Horstmann HFT4 Handleiding

Horstmann Thermostaat HFT4

Lees hieronder de 📖 handleiding in het Nederlandse voor Horstmann HFT4 (6 pagina's) in de categorie Thermostaat. Deze handleiding was nuttig voor 50 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld

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The HRT4-A is a 230 volt electronic room thermostat designed to provide

optimum comfort with close control of the energy used to heat the home.

These instructions also apply to the HFT4 frost thermostat and the HTT4 tamper

proof thermostat.

INSTALLATION AND CONNECTION OF THE HRT4-A, HFT4 AND HTT4 MUST BE CARRIED

OUT BY A SUITABLY QUALIFIED PERSON.

WARNING: ISOLATE MAINS SUPPLY BEFORE COMMENCING INSTALLATION.

The HRT4-A will only operate on a 230 Volt mains electricity supply and until

power is connected the thermostat will be inoperative.

Mains Operated Electronic Room Thermostat

with TPI temperature control software

HRT4-A, HFT4 and HTT4

User and Installation Instructions

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 18°C - 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.

Additional User information

Set the dial to the required room temperature by lining up the temperature marked on the dial

in degrees C against the setting mark to the left of the dial.

The indicator light will be On when the thermostat is ‘calling’ for heat.

(In other words the thermostat has detected that the room is not warm enough compared to its

set temperature).

If the indicator light is Off then either the room thermostat is sensing that it is warm enough and

has switched Off or that the timeswitch/programmer has switched Off.

N.B. If the timeswitch or programmer has switched Off the thermostat will not operate.

What is a room thermostat? ... an explanation for householders

User Instructions

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The HRT4-A should be mounted on an internal wall

approximately 1.5 metres from floor level and should be in a

position away from draughts, direct heat and sunlight. Ensure

that there will be enough space to allow easy access to the

two retaining screws located at the base of the wall plate.

N.B. For the HFT4 Frost Thermostat, locate in the coldest part

of the house to be protected.



To remove the wall plate from the HRT4-A undo the two retaining

screws located on the underside, the wall plate should now be easily

removed. Once the wall plate has been removed from the packaging

please ensure the HRT4-A is re-sealed to prevent damage from dust,

debris etc.

The wall plate should be fitted with the wiring terminals located at

the top and in a position which allows a total clearance of at least

50mm around the HRT4-A thermostat.



Offer the plate to the wall in the position the HRT4-A is to be mounted and mark the fixing positions

through the slots in the wall plate. Drill and plug the wall, then secure the plate in position.

The slots in the wall plate will compensate for any misalignment of the fixings.



The HRT4-A wall plate may be fitted directly on to a single gang steel flush wiring box complying

with BS4662, using two M3.5 screws. The HRT4-A is suitable for mounting on a flat surface only, it

must not be positioned on an unearthed metal surface.



All necessary electrical connections should now be made. Flush wiring can enter from the rear

through the aperture in the wall plate.

The mains supply terminals are intended to be connected to the supply by means of fixed wiring.

The HRT4-A is mains powered and requires a 3 Amp fused spur. The recommended cable size is

1.0mm2.

The HRT4-A is double insulated and does not require an earth connection, an earth connection

block is provided on the backplate for terminating any cable earth conductors. Earth continuity must

be maintained and all bare earth conductors must be sleeved. Ensure that no conductors are left

protruding outside the central space enclosed by the backplate.





Product specificaties

Merk:	Horstmann
Categorie:	Thermostaat
Model:	HFT4

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