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Model 8265 Installation and Operation Manual
5/2 Day Programmable Heat Pump Thermostat
Failure to follow and read all instructions carefully before installing or operating this control could cause personal
injury and/or property damage. If you have any questions, please call Research Products Corporation at (800) 334-6011.
PREPARATIONS
Assemble tools required as shown below.
Wire cutter/stripper
Flat blade
screwdriver
Electric or cordless
drill with 3/16 inch
drill bit, if needed.
Level
THERMOSTAT DETAILS
FIGURE 1 – Thermostat Base
W903
W904 Clip
Clip to Disable
for Celsius
Progressive Recovery
instead of
Feature
Fahrenheit
Programmable Thermostat
Mounting hole
W905 Clip for
W906 for Emergency Heat
Slow Cycle
Second Stage Fan Control.
instead of
Clip for Fan Control by Equipment
Fast Cycle
instead of by Thermostat.
O/B
Terminal
Selection
Switch
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Table of Contents
Related Manuals for Aprilaire 8265
Summary of Contents for Aprilaire 8265
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Page 1: Programmable Thermostat
Programmable Thermostat Model 8265 Installation and Operation Manual 5/2 Day Programmable Heat Pump Thermostat Failure to follow and read all instructions carefully before installing or operating this control could cause personal injury and/or property damage. If you have any questions, please call Research Products Corporation at (800) 334-6011. -
Page 2: Mounting And Wiring
THERMOSTAT APPLICATIONS Description Description Heat Pump (No Aux or Emergency Heat) Standard Central Air Conditioning Heat Pump (with Aux or Emergency Heat) Gas or Oil Heat Standard Heat & Cooling Systems Electric Furnace Standard Heat Only Systems Hydronic (Hot Water) Zone Heat – 2 Wires Millivolt Heat Only Systems –... - Page 3 ATTACH THERMOSTAT BASE TO WALL 1. Remove the packing material from the thermostat. Gently pull the 6. Wire the thermostat. IMPORTANT! ENSURE THE POWER AT cover straight off the base. Forcing or prying on the thermostat will THE HVAC EQUIPMENT IS OFF. cause damage to the unit.
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Page 4: Check Thermostat Operation
CHECK THERMOSTAT OPERATION COOLING SYSTEM NOTE: To prevent static discharge problems, touch side of thermostat to release static build-up before touching 1. Move SYSTEM switch to COOL position. any keys. 2. Press to adjust thermostat setting below room temperature. The blower should come on immediately on high speed, followed If at any time during testing your system does not operate properly, by cold air circulation. - Page 5 This is intended to help protect the compressor from short cycling. Some newer compressors already have a time delay built in and FIGURE 5 – Thermostat buttons, display and switches do not require this feature. Your compressor manufacturer can tell you if the lockout feature is already present in their system.
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Page 6: Programming Your Thermostat
PROGRAMMING YOUR THERMOSTAT This section will help you plan your thermostat’s program to meet ENTER HEATING PROGRAM your needs. For maximum comfort and effi ciency, keep the following guidelines in mind when planning your program. 1. Move the SYSTEM switch to HEAT. •... -
Page 7: Cleaning The Thermostat
Heating/Cooling Schedule Plan (Factory Program) CHECK YOUR PROGRAMMING Weekday (5 Day) Weekend (2 Day) Follow these steps to check your thermostat programming one fi nal Period Start Time Temperature Start Time Temperature time before beginning thermostat operation. 6:00 AM 70°F 6:00 AM 70°F 1. -
Page 8: Limited Warranty
WARRANTY REGISTRATION Please… Take a few minutes to visit us online at www.aprilaire.com to register your Aprilaire product. If you do not have online access, please mail a postcard with your name, address, phone number, product or model purchased, date of purchase and dealer name to: Research Products Corporation, P.O.