Table of Contents
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E055-71520325
E055-71520330
2 or 4 pipe systems
7-Day Programmable
Fan Coil Thermostat
Owner's Manual
& Installation
Instructions
Wi-Fi Enabled
•
Mobile app and website
•
for easy remote control
Switchable,
•
non-programmable or
7 day programmable
2 or 4 pipe configurable,
•
3 speed fan control
Retrofit wall plate
•
included
Auto-Changeover
•
Dry contact for
•
condensate overflow or
occupancy sensors
Dehumidification option
•
Setpoint Limiting and/or
•
total keypad lockout
Override capable
•
Pre-occupancy fan purge
•
CA Title 24 Compliant
•
OpenADR 2.0b Certified
•
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Table of Contents
Related Manuals for IEC E055-71520325
Summary of Contents for IEC E055-71520325
- Page 1 E055-71520325 E055-71520330 Wi-Fi Enabled • Mobile app and website • 2 or 4 pipe systems for easy remote control Switchable, • 7-Day Programmable non-programmable or 7 day programmable 2 or 4 pipe configurable, • Fan Coil Thermostat 3 speed fan control Retrofit wall plate • included Auto-Changeover •...
- Page 2 Operation with noncompliant peripherals or peripherals not recommended by IEC, is likely to result in interference to radio and TV reception. Changes or modifications to the product, not expressly approved by IEC could void the user’s authority to operate the equipment.
- Page 3 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 subject to the following...
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Page 4: Table Of Contents
It is the responsibility of the end user to properly characterize and dispose of all waste materials according to applicable regulatory and legal entities. Where reasonable, safe, and compliant with local regulatory and legal requirements, IEC encourages recyling materials when disposing of its products. - 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: Front Panel
Front Panel Backlit Display Up, Down Buttons Mode Button Fan Button Heat or Cool Indicator Heat = Red, Cool = Green... -
Page 7: Thermostat Backplate
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 low/medium/high fan (open = hot, closed = chilled) chilled water valve (4 pipe) -
Page 8: Wiring Diagrams
ACCDSEN continuous operation (Setup Step #18, page WHITE of the Owner’s Manual) BLACK Thermostat Connect directly to R terminal on backplate 24 volt 24vac water valves IEC relay board * Y2 = 2 Stage Cooling (Optional) Dry Contact... - Page 9 ACCDSEN continuous operation (Setup Step #18, page WHITE of the Owner’s Manual) BLACK Thermostat Connect directly to R terminal on backplate 24 volt 24vac water valves IEC relay board * Y2 = 2 Stage Cooling (Optional) Dry Contact...
- Page 10 Wiring Diagram 2-Pipe, Low Voltage Valves, H2O Changeover Sensor Thermostat If 2-pipe with auxiliary electric heat 24 volt 24vac water valve IEC relay board 0 Changeover Sensor (G100-71520306) (closes below 60˚, opens above 75˚)
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Page 11: Connect To Wi-Fi
Connect to Wi-Fi 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. • 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 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: Display Legend
Display Legend 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. - Page 14 Display Legend Occupied and Unoccupied Icons Indicates the part of the time period program. Fan Icon When FAN and any fan speed bars is on, the fan is in man- ual speed. If the FAN is not on the display, then the FAN is in AUTO mode and will run only when necessary to heat or cool.
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Page 15: Basic Operation
Basic Operation Selecting Your Desired Temperature (adjusting the setpoints) Auto-Changeover Mode Pressing the UP or DOWN 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 Adjust the desired... - Page 16 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. Using the FAN button for OVERRIDE Operation Note: Override operation may ony be used when the thermostat is running a time period schedule/program.
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Page 17: 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 18: Clock
User Setup: Clock Setting the Clock and Day (setup steps 1 & 2) Note: When your thermostat is connected to Skyport Cloud Services, the time and day of the week are controlled by Skyport. There is no local ad- justment, Skyport also adjusts the time for Daylight Savings Time as well. Setup steps 1 and 2 will not appear on thermostat if connected to Skyport. -
Page 19: Enable Programmability
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 “OFF” 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 20: Installer Setup
Installer Setup: Pipe Settings 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 21: Deadbands
Installer Setup: Deadband 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. -
Page 22: Setpoint Limits & Lock Mode
Installer Setup: Setpoint Limits & Lock MODE 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... -
Page 23: Max Override Time
Fan Relay Type (setup step 19) • NORMAL = Conventional 3 speed fan coil system • SPECIAL = IEC Fan Coil using E025-71481103/4 Relay Board Wired Sensor Type (setup step 20) • RETURN, OUTDOOR, SUPPLY = the... -
Page 24: Remote Sensor
Installer Setup Control to Sensor (setup step 21) Select LOCAL to control the thermostat temperature with the internal sensor. Select REMOTE to control the temperature with a remote sensor connected to the RS & R terminals of the thermostat backplate. Pre-Occupancy Fan Purge (setup step 22) -
Page 25: Water Valve Type
Installer Setup Hot Water Valve Type (setup step 23) • NORMAL CLOSED = Default setting, hot water valve does not allow water flow when unpowered • NORMAL OPEN = Hot water valve allows water flow when unpowered Chilled Water Valve Type (setup step 24) •... -
Page 26: Dry Contact
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 27: Skyport Enable And Api Enable
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 28: Locking/Unlocking The Keypad
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 UP and DOWN buttons together, for two seconds. icon will appear on the display, then release the buttons. -
Page 29: Programming A Daily Schedule
Programming a Daily Schedule To enter Time Period Programming screens, Press MODE and hold MODE and UP until the scrolling prompt appears. Press MODE to continue to next step. Select the number of Occupied time periods – Press the UP or DOWN buttons to choose the maximum number (up to 3 maximum) of Occupied time periods in a day. - Page 30 Programming a Daily Schedule (Continued) Adjust the Unoccupied Heat Setpoint – Press the UP or DOWN 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.
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Page 31: 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 deadband (Setup Step 11, page 17). - Page 32 About Advanced Features & Operation: Calibration 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.
- Page 33 About Advanced Features & Operation: Factory Defaults 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.
- Page 34 About Advanced Features & Operation: Factory Defaults (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 35: Advanced Setup Table
MAX OVRRIDE TIME IN HOURS 0 - 4 hrs DISPLAY F/C F, C CONTINUOUS FAN, ON (low) or OFF (auto) On, Off FAN TYPE, ON (IEC) or OFF On, Off WIRED SENSOR TYPE control, monitor control CONTROL TO TEMP SOURCE... - Page 36 15. Payment terms are net thirty (30) days from date of shipment on approved credit. One and one half complete fan coil units built or sold by IEC for twelve (12) months from date of unit start up or eighteen percent (1 1/2%) per month (18% annual rate) may be charged on past due accounts or the highest (18) months from date of shipment (from factory), whichever comes first.
- Page 37 IEC Installation Manual Part Number: |100-9004454 (9/2019) © 2019 International Environmental Corporation (IEC) 5000 W. 1-40 Service Rd. Oklahoma City, OK 73128 P: 405.605.5000 F: 405.605.5001 IOM-410 www.iec-okc.com P/N 88-1352...