 to 131°F (0 to 55°C)

• Humidity: 10 to 95% RH, noncondensing;

86°F (30°C) maximum dew point

To mount the transmitter to the wall:

1. Use a 1/16 in. (1.5 mm) Allen wrench or

Johnson Controls T-4000-119 Allen-Head

Adjustment Tool to loosen the security screw on

the top of the unit.

IMPORTANT: Use the HE-6800 Series Humidity

Transmitter only to provide input to equipment under

normal operating conditions. Where failure or

malfunction of the transmitter could lead to personal

injury or property damage to the controlled

equipment or other property, additional precautions

must be designed into the control system.

Incorporate and maintain other devices, such as

supervisory or alarm systems or safety or limit

controls, intended to warn of or protect against

failure or malfunction of the transmitter.

HE-6800 Series Humidity Transmitters with

Temperature Sensor

Installation Instructions

HE-68xx-xN00WS

Part No. 24-10409-28, Rev. B

Issued April 12, 2011

Supersedes October 1, 2010

Summary of content (7 pages)

PAGE 1
HE-6800 Series Humidity Transmitters with Temperature Sensor Part No. 24-10409-28, Rev. B Issued April 12, 2011 Supersedes October 1, 2010 Installation Instructions HE-68xx-xN00WS Refer to the QuickLIT Web site for the most up-to-date version of this document. Applications Installation The HE-6800 Series Humidity Transmitters with Temperature Sensor provide both humidity and temperature sensing in room wall-mount applications.
PAGE 2
. Insert a blade screwdriver into the slot next to the security screw location, and then carefully pry the top edge of the transmitter assembly away from its mounting base and remove. Wiring ! IMPORTANT: Do not remove the Printed Circuit Board (PCB). Removing the PCB voids the product warranty. 3. Pull out approximately 6 in. (152 mm) of cable from the wall, and insert the cable through the hole in the mounting base. 4.
PAGE 3
Setpoint RT D 1 Temperature Sensor 1k Ohms LED Manual Override Button 2 Temperature Sensor Common 3 Setpoint Common 4 Setpoint 5 24 VAC/ +15 VDC 6 Common 8 LED 7 Zone Bus 9 RH Output 0–10 VDC O N 1 2 FIG:term_blck_LED Internal wiring diagram with DIP switches set as shown on the right, LED Mode = ON and Manual Override push button enabled.
PAGE 4
Terminal Signal Designation 1 Temperature Sensor and Manual Override 2 Temperature Sensor Common 3 Setpoint Common and LED Common 4 Setpoint 5 24 VAC (+15 VDC – VMA Only1) 6 Common (for Power, RH Output, Zone Bus, or Manual Override) 7 LED MODE DIP switch in the default position. OFF Zone Bus KEY: 8 LED and Manual Override 9 RH Output (0 to 10 VDC) 1. ! CAUTION: Risk of Property Damage. Do not use switch settings other than those shown in Figure 4.
PAGE 5
Table 3: LED Mode and Functions LED Mode Functions Switch Positions Enabled Disabled OFF Sensor, PB LED Switch positions are down, up, and down. The LED remains off at all times. ON LED, Sensor, PB --- Switch positions are factory set up, down, and up. The controller determines the LED mode. NO PB Sensor LED and PB Switch positions are all down. LED is off, and the PB does not function.
PAGE 6
Table 4: Optional Accessories Product Code Number Description 1 ACC-INSL-0 Wallbox Mounting Pad (10 per Bag) ACC-INSL-11 Surface Mounting Pad (10 per Bag) NS-WALLPLATE-0 Adapts an HE-6800 Series Humidity Transmitter (3-3/16 x 3-3/16 in. [80 x 80 mm]) to a Standard 3-3/16 x 4-3/4 in. (80 x 120 mm) Wallbox T-4000-119 Allen-Head Adjustment Tool (30 per Bag) 1.
PAGE 7
HE-6800 Series Humidity Transmitters with Temperature Sensor (Part 2 of 2) Dimensions (H x W x D) HE-68xx-0 Models 3-3/16 x 3-3/16 x 1-5/16 in. (80 x 80 x 32 mm) HE-68xx-1 Models 3-3/16 x 3-3/16 x 1-7/16 in. (80 x 80 x 35 mm) Shipping Weight Compliance 0.44 lb (0.20 kg) United States UL Listed, File E107041, CCN PAZX, Under UL 916, Energy Management Equipment Canada UL Listed, File E107041, CCN PAZX7, Under CAN/CSA C22.2 No. 205, Signal Equipment Europe CE Mark – Johnson Controls, Inc.