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Siemens Building Technologies
Basic Documentation RVL471
CE1P2524E
HVAC Products
Contents
23.10.2002
14.2.2
Maximum limitation of return temperature differential (DRT limitation)..........60
14.2.3
Integral action time.........................................................................................61
14.2.4
Minimum stroke limitation (suppression of hydraulic creep) ..........................61
14.2.5
Limitation of the volumetric flow.....................................................................61
15
Function block "Maximum limitation of the return temperature, d.h.w." .........62
15.1
Operating line.................................................................................................62
15.2
Purpose..........................................................................................................62
15.3
Function .........................................................................................................62
16
Function block "Basic settings d.h.w." ...........................................................64
16.1
Operating lines...............................................................................................64
16.2
Assignment of d.h.w. heating.........................................................................64
16.3
Program for the circulating pump...................................................................64
16.3.1
General mode of operation ............................................................................64
16.3.2
Operation of circulating pump during the holiday period...............................65
16.4
Frost protection for d.h.w. ..............................................................................66
16.4.1
Frost protection in the d.h.w. storage tank.....................................................66
16.4.2
Frost protection in the d.h.w. storage tank flow .............................................66
16.4.3
Frost protection for the secondary d.h.w. flow ...............................................66
17
Function block "Release of d.h.w. heating"....................................................67
17.1
Operating line.................................................................................................67
17.2
Release..........................................................................................................67
17.2.1
Function .........................................................................................................67
17.2.2
Release programs..........................................................................................67
17.2.3
D.h.w heating during the holiday period.........................................................68
18
Function block "D.h.w. priority and flow temperature setpoint"......................69
18.1
Operating line.................................................................................................69
18.2
Settings ..........................................................................................................69
18.3
D.h.w. priority .................................................................................................69
18.3.1
Absolute priority .............................................................................................69
18.3.2
Shifting priority ...............................................................................................70
18.3.3
No priority.......................................................................................................70
18.4
Flow temperature setpoint .............................................................................70
18.4.1
Maximum selection ........................................................................................70
18.4.2
D.h.w..............................................................................................................71
19
Function block "D.h.w. storage tank" .............................................................72
19.1
Operating lines...............................................................................................72
19.2
D.h.w. charging ..............................................................................................72
19.2.1
D.h.w. charging with hot water.......................................................................72
19.2.2
Alternate d.h.w. charging with hot water and electricity .................................72
