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TB7220 Ultrastat
Programmable Thermostat
PRODUCT DATA
FEATURES
• Large, clear display with backlight shows the current
and set temperature and time—even in the dark.
• Menu-driven programming make setup effortless.
• Beautiful ergonomic design is smart and sophisticated
to match your customers’ lifestyle.
• Real-time clock keeps time during power failures and
automatically updates to daylight savings.
• “Saving Changes” notification lets you know when the
schedule changes have been saved.
•
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT Table 3. Energy-saving Default Program Settings. SPECIFICATIONS Setpoints Schedule Thermostat Description: See Table 1. Period Time Heat Cool Occ1 8:00am 70°F (21°C) 75°F (24°C) Electrical Ratings: See Table 2. Unocc1 10:00pm 55°F (10°C) 85°F (29.5°C) Temperature: Occ2 — — — Ratings: Unocc2 — — — Operating Ambient: TB7220: 0°F to 120°F (-18°C to 49°C). C7089U, C7189U: 5% to 95%. Cycle Rates (at 50% Load): Shipping: -30 °F to 150 °F (-34.4°C to 65.6°C). H
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT Calibration (TB7220, C7089U, C7189U, T7770A): No field calibration required. Mounting Means: TB7220: Direct wall-mount using mounting screws and 1 anchors provided. Fits standard vertical or horizontal LEVEL LEVEL 2 in. x 4 in. junction box. C7089U: Mounts outside of living space with mounting clip and 6-7/8 IN. (175 MM) screws provided. C7189U, T7770A: Mounts directly on the wall using mounting screws and anchors provided. Fits a vertical 2 x 4 in.
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT CAUTION Electrical Shock or Equipment Damage Hazard. KNOCKOUTS FOR EUROPEAN APPLICATIONS Can shock individuals or short equipment circuitry. Disconnect power supply before installation. 2-3/8 (60) STANDARD Select Thermostat Location UTILITY 5-1/16 CONDUIT Select a location for the thermostat about 5 ft (1.5m) above the (128) BOX (2 X 4) floor in an area with good air circulation at average MOUNTING HOLES temperature. See Fig. 6. 2-3/8 (60)
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT NOTES: Install Wallplate (See Fig. 8) — Refer to Table 5 for terminal designation Mount the thermostat horizontally on the wall: descriptions. 1. Pull the wires through the wire hole on the wallplate. — See Fig. 12 through 21 for wiring diagrams for 2. Position the wallplate on the wall with the arrow pointing specific equipment applications. up. Level the wallplate for appearance only. 3. Use a pencil to mark the mounting holes. 1. Select set of termi
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT Table 5. Terminal Designation Descriptions. WALLPLATE WIRE Terminal Designation Description Rc Power for cooling—connect to secondary side (see Note 1) of cooling system transformer. R Power for heating—connect to secondary side (see Note 1) of heating system transformer. Y Compressor output. C Common wire from secondary side of cooling (see Note 2) system transformer. W Heat relay. GFan relay. W2 Second stage heat relay. WALL OPENING Y2 Second stage
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT Conventional System Wiring 3 1 W2 C 3 1 C W2 L1 L1 G Y2 (HOT) (HOT) Y2 G Y Y L2 24 VAC 24 VAC W S1 S1 W L2 RC S2 RC S2 2 R 2 R HEAT RELAY OUTDOOR/INDOOR HEAT RELAY TEMPERATURE COMPRESSOR CONTACTOR OUTDOOR/INDOOR SENSOR TEMPERATURE SENSOR FAN RELAY 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD 2 FACTORY INSTALLED JUMPER. PROTECTIO
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT 1 3 3 C W2 W2 C 1 L1 G Y2 L1 G Y2 (HOT) (HOT) Y Y 24 VAC W S1 24 VAC W S1 L2 RC S2 L2 S2 RC 2 COOLING 2 R R TRANSFORMER OUTDOOR/INDOOR FAN RELAY OUTDOOR/INDOOR COOL RELAY 1 COOL RELAY 2 TEMPERATURE TEMPERATURE SENSOR 1 COOL RELAY 1 COOL RELAY 2 SENSOR HEAT RELAY 2 FAN RELAY L1 (HOT) HEAT RELAY 2 HEAT RELAY 1 HEAT RELAY 1 24 VAC L2 HEATING 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND TRANSFORMER OVERLOAD PROTECTION AS RE
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT L1 POWER THE THERMOSTAT (HOT) 3 24 VAC C You can choose from three methods to power the thermostat: W1 L2 G Y2 • Batteries only (AAA alkaline). 1 Y • 24 Vac direct connection only. 4 O/B S1 • 24 Vac direct connection with battery backup (AAA alkaline). RC S2 2 R Wiring 24 Vac Common • Single-Transformer System—Connect the common side of CHANGEOVER VALVE OUTDOOR/INDOOR the transformer to the C screw terminal of the thermostat TEMPERATURE COMP
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT Locate and Mount C7089U Outdoor Wire C7089U Outdoor Sensor Temperature Sensor (Optional) Mount the sensor where (see Fig. 24): CAUTION • cannot tamper with settings. • there is good air circulation. Electrical Interference (Noise) Hazard. • it can measure true outdoor ambient temperature. Can cause erratic system operation. • surface is flat. Keep wiring at least one foot away from large inductive • wire distance between C7089U and thermostat is less th
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT Wire Indoor Sensor SUBBASE S1 S2 CAUTION T7770A1006 Electrical Interference (Noise) Hazard. TT T4 T3 Can cause erratic system operation. Keep wiring at least one foot away from large inductive loads such as motors, line starters, lighting ballasts and 1 large power distribution panels. T7770A3002 T7770A1006 1. Check Installer Setup Number (ISU) 340 to ensure it is set to the desired value. (See Table 6.) TT 2. Wire sensor to S1 and S2 thermostat termin
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT 3. The Setup Number displays to the center of the screen. MONTH YEAR DAY UP AND DOWN It is a four-digit code beginning with zero. The current BUTTONS setting is displayed to the right. CHANGES MONTH, DAY AND NOTE: To cycle through the Setup Numbers, press the up or YEAR Tue down arrow. DeSelect Day FanUseEdit View System & Fan Schedule Clock & More DONE BUTTON ADVANCES TO TIME SETTING Tue SCREEN AM GO BACK BUTTON NEXT BUTTON GOES BA
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT INSTALLER SETUP NUMBERS (ISU), SETTINGS, AND TESTS (TABLE 6) Use the Installer System Test to test the heating, cooling and IMPORTANT fan. Refer to the latter portion of Table 6. Use Installer System Test to test heating, cooling and fan. The setting chosen for System Type (ISU 0170) can prevent some System Test Numbers from appearing. CAUTION Equipment Damage Hazard. NOTE: Unless otherwise noted, setup items are accessible Minimum compressor off time
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT Table 6. Installer Setup Menu. (Continued) Installer Setup Installer Setup Default Number Name Setting All Settings Notes 0270 CPH for Auxiliary 9 1-12 Only shown if multi-stage heat pump is selected (heat Heat pump with more heat than cool stages). 0280 Continuous 0 0—No Always shown. If AC power not present the option is Backlight 1—Yes overridden and normal backlight operation occurs. 0300 Changeover 1 0—Manual Only shown if system has both heat an
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT Table 6. Installer Setup Menu. (Continued) Installer Setup Installer Setup Default Number Name Setting All Settings Notes a Clock Format 12 12—12 Hour 0640 24—24 Hour 0650 Extended Fan 00—Off Not displayed with fan set to fossil or with cool-only On time Heat 90—90 seconds systems 0660 Extended Fan 00—Off Only shown if system has cool stages. On time Cool 40—40 seconds 0670 Keypad Lockout 0 0—Unlocked Unlocked: All functions accessible. 1—Partial Locko
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT MAIN SCREEN PROGRAMMING Table 7 shows default program settings. DOWN BUTTON Table 7. Energy-saving Default Program Settings. LOWERS TEMPERATURE SETTING OR MAKES SELECTIONS IN OTHER SCREENS Setpoints Schedule UP ARROW BUTTON Period Time Heat Cool RAISES TEMPERATURE SETTING OR MAKES SELECTIONS IN OTHER SCREENS Occ1 8:00am 70°F (21°C) 75°F (24°C) Unocc1 10:00pm 55°F (10°C) 85°F (29.5°C) Occ2 — — — Unocc2 — — — Set To Fan Settings System Fan Auto C
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT OPERATION Setting Temperature Overrides There are three temperature override options: Mon Tue — Hold Temperature Until Wed Thu Fri — Override, and Sat Sun —Holiday. Select Day Next Step Cancel HOLD TEMPERATURE UNTIL Holds the temperature temporarily until the time set by the user, or the next scheduled period time. 1. Press the Up or Down arrow next to the temperature to adjust. The Hold Until time appears on the screen. The time defau
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT NOTES: — If batteries are not replaced when the Low Battery WALLPLATE TERMINAL SCREW BLOCK warning is flashing, the LO batt screen displays continuously and the thermostat stops operating until batteries are replaced. — The thermostat has a low battery indicator. PINS ON However, it is recommended that the batteries be BACK OF replaced once each year. Do this to prevent THERMOSTAT leakage and prevent the thermostat and HVAC system from shutting
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT Partially Locked Screen Minimum-Off Timer Compressor Protection When partially locked: The thermostat has an adjustable Minimum-Off Timer that can — Pressing a locked key prompts the screen to indicate be set from zero to five minutes (Factory Setting—five SCREEN LOCKED for five to seven seconds. minutes). The Minimum-Off Timer can be bypassed through — Pressing an unlocked key with SCREEN LOCKED active the Installer System Test or it can be bypassed
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TB7220 ULTRASTAT PROGRAMMABLE THERMOSTAT Table 9. Sequence of Operation for Heat Pump Systems. System Fan Energize Screen COMPRESSOR ONLY AUXILIARY Setting Setting Call for Action Terminals Message 50 LOCKOUT a Off Auto — — TEMPERATURE O/B BOTH COMPRESSOR AND Cool AUXILIARY HEAT COMPRESSOR a 35 LOCKOUT Cool Auto Stage 1 Cooling Cool On Y, G, O/B TEMPERATURE or Auto AUXILIARY ONLY b Stages 1 and 2 Y, Y2 , G, M19950 Cooling a O/B Fig. 41. Heat Pump Operation with Lockout a Heat Auto None — O/
