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Honeywell PC8900A Installation Instructions

Honeywell air conditioner user manual
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TRADELINE
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
Gas—Electronic Ignition
Gas-Fired Boilers
Gas—Millivolt
Oil-Fired Boilers
Oil-Fired Furnace
Electric Furnace
Electric Air Conditioning
Baseboard Electric
(120/240 Line Volt)
Heat Pumps/Multistage Equipment
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).
U.S. Registered Trademark
Copyright © 1995 Honeywell Inc. •
®
Compatible
with PC8900
Yes
Yes
Yes
See Note a
Yes
Yes
Yes
Yes
See Note b
Yes
• All Rights Reserved
M3375

Control Panel

INSTALLATION INSTRUCTIONS

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
If this control is replacing a control that contains
M3375
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.
X-XX UL
PC8900A
69-0893-1

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  Summary of Contents for Honeywell PC8900A

  • Page 1: Control Panel

    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. 69-0893-1...
  • Page 2 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 compatibil- ity in Table 1 to make sure the product is suitable for your application.
  • Page 3 MOUNTING HOLES (4) MOUNTING SCREWS (3) M4466 PC8900A CONTROL PANEL CAUTION Disconnect power supply before connecting wiring to prevent electrical shock or equipment damage. beneath each numbered terminal (1,2,3,4). Note the color of wire that is attached to each terminal number to later match the colors with the terminals on the W8900 Remote Module.
  • Page 4: Control Panel

    PC8900A CONTROL PANEL W8900 NOTE WHICH COLOR WIRE IS ATTACHED TO EACH TERMINAL. FOUR WIRES ARE REQUIRED FOR PROPER OPERATION. IF FEWER THAN FOUR ARE AVAILABLE, ADDITIONAL WIRES MUST BE RUN TO PC8900 LOCATION. IF MORE THAN FOUR ARE AVAILABLE, TAPE OFF UNUSED WIRES.