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User Manual
- User Manual - (English)
- PRODUCT INFORMATION (English, France) - (English)
- Installation
- Installer Setup
- Appendices
Table of contents
USER MANUAL THERMO
Installation
Installation tips
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
Pre-installation checklist
Package contents
Check to make sure your package includes the following items:
• PRO TH3110D 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)
Wallplate installation
Remove the wallplate from the thermostat as shown at left, then follow directions below for mounting.
- Pull wires through wire hole.
- Position wallplate on wall, level and mark hole positions with pencil.
- Drill holes at marked positions as shown below, then tap in supplied wall anchors.
- Place wallplate over anchors, insert and tighten mounting screws.
Wiring
CAUTION: ELECTRICAL HAZARD. Can cause electrical shock or equipment damage. Disconnect power before wiring.
NOTES
R & Rc terminals
In single-transformer system, leave metal jumper in place between R & Rc. Remove metal jumper if two-transformer system.
Heat pump systems
If wiring to a heat pump, use a small piece of wire (not supplied) to connect terminals W and Y.
C terminal
The C (common wire) terminal is optional when thermostat is powered by batteries.
Wire specifications
Use 18- to 22-gauge thermostat wire. Shielded cable is not required.
Wiring
- Loosen screw terminals, insert wires into terminal block, then retighten screws.
- Push excess wire back into the wall opening. Keep wires in shaded area as shown at left.
- Plug the wall opening with nonflammable insulation to prevent drafts from affecting thermostat operation.
Terminal Designations
W. Heat relay.
Y. Compressor contactor.
G. Fan relay.
O. Heat pump changeover valve energized in cooling.
Rc. Cooling power. Connect to secondary side of cooling system transformer.
R. Heating power. Connect to secondary side of heating system transformer.
B. Heat pump changeover valve energized in heating.
C. Common wire from secondary side of cooling system transformer.
Wiring diagrams
1 Power supply. Provide disconnect means and overload protection as required.
2 Factory-installed jumper. Remove for 2-transformer systems only.
3 Use either O or B terminals for changeover valve.
4 Use a small piece of wire (not supplied) to connect W and Y terminals.
5 Set fan operation switch to Heat Pump (see page 6) and configure for heat pump (see pg. 8).
6 Optional 24 VAC common connection.
Installer Setup
Fan operation settings
- Gas or Oil: For gas or oil heating systems, leave the fan operation switch in this factory-set position (This setting is for systems that control the fan in a call for heat.)
- Electric or Heat Pump: Change the switch to this setting for heat pump or electric heat systems. (This setting is for systems that allow the thermostat to control the fan in a call for heat, if a fan wire is connected to the G terminal.)
Power options & mounting
AC Power
The thermostat can be powered by 24 VAC power, or by batteries. To wire the thermostat for AC power, connect the common side of the cooling transformer to the “C” terminal as shown at left.
Important: Remove R/Rc jumper for 2-transformer systems only. (See wiring diagram on page 5.)
Battery Power
The thermostat can be powered by batteries alone or, if used with AC power, can provide backup power to the display during power interruptions.
To Mount Thermostat
Align the 4 tabs on the wallplate with corresponding slots on the back of the thermostat, then push gently
Installer setup
Follow the procedure below to configure the thermostat to match the installed heating/cooling system, and customize feature operation as desired.
Installer system test
After completing the installer setup above, press the button again to begin a system test
Follow the procedure below to test the heating and cooling system.
- Set SYSTEM switch to Cool.
- Press ▼ to turn on cooling system, then check system status (see table, below).
- Press ▼ to turn off cooling system.
- Set SYSTEM switch to Heat.
- Press ▼ to turn on heating system, then check system status (see table, below).
- Press ▼ to turn off heating system.
- [Optional] Set SYSTEM switch to Off to display thermostat information (see table, below). Press ▼ to display 71-76.
- Press and hold ▼▲ to terminate system test at any time.
| System Test | System Status |
| 10. Heating system | 0 Heat and fan turn off. 1 Heat turns on. Fan also turns on immediately if Fan Operation Switch is set to Electric Heat/Heat Pump (see page 6). |
| 30. Cooling system | 0 Compressor and fan turn off. 1 Compressor and fan turn on. |
| 70. Thermostat information (for reference only) | 71 Software revision number (major revisions) 72 Software revision number (minor revisions) 73 Configuration identification code (major) 74 Configuration identification code (minor) 75 Production configuration date code (week) 76 Production configuration date code (year) |
CAUTION: EQUIPMENT DAMAGE HAZARD
Compressor protection (minimum off time) is bypassed during testing. To prevent equipment damage, avoid cycling the compressor quickly
Appendices
Quick reference to controls
Quick reference to display screen
Built-in compressor protection (Setup Function 15)
This feature helps prevent damage to the compressor in the air conditioning or heat pump system.
Damage can occur if the compressor is restarted too soon after shutdown.This feature forces the compressor to wait for a few minutes before restarting.
During the wait time, the message Cool On (or Heat On if you have a heat pump) will flash on the display.When the safe wait time has elapsed, the message stops flashing and the compressor turns on.
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 | • Check circuit breaker and reset if necessary. • Make sure heating & cooling power switches are on. • Make sure equipment door is securely closed. • If battery powered, make sure fresh AA alkaline batteries are installed |
| Temperature settings do not change | Make sure heating and cooling temperatures are set to acceptable ranges: • Heat: 40° to 90°F (4.5° to 32°C). • Cool: 50° to 99°F (10° to 37°C). |
| Heating system does not respond (“Heat On” appears on screen) | • Check for 24 Vac at the equipment on the secondary side of the transformer between power and common. If voltage is not present, check the heating equipment to find the cause of the problem. • Check for 24 Vac between the heat terminal (W) and the transformer common. If 24 Vac is present, the thermostat is functional. Check the heating equipment to find the cause of the problem. • Check for loose or broken wires between the thermostat and the heating equipment. |
| Cooling system does not respond (“Cool On” appears on screen) | • Check for 24 Vac at the equipment on the secondary side of the transformer between power and common. If voltage is not present, check the cooling equipment to find the cause of the problem • Check for 24 Vac between the cooling terminal (Y) and the transformer common. If 24 Vac is present, the thermostat is functional. Check the cooling system to find the cause of the problem. • Check for loose or broken wires between the thermostat and the cooling equipment. |
| Fan does not turn on in a call for heat | • Make sure the Fan Operation switch is set to the proper system. |
| “Cool On” or “Heat On” is flashing | • Compressor protection timeout is engaged. Wait 5 minutes for the system to restart safely, without damage to the compressor. |
| “Heat On” is not displayed | • Set the System switch to Heat, and set the temperature level above the current room temperature. |
| “Cool On” is not displayed | • Set the System switch to Cool, and set the temperature level below the current room temperature |
See other models: TH5110D1006 HCE200B HZ-7300 HCE200W HCE322V
