ION Ion SYST0101CW User manual

Installation Instructions
A180023
NOTE: Read the entire instruction manual before starting the installation.
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NOTE: Please refer to the literature provided with the connected HVAC equipment for more
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The features and functions outlined in the Installation Instructions reflect Version 1 software.
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and literature.
US Patents: U.S. Pat No. 7,243,004, U.S. Pat No. 7,775,452, pointSET™ U.S. Pat No.
7,415,102
SYST0101CW
Ion™ System Control
™

2
Table of Contents
1. Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
3. Quick Start. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1. Set Time and Date. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.1.1. Manually Adjust Time and Date. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.1.2. Setup Time Zone. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1.3. Enable Time Synchronization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3.2. Set Dealer Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4.1. Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2. Check Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
4.3. Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
4.3.1. Wall Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.3.2. Wired Remote Room Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.3.2.1. Wired Remote Room Sensor Averaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.4. Wiring Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.4.1. Shielded Wire and Communication Bus Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
4.4.2. Damper Control Module (zoning systems only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
4.5. Decorative Trim Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
4.5.1. Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
4.5.2. System Control Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.6. Humidifier Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.6.1. Bypass Humidifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.6.2. Fan Powered Humidifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
5. Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.1. Searching for Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2. Searching for Outdoor Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
5.3. Indoor Evaporator Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.4. Electric Heater Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
5.4.1. Hydronic Heat Application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
5.5. Searching for Zones (If Applicable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.6. Filter Type Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.7. Humidifier Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
5.8. Ultraviolet Lights Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
5.9. Equipment Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.10. Airflow Verification Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
5.11. Duct Assessment (zoned systems only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6. Service Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
6.1. Equipment Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.2. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
6.3. Set up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
6.3.1. Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
6.3.1.1. Auto Mode Set Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

3
6.3.1.2. Heat/Cool Deadband . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
6.3.1.3. Offsets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.3.1.4. Reset Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
6.3.1.5. Scheduling On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.3.1.6. Smart Recovery On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
6.3.2. Fan Coil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
6.3.2.1. Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.3.2.2. Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.3.2.3. Dehumidification Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.3.2.4. Fan Coil G-Terminal Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.3.2.5. Fan Coil G-Terminal Alert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
6.3.2.6. Fan Coil G Terminal Alert Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
6.3.3. Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
6.3.3.1. Furnace Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.3.3.2. AC/HP Airflow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.3.3.3. Furnace Staging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
6.3.3.4. Furnace Airflow Limits (modulating furnace only) . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.3.3.5. Furnace Off Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
6.3.3.6. Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.3.3.7. Furnace Dehumidifier Drain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.3.3.8. Furnace G Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.3.3.9. Furnace G-Terminal Alert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.3.3.10. Furnace G Terminal Alert Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
6.3.4. AC/Heat Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.3.4.1. Latching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
6.3.4.2. Cooling Lockout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
6.3.4.3. Defrost Interval. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.3.4.4. Low Ambient Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.3.4.5. Quiet Shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.3.4.6. Defrost Fan Delay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.3.4.7. Brownout Disable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.3.4.8. Low Air Multiplier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.3.4.9. Energy Efficiency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.3.5. Heat Source Lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.3.6. Stages / Latch for SmartSense Heat Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
6.3.7. Zoning (If Applicable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.3.7.1. Disable Zoning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
6.3.7.2. Zone Offsets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
6.3.7.3. Airflow Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.3.7.4. Duct Assessment Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
6.3.8. Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
6.3.8.1. Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
6.3.8.2. Humidifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
6.3.8.3. Ultraviolet Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.3.9. Utility Curtailment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.3.10. Hydronic Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
6.4. Check out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

4
6.4.1. Electric Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.4.2. Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
6.4.3. Hydronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
6.4.4. Air Conditioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
6.4.5. Heat Pump Heating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.4.6. Heat Pump Cooling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.4.7. Humidifier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
6.4.8. Zoning (If Applicable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.4.8.1. Airflow Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.4.8.2. Damper/Sensor Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.4.8.3. Zone Duct Assessment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
6.4.8.4. Sensor Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.5. Service Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
6.5.1. Advanced Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.5.2. Fan Coil Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
6.5.3. Furnace Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.5.4. AC Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.5.5. Heat Pump Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
6.5.6. Zoning Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.5.7. Last 10 System Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
6.5.8. Run/Fault History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.5.9. Model/Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
6.5.10. Service Phone Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
6.5.11. Energy Tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.6. Refrigerant Charging: SmartSense Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.6.1. Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
6.6.2. Pump Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
6.6.3. Evacuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.6.4. EXV Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.7. Dealer Contact Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
6.7.1. Upload Dealer Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
6.7.2. Manually Enter Dealer Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
6.8. Utility Event Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7. Wireless Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
7.1. Setup and Status Information (Homeowner’s Router) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
8. Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
9. Statement Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
9.1. FCC Interference Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
NOTE: See the Owner’s Manual for information regarding software upgrades.

5
1. Safety Considerations
Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion,
fire, electrical shock, or other conditions which may cause death, personal injury or property
damage. Consult a qualified installer, service agency or your distributor or branch for
information or assistance. The qualified installer or agency must use factory-authorized kits or
accessories when modifying this HVAC system. Refer to the individual instructions packaged
with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing, and work gloves. Have a fire
extinguisher available. Read these instructions thoroughly and follow all warnings and cautions
included in literature and attached to the unit. Consult local building codes and the current
edition of the National Electrical Code (NEC) NFPA 70. In Canada, refer to the current editions
of the Canadian Electrical Code CSA C22.1.
Recognize safety information. When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury. Understand the signal words DANGER,
WARNING, and CAUTION. These words are used with the safety-alert symbol. DANGER
identifies the most serious hazards, which will result in severe personal injury or death.
WARNING signifies hazards, which could result in personal injury or death. CAUTION is used
to identify unsafe practices, which may result in minor personal injury or product and property
damage. NOTE is used to highlight suggestions which will result in enhanced installation,
reliability, or operation.
2. Introduction
The Ion™ System consists of several intelligent communicating components which include the
Ion System Control (or User Interface), communicating variable speed furnace or FCM4 fan
coil, single stage AC and HP, 2-stage AC and HP, and multi-stage AC and HP. The Ion System
Control continually communicates with each ICP communicating HVAC unit via a four-wire
connection called the communications bus. Commands, operating conditions, and other data are
passed continually between components over the communications bus.The result is a new level
of comfort, versatility, and simplicity.
NOTE: The full features of the Ion System are only available with specific ICP systems. See
the Ion System Control Product Data for compatible units and more information.
All ICP communicating furnaces or fan coils are variable-speed and multi-stage for maximum
flexibility, efficiency, and comfort. They support controlled humidification, dehumidification,
and air quality control. Either an ICP communicating, or a standard single-stage 24VAC
controlled outdoor unit may be used.
When using conventional single-stage outdoor units, the ICP communicating furnace or fan coil
provides the 24 volt signals needed to control them. When using multi-stage conventional

6
outdoor units or heat pumps, an Ion Communicating Relay Module or “CRM” (P/N
SYST0101RM) may be required to provide additional control outputs.
All system components are controlled through the wall mounted Ion System Control, which
replaces the conventional thermostat and provides the homeowner with a single wall control for
all features of the system.
3. Quick Start
NOTE: See Installation Section for installation instructions.
3.1. Set Time and Date
The time and date can either be set manually or can be synchronized with the web server. From
the main screen, touch MENU, on the bottom of the control. The TIME/DATE icon will bring
up the time and date menu.
A14215
3.1.1. Manually Adjust Time and Date
• To set the HOUR, MINUTE, MONTH, DAY, or YEAR touch the feature you wish to
change.
• Use the Up (▲) and Down (▼) buttons to make the appropriate changes.
• When you have completed all of the settings touch SAVE.
3.1.2. Setup Time Zone
The time zone can be selected by selecting the set time zone from the menu. Then select the
time zone for the location. Time zones for both US and Canada are included.
3.1.3. Enable Time Synchronization
After setting up the time zone, the time synchronization can then be done, after connection to
the Internet server. Both setting the time zone and enabling time synchronization must be done
in order to enable time synchronization.

7
3.2. Set Dealer Information
From the main screen, touch MENU, on the bottom of the control, then Down (▼) button so
that the SERVICE icon is shown. The SERVICE icon allows you to upload your contact
information into the Ion System Control.
A170243I
• Format your contact information and logo (if applicable) using the PC/MAC Desktop
application available at www.IonComfort.com, and save it to a standard micro SD card. See
Dealer Contact Information Section for more information.
• Touch the SERVICE icon for about 10 seconds, touch DEALER CONTACT
INFORMATION, and then touch UPLOAD DEALER INFORMATION.
• Place the micro SD card into the micro SD card slot on the bottom of the Ion System Control
and follow the on screen prompts.
• More detailed information can be found at www.IonComfort.com.
4. Installation
4.1. Overview
This instruction covers installation of the Ion System Control (SYST0101CW) only. Physical
installation instructions for the indoor and outdoor equipment, and accessories are provided
with each unit.
Setup, commissioning, operation, and troubleshooting of the Ion System are covered in this
installation instruction at a high level. More detailed information may be available in the ICP
communicating HVAC equipment Installation Instructions. This is the guide to connecting the
system components and commissioning the system once all physical components are installed.
Special screen prompts and start-up capabilities are provided in the Ion System to simplify and
automate the initial commissioning of the system.
• Install the Ion System Control according to this instruction.
• Install indoor unit, outdoor unit, and accessories according to their instructions.
• Wire complete system according to this instruction.

8
• Setup, commission, and operate system according to this instruction, and as supplemented in
the HVAC equipment Installation Instructions, to assure a smooth and trouble free start-up.
• Note that some detailed equipment configuration and service information may be included
with the equipment instructions. Please refer to the equipment installation instruction
manuals, and applicable technical training materials, for all devices for complete
information.
4.2. Check Equipment
Inspect equipment. File a claim with shipping company prior to installation if shipment is
damaged or incomplete.
4.3. Location
All wiring must comply with national, state, and local codes.
4.3.1. Wall Control
The Ion System Control is the command center for the Ion System. It should be located where it
is easily accessible and visible to the adult homeowner or end user. For accurate temperature
measurement, the following guidelines should be followed:
The Ion Control, Remote Room Sensors and Smart Sensors (when available) SHOULD be
mounted:
• Approximately 5-ft (1.5 m) from the floor.
• Close to or in a frequently used room, preferably on an inside partitioning wall.
• On a section of wall without pipes or ductwork.
The Ion System Control and Sensors SHOULD NOT be mounted:
• Close to a window, on an outside wall, or next to a door leading to the outside.
• Exposed to direct light or heat from a lamp, sun, fireplace, or other temperature-radiating
objects which could cause a false reading.
• Close to or in direct airflow from supply registers.
• In areas with poor air circulation, such as behind a door or in an alcove.
WARNING
!
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury or death.
Disconnect power before routing control wiring.

9
4.3.2. Wired Remote Room Sensors
A Remote Room Sensor can be used with the Ion System Control to take the place of the
control’s internal temperature sensor. This allows the Ion System Control to be mounted in areas
with less than optimal airflow (such as near an exterior door, window or in a closet). The remote
sensor can be wired to the terminal block connectors labeled S1 and S2 at the control’s
backplate, or the ZS1 and ZS1C connection at the Damper Control Module. In either case, the
Ion Control will automatically detect the Remote Room Sensor and ignore its internal
temperature sensor.
NOTE: Humidity sensing will occur ONLY at the Ion System Control. The wired Remote
Room Sensor does NOT have humidity sensing capability.
4.3.2.1. Wired Remote Room Sensor Averaging
Typically, one wired remote sensor is used but, multiple wired sensors may be used and
averaged in some applications. Averaging requires a special series-parallel wiring method with
a specific number of sensors. See figure below. It is also important to note the humidity sensor
cannot be remotely located, so do not locate the Ion System Control in an area where humidity
sensing may not be accurate.
A03233
4.4. Wiring Considerations
Ordinary thermostat wire is recommended. See Shielded Wire and Communication Bus
Configuration Section for notes on shielded wire. Continuous wire lengths over 25 ft. should
use 18 AWG wiring.
NOTE: Communications bus wiring only requires a four-wire connection; however, it is good
practice to run thermostat cable having more than four wires in the event of a damaged or
broken wire during installation.
Each communicating device in the Ion Zone System has a four-pin connector. It is
recommended that the following color code be used when wiring each device:
Sensor 1 Sensor 2
Sensor 3 Sensor 4
Damper Control
Module
ZS_
Damper Control
Module
ZS_C

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DX+ — Green = Data A
DX- — Yellow = Data B
C — White = 24VAC (Com)
R — Red = 24VAC (Hot)
A03193I
It is not mandatory that the above color code be used, but each communications connector in the
system MUST be wired consistently.
NOTE: Some outdoor units, typically those with multiple compressor stages, provide their own
low-voltage power source and do not require the “C” (24VAC common) and “R” (24VAC
power) connections. See the outdoor unit installation instructions for more information.
4.4.1. Shielded Wire and Communication Bus Configuration
If the thermostat wiring will be located near or in parallel with high voltage wiring, radio, TV or
Ethernet wiring, then four conductor, twisted-pair, shielded cable can be used to reduce or
eliminate potential interference. The shield wire should be connected to the C terminal, or
ground, AT THE INDOOR UNIT, ONLY. The shield wire should NOT be connected to any
terminal at the Ion System Control. Connecting the shield to ground at both ends can cause
current loops in the shield, reducing shield effectiveness.
Connect one pair of the two-pair (minimum) cable to the DX+ and DX- communication
terminals, and another pair to the C and R terminals at both ends of the cable. The shield wire
should ONLY be connected at the indoor equipment ground or C terminal. Note that some
outdoor units only require the DX+ and DX- connections. See the outdoor unit installation
instructions for more information.
WARNING
!
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury or death.
Before installing, modifying, or servicing system, the main electrical disconnect switch must
be in the OFF position. There may be more than one disconnect switch. Lock out and tag
switch with a suitable warning label.
DX+ DX- RC