ET10 Series Stand-alone LCD Fan Coil Thermostat Features Modern Appearance Stylish Rotary dial and buttons Large LCD with backlight Separate power supply unit with high performance relay outputs Retention of temperature set-point and fanspeed upon power failure Unoccupied mode contact for energy saving Window contact for remote system on-off control Thermostat on-off interlocking digital output 2-wire on-off, 3-wire floating and 0-10 VDC models available Dual-output model provides auto cooling/ heating changeover with adjustable deadband PI Algorithm Remote sensor capability Seasonal changeover sensor availability Optional remote controller Selectable Functions Selectable ºC or ºF temperature display Field selectable program to retain last operation mode upon power failure Measured temperature off-set Selectable P-band and I-time Selectable Actuator stroke time (3-wire floating model) Selectable 1 to 5 K deadband (dual-output models) Field adjustable high and low set point limit Field adjustable cooling and heating energy saving mode set points Selectable fan action in unoccupied mode Selectable Auto Fan sequence in heating mode Selectable operating mode sequence for dual-output models Selectable manual/auto operating sequence for single output models Selectable constant display of temperature between sensing or set-point General The ET10 Standalone LCD Fan Coil Thermostats are designed to control heating, cooling, or year round air conditioning units in commercial, industrial and residential Installation. Typical application includes the control of fan coil units, packaged terminal air conditioners and combination heating and cooling equipment. As part of the system that consists of twoway or three-way valve and a multi-speed line voltage fan. ET10 consists of 2 units; Display Control Unit (DCU) and Power Supply Unit (PSU). Ordering To order the ET10 Series thermostat, contact the nearest Cyrus representative. Specify the desired product code number from model selection guide. 1 ET10-E004-1205 May 2012
Product Overview The ET10 are line voltage LCD fan coil thermostat with 11 basic models that cover all type of FCU standalone applications. The thermostat consists of 2 units; the Display Control Unit (DCU) and the Power Supply Unit (PSU). There are models for cooling only, heating only and heating/cooling fan coil system integrate with 2-wire, 3-wire or 0-10 VDC input valve control. On-board high accuracy NTC sensor allows precision comfort control over occupied space area. The DCU of ET10 can be surface mounted or secured to a standard European 75 x 75 x 35 mm electrical box. Two M3.5 mounting screws are included. Model ET10-1 and ET12-1 The Model ET10-1 is line voltage LCD fan coil thermostat that is designed for cooling only / heating only fan coil unit with 2-wire line-voltage valve actuator application (ET12-1 provides 24 VAC valve outputs). Integral with system of Cooling/Heating- Fan-Off switch that allows users to cutoff power for fan and the output for valve actuator. Simply pressing the fan speed button, allows users to select Auto-High-Med-Low fan speed. All fan outputs by relay that can withstand max. of 5 Amp (resistive) 2 Amp (Inductive) operating current. Model ET10-1F and ET12-1F The Model ET10-1F is line voltage LCD fan coil thermostat that is designed for cooling only / heating only fan coil unit with 3-wire valve line-voltage actuator application (ET12-1F provides 24 VAC valve output). Integral with system of Cooling/Heating-Fan- Off switch that allows users to cutoff power for fan and the output for valve actuator. Simply pressing the fan speed button, allows users to select Auto- High-Med-Low fan speed. All fan outputs by relay that can withstand max. of 5 Amp (resistive) 2 Amp (Inductive) operating current. Model ET10-1A The Model ET10-1A is line voltage LCD fan coil thermostat that is designed for cooling only / heating only fan coil unit with 0-10 VDC valve actuator application. Integral with system of Cooling/Heating- Fan-Off switch that allows users to cutoff power for fan and the output for valve actuator. Simply pressing the fan speed button, allows users to select Auto-High-Med-Low fan speed. All fan outputs by relay that can withstand max. of 5 Amp (resistive) 2 Amp (Inductive) operating current. Model ET10-2 and ET12-2 The Model ET10-2 is line voltage LCD fan coil coil unit with 2-wire line-voltage valve actuators application (ET12-2 provides 24 VAC valve outputs). Integral with system of Cooling-Heating-Auto-Fan-Off switch that allows users to cutoff power for fan and the output for valve actuator. Simply pressing the fan speed button, allows users to select Auto-High-Med- Low fan speed. All fan outputs by relay that can withstand max. of 5 Amp (resistive) 2 Amp (Inductive) operating current. Model ET10-2F and ET12-2F The Model ET10-2F is line voltage LCD fan coil coil unit with 3-wire line-voltage valve actuators application (ET12-2F provides 24 VAC valve outputs). Integral with system of Cooling-Heating- Auto-Fan-Off switch that allows users to cutoff power for fan and the output for valve actuator. Simply pressing the fan speed button, allows users to select Auto-High-Med-Low fan speed. All fan outputs by relay that can withstand max. of 5 Amp (resistive) 2 Amp (Inductive) operating current. Model ET10-2A The Model ET10-2A is line voltage LCD fan coil coil unit with 0-10 VDC valve actuators application. Integral with system of Cooling-Heating-Auto-Fan-Off switch that allows users to cutoff power for fan and the output for valve actuator. Simply pressing the fan speed button, allows users to select Auto-High-Med- Low fan speed. All fan outputs by relay that can withstand max. of 5 Amp (resistive) 2 Amp (Inductive) operating current. Model ET10-2AH The Model ET10-2AH is line voltage LCD fan coil coil unit with 0-10 VDC cooling valve actuator and 2- wire on-off heating control application. Integral with system of Cooling-Heating-Auto-Fan-Off switch that allows users to cutoff power for fan and the output for valve actuator. Simply pressing the fan speed button, allows users to select Auto-High-Med-Low fan speed. All fan outputs by relay that can withstand max. of 5 Amp (resistive) 2 Amp (Inductive) operating current. 2
LCD Segments and Buttons Auto Mode Heating Mode Cooling Mode Fan Mode Unoccupied Mode Window Mode LCD Fan key Set-point dial IR receiver System key Temperature Med Fan Auto Fan Low Fan 888 o C o F AUTO Celsius Fahrenheit High fan Operation Notes Temperature Display Backlight LCD shows sensing temperature constantly except when temperature set point adjustment is being made The backlight will light up for 5 seconds when any button is pressed Mode of operation Press the system control key to enter into the desired operating mode: Cool-Heat-Auto-Fan Only-Off Fan speed Press the fan control key to change the fan speed mode: High-Med-Low-Auto Temperature Set-point Unoccupied Mode (Energy-saving) Window Contact Parameter setup menu Increase or decrease temperature set point by rotating the adjustment dial clockwise or counter-clockwise. The energy saving mode is activated while OCU contact is in closure. In unoccupied mode, all buttons are locked and preset temperature set points are 26 o C and 16 o C for cooling and heating respectively. Fan speed is always set at low. Window contact closure turns off the thermostat and locks all buttons The thermostat allows authorized service agent to change the certain number of operating parameters, please refer to parameter setup manual for details. Dimensions in mm Display Control Unit Power Supply Unit Remote Controller 3
Wiring Diagrams and Application Notes Cut jumper JP1 open if an external sensor is wired to SR1 and GND. Run the wiring away from any electrical motors or power wiring. Failure to do so may result in poor thermostat performance due to electrical noise. 22 or 24 AWG twisted shielded pair double-insulated cable is recommended as remote sensor wiring and its length must not exceed 25 m. Connecting wires between Display Control Unit and Power Supply Unit must not exceed 15 m. Do not bundle and run power wiring and remote sensor wiring in the same conduit. The seasonal changeover sensor should be wrapped around the supply water pipe when associated with a water system. When the changeover sensor temperature exceeds 30 ºC, the thermostat enters into heating mode. Unoccupied contact closure activates unoccupied mode. Window contact closure activates thermostat lockout mode. DI1 provides a thermostat on-off interlocking output. Hidden-line wiring for Terminals V2 and 6 are applicable to ET10-2 only. The thermostat outputs are designed for controlling zone valves. If used for controlling electric heaters, external contactors must be used. More wiring diagrams are available, please contact the nearest Cyrus representative for details WARNING Incorrect wiring connection may cause permanent equipment damages to the thermostat ET10-1/ET10-2 Wiring Diagram DO1+ DO- CN3 Sensor wires: 22 AWG twisted shielded pair double-insulated cable Inter-connecting wires: Cat 5e Twisted 6-conductor cable (shielded recommended) Power wires: wire size 1 mm 2 or 18 AWG solid copper recommended 4
Technical Specifications Product Model Power Requirements Sensing Element Operating Temperature Differential (for 2-Wire On-Off Models) Temperature Display Range Temperature Set Point Range Deadband of Dual-Output Models Auto Fan Temperature Differential See ET10 Series Model Number Selection Guide 220 V, +/- 10%, 50/60 Hz, NTC thermistor, 10 kω@25ºc; accuracy ±0.5 K@25ºC Fixed at 1 K for both cooling and heating modes 5-35 º C in 0.5 K increments: accuracy ±1 K (41-95ºF in 1.0 R increments, accuracy ±2 R) 5-35 º C in 0.5 K increments, initial factory setting at 22 º C (41-95ºF in 1.0 R increments) 3 K (Adjustable 1 to 5 K in setup menu At 2 K (4 R) increments. At >0 K, fan is on low speed in cooling mode and fan status in heating mode depends on auto fan action selection setting. Offset of measured temperature +2, +1, 0, -1 and -2 K (+2, +1, 0, -1 and -2 R), factory setting 0 Valve Stroke Time (3-Wire Models) 10, 60, 90,120, 150,180, 210 or 240 seconds Proportional Band Adjustable 1 to 10 K (2-10 R) in 1 K (1 R) increments, factory setting 5 K (5 R) Integral Time Unoccupied & Window contacts Body Material Finish Adjustable 0 to 30 minutes in 1 minute increments, factory setting 15 minutes. Setting = 0 means integral time being turned off. Input signal from external voltage-free contact Self-extinguishing, molded ABS Off white body / grey face plate (white face plate is available up on request) Electrical Ratings Valve output 220 V, 3 A resistive, 1 A inductive, 50/60 Hz 24 V, 0.3A resistive / inductive, 50/60 Hz Fan output relays Total rating 220 V, 5 A resistive, 2 A inductive, 50/60 Hz 220 V, 5 A maximum, 50/60 Hz 0-10 VDC output impedance Minimum 10,000 Ω Ambient/Storage Temperature Limits Connections Power Wires Sensor Wires DCU to PSU Interconnection Agency Approval Shipping Weight Dimensions 0 to 50 o C / -30 to 50 o C, 10% to 90% RH non-condensing Non-removable terminal blocks Wire size 1 mm 2 or 18 AWG solid copper recommended 22 AWG twisted shielded pair double-insulated cable Cat 5e twisted 6-conductor cable (shielded or unshielded) CE Mark compliant to EMC and low voltage directives 550 g See Dimensions drawing in mm 5
Model Selection Guide ET1 0-2AH - W Power 0 = 220 VAC, 50/60 Hz 2 = 220 VAC, 50/60 Hz with 24 VAC valve output 0 Valve Control Output 1 = 2-wire on-off (Heating only or Cooling only2-pipe) 1F = 3-wire floating (Heating only or Cooling only 2-pipe) 1A = 0-10 VDC (Heating only or Cooling only 2-pipe) 2 = 2-wire on-off (Heating / Cooling 4-pipe) 2F = 3-wire floating (Heating / Cooling 4-pipe) 2A = 0-10 VDC (Heating / Cooling 4-pipe) 2AH = 0-10 VDC Cooling + 2-wire on-off Heating (4-pipe) 2AH Options & LCD layout Nil = Grey Face-plate W = White Face-plate R = IR Receiver for Remote Controller H Repair and Replacement Ordering Information If the thermostat fails to operate within its specifications, replace the unit of the DCU or the PSU or a complete set. To order the replacement, contact the nearest Cyrus representative. Specify the desired product code number from table above. IMPORTANT: The power supply to the thermostat must include overload protection. Failure to include overload protection may result in damage to the thermostat. Use this ET10 Series Line Voltage Fan Coil Thermostat only as an operating control. Where failure or malfunction of the ET10 Series Thermostat could lead to personal injury or property damage to the controlled equipment or other property, additional precautions must be designed into the system. Incorporate and maintain other devices such as supervisory or alarm systems or safety or limit controls intended to warn of, or protect against, failure or malfunction of the ET10 Series Thermostat. Error Codes When the following errors are reported on the LED display unit, the thermostat will be out of operation: E-1 EEPROM read/write error E-2 Remote temperature sensor open-circuited while JP1 jumper is cut E-3 Remote temperature sensor short-circuited while JP1 jumper is cut Trouble-Shooting Before trouble-shooting starts, ensure that the voltage output from Terminals 1 (GND) and 2 (+5 Vdc) on the power supply unit is between 5 Vdc and 5.25 Vdc and not higher. Higher voltage may damage the internal circuitry and components of the display control unit. When abnormal power voltages are found, return the thermostat to the manufacturer for repair. When there is no 5 Vdc power output, check the line voltage power and its 5 A fuse. The specification above are normal and conform to generally acceptable industry standard. Cyrus is not responsible for damages resulting from misapplication or misuse of its products.