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H46C Humidity Controller

 

INSTALLATION INSTRUCTIONS 

APPLICATION 

The H46C Humidity Controller is used with portable and 

central unit dehumidifiers to maintain relative humidity. 

The H46 has an spst, snap-acting switch designed for 

line voltage circuits and two leadwires for switch box 

mounting. 

INSTALLATION 

When Installing this Product... 

1.

  

Read these instructions carefully. Failure to follow 
them could damage the product or cause a 

hazardous condition. 

2.

  

Check the ratings in the instructions and on the 
product to make sure the product is suitable for 

your application. 

3.

  

Installer must be a trained, experienced service 
technician. 

4.

  

After installation is complete, check out product 
operation as provided in these instructions. 

CAUTION 

Electrical Shock Hazard.

 

Can cause electrical shock or equipment 

damage.

Disconnect power supply before connecting 
wiring. 

Location 

Select a location about 5 ft (1.5m) above the floor in an 
area with good circulation at average temperature and 
humidity for the area to be controlled. Avoid locations 
near hot or cold air ducts and discharged air from the 
controlled equipment. 

Mounting 

1. 

Remove the setting knob. 

2. 

To remove cover, pull cover forward from device. 

3.

  

Install a 2 in. x 3 in. (51 mm x 76 mm) vertical

 

switch box at the selected location.

 

4.

  

Using the two screws provided, fasten the adapter 

plate to the switch box, as shown. 

5.

  

Pull the wires from the switch box through the 
opening in the adapter plate and connect to the 

H46 leadwires with the solderless connectors 

provided. See Fig. 2 and 3 for typical hookup. 

6.

  

Push the wires back into the switch box. 

7.

  

Place the H46 against the adapter plate, making 

certain the tab at the bottom of the plate fits into the 

notch on the H46. 

8.

  

Fasten the H46 to the adapter plate by tightening 

the captive screw. 

9.

  

Replace the cover and the setting knob. 

2 X 3 IN. 

H46 
(COVER OFF) 

H46 CAPTIVE 
MOUNTING SCREW 

ADAPTER PLATE 
SCREWS (2) 

SWITCH BOX 

NYLON 
ELEMENT 

H46 LEADWIRES (2) 

PLATE TAB 

ADAPTER PLATE 

WALL SURFACE 

M7907 

Fig. 1. Mounting H46C on vertical switch box. 

Wiring 

Disconnect power supply before connecting wiring to 
avoid electrical shock or equipment damage. All wiring 
must comply with local codes or equipment damage. All 
wiring must comply with local codes and ordinances. Do 
not exceed contact and coil ratings when wiring into 
system. See Fig. 2. 

® U.S. Registered Trademark 
Copyright © 2003 Honeywell International Inc.  • 

• All Rights Reserved 

95-5367-4 

Summary of Contents for H46C

Page 1: ...Mounting 1 Remove the setting knob 2 To remove cover pull cover forward from device 3 Install a 2 in x 3 in 51 mm x 76 mm vertical switch box at the selected location 4 Using the two screws provided fasten the adapter plate to the switch box as shown 5 Pull the wires from the switch box through the opening in the adapter plate and connect to the H46 leadwires with the solderless connectors provide...

Page 2: ...es contact on a relative humidity rise to the setpoint to start the dehumidifier On a decrease in relative humidity to the setpoint minus the differential the switch breaks contact to stop the dehumidifier Turn the knob clockwise to the setting stop to place the H46 in the On position Turn the knob counterclockwise to the setting stop to place the H46 in the Off position CHECKOUT After completing ...

Page 3: ...X O R1 W Y W1 Y1 G R H R HEAT OFF FAN AUTO ON COOL HEAT OFF COOL FIXED COOL ANTICIPATOR ADJUSTABLE HEAT ANTICIPATOR HEATING RELAY OR VALVE COIL COOLING CONTACTOR COIL FAN RELAY COIL FILTER LIGHT T87F CLOGGED FILTER SWITCH OR COOLING PANEL CONNECTION 1 M7914 Fig 4 Typical series wiring hookup of H46C with T87F Q539A combination for dehumidification and mildew control 3 95 5367 4 ...

Page 4: ...ational Inc Honeywell Limited Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley MN 55422 Scarborough Ontario M1V 4Z9 Printed in U S A on recycled 95 5367 4 G H Rev 07 03 paper containing at least 10 www honeywell com yourhome post consumer paper fibers ...

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