The ETN24 is designed for wall mounting in the room to be controlled. It should be located where the occupant can easily read the LCD display and use the controls. If the built in temperature sensor is being used to measure room temperature, the module should be placed where the temperature is representative of the general room conditions. Cold or warm air draughts; radiant heat and direct sunlight should be avoided.
General points to follow
Installation procedure
Before connecting or disconnecting any wires, ensure that all power supplies have been switched off and all wires are potential-free to prevent equipment damage and avoid electrical shock. Do not run wiring close to transformers or high-frequency generating equipment. Complete and verify all wiring connections before applying power to the controller to which the module is connected
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DIP Switch and Jumpers Configuration
The DIP Switch is located on the top of the back side of the thermostat (above the connectors).
Switch | Internal/External Sensor | HP | HC | Time delay for compressor | ||||
Internal sensor | External sensor | Heat Pump in heat “B” | Heat Pump in cool “O” | Oil/Gas heat | Electric heat | No delay | 3 Minutes | |
1 | ON* | OFF | X | X | X | X | X | X |
2 | X | X | ON | OFF* | X | X | ||
3 | X | X | ON | OFF | ON | OFF* | X | X |
4 | X | X | X | X | X | X | ON | OFF* |
5 | OFF* | ON | X | X | X | X | X | X |
6 | ON* | OFF | X | X | X | X | X | X |
For complete reset of the unit, use JMP1 (3 pins) as follows: move the jumper from “A” position to “B” position, wait 30 seconds and move the jumper back to “A” position. JMP2 (2 pins) is not in use and must always stay shorted.
Connecting the external sensor
Notes:
On/Off
Set point
In Cool mode and in Heat mode:
In Fan only mode or in auto change-over mode (2 set-points):
Modes / Auto fan
Lock Buttons
Use the Lock option to prevent users from making unwanted changes. When the thermostat is locked, the [Select], [+] and [-] buttons are disabled, however, the users can turn the thermostat ON or OFF. The display will alternate between “Loc” and real time clock.
Weekly Program
The thermostat is 7-DAY PROGRAMMABLE. It can be programmed with up to 7 different programs, 1 for each day, with start time and stop time
Enable/Disable/Override the weekly program
Note that the words “Start” or “Stop” on display will indicate the current status of the weekly program as follows: Override the program (After hours timer): The word “Stop” will flash when the occupant manually turned the unit ON, during stop event. Override period is 2 hours before turning the unit back OFF.
Set point temperature limit for cooling
Indication: “Cool” and the set point Temperature limit for cooling. Range: 5…30°C, default 5°C.
Set point temperature limit for heating
Indication: “Heat” and the set point temperature limit for heating. Range: 5…30°C, default 30°C.
Offset for calibration of the measured temperature
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DOWNLOAD MANUALS:
Meitay-tec ETN-24-SUPER PROGRAMMABLE Thermostat Installation Guide
OTHER MANUALS:
Meitay-tec ETN-24-SUPER PROGRAMMABLE Thermostat Product Specification Guide
Meitay-tec ETN-24-SUPER PROGRAMMABLE Thermostat Installation Guide
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