Honeywell PRO TH3210D User Manual
Installation
Guide
TH3210D
Non-programmable Digital Thermostat
Product Application
This thermostat provides electronic control of 24 VAC heat pump systems with auxiliary heat (2 heat/1 cool).
Power Type
• Battery power
• Common wire
• Common wire with battery backup
System Settings
• Heat, Off, Cool, Em Heat
Fan Settings
• Auto, On
Must be installed by a trained, experienced technician
• Read these instructions carefully. Failure to follow these instructions can damage the product or cause a hazardous condition.
• Check the ratings in this booklet to verify that this product is suitable for your
application (see page 11).
• Always test for proper operation after installation (see pages 7-8).
CAUTION: ELECTRICAL HAZARD
Can cause electrical shock or equipment damage. Disconnect power before
beginning installation.
MERCURY NOTICE
If this product is replacing a control that contains mercury in a sealed tube, do not
place the old control in the trash. Contact your local waste management authority for
instructions regarding recycling and proper disposal.
® U.S. Registered Trademark. Patents pending.
Copyright © 2005 Honeywell International Inc. All rights reserved.
PRO TH3210D Non-programmable Digital Thermostat
1
Install the thermostat about 5 feet (1.5m) above the floor in an area
with good air circulation at average temperature.
Do not install in locations where the thermostat can be affected by:
• Drafts or dead spots behind doors and in corners
• Hot or cold air from ducts
• Sunlight or radiant heat from appliances
• Concealed pipes or chimneys
• Unheated/uncooled areas such as an outside wall behind the thermostat
NO
NO
NO
Table of contents
Installation tips
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Pre-installation checklist ................2
Wallplate installation ......................3
Wiring..............................................4
Wiring diagrams ..............................5
IInnssttaalllleerr SSeettuupp
Battery installation ..........................6
Thermostat mounting ....................6
Installer setup..................................7
Installer system test ........................7
AAppppeennddiicceess
Quick reference to controls............9
Quick reference to display..............9
Compressor protection ..................9
In case of difficulty ......................10
Accessories....................................11
Specifications ................................11
Installation Guide
2
Pre-installation checklist
Package contents
Check to make sure your package includes the following items:
• PRO TH3210D digital thermostat (wallplate attached to back)
• Operating manual
• Wall anchors and mounting screws (2 each)
• AA alkaline batteries (2)
Required tools & supplies
• No. 2 Phillips screwdriver
• Small pocket screwdriver
• Drill
• Drill bit (3/16” for drywall, 7/32” for plaster)
• Hammer
• Pencil
• Electrical tape
• Level (optional)
PRO TH3210D Non-programmable Digital Thermostat
3
Remove the wallplate from the thermostat as shown at left, then follow
directions below for mounting.
1 Pull wires through wire hole.
2 Position wallplate on wall, level and
mark hole positions with pencil.
3 Drill holes at marked positions as
shown below, then tap in
supplied wall anchors.
4 Place wallplate over anchors, insert
and tighten mounting screws.
Grasp top and bottom of wallplate
and pull to remove from thermostat.
Drill 3/16” holes for drywall.
Drill 7/32” holes for plaster.
Wall anchors
Mounting screwsWire hole
Wallplate installation
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