Johnson Controls TRUE RH HC-67x3 Manuale utente

Installation Instructions HC-67x3

Issue Date June 2, 2014

Part No. 24-7701-179, Rev. A www.johnsoncontrols.com

TRUERH™ Series

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.

100% RH

Setpoint

V Out Proportional

Band

Note: The actual output

voltage may exceed 10 VDC.

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 Series

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. hex-head cover screw (in the

mounting base)

•drywall clip mounting kit (includes two each

No. 6-20 x 1.25 in. pan-head tapping screws, spring

clips, and spacers)

2TRUERH Series HC-67x3 Humidity Controllers Installation Instructions

Accessories

Table 1: Accessories and Replacement Parts for the Wall Mount Humidity Controller

Product Code Number

Description

ACC-DWCLIP-0 Drywall Clip Mounting Kit (10/bag)

ACC-INSL-0* Wallbox Mounting Pad (10/bag)

ACC-INSL-1* Surface Mounting Pad (10/bag)

GRD10A-608 Plastic Guard with Baseplate and Mounting Ring

T-4000-119 Allen-head Adjustment Tool (30/bag)

TE-67MB-600 Mounting Base Kit

TE-67D0-601** Door Replacement Kit with Johnson Controls logo

TE-67D0-602**

Door Replacement Kit without logo

* These foam pads help prevent drafts from entering the unit through the wall and make installation easier when mounting

on an uneven surface.

** Contains 10 original style and 10 new style doors.

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.

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.

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 wall,

free from drafts, and out of direct sunlight. The

HC-67x3 is shock and vibration resistant; however,

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.

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.

No. 6

Screws

Cover

Screw

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.

TRUERH Series HC-67x3 Humidity Controllers Installation Instructions 3

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.

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 bit

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

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.)

Base

Cover

Screw

Cover

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.

4TRUERH Series HC-67x3 Humidity Controllers Installation Instructions

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

Spring

Clip (2)

Base

No. 6-20 x 1.25 in.

Pan-head

Tapping Screw (2)

Figure 6: Surface Mounting to Drywall

Duct Probe Humidity Controller: Parts Included

•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 bit

•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.

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.

Housing

Conduit Hole

Snap-on Cover

Conduit Knockout

(Top and Bottom

of Cover)

Duct

Washer (Cupped Side

Toward Housing)

Conduit Fitting

(Not Provided)

Nut for Conduit Fitting

(Not Provided)

No. 8

Screw

(2)

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.

TRUERH Series HC-67x3 Humidity Controllers Installation Instructions 5

Wiring

CAUTION: Risk of Electric Shock.

Disconnect the power supply before making

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.

Proportional

Band

Potentiometer

Output

Common

Power

Figure 8: Wiring and Proportional Band Setting

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

through the conduit hole in the housing shown in

Figure 7.

2. Break out the appropriate knockout from the

cover, shown in Figure 7, using pliers to

accommodate the wiring or conduit.

3. Press the cover onto the base.

6 to 9 VDC

0 to 10 VDC

(Factory Set)

Output

Reverse

(Factory Set)

Direct

Action

Setpoint

40 60

Proportional Band

5220

Power

Ground (Common)

Output

Probe

Figure 9: Settings on a Duct Probe

Humidity Controller

Setup and Adjustments

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.)

Setpoint

Adjustment

Lever

Quick-mount

Installation Base

Pull Tab Access Door

Manual Override

LED Display

Figure 10: Accessing the Setpoint

6TRUERH Series HC-67x3 Humidity Controllers Installation Instructions

Jumpers

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.

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 Board

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 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.

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.

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.

Repairs and Replacement

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.

TRUERH Series HC-67x3 Humidity Controllers Installation Instructions 7

Technical Specifications

Product

RUE

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

Jumper selectable, 0 to 10 VDC (factory set) or 6 to 9 VDC; 5 k ohm minimum load

impedance

Humidity Element: All-Polymer™ element

Sensing Range: 0 to 100% RH, non-condensing

Setpoint: Adjustable from 20 to 80% RH

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

Ambient Operating

Conditions

32 to 122°F (0 to 50°C)

0 to 100% RH, non-condensing; 85°F (29°C) maximum dew point

Survival Operating

Conditions -22 to 140°F (-30 to 60°C)

0 to 100% RH, non-condensing; 85°F (29°C) maximum dew point

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

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

Dimensions

Wall Mount (H x W x D): 3.20 x 3.20 x 1.34 in. (81 x 81 x 34 mm)

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)

Probe (L x D): 6.25 in. x 0.98 in. (159 mm x 25 mm)

Shipping Weight 0.7 lb (0.3 kg)

Agency Compliance Duct Probe Material: 94-5 V flammability rated per UL 94

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 resulting from misapplication or

misuse of its products.

Building Efficiency

507 E. Michigan Street, Milwaukee, WI 53202

Metasys® and Johnson Controls® are registered trademarks of Johnson Controls, Inc.

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