Bedienungsanleitung Danfoss 811 (Seite 2 von 2) (Englisch)

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If an incorrect key is pressed then press the ‘Cancel’ key and recommence

the sequence.

If a programme event is repeated at the same time on diﬀ erent days then

the keying may be simpliﬁ ed as follows.

Key in the ﬁ rst event using the normal entry sequence. Now simply key

in the new day number and then ‘Enter On’ or ‘Enter Oﬀ ’ as required.

The complete programme may be checked by the use of the ‘Verify’ key.

Each press of this key will advance the programme by one event allowing

a complete review in chronological sequence commencing from the day

and time on display. If a particular day’s programme is to be reviewed then

key the day number followed by

0 0 0 0 and Verify

when the ﬁ rst programmed event for that day will be displayed then

proceed with repeated presses of the ‘Verify’ key.

When reprogramming one or more events, unwanted events must be

cleared by advancing to the event in question using the ‘Verify’ key as

explained above and then clearing it by a single press on the ‘Cancel’ key.

To clear the entire programme, press and hold down the ‘Cancel’ key for

approximately 3 seconds until the display shows

E EEEE

On completion of the programming return the key to Run and the selector

switch to Auto.

Extend Facility

The mains electricity supply must be ON and the keyswitch set to Run

before using the facilities detailed on this page.

The unit is supplied with an extend facility to allow additional periods of

operation without disturbing the set programme.

The extend period is set to 1 hour, but at the time of installation this can

easily be altered.

To alter the extend period:

Insert the key and turn to Set Programme

Press ‘Extend’ and the display will show the extend period.

Press any of the numerical keypads to alter the extend period to 1 to 8

hours or 0 to disable the function (display will show ‘nil’), or 9 for a constant

extend period (display will show ‘con’).

Once the required extend period is displayed, press ‘Enter On’ and the

new extend period will be stored.

Using the Extend Function:

With the keyswitch set to Run, pressing ‘Extend’ activates the additional

period of operation.

If the key is pressed when the output is ‘Oﬀ ’ it will switch on immediately

and will automatically switch oﬀ after the extend period has elapsed. The

associated red indicator light will be illuminated throughout the extend

period.

If the key is pressed when the output is ‘On’ the current ‘On’ period will be

extended by the length of the extend period. The red indicator light will

be illuminated until the output is switched oﬀ .

The Extend facility may be cancelled at any time by pressing the key

again, when the indicator light will go out and the unit will revert to the

set programme.

Crop Facility

This facility enables a current ‘On’ period to be cancelled without having

to disturb the set programme.

If the ‘Crop’ key is pressed when the output light is illuminated it will

switch the output oﬀ until the next programmed ‘On’ event. During

the remainder of the present ‘On’ period the associated red light will be

illuminated and the output light will be oﬀ . The programme event light

will remain unchanged.

Pressing the ‘Crop’ key again will cancel the Crop facility and restore the

unit to the set programme.

Note: Pressing the ‘Crop’ key when the output is already programmed to

be oﬀ will have no eﬀ ect.

BATTERY RESERVE

The unit does not rely on the internal battery in order to work satisfactorily

providing the mains power supply is connected to the unit. The battery is

ﬁ tted purely to memorise the Time of Day and selected Switching Times

in the event of a power failure or disconnection of supply.

When the unit is ﬁ rst connected it will require a minimum of 24 hours to

become suﬃ ciently charged in order to perform this memory function.

Thereafter the battery is automatically recharged.

If the mains power supply is lost, for any reason, the display and lights on the

unit will go out and the output will be switched oﬀ . The battery will maintain

the memory for a period of up to 3 months during this condition. When

the power supply is restored, the unit will automatically switch on again

and resume the set programme without any resetting being necessary.

Danfoss Randall can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss Randall reserves

the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without

subsequent changes being necessary in speciﬁ cations already agreed.

Danfoss Ltd

Ampthill Road,

Bedford MK42 9ER.

Tel: (01234) 364621 Fax: (01234) 219705

Email: ukheating@danfoss.com

Website: www.heating.danfoss.co.uk

Part No: 3044 Issue 7 12/05

Example Monday Tuesday Wednesday Thursday Friday Saturday Sunday

Assigned Day No. 1 2 3 4 5 6 7

Event/Time ON 0830 ON 0929 ON 0436 OFF 0034 ON 0929 ON 0853

OFF 1342 OFF 2317 OFF 1129 ON 0708 OFF 2317 OFF 1342

ON 1916 OFF 1723

Record Monday Tuesday Wednesday Thursday Friday Saturday Sunday

Assigned Day No.

Event/Time

Danfoss 811 Seite 2

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