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Summary of Contents for Copeland SENSI SA20
- Page 1 SA20 Equipment Interface Module Installation guide...
- Page 3 Equipment Interface Module is compatible with: • Sensi Touch 2 smart thermostat • Up to 4H/2C multi-stage and heat pump systems. • 3 universal terminals supporting humidification, dehumidification, and ventilation. Indoor/Outdoor Applications Waterproof and durable, the Sensi EIM is made for indoor or outdoor use, again lessening the number of products you need to stock on your truck.
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Page 4: Install Thermostat
1 Install thermostat ACC+ ACC- Turn off power to the HVAC system before installing. Mount the thermostat and install a wire to the C terminal and another wire to either RC or RH terminal of the Sensi Touch 2 smart thermostat or to separate 24 volt transformer (not provided). - Page 5 3 Wire the equipment interface module Remove cover and install the following: • Wires coming from the Thermostat to the R and C terminals (under T-STAT). • Power wires coming from the HVAC system to the C and RC or RH terminals (under 24V).* •...
- Page 6 EIM wiring guide – conventional systems Typical wiring of a conventional system with up to 3-stage heat and 2-stage cool with two transformers. Heat pump changeover, zone panel or 3-wire hot water zone valve connection. (configurable as O, B or 6 in the installer menu) Indoor blower (fan) energized on call for fan, cool or electric heat...
- Page 7 EIM wiring guide — heat pump systems Typical wiring of a heat pump system with up to 4-stage heat and 2-stage cool with one transformer. Heat pump changeover (reversing valve) connection (configure as O or B in the installer menu) Indoor blower (fan) energized on call for fan, cool or heat 2nd stage heat and...
- Page 8 EIM wiring guide — wiring humidification, dehumidification and ventilation U terminals can be used for humidification, dehumidification or ventilation. TYPICAL HOOKUP OF POWERED HUMIDIFIER TYPICAL HOOKUP OF NON-POWERED HUMIDIFIER POWERED NON-POWERED HUMIDIFIER HUMIDIFIER TYPICAL HOOKUP OF POWERED VENTILATION TYPICAL HOOKUP OF NON-POWERED VENTILATION POWERED POWERED VENTILATOR...
- Page 9 4 Connecting the EIM to the Sensi Touch 2 smart thermostat Power back on the HVAC system. When the Touch 2 is powered up, navigate to the menu in the top left corner (four squares) on the screen and select Advanced Setup. Next select EIM. Press the “Add”...
- Page 10 5 Configure additional accessories (humidifier, dehumidifier, ventilation) Go to main menu and select “Advanced Setup”. Next select “HVAC Equipment” then “Configure”. Finally, select “Additional Accessories”. For each accessory wired into the EIM, select the corresponding terminal.
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Page 11: System Testing
System Testing Once the thermostat is installed and properly configured, you can test the equipment using the following steps. COOLING SYSTEM • Mode Cool Press the button on the thermostat and select the position. Press �� and adjust the setting to 1° below the current room temperature. •... -
Page 12: Heating System
HEATING SYSTEM • Mode Heat Press the button on the thermostat and select the position. Press �� on the thermostat and adjust the setting to 1° above the current • room temperature. The heating system should begin to operate and the thermostat temperature display will turn orange indicating heating on the screen. -
Page 13: Fan Operation
FAN OPERATION • If your system does not have a “G” terminal connection, skip to “Heating System” below. • Press the button on the thermostat and select the position. The blower should begin to operate. • Mode Press (oval button on left side) to turn off the system. Then press Auto button on the thermostat and select the position. - Page 14 DEHUMIDIFICATION • Press Menu > Advanced Setup > Dehumidify • Set Dehumidification to On and set the humidity set point lower than the current room humidity. Humidity can be adjusted from 40% to 95% in 5% increments. • Depending on installed equipment, check that the system fan speed has slowed, the dehumidifier is running, or the system cools up to 3°...
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Page 15: Troubleshooting
Troubleshooting SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION Press and hold the RESET button to restart the pairing process. Once the pairing process has EIM Status LED EIM is not connected started, the LED light will be flashing green. Once light solid red pairing process is complete, the LED light will be solid green. - Page 16 SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION Heat, Cool or Fan Possible short in wiring, Check each wire connection to verify they Runs Constantly thermostat, heat, cool or are not shorted or touching other wires. Try fan system resetting the thermostat. Thermostat Thermostat display Display can be adjusted +/-5°...
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Page 17: Specifications
Specifications Control for up to 4 Heat/2 Cool heat pump systems or up to 3 Heat/2 Cool conventional systems. 3 optional accessory terminals for humidification, dehumidification and ventilation. Operating Ambient Temperature Equipment Interface Module: -40 to 165° F (-40 to 74° C) Operating Relative Humidity Equipment Interface Module: 5% to 95% (non-condensing) Physical Dimensions... -
Page 18: Regulatory Information
Regulatory information FCC Regulations This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the manufacturer could void the user’s authority to operate the equipment. - Page 20 0037-7916001 ©2024 Copeland LP.
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