Stelpro STE362RNP Electronic Thermostat User Guide

Stelpro STE362RNP Electronic Thermostat

Product Information: STE362RNP Electronic Thermostat

The STE362RNP is a user-friendly electronic thermostat manufactured by Stelpro. It is designed to regulate the temperature of heating systems in residential and commercial buildings. The  thermostat has a sleek and modern design with a large LCD display  that shows ambient temperature, heating power used indicator, fan mode, smart mode, security mode, and timer.

Warnings:

Users must take note of the following warnings:

• Ensure that the air vents of the thermostat are clean and clear of any obstruction.
• When making the connection with aluminum wire, make sure thatyou are using connectors identified CO/ALR.
• The actual product and packaging, as well as the name and illustration, may differ from the manual.

Thermostat Mounting and Connection

Follow these instructions to mount and connect your thermostat:

1. Cut off power supply on lead wires at the electrical panel in order to avoid any risk of electric shock.

2. Ensure that the air vents of the thermostat are clean and clear of any obstruction.

3. Loosen the screw retaining the mounting base and front part of the thermostat using a screwdriver. Remove the front part of the thermostat from the mounting base by tilting it upward.

4. Align and secure the mounting base to the connection box using the two screws supplied.

5. Take the wires from the wall through the hole at the base of the thermostat and connect them using the supplied solderless connectors. When making the connection with aluminum wire, make sure that you are using connectors identified CO/ALR. Please note that the thermostat wires do not have polarity. Therefore, the way they are connected is not important.

6. Reinstall the front part of the thermostat on the mounting base and tighten the screw at the bottom of the unit.

7. Turn on the power.

8. Set the thermostat to the desired setting (see the following section).

Operation

The thermostat has several features that make it easy to use and customize. Here are some of its key features:

• Pictograms: The LCD display features pictograms that indicate frost-free warning, day mode, night mode, ambient temperature/timer, heating power used indicator, fan mode, smart mode, and security mode.
• Temperature Set Points: The figures displayed above the pictogram indicate the temperature set point. It can be displayed in degrees Celsius or Fahrenheit (see Display in degrees Celsius/Fahrenheit).
• Day mode and Night mode: The current Day/Night mode selection is indicated on the display by the Sun or Moon icon. In order to manually switch from one mode to the other, simultaneously press down the two buttons and release them immediately.
• Night mode timer: The Night mode features a timer that automatically returns to the Day mode after a selectable time period. This timer allows the temporary use of a temperature set point. The standard factory adjustment of the timer is 8 hours. With this adjustment, the thermostat automatically returns to Day mode 8 hours after being switched to the Night mode.

For further information or to consult this guide online, please visit our Web site.

WARNING
Before installing and operating this product, the owner and/or installer must read, understand and follow these instructions and keep them handy for future reference. If these instructions are not followed, the warranty will be considered null and void and the manufacturer deems no further responsibility for this product. More-over, the following instructions must be adhered to in order to avoid personal injuries or property damages, serious injuries and potentially fatal electric shocks. All electric connections must be made by a qualified electrician, according to the electric and building codes effective in your region. Do NOT connect this product to a supply source other than 120 VAC, 208 VAC or 240 VAC, and do not exceed the load limits specified. Protect the heating system with the appropriate circuit breaker or fuse. You must regularly clean dirt accumulations on the thermostat. Do NOT use fluid to clean thermostat air vent. Do not install thermostat in a wet place. However, installing it in isolated walls is allowed.

Note:
When a part of the product specification must be changed to improve operability or other functions, priority is given to the product specification itself. In such instances, the instruction manual may not entirely match all the functions of the actual product.
Therefore, the actual product and packaging, as well as the name and illustration, may differ from the manual.
The screen/LCD display shown as an example in this manual may be different from the actual screen/LCD display

Description

The STE362RNP electronic thermostat can be used to control electric heating units such as electric baseboards, con-vectors, or aero convectors. It keeps the temperature of a room at the requested set point with a high degree of ac- curacy. This product is designed for installations with electrical current – with a resistive load -ranging from 2 A to 15 A (120/208/240  VAC). It possesses a user-friendly interface. Furthermore, it gives you the possibility to control the temperature of a room with great precision.
This thermostat is not compatible with the following installations:

• electrical current higher than 15  A with a resistive load (3600 W @ 240 VAC, 3120 W @ 208 VAC and 1800 W @ 120 VAC);
• electrical current lower than 2 A with a resistive load (480 W @ 240 VAC, 416 W @ 208 VAC and 240 W @ 120 VAC); and
• central heating system.

Parts supplied:

• one (1) thermostat;
• two (2) mounting screws;
• two (2) solderless connectors suitable for copper wires.

Installation

Selection of thermostat location
The thermostat must be mounted on a connection box on a wall facing the heating unit, at around 1.5 m (5 feet) above the floor level, on a section of the wall exempt from pipes or air ducts.
Do not install the thermostat in a location where temperature measurements could be altered. For example:

• close to a window, on an external wall, or close to a door leading outside;
• exposed directly to the light or heat of the Sun, a lamp, a fireplace or any other heat source;
• close or in front of an air outlet;
• close to concealed ducts or a chimney; and
• in a location with poor air flow (e.g. behind a door), or with frequent air drafts conditions (e.g. head of stairs).

Thermostat mounting and connection

1. Cut off power supply on lead wires at the electrical panel in order to avoid any risk of electric shock.
2. Ensure that the air vents of the thermostat are clean and clear of any obstruction.
3. Using a screwdriver, loosen the screw retaining the mounting base and front part of the thermostat. Remove the front part of the thermostat from the mounting base by tilting it upward.
4. Align and secure the mounting base to the connection box using the two screws supplied.
5. Take the wires from the wall through the hole at the base of the thermostat and connect them using the supplied solderless connectors. When making the connection with aluminum wire, make sure that you are using connectors identified CO/ALR. Please note that the thermostat wires do not have polarity. Therefore, the way they are connected is not important. 2-wire installation
6. Reinstall the front part of the thermostat on the mounting base and tighten the screw at the bottom of the unit.
7. Turn on the power.
8. Set the thermostat to the desired setting (see the following section).

Powering on for the first time
When powering on for the first time, the thermostat is initially set to ‘Day’ mode. The temperature is displayed in Celsius and is set at 21 degrees by default.

Temperature set points
The figures displayed above the pictogram indicate the temperature set point. It can be displayed in degrees Celsius or Fahrenheit (see “Display in degrees Celsius/Fahrenheit”).
To adjust the set point, just press down the top button to increase the value, or the bottom button to decrease it. Set points can be adjusted by increments of 0.5°C or 1°F. To quickly scroll through the set point values, press and hold down the button. The minimum set point is 3°C (37°F), and the maximum set point is 30°C (86°F). In Day mode, you can turn off the thermostat by lowering the set point below 3°C.
The set point value displayed will be –.-, and heating system start up will be impossible.

Day mode and Night mode
The thermostat includes a Day mode and a Night mode, both of them having their own independently adjustable and recorded set point. When switching from one mode to the other, the system will automatically use the temperature set point corresponding to the Day/Night mode selected. The standard factory set point adjustment is 21°C (70°F) for the Day mode, and 18°C (64°F) for the Night mode.
The current Day/Night mode selection is indicated on the display by the Sun or Moon icon. In order to manually switch from one mode to the other, simultaneously press down the two buttons and release them immediately.

Night mode timer
The Night mode features a timer that automatically returns to the Day mode after a selectable time period. This timer al-lows the temporary use of a temperature set point. The stan-dard factory adjustment of the timer is 8 hours. With this ad-justment, the thermostat automatically returns to Day mode 8 hours after being switched to the Night mode.
For example, if you want a night temperature lower than the day temperature, both Day/Night modes set points will first have to be set at the desired temperatures. Before bedtime, the Night mode temperature set point will be activated by switching manually to the Night mode. The timer is set for the duration of the night. The thermostat will automatically return to the Day mode at the end of the night, and the Day mode temperature set point, which is higher, will become effective at this time.

Night mode timer adjustment procedure

1. If necessary, adjust the Day/Night mode set points at the desired temperatures. If needed, switch from one mode to the other by simultaneously pressing down the two but-tons and releasing them immediately.
2. From the Night mode, simultaneously press down the two buttons for more than 3 seconds until the Moon icon blinks and the letter H appears.
3. If needed, adjust the timer by pressing down the top but-ton to increase the value, or the bottom button to decrease it. The adjustment range is from 1 hour to 999 hours. To quickly scroll through timer values, press and hold down the button.
4. When the adjustment is completed, release the buttons and wait for 5 seconds to exit the adjustment function.
   NOTE: The Night mode timer will be automatically reinitialized to the latest recorded value when switching from the Day mode to the Night mode. It is not necessary to readjust the timer every time you switch to the Night mode. The timer is also reinitialized when this value is adjusted. Once the timer has completed its cycle and when the thermostat is in the Day mode, you must manually return to the Night mode. If you want to automatically return to the Night mode, the Smart mode must be selected.

Smart mode
The Smart mode, which is associated to the Night mode timer, allows alternating between the Day/Night modes and the two corresponding set points over a 24-hour period. Once activated, this mode allows an automatic return to the Night mode after 24 hours. The Smart mode allows you to define two periods in a single day with different set points.
For example, if the Smart mode is activated and the Night mode timer is set at 8 hours, the thermostat will be operating in the Night mode for 8 hours at the night temperature set point. Then, it will return to the Day mode for 16 hours operating at the day temperature set point. At the end of the 24-hour cycle, the thermostat will return to the Night mode, and the cycle will start again. The 24-hour cycle starts with the Night mode as soon as the Smart mode is activated. The Smart mode activation should be made when you want to return to the Night mode. The normal course of a cycle in the Smart mode is as follows:

1. Night mode: activated for the duration of the Night mode timer cycle. It returns to the Day mode when the timer cycle is completed.
2. Day mode: activated for the remaining time of the 24-hour cycle. It returns to the Night mode at the end of the 24-hour cycle.

Adjustment procedure of the Smart mode:

1. If necessary, adjust the Day/Night set point at the desired temperatures. If needed, switch from one mode to the other by simultaneously pressing down the two buttons and releasing them immediately.

2. From the Night mode, simultaneously press down the two buttons for more than 3 seconds. If needed, adjust the timer by pressing down the top button to increase the value, or the bottom button to decrease it. The Night mode timer adjustment range is from 1 hour to 23 hours in the Smart mode. To quickly scroll through the timer values, press and hold the bottom button.
   NOTE: If you set the timer to any value exceeding 23 hours, it will be impossible to activate the Smart mode and if it was activated, the Smart mode will be deactivated.

3. Activate the Smart mode by simultaneously pressing down the two buttons for at least 3 seconds. The ****icon will appear. If the Smart mode was already activated, the same procedure should be used to deactivate it.

4. When the adjustment is completed, release the buttons and wait for 5 seconds to exit the adjustment function.
   NOTE: It is always possible to manually change the Day/Night mode during a 24-hour cycle. However, any manual return to the Night mode will re- initialize the Night mode timer to the latest value recorded, which modifies the cycle in progress. In all cases, at the end of the 24-hour cycle, the thermostat will return to the Night mode and start a new cycle. It is thus not necessary to readjust the Smart mode when a manual change is made to the Day/Night mode.
   When turning back on after being powered off (be-cause of a power outage, for example), the automatization of the Day/Night modes is deactivated, and, if previously activated, the icon ****will blink. The blinking will stop as soon as you press down a button.

Display in degrees Celsius/Fahrenheit
The thermostat can display the ambient temperature and the set point in degrees Celsius (standard factory setting) or Fahrenheit.
Selection procedure for degree Celsius/Fahrenheit dis-play.

1. From the Day mode, simultaneously press down the two buttons for more than 3 seconds.
2. Press down the top button to switch from the degrees Celsius to the degrees Fahrenheit, and conversely. The degree Celsius or Fahrenheit symbol will be displayed.
3. When the adjustment is completed, release the buttons and wait for 5 seconds to exit the adjustment function.

Temperature Control
The thermostat controls the temperature of the ambient air with precision. When the heating comes on or shuts off, it is normal to hear a « click ». This noise is caused by the relay opening or closing, depending on the situation.

Programmable Heating Cycle
This setting allows the length of a heating cycle to be adjusted. To activate this programmable heating cycle setting, the ther-mostat should be in Day mode and the user must press down on the two buttons for 20 seconds. Note that the pictogram displaying the degrees (C or F) will blink after three seconds, will stop blinking after 13 seconds and a Lock icon will appear or disappear depending on the setting (the thermostat Secu-rity mode). It is important to keep the two buttons pressed down to avoid switching to one of these settings. After the 20 seconds, the 2 larger scale numbers on the LCD screen will display the number of minutes for a heating cycle. There will also be a smaller case ‘C’ to indicate cycle. The programmable heating cycle can be adjusted between 8 and 15 minutes.

Heating Power Indicator
The level of power used to maintain the temperature at the set point is expressed as a percentage indicated by the num-ber of bars in the thermometer displayed. The heating power used is displayed as follows:

Frost-free warning
The Snowflake icon is displayed when the temperature set point is between 3°C (37°F) and 5°C (41°F). A minimum temperature will be maintained to ensure frost control.

Security mode
It is possible to impose a maximum temperature set point by activating this mode. Then, it becomes impossible to exceed this set point, regardless of the current mode (Day/Night). However, it is still possible to lower the set point at your discretion.
Procedures to activate the Security mode

1. To activate the Security mode, from the Day mode adjust the day setpoint to the desired maximum temperature.
2. From the Day mode, simultaneously press down the two buttons for more than 13 seconds, until the ****icon dis-plays (note that the °C or °F will appear after 3 seconds continue to keep both buttons pressed down or you will find yourself in the degree adjustment mode or in Fan mode)
3. Release the buttons. The thermostat is now locked.

Procedures to deactivate the Security mode

1. To deactivate Security mode, start by cutting thermostat power at circuit breaker and wait at least 20 seconds.
2. Turn thermostat power back on and the icon ****blink for a maximum of 5 minutes.
3. Simultaneously press both buttons for 13 seconds. (Note that the pictogram displaying the degrees (C or F) will blink after three seconds, it is important to keep the two buttons pressed down to avoid switching to the adjustment or Fan mode). After 13 seconds, the icon ****will disappear and the degrees symbol (C or F) will stop blinking; indicating that the Security mode is deactivated. Release the buttons.

Fan mode
The activation of the Fan mode is similar to the Celsius/Fahrenheit adjustment. To activate or deactivate Fan mode, you must press down both buttons simultaneously for at least 3 seconds while in Day mode. Once the 3 seconds have passed, C or F will blink. At this point, release the buttons. You must then press down on the bottom button to activate or deactivate the Fan mode. The fan pictogram will turn on or off depending on the case.
When Fan mode is activated, the stop or minimum heating time (OFF/ON) for a complete 15 minute cycle is established at 5 minutes. This is done to limit the amount of time the thermostat will turn on or off. Also, if the thermostat reaches a differential superior or inferior to the 2 degrees requested, it will shut off before the end of the minimum heating time of 5 minutes. The deactivation of the Fan mode will cause the thermostat to go back to the heating cycle previously programmed. Once the adjustment finished, you can exit the Fan mode by not pressing down on any buttons for 5 seconds.

Saving the parameters and power failures
The thermostat saves some parameters in a non-volatile memory to be able to recover them after being shut off (a power failure, for example). These parameters are the Day/Night settings, the Smart mode, the state of the Security mode, the maximum setting of the Security mode, the Celsius/Fahrenheit mode, the Fan mode, the ideal changeover time of the relay and the number of minutes associated to a heating cycle, the number of hours of the night time-switch, the number of hours remaining on the night time- switch and the day/night current. These parameters are saved every minute if any changes are made, except for the Day/Night mode and the remaining time left on the time-switch. These are saved only if the Security mode had not been activated.

Please note that the Smart mode is not automatically reactivated when thermostat is turned on. The icon blinks to warn the user that the mode was previously activated when thermostat was shut off but is no longer active.
Furthermore, when power is shut off, the existing Day/Night mode is recovered only if the Smart mode was previously deactivated. In the opposite case, the Day mode is automatically reactivated. The Security mode is also reactivated if it was activated before being shut off. However, the icon will blink for 5 minutes, during which it is possible to deactivate the Security mode by pressing down on the top and bottom buttons simultaneously for 13 seconds. If this is not done, the Security mode will stay activated and the icon will stop blinking.

Troubleshooting

housing can reach nearly 40°C at maximum load. That is normal and will not affect the effective operation of the thermostat.
Heating is always on.| Check if the thermostat is properly connected. Refer to the installation section.
Heating does not run even if the thermostat indicates it is on.| Check if the thermostat is properly connected. Refer to the installation section.
The display does not come on.| Check if the thermostat is properly connected. Refer to the installation section.
Check the power supply at the electrical panel. Check if the heating unit has a switch. If so, ensure that this switch is turned on.
The display turns off a few minutes and then turns on again.| The thermal protection of the heating unit has opened due to overheating. Check if the heating unit is in good condition of operation and that clearance around the appliance is according to the manufacturer’s specifications.
The display has low contrast when heating is on.| The load is lower than the minimum load. Install a heating unit that is within the load limits of the thermostat.
The displayed ambient temperature is incorrect.| Check the presence of an air stream or a heat source near the thermostat, and correct the situation.
The display indicates E1 or E2.| Faulty thermal sensor. Contact the customer service.
---|---
Weak luminosity of the display.| Possibility of a bad contact. Check thermostat wirings. Refer to the installation section.

N.B. If you are unable to solve the problem after having verified these points, please communicate with our customer service. Consult our website for the phone numbers.

Technical Specifications

• Supply voltage: 120/208/240 VAC, 50/60 Hz

• Maximum electrical current with a resistive load:
  15 A
  3600 W @ 240 VAC
  3120 W @ 208 VAC
  1800 W @ 120 VAC

• Temperature display range: 3°C to 40°C (37°F to 99.5°F)

• Temperature display resolution: 0.5°C (0.5°F)

• Temperature set point range: 3°C to 30°C (37°F to 86°F)

• Temperature set point increments: 0.5°C (1°F)

• Storage temperature: -40°C to 50°C (-104°F to 122°F)

Limited Warranty

This unit has a 3-year warranty. If at any time during this period the unit becomes defective, it must be returned to its place of purchase with the invoice copy, or simply contact our customer service department (with an invoice copy in hand). In order for the warranty to be valid, the unit must have been installed and used ac-cording to instructions. If the installer or the user modifies the unit, he will be held responsible for any damage resulting from this modification. The warranty is limited to the factory repair or the replacement of the unit, and does not cover the cost of disconnection, transport, and installation.

Customer service
Stelpro Design inc.
1041, Parent Street
Saint-Bruno-de-Montarville (Quebec) Canada J3V 6L7
Email: contact@stelpro.com
Web site: www.stelpro.com

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