Heatmiser HC User manual

Operating Instructions

Model :HC

HC-N

This product should be installed byaqualifiedelectrician.

Improper installation may result ininjury,death or

property damage.

ContentsTable

Contents 1

What is aroom thermostat 2-3

What is aprogrammable thermostat 4-6

Installation 7-8

Initial SetupProcedure 9-12

Symbols Explained 13

Button Layout 14

TemperatureDisplay 15

Setting the Clock 15

TemperatureOverride 16

Fan Speed Select 16

Heating Mode Operation 17-18

Cooling Mode Operation 19

Auto Heating&CoolingOperation 20-21

Keylock 22

Wiring

Wiring Diagram 23-28

Whatisaroomthermostat?

Aroomthermostat simply switches the heating systemon and off

as necessary.It works by sensing the air temperature, switching

on theheating when the air temperaturefalls belowthe thermostat

setting,and switching it offoncethis set temperature has been

reached.

Turning aroomthermostat toahigher setting will not make the

room heat up anyfaster.Howquickly the room heats updepends

on thedesign of the heating system, forexample, the size of the

boiler and radiators.

Neitherdoes the setting effect how quickly the rooms cools down.

Turning aroomthermostat toalower setting will result in the room

being controlled atalower temperature,and savesenergy.

The heating systemwill notwork if atime switchor programmer

has switched it off.

The way to set and use yourroom thermostat is to findthe lowest

temperature setting that youare comfortablewith and then leave it

alone to do itsjob. The best way to dothis is to set the room

thermostat to alow temperature -say 18ºC- and turn it up by 1ºC

each day until you are comfortable with the temperature. You wont

have to adjust the thermostatfurther.Anyadjustment above this

setting will waste energyand costyou more money.

Ifyour heating system is aboiler with radiators, there will usually be

only one roomthermostat tocontrol thewhole house. But you can

have different temperaturesin individual rooms byinstalling

thermostatic radiator valves(TRV’s)on individual radiators. If you

don'thave TRVs you should choose atemperature that is

reasonable for the wholehouse. If you do haveTRVsyou can

choose aslightly highersetting to make sure that even thecoldest

room is comfortable, then prevent any overheating in other rooms

byadjustingthe TRVs.

Room thermostatsneedafree flowof air to sense the temperature,

sothey mustnot be covered by curtainsor blockedby furniture.

Nearby electric fires, televisions, wall or table lamps may prevent

thethermostat fromworkingproperly.

Whatisaprogrammableroomthermostat?

Aprogrammable room thermostat is both aprogrammer and a room

thermostat. Aprogrammer allows you toset On and"Offtime peri-

ods to suit your own lifestyle. Aroom thermostat works by sensing

theair temperature, switching on the heating when the airtempera-

ture falls below the thermostat setting, and switching it offonce this

set temperature has been reached.

So, aprogrammable room thermostat lets youchoose what times

you want theheating to be on, and what temperature it should

reach while it is on. It will allow youto selectdifferent temperatures

inyour homeat different times of the day (and days of the week) to

meet your particular needs.

Turning a programmable roomthermostat to ahigher setting will not

make the room heat upany faster.How quickly the roomheatsup

depends on the design ofthe heatingsystem, for example, the size

ofthe boiler and radiators.

Neither doesthe settingeffect how quickly the room cools down.

Turning a programmable roomthermostat to alower setting will

result in theroom beingcontrolledat alower temperature, and

saves energy.

The way to set and useyour programmable room thermostatis to

find the lowest temperature settingsthat you are comfortable with

and the differenttimes you have chosenand then leave it aloneto

doits job.

The best wayto do thisis to set lowtemperatures first,say 18ºC,

and then turnthem up byone degreeeach dayuntil you are

comfortable with the temperatures. Youwont haveto adjust the

thermostat further.Any adjustment abovethese setting will waste

energy and cost you more money.

Ifyour heating system is aboiler with radiators, there will usually be

only one programmableroom thermostat to controlthe whole

house. But you can havedifferent temperatures inindividual rooms

byinstalling thermostatic radiator valves (TRVs)on individual

radiators. If you don't have TRVs, you should chooseatemperature

that is reasonable for thewhole house. If you do have TRVs, you

can choose a slightly higher settingto make sure that even the

coldest roomis comfortable,then prevent any overheating in other

rooms by adjusting the TRVs.

The time onthe programmer mustbe correct. Some types have to

beadjusted in spring andAutumn atthe changebetween

Greenwich Mean Timeand BritishSummer Time.

You maybe able to temporarilyadjust theheating programme, for

example “Override”, “Advance” or“Boost” Theseare explained in

themanufacturers instructions.

Programmable room thermostatsneed afreeflow of airto sense

thetemperature, so theymust notbe coveredby curtains or blocked

byfurniture.Nearby electric fires,televisions,wall or table lamps

may preventthe thermostat from working properly.

Installation Procedure

DO`s

1.Do mount the thermostat ateye level.

2.Do read theinstructions fully so that you getthe best from our

product.

DON’T`s

1.Do not install near adirectheat sourceas this will effect the

workings of the thermostat.

2.Do not pushhard on the LCD otherwise youwill damage the liquid

crystaldisplay andthis is notrepairable.

Installation

The thermostat isdesigned tobe flush mount, aback box of 35mm

should have been sunk in the wall prior to installation.

Step1

Carefully separatethe front half of the thermostat from the back

plate by placing asmallflat head terminal driver in to theslotson

thebottom face of the thermostat.

Step2

Carefully unplug the ribbon connector which isplugged into the

front half of the thermostat.

Place the thermostat front half somewhere safe.

Terminate thethermostat asshown in the diagramsat the backof

this booklet.

Screw the thermostat back plate on to the back box

Step3

Re-connect the thermostat ribbon cableand clip thetwo halves

together.

Step4

Turn on the power tothe thermostatand allow

thethermostat to stabilise for 1hour before

calibrating.

HowToSetup Your Thermostat

This thermostat has many options available to you.Once youhave

set these settings you can leave them. They will be stored inthe

thermostat memory and do not need to be adjustedlater.

You needto use the table opposite asareferenceguide when

initially setting up the thermostat.

Westrongly suggest you read the nextfew pages so that you fully

understand the features available and theintended use.

You should also understandthat by enabling one feature, another

feature maybe made unavailable. Thisis becausethe featureis not

available in that mode.

Pleaseread thefeatures now,and then follow the setup routine

on the followingpages.

This manual suits for next models

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