OUELLET OTH24 Low Voltage Non Programmable Electronic Thermostat Owner’s Manual

1

OTH24  

OTH24-AFR  

Low Voltage Non Programmable Electronic  

Thermostat (2 outputs)  

Low Voltage Programmable Electronic  

Thermostat (2 outputs)  

Features  

Type  

• Low voltage electronic thermostat.  

can be turned ON or turned OFF (used for heating system with a purge).  

• Pump exercise OFF/ON (if set to ON, the thermostat activates its main  

output for 1 minute every 24 hours to prevent pump from seizing).  

• Resolution: 0.5 °C (1 °F).  

Color  

• Standard: white.  

Display  

• Digital display of ambient temperature (°C or °F), heating level indicator  

and temperature setpoint.  

• Backlit - permanent or activated on request.  

• Temperature setting recorded permanently.  

Voltage  

• 24Vac, 50/60 Hz.  

Power  

• 1A per output (2 outputs).  

Mode  

• First output (main):  

A mode: Ambient temperature control.  

Note: Floor temperature can be controlled using an external tempera-  

ture sensor when a floor heating cable is used as the heating source.  

F mode: Floor temperature control using an external temperature  

sensor with ability to control the ambient temperature.  

• Second output (auxiliary):  

Temperature range  

• 5 °C to 36 °C (41 °F to 97 °F).  

Storage Temperature  

• -20 °C to 50 °C (-4 °F to 158 °F).  

Installation  

• 3-wire thermostat (minimum).  

Application  

The second output is activated if the first heating system controlled  

by the first output cannot reach the temperature setpoint.  

• 2 low voltage outputs that can be connected using a 24V relay and  

a transformer to control electric baseboard heaters, convectors,  

forced-air convectors, electric heating floors, water pumps and boilers.  

Note: Select the cycle according to the type of heating.  

Control  

• 15-second cycle or 5, 10, 15, 20, 25, 30-minute cycle (individually  

adjustable on each output).  

• Adjustment of the minimum Time ON and minimum Time OFF  

on the main output. Defines the minimum time for which the output  

Warranty  

• 3-year warranty against defects.  

OTH24-AFR Features  

Configuration  

Program  

• 4 programming modes:  

• No freeze: The thermostat maintains a temperature setpoint  

of 5 °C (41 °F).  

• "Installer" configuration menu used to lock certain thermostat  

functions with a 4-digit code. Ideal for restricting access to  

programming functions or to the temperature setpoint.  

• Manual: All settings must be adjusted manually.  

• Automatic: The thermostat automatically changes the temperature  

settings according to the programmed settings:  

• "5-2": One program for weekdays and one for the weekend.  

• "7": A different program for every day of the week.  

• Off (Sleep mode).  

Mode  

• First output (main):  

P mode: Proportional control with fixed cycle rate. This mode works  

without using a temperature sensor (ideal for controlling radiant  

heating units).  

• "Boost" (timer) function on the auxiliary output (only available  

in Ambient or Proportional mode).  

Models  

Product # Price Description  

Amp. Volts  

OTH24 62.00  

Low voltage non programmable electronic thermostat (2 outputs)  

1A  

24  

OTH24-AFR 109.00 Low voltage programmable electronic thermostat (2 outputs)  

Products Catalog 2023 • www.ouellet.com  

167  

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General	Details
Name	OUELLET OTH24 Low Voltage Non Programmable Electronic Thermostat Owner’s Manual
Make	OUELLET
Language	English
Filetype	PDF (Download)
File size	0.05 MB

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• OUELLET

OUELLET OTH24 Low Voltage Non Programmable Electronic Thermostat Owner’s Manual Overview

Summary of Contents

• Page 1: Low voltage non programmable electronic thermostat (2 outputs) Low voltage programmable electronic thermostat (2 outputs) Features include pump exercise OFF/ON to prevent pump from seizing. Digital display shows ambient temperature, heating level indicator, and temperature setpoint. Temperature setting is recorded permanently. The second output activates if the first heating system cannot reach the temperature setpoint. 15-second cycle or adjustable cycles from 5 to 30 minutes on each output. 3-year warranty against defects. Four programming modes include no freeze, manual, automatic, and off (sleep mode). Proportional control mode works without a temperature sensor, ideal for radiant heating units.