Danfoss 103E5 Bedienungsanleitung PDF herunterladen (Seite 3)

MINI-PROGRAMMERS

A mini-programmer is simply a time switch with a slave Heating terminal (Fig. 3). It can control both Heating and

Hot Water simultaneously, and allow Heating to be switched on/off manually. These controls do not allow Heating

without Hot Water.

Fig. 3. Typical Mini-programmer internal wiring configuration

STANDARD PROGRAMMERS

Standard programmers provide reasonably independent control of Heating and Hot Water in fully pumped systems.

They have two output channels (Fig. 4) but, because both channels operate on a common time-base, they require

the same time settings for heating and hot water. Within these time settings, selection of continuously On,

continuously Off, Timed (follows switching programme) and All Day (from first On to last Off) is possible. There

is usually a means of linking both outputs to prevent Heating operating without Hot Water when used with semi-

gravity systems.

FULL PROGRAMMERS

These have two output channels (Fig. 4) operating on totally independent time-bases. This means that Heating

and Hot water can be programmed to switch On and Off whenever needed, irrespective of the other channel’s time

settings. As with standard programmers, a means is provided of linking both outputs to prevent Heating operating

without Hot Water when used with semi-gravity systems.

Fig. 4. Typical internal circuit covering both standard and full programmers

Fully independent electronic programmers provide the benefit of totally different switching programmes for both

channels, allowing greater flexibility and savings. They can also provide many additional features such as Heating

boosts, optimum start control and holiday programming.

TIMER

1 2 3

5 6

COM

N/O N/C

COM

OFF

Voltage Free Outputs

Mains

TIMER

N/O

N L 1 2 3 4

OFF

DHW

Mains

OFF

HTG

DHW

N/O

N/C

1 2 3 4 5 6

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Danfoss 103E5 Bedienungsanleitung Seite 3