Honeywell PC8900A- Manual
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Table of Contents:
- Page 2 – INSTALLATION; When Installing this Product...; CAUTION; Location and Mounting
- Page 3 – WIRING
- Page 4 – Mounting the PC8900 on the Wiring Plate; OPERATION; WARNING; CALIBRATION
PC8900A
Control Panel
X-XX UL
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.
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
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.
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).
M3375
TRADELINE
®
System Type
Compatible
with PC8900
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)
See Note b
Heat Pumps/Multistage Equipment
Yes
69-0893-1
INSTALLATION INSTRUCTIONS
U.S. Registered Trademark
Copyright © 1995 Honeywell Inc. • • All Rights Reserved
M3375
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Summary
PC8900A CONTROL PANEL 2 69-0893—1 INSTALLATION When Installing this Product… 1. Read these instructions carefully. Failure to follow instructions can damage the product or cause ahazardous condition. 2. Check the ratings on the product and the compatibil- ity in Table 1 to make sure the product is s...
PC8900A CONTROL PANEL 69-0893—1 3 NOTE: If the old thermostat has left marks on the wallthat are not covered by the PC8900, order partno. 205224A Wall Cover Plate to mount betweenthe wall and the PC8900. Fig. 2. Mounting PC8900 Wiring Plate. WIRING CAUTION Keep wiring at least one foot away from lar...
PC8900A CONTROL PANEL 4 69-0893—1 Home and Building ControlHoneywell Inc.1985 Douglas Drive NorthGolden Valley, MN 55422 M7519 1 2 3 4 GND W8900 1 2 3 4 NOTE WHICH COLOR WIRE IS ATTACHED TO EACH TERMINAL. FOUR WIRES ARE REQUIRED FOR PROPER OPERATION.IF FEWER THAN FOUR ARE AVAILABLE, ADDITIONAL WIRES...
