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69-0821

J.F.  •  3-94  •  ©Honeywell Inc. 1994  •  Form Number 69-0821

H808C

Convertible Dehumidifier Controller

Application

The H808C Dehumidifier Controller provides automatic

low voltage control of dehumidifiers in central heating
systems. The humidity controller has an spst, snap-acting,
dust-proof switch and is designed for wall or surface duct
mounting.

MODELS:

H808C1029: Premier White™.

H808C1037: Beige.

ELECTRICAL RATING: 50 VA at 24 Vac.

MAXIMUM AMBIENT TEMPERATURE: 125

°

 F [52

°

 C].

SWITCH DIFFERENTIAL: 5 percent RH, nonadjustable.

SET POINT ADJUSTMENT RANGE: 20 to 80 percent

RH; positive ON and OFF positions.

Installation

CAUTION

1. Installer must be a trained, experienced service

technician.

2. Disconnect power supply before beginning

installation.

3. Conduct a thorough checkout before leaving

installation.

WALL MOUNTING

1. Locate the humidity controller about 5 ft [1.5m]

above the floor on an inside wall.

NOTES:

a. Be sure the humidity controller is subject to average

room temperature and average relative humidity.
The maximum temperature at the location selected
must not exceed 125

°

 F [52

°

 C].

b. The humidity controller can be mounted directly on

the wall.

2. Drill a small hole in the wall.
3. Run low voltage wiring to the location and pull about

6 in. [152 mm] of wire through the hole.

NOTE: Plug the opening to prevent drafts from affecting

humidity controller operation.

4. Remove the humidity controller assembly by prying

with a screwdriver in the notch on the bottom of the case
(Fig. 1).

5. Position the case horizontally over the wires with the

arrows on the tabs pointing up and secure the case to the
wall using the two screws provided.

6. Connect the wires to the humidity controller assem-

bly using leadwires and wire nuts provided (see Wiring
section and Fig. 2).

7. Tuck the wires into the bottom of the case.
8. Snap the cover assembly into the case (Fig. 2).

Fig. 1—Removing humidity controller assembly
from case.

M9262

Fig. 2—Wiring connections on humidity
controller.

UP

UP

UP

QUICK-CONNECT
WIRE LEAD

WIRE
NUT

CASE

COVER

MOUNTING 
HOLE (2)

HUMIDIFIER 
LEADWIRE

M9263

Summary of Contents for H808C

Page 1: ...controller is subject to average room temperature and average relative humidity The maximum temperature at the location selected must not exceed 125 F 52 C b The humidity controller can be mounted directly on the wall 2 Drill a small hole in the wall 3 Run low voltage wiring to the location and pull about 6 in 152 mm of wire through the hole NOTE Plug the opening to prevent drafts from affecting h...

Page 2: ... the case by prying with a screwdriver in the notch in the bottom of the case Fig 1 5 Run low voltage wire from the humidity controller to the template Figs 5 and 6 6 Lay wire over one side of the foam gasket allowing about 6 in 152 mm for connection to the humidity con troller Wire can enter the humidity controller case from any direction NOTE Do not position wire directly under the two stand off...

Page 3: ... 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 M18627 T87F Q539A INTERNALSCHEMATIC FILTER LIGHT T87F H808C TEMPERATURE FALL 1 2 3 PROVIDE OVERLOAD PROTECTION AND DISCONNECT MEANS AS REQUIRED HEATING DAMPER MOTOR IF USED CLOGGED FILTER SWITCH OR COOLING PANEL CONNECTION 1 3 2 B X O R1 W ...

Page 4: ...umidity controller is 90 F 32 C the compensated set point should be 15 percent This is the 25 percent setting less 10 percent for the 10 F 6 C above ambient temperature Checkout Place the system in operation and observe through at least one complete cycle to make certain that all compo nents are functioning properly WIRING All wiring must comply with local codes and ordi nances Make wiring connect...

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