background image

Client

Invensys

File Name

7406 Drayton Update MiStat N 06490191001 IssF

Artworker

-

Proof Stage

PRINT

Finished Size

A3 297x420mm

Creative Director

Mike Lane

Artwork %

100%

Modification Date

18/05/15 9:38AM

Bleed

3mm

1.2m

ID

Feature:

Description:

Factory Pre-Set:

5

BACKLIGHT

Available options are:  On with timeout (TIMED),  Always Off (OFF)

TIMED

6

OFFSET

Adjust displayed temperature to suit personal needs (-5 to 5°C)

0.0°C

7

LOCK

Protect MiStat against unauthorised use. If active, any key press will show LOCKED for a few Secs.
To lock: Enter your 3 digit code for protection.
To unlock: Press +&- key for approx. 5 sec. Enter your 3 digit code

000
Master code 401

8

CTRL-TYPE

Confi gure the control parameters for the specifi c application

9

CTRL-ALG

Select TPI, TP or On/Off

TPI

CYCL-RATE (only shows when CTRL-ALG is TPI 
or TP)

Select 6 (GAS) cph (cycles per hour), 12 (ELECtric) cph or 3 (OIL) cph

6 cph

HYST (only shows when CTRL-ALG is On/Off)

Select OFF, 0.1 to 5°C (OFF = No temperature hysteresis, even on very low temp. changes, the 
relay will switch over according to MIN-OnOFF time)

0.5°C

MIN-OnOFF (only shows when CTRL-ALG is On/Off)

Select 1 to 30 minutes (The minimum duration for the relay to be On or Off)

5 min

DONE  

To exit CTRL-TYPE sub menu

10

VALV-PROT

The output will be activated for the specifi ed time (in Minutes). This will happen weekly, related to 
the last actuation of the output. Select OFF, 1 to 10 Minutes.

OFF

11

WIRELESS

To create a radio link with the receiver or to view the RF signal quality

Pre-bound

12

BIND

Press 

( )

 key to start connecting to the receiver.

NB. “binding” must also be activated on the receiver, see Step 6 Commissioning

BINDING

An RF connection to the receiver will be created. If successful, the SIGNAL level will be displayed.
If unsuccessful, FAILED will be displayed.

13

SIG-LEVEL

Indicates the quality of the RF transmission
VERY GOOD, GOOD, POOR, NO SIGNAL

DONE

To exit WIRELESS sub menu  

15

PROD-INFO

View the product details, e.g. Part number, Firmware revision etc. Use 

( )

 key to show the details

16

RESET

Will reset all settings to factory pre-sets 

OFF

DONE

Exit from the settings menu to INST-S

 

INSTALLATION

 Guide

Step 3:

 Signal Strength

The MiStat Room thermostat is prebound to the 
MiStat receiver in the factory so they just need 
to be positioned in the best place for wireless 
communication. To help with this there is a built in 
Signal strength indicator, available in the Installer 
settings menu on the MiStat thermostat, as shown. 

It is recommended that the signal strength is Good 
or Very Good to ensure ongoing communication is 
maintained. 

To enter signal strength menu

 (see step 5 for more detail))

•  Press + & - for approx. 5 secs, then scroll (+/-) to show

INST-S, 

• press 

( )

 to enter the installer menu, 

• Press +/- until 11 WIRELESS is shown,
• press 

( )

 to enter,

• press +/- to show 13 SIG-LEVEL as shown,
• press 

( )

 to see the current signal strength.

Step 4:

 Mounting Options

Step 5:

 Installer Settings

Once the best position has been identifi ed, the MiStat N 
should be fi xed to the wall using the wall bracket as 
shown.

Customize the MiStat according to application needs.

NB. MiStat can also be positioned using the table 
stand included.

Care should be taken to mount the thermostat in a
position which is not subject to direct sunlight or 
draughts. Preferably it should be mounted on an inside 
wall about 1.2m (4ft) above the fl oor in a position where 
it can respond to room temperature but away from the 
direct infl uence of radiators or other appliances giving 
off heat.

Step 1:

 Mounting the Wall-plate

Step 2:

 Wiring

IMPORTANT:

Installation must only be carried out by a 
qualifi ed electrician or heating engineer.

Make sure mains input has a 3 amp fuse.

CAUTION! Before installation, make sure the 

mains supply is switched off!

Option 2: Using an existing wall-plate

Loosen the securing screws on the old receiver 
and unplug it.  Check that there’s 20mm 
clearance to the right of the wall-plate and 25mm 
above it.  Check the wiring diagram for your 
product model to compare terminals and, if 
necessary, change the wiring of the wall-plate to 
suit.  Now plug the MiStat R unit into the 
wall-plate and tighten the securing screws.

Check the 3A fuse, and switch on the mains.

Option 1: Fitting a new wall-plate

The ideal location is close to the boiler or central 
heating system.  For the best performance install 
in an open space, at least 30cm distance from any 
metal objects including wall boxes and the boiler 
housing.  It is recommended that the MiStat R is 
mounted on the wall nearest the fi nal location of 
the MiStat N room unit and not less than 30cm 
from the boiler side panel. 

Loosen the securing screws, remove the wallplate 
and, if surface wiring is to be used, snap out 
the cable entry strip on the bottom edge of the 
wallplate with a pair of pliers.  Fix the wallplate, 
terminals at the top, either direct onto the fl at 
wall using wall plugs and no 6 x1” wood screws 
or on a plastic fl ush mounting single conduit box 
using M3.5 x 14 screws. Check that there’s 20mm 
clearance to the right of the wall-plate and 25mm 
above it.  Complete the wiring to the MiStat R 
wallplate in accordance with the wiring diagram 
in step 2, to comply with current IEE regulations.  
Place the MiStat R onto the wallplate and tighten 
the securing screws. 

Check the 3A fuse, and switch on the mains.

Warning:

 Installing the MiStat R too close to the 

metal side panel or mains cables may interfere 
with the radio signal.

Applications

The electronic room thermostat MiStat N can be used 
for temperature control together with:

•  Boilers
•  Oil and gas warm water heating
•  Actuators of fl oor heating systems or radiators
•  Circulating pumps
•  Heat pumps

   A MiSat R receiver is required for operation.

Note:

 To ensure a properly working heating 

system, the menu items in the Installer settings 
have to be set according to the needs of the 
heating system, see step 5.

Note: 

To ensure a properly working heating system, 

the menu items in Installer settings have to be set 
according to the needs of the heating system.

There can be gaps in the ID numbering.

DO NOT 

use a surface 
mounting box

This product is double insulated and 
does not require an earth connection. 
The MiStat R should be wired to the 
boiler or central heating wiring using the 
correct type of cable or fl ex. The MiStat 
R should be wired to replace hard wired 
room or programmable thermostats, 
as shown on the system or boiler wiring 
diagrams. 

Always check other manufacturers 
instructions for compatibility.

N

L

     2

3

230V AC 50Hz
Fused 3A

Common

heating 

satisfied 

or call for 

cooling

Call for 

heat

Volt free contacts

Combi boiler basic wiring layout

Zone control basic wiring layout

Note:

 If not bound, the bind screen will be visible.

For commissioning see Step 6

Note:

 Only needed if not already bound, ie if 

replacing either the MiStat thermostat or the 
MiStat receiver.

To exit Installer Settings 

Press +/- until ‘DONE’ is shown, then press ‘Select’ or 
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.

1. 

Turn on power for the receiver. The red lamp will 
come on. (if green lamp is visible, the device is 
already bound, no further action needed here)
(If a separate programmer/Timer is fi tted, ensure
that it is switched on)

2. 

Push the button for >5 Seconds and the LED will
fl ash red – yellow – green --- -red – yellow - green…

3. 

Enter binding mode on the corresponding 
MiStat room unit, see Step 5: Installer settings ,
item 11

Important:

 It is essential, that the binding is

carried out between the corresponding room 
unit and the receiver

4. 

If binding is successful, the signal strength will 
be indicated on both the MiStat room unit and 
the MiStat receiver as follows. If unsuccessful, 
FAILED will be displayed. If POOR SIGNAL 
is displayed, look for a better location. If NO 
SIGNAL is displayed, try connecting again with
the room unit in a different position.

MiStat Room Unit

MiStat Receiver

Immediately after binding, these signals will indicate 
the signal quality for 1 minute.
• 

three green fl ashes = Very good signal

• 

double amber fl ashes = Good signal

• 

single red fl ashes = Poor signal

• 

steady red = No signal

To check the wireless connection 

A green lamp on the receiver will indicate a good RF 
connection.

To enter Installer Settings 

Press  

+ & –

 keys for  approx. 5 Seconds to enter the 

settings menu as shown.

Note:

 If not bound, the bind screen will be visible.

For commisioning see Step 6

Technical Data

Step 6:

 Commissioning

MiStat N110R & MiStat  R111M

Supply voltage 

MiStat N: 2 x AA 1,5V alkaline 
batteries
MiStat R: 230V

Switch rating 

MiStat R: 2(1)A 230V a.c.

Ambient 
temperature 

Operating: 0°C to 45°C;  
Storage: –20°C to 55°C;

Battery life

MiStat N: 2 years (typically)

Temperature 
range

5°C to 30°C

Temperature 
resolution

0.5 °C, display and setting

Control accuracy

<0.6°C at 4°/hour

Wiring

Mistat R: Fixed wiring only, to comply 
with current IEE regulations (BS7671)
MiStat N: No wiring required

Mounting

MiStat R: Industry standard wallplate
MiStat N: Wall bracket or table stand

Radio frequency

868.3 (Bi-directional communication)

Radio signal range

30m typically.  The range may be 
affected by the composition / density 
and number of walls between the 
MiStatN and MiStatR

Pollution degree

2

Software class

A

Rated impulse 
voltage

MiStat R: 2.5kV

Ball pressure test 
temperature

MiStat R: 75°C

Energy Class

IV = 2% (According to EU 811/2013,
812/2013, 813/2013, 814/2013)

Relevant EC 
Directives:

2006/95/EC Low Voltage Directive 
2004/108/EC Electromagnetic 
Compatibility Directive
1995/5/EC R&TTE Directive
2006/66/EC Battery Directive
2011/65/EU RoHS Directive

Applied 
Standards:

EN60730-1; EN60730-2-9
ETSI EN 300 220-3; ETSI EN 301 489-3

eg.

eg.

eg.

eg.

User Code:

 

N     L     1     2      3

L

MiStat R

MiStat R

Switched live 

from wiring 

centre

Motorised valve

N

To boiler

and/or

pump

Radio signals 

to MiStat R - no wiring

230V AC

fused 3A

N     L     1     2      3

 L  -
 N -

Radio signals 

to MiStat R - no wiring

Switched 

230V AC

fused 3A,

Internal

boiler

electronics

External

controls

connections

N     L     1     2      3

L

 

MiStat R

MiStat R

Switched live 

from wiring 

centre

Motorised valve

N

To boiler

and/or

pump

Radio signals 

to MiStat R - no wiring

230V AC

fused 3A

N     L     1     2      3

 L  -
 N -

Radio signals 

to MiStat R - no wiring

Switched 

230V AC

fused 3A,

Internal

boiler

electronics

External

controls

connections

If POOR is displayed, look for a better location.
If NO SIGNAL is displayed, try connecting again with 
the room unit in a different position.

Caution! 

The radio receiver may be installed only by a competent
electrician in compliance with the circuit diagram 
enclosed in the top housing cover or in compliance 
with these instructions. The current safety regulations 
must be observed.

In order to achieve protection class II, adequate 
installation measures must be taken.

This radio receiver, which can be installed separately, 
is designed exclusively for temperature control in dry 
and closed rooms and standard environments. This 
electronic device was created according EN60730-1, it 
operates according working principle 1C.

It has to be placed in a location where it will be able to 
control the room temperature.

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