Emmeti Merriott primo plus e-a User manual

Installation, operating

& instruction manual

Electric Radiator

PLEASE LEAVE THIS MANUAL WITH THE END USER

Primo Plus E-A

Class I - V - Hz

. Warnings & Safety Information 

. General Information 

. Warranty 

. Installation 

. Maintenance, Repair & Disposal 

. Waste Disposal According to The WEEE Directive (//EU) 

. Operation 

. Stand-alone Radiator 

. Radiator Connected to a Touch Central Programmer 

. Other Functions 

. Parameter Menu 

. How to Enter the Parameter Menu 

. How to Exit the Parameter Menu 

. Functions Available in the Parameter Menu 

.. Check and Set Time 

.. Checking the Time 

.. Seing the Time 

.. Check Programme Heating Times 

.. Deﬁne User Programme Heating Times 

.. Select Additional Features 

.. Select Programmes 

. Radiator Connected to the Touch Programmer 

. Technical Characteristics 

. Preset Programmes 

. Eco Directive Characteristics 

. Parameter Menu Template 

Contents

Primo Plus E-A 3

SAFETY INFORMATION

This appliance can be

used by children aged

from 8 years and above

and persons with reduced

physical, sensory or mental

capabilities or lack of

experience and knowledge,

if they have been given

supervision or instruction

concerning use of the

appliance in a safe way

and understand the

hazards involved.

Children shall not play with

the appliance. Cleaning and

user maintenance shall not

be made by children unless

they are older than 

and supervised.

Keep the appliance and

its cord out of reach of

children aged less than

 years.

Children of less than

 years should be kept

away from the unit unless

continuously supervised.

Children aged from  years

and less than  years shall

only switch on/oﬀ the

appliance provided that it

has been placed or installed

in its normal operating

position and they have

been given supervision or

instruction concerning use

of the appliance in a safe

way and understand the

hazards involved.

Children aged from  years

and less than 8 years shall

not plug in, regulate, clean

the appliance or perform

user maintenance.

Warnings & Safety Information

.

Primo Plus E-A4

CAUTION

Some parts of this

product can become

very hot and cause burns.

Particular aention has

to be given where

children and vulnerable

people are present.

In order to avoid

overheating, do

not cover the radiator.

“Do not cover” means

that the radiator must

not be used for drying

clothes, for example,

by placing them directly

on the radiator.

IMPORTANT SAFETY

INSTRUCTIONS!

Before starting work disconnect power supply!

All installation work and wiring work related to

the radiators, thermostats and programmers

must be carried out only when de-energised.

The appliance should be installed by and

commissioned by qualiﬁed professionals only.

Make sure to adhere to valid safety regulations.

Any repairs or maintenance within the warranty

period should be carried out only by approved

service engineers conﬁrmed by Merrio.

For the correct installation of radiators it is

essential that the ﬁxing of the radiator is carried

out in such a way that it is suitable for intended

use AND predictable misuse. A number of

elements need to be taken into consideration

including the ﬁxing method used to secure the

radiator to the wall, the type and condition of the

wall itself, and any additional potential forces or

weights, prior to ﬁnalising installation. IN ALL

CASES IT IS STRONGLY RECOMMENDED THAT

A SUITABLY QUALIFIED PROFESSIONAL

INSTALLER OR SIMILAR TRADESPERSON

CARRIES OUT THE INSTALLATION.

PLEASE NOTE: The ﬁxing materials provided are only

intended for installation on walls made of solid wood,

bricks, concrete or on timber-frame stud walls where the

ﬁxing is into the timber. All walls being considered should

have no more than a maximum of mm wall ﬁnishing.

For walls made of other materials, for example hollow

bricks, please consult your installer and/or specialist

supplier. ONCE AGAIN, IF YOU ARE UNSURE, IT IS

STRONGLY RECOMMENDED THAT A SUITABLY

QUALIFIED PROFESSIONAL INSTALLER OR SIMILAR

TRADESPERSON CARRIES OUT THE INSTALLATION.

The radiator is equipped with an overheat

protection that cannot be reset (melt fuse). This

overheat protection disconnects the current if the

radiator becomes too hot (e.g. when covered).

If the supply cord is damaged, it must be replaced

by the manufacturer, his service agent or similar

qualiﬁed persons in order to avoid a hazard.

The radiator is ﬁlled with an exact amount of

environmental friendly vegetable oil. Any repairs

that require the radiator to be opened shall

therefore only be carried out by the manufacturer

or his approved agent. Please contact Merrio in

case of leakage.

Warnings & Safety Information (cont...)

.

Primo Plus E-A 5

>This appliance is a sealed electric radiator

designed for ﬁxed wall-mounted installation.

>This appliance conforms to the standards

EN  and EN .

>This appliance is class I and splash resistant

(IP).

>This appliance complies with the European

Directive //EU (CE Marking on all

appliances).

>This unit is supplied complete with a connection

cable and wall brackets.

The product is covered by a  year warranty

from date of purchase.

. Room Temperature Sensor

Cable Hook Assembly

. Power On/Oﬀ Switch

. Thermostat Control

. Power Cable

 YEAR

WARRANTY

General Information

.

Warranty

.

Primo Plus E-A6

Positioning

> The radiator must be positioned horizontally,

the right way up on the wall in order for it to

function correctly. Never switch the radiator

on in any other position as this will damage the

electrical element.

>The radiator must be positioned according

to the applicable standards and the minimum

distances as speciﬁed in ﬁgure  should be

carefully observed.

>The radiator must not be located underneath

an electric socket.

> This product is splash resistant with an IP

rating. This must be considered when installing

in a location containing a bath or shower, as

deﬁned by BS .

> The radiator may be positioned in zone 

(ﬁgure ) of the bathroom, in so far as no

operating controls (buon, switch, etc.)

are in reach of persons in the bath or under

the shower.

Fixing

> Mark out the distance between the brackets

and the positions for the screw holes as shown

in ﬁgure  and the dimension tables at the top

of page , and ensure the safety clips are used

(see ﬁgure ).

FLOOR

Figure . Figure .

Figure .

Step  Step 

Safety Clip-on Brackets

Min.

200mm

Min.

100mm

Min. 100mm

Min.

200mm

Min.

100mm

Min. 100mm

Zone  Zone 

Zone 

Zone 

OUTSIDEZONES

m

.m

.m

Figure .

Installation

.

Primo Plus E-A 7

Stand-alone Connection

> The electrical installation must comply with

local or national regulations.

>The radiator must be connected to the

electrical supply, using a switched fused spur

with mm separation on all poles.

>If the radiator is installed in a bathroom or

shower room, it must be protected with a

residual current device (RCD) with a rated

residual current not exceeding mA.

>The radiator should be connected by a suitable

and qualiﬁed electrician. Please refer to the

wiring diagram (ﬁgure ) for the connection of

the radiator.

Primo Plus E-A Double Panel (refer to figure 2)

Height

(mm)  

C 

D 

Length

(mm)          

A         

B         

Switched

Fused Spur

Electric

Radiator

Cable

230V 50Hz SUPPLY

BR G/Y

G/Y

LOAD

NEUTRAL LIVE EARTH

LOAD

Figure .

Wire Colours

BR = Brown

BK = Black (Neutral)

BL = Blue

G/Y = Green/Yellow

>Use only a damp cloth for cleaning and wiping

of the radiator which should be switched oﬀ at

this time.

>When scrapping the radiator, follow the

regulations concerning the disposal of oil.

Installation (cont...)

.

Maintenance, Repair & Disposal

.

Primo Plus E-A8

Waste disposal according to the

WEEE Directive (//EU).

The symbol on the product label

indicates that the product may not

be handled as domestic waste, but must be sorted

separately. When it reaches the end of its useful

life, it shall be returned to a collection facility for

electrical and electronic products. By returning

the product, you will help to prevent possible

negative eﬀects on the environment and health to

which the product can contribute if it is disposed

of as ordinary domestic waste. For information

about recycling and collection facilities, you

should contact your local authority/municipality

or refuse collection service or the business from

which you purchased the product. Applicable to

countries where this Directive has been adopted.

Figure 6.

> The On/Oﬀ buon is located at the boom of

the control side of the radiator (F, ﬁgure ).

The radiator should only be switched “on” when

it is correctly installed and secured to the wall

brackets. When the radiator is switched on,

LED (C) will ﬂash orange, and then LED (A)

will turn green or red depending upon the

heating demand.

Waste Disposal According to The WEEE Directive

(//EU)

.

Operation

.

Primo Plus E-A 9

. Stand-alone Radiator

>Select one of the following operating modes

using dial D (ﬁgure ):

Comfort Mode

Select this mode for periods of normal occupancy.

Reduced Mode

Select this mode for night-time or when the house

is unoccupied for several hours. This mode will

lower the temperature of the room by .°C from

the “Comfort mode” set temperature.

Frost Protection Mode

This mode is to be used when the house is

unoccupied for extended periods.The radiator

will maintain the room temperature at °C.

. Radiator Connected to a

Touch Central Programmer

>When connected to a central programmer

(refer to page ), select the automatic

operation mode by turning dial “D” to the

clock symbol.

Automatic Mode

>This mode is intended to be used in

combination with an external programmer,

or the built in programmer.

Note: Preset program P must be selected.

Example: If the comfort temperature is set to

°C and dial “D” is set to , then the radiator will

give a room temperature of °C in this case.

. Other Functions

>The switch (E, ﬁgure 6) at the boom

of the control panel can be used to limit the

output (surface temperature) of the heating

element in the front panel.

Reduced Mode

>Turn dial “D” to the moon

symbol.

Frost Protection Mode

>Turn dial “D” to the

snow ﬂake symbol.

Automatic Mode

>Select the desired room

temperature during periods

of normal occupancy between

 and °C using dial “B”.

>Rotate dial “D” within the

area covered by the

symbol. At night or during

periods of inoccupancy,

the radiator will reduce

its temperature output.

The value on this scale

indicates the desired

temperature reduction.

Comfort Mode

>Turn dial “D” to the sun symbol.

>Select the required room

temperature between  and

°C using dial “B”.

Operation (cont...)

.

Primo Plus E-A10

~°C MAX~°C MAX~°C MAX

Note: When considering the permanent use of the

radiator at °C or °C maximum, the following

correction factor should be applied for the output.

E Switch Surface Temp. Double Panel

~ °C max ~ .

~ °C max ~ .

~ °C max 

E.g. A , Wa double panel with the E switch

on the °C position will deliver max.  Was.

These values should be considered when

selecting the number and type of panels to

cover the calculated heat losses.

>Two LED indicators (A and C, ﬁgure )

indicate the working mode of the radiator.

Led A

Green Radiator switched on

Red Radiator heating

Led C (only when external programmer connected)

Oﬀ Comfort mode

Green blinking

(cycle of -blinks then

pause, -blinks, repeated).

Reduced mode

Troubleshooting

Led A

Red

Blinking Sensor problem

Contact the

manufacturer or

service agent

Orange/Green

Blinking

Open window

detected -

Radiator not

heating

See section ..

Select additional

features

Orange/Red

Blinking

Open window

detected -

Radiator heating

Led A and C

Led A Blinking

Orange

Led C Blinking

Orange

Key lock active De-activate

key lock

Led A Oﬀ

Led C Blinking

Green/Red

Change to “Power

break (when

dial “D” is set to

Automatic mode)”

See section ..

Seing the time

Key Lock Function

Use the Key Lock function to prevent any

changes to your seings (in a child’s room,

public area… etc.)

>To activate the Key Lock function, slide the

switch (E, ﬁgure ), to the le , then to the

right , then back to the le . Repeat this

sequence  times.



>LED A & C will both ﬂash orange  times.

>Repeat the same procedure to unlock

the keypad.

Note: When unlocking the Key Lock function,

LED A & C will ﬂash orange during the unlock

sequence. When successfully unlocked, LED

A & C will ﬂash green  times.

Note: If any alterations are made to dials B or D,

or to switch E, when the Key Lock is active, LED A

& C will ﬂash orange  times to indicate the Key

Lock is active.

This function is available in all operating modes.

To check the actual seings, that were stored

before the key lock was activated, slowly move

dials B or D, or switch E.

When dial B is moved to the stored seing, LED

(A) will ﬂash orange/green.

When dial D is moved to the stored seing, LED

When switch E is moved to the stored seing,

LED (C) will ﬂash orange/red.

Operation (cont...)

.

Primo Plus E-A 11

. How to Enter the

Parameter Menu

The thermostat has a parameter menu. In order

to enter this menu, follow the below steps:-

>Rotate dial B to , turn dial D to , and slide

switch E to the le .

>Rotate dial B to  then back to .

>Rotate dial D to Sthen back to

>Slide switch E to then back to

Note: LED A & C will both ﬂash green while in the

top level of the parameter menu.

Note: When in the parameter menu, switch E

should always be in the le position when

not in use.

Note: The position of dial B has no inﬂuence in

the top level of the parameter menu.

. How to Exit the

Parameter Menu

To exit from the top level of the parameter menu

and return to normal operation, either do not

manipulate any of the controls for  seconds,

or follow the below steps:-

>Rotate dial D to S, then slide switch E to

then back to to conﬁrm.

>LED A & C will ﬂash red  times.

Note: Dial B & D, and slide switch E will need to be

set to the normal operation positions.

Parameter Menu

.

Primo Plus E-A12

. Functions Available in the

Parameter Menu

When in the top level of the parameter menu,

the below functions can be accessed:-

Symbol Parameter Function

No function

Check and set time

Check programme heating times

-, Deﬁne user programme heating times

- Select additional features

- Select programmes

- No function

SExit parameter menu

Note: Aer entering the above functions, if you

wish to return to the top level of the parameter

menu, either do not manipulate any of the

controls for  seconds, or follow the

below steps:-

>Rotate dial D to S.

>LED A & C will both ﬂash orange.

>Slide switch E to then back to to conﬁrm.

>LED A & C will ﬂash green.

.. Check and Set Time

To enter into this function, follow the

below steps:-

>Rotate dial D to the then slide switch E to

then back to to conﬁrm.

>LED A & C will stop ﬂashing green and change

to solid red or solid green.

Note: The time template, located in the rear of

the user manual, will be needed to set the day

and time.

>Cut out the time template from the manual,

and place it over the control.

.. Checking the Time

>Rotate dial B until LED A changes from solid

red to solid green, and rotate dial D until LED C

changes from solid red to solid green.

>In the above example, the time values are Day 

and the time is approximately :.

Parameter Menu (cont...)

.

Primo Plus E-A 13

.. Seing the Time

>To set the time, rotate dial B to the current time

and rotate dial D to the current day of the week.

>Slide switch E to then back to to save the

time seing.

>LED A & C will both change to solid green.

Note: If power is lost, from a power cut or the

product is switched oﬀ, even just for a few

seconds, the time and day seing will be lost.

.. Check Programme

Heating Times

To enter into this function, follow the

below steps:-

>Rotate dial D to the then slide switch E to

then back to to conﬁrm.

>LED A will stop ﬂashing green and change

to solid red or solid green.

>LED C will be oﬀ.

Note: The time template, located in the rear of

the user manual, will be needed to set the day

and time.

>Rotate dial D to the day of the week that is to

be checked.

>Rotate dial B from hrs to hrs, taking note

of at what time LED A changes between red

and green.

Red = Reduced mode

Green = Comfort mode

.. Deﬁne User Programme

Heating Times

Note: Once saved, the user deﬁned programmes

are not lost in the event of a power cut. However,

the time will reset to : and Day  when the

power returns, if not set, so the product may not

heat at the expected times.

ATTENTION: If a user deﬁned programme has

already been created and saved, it will be lost as

soon as the “deﬁne user programme” function

is entered.

To enter into this function, follow the below steps:-

>Rotate dial D to the , then slide switch E to

then back to to conﬁrm.

Parameter Menu (cont...)

.

Primo Plus E-A14

>LED A will be oﬀ.

>LED C will stop ﬂashing green and change to

ﬂashing orange/green, indicating that dial D

must now be set to Day .

Note: The time template, located in the rear of

the user manual, will be needed to set the day

and time.

>Rotate dial D to .

>LED A will start ﬂashing red.

>LED C will be oﬀ.

>Rotate dial B to the start time of the ﬁrst

comfort period, then slide switch E to then

back to to conﬁrm.

>LED A will change from ﬂashing red to

ﬂashing green.

>Rotate dial B to the end time of the ﬁrst

comfort period, then slide switch E to then

back to to conﬁrm.

>LED A will change from ﬂashing green to

ﬂashing red.

>Rotate dial B to the start time of the second

comfort period, then slide switch E to then

back to to conﬁrm.

>LED A will change from ﬂashing red to

ﬂashing green.

>Rotate dial B to the end time of the second

comfort period, then slide switch E to then

back to to conﬁrm.

>LED A will change from ﬂashing green to

ﬂashing red.

>If more than two Comfort periods are required,

repeat the previous steps for the start and end

time of each comfort period.

>If all comfort periods have been deﬁned for

Day , rotate dial B to hour , then slide switch

E to then back to to conﬁrm.

>LED A will be oﬀ.

Parameter Menu (cont...)

.

Primo Plus E-A 15

>LED C will start ﬂashing orange/green, indicating

that dial D must now be set to Day .

>Rotate dial D to Day .

>Repeat the previous steps for seing all

desired comfort periods for Day  to Day .

Note: If LED A was ﬂashing green at the end of the

previous day (comfort), LED A will ﬂash green at

the start of the following day, signifying that the

comfort period will continue into the following day.

Rotate dial B to the end of this comfort period,

and switch E to then back to to conﬁrm. LED A

will change from ﬂashing green to ﬂashing red.

>When dial D is set to hour  on Day ,

signifying all comfort periods have been

deﬁned, slide switch E to then back to

to conﬁrm.

>The user deﬁned programme will be stored

and the thermostat will automatically exit,

and return to the parameter menu.

>LED A & C will ﬂash green.

.. Select Additional Features

The thermostat has Adaptive Start and Open

Window Detection functions.

Adaptive Start

Disabled - Heating up to reach the Comfort set

temperature will start at the programmed time.

Enabled - Heating up will start at the predicted

optimal time to reach the Comfort set

temperature at the programmed time.

Note: This feature will only function when the

radiator follows the built in programmer.

Open Window Detection

This function will switch the radiator from any

active mode to “Frost Protection” mode when

an open window is detected (room temperature

drops within a certain time). LED A will ﬂash

orange/red when heating, or ﬂash orange/green

when not heating.

To return to previous mode, turn Dial B or D and

then turn it back to the original position. If no

manual intervention has been detected within

 minutes, the radiator will return automatically

to the previous operation mode.

To enter into this menu and select these

additional features, follow the below steps:-

>Rotate dial D to -5 then slide switch E to then

back to .

>LED A will stop ﬂashing green and change to

solid orange.

Orange = feature not selected.

Green = feature currently selected.

>LED C will be oﬀ.

Note: Adaptive Start and Open Window Detection

are both set to enabled by default.

Symbol Adaptive Start Window Open

Detection

Disabled Disabled

Disabled Enabled

Enabled Disabled

, Enabled Enabled

 No function

 No function

 No function

SExit (return to top level of

parameter menu)

Parameter Menu (cont...)

.

Primo Plus E-A16

>Rotate dial D to or -, and then slide

switch E to then back to to conﬁrm.

>LED A will change to solid green to indicate the

currently selected option.

.. Select Programmes

The thermostat has 6 preset heating

programmes, P  P (page ) and  user deﬁned

heating programme, U.To enter into this menu

and select one of these heating programmes,

follow the below steps:-

>Rotate dial D to  then slide switch E to then

back to to conﬁrm.

>LED A will stop ﬂashing green and change

to solid orange or solid green.

Orange = programme not selected.

Green = programme currently selected.

>LED C will be oﬀ.

Symbol Programme Number

P

P

P

-, P

- P

- P

- U

SExit (return to top level of

parameter menu)

>Rotate dial D to the symbol relating to the

desired programme, and then slide switch E to

then back to to conﬁrm.

>LED A will change to solid green to indicate that

this programme is now selected.

Parameter Menu (cont...)

.

Primo Plus E-A 17

LOAD L

LOAD

LOAD L

LOAD

230V 50Hz SUPPLY

NEUTRAL

LIVE EARTH

G/Y

BRBL

BL BR

G/Y

Switched

Fused Spur

Electric Radiator Cable

Terminal

Block

Mark switched live

pilot wire with brown

insulation tape

Mark switched live

pilot wire with brown

insulation tape EARTH

Switched

Fused Spur

PILOT WIRE FROM PROGRAMMER

(switched live)

G/Y

Figure 7.

Wire Colours

BR = Brown

BK = Black

BL = Blue

G/Y = Green/Yellow

Radiator Connected to the Touch Programmer

.

When connected to the Touch(ﬁgure ), select

the automatic operation mode.

>A suitable means of local isolation of the

radiator from both the electrical supply and

the pilot wire signal must be provided.

>The switched fused spurs must be clearly

marked to indicate that two sources of

electrical supply may be present.

Automatic Mode

>Select the desired

room temperature

during periods of

normal occupancy

between  and °C

using dial “B”.

>Rotate dial “D” within the area covered

by the symbol. The value on this scale

indicates the desired temperature reduction

during the night or during shorter periods

of absence.

>When the house is unoccupied for longer

periods (e.g. holiday) you can override the

clock programme by rotating dial “D” around

to “Reduced” or “Frost protection” mode.

>The section highlighted with symbol should

only be used when connected to the Touch.

If the radiator is set in this position when not

connected, then it will only work in comfort

mode .

>The Touch has an IP rating.

Primo Plus E-A18

BRBLG/Y

Zone 2 Zone 1

G/YBLBR

Zone 4 Zone 3

Live

Neutral

G/Y

BLBR

G/Y

BLBR

G/Y

BLBR

CH4 CH3 CH2 CH1

Touch4

BRBLG/Y

Other products in

Zone 1

Other products in

Zone 2

Other products in

Zone 3

Other products in

Zone 4

Figure 8.

When installing in a bathroom or wet room, please refer to the installation positions in Section 4.0 Installation on page 6.

Wire Colours

BR = Brown

BK = Black

BL = Blue

G/Y = Green/Yellow

A suitable means of local isolation of the radiator from both the electrical supply and the pilot wire signal must be provided.

The switched fused spurs must be clearly marked to indicate that two sources of electrical supply may be present. The outputs

from the programmer are switched Live.

Radiator Connected to the Touch Programmer (cont...)

.

Primo Plus E-A 19

Environment:

- Operating temperature

- Transportation and storage temperature

-°C to +°C

-°C to +°C

Ranges for temperature seings:

- Comfort mode

- Reduced mode

- Frost protection mode

+°C to +°C

Temp reduction between .°C and °C

+°C

Electrical Insulation Class I

Electrical Protection IP

Impact Protection IK

Power Supply  VAC -  Hz

Directives & Standards:

The product has been designed to comply

with the following Directives and Standards.

>EN 

>EN 

>EN 

>EN 

>EN 

>EN 

>EN 

>EN 

>EN 

>LV Directive //EU

>EMC Directive //EU

>RoHS Directive //EU

>ECO Directive //EC

Technical Characteristics

.

Primo Plus E-A20

Day

Day 1 = Monday

Preset Programmes

.

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