Honeywell PC8900A User Manual

TRADELINE

PC8900A

Control Panel

INSTALLATION INSTRUCTIONS

APPLICATION

The PC8900 Control Panel provides 24 Vac energy saving control for a heating and cooling system, while providing reliable, precise temperature control, ventilation control, humidity control, programmable fan control and air filter/ cleaner status information.

The PC8900 must be used with a W8900 Remote Module.

The PC8900 includes a SYSTEM light, which is lit when the heating or cooling system is running, and a CHECK light, which lights as a prompt to check messages on the CHECK list.

These models will replace most heating/cooling system thermostats. Check Table 1 to make sure the thermostat is compatible with the intended system.

Table 1. Compatibility Chart.

System Type

Gas—Standing Pilot Yes Gas—Electronic Ignition Yes Gas-Fired Boilers Yes Gas—Millivolt See Note a Oil-Fired Boilers Yes Oil-Fired Furnace Yes Electric Furnace Yes Electric Air Conditioning Yes Baseboard Electric

(120/240 Line Volt) Heat Pumps/Multistage Equipment Yes

a Use R8222N Relay if installing as part of millivolt

system (see W8900 Remote Module Instructions form 69-0894).

b Use R8222D Relay if installing as part of a 120/240 Vac

baseboard electric system (see W8900 Remote Module Instructions, form 69-0894).

Compatible

with PC8900

See Note b

SPECIFICATIONS

Temperature Setting Range:

45°F to 88°F (7°C to 31°C).

Humidity Setting Range:

10% to 80%.

Operating Relative Humidity:

5% to 90%, noncondensing.

Finish:

White

Dimensions in in. (mm):

6-3/8 (163) width x 4 (102) height x 1-5/8 (41) depth.

Accessories:

205224A Wall Cover Plate to cover marks left on the

wall by the old thermostat. C7189A Wall Mount Indoor Air Temperature Sensor. C7089A Outdoor Sensor.

RECYCLING NOTICE

M3375

If this control is replacing a control that contains mercury in a sealed tube, do not place your old control in the trash.

Contact your local waste management authority for instructions regarding recycling and the proper disposal of any control containing mercury in a sealed tube.

If you have any questions, call Honeywell Inc. at 1-800-468-1502, Monday through Friday, 7 AM to 5:30 PM, Central time.

M3375

X-XX UL

69-0893-1

PC8900A CONTROL PANEL

INSTALLATION

When Installing this Product…

1. Read these instructions carefully. Failure to follow instructions can damage the product or cause a hazardous condition.

2. Check the ratings on the product and the compatibility in Table 1 to make sure the product is suitable for your application.

3. Installer must be a trained, experienced service technician.

4. After completing installation, use these instructions to check out product operation.

CAUTION

Disconnect power supply before wiring to prevent electrical shock or equipment damage.

Location and Mounting

NOTE: The following location guidelines apply only if a

remote sensor is not part of the installation. If a remote sensor is installed, the PC8900 can be installed in any convenient location, with these guidelines applying to the sensor location.

Locate the PC8900 where it will not be subjected to tampering.

1. Choose a location on an inside wall about 5 ft (1.5m) above the floor. A horizontally mounted standard 2 in. x 4 in. (51 mm x 102 mm) outlet box can also be used at the selected location for the PC8900.

2. Be sure that the wire distance between the PC8900 and the W8900 does not exceed 200 feet.

3. Be sure that there is good air circulation at average temperature at the chosen location. Avoid the following locations because they can introduce errors in temperature measurements.

• Hot areas caused by:

• Concealed pipes or ducts.

• Drafts from fireplaces or other heat sources.

• Convection or radiant heat from the sun or

electrical equipment.

• Cold areas caused by:

• Concealed pipes or ducts.

• Drafts from windows and doors.

• Unheated areas on the other side of the wall

location.

• Dead air areas:

• Behind doors, furniture and curtains.

• In corners and alcoves.

4. Mark the area on the wall where the PC8900 or outlet box will be mounted.

5. Run cable to a hole at the selected wall location. Pull approximately 3 inches of wire through the opening. Color-coded 18-gauge thermostat wire is recommended.

6. Position wiring plate on wall.

7. Level the wiring plate, for appearance only, using the posts on top of the wiring plate. Device will function properly even when not level.

8. Mark three mounting holes using a pencil.

9. Remove wiring plate from wall and drill 3/16 inch holes in wall, if drywall, as marked. For firmer material such as plaster or wood, drill 7/32 inch holes. Gently tap anchors provided into drilled holes until flush with the wall. See Fig. 2.

10. Position wiring plate over holes in wall or outlet box, pulling wires through wiring opening. Loosely insert two mounting screws into holes.

11. Tighten mounting screws.

69-0893—1

YES

Fig. 1. Typical Location of PC8900.

5 FEET

(1.5 METERS)

M6394

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