STELPRO ST302NP Non Programmable Electronic Thermostat for Baseboards and Convectors Owner’s Manual

: June 5, 2024
: StelPro

Table of Contents

STELPRO ST302NP Non Programmable Electronic Thermostat for Baseboards and
IMPORTANT INSTRUCTIONS
TECHNICAL SPECIFICATIONS
BEFORE YOU GET STARTED
INSTALLATION
INTERFACE
INITIAL SETTINGS
FEATURES
STELPRO LIMITED WARRANTY
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STELPRO ST302NP Non Programmable Electronic Thermostat for Baseboards and

Convectors

IMPORTANT INSTRUCTIONS

THE THERMOSTAT MUST BE INSTALLED BY A CERTIFIED ELECTRICIAN.
Connect the thermostat to a 120 to 240 VAC power source ONLY and comply with load limits.
WARNING – HIGH VOLTAGE. Turn off the power supply before installation and maintenance. Leave at least 12 in. (30 cm) clearance around the thermostat to ensure that it is properly vented.

SAVE THESE INSTRUCTIONS

TECHNICAL SPECIFICATIONS

120-240

| 150-1250| 300-2500
ST302NP| 150-1500| 300-3000
ST402NP| 150-2000| 300-4000
Load control type| Resistive
---|---
Frequency| 60 Hz
Storage temperature| -40 °C to 50 °C (-40 °F to 122 °F)
Operating temperature| -20 °C to 50 °C (-4 °F to 122 °F).

LC display less effective below 0 °C (32 °F)

Humidity| 5 % to 98 % without condensation
Action| Type 1.Y
Pollution degree| 2
Software| Class A
Rated impulse voltage| Category II (1500 V)
Independently mounted control for surface mounting
Thermistor used as a sensor, carries no load current
Overload protection device external to the control: circuit breaker (refer to local electrical code)

BEFORE YOU GET STARTED

The box contains one (1) thermostat with mounting plate, two (2) mounting screws, two (2) twist-on wire connectors and one (1) owner’s manual.
To install this thermostat, you will need a #2 Phillips screwdriver.
Install your thermostat about 5 ft (1.5 m) from the floor on an inside wall facing the heating system.

INSTALLATION

ATTACH THE MOUNTING PLATE

WARNING: Turn off the power supply.

Loosen the screw [A] at the top of the thermostat without removing it.
Separate the mounting plate from the thermostat. Pull the top of the plate and rotate.
Take the power wires [B] out of the junction box and run them through the large opening in the center of the mounting plate [C].
Using the two (2) mounting screws provided [D], attach the thermostat mounting plate to the junction box. The plate can be centered on the junction box or shifted to the left or right.

SUPPLY WIRESCONNECT THE POWER

WARNING : Incorrectly connected electrical wires could result in a fire hazard. STELPRO-ST302NP-Non-Programmable-Electronic-Thermostat-for-
Baseboards-and-Convectors-fig3

Complete the thermostat’s electrical connection according to the diagram below. Tighten the wires securely in the supplied wire connectors.
Push the wires and connectors into the electrical box.

NOTE: If the electrical wires are aluminum, use CO/ALR connec-tors instead (not supplied).

ATTACH THE THERMOSTAT

Using the alignment guide, hook the bottom [A] of the thermostat into the bottom of the plate. Be sure not to jam the wires between the thermostat and mounting plate.
Rotate the thermostat up-wards and attach it on the top hook of the mounting plate.
Tighten the screw at the top of the thermostat [B] to hold it in place securely.
Restore the power at the circuit breaker.

NOTE : If you need to remove the thermostat, follow step 1 in section 1, then use a straight screwdriver to unhook it from the top of the mounting plate

INTERFACE

This is a NON-PROGRAMMABLE thermostat. The temperature setpoint remains constant unless you change it.
Touch the keypad once to activate the backlight, then you can make changes.

Displays only when using the advanced menus.

INITIAL SETTINGS

To begin with, follow the on-screen instructions to adjust your thermostat’s settings. Press or to change your selection and to confirm.

Temperature format: °C / °F (Celsius / Fahrenheit)
ECO mode setpoint temperature: (5 °C to 30 °C / 41 °F to 86 °F). By default, the ECO mode setpoint is 17 °C / 63 °F.

Your heating needs may vary according to the season and even the time of day. To meet your needs, this thermostat is equipped with two distinct modes: ECO and COMFORT. You can switch from one mode to another by simply pressing . ECO mode saves you money by providing a more energy-efficient setpoint tempera- ture when you’re sleeping or away from home.

YOUR THERMOSTAT IS NOW READY TO USE!

FEATURES

KEY FEATURES

Press or once to lower or raise the setpoint temperature by 0.5 °C / 1 °F. The setpoint temperature will remain at this value until it is changed.
NOTE : If you change the setpoint temperature while in ECO mode, the thermostat will switch to COMFORT mode.
Press once to switch from ECO mode to COMFORT mode and vice versa.

ADVANCED MENU ACCESS AND USE

Press and hold for 3 seconds to access the thermostat’s advanced menus.
Press or to change your selection.
Press to confirm your selection and proceed to the next menu.
Press and hold for 3 seconds to exit the advanced menus.

ADVANCED MENUS LIST

10 – Temperature format: °C / °F (Celsius / Fahrenheit)
20 – ECO mode setpoint temperature (5 °C to 30 °C / 41 °F to 86 °F). By default, the ECO mode setpoint is 17 °C / 63 °F.
30 – Keypad lock: ON / OFF (Lock keypad / Unlock keypad)
dEF – Reset thermostat to default values: N / Y (No / Yes)

USING THE TECHNICAL MENUS:

Press for 10 seconds to access the thermostat’s technical menus (the advanced menu will appear after 3 seconds but continue to hold for another 7 seconds).
Use ou to change your selection.
Press to confirm your selection and continue to the next menu.
Press for 3 seconds to exit the thermostat’s technical menus.

TECHNICAL MENU LIST

t1: Maximum room temperature setpoint limit (5°C to 30°C / 41°F to 86°F). The default setting is 30°C.
t2: Minimum room temperature setpoint limit (5°C to 30°C / 41°F to 86°F). The default setting is 5°C.

NOTE: The maximum setpoint limit must be higher than the mini-mum setpoint limit, and the minimum setpoint limit must be lower than the maximum setpoint limit.

t3: Year of production
t4: Month of production
t5: Identification number
t6: Software version
t7: Thermostat control code