Herschel MD2 Manuel utilisateur

MD2 Wired Thermostat

MD2 Wifi enabled

wired thermostat

The Herschel iQ MD2 is a 16 amp thermostat enabling

up to 3.6 kW of Herschel Heaters to be connected

through a single, easy to use control. MD2 is wired

directly to the mains circuit powering the heaters. Built-in

wifi enables control via the internet using the SmartLife

App.

MD2 is easy to operate and incorporates Herschel’s open

window technology to save energy. MD2 has a

keypad locking feature to prevent unauthorised

tampering with the settings and it can be programmed to

control zones up to 45°C, making it suitable for

commercial use and for specialist high temperature

applications such as hot yoga studios.

MD2 features Manual, Eco and 7 day programming

modes with 4 periods per day. The MD2 will operate your

Herschel heater(s) by turning them ON if the room

temperature is lower than the desired temperature and

will turn them OFF once the desired temperature is

reached or exceeded.

Please read these instructions carefully. MD2 operates

stand-alone, but can be paired to the SmartLife App if

internet operation is required.

Key features

• Mains operated

• Easy to use large LCD display

• Wall installation

• 7 x 1 day programmable, 4 periods per day

• Manual, Eco and 7 Day Programme modes

• Open window function

• 5°C - 45°C operation

• Keypad Lock

• Wireless 2.4GHz wifi

• CE, Rohs, RED approved

• 24 month warranty

The MD2 will require a single gang 46mm deep

pattress box for recessing into a wall, with access

to the mains circuit powering the heaters. Position

far enough away from the Herschel infrared heaters

to allow it to sense an average room temperature.

MD2 WIRED THERMOSTAT

Displays & Buttons

After installing and opening the SmartLife App, you must register an account using an email address and

password and accept the terms of use.

Scan the QR code below to download the Smartlife App from the App Store or Google Play. Alternatively,

search “Smart Life” on Google Play or the App Store & look for this icon.

Operation using the SmartLife App

The MD2 can be used stand-alone or with the SmartLife App. Since SmartLife makes management of your

MD2 so easy, we start with this first. But if you only want to use MD2 stand-alone, please go direct to the

“Stand-alone Operation”section below.

Downloading & Installing the SmartLife App

MD2 WIRED THERMOSTAT

To add your MD2 controller

Your mobile phone or tablet must be connected to the main 2.4GHz wifi signal issued by your router. Being

connected to a 5GHz signal or a network extender will cause the pairing process to fail.

•In the Smartlife App home page, add a device by pressing the + button in the top right corner.

•Select “Small Home Appliances”

•Select “Thermostats”on the list.

•Turn the MD2 on. Long press the power button to enter wifi connection mode.

•Tap the icon and the wifi status symbol will begin to flash.

•In the SmartLife app, confirm the prompt: “confirm the indicator is rapidly blinking”.

•Pairing is complete when the Thermostat appears in the Smartlife App and the Wifi Status symbol on

the MD2 is no longer blinking (shows a solid connection). Please note it may take up to a minute for the

Controller to stop flashing after it appears to have paired successfully in the Smartflife App.

•Tap the Thermostat in the app to start managing it.

Give your thermostat a meaningful name by clicking on the

pencil icon to the right of the title. This is especially important

if you are adding several thermostats as it is easy to lose track

of which controller is which without a meaningful name.

From the main screen of the Smartlife app, you can access

management features of the MD2:

- Switch (turns On or OFF the MD2 and the heater)

- Setpoint + and - buttons override current temperature

setpoint.

- Mode - Selection of Manual, Eco and Program Modes.

- Settings. These include the keypad (Child) lock & the weekly

program schedule. The app shows a countdown timer

available, but this is a generic provision of the app and is not

a function of the MD2. It only turns the MD2 on or off.

MD2 WIRED THERMOSTAT

Stand-alone Operation using MD2 keypad

Time and Day setting

•Turn MD2 on.

•Press for 3 seconds until the minutes display flashes. Press or to change the

value (each press = 1 minute).

•Press the button again to change the hour display. Press or to change the

value (each press = 1 hour). This is a 24 hour clock.

•Press the button again to change the day. Press or to select the day (1-7 for

Monday – Sunday so e.g. Friday is 5).

Mode selection & settings

The MD2 has 3 temperature modes: Manual (Constant); Eco and Program modes.

•Press to select mode.

The Eco mode is displayed as a symbol (top left of display). Eco Mode is a lower-than-normal

temperature setting that you can apply to save energy (e.g. on holiday) or as a frost-protection setting. This

setting can also be manually overridden.

Program mode is displayed as (the number denotes which period of the day is active). Any manual

override in program mode remains in effect only until the next period.

Manual Mode is displayed as a symbol (top left of display). Manual mode allows you to set whatever

temperature you require and this will be maintained until you change it or until another mode is selected.

To Set Eco Mode Temperature:

In Eco mode, press and to set the desired setpoint temperature. The temperature will

flash while it is saved and then return to a steady display of current room temperature.

To select a mode at any time, press the button and choose your required mode. The selection will

override the program schedule or current temperature setpoint until another mode is selected.

MD2 WIRED THERMOSTAT

Program Mode

The MD2 has a 7 x 1 day timer (Monday to Sunday) with 4 periods per day. For example, you could choose

Period 1 to be the temperature you wake-up to; Period 2 the daytime set-back temperature; Period 3 the late

afternoon / early evening temperature and Period 4 the nighttime setback temperature.

Unlike conventional heating, Herschel Far infrared directly heats the room (the “Thermal Mass”). For areas in

frequent use it is more economical to avoid temperatures dropping too low as the heater will need to be on for

a much longer period to restore temperatures. We recommend overnight setback temperatures of no lower

than 14°C and daytime temperatures of 16°C and above. Always try to program the schedule so a room is at

the temperature you want by the time you want. For example if you want it to be 21°C by 0700 am, consider

starting the program at 0600 a.m.

To set the 7 days program

•Press for 3 seconds to start the 7 x 1 day program setting. The First period of the First day is

selected.

•Press or to set the time of the first period of the day’s program.

•Press and to select the desired temperature setpoint.

•Press again to proceed to the next period.

•Repeat the above procedure for each period of each day.

The default settings you will receive with your MD2 are as follows:

To select Program Mode press until is displayed as the mode.

The schedule will then operate until another mode is selected.

All Days

Period 1

0630 21℃

Period 2

0800 18℃

Period 3

18:00 21℃

Period 4

22:30 16℃

MD2 WIRED THERMOSTAT

Temperature can always be overridden manually by pressing the and buttons. The

temperature will remain at this setting until the next programmed change occurs.

For example, using the above table, if it was 18:00 on a Monday, the thermostat would be set to 21°C. If you

wished to increase the temperature to 22°C, press to increase temperature to 22°C. The

thermostat would then retain this setting until 22:30 when the period 4 schedule would reduce the set

temperature to 16°C.

Keypad Lock

The Keypad Lock function can be selected On or Off in the parameter settings (see Parameter Settings below).

It is Off by default. Keypad lock is indicated by a Padlock at the top left of the display.

You can press for 5 seconds to unlock the keypad for a temporary adjustment. The keypad will

lock again once the backlight on the display switches off.

Window Open Detect

When temperatures are above 14°C if the system detects a drop of 2°C in a 15 minute period, the heating will

automatically be stopped (if it is on). The letters OP will display instead of the temperature display. The MD2

will return to the previous mode of operation after 60 minutes and the current room temperature will replace

the letters OP once again. Pressing any button during the 60 minute period will exit the Open Window function

and resume previous operations.

Window Open is set OFF by default when you receive the MD2. In Parameter Settings, you can enable the

Window Open Detect function; change the temperature drop detected; change the period within which the

drop is detected and change the period the heater remains off. See Parameter Settings.

MD2 WIRED THERMOSTAT

Parameter Settings

With the MD2 turned Off, press the location of the button for 5 seconds to enter the parameter

setting.

Each press of the button will select the next available parameter. Pressing and

will change the individual parameter. Press to save and exit.

Item

Description

Range

Default Value

Temp. calibration

-8°C - 8°C

0°C

Max Temp setpoint

5°C - 45°C

35°C

Min Temp setpoint

5°C - 45°C

5°C

Sensor select

0 Room only

1 External only

2 Room + External

0 (Room only)

Frost Protection Temp.

5°C - 15°C

5°C

Temp Calibration for external sensor

-8°C - 8°C

0°C

Temp detection by external sensor

Read Only

Overheat protection setting

20°C - 80°C

32°C

Dead Zone

0 - 3°C

0°C

Keypad Lock

1: Lock 0: Unlock

0 (Unlock)

Open Window Detect

1: ON 0: OFF

0 (OFF)

OW Detect Time

2 – 30 mins

15 mins

OW drop temp

2, 3 or 4°C

2°C

OW Stop Time

10 – 60 mins

30 mins

Factory Reset

0: No 1: Yes

(To reset, select 1, then

turn the unit off and on

again)

MD2 WIRED THERMOSTAT

Dimensions (mm)

The MD2 is 86mm x 86mm and the front display is 16.5mm thick. A single gang pattress box 46mm deep is

required for mounting, and mounting holes are 60mm apart.

Wiring

Wiring the MD2 should be carried out by a qualified

electrician. Ensure power supply to the MD2 is turned

OFF before wiring or unwiring the MD2. Maximum

load is 16A / 3.6kw at 230v.

The MD2 can be used to control several Herschel

heaters but the maximum wattage of 3.6kw (3,680w)

must not be exceeded. Do not use for any other

non-Herschel heating devices. INDOOR USE ONLY.

Wire mains Live to terminal 1, Neutral to terminal 2 and Earth to terminal 5. Wire the load to heater: Live to

terminal 3, Neutral to terminal 4 and earth to terminal 5.

MD2 WIRED THERMOSTAT

Installation

Technical Information:

Frequency Wifi 2.4 Ghz

Power Supply 110 - 230VAC, 50/60Hz

Set Point Range 5~45℃

Ambient 0~50℃

Relative Humidity 85%

Backlight White

Sensor NTC 10K

3950ohms at 25℃

Accuracy ± 0.5℃ (step control by +0.5℃)

Protection Class IP30

Housing ABS to UL94-5

fire retardant plastic

Certifications:

EN60950 Information Equipment Safety

EMC ETSI EN301 489

Radio ETSI EN300220

EMC EN61000-6-3: 2007 + A1: 2011 EMC EN61000-3-

2:2014

EMC EN61000-3-3: 2013

EMC EN61000-6-1:2007

ISO 9001: 2008 Compliant Manufacture EN60730-2-

9:2010 with EN60730-1:2011

(Safety of Automatic Electrical Controls)

RoHS 2011/65/EC

REACH 1907/2006/EC

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