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Table 1. Description of T8511 Thermostat. Model Application Powering Method Changeover System Selection Fan Selection T8511G Zone 1 on MABS II or TotalZone® system Requires common wire to power supply Automatic or Manual Em Heat-Heat-Off- Cool-Auto On-Auto RECYCLING NOTICE If this control is replacing a control that contains mercury in a sealed tube, do notplace 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. 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 The thermostat can be mounted horizontally on the wall or on a 2 in. x 4 in. wiring box. Position wallplate 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 will function properly even when not level. 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 drywall) as marked. For firmer material such as plaster, drill two 7/32 inch holes. Gently tap anchors (provided) into the drilled holes until flush with the wall. 4. Position the wallplate over the holes, pulling wires through the wiring opening. 5. Loosely insert the mounting screws into the holes. 6. Tighten mounting screws. ®U.S. Registered Trademark Copyright © 1997 Honeywell Inc. • • All Rights Reserved 69-1052-1 T8511G DELUXE HEAT PUMP ZONE THERMOSTAT 5 FEET [1.5 METERS] YES NO NO NO M10106 T8511G DELUXE HEAT PUMP ZONE THERMOSTAT 5 FEET [1.5 METERS] YES NO NO NO M10106 Fig. 1. Typical location of thermostat. Wiring WALL All wiring must comply with local electrical codes and ordinances. Refer to Fig. 3 and 4 for typical hookups. A letter code is located near each terminal for identification. WIRES THROUGH WALL MOUNTING HOLES MOUNTING SCREWS M6530 WALL ANCHORS (2) CAUTION Disconnect power before wiring to prevent electrical shock or equipment damage. 1. Loosen the terminal screws on the wallplate and connect the system wires. See Fig. 5. IMPORTANT Use 18 gauge, color-coded thermostat cable for proper wiring. 2. Securely tighten each terminal screw. 3. Push excess wire back into the hole. 4. Plug the hole with nonflammable insulation to prevent drafts from affecting the thermostat. Fig. 2. Mounting the wallplate. 69-1052—1 2 T8511G DELUXE HEAT PUMP ZONE THERMOSTAT T8511G DELUXE HEAT PUMP ZONE THERMOSTAT O G B L C R Y E W2 OT OT O1 T8 G1 T7 B1 T6 E1 T5 T4 THERMOSTAT ZONE 1 CHANGEOVER CONTROL M12188 M1 Fig. 3. Typical wiring diagram for T8511G with zone 1 MABS II control panel. Fig. 4. Typical wiring diagram for T8511G with zone 1 TotalZone® control panel. B E L G Y R O W2 C OT W2 L G Y R W M6 M4 M1 OT THERMOSTAT TotalZone® PANEL THERMOSTAT CONNECTIONS OUTDOOR TEMPERATURE SENSOR (OPTIONAL) M12189 1 WHEN USING W2 ON THE THERMOSTAT TO CONTROL THE SECOND STAGE OF HEATING, BE SURE THE STAGE JUMPER IS IN PLACE ON THE TZ PANEL. 1 FOR WRAPAROUND FOR STRAIGHT INSERTION STRIP 5/16 IN. (8 MM). INSERTION STRIP 7/16 IN. (11 MM). M4826 Fig. 5. Proper wiring technique. Mounting Thermostat 1. Engage tabs at the top of the thermostat and wallplate. See Fig. 6. 2. Press lower edge of case to close and latch. NOTE: To remove the thermostat from the wall, first pull out at the bottom of the thermostat; remove top last. A. ENGAGE TABS AT TOP OF THERMOSTAT AND WALLPLATE. B. PRESS LOWER EDGE OF CASE TO LATCH. M6798A Fig. 6. Mounting thermostat on wallplate. Using Thermostat Keys The thermostat keys are used to: • set temperature, •display present setting, • configure Installer Setup, • check System-Test, •display outdoor temperature (select models), • set the system operation, • set the fan operation. See Fig. 7 for the location of the keys. i INCREASE TEMPERATURE SETTING DECREASE TEMPERATURE SETTING DISPLAY PRESENT SETTINGS AND SCROLL THROUGH INSTALLER SETUP MODES (INFORMATION KEY) M6801 Fig. 7. Key locations and descriptions. 3 69-1052—1 T8511G DELUXE HEAT PUMP ZONE THERMOSTAT T8511G DELUXE HEAT PUMP ZONE THERMOSTAT System and Fan Settings System settings control the thermostat operation as follows: Em Heat: ...