Honeywell TH9000 Series Equipment Interface Module Installation Guide
Honeywell TH9000 Series Equipment Interface Module Installation Guide
For up to 4 Heat/2 Cool systems with Equipment Interface Module or equivalent.
System Types
- Gas, oil, or electric heat with air conditioning
- Warm air, hot water, high efficiency furnaces, heat pumps, steam, gravity.
Must be installed by a trained, experienced technician
Read these instructions carefully. Failure to follow these instructions can damage the product or cause a hazardous condition.
Installation
- Remove cover from Equipment Interface Module (EIM).
- EIM can be mounted on equipment or on wall. Use included wall anchors for mounting onto drywall (drill 3/16″ holes for drywall; 7/32″ holes for plaster).
Wiring
Connect wires as shown below (see wiring guides on following pages)
Restore power and check LED:
- LED blinks rapidly: Normal information transfer.
- LED blinks once: Incoming message to EIM.
- LED blinks continuously: Wiring problem.
Check wiring to terminals 1, 2, 3. - LED always off: Wiring problem. Check wiring to terminals 1, 2, 3.
- LED always on: EIM may need replacement
Wiring guide
- Typical hookup of conventional system with up to three-stage heat and two-stage cool with one transformer (3H/2C, 2H/2C, 2H/1C, 1H/2C, 1H/1C, 1H, 2H, 3H, 1C, 2C conventional).
(WIRE TO TERMINALS ON THERMOSTAT) - Typical hookup of heat pump system with up to four-stage heat and two-stage cool with one transformer (4H/2C, 3H/2C, 2H/2C, 2H/1C, 1H/1C heat pump systems).
Wiring guide—equipment
With power supply
- Typical hookup of powered humidifier.
- Typical hookup of powered ventilation.
- Typical hookup of powered dehumidifier (whole house dehumidifier).
Without power supply
- Typical hookup of non-powered humidifier.
- Typical hookup of non-powered ventilation.
- Typical hookup of variable speed blower for dehumidification in low speed.
KEY
- NORMALLY OPEN, DRY CONTACTS
- NORMALLY CLOSED, DRY CONTACTS
Specifications
Temperature Ranges
- Heat: 40° to 90°F (4.5° to 32°C)
- Cool: 50° to 99°F (10° to 37°C)
Operating Ambient Temperature
- -30° to 150°F (-34 to 66°C)
Shipping Temperature
- -30° to 150°F (-34 to 66°C)
Operating Relative Humidity
- 5% to 90% (non-condensing)
Physical Dimensions
- 7-9/16″ H x 4-35/64″ W x 1-21/64″ D 185 mm H x 116 mm W x 34 mm D
Electrical Ratings
Terminal | Voltage (50/60Hz) | Running Current |
W Heating | 20-30 Vac | 0.02-1.0 A |
W2 Heating | 20-30 Vac | 0.02-1.0 A |
W3 Heating | 20-30 Vac | 0.02-1.0 A |
Y Cooling | 20-30 Vac | 0.02-1.0 A |
Y2 Cooling | 20-30 Vac | 0.02-1.0 A |
Aux Auxiliary Heat | 20-30 Vac | 0.02-1.0 A |
Aux2 Auxiliary Heat | 20-30 Vac | 0.02-1.0 A |
G Fan | 20-30 Vac | 0.02-1.0 A |
O/B Changeover | 20-30 Vac | 0.02-1.0 A |