Assessments - 2, GPA: 3.5
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DO NOT LET WIRES FALL BACK INTO WALL. 3. Connect wires beneath terminal screws on subbase using appropriate wiring schematic (see figs. 3 through 8). 4. Place subbase over hole in wall and mark mounting hole locations on wall using subbase as a template. (Installation instructions continue on page 5.) TABLE 1. OLD THERMOSTAT IDENTIFICATION OLD THERMOSTAT TYPE OLD THERMOSTAT TERMINAL IDENTIFICATION Type 1 4 W RC Y G Type 2 RH W RC Y G Type 3 M H V C F Type 4 R5 4 Y6 G Type 5 R W Y G TABLE 2. WIRE IDENTIFICATION LABELS Type 1 New Old RH 4 New Old W W New Old RC RC New Old Y Y New Old G G Type 2 New Old RH RH New Old W W New Old RC RC New Old Y Y New Old G G Type 3 New Old RH M New Old W H New Old RC V New Old Y C New Old G F Type 4 New Old RH R5 New Old W 4 New Old Y Y6 New Old G G Type 5 New Old RH R New Old W W New Old Y Y New Old G G PULL STRAIGHT OUT Figure 2. Removing thermostat from subbase Expansion G RC Mounting Hole Pull wires through this opening Connect wires under terminal screws Mounting Hole 6-pin Connector 3-pin Connector Y W Plugs Activity Light RH Figure 3. Subbase NOTE CAUTION! NOTE CAUTION! All wiring diagrams are for typical systems only. Refer to To prevent electrical shock and/or equipment equipment manufacturers' instructions for specific sys-damage, disconnect electrical power at the main tem wiring information. fuse box or circuit breaker until installation is complete. From heating system RHY 24vAC 120vAC Hot Neutral THERMOSTAT SYSTEM G W Heating System RC G RC Y W RH W RH From 24vAC transformer Thermostat Terminal Connections TRANSFORMER Figure 4. Typical Wiring Diagram for Heating Only, 2-Wire, Single Transformer Systems From 24vAC transformer RHY 24vAC 120vAC Hot Neutral THERMOSTAT SYSTEM G W RC Fan Relay Heating System JUMPER WIRE G RC Y W RH W RH G From heating system From fan relay CONNECT red jumper NOTE RED jumper wire (pro- vided with thermostat) must be connected be- tween thermostat's RH and RC terminals for pro- per thermostat operation wire (provided) with this system. TRANSFORMER Thermostat Terminal Connections Figure 5. Typical Wiring Diagram for Heat Only, 3-Wire, Single Transformer Systems From 24vAC transformer RCY 24vAC 120vAC Hot Neutral THERMOSTAT SYSTEM G W Fan Relay Cooling System RH G RC Y W RH G From fan relay From cooling system RC Y TRANSFORMER Thermostat Terminal Connections Figure 6. Typical Wiring Diagram for Cool Only, 3-Wire, Single Transformer Systems From heating system with this system. TRANSFORMER transformer Thermostat Terminal Connections Figure 7. Typical Wiring Diagram for Heat/Cool, 4-Wire, Single Transformer Systems RHY 24vAC 120vAC Hot Neutral THERMOSTAT SYSTEM G W Cooling System Fan Relay Heating System RC JUMPER WIRE G RC Y W RH G From 24vAC From fan relay From cooling system Y CONNECT red jumper wire (provided) W RH NOTE RED jumper wire (pro- vided with thermostat) must be connected be- tween thermostat's RH and RC terminals for pro- per thermostat operation From heating system From 24vAC W RC G Y From fan relay heating transformer RHY 24vAC 120vAC Hot Neutral THERMOSTAT SYSTEM G W HEATING TRANSFORMER 24vAC 120vAC Hot Cooling System Fan Relay Heating System RC RH cooling transformer From cooling system From 24vAC RH W RC G Y Neutral COOLING TRANSFORMER Thermostat Terminal Connections Figure 8. Typical Wiring Diagram for Heat/Cool, 5-Wire, Two-Transformer System 5. Move subbase out of the way. Drill mounting holes. 6. Fasten subbase loosely to wall, as shown in fig. 3, using two mounting screws. Place a level against bottom of subbase, adjust until level, and then tighten screws. (Leveling is for appearance only and will not affect thermostat operation.) If you are using existing mounting holes, or if holes drilled are too large and do not allow you to tighten subbase snugly, use plastic expansion plugs to secure subbase. 7. Push excess wire into wall and plug hole with a fire- resistant material (such as fiberglass insulation) to prevent drafts from affecting thermostat operation. ATTACH THERMOSTAT TO SUBBASE IT IS RECOMMENDED THAT YOU PROGRAM THE THERMOSTAT WITH BATTERIES INSTALLED BEFORE ATTACHING ON SUBBASE (see OPERATION GUIDE for programming instructions). CAUTION! POWER TO THERMOSTAT MUST BE OFF BEFORE ATTACHING THERMOSTAT TO WALL. FAILURE TO TURN OFF POWER BEFORE ATTACHING THERMOSTAT MAY CAUSE EQUIPMENT DAMAGE DUE TO RAPID COMPRESSOR CYCLING. To attach thermostat to subbase, line up the plastic snap guides at the bottom of the thermostat and the three connector pins on the thermostat with the connectors near the bottom left section of the subbase (when viewed from the front). Gently pivot the thermostat up until the six pin connectors and the plastic snaps lock into place (see fig. 9). Be gentle when attaching thermostat. If the thermostat does not seem to be attaching to the subbase easily, make sure that the connector pins and plastic snaps are properly aligned, and that excess wire is pushed into the wall. Damage to the thermost...