Stelpro STE402P Bedienungsanleitung

INSSTE402P0807

“STE402P”

Programmable electronic thermostat

User’s guide

www.stelpro.com

For further information or to consult this guide on line,

please visit our Web site.

INSSTE402P0807

1. Description

The electronic thermostat STE402P can be

used to control electric heating units such as

electric baseboards, convectors, or aerocon-

vectors. It keeps the temperature of the room

at the desired set point with a high degree of

accuracy. It has an easy user interface and can

manage up to four programming periods a day.

This product is designed for installations with

electrical current - with a resistive load - rang-

ing from 1.2 A to 16.7 A (150 to 2000 W at 120

VAC, 260 to 3475 at 208 VAC and 300 to 4000

W at 240 VAC).

This thermostat is not compatible with the

following installations:

• electrical current higher than 16.7 A with a

resistive load (4000 W @ 240 VAC, 3475 W @

208 VAC and 2000 W @ 120 VAC);

• electrical current lower than 1.2 A with a

resistive load (300 W @ 240 VAC, 260 W @

208 VAC and 150 W @ 120 VAC);

• inductive load (presence of a contactor or a

relay); and

• central heating system.

Parts supplied:

• one (1) thermostat;

• two (2) mounting screws; and

• two (2) solderless connectors suitable for

copper wires.

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 manu-

facturer deems no further responsibility

for this product. Moreover, the follow-

ing 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 electrical and building codes

effective in your region. Do NOT con-

nect this product to a supply source

other than 120 VAC, 208 VAC or 240 VAC,

and do not exceed the load limits speci-

ﬁed. Protect the heating system with

the appropriate circuit breaker or fuse.

You must regularly clean dirt accumu-

lations on the thermostat. Do NOT use

ﬂuid to clean thermostat air vents.

INSSTE402P0807

2. Installation

Selection of thermostat location

The thermostat must be mounted on a con-

nection 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 draft 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. Make the required connections using the fol-

lowing ﬁgures by selecting the proper type

of installation (2 wires or 4 wires), and us-

ing solderless connectors. For connections

with aluminium wires, you must use CO/ALR

connectors. Please note that this thermostat

does not have polarity, which means that any

wire can be connected to the other.

Two-wire installation

Four-wire installation

INSSTE402P0807

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). Important: you must

activate the Fan mode when the heating unit

is equipped with a fan; failure of the heating

unit could occur if not doing so.

4. Using a screwdriver, loosen the screw re-

taining the mounting base and front part of

the thermostat. Remove the front part of the

thermostat from the mounting base by tilting

it upward.

5. Align and secure the mounting base to the

connection box using the two screws sup-

plied.

INSSTE402P0807

3. Operation

INSSTE402P0807

Ambient temperature

The ﬁgures displayed above the word “AM-

BIENT” indicate the ambient temperature, ±

0.5 degree. Temperature can be displayed in

degrees Celsius or Fahrenheit (see “Display

in degrees Celsius/Fahrenheit”).

Temperature set point

The ﬁgures displayed above the word “SET”

indicate the temperature set point. It can be

displayed in degrees Celsius or Fahrenheit

(see “Display in degrees Celsius/Fahren-

heit”).

Out of any adjustment mode, press down the

+ button to increase the set point, or the -

button to decrease it. Set points can only

be adjusted by increments of 0.5 degree. To

quickly scroll through the set point values,

press and hold down the button. The mini-

mum set point is 3°C (37°F), and the maxi-

mum set point is 30°C (86°F).

Adjustment of the hour and the day of the

week

Adjustment procedure of the hour and the

day of the week:

1. press down the Day/Hr button, whether it

is from Man, Auto or Pre Prog mode;

at this moment, the SET icon and the day of

the week start to blink and you can adjust

the day of the week using the + or - but-

ton and conﬁrm your choice by pressing

down the Mode or the Day/Hr button. You

can also press down the day of the week but-

ton desired without using the + or - button and

conﬁrm your choice using the Mode or Day/Hr

button;

3. the two ﬁgures indicating the hour blink. You

must adjust them using the + or - button and

conﬁrm your choice by pressing down the

Mode or Day/Hr button;

4. the two ﬁgures indicating the minutes blink.

You must adjust them using the + or - button

and conﬁrm your choice by pressing down

the Mode or Day/Hr button. The adjustment

is then completed and the thermostat returns

to the previous mode.

At any time, you can exit the adjustment

mode of the day and the hour using one of

these 2 methods.

1- Press down the Exit button.

2- Press and hold down the Mode button.

3- Do not press down any button during 1 min-

ute.

The adjustment of the hour and the day of the

week can be done from any of the three modes.

In case of a power failure, the thermostat is

self-sufﬁcient for 2 hours. If the failure lasts

less than 2 hours, the thermostat saves the ad-

justment of the hour and the day of the week.

When the power is restored after an extensive

failure, the hour and the day of the week are

recovered, but you must update them.

INSSTE402P0807

Display in degrees Celsius/Fahrenheit

The thermostat can display the ambient tem-

perature and the set point in degrees Celsius

(standard factory setting) or Fahrenheit.

Adjustment procedure for degree Celsius/

Fahrenheit display

1. To switch from the degrees Celsius to the

degrees Fahrenheit, and conversely, simulta-

neously press down the + and - buttons for

more than 3 seconds until the SET icon starts

to blink.

2. Press down the + button to switch from the

degrees Celsius to the degrees Fahrenheit,

and conversely. The degree Celsius or Fahr-

enheit symbol will be displayed.

3. When the adjustment is completed, press

down the Exit button, hold down the Mode

button or do not press down any button dur-

ing 1 minute to exit the adjustment function.

N.B. This adjustment can be done from any of

the three principal modes. From the ad-

justment mode, the ﬁgures displayed at

the top of the screen are only useful for

the manufacturer. It is not the ambient

temperature.

Manual mode (Man)

From the Manual mode, you can manually adjust

the thermostat set point by pressing down the

+ or - button to increase the value, or to de-

crease it. To quickly scroll through the set point

values, press and hold down the button. The

set points can range between 3 and 30°C and

can only be adjusted by increments of 0.5°C

(from 37 to 86°F; by increments of 1°F from the

Fahrenheit mode). The thermostat will turn off if

the set point is lowered below 3°C, and the set

point value displayed will be OFF. The standard

factory set point adjustment is 21°C. From this

mode, the screen displays the temperature, the

set point, the heating power used, the hour and

the day of the week.

This mode is initially activated when the power

is turned on for the ﬁrst time. You must adjust

the hour (as describe in the section “Adjust-

ment of the hour and the day of the week”)

before switching to other modes by pressing

down the Mode or Pre Prog button.

INSSTE402P0807

Automatic mode (Auto)

To switch from the Manual mode to the Auto-

matic mode, and conversely, press down the

Mode button. The Man or Auto icon will be

displayed at the bottom of the screen as ap-

plicable.

From the Automatic mode, the thermostat

adjusts the set points according to the pro-

grammed periods. If no data were entered,

the thermostat acts the same way as from the

Manual mode and the standard factory set

point adjustment is 21°C. It is always possible

to manually adjust the set point using the + or

- button. The selected set point will be effective

until one period is programmed, which repre-

sents an hour and a day of the week. Note that

if the set point is lowered to OFF, the program-

ming will not be effective. It is possible to pro-

gram 4 periods a day, which means that the set

point can change automatically up to 4 times a

day. The period order is not important.

From this mode, the screen displays the tem-

perature, the set point, the heating power used,

the hour, the day of the week and the current

programmed period number (1 to 4; displayed

on the right-hand side of the hour).

Programming procedure of the Automatic

mode

1. To access the Programming mode, press

down the day of the week button that you

want to program (Mon to Sun). Once you

release the button, the selected day of the

week is displayed, the SET icon blinks and

the period number 1 blinks too.

2. Select the period number (1 to 4) that you

want to program using the + or - button. For

each period, the hour and the set point are

displayed. The hour displays --:-- and the set

point displays -- if there is no programming

for the period. You must conﬁrm the period

by pressing down the Mode button.

3. The two ﬁgures representing the hour blink to

indicate that you can adjust them (from 00 to

23) using the + or – button. You must conﬁrm

the adjustment by pressing down the Mode

button.

4. After conﬁrmation, the ﬁgures representing

the minutes (the last 2 ﬁgures) blink and you

can adjust and conﬁrm them in the same

manner as described above (point 3). It

should be noted that the minutes can only

be adjust by increments of 15 minutes.

5. The period set point blinks and you can ad-

just it using the + or - button.

6. After set point conﬁrmation, the program-

ming is completed. The period number in-

creased by 1 and blinks. For example, if the

previously programmed period was 1, pe-

riod 2 blinks. It is then possible to continue

the programming of this period by pressing

down the Mode button. You can also select

another period using the + or – button.

7. At the end of the period 4 programming, you

automatically exit the Programming mode.

INSSTE402P0807

At any time, you can exit the Programming

mode using one of the 3 following methods.

1- Press down the button of the day that you

are adjusting.

2- Press down the button of another day to pro-

gram it.

3- Press down the Exit button.

Moreover, if you do not press down any but-

ton for more than 1 minute, the thermostat will

exit the Programming mode. In all cases, the

programming is saved.

Anticipated start

This mode enables the room to reach the se-

lected temperature at the programmed hour.

In fact, the thermostat estimates the delay

required to reach the set point of the next pe-

riod at the programmed hour. This delay is ob-

tained by the observation of the temperature

variations in the room and the results obtained

during the preceding anticipated starts. That

way, the results should be increasingly precise

day after day. From this mode, the thermostat

displays at any time the set point (SET) of the

current period. The “anticipated start” icon will

blink when the anticipated start of the next pe-

riod will begin.

For example, if the requested temperature be-

tween 8h00am and 10h00pm is 22°C and be-

tween 10h00pm and 8h00am is 18°C, the set

point (SET) will indicate 18°C until 7h59am and

will switch to 22°C at 8h00am. Thus, you will

not see the progression carried out by the an-

ticipated start, but only the desired result.

To activate or deactivate the anticipated start,

the thermostat must be in the Auto or Pre Prog

mode. Then, you must press down the MODE

button for at least 5 seconds. The anticipated

start icon ( ) will appear or disappear to in-

dicate the activation or the deactivation of the

mode. This modiﬁcation will apply to the Auto

as well as the Pre Prog mode. If you modify

the temperature set point manually when these

modes are activated, the anticipated start of

the next period will be cancelled.

N.B. Please note that the anticipated start is

initially activated when you enter the Au-

tomatic or Preprogrammed mode. Thus,

you must deactivate it following the above

procedure if needed.

Copy of the programming

You can apply the programming of one day

of the week to other days by copying the pro-

gramming one by one or in block.

To copy the programming one by one, you must:

1. press down the source day button (day to be

copied);

2. hold down this button and press down the

destination days one by one. The screen dis-

plays the selected days as you select them.

If an error occurs when you are choosing a

day, press down the erroneous day again to

cancel the selection;

after all selections are completed, release the

source day button. Then, the selected days have

the same programming as the source day.

INSSTE402P0807

To copy the programming in block, you must:

1. press down the source day button and then

the button of the last day of the block to be

copied;

2. hold down these two buttons during 3 sec-

onds. After this time, the destination days are

displayed indicating that the copy in block is

activated;

3. release the buttons. The days of the block

are not displayed anymore and the current

day is displayed.

N.B. The block order is always increasing. For

example, if the source day is Thursday

and the destination day is Monday, the

copy will only include Friday, Saturday,

Sunday and Monday.

Erasing of the programming

You must proceed as follows to erase a pro-

gramming period.

1. Access the Programming mode as described

previously by pressing down the day of the

week button to modify. The period number

will blink and you must adjust it using the +

or - button in order to select the period to be

erased.

2. It is not necessary to press down the Mode

button to conﬁrm the period selection, but

you can do it.

3. Simultaneously press down the + and – but-

tons during 2 seconds to erase the period

programming. The hour displays --:-- and the

set point displays -- to indicate that the pro-

gramming is erased.

4. The erased period number blinks and you

can select another period to be erased or exit

the Programming mode following one of the

3 methods described in the previous page.

Preprogrammed mode

The Preprogrammed mode allows an auto-

matic programming of the thermostat. Up to

252 preprogrammings (A0 to Z1 and 0 to 9;

see appendix 1 attached) are deﬁned in factory

and easily accessible. This mode gives you the

possibility to quickly program the thermostat

using commonly used preprogrammings with-

out having to do it manually.

As from the Automatic mode, it is possible at

any time to manually adjust the set point. This

set point will be effective until the next set point

change anticipated by the preprogramming.

Note that if the set point is lowered to OFF, the

programming will not be effective.

From this mode, the screen displays the tem-

perature, the heating power used, the set point,

the hour, the day of the week and the letter and

the current number of the pre-programming (A0

to Z1 and 0 to 9; displayed on the right-hand

side of the hour; see appendix 1 attached).

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