Johnson Controls HC-67x3 Installation Guide

24-7701-179, Rev. B
100% RHSetpoint
10
0
0
5
V Out
Proportional
Band
Note: The actual output voltage may exceed 10 VDC.
Installation Instructions HC-67x3 Issue Date March 2016
HC-67x3 Humidity Controllers

Application Requirements

The HC-67x3 Humidity Controllers proportionally ramp their output as the humidity changes in the proportional band. The setpoint is at the low end of the proportional band for Direct Acting (DA) and at the high end for Reverse Acting (RA) (shown in Figure 1) for both wall mount and duct probe humidity controllers.
Figure 1: 0 to 10 Volt, RA Application
Configure the controller prior to installation for the following: setpoint, proportional band, action, and output signal. Proceed to the appropriate controller section.

Installation

IMPORTANT: The HC-67x3 Series Humidity
Controllers is intended to provide an input to equipment under normal operating conditions. Where failure or malfunction of the HC-67x3 Series Humidity Controllers 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 HC-67x3 Ser i es Humidity Controllers.
IMPORTANT: Le HC-67x3 Series Humidity Controllers est destiné à transmettre des données entrantes à un équipement dans des conditions normales de fonctionnement. Lorsqu'une défaillance ou un dysfonctionnement du HC-67x3 Series Humidity Controllers risque de provoquer des blessures ou d'endommager l'équipement contrôlé ou un autre équipement, la conception du système de contrôle doit intégrer des dispositifs de protection supplémentaires. Veiller dans ce cas à intégrer de façon permanente d'autres dispositifs, tels que des systèmes de supervision ou d'alarme, ou des dispositifs de sécurité ou de limitation, ayant une fonction d'avertissement ou de protection en cas de défaillance ou de dysfonctionnement du HC-67x3 Series Humidity Controllers.
The controller is available in both a wall mount or duct probe package to suit a variety of sensing application needs. Refer to the Mounting section for a complete list of the tools required for installation.

Parts Included

mounting base for U.S. wallbox or surface mounting
No. 6-32 x 7/8 in. oval-head screw (2)
No. 4-40 x 1/4 in. he x-head cover screw (in the
mounting base)
© 2016 Johnson Controls, Inc. 1 Part No. 24-7701-179, Rev. B www.johnsoncontrols.com
drywall clip mounting kit (includes two each No. 6-20 x 1.25 in. pan-head tapping screws, spring clips, and spacers)

Accessories

Product Code Number
Description
ACC-INSL-1*
Surface Mounting Pad (10/bag)
TE-67MB-600
Mounting Base Kit
** Contains 10 original style and 10 new style doors.
BaseCover
1. Loosen (do not remove) the cover screw with a 1/16 in. (1.5 mm) Allen wrench.
2. Swing the cover down from the base.
No. 6
Screws
Cover Screw
Table 1: Accessories and Replacement Parts for the Wall Mount Humidity Controller
ACC-DWCLIP-0 ACC-INSL-0*
GRD10A-608 T-4000-119
TE-67D0-601** TE-67D0-602**
* These foam pads help prevent drafts from entering the unit through the wall and make installation easier when mounting on an uneven surface.
Drywall Clip Mounting Kit (10/bag) Wallbox Mounting Pad (10/bag)
Plastic Guard with Baseplate and Mounting Ring Allen-head Adjustment Tool (30/bag)
Door Replacement Kit with Johnson Controls logo Door Replacement Kit without logo

Mounting

Location Considerations

IMPORTANT: To avoid damage to the
circuit board and components, do not mount the unit in a location where high concentrations of corrosive vapors are present.
The HC-67x3 controller is shipped with one mounting base for both surface and wallbox mounting. To mount the HC-67x3, release the cover from the base as described in Figure 2.
be careful not to drop or mount the unit where it could be exposed to excessive vibration. The following ambient operating conditions apply:
Temperature: 32 to 122°F (0 to 50°C)
Humidity: 0 to 100% Relative Humidity (RH),
non-condensing; 85°F (29°C) maximum dew point
To mount the HC-67x3 to a wallbox:
1. Pull the cable or wiring through the wallbox and base.
2. Rotate the mounting base, so one of the arrows on the base points up.
Figure 2: Removing the Cover from the Base

Wallbox Mounting: Special Tools Needed

Use a 1/16 in. (1.5 mm) Allen wrench or T-4000-119 Allen-head adjustment tool for mounting.

Wallbox Mounting: Location Considerations

Locate the humidity transmitter on an inside wal l, free from drafts, and out of direct sunlight. The HC-67x3 is shock and vibration resistant; however,
2 TRUERH Series HC-67x3 Humidity Controllers Installation Instructions
3. Fasten the base to the wallbox with the No. 6 screws provided. (See Figure 3.)
Note: These instructions assume a standard 2 x 4 in. (52 x 104 mm) U.S. wallbox is used.
Figure 3: Wallbox Mounting
4. Place the bottom edge of the cover against the bottom lip of the base, and rotate it up onto the base. (See Figure 4.)
5. Tighten the cover screw.
Base
Cover Screw
Cover
Base
Cover Screw
Cover
Figure 4: Attaching the Cover to the Base
Note: Once installed, the unit cannot be removed
from the wall unless the cover screw is loosened as described in Figure 2.
IMPORTANT: Seal the drilled hole or use an ACC-INSL-0 Foam Pad Kit to help reduce drafts entering the unit. (See Table 1.) Drafts could result in false readings.
needed as shown in Figure 6. Do not use the spacers for 5/8 in. (16 mm) drywall.
Note: For replacement spring clips, spacers, and screws, order the ACC-DWCLIP-0 Drywall Clip Mounting Kit. (See Table 1.)

Surface Mounting: Special Tools Needed

hole saw with 1-3/8 in. (35 mm) diameter blade
1/16 in. (1.5 mm) Allen wrench or
T-4000-119 Allen-head adjustment tool
drill with 1/8 in. (3 mm ) drill b it To mount the surface model to drywall, refer to
Figure 6 and proceed as follows:
1. Bend the top and bottom edges of mounting base at the perforations until they break off. (See Figure 5.)
2. Drill a 1-3/8 in. (35 mm) hole in the surface where the unit is to be mounted, and pull the wiring through the drilled hole.
3. Mark the location of the two mounting screws, and drill the holes.
4. Insert the spring clips on each side of the drilled 1-3/8 in. (35 mm) hole, and use the spacers if
Figure 5: Removing the Breakaway Tabs
5. Pull the wiring through the base of the unit.
6. Center the two holes in the base over the two drilled holes, and fasten the base to the drywall using the No. 6 screws provided. (See Figure 6.)
7. Place the bottom edge of the cover against the bottom lip of the base, and rotate it up onto the base as shown in Figure 4.
8. Tighten the cover screw.
9. Once installed, the HE-67xx cannot be removed from the wall unless the cover screw is loosened as described in Figure 2.
IMPORTANT: To prevent drywall damage, do not overtighten the screws.
TRUERH Series HC-67x3 Humidity Controllers Installation Instructions 3
1-3/8 in. (35 mm)
Hole
Drywall
Spacer (2) for
3/8 in. (9.5 mm) and 1/2 in.
(12.7 mm ) Thick Drywall
1-3/8 in.
(35 mm)
Hole
Spring Clip (2)
Drywall
Drywall
Spring
Clip (2)
Base
No. 6-20 x 1.25 in.
Pan-head
Tapp ing Screw (2)

Duct Probe Humidity Controller: Parts Included

Housing
Conduit Hole
Snap-on Cover
Conduit Knockout
(Top and Bott om
of Cover)
Duct
Washer (Cup ped Side
Toward Housing)
Conduit Fitting (Not Provided)
Nut for Conduit Fitting
(Not Provided)
No. 8
Screw
(2)
HC-6703-6N00P duct probe humidity controller
No. 8 x 1 in. Phillips-head sheet metal screw (2)
washer for use with conduit fitting
Note: Conduit fitting and nut are not provided.

Duct Probe Humidity Controller:Special Tools Needed

hole saw with 1 in. (25 mm) diameter blade
drill with 1/8 in. (3 mm ) drill b it
1/8 in. (3 mm) flat-blade and No. 2 Phillips
screwdrivers
pliers
gasket, sealer, or other material to seal the area
between the unit and the duct

Duct Probe Mounting Location Considerations

Place the duct probe humidity controller in a location that complies with the following:
Position: Designed for duct mounting in any position, except with the probe tip pointed up.
Duct Diameter: Recommended minimum diameter (round ducts) or width (square ducts) is 12 in. (305 mm).
Air Stratification (when the unit is mounted on the discharge side of the fan): Recommended location is at least 8 ft (2.4 m) downstream from the humidification equipment, where duct air and water vapor are sufficiently mixed. Avoid areas where the probe may be exposed to condensation.
To mount the duct probe humidity controller, refer to Figure 7, and proceed as follows:
1. Remove any excess insulation from the duct that prevents the probe from extending a minimum of 3 in. (76 mm) into the air stream.
4 TRUERH Series HC-67x3 Humidity Controllers Installation Instructions
Figure 6: Surface Mounting to Drywall
2. Use the hole saw to make a 1 in. (25.4 mm) hole in the duct for inserting the probe.
3. Pull the plastic cover off the housing.
Figure 7: Mounting and Assembly
4. Insert the probe into the duct, and mark the location of the holes for the mounting screws.
5. Remove the unit, and drill a 1/8 in. (3 mm) hole for each mounting screw.
IMPORTANT: Remove the unit before drilling to prevent any metal remnants from falling onto the circuit board. Seal any holes created during installation to help reduce drafts and for more accurate humidity readings.
6. Use a gasket, sealer, or other means to seal the area around the 1 in. (25.4 mm) hole between the unit and the duct.
7. Reinsert the probe, and secure the housing to the duct using the two No. 8 screws provided.

Wiring

!
Proportional
Band
Potentiometer
Output Common Power
20
15
10
5 2
6 to 9 VDC
0 to 10 VDC (Factory Set)
Output
Reverse (Factory Set)
Direct
Action

Setpoint

40
60
80
SP
20
Proportiona l Band
PB
5
2
20
15
10
Power Ground (Common) Output
Probe
Setpoint
Adjustment
Lever
Quick-mount
Installation Base
Pull Tab
Access Door
Manual Override
LED Dis play
CAUTION: Risk of Electric Shock.
Disconnect the power supply befor e m aking electrical connections to avoid electric shock.
MISE EN GARDE: Risque de décharge électrique.
Débrancher l'alimentation avant de réaliser tout raccordement électrique afin d'éviter tout risque de décharge électrique.
Make all wiring connections using No. 18 AWG wire and in accordance with the National Electrical Code and all local regulations.

Wall Mount Humidity Controller

To wire the wall mount model, refer to Figure 8, and proceed with the terminal connections.
Figure 9: Settings on a Duct Probe
Humidity Controller

Setup and Adjustments

Duct Probe Humidity Controller

To wire the duct probe model, refer to Figure 9, and proceed as follows:
IMPORTANT: If using a conduit fitting (not provided), use the washer provided to support the fitting in the housing. If the washer is not used, the fitting could stress the plastic housing.
1. Route the wires from the equipment to the unit
2. Break out the appropriate knockout from the
3. Press the cover onto the base.
Figure 8: Wiring and Proportional Band Setting
through the conduit hole in the housing shown in Figure 7.
cover, shown in Figure 7, using pliers to accommodate the wiring or conduit.
TRUERH Series HC-67x3 Humidity Controllers Installation Instructions 5

Wall Mount Humidity Controller

Setpoint
Adjust the setpoint using the setpoint adjustment lever shown in Figure 10. To open the access door, push down on the pull-tab, and pull the door open.
IMPORTANT: To prevent unauthorized adjustment of the setpoint, install an optional plastic guard. (See Table 1 for ordering information.)
Figure 10: Accessing the Setpoint

Jumpers

Disengage the tabs
to remove the
circuit board.
Reverse (Factory Set)
Direct
Action
0 to 10 VDC (Factory Set)
6 to 9 VDC
Output
Circuit Bo ar d
Disengage the tabs
to remove the
circuit board.
Reverse (Factory Set)
Direct
Action
0 to 10 VDC (Factory Set)
6 to 9 VDC
Output
Circuit Bo ar d
To set the jumpers, refer to Figure 11. Turn the circuit board over, and position the action and output jumpers to suit the application. Reinstall the circuit board.
Figure 11: Jumper Settings

Proportional Band

To set the proportional band, see Figure 8. Use a 1/8 in. (3 mm) flat-blade screwdriver to turn the potentiometer to the position desired.

Troubleshooting

If the humidity controller is not functioning properly:
1. Verify the unit is mounted in a location that is indicative of space humidity (away from drafts and sunlight, for example).
2. Check all supply voltage connections, and make sure the wiring is correct. (Refer to Figure 8 and Figure 9.)
3. Check the proportional band and setpoint settings. If the humidity control equipment is cycling excessively, the proportional band setting may be too low.
4. Verify the jumper positions. If the unit is not delivering an output, make sure the jumpers are appropriately selected for the application.
5. Replace the unit if the troubleshooting suggestions fail to remedy the problem.

Duct Probe Humidity Controller

Setpoint, Proportional Band, and Jumpers

Refer to Figure 9 to change the setpoint, proportional band, or the action and output jumpers for the application desired.
1. Use a 1/8 in. (3 mm) flat-blade screwdriver to turn the setpoint or proportional band potentiometer to the desired setting.
2. Select the appropriate control action and output setting using the jumpers.

Repairs and Replacemen t

The HC-67x3 units are not field repairable. As with any electrical device, keep the air vents clean and free from dust or obstruction. The HC-67x3 controllers have been designed for maintenance-free operation. Sturdy packaging, solid-state components, and high-quality element construction combine for a long-lasting, high performance sensor. To order replacement parts, contact the nearest Johnson Controls representative.
6 TRUERH Series HC-67x3 Humidity Controllers Installation Instructions

Technical Specifications

Product
T
RH Series HC-67x3 Humidity Controllers
Power Requirements
14 to 30 VDC at 10 mA or 20 to 30 VAC, 50/60 Hz at 15 mA with no load, Class 2
Control Action
Jumper selectable, direct or reverse (factory set for reverse acting)
Output Range
impedance
Proportional Band: Adjustable from 2 to 20% RH
Temperature Coefficient
-0.1 to 0.05% RH/°C at 5°C (41°F) to -0.07 to -0.21% RH/°C at 65°C (149°F)
Electrical Connections
3-position screw terminal block
Survival Operating
Ambient Storage
Conditions
-40 to 176°F (-40 to 80°C) 0 to 100% RH, non-condensing; 85°F (29°C) maximum dew point
Materials
Dimensions
Wall Moun t (H x W x D): 3.20 x 3.20 x 1.34 in. (81 x 81 x 34 mm) Probe (L x D): 6.25 in. x 0.98 in. (159 mm x 25 mm)
European Single Point of Contact:
NA/SA Single Point of Contact:
APAC Single Point of Contact:
CHINA
Building Efficiency
Jumper selectable, 0 to 10 VDC (factory set) or 6 to 9 VDC; 5 k ohm minimum load
RUE
Humidity
Element: All-Polymer™ element Sensing Range: 0 to 100% RH, non-condensing Setpoint: Adjustable from 20 to 80% RH
Ambient Operating
Conditions
32 to 122°F (0 to 50°C) 0 to 100% RH, non-condensing; 85°F (29°C) maximum dew point
-22 to 140°F (-30 to 60°C)
Conditions
0 to 100% RH, non-condensing; 85°F (29°C) maximum dew point
Wall Mount: White plastic enclosure for surface or wallbox mounting, including hardware Duct Probe: Light gray plastic cover with dark gray plastic housing and probe
Duct Probe (H x W x D): 3.25 in. x 3.25 in. x 8.27 in. (83 mm x 83 mm x 210 mm)
Shipping Weight
Agency Compliance
The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages result i ng from misapplic ation or misuse of its products.
0.7 lb (0.3 kg) Duct Probe Material: 94-5 V flammability rated per UL 94
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All other marks herein are the marks of their respective owners. © 2016 Johnson Controls, Inc.
TRUERH Series HC-67x3 Humidity Controllers Installation Instructions 7
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