Installation Guide TH5220D Non-programmable Digital Thermostat firealarmresources.
Product Application This thermostat provides electronic control of 24 VAC single-stage and multi-stage heating and cooling systems, or 750 mV heating systems.
Table of contents Appendices Quick reference to controls..........15 Quick reference to display............15 Battery replacement......................15 In case of difficulty ......................16 Accessories/replacement parts ....17 Specifications ................................17 Installation Pre-installation checklist ................2 Wallplate installation ......................3 Wiring..............................................4 Wiring diagrams ..............................5 Power options ..
Installation Guide Pre-installation checklist Package contents Check to make sure your package includes the following items: FocusPRO™ TH5220D digital thermostat (wallplate attached to back) Wall anchors and mounting screws (2 each) Operating manual AA alkaline batteries (2) Required tools & supplies • No.
FocusPRO™ TH5220D Non-programmable Digital Thermostat Wallplate installation Remove the wallplate from the thermostat as shown at left, then follow directions below for mounting. Insert finger into wire hole and pull to remove wallplate from thermostat. 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.
Installation Guide Wiring CAUTION: ELECTRICAL HAZARD. Can cause electrical shock or equipment damage. Disconnect power before wiring. Wiring Keep wires in this shaded area 1 Loosen screw terminals, insert wires into terminal block, then re-tighten screws. 2 Push excess wire back into the wall opening. Keep wires in shaded area as shown at left. 3 Plug the wall opening with nonflammable insulation to prevent drafts from affecting thermostat operation.
FocusPRO™ TH5220D Non-programmable Digital Thermostat Wiring diagrams Power supply. Provide disconnect means and overload protection as required. Factory-installed jumper. Remove for 2-transformer systems only. Optional 24VAC common connection. In Installer Setup, set system type to Heat Only. In Installer Setup, set system type to 1Heat/1Cool Heat Pump & changeover valve to 0 or B. In Installer Setup, set system type to 2Heat/1Cool Heat Pump.
Installation Guide Wiring diagrams Power supply. Provide disconnect means and overload protection as required. Factory-installed jumper. Remove for 2-transformer systems only. Optional 24VAC common connection. In Installer Setup, set system type to Heat Only. In Installer Setup, set system type to 1Heat/1Cool Heat Pump & changeover valve to 0 or B. In Installer Setup, set system type to 2Heat/1Cool Heat Pump. L terminal is powered continuously when thermostat is set to Em Heat.
FocusPRO™ TH5220D Non-programmable Digital Thermostat Wiring diagrams Power supply. Provide disconnect means and overload protection as required. Factory-installed jumper. Remove for 2-transformer systems only. Optional 24VAC common connection. In Installer Setup, set system type to Heat Only. In Installer Setup, set system type to 1Heat/1Cool Heat Pump & changeover valve to 0 or B. In Installer Setup, set system type to 2Heat/1Cool Heat Pump.
Installation Guide Wiring diagrams Power supply. Provide disconnect means and overload protection as required. Factory-installed jumper. Remove for 2-transformer systems only. Optional 24VAC common connection. In Installer Setup, set system type to Heat Only. In Installer Setup, set system type to 1Heat/1Cool Heat Pump & changeover valve to 0 or B. In Installer Setup, set system type to 2Heat/1Cool Heat Pump. L terminal is powered continuously when thermostat is set to Em Heat.
FocusPRO™ TH5220D Non-programmable Digital Thermostat Wiring diagrams Power supply. Provide disconnect means and overload protection as required. Factory-installed jumper. Remove for 2-transformer systems only. Optional 24VAC common connection. In Installer Setup, set system type to Heat Only. In Installer Setup, set system type to 1Heat/1Cool Heat Pump & changeover valve to 0 or B. In Installer Setup, set system type to 2Heat/1Cool Heat Pump.
Installation Guide Power options & mounting AC Power The thermostat can be powered by 24 VAC power, or by batteries. Connect common side of transformer to “C” terminal To wire the thermostat for AC power, connect the common side of the cooling transformer to the “C” terminal as shown at left. Jumper Important: Remove R/Rc jumper for 2-transformer systems only. (See wiring diagram on page 5.
FocusPRO™ TH5220D Non-programmable Digital Thermostat Installer setup Follow the procedure below to configure the thermostat to match the installed heating/cooling system, and customize feature operation as desired.
Installation Guide Installer setup Follow the procedure below to configure the thermostat to match the installed heating/cooling system, and customize feature operation as desired.
FocusPRO™ TH5220D Non-programmable Digital Thermostat Installer system test Follow the procedure below to test the heating, cooling and fan. System test number System status 10 Done Press To begin, press and hold the and buttons until the display changes Press Press 0 Next to turn on system to turn off system to advance to next test Press DONE to terminate system test NEXT System Test System Status 10 Heating system 0 Heat and fan turn off 1 Heat turns on.
Installation Guide Auto changeover (Setup Function 12) Fan Auto Auto Changeover is a feature used in climates where both air conditioning and heating are used on the same day.When the system is set to Auto, the thermostat automatically selects heating or cooling depending on the indoor temperature. System Auto Heat and cool settings must be at least 3 degrees apart.The thermostat will automatically adjust settings to maintain this 3-degree separation (called “deadband”).
FocusPRO™ TH5220D Non-programmable Digital Thermostat Quick reference to controls Battery holder (see page 10) Digital display screen Temperature buttons Press to adjust temperature settings Function buttons Press to select the function displayed just above each button. (Functions change depending on the task.
Installation Guide In case of difficulty If you have difficulty with your thermostat, please try the suggestions below. Most problems can be corrected quickly and easily. Display is blank Temperature settings do not change • Check circuit breaker and reset if necessary. • Make sure power switch at heating & cooling system is on. • Make sure furnace door is closed securely. • If thermostat is battery powered, make sure fresh AA alkaline batteries are correctly installed (see page 10).
FocusPRO™ TH5220D Non-programmable Digital Thermostat In case of difficulty Heating equipment is running in cool mode • Check Installer Setup, Function 1 (System Type), to make sure it is set to match the installed heating/cooling equipment (see page 11). Cannot change system setting to “Heat” • Check Installer Setup, Function 1 (System Type), to make sure it is set to match the installed heating equipment (see page 11).
Automation and Control Solutions Honeywell International Inc. Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 www.honeywell.com/yourhome Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers. ® U.S. Registered Trademark. © 2005 Honeywell International Inc. Patents pending. All rights reserved. 69-1783 02-2005 firealarmresources.
