STELPRO ST402PFF Programmable Electronic Thermostat Owner’s Manual

1

INITIAL SETTINGS  

RÉGLAGES INITIAUX  

OWNER’S  

MANUAL  

CONNECT THE POWER  

SUPPLY WIRES  

2

AND PROGRAMMING  

To begin with, follow the on-screen instructions to adjust your  

thermostat’s settings. Press  

to confirm.  

WARNING: Incorrectly connected electrical wires could  

result in a fire hazard.  

or  

to change your selection and  

PROGRAMMABLE ELECTRONIC THERMOSTAT  

FOR BASEBOARDS, CONVECTORS ANS FAN HEATERS  

• Language: FRA / ENG (Français / English)  

• Temperature format: °C / °F (Celsius / Fahrenheit)  

1. Complete the thermostat’s electrical connection according to  

the diagram below. Tighten the wires securely in the supplied  

wire connectors.  

ST402PFF  

• Load type selection: CONV / FAN (Convection / Fan Heater).  

FAN HEATER mode is enabled by default.  

2. Push the wires and connectors into the electrical box.  

• Lobby mode: STD / LBY (Standard room / Lobby).  

NOTE: If the electrical wires are aluminum, use CO/ALR connec-  

tors instead (not supplied).  

In LOBBY mode (LBY), the thermostat automatically provides  

100% heating for five minutes as soon as a sudden drop in  

temperature is detected. This mode can be useful for heaters  

located near an entrance. When this mode is activated, the  

icon flashes. LOBBY mode is available only if the heating mode  

selected is FAN HEATER.  

FOR BASEBOARDS, CONVECTORS AND FAN HEATERS  

• Operation mode: PROG / MANUAL (Programmable / Manual).  

If you selected MANUAL mode, your thermostat is now ready to  

use! If you selected PROGRAMMABLE mode, configure the  

following settings:  

– Date and time  

E

– Automatic daylight savings time switchover: DST Y / DST N  

(Daylight savings time Yes / Daylight savings time No)  

1-844-STELPRO  

WWW.STELPRO.COM  

BLACK  

– Program setpoint temperatures: (Wake, Leave, Return, Sleep)  

RED  

– Monday to Friday program hours: [Mo-Fr] (Wake, Leave,  

Return, Sleep)  

L1=Black  

LOAD  

POWER  

L2/N=Red  

LD=Yellow  

YELLOW  

The diagram shows a 240 V power supply.  

– Saturday and Sunday program hours: [Sa-Su] (Wake, Sleep)  

The following table shows the default program values:  

FOR BASEBOARDS AND CONVECTORS ONLY  

WEEK DAYS  

IMPORTANT INSTRUCTIONS  

RETURN  

WAKE  

LEAVE  

SLEEP  

6:00 AM  

21°C / 70°F  

8:00 AM  

16°C / 61°F  

4:00 PM  

21°C / 70°F  

10:00 PM  

17°C / 63°F  

THE THERMOSTAT MUST BE INSTALLED BY A CERTIFIED  

ELECTRICIAN.  

WEEKEND DAYS  

Connect the thermostat to a 120 to 240 VAC power source ONLY and  

comply with load limits.  

WAKE  

SLEEP  

7:00 AM  

21°C / 70°F  

11:00 PM  

17°C / 63°F  

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.  

BLACK  

RED  

L1=Black  

LOAD  

POWER  

YELLOW  

L2/N=Red  

FEATURES  

LD=Yellow  

The diagram shows a 240 V power supply.  

SAVE THESE INSTRUCTIONS  

FOR BASEBOARDS AND CONVECTORS ONLY  

KEY FEATURES  

1. Press  

or once to lower or raise the setpoint temperature by  

0.5°C / 1°F. If you are in PROGRAMMABLE mode, the set-  

point change will be considered as a temporary override to the  

programming. The thermostat will return to PROGRAMMABLE  

mode when the next program begins. To cancel the override and  

TECHNICAL SPECIFICATIONS  

VOLTAGE AND LOAD  

return to PROGRAMMABLE mode, press  

2. Press once to switch from MANUAL to PROGRAMMABLE  

mode and vice versa.  

.

PRODUCT CODE  

SUPPLY VOLTAGE  

LOAD AT 120 V  

LOAD AT 240 V  

VOLTS  

WATTS  

WATTS  

ST402PFF  

120-240  

150-2000  

300-4000  

3. If Programmable mode is selected, press  

next program.  

twice to go to the  

BLACK  

Load control type  

Frequency  

Resistive  

60 Hz  

RED  

LOAD  

4. Press  

Then, press  

30, 40, 40, 50 or 60 minutes). The thermostat will then heat at  

and  

simultaneously to activate BOOST mode  

.

L1=Black  

Storage temperature  

-40°C to 50°C (-40°F to 122°F)  

or to select BOOST mode duration (10, 20,  

L2/N=Red  

YELLOW  

-20°C to 50°C (-4°F to 122°F).  

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

LD=Yellow  

The diagram shows a 240 V power supply.  

Operating temperature  

100% for the time specified. When BOOST mode is on, the time  

remaining is displayed on the screen. To cancel the BOOST  

Humidity  

5% to 98% without condensation  

Action  

Type 1.Y  

mode, press  

.

Pollution degree  

Software  

2

Class A  

Rated impulse voltage  

Category II overvoltage (1500 V)  

ADVANCED MENU ACCESS AND USE  

ATTACH THE THERMOSTAT  

3

Independently mounted control for surface mounting  

Thermistor used as a sensor, carries no load current  

1. Press and hold  

advanced menus.  

for 3 seconds to access the thermostat’s  

Overload protection device external to the control: circuit breaker (refer to local electrical code)  

2. Press  

or to change your selection.  

to confirm your selection and proceed to the next  

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 thermo-  

stat and mounting plate.  

3. Press  

menu.  

BEFORE YOU GET STARTED  

4. Press and hold  

for 3 seconds to exit the advanced menus.  

ADVANCED MENU LIST  

• The box contains one (1) thermostat with mounting plate, two (2)  

mounting screws, three (3) twist-on wire connectors and one (1)  

owner’s manual.  

• Language: FRA / ENG (Français / English)  

2. Rotate the thermostat upwards  

and attach it on the top hook of  

the mounting plate.  

• Temperature format: °C / °F (Celsius / Fahrenheit)  

• Load type selection: CONV / FAN (Convection / Fan Heater).  

FAN HEATER mode is enabled by default.  

• 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.  

• Lobby mode: STD / LBY (Standard room / Lobby).  

A

LOBBY mode is available only if the heating mode selected is  

FAN HEATER.  

3. Tighten the screw at the top of the  

thermostat [B] to hold it in place  

securely.  

B

• Operation mode: PROG / MANUAL (Programmable / Manual)  

When PROGRAMMABLE mode is selected, you can change  

the following settings:  

INSTALLATION  

4. Restore the power at the circuit  

breaker.  

– Date and time  

– Automatic daylight savings time switchover: DST Y / DST N  

(Daylight savings time Yes / Daylight savings time No)  

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.  

ATTACH THE MOUNTING PLATE  

1

– Program setpoint temperatures: (Wake, Leave, Return, Sleep)  

– Monday to Friday program hours: [Mo-Fr] (Wake, Leave,  

Return, Sleep)  

A

WARNING: Turn off the  

power supply.  

– Saturday and Sunday program hours [Sa-Su] (Wake, Sleep)  

• Keypad lock: LOCK / UNLOCK (Lock keypad / Unlock keypad)  

• Reset thermostat to default values: RST N / RST Y (No / Yes)  

1. Loosen the screw [A] at the  

top of the thermostat without  

removing it.  

INTERFACE  

USING THE TECHNICAL MENUS:  

2. Separate the mounting plate  

from the thermostat. Pull the  

top of the plate and rotate.  

1. Press  

for 10 seconds to access the thermostat’s technical  

This thermostat is programmable. PROGRAMMABLE mode allows  

you to define the setpoint temperature according to time of day and  

day of the week. (See the INITIAL SETTINGS AND PROGRAMMING  

section.) You can also use this thermostat in MANUAL mode, i.e. the  

setpoint temperature will be constant.  

menus (the advanced menu will appear after 3 seconds but  

continue to hold for another 7 seconds).  

MOUNTING  

PLATE  

2. Use  

ou to change your selection.  

3. Press  

menu.  

to confirm your selection and continue to the next  

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].  

Touch the keypad once to activate the backlight, then you can  

make changes  

4. Press  

for 3 seconds to exit the thermostat’s technical menus.  

TECHNICAL MENU LIST  

4. 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.  

Heating output  

• t1: Maximum room temperature setpoint limit  

(5°C to 30°C / 41°F to 86°F). The default setting is 30°C.  

Keypad locked  

Fan mode  

(LOBBY mode is active  

when flashing)  

• t2: Minimum room temperature setpoint limit  

(5°C to 30°C / 41°F to 86°F). The default setting is 5°C.  

Période de la  

semaine (Lu-Ve:  

du lundi au vendredi,  

Sa-Di: le samedi  

et le dimanche)  

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.  

B

Ambient  

temperature/  

contextual  

information  

Menu indicator  

Current program  

(Wake, Leave,  

Return, Sleep)  

D

• t3: Year of production  

• t4: Month of production  

• t5: Identification number  

• t6: Software version  

C

JUNCTION BOX  

Keypad  

• t7: Thermostat control code  

D

MOUNTING PLATE  

Limited three-year warranty. See details on www.stelpro.com.  

STELPRO DESIGN INC. Saint-Bruno-de-Montarville, Québec, Canada, J3V 6L7  

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General	Details
Name	STELPRO ST402PFF Programmable Electronic Thermostat Owner’s Manual
Make	StelPro
Language	English
Filetype	PDF (Download)
File size	0.41 MB

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• ALL THERMOSTAT INSTRUCTIONS & USER MANUALS
• StelPro

STELPRO ST402PFF Programmable Electronic Thermostat Owner’s Manual Overview

Summary of Contents

• Page 1: initial settings connect the power supply wires to begin with, follow the on-screen instructions to adjust your thermostat’s settings. incorrectly connected electrical wires could result in a fire hazard. 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. turn off the power supply before installation and maintenance. the diagram shows a 240 V power supply. this thermostat is programmable. programming mode allows you to define the setpoint temperature according to time of day and day of the week.