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- Page 1 ETN-24-HC22 PROG-C (TRE-24-HC22-PROG) Owner's Manual - Installation and Operating Instructions Meitav-tec Ltd (Contel group) Tel: +972-3-9626462 Fax: +972-3-9626620 Rev. 6.4 12.06 www.meitavtec.com - support@meitavtec.com...
- Page 2 Please read this manual carefully before installation and use. Index Options and accessories Installation Instructions Wiring Connections DIP switch explanation - different configurations Operating Manual Hand held remote control - Option. (With weekly program built in) Troubleshooting for the technician 1.
- Page 3 2. Installation Instructions Separate the front panel from back panel by depressing the tongue located in the top of the unit. Pull the back panel out. Line the back panel up against the wall or flat surface. Install three screws as required. Make electrical connections as shown on enclosed electrical wiring diagram.
- Page 4 Compressor 1 Note: #1 - “T”,”T” Terminals can be used in any systems configuration when a Meitav-tec external sensor is terminated and the switch is correctly configured (Table #3.1). Note: #2 - If one transformer is used, they the factory installed jumper between...
- Page 5 IMPORTANT! Before making any changes in the dipswitch disconnect electricity in the main board. 4. DIP switch Explanations (different configurations) 4.1 The DIP switch is located in the middle of the board as shown in the drawing. (Inside the thermostat) DIP switch DEFAULT SWITCH FROM FACTORY 1 2 3 4 5 6...
- Page 6 Table 4.1 – Dipswitch selection Switch Function Default Internal Sensor Control External sensor control Not in use Heat Pump in COOL mode (“O”) Heat Pump in HEAT mode (“B”) 3 minutes delay for compressor No delay Internal Sensor Control External sensor control Internal Sensor Control External sensor control Use this table together with the illustration above showing the switch configuration.
- Page 7 In the picture, pins 1,6 - ON and pins 2,3,4,5 - OFF Default switch from factory 4.3 External sensor connection - option Important! The external sensor must be Meitav-tec type. Table 4.3 - N.TC. Sensor: Temperature ~ Resistance Characteristics Temp °C 10.0...
- Page 8 4.5 External sensor switch configuration Disconnect power to the thermostat 24Vac by removing the front half of the sensor. Move the Dipswitch as in the picture. Switches #2,3 & 4 should be configured for the heating and cooling system as shown in Table 4.1. Switch 1 - OFF Switch 5 - ON Switch 6 –...
- Page 9 5. Operating Manual 5.1 On/Off Press ON/OFF button to activate or deactivate the thermostat. The word "ON" or "OFF" will appear in the display. 5.2 Temperature adjustment • Press the SET buttons (+) or (-); the temperature will flash. • Change temperature with the set buttons (+) or (-). •...
- Page 10 5.3 Select button With the select button you can choose: • System Mode: Heating only, cooling only, auto changeover, or fan only. • Fan Mode: Fan On or Auto fan (while heating or cooling). • Press the SELECT button. • The Heating and Cooling MODE will appear. •...
- Page 11 5.5 Programming: The thermostat is a 5-1-1 programmable; weekdays Monday through Friday, Saturday and Sunday both have individual programs. There is four program events per day: 1-Wake, 2-Day, 3-Return, 4-Sleep Before programming your thermostat you should be familiar with the display of the unit: Thermostat Display Temperature digits In normal display will show the temperature in the room.
- Page 12 Program event currently being adjusted will be indicated: • Wake program of day • Day program of day • Return program of day • Sleep program of day Set - When changing the temperature set point, the temperature digits will flash, and the "SET"...
- Page 13 Program Example Monday to Friday 1 (Wake) 2 (Day) 3 (Return) 4 (Sleep) Start time 6:30 AM 8:00 AM 5:30 PM 10:00 PM Cool Set Point 25°C 29°C 25°C 28°C Heat Set Point 21°C 17°C 21°C 17°C Saturday 1 (Wake) 2 (Day) 3 (Return) 4 (Sleep)
- Page 14 Adjust Clock Adjust Clock Adjust Clock - Settings-Minutes Day of the week Settings-Hours Programming Program No. Wake Heat Temp. Hour Cool Temp. Minutes Program No. Cool Temp. Heat Temp. Hour Minutes...
- Page 15 Program No. Return Heat Temp. Cool Temp. Hour Minutes Sleep Program No. Heat Temp. Cool Temp. Hour Minutes Saturday and Sunday programming Follow the steps above to set the programs for Saturday and Sunday. At any time during the programming you can review the settings quickly by pressing the ON button.
- Page 16 5.6 Override set temperature: At anytime you may change the temperature by pressing the set (+/-) buttons. The new temperature will be retained until the next program starts. The thermostat’s memory (program and real time clock) will be kept for 12 hours during power failure without the use of batteries.
- Page 17 6.2 Operating Manual On/Send,OFF • Press ON/SEND to activate the air conditioner and/or updating information. • Press OFF to turn the thermostat off and update information. When sending information to the thermostat – the remote control must point towards the thermostat. Fan: •...
- Page 18 Heat Mode: • Press the set buttons (+) or (-). • “HEAT” & digits will flash. • Select the desired temperature. • Press ON/SEND button to send information to thermostat. Auto Change Mode: • Press the adjustment buttons (+) or (-) •...
- Page 19 Real Time Clock and Day: • Press SELECT button - CLOCK SET will flash. • Press (+) or (-) buttons - the hours will flash. • Adjust the hours with (+) or (-) buttons. • Press SELECT again - minutes will flash. •...
- Page 20 The program can be set away from the thermostat and can be sent later on. To send the program to the thermostat, follow the steps below without adjusting times and temperatures. Only press the ON/SEND button each time the word SEND blinks on display (point the remote control to the thermostat) •...
- Page 21 The controller keeps a safety differential of at least 1 degree between Heating set point and Cool set point (Heat is always less than Cool). After selecting the heating set point, you cannot reduce the cooling set point less than the heating set point. •...
- Page 22 • “PROGRAM” (flashing) and “SU” (Sunday) will appear in display. • Adjust the programming for Sunday the same way as programming MON to FRI. • “SEND” will blink; press ON/SEND button to send the information to the thermostat. • The TIMER will blink; using the (+) or (-) buttons, Select TIMER ON or OFF.
- Page 23 7. Troubleshooting for Technician Problem Solution Check the thermostat for 24Vac. Remove the front cover at test at the Rc (Rh) to C. Check for good wiring connections at: The display is blank Rh (24Vac for heat), Rc (24Vac for cool), C (common). If you are using one transformer for cool and heat, check that the jumper is installed between Rc, Rh and common is tight.
- Page 24 REV 6.4...
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