Honeywell T8511G- User Manual
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Table of Contents:
- Page 2 – MICROELECTRONIC HEAT PUMP THERMOSTAT; Use a pencil to mark the mounting holes. See; Position the wallplate over the holes, pulling wires; through the wiring opening.; WIRING; CAUTION; Loosen the terminal screws on the wallplate and; prevent drafts from affecting the thermostat.
- Page 3 – Fig. 4. Typical hookup in heat pump system; Mounting Thermostat; Engage tabs at the top of the thermostat and
- Page 4 – and fan key locations.; Temperature Settings; SETTINGS; System and Fan Settings
- Page 5 – INSTALLER SETUP
- Page 7 – INSTALLER SYSTEM-TEST
- Page 8 – Thermostat Information; IMPORTANT
- Page 9 – Press the increase; CHECKOUT; Symptom
- Page 12 – Automation and Control Solutions
X-XX UL
INSTALLATION INSTRUCTIONS
®U.S. Registered Trademark • • All Rights Reserved
Microelectronic
Heat Pump Thermostats
T8511G
APPLICATION
The T8511G Microelectronic Heat Pump Thermostat provides electronic control of 24 Vac, two-stage heating and one-
stage cooling heat pump systems. Refer to Table 1 for a general description of the thermostat. All T8511 Thermostats
require a common wire to supply power.
Table 1. T8511 Thermostat Desription.
MERCURY 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 the old thermostat.
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow
the instructions can damage the product or cause a
hazardous condition.
2. Check the ratings given in the instructions and on
the product to make sure the product is suitable for
your application.
3. Installer must be a trained, experienced service
technician.
4. After completing installation, use these instructions
to check out the product operation.
CAUTION
Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before installation.
Location
Install the thermostat about 5 ft (1.5m) above the floor in
an area with good air circulation at average temperature.
See Fig. 1.
Do not install the thermostat where it can be affected by:
—
drafts, or dead spots behind doors and in corners.
—
hot or cold air from ducts.
—
radiant heat from sun or appliances.
—
concealed pipes and chimneys.
—
unheated (uncooled) areas such as an outside wall
behind the thermostat.
Wallplate Installation
Mount tthermostat horizontally on the wall or on a 2 in. x 4
in. wiring box.
1. Position and level the wallplate (for appearance
only). The thermostat functions properly even when
not level.
T8511
Changeover
System Selection
Fan
Selection
Comments
G
Automatic
Em. Heat-Heat-Off-Auto-Cool
On-Auto
Use keyboard to make system and
fan selections.
69-0961-4
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Other Manuals for Honeywell T8511G
Summary
69-0961—4 2 MICROELECTRONIC HEAT PUMP THERMOSTAT Fig. 1. Typical location of thermostat. 5 FEET [1.5 METERS] YES NO NO NO M10106 Fig. 2. Mounting the wallplate. 2. Use a pencil to mark the mounting holes. See Fig. 2. 3. Remove the wallplate from the wall and drill two 3/16 inch holes in the wall (if...
69-0961—4 3 MICROELECTRONIC HEAT PUMP THERMOSTAT Fig. 3. Typical hookup in heat pump application. Fig. 4. Typical hookup in heat pump system with emergency heat relay. Fig. 5. Typical hookup in heat pump application with emergency heat relay and O/B terminal. Fig. 6. Proper wiring technique. Mountin...
69-0961—4 4 MICROELECTRONIC HEAT PUMP THERMOSTAT Fig. 10. T8511G (automatic changeover) system and fan key locations. NOTE: Always press the system and fan keys with yourfingertip or similar blunt tool. Sharp instrumentslike a pen or pencil point can damage thekeyboard. Temperature Settings The defa...
