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OWNER'S MANUAL
72
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.
Environmental Corp. All Rights Reserved
FAN COIL
NON-PROGRAMMABLE
DIGITAL THERMOSTAT
74
C
OOL
AUTO
H
70
EAT
Copyright 2008, International
P/N E055-71520301
P/N E055-71520304
2- or 4-pipe configurable
Dual or Single Setpoint
Very easy to program
Large, easy to read display
Thermoglow
No batteries required
Auto-Changeover
Locking Keypad
Backlight
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Summary of Contents for IEC E055-71520301
- Page 1 P/N E055-71520301 OWNER'S MANUAL P/N E055-71520304 FAN COIL NON-PROGRAMMABLE DIGITAL THERMOSTAT 2- or 4-pipe configurable Dual or Single Setpoint Very easy to program Large, easy to read display AUTO Thermoglow Backlight No batteries required Auto-Changeover Locking Keypad Auto-Changeover is available in 4-pipe systems,...
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Page 3: Table Of Contents
& OPERATION WARRANTY Follow Installation Instructions CAUTION carefully. Disconnect Power to the Heater/Air Conditioner before removing the old therm- WARNING ostat and installing the new thermostat. P/N E055-71520301 and P/N E055-71520304 Copyright 2007, International Environmental Corp. All Rights Reserved Page 1... -
Page 4: Front Panel
Front Panel AUTO Liquid Crystal Display with Thermoglow Up/Down Buttons Mode Button Fan/Override Button Heat or Cool Indicator Heat = Red, Cool = Green Page 2... -
Page 5: Display
Display unoccupied UTSIDE Mode Indicators - Page 5-8 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. - Page 6 Display unoccupied UTSIDE icon - Page 9 Indicates fan operation. = low speed = medium speed = high speed When only the Fan icon is displayed, the fan is in the Auto mode and will run only when necessary to heat or cool.
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Page 7: Selecting The Heat Or Cool Mode
Selecting the Heat or Cool Mode 4-Pipe Operation Select Mode by Pressing the MODE Button Heating Only The HEAT setting indicates the temperature the room has to reach before the heating source will turn on to heat the room. Press MODE Cooling Only The COOL setting indicates... - Page 8 Selecting the Heat or Cool Mode 2-Pipe Operation Heat Only Step #4 = 1 in the Advanced Setup section, page 11. Heating Only The HEAT setting indicates the temperature the room has to reach before the heating source will turn on to heat the room.
- Page 9 Selecting the Heat or Cool Mode 2-Pipe Operation Cool Only Step #4 = 2 in the Advanced Setup section, page 11. Cooling Only The COOL setting indicates the temperature the room has to reach before the cooling source will turn on to cool the room.
- Page 10 Selecting the Heat or Cool Mode 2-Pipe Operation Heating and/or Cooling Step #4 = 3 in Advanced Setup (page 11), and the accessory changeover sensor (G100-71520306) is used. Step #4 = 4 or 5 in Advanced Setup (page 11). Operation is the same as a 4-pipe system (page 5). HEAT indicates the temperature the room has to reach before the heating source energizes.
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Page 11: Basic Operation
Basic Operation Selecting Your Desired Temperature (adjusting the setpoints) AUTO OR PROGRAM MODE Pressing the UP or DOWN button in Auto or Program mode will adjust both the heat and cool set temperatures simultaneously. Adjust the desired set temperature with the AUTO buttons. -
Page 12: Advanced Setup
Advanced Setup NOTE: Each step Press the MODE and MODE # is located at the FAN buttons at the top right corner of same time for 10 the display for easy seconds to enter reference. A d v a n c e d S e t u p screens. - Page 13 Advanced Setup Select fan coil system Setup type: 2 = 2-pipe fan coil 4 = 4-pipe fan coil Step #4 only appears if step #3 = 2. Press 2-PIPE SYSTEM OPERATION MODE 1= Heat only system 2= Cool only system Setup 3= Heat/Cool Auto changeover...
- Page 14 Advanced Setup Adjust the deadband Setup for the 1st stage. (1 - 6 ) See Page 17 Press Step #7 will not appear if step #4 = 1 or 2. MODE Adjust the minimum Setup difference between cooling & heating setpoints.
- Page 15 Advanced Setup Setup Select sensor operation: On = read only outside or duct sensor UTSIDE Off = control to remote room sensor Setup Dry Contact NO = Normally Open NC = Normally Closed See Page 18 Press MODE Unoccupied Setpoints Select Dry Contact Setup unoccupied...
- Page 16 Advanced Setup Adjust the heating set- unoccupied point for Unoccupied periods. (OF, 35 - 99 ) After programming is complete, press the MODE and FAN buttons at the same time for two seconds to leave the Setup screens. If no buttons are pressed, the display will leave the setup screens after 30 seconds.
- Page 17 Advanced Setup Advanced Setup Table Step Factory Description Range Default Display Blanking On / Off Single or Dual Setpoint 1 / 2 2-or 4-Pipe System 2 / 4 2-Pipe System Operation 1 - 5 On / Off Fan Auto Operation Deadband/Temp.
- Page 18 Advanced Setup Advanced Setup Table Step Factory Description Range Default Display Blanking On / Off Single or Dual Setpoint 1 / 2 2-or 4-Pipe System 2 / 4 2-Pipe System Operation 1 - 5 On / Off Fan Auto Operation Deadband/Temp.
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Page 19: About Advanced Features
About Advanced Features & Operation DEADBAND OPERATION - Contro ls one Heat and one Cool stage with a thre e speed fan (s ee 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 (step #6, page 12). - Page 20 About Advanced Features & Operation DRY CONTACT SWITCH - This feature allows an ex- ternal device such as a Central Time Clock, Occup- ancy Sensor, or a Telephone activated device to force one or more thermostats into an Unoccupied mode (steps #11 and 12, page 13).
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Page 21: Operation
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 Advanced Program- ming to the default settings. Any information entered prior to this reset will be permanently lost. - Page 22 About Advanced Features & Operation FAN OPERATION - Fan operation is available in four different modes: Fan: When only the fan icon is displayed, this indicates that the fan is in the Auto mode, will only energize during a heating or cooling cycle, and will modulate fan speeds based on temperature demand (see page 17).
- Page 23 About Advanced Features & Operation HEAT/COOL DIFFERENTIAL - The Heat and Cool set- points will not be allowed to come any closer to each other than the value set in Advanced Setup step #7, on page 12. This minimum difference is enforced during Auto-changeover operation.
- Page 24 About Advanced Features & Operation LOCKING COVER w/Tamper Proof Screws (G100-71520308 w/ logo G100-71520309 w/out logo) AUTO AUTO OUTSIDE SENSOR - To view an Outside Sensor (step #10, page 13), press and hold the FAN button for two seconds until the Outside icon appears. If an optional outside sensor is connected, the outside temperature will appear on the display.
- Page 25 About Advanced Features & Operation REMOTE SENSOR (P/N G100-71520307) - The thermostat is programmed from the factory to auto- matically recognize when a Remote Sensor is connected (step #10, page 13). OVER The Remote Sensor measures indoor RIDE air temperature and sends this infor- mation to the thermostat;...
- Page 26 About Advanced Features & Operation SINGLE SETPOINT BEHAVIOR - When configured for Single Setpoint operation (step #2, page 10), the degree icon will blink when the large number is display- ing room temperature and will remain solid when dis- playing the heating or cooling setpoint. In the Auto mode the deadband is enforced both above and below the setpoint.
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Page 27: Warranty
PURCHASER. ALL PRICES ARE F.O.B. IEC'S FACTORY WITH FULL FREIGHT ALLOWED UNLESS NOTED OTHERWISE BY IEC. TITLE TO AND RISK OF LOSS TO THE GOODS PASSES TO THE PURCHASER WHEN DELIVERED TO THE CARRIER F.O.B. IEC'S SHIPPING POINT. PURCHASER MUST INSPECT THE GOODS UPON ARRIVAL. - Page 28 (c.) IN THE EVENT OF A BREACH OF THE ABOVE WARRANTY OR NEGLIGENCE ON THE PART OF IEC, IEC SHALL ONLY BE OBLIGATED TO EITHER REPAIR OR REPLACE, AT IEC'S OPTION, THE GOODS, AND THE AFORESAID OBLIGATION OF IEC TO REPAIR OR REPLACE THE GOODS IS THE PURCHASER'S EXCLUSIVE REMEDY.
- Page 29 MAY BE LEVIED BY ANY TAXING AUTHORITY AS A RESULT OF THIS TRANSACTION SHALL BE PAID BY THE PURCHASER. 10. UNLESS OTHERWISE AGREED TO IN WRITING BY IEC, ANY TECHNICAL DATA, FURNISHED IN CONJUNCTION WITH THIS ORDER AND NOT OBTAINABLE FROM ANOTHER SOURCE SHALL NOT BE DUPLICATED, USED, OR DISCLOSED IN WHOLE OR IN PART FOR ANY PURPOSE OTHER THAN TO EVALUATE THIS ORDER.
- Page 30 REPRESENTATIVE OF IEC IN OKLAHOMA CITY, OKLAHOMA. P/N 88-571 I100-90006969 Rev. 1 P.O. Box 2598 • Oklahoma City, OK 73101-2598 • 405.605.5000 [phone] • 405.605.5001 [fax] • www.iec-okc.com ©2007 International Environmental Corporation (IEC). IEC is a subsidiary of LSB Industries, Inc. - AMEX symbol LXU; www.lsb-okc.com...