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2 or 4 pipe configurable,
3 speed fan control
Wi-Fi onboard
Switchable, non-programmable
or 7 day programmable
Free mobile app and website
for easy remote control
Setpoint Limiting and/or
total keypad lockout
Auto-Changeover*
Dry contact for condensate
overflow or occupancy sensors
Can control dual chilled water
valves for dehumidification
Override capable
Pre-occupancy fan purge
California Title 24 Compliant
OpenADR 2.0b Certified
THE WORLD LEADER IN FAN COIL SOLUTIONS
* Auto-changeover is available in 4-pipe
systems, in 2-pipe systems with Electric
Heat, or when used with G100-71520306
accessory, auto-changeover sensor.
Digital Thermostat
with Wi-Fi and Local API
Owner's Manual
& Installation
E055-71520325
E055-71520330
2 or 4 pipe system
Fan Coil
Instructions
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Summary of Contents for IEC E055-71520330
- Page 1 E055-71520325 E055-71520330 2 or 4 pipe configurable, 3 speed fan control 2 or 4 pipe system Wi-Fi onboard Fan Coil Switchable, non-programmable Digital Thermostat or 7 day programmable Free mobile app and website for easy remote control with Wi-Fi and Local API...
- Page 2 CAUTION Follow the Installation Instructions before proceeding. Set the thermostat mode to “OFF” prior to changing settings in setup or restoring Factory Defaults. FCC Compliance Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
- Page 3 être choisis afin que la puissance isotrope rayonnée équivalente (PIRE) ne est pas plus de ce qui est nécessaire pour une communication réussie. We, IEC, declare under our sole responsibility that the device to which this declaration relates: Complies with Part 15 of the FCC Rules. Operation is...
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Page 4: Table Of Contents
FIX PAGE NUMBERS Table of Contents Installation Instructions .................1 Wire Connections ....................2 Thermostat Backplate ..................3 Connect to Wi-Fi ....................10 Front Panel ......................13 Display ......................14 Basic Operation .....................16 User Setup.......................17 Backlight Operation ................19 Setpoint Limits ..................20 Installer Setup ....................22 Programming a Daily Schedule ..............29 About Advanced Features &... - Page 5 Glossary of Terms Auto-Changeover: A mode in which the thermostat will turn on the heating or cooling based on room temperature demand. Cool Setpoint: The warmest temperature that the space should rise to before cooling is turned on (without regard to deadband). Deadband: The number of degrees the thermostat will wait, once a setpoint has been reached, before energizing heating or cooling.
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Page 6: Installation Instructions
Installation Instructions The Thermostat Backplate To remove the thermostat backplate: Gently separate the display from the base by pulling from the center. 24 VAC return hot water valve (4 pipe) or strip heat (2 pipe) 24 VAC common 2 pipe water temp sensor G , G2, G3 first/second/third stage fan (open = hot, closed = chilled) - Page 7 Installation Instructions Dip Switch The Dip Switch has no function in this thermostat.
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Page 8: Wiring Diagram
Installation Instructions Wiring Diagram IMPORTANT NOTE: 4-Pipe, Low Voltage Valves, Duct If a duct sensor is connected to this thermostat it is Temperature Sensor & Dry Contact suggested that the fan be programmed for continuous Duct Sensor operation (Setup Step #18, ACCDSEN page of the Owner’s... - Page 9 Installation Instructions Wiring Diagram 2-Pipe, Low Voltage Valve, H20 Changeover Sensor Thermostat If 2-pipe with auxiliary electric heat 24 volt 24vac water valve Generic relay board 0 Changeover Sensor (G100-71520306) (closes below 60˚, opens above 75˚)
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Page 10: Connect To Wi-Fi
Skyport account setup). 3. A 6-digit code obtained from the thermostat is successfully entered into a Skyport account. 4. Successfully download and install the IEC Skyport app on your mobile device(s). Your thermostat operates on the 2.4 Ghz, Wi-Fi b/g/n band. - Page 11 Connect to Wi-Fi Overview Wi-Fi Setup The IEC Configurator App is needed to configure the Wi-Fi Settings of this thermostat • Download the IEC Configurator App from your mobile device’s App Store. ICON • Open the IEC Configurator App - Choose the thermostat by sliding the thermostat pictures at the top of the apps’...
- Page 12 Connect to Wi-Fi Overview Join a Thermostat to Skyport If the thermostat is connected to the local Wi-Fi access point but not yet joined to an existing Skyport account, you may join the thermostat to the account by doing the following: 1.
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Page 13: Front Panel
Front Panel 1 Backlit Display 2 Up/Warmer, Down/Cooler Buttons 3 Mode Button 4 Fan Button 5 Heat or Cool Indicator Heat = Red, Cool = Green... -
Page 14: Display
Display Mode Indicators Selects the operational mode of the equipment. HEAT - Indicates the heating mode. COOL - Indicates the cooling mode. AUTO - Indicates the system will automatically changeover between heat and cool modes as the temperature varies. OFF - Indicates heating and cooling are turned off. Clock with Day of the Week Indicates the current time and day. - Page 15 Display 5 Occupied and Unoccupied icons Indicates the part of the time period program. 6 Setup icon Indicates the thermostat is in the setup mode. 7 Fan icon When FAN and any fan speed bar is on, the fan is in manual speed.
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Page 16: Basic Operation
Basic Operation Selecting Your Desired Temperature (adjusting the setpoints) Auto-Changeover Mode Pressing the WARMER or COOLER buttons in Auto mode will adjust both the heat and cool setpoints simultaneously. To adjust the heat and cool setpoints individually, choose HEAT mode to adjust the heat setpoint, and COOL mode to adjust the cool setpoint, then return to AUTO mode. - Page 17 Basic Operation Using the FAN button for Fan Operation Press Press Press Press low speed medium speed high speed auto Note: When the thermostat is placed in OFF with the MODE button the fan will not operate, unless Setup Step #18 is set to ON (page 19). Using the FAN button for OVERRIDE OPERATION Note: Override operation may only be used when the thermostat is run- ning a time period schedule/program.
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Page 18: User Setup
User Setup TO ENTER MENUS BUTTON PRESS Setup Steps MODE & FAN for 5 seconds Table for button Time Schedule MODE & UP for 2 seconds presses that are Emergency Heat UP & FAN for 2 seconds required for Lockout Buttons MODE, UP &... - Page 19 User Setup Setting the Clock and Day (setup steps 1 & 2) When your thermostat is connected to Skyport Cloud Services, the time and day of the week are controlled by Skyport. There is no local adjust- ment, Skyport also adjusts the time for Daylight Savings Time as well. To set the time and day when not connected to Skyport;...
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Page 20: Backlight Operation
User Setup: Backlight Operation Programmable (setup step 4) When the very simplest operation is desired, this thermostat may be configured to be non- programmable, with or without Auto-Changeover. If “NO” is selected, the thermostat will lockout the Program On screen; only the Off, Heat, Cool and Auto screens may be accessed by pressing the MODE button. - Page 21 User Setup: Number of Pipes 2 or 4 Pipe System (setup step 9) Select Fan Coil System type: • 2 Pipe Fan Coil System, or • 4 pipe Fan Coil System. 2 Pipe System Operation (setup step 10) Setup Step 10 only appears if Setup Step 9 = 2 pipe •...
- Page 22 User Setup: Deadband & Setpoint Limits Deadband The Deadband is the number of degrees or minutes that the thermostat waits before it initiates the stages of heating or cooling. 1st Stage Deadband (setup step 11) Specifies the temperature difference between the room temperature and the desired setpoint before the first stage of heating or cooling is allowed to turn on.
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Page 23: Setpoint Limits
Installer Setup Setpoint Limits (setup step 13) When this feature is set to ON, the Heat and Cool Setpoints may be restricted to preset levels in Setup Steps 14 and 15. Maximum Heat Setpoint (setup step 14) Minimum Cool Setpoint (setup step 15) Lock MODE Buttons This feature is available when the thermostat is connected to Skyport Cloud Services and may only be accessed through Skyport. - Page 24 Fan Relay Type (setup step 19) • Normal = Conventional 3 speed fan coil system • Special = Carrier or IEC Fan Coil using a 33ZCRLYBRD Relay Board Wired Sensor Type (setup step 20) RETURN, OUTDOOR, SUPPLY = the sensor...
- Page 25 Installer Setup Control to Sensor (setup step 21) Select LOCAL to control to the temperature sensor inside the thermostat. Select REMOTE to control to a temperature sensor connected to the RS & R terminals of the thermostat backplate. Pre-Occupancy Fan Purge (setup step 22) When this feature is activated, the fan will turn on during an unoccupied period at a preset amount of time prior to Occupied 1.
- Page 26 Installer Setup Hot Water Valve Type (setup step 23) NORMAL CLOSED = Usual setting, hot water valve does not allow water flow when unpowered NORMAL OPEN = Hot water valve allows water flow when unpowered Options, NORMALLY OPEN and NORMALLY CLOSED, default = NORMALLY CLOSED.
- Page 27 Installer Setup Dry Contact Operation Dry Contact Polarity (setup step 25) Open (Normally Open) - The dry contact is open until the connected device closes the circuit. ‘Idle’ ‘Active’ ‘Idle’ ‘Active’ Closed (Normally Closed) - The dry contact is closed until the connected device opens the circuit. ’...
- Page 28 Installer Setup Skyport Cloud Services (setup step 27) If set to ON, the thermostat may communicate and receive data from the Skyport Cloud Services. Local API (setup step 28) Turning on the local API allows 3rd party software to interface with the thermostat such as a home automation system.
- Page 29 Installar Setup Locking/Unlocking the Keypad To prevent unauthorized use of the thermostat, the front panel buttons may be disabled. To disable, or ‘lock’ the keypad, press and hold the MODE button. While holding the MODE button, press the WARMER and COOLER buttons together, for two seconds.
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Page 30: Programming A Daily Schedule
Programming a Daily Schedule Programming a Daily Schedule MODE To enter Time Period Programming screens, Press and hold MODE and UP until the scrolling prompt appears. Select the number of Occupied time periods – Press the Warmer or Cooler buttons to choose the maximum number (up to 3 maximum) of Occupied time periods in a day. - Page 31 Programming a Daily Schedule Continued Adjust the Unoccupied Heat Setpoint – Press the Warmer or Cooler button to adjust the Heating setpoint for times when the thermostat is in Unoccupied. The following steps determine when the Occupied period(s) will be active. Enable Occupied 1 –...
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Page 32: About Advanced Features & Operation
About Advanced Features & Operation DEADBAND OPERATION - Controls one Heat and one Cool stage with a three speed fan (see below). The low speed fan for heat or cool is turned on when: The temperature spread from the setpoint is equal to or greater than: the setpoint plus the 1st stage dead-band (Setup Step 11, page 17). - Page 33 About Advanced Features & Operation Calibration Under normal circumstances it will not be necessary to adjust the calibration of the temperature sensor. If calibration is required, please contact a trained HVAC technician to correctly perform the following procedure. MODE Place the thermostat in the OFF mode. Press and hold the MODE button.
- Page 34 About Advanced Features & Operation Factory Defaults If, for any reason, you desire to return all the stored settings back to the factory default settings, follow the instructions below. WARNING: This will reset all Time Period and Advanced Programming to the default settings. Any information entered prior to this reset will be permanently lost.
- Page 35 About Advanced Features & Operation (Continued) You now have the option of restoring the factory settings to just Wi-Fi (Wi-Fi), or just the thermostat (STAT), or both the thermostat and Wi-Fi (ALL). C. Select one of the above options using the Up or Down buttons.
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Page 36: Advanced Setup Table
Advanced Setup Table FD = Factory Default Setting Step# Description Pg# Range CLOCK 12A - 12A WEEKDAY Monday - Sunday Monday SHOW CLOCK On, Off PROG On, Off BACKLIGHT On, Off NIGHTLT On, Off NIGHTLT START 12A - 12A 8:00P NIGHTLT STOP 12A - 12A 6:00A... - Page 37 Warranty One-Year Warranty - This Product is warranted to be free from defects in material and workmanship. If it appears within one year from the date of original installation, whether or not actual use begins on that date, that the product does not meet this warranty, a new or remanufactured part, at the manufacturer’s sole option to replace any defective part, will be provided without charge for the part itself provided the defective part is returned to the distributor through a qualified servicing dealer.
- Page 38 P/N 88-1352 08/12/19...
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