Attractive modern look with large LCD and backlight
Stages 1 heat / 1 cool
Fan on / auto
Precise temperature control with programmable PI function
Lockable Set point and adjustable range
Selectable internal or external temperature sensor
Celsius or Fahrenheit scale selectable
1 input (external temperature sensor 10Kohms) 1 Fan (G) dry contract 24Vac, 1Amax 3A in-rush 1 Compressor (Y1) dry contract 24Vac, 1Amax 3A in-rush 1 Reversing valve (O/B) dry contract 24Vac, 1Amax 3A in-rush 22 to 26 VAC 50/60Hz 1 VA max 10ºC to 40ºC [50ºF to 104ºF] Temperature: +/-0.4ºC [0.8ºF] 0.5ºC to 5ºC [1ºF to 10ºF] adjustable (heat/cool/reheat independent) 0.3ºC to 5ºC [0.6ºF to 10ºF] adjustable (heat/cool/reheat independent) 2 0.8 mm [18 AWG] minimum 0ºC to50ºC [32ºF to122ºF] -30ºC to +50ºC [-22ºF to +122ºF] 5 to 95 % non condensing IP 30 to (EN 60529) 160 g. [0.36 lb]
Outputs Power supply Power consumption Set point range Control accuracy Proportional band Dead band Electrical connection Operating temperature Storage temperature Relative Humidity Degree of protection of housing Weight
Presentation V MAX
Symbols on display Cooling ON activated output A: Automatic Heating ON activated output A: Automatic Fan ON activated output A: Automatic
Menu set-up Lock Programming mode (Technician setting)
Celsius scale Cor F ºC: ºF: Fahrenheit scale
Dimension A B C D E
Inches 2.85 4.85 1.00 2.36 3.27
Metric (mm) 73 123 24 60 83
Specification & Installation instructions
Mounting Instructions A
CAUTION: Risk of malfunction. Remove power prior to separate thermostat cover from its base. A. Remove the screw (captive) holding the base and the front cover of the thermostat. B. Lift the front cover of the thermostat to separate it from the base. C. Pull wire through the base hole. D. Secure the base to the wall using wall anchors and screws (supplied). Make the appropriate connections. E. Mount the control module on the base and secure using the screw.
Common 24 VAC
6 7 8 9 10 11 12
Not used Separate external 24 VAC Compressor output Reversing valve output Fan output Not used External Temp. Sensor (optional)
R Y O/B G -
Settings on PC Board Digital output selection (JP2) Jumper (JP2) on 24V: All digital outputs are linked to (24V) terminal 2.
Jumper (JP2) on R: All digital outputs are linked to (R) terminal 7.
9 10 11 12
Digital output selector
Connecting strip TB1
Power supply 24 VAC
Comp. Rev. Valve Fan
Power supply 24 VAC 24VAC COM
Comp. Rev. Valve Fan
Connect 24 VAC on pin 7 (R) only if a separate 24V transformer is used. Jumper JP2 on R. Temperature sensor
Mode Selection (JP3)
JP3 RUN PGM
Jumper (JP3) on RUN: Thermostat is in operation mode. Thermostat must be set in this mode to operate properly. If not locked, set point, control mode and speed fan (Heating & Cooling ON, Cooling only ON or Heating only ON) may be modified by end user.
JP3 RUN PGM
Jumper (JP3) on PGM: Thermostat is set in Programming mode. Refer to following section about all settings description
Specification & Installation instructions
Programming mode When in this mode this symbol is displayed. Please press on button to advance to the next program function, press on button to return to preceding stage and press on button or to change value. You can leave the programming mode at any time, changed values will be recorded. Step
Description Internal temperature sensor Calibration: Display shows “inside temper sensor offset” and temperature read by internal temperature sensor. You can adjust the calibration of the sensor by comparison with a known thermometer. For example if thermostat has been installed in an area where temperature is slightly different than the room typical temperature (thermostat place right under the air diffuser). Minimum set point: Display shows “adjust minimum user setpnt” and the minimum set point temperature. Please select the desired minimum set point temperature. The minimum value is restricted by the maximum value. (step #3).
Minimum range: 10 to 40ºC [50 to 104ºF] Increment: 0.5ºC [1ºF] Default value: 15ºC [59ºF]
Adjust internal set point: Display shows “adjust intern setpnt” and the set point temperature. Select the desired set point temperature; this one should be within the temperature range. Lock symbol will appear if the set point was locked at the previous step.
Default value: Unlocked (NO)
Set point range: 10 to 40ºC [50 to 104ºF] Increment: 0.5ºC [1ºF] Default value: 22ºC [72ºF]
Set point value is restricted by the minimum and maximum value. (step #2 & 3) Anti-cycling delay compressor contact (protection for compressor): Display shows “compres anti cycle minutes” and the value (in minutes) of the delay to activate / deactivate compressor contact. Range: 2, 4 or 6 min. Please select the desired value of the delay compressor contact. Increment: 2 min. Default value: 2 min.
Range : 10 to 40ºC [50 to 104ºF] (max. offset ± 5 ºC) Increment: 0.1ºC [0.2ºF]
Maximum set point: Display shows “adjust maximum user setpnt” and the maximum set point Maximum range: temperature. 10 to 40ºC [50 to 104ºF] Please select the desired maximum set point temperature. Increment: 0.5ºC [1ºF] Default value: 30ºC [86ºF] The maximum value is restricted by the minimum value. (step #2)
Locking the set point: Display shows “user setpnt locked” and the status of the function. You can lock or unlock the set point adjustment by end user. If locked, “yes” and lock symbol will appear.
External sensor selection: Display shows “extern sensor temper”. Please select which sensor is rewired to the analog input: OFF (input none rewired), t10.0 (external temperature sensor 10.0 KΩ) Default value: Off When nothing “OFF” is selected, the thermostat is controlled by is internal temperature sensor. When external sensor “t10.0” is selected, the thermostat is controlled by an external temperature sensor. If you have selected OFF, go directly to step #26. External temperature sensor Calibration: Display shows “extern temper sensor offset” and temperature read by external temperature sensor. Range: 0 to 50ºC [41 to 122.0ºF] If the sensor is not connected or short circuited, the display shows (max. offset ± 5 ºC) “Eror”. Increment: 0.1ºC [0.2ºF] You can adjust the calibration of the external sensor by comparison with a known thermometer. 3
Please select the desired value of compressor contact operating differential.
Differential range: 0.3 to 3.0ºC [0.6 to 6.0ºF] Increment: 0.1ºC [0.2ºF] Default value: 0.5ºC [1.0ºF]
Reversing valve energize: Display shows “revers valve o/b”. Cooling or heating symbols are also displayed. Please select if the reversing valve is energized in cooling mode (O) or in heating mode (B).
Operation mode Step
At powering up, thermostat will light display and activate all LCD segments during 2 seconds. Illuminating the LCD. To illuminate the LCD, you just have to push onto any of the 4 buttons. LCD will light for 4 seconds. Temperature display In operation mode, thermostat will automatically display temperature read. If “OFF”, “- - -” and alarm symbol are displayed, the temperature sensor is not connected or short circuited.
Default value: Energises in cooling (O)
To change the scale between ºC and ºF, press on both and for 3 seconds. Temperature set point display and adjustment To display the set point, press two times on or . Set point will be displayed during 3 seconds.
To adjust set point, press on or while the temperature set point is displayed.
Note: If set point adjustment has been locked,
Control mode selection : To change the control mode, press on can choose one of the following:
. Control mode will be displayed during 5 seconds. You
Automatic Cooling or Heating Cooling and Heating OFF Cooling only Heating only
Fan speed mode selection: To change the fan speed mode, press on You can choose one of the following:
symbol will be displayed.
. Fan speed mode will be displayed during 5 seconds.
Automatic speed On
Recycling at end of life At end of life, please return the thermostat to your Neptronic® local distributor for recycling. If you need to find the nearest Neptronic® authorized distributor, please consult www.neptronic.com.
Heat Pump Thermostat - Neptronic
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