meitav-tec ETN-P Series Safety guide

etn-24p-1s-ir.doc
rev.1 26/12/2006
Meitav-tec Ltd (Contel group)
Tel: [phone] Fax: [phone]
www.meitavtec.com - [e-mail]
ETN-24-P-1S-IR
Owner’s Manual – Installation and Operating Instructions
Please read this manual carefully before installation and use.
Index
Options & Accessories 1
Installation Instructions 2
Wiring Connections 3
DIP switch Configuration 4
External Sensor Connection 5
Technician Settings 6
Operating Manual 7
1. Options and Accessories
Remote sensor option:
•TS01: Temperature Sensor with 80cm cable.
•RS01: for remote temperature sensing (1 required); for averaging
temperature at 4 locations (4 required) – the thermostat will control on the
average temperature of all 4 locations
•RS02: for averaging temperature at 2 locations (2 required) – the thermostat
will control on the average temperature of both locations
For details on where to purchase accessories, please contact Meitav-tec or
visit our web site at www.meitavtec.com

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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. (Next page)
Verify that you have 24 VAC between terminals
C and R.
Install the cover to the back panel; first the two
tabs on the bottom and then the top tongue.
Push until tight against the wall. Wait for 15
seconds for the LCD display to appear
(completion of power circuit charging and for
self-diagnostics).
3. Wiring Connections
Switch Function Switch Function
R 24Vac To External temperature sensor
C 24Vac T External temperature sensor
G Fan Y 0÷10Vdc output for Cooling
0 Ground for Y
W 0÷10Vdc output for heating
0 Ground for W
Please reference the stickers placed on top of screw terminal connectors on the
wall plate when wiring the unit (the designated terminals on the printed circuit board
are for internal (factory) use only).
“T”-“T0” Terminals can be used in any system configuration when Meitav-tec
external sensor is connected and the DIP switch is correctly configured.
On/Off C/F Set
Cool ON
OFF
Set
Lo
oC

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4. DIP Switch Configuration
4.1 The DIP switch is located at the bottom
right corner of the board as shown in the
drawing. (Inside the thermostat)
DIP switch S1 (3 switches) configuration
DIP Switch
settings
FUNCTION 1 2 3
Internal temp. sensor
(Default)
ON OFF ON
external temp. sensor OFF ON OFF
DIP switch S2 (4 switches) is not in use – all switches OFF
5. External sensor connection
The sensor must be MEITAV-TEC type.
N.TC. Sensor; Temperature ~ Resistance Characteristics
Temp °C7.2 10.0 12.8 15.6 18.3 21.1 23.9 26.7 29.4 32.2
Temp °F 45 50 55 60 65 70 75 80 85 90
Res. k 115.8 100.9 88.1 77.1 67.7 59.6 52.5 46.4 41.2 36.6
The default from factory is INTERNAL SENSOR.
- Disconnect power to the thermostat 24 Vac.
- Move DIP switch S1 to external sensor position (1-off, 2-on, 3-off)
- Connect external sensor to terminals T - To.
- Reconnect power to the thermostat.
The length of the cable for the external sensor is 100 feet (30 meters) with standard cable.
If longer distance is needed then the cable MUST be shielded.
1 2 3
ON
* default
DIP switch S1

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6. Technician Settings
6.1 Set differential for 0÷10Vdc.
The temperature Differential defines the ratio
between the opening level of the damper and the
temperature demand. The damper will be fully
opened when the demand (demand = ambient temp
– set temp) equals the differential.
(Differential range: 2°C÷10°C)
•Press and hold the MODE button – a number will
appear on the display.
•Adjust the differential using the “+” or “-” buttons.
(In the picture – the differential was 2°C and changed to 6°C)
6.2 Proportional output selection 0÷10Vdc or 2÷10Vdc
•Press the MODE button again - “0” and “SET” will
appear on display.
•Using the “+” button, change the scale to 2÷10Vdc
“2” will appear on display.
•Using the “-” button, change the scale to 0÷10Vdc
“0” will appear on display.
•Press the MODE button again to return to normal
display mode.
(In the picture – the scale was 2÷10Vdc and changed to 0÷10Vdc)
6.3 Set Offset for temperature reading.
The Offset is used for field calibration of the
measured temperature if necessary.
(Offset range -6°C÷6°C)
•Press the MODE button again – a number will
appear on the display.
•Change the Offset for ambient temperature using
the “+” or “-” buttons.
•Press the MODE button again or wait to return to
normal display mode.
(In the picture – the offset was 0°C and changed to -2°C)
Note: If no key is pressed for 5 seconds, the thermostat will automatically
return to normal display mode.
Set
On Off Mode
Off
Aux
Set
On Off Mode
Off
Aux
Set
On Off Mode
Off
Aux
Set
On Off Mode
Off
Aux
Set
On Off Mode
Off
Aux
Set
On Off Mode
Off
Aux

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7. Operating manual
7.1 Turn the thermostat on
•Press the ON button to activate the thermostat - The
word "ON" will appear on the display.
7.2 Turn the thermostat off
•Press the OFF button to deactivate the thermostat -
The word “OFF” will appear on the display.
7.3 Temperature set-point adjustment
•Press the “+” or “-” buttons - the set-point
temperature will flash and “COOL” and “SET” will
appear on display.
•Adjust the cooling set-point temperature using the
“+” or “-” buttons.
7.4 Select modes
•Press the MODE button to switch between the
different mode:
oCool
oHeat
oCool/Heat (Auto change-over)
oFan only
In Cool, Heat and Auto change-over modes, the words “Cool” or “Heat” will flash when
there is a demand for cooling or heating.
Rev 1
On Off Mode
OFF
oC
On Off Mode
ON
oC
On Off Mode
oC
ON
Set
Cool
On Off Mode
ON
oC
Set
Cool
On Off Mode
oC
ON
Cool
On Off Mode
oC
ON
Heat
On Off Mode
oC
ON
Cool
Heat
On Off Mode
oC
ON
Fan