Hydraulic Components

SDC / DHC

 

 

Tank parallel operation (combined operation: hot-water loading/heating)

10s

10s

1min

1min

WEZ1

WEZ2

WEZ3

WEZ4

WEZ5

2min

2min

2min

2min

•Connection up to the stage of parameter 09 with minimum delay for hot-water loading

•In case of further need via heating, further connection with configured delay of parameter 02

•Reversion with configured delay parameter 03

7.3.5.2Circulation pump (CIR.)

NOTE This function is only available, if a variable output is assigned to a circulation pump

Function The output controls a hot-water circulation pump.

Economy interval The use of the economy interval minimises the usual circulation (pulse) losses owing to adjustable switch-on intervals during operation

and determines the standstill time of the hot-water circulation pump within an adjustable period (economy interval).

Economy interval This parameter determines the length of the period and hence the (period duration) duration of the pause in a circulation pump pulse operating mode.

Economy interval Pause = Economy interval Period duration - Economy interval Pulse

The switching-on degree is calculated from the ratio:

n = Pulse time/Period duration x 100 (%)

Example:

With an standstill time of 15 min. and a period of 20 min., the circulation pump will run for 5 min. before the subsequent pause of 15 min.

The following is used to calculate the switching-on degree: n = 5/20 = 25%

Switching times In this function a hot-water circulation pump can be coupled to an existing automatic program of a control circuit with regard to the

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Honeywell EN2H-0221GE51 R0808 service manual Circulation pump CIR, Example
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EN2H-0221GE51 R0808 specifications

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