Manual Drayton MiStat N Thermostat

Manual

What is a room thermostat?

... an explanation for householders

A room thermostat simply switches the heating

system on and off as necessary. It works by sensing

the air temperature, switching on the heating when

the air temperature falls below the thermostat setting,

and switching it off once this set temperature has

been reached.

Turning a room thermostat to a higher setting will not

make the room heat up any faster. How quickly the

room heats up depends on the design of the heating

system, for example, the size of boiler and radiators.

Neither does the setting affect how quickly the room

cools down. Turning a room thermostat to a lower

setting will result in the room being controlled at a

lower temperature, and saves energy.

The heating system will not work if a time switch or

programmer has switched it off.

The way to set and use your room thermostat is to

find the lowest temperature setting that you are

comfortable with, and then leave it alone to do its job.

The best way to do this is to set the room thermostat

to a low temperature – say 18ºC – and then turn it up

by one degree each day until you are comfortable

with the temperature. You won’t have to adjust the

thermostat further. Any adjustment above this setting

will waste energy and cost you more money.

If your heating system is a boiler with radiators, there

will usually be only one room thermostat to control the

whole house. But you can have different temperatures

in individual rooms by installing thermostatic radiator

valves (TRVs) on individual radiators. If you don’t

have TRVs, you should choose a temperature that is

reasonable for the whole house. If you do have TRVs,

you can choose a slightly higher setting to make

sure that even the coldest room is comfortable, then

prevent any overheating in other rooms by adjusting

the TRVs.

Room thermostats need a free flow of air to sense

the temperature, so they must not be covered by

curtains or blocked by furniture. Nearby electric

fires, televisions, wall or table lamps may prevent the

thermostat from working properly.

Drayton

MiStat

TM

N

Room Thermostat

Model: N110R

Invensys

Customer Service Tel: 0845 130 5522

Customer Service Fax: 0845 130 0622

Technical Helpline: 0845 130 7722

Website: www.draytoncontrols.co.uk

E-mail: customer.care@invensys.com

l

@DraytonControls

x

/DraytonControls

EU Design Regs:- 002180638-1/2/3

User Guide 06490191001 Iss E

MiTime

MiStat

MiTime

MiStat

HOMEOWNER Guide

HOMEOWNER Guide

→

Symbol in

display

Function Description

Comfort setting

Selects the comfort setting. The pre-set value is used each time when activated,

adjustable within the user settings (see step 3).

Eco setting

Selects the Eco setting. The pre-set value is used each time when activated,

adjustable in the user settings (see step 3).

None

Home screen

Indicates that the pre-set temperatures were changed via +/- key

Step 1: Keys and Display - MiStat

RF Pack: MiStat N110R

→

Step 2: +hr (Timer)

Press +hr to start the Timer. The prior used

temperature and time will be displayed and the

temperature will flash.

MiStat

Press +/- to adjust +hr temperature, then press ( )

to confirm.

Press +/- to adjust +hr period between 0 and 23 hours.

Press (

) to confirm.

→

Step 3: Additional User Settings

ID Feature: Description: Factory Pre-Set:

1 MAX-TEMP

It will not be possible to set a

higher temperature

If MAX-TEMP and MIN-TEMP are set to the

same value, it will not be possible to change

temperature with the +/- keys.

30°C

2 MIN-TEMP

It will not be possible to set a

lower temperature

5°C

3 ECO-TEMP

ECO Temperature used for energy saving periods e.g. during the night ( )

16°C

4 COMF-TEMP

Comfort Temperature used for comfort periods e.g. during the day ( )

21°C

DONE

Exit from the settings menu to USER-S

To enter User Settings

Press + & – keys for approx. 5

Seconds to enter the settings

menu as shown below.

Press Select (

) to enter the user

settings.

→

Battery Handling

Batteries, rechargeable or not, should not be disposed

of into ordinary household waste. Instead, they must be

recycled properly to protect the environment and cut down

the waste of precious resources.

Your local waste management authority can supply details

concerning the proper disposal of batteries.

In compliance with the EU Directive 2006/66/EC, the button

cell battery located on the printed circuit board inside the

product, can be removed at the end of the product life, by

professional personnel only.

Step 4: Changing the Batteries

How do I know when to change

the batteries?

When the batteries start to run low a battery icon will

flash in the display to indicate “low battery”, during

this time the MiStat will function normally. When

the battery icon alone is shown in the display, the

batteries are completely exhausted and the MiStat will

cease to function (see below). Re-activate by replacing

the batteries.

How to replace the batteries

Remove the battery covers as shown. Replace the batteries with 2 x 1.5V IEC LR6 (AA) Alkaline batteries ensuring

correct orientation. Replace the battery covers pressing fully home.

Battery Covers:

Slide outwards

to remove

MiStat Rear

Step 5: Receiver - Key & LED

Lamp

colour

Mode Action Key

Function

Green Normal Call for heat

(boiler is firing)

None

Green

Flashing

Normal RF

communication

None

Off Normal No call for heat

(boiler is not

firing)

None

Red RF loss

or not

bound

No call for heat Switches

the boiler

On

Amber RF loss

or not

bound

Call for heat Switches the

boiler Off

LED: See table below for details

Key: See table below for details

MiStat

MiStat

MiStat

MiStat

MiStat

To set a suitable temperature for up to 23 hours, e.g.

for short term absence.

Now the timer is running. The time will be counted

down each hour.

Once the time has elapsed, control returns to the prior

temperature screen.

The Timer can be cancelled by pressing

key or by

setting the +hr period to 0.

To exit User Settings

Press + & – keys for approx. 5

seconds to exit.

If there is no key pressed for

2 minutes, the system will exit

the menu, any changes will be

saved.

✎ Troubleshooting:

1 Setting temperature values is restricted

a

Are Minimum/Maximum temperatures activated?

see Homeowner Guide Step 3.

2

NO SIGNAL is visible on the screen, no reaction on

key presses anymore

a

Is the receiver powered? (Red signal lamp should

be visible)

3 LOCKED is displayed

a see Installation Guide Step 5 - LOCK

MiStat

Current set temperature

Call for heat indication.

This flame will be visible

when the heating

temperature is below

the set temperature.

+hr key: Press to set a

suitable temperature

for up to 23 hours (see

step 2).

Select key: Press

to open and save

editor screens

+ & - keys:

Press to change

the current

temperature.

Current room temperature

Current Setting,

see table below

key: Press to toggle

between Comfort

setting, Eco setting and

Home

(Room thermostat only).

See table below.

Customize the controller according to personal requirements.

4 Is the battery symbol visible?

a Replace batteries, see Homeowner Guide Step 4.

5

STARTING is visible on the screen, no reaction on key

presses anymore

a

Is the receiver powered? (Red signal lamp should

be visible)

6

WAIT is visible on the screen, no reaction on key

presses anymore

a

Is the receiver powered? (Red signal lamp should

be visible)

RF transmission indication. The

RF symbol will be visible as

follows,

Short flashes = RF transmission

Continuous flashing = RF signal

issue

6444 Invensys MiStat N 06490191001 IssE.indd 1 27/09/2013 09:26

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