EMERSON Humidity Control on Sensi Classic User Guide

Quick Start Guide to Humidity Control on Sensi Classic

Contractor Firmware Update Process

If the Sensi thermostat being installed has not yet received a firmware update over the air, please follow the instructions below:

1. Dial 1-888-605-7131
2. Press 2 in the first menu, indicating that you are professional and Press 3 in the second menu
3. When your call is answered, tell the agent that you are at a customer’s home and need the firmware update pushed for the hum/dehum capabilities. Provide the MAC ID located on the back of the faceplate to the agent.

Installation — Compatibility and Wiring

Configuration-setting Humidification/Dehumidification control Capability

on/off

Using the Feature — Turning Humidification Control On/Off and Setting the

Humidity Setpoint

Frequently Asked Questions

once a Sensi smart thermostat is connected to the internet
Which versions of Sensi thermostats
are compatible with Humidity control?| Sensi Touch (1F95U) and Sensi Classic (1F87U) thermostats are all backward compatible. 1F86U and UP500W models are currently not compatible.
Installation& Configuration| What terminals should I use to
enable humidity control?| Use Y2/ for humidification and W21 for dehumidification
What types of humidifiers and dehumidifiers are supported?| Humidifiers – Any 24VAC humidifier. Currently, Sensi does not support independent (from a call for heat) humidification.
Dehumidifiers – HVAC systems with a dehumidify mode (slowing of the system’s fan speed) or 24VAC dehumidifiers. Currently, Sensi does not support independent (from a call for cool) dehumidification.
Using the Feature| What is an appropriate humidity setpoint?|  Depending on the outdoor temperature, the ideal indoor humidity level is between 30-50% RH. In cold weather, if condensation appears on your windows, lower the humidity setpoint.
What is Overcooling to Dehumidify?| On-air conditioning systems without a dehumidifier, the dehumidification feature I allow Sensi to overcome to a maximum of 3° below the AC setpoint to help control humidity. Systems with de hum terminals on the air handler or wired dehumidifiers on will use those capabilities rather than overcooling.
Why is my system unable to reach
my humidity setpoint?| During extremely cold and dry or hot and humid climates, your humidifier or a dehumidifier may not be able to increase or decrease humidity enough to reach your setpoint depending on the size of your equipment

Quick Start Guide to Humidity Control on Sensi Touch

 Contractor Firmware Update Process

If the Sensi thermostat being installed has not yet received a firmware update over the air, please follow the instructions below:

1. Dial 1-888-605-7131
2. Press 2 in the first menu, indicating that you are professional, and Press 3 in the second menu
3. When your call is answered, tell the agent that you are at a customer’s home and need the firmware update pushed for the hum/dehum capabilities. Provide the MAC ID located on the back of the faceplate to the agent.

Installation – Compatibility and Wiring

Configuration-Setting Humidification/Dehumidification control Capability

on/off

Using the Feature — Turning Humidification Control On/Off and Setting the

Humidity Setpoint

Frequently Asked Questions

once a Sensi smart thermostat is connected to the internet
Which versions of Sensi thermostats
are compatible with Humidity control?| Sensi Touch (1F95U) and Sensi Classic (1F87U) thermostats are all backward compatible. 1F86U and UP500W models are currently not compatible.
Installation& Configuration| What terminals should I use to
enable humidity control?| Use Y2/ for humidification and W21 for dehumidification
What types of humidifiers and dehumidifiers are supported?| Humidifiers – Any 24VAC humidifier. Currently, Sensi does not support independent (from a call for heat) humidification.
Dehumidifiers – HVAC systems with a dehumidify mode (slowing of the system’s fan speed) or 24VAC dehumidifiers. Currently, Sensi does not support independent (from a call for cool) dehumidification.
Using the Feature| What is an appropriate humidity setpoint?|  Depending on the outdoor temperature, the ideal indoor humidity level is between 30-50% RH. In cold weather, if condensation appears on your windows, lower the humidity setpoint.
What is Overcooling to Dehumidify?| On-air conditioning systems without a dehumidifier, the dehumidification feature I allow Sensi to overcome to a maximum of 3° below the AC setpoint to help control humidity. Systems with de hum terminals on the air handler or wired dehumidifiers on will use those capabilities rather than overcooling.
Why is my system unable to reach
my humidity setpoint?| During extremely cold and dry or hot and humid climates, your humidifier or a dehumidifier may not be able to increase or decrease humidity enough to reach your setpoint depending on the size of your equipment.

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