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SMART TEMP SMT-131 Hotel Touchscreen Thermostat User Manual

27

SMT - 131

Manual

Ver 2.7

30/3/23

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General	Details
Name	SMART TEMP SMT-131 Hotel Touchscreen Thermostat User Manual
Make	SMART TEMP
Language	English
Filetype	PDF (Download)
File size	0.34 MB

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Smart Temp SMT-131 Hotel Manual: Questions and Answers

Smart Temp SMT-131 Hotel specifications

Setpoint range	5°C to 30°C (41°F to 86°F)
Differential	0.5°C to 5.0°C in 0.5°C Steps
Operating temperature	0°C to 50°C (32°F to 122°F)
Storage temperature	0°C
Dimensions	113 x 103 x 25mm
Communication	Modbus RTU (Slave)
Warranty	3 Year RTB

Full specifications, page 27

Can Smart Temp work with remote temperature sensors for larger areas?

Yes. Multiple remote sensors can be wired to the SI and Com 0-V terminals and configured to average across larger areas. User Manual, p. 14

What do the chirp sounds mean on this thermostat?

Sound	Meaning
2 chirps	Thermostat turned ON
1 chirp	Thermostat turned OFF

User Manual, p. 15

How do I navigate through the Smart Temp SMT-131 Hotel installer menu?

Use the bottom right button to step forward and bottom left button to step backward through options. Adjust values with the up/down buttons.

Press bottom right or bottom left to move between menu options.
Use up/down buttons to adjust the current setting.
Press and hold the bottom right button to save and exit, or wait 3 minutes for automatic exit. User Manual, p. 15

Difference between Forward and Reverse action on Smart Temp SMT-131 Hotel 0-10V outputs?

Direction	Behavior
Forward action	0V = 0% open, 10V = 100% open
Reverse action	0V = 100% open, 10V = 0% open

User Manual, p. 7

How do I enable 2 Pipe Mode on Smart Temp?

Set DIP 2 OFF and DIP 4 ON. Then in the installer menu set option 27 to option 3.

Set DIP 2 to OFF position
Set DIP 4 to ON position
Open installer menu option 27 (Si & Com 0-V)
Select option 3 for 2 Pipe Mode User Manual, p. 8

What is the default interval for 0-10V fan outputs?

60 seconds. Register 40049 allows adjustment from 10 to 300 seconds in 10 second steps. User Manual, p. 24

How do you adjust the temperature reading if the sensor seems inaccurate?

Use register 40074 to apply a calibration offset from -9.9 to +10°C, and register 40075 to change sensor response speed from Very Fast to Very Slow. User Manual, p. 26

How do I factory reset the Smart Temp SMT-131 Hotel?

Set the Factory Reset parameter to 1 (Yes) and exit to initiate the reset.

Navigate to the Factory Reset parameter marked as 'r' in the controls list.
Change the value from 0 (NO) to 1 (Yes).
Exit the menu to initiate the factory reset. User Manual, p. 18

What temperature calibration offset range does Smart Temp SMT-131 Hotel support?

−9.9°C to +10°C with a default of 0.0, allowing correction to the room or remote temperature sensor reading. User Manual, p. 18

Smart Temp SMT-131 Hotel compared with other HVAC thermostats

Specification	Smart Temp SMT-131 Hotel	Contemporary Controls BAST-421C-B2 BACnet	PECO T8168 Performance Pro
Setpoint range	5°C to 30°C (41°F to 86°F)	32-122°F (0-50°C) in 0.5° (°F or °C) increments	50° to 90° F (10° to 32° C)
Differential	0.5°C to 5.0°C in 0.5°C Steps	0-18° (default 4°)	1° F (0.5°C)
Operating temperature	0°C to 50°C (32°F to 122°F)	32 to 122°F (0 to 50°C)	0° to 120°F (-18° to 49°C)