Stelpro STCNP - 5mA Bedienungsanleitung

INSSTCNP5MA0612

“STCNP - 5mA”

Smart non programmable electronic

thermostat for heating cable

User’s Guide

www.stelpro.com

For further information or to consult this guide online,

please visit our Web site.

INSSTCNP5MA0612

WARNING WARNING

Before installing and operating this product,

the owner and/or installer must read, under-

stand and follow these instructions and keep

them handy for future reference. If these in-

structions are not followed, the warranty will

be considered null and void and the manufac-

turer deems no further responsibility for this

product. Moreover, the following instruc-

tions must be adhered to in order to avoid

personal injuries or property damages,

serious injuries and potentially fatal elec-

tric shocks. All electric connections must be

made by a qualiﬁed electrician, according to

the electrical 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 speciﬁed

load limits. Protect the heating system with

the appropriate circuit breaker or fuse. You

must regularly clean dirt accumulations on or

in the thermostat. Do NOT use ﬂuid to clean

thermostat air vents. Do NOT use where ex-

posed to water.

INSSTCNP5MA0612

1. Description

The STCNP non programmable electronic thermostat can be

used to control heating ﬂoors with electrical current − with a

resistive load − ranging from 0 A to 16 A at 120/208/240 VAC.

It has an easy user interface. It keeps the temperature of a

room ( mode) and a ﬂoor ( mode) at a requested set

point with a high degree of accuracy.

Floor Mode (factory setting)

This control method is ideal in areas where you want a hot

ﬂoor at any time and when the temperature of the ambient

air can be high without causing discomfort. For example, in

a bathroom.

Ambient Mode / (you only have to press down the

A/F button to switch from one mode to the other)

This control method is ideal when you want a stable ambi-

ent air temperature (without ﬂuctuation). Usually, this mode is

used in large and often occupied rooms where temperature

variations can be uncomfortable. For example, in a kitchen, a

living room or a bedroom.

Some factors cause variations in ambient air temperature.

They include large windows (heat losses or gains due to out-

side temperature) and other heat sources such as a central

heating system, a ﬁreplace, etc. In all these cases, the

mode will ensure a uniform temperature.

This Thermostat is not compatible with the following

installations:

•electrical current higher than 16 A with a resistive load

(3840 W @ 240 VAC, 3330 W @ 208 VAC and 1920 W @

120 VAC);

•inductiveload(presenceofacontactororrelay);and

•centralheatingsystem.

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Parts supplied:

•one(1)thermostat;

•two(2)mountingscrews;

•four(4)solderlessconnectorssuitableforcopperwires;

•one(1)oorsensor.

2. Installation

Thermostat selection and sensor location

The thermostat must be mounted on a connection box, 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;

•inalocationwithpoorairow(e.g.behindadoor),orwith

frequent air drafts (e.g. head of stairs).

To install the sensor, refer to the installation guide of your

heating ﬂoor.

Thermostat mounting and connection

1. Cut off power supply on lead wires at the elec-

trical panel in order to avoid any risk of electric

shock. Ensure that the thermostat will be installed

on a junction box located in an uninsulated wall.

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

clear of any obstructions.

3.Using a screwdriver, loosen the screw retaining the mount-

ing base and front part of the thermostat. Remove the front

INSSTCNP5MA0612

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. Route wires coming from the wall through the hole of the

mounting base and make the required connections us-

ing the “Four-wire installation” ﬁgure, and using the sup-

plied solderless connectors. A pair of wires (black) must

be connected to the power source (120-208-240 VAC)

and another pair (yellow) must be connected to the heat-

ing cable (refer to the drawings displayed on the back of

the thermostat). For connections with aluminum wires, you

must use CO/ALR connectors. Please note that thermo-

INSSTCNP5MA0612

stat wires do not have polarity, meaning that any wire can

be connected to the other. Then, connect the wires of the

ﬂoor temperature sensor at the indicated location behind

the thermostat.

Four-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).

INSSTCNP5MA0612

3. Operation

First Start-up

At the ﬁrst start-up, the thermostat is initially in the Day and

modes. The temperature is displayed in degrees Celsius

and the standard factory set point adjustment is 25°C. The

maximum ﬂoor temperature is limited to 28°C.

Maximum oor temperature limitation

At any time, the ﬂoor temperature (both in and modes)

is maintained at less than 28°C (82°F) in order to avoid over-

heating caused by an excessive heating request, which could

damage some materials or be detrimental for health.

TEST

Smart mode

Security mode

Night mode

Day mode

Red Indicator

(GFCI Test)

GFCI button

(Ambient mode)

(Floor mode)

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Temperature set points

The ﬁgures beside the icon indicate the temperature set

points (both in and modes). They can be displayed in

degrees Celsius or Fahrenheit (see “Display in degrees Cel-

sius/Fahrenheit”).

Out of any adjustment mode, press down the + button to in-

crease the set point, or the - button to decrease it. Set points

can only be adjusted by increments of 1 degree. To quickly

scroll through the set point values, press and hold down the

button. Both in Manual and Smart modes, the mode set

points can range between 3 and 35°C and can only be ad-

justed by increments of 1°C (from 37 to 95°F; by increments

of 1°F from the Fahrenheit mode). From mode, the set

points can range between 3 and 28°C (from 37 to 82°F).

In Day mode, you can turn off the thermostat by lowering the

set point below 3°C (37°F). 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 (Sun) and a Night mode

(Moon), both of them having their own independently adjust-

able and recorded set point. When switching from one mode

to the other, the system will automatically use the tempera-

ture set point corresponding to the Day/Night mode selected.

The and temperature are displayed by the ﬁgures un-

der the and icons, and the temperature set points are

displayed by the ﬁgures beside the icon, both in degrees

Celsius or Farenheit. The standard factory set point adjust-

ment is 25°C for the Day/ mode (21°C from the mode),

and 22°C for the Night/ mode (18°C from the mode).

In order to manually switch from one mode to the other,

simultaneously press down the + and - buttons and release

them immediately.

INSSTCNP5MA0612

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. You

can switch from the mode to the mode without affect-

ing the timer adjustment.

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. First, switch to the Night mode by simultaneously pressing

down the + and - buttons and releasing them immediately.

2. From the Night mode, simultaneously press down the +

and - buttons for more than 3 seconds until the icon

starts to blink, indicating that the adjustment of the Night

mode timer is effective. The ﬁgures that replace the

mode temperature indicate the current adjustment of the

timer and ‘‘hrs’’ replaces the mode temperature.

3. If needed, adjust the timer by pressing down the + button

to increase the value, or the - 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 but-

ton.

4. When the adjustment is completed, release the buttons

and wait for 5 seconds to exit the adjustment function. The

thermostat will then return to the Night mode.

N.B. The Night mode timer will be automatically reinitialized

to the latest recorded value when switching from the

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Day mode to the Night mode. It is not necessary to read-

just 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 tim-

er, 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 operat-

ing 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.

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