IEC E055-71520301 Installation Instructions Manual Download

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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.

FAN COIL

NON-PROGRAMMABLE

DIGITAL THERMOSTAT

OOL

EAT

AUTO

P/N E055-71520301
P/N E055-71520304

INSTALLATION
INSTRUCTIONS

2- OR 4-PIPE NON-PROGRAMMABLE

Summary of Contents for E055-71520301

Page 1: ...hen used with G100 71520306 accessory auto changeover sensor FAN COIL NON PROGRAMMABLE DIGITAL THERMOSTAT Copyright 2007 International Environmental Corp All Rights Reserved 72 74 70 COOL HEAT AUTO P...

Page 2: ...71520301 and P N E055 71520304 Table Of Contents Page 1 CAUTION WARNING Follow Installation Instructions carefully Disconnect Power to the Heater Air Conditioner before removing the old therm ostat a...

Page 3: ...ps call a qualified technician for assistance Assemble tools Flat Blade Screwdriver Wire cutter Stripper Make sure your Heater Air Conditioner is working properly before beginning installation of the...

Page 4: ...ct them and mark them with the letter of the terminal for easy reconnection to the new thermostat Keep the old thermostat for reference purposes until your new thermostat is functioning properly STEP...

Page 5: ...SYSTEMS Wire from the old thermostat terminal marked Install on the new thermostat terminal marked Function Cooling Heating Power Common Low Fan Speed Medium Fan Speed High Fan Speed Y1 W1 R C G G2 G3...

Page 6: ...MS Wire from the old thermostat terminal marked Install on the new thermostat terminal marked Function Water Valve Strip Heater Power Common Low Fan Speed Medium Fan Speed High Fan Speed Y1 W1 R C G G...

Page 7: ...COM G3 Y G2 W G LO MED HI HEAT COOL VALVE FAN 24vac R C Sample Wiring Diagram COM COM G G G3 Y G3 Y G2 W G2 W VALVE FAN R C G2 W1 G3 Y1 G E025 71520303 Thermostat E025 71520303 E025 71520303 4 Pipe 2...

Page 8: ...G2 W RS 5 RS GND RS Dry Contact Duct Sensor G100 71520307 R C R C G2 G3 G RS 5 RS H2O Ck1 Y1 W1 H C 24 Volt Water Valves E025 71520303 E025 71520303 Thermostat 24vac Important Note If a Duct sensor i...

Page 9: ...G LO MED HI HEAT COOL VALVE FAN R C Sample Wiring Diagram 2 Pipe Low Voltage Valve Heat Only or Cool Only COM G G3 Y G2 W R C G2 W1 G3 G V Y1 Thermostat 24 Volt Water Valve 24vac E025 71520303 E025 71...

Page 10: ...ND RS R C R C G2 G3 G RS 5 RS H2O V Y1 Duct Sensor G100 71520307 H O Changeover Sensor G100 71520306 2 E025 71520303 24 Volt Water Valve 24vac Important Note If a Duct sensor is conn ected to this the...

Page 11: ...R C Sample Wiring Diagram 2 Pipe Low Voltage Valve Chilled Water with Electric Strip Heat COM G G3 Y G2 W R C G2 G3 G V V R Y1 W1 E025 71520303 Page 10 24 Volt Cold Water Valve 24vac 24 Volt Relay to...

Page 12: ...n will be running Turn the power on to the Fan Coil Unit Press the UP button until the setpoint is equal to the room temperature Press the Fan button repeatedly until a single bar appears next to the...

Page 13: ...l the setpoint is equal to the room temperature Press the Fan button repeatedly until a single bar appears next to the Fan icon Confirm the fan is running on low speed Press the Fan button again confi...

Page 14: ...ton repeatedly until the OFF icon appears on the display Both valves will be closed and the fan will be off Press the UP button until the setpoint is equal to the room temperature Press the Fan button...

Page 15: ...ress the UP or DOWN buttons until the set temperature is 10 degrees below room temperature The cold water valve will open and the fan will be running If hot water is not available but your unit is equ...

Page 16: ...s the Fan button repeatedly until a single bar appears next to the Fan icon Confirm the fan is running on low speed Press the Fan button again confirm the fan is running on medium speed Again press th...

Page 17: ...programming for your type of fan coil system steps 3 and 4 page 11 of the Owner s Manual SYMPTOM The water valve does not open at all in 2 pipe configurations CAUSE The thermostat has been programmed...

Page 18: ...s Manual SYMPTOM The thermostat display is stuck in Unoccupied CAUSE The sensor connected to the Dry Contact terminals of the thermostat is active forcing the unit into Unoccupied REMEDY Verify prope...

Page 19: ...or and the H2O terminal 3 Place an ohmmeter between R and the wire just disconnected from the sensor 4 A good sensor will show continuity whenever the water temperature is confirmed to be at or below...

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IEC E055-71520301, Installation Instructions Manual

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