STELPRO ST252NP Non-Programmable Electronic Thermostat Owner’s Manual

STELPRO ST252NP Non-Programmable Electronic Thermostat

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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.

TECHNICAL SPECIFICATIONS

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.

1. Loosen the screw  [A]  at the top of the thermostat without removing it.
2. Separate the mounting plate from the thermostat. Pull the top of the plate and rotate.
3. 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].
4. Using the two (2) mounting screws provided  [D],  attach the thermostat mounting plate to the junction box. The plate can be cantered on the junction box or shifted to the left or right.

CONNECT THE POWER SUPPLY WIRES

WARNING:  Incorrectly connected electrical wires could result in a fire hazard.

1. Complete the thermostat’s electrical connection according to the diagram below. Tighten the wires securely in the supplied wire connectors.
2. Push the wires and connectors into the electrical box.
   NOTE:  If the electrical wires are aluminium, use CO/ALR connectors instead (not supplied).

ATTACH THE THERMOSTAT

1. 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.
2. Rotate the thermostat upwards and attach it on the top hook of the mounting plate.
3. Tighten the screw at the top of the thermostat  [B]  to hold it in place securely.
4. 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.

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 temperature when you’re sleeping or away from home.
YOUR THERMOSTAT IS NOW READY TO USE!

FEATURES

KEY FEATURES

1. 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.

2. Press once to switch from ECO mode to COMFORT mode and vice versa.

ADVANCED MENU ACCESS AND USE

1. Press and hold  ⊡  for 3 seconds to access the thermostat’s advanced menus.
2. Press  < or  >  to change your selection.
3. Press  ⊡  to confirm your selection and proceed to the next menu.
4. 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:

1. 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).
2. Use  < ou > to change your selection.
3. Press  ⊡  to confirm your selection and continue to the next menu.
4. 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 minimum 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

WARRANTY

STELPRO LIMITED WARRANTY

Limited three-year warranty. See details on www.stelpro.com. STELPRO DESIGN INC. Saint-Bruno- de-Montarville, Québec, Canada, J3V 6L7 INS-ST252-302-402NP-1220 560-000023

STELPRO ST252NP Non-Programmable Electronic Thermostat Owner’s Manual

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