Technical data

SHR 521 20
© Drayton 06334 SHR 521 20.monen.indd
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4. Control parameters and menu mode
4.1 Mode-overview
Legend:
x
Corresponding mode is available.
x*
Corresponding mode is available if the appropriate option
is activated.

Corresponding mode is only available if the option heat
quantity measurement is activated (OWMZ).
MEDT
The mode antifreeze content (MED%) is only shown if a
medium other than water or Tyfocor LS / G-LS (MEDT
0 or 3) is used. The adjustment is only appropriate when
using other types of antifreeze.

Corresponding mode is only available if the option heat
quantity measurement is deactivated (OWMZ).
Please note:
S3 and S4 are only indicated if sensors are connected.
mode
Arr specification page
1 2*
COL x x Temperature collector 1 11
TST x Temperature store 1 11
TSTL x Temperature store 1 lower 11
TSTU x Temperature store 1 upper 11
S3 x Temperature sensor 3 11
TRF
 
Temperature return flow 11
S4
 
Temperature sensor 4 11
h P x Operating hours relay 1 11
h P1 x Operating hours relay 1 11
h P2 x Operating hours relay 2 11
kWh
 
Heat quantity kWh 12
MWh
 
Heat quantity MWh 12
Arr 1-2 System 9
DT O x x Switch-on temperature difference 13
DT F x x Switch-off temperature difference 13
S MX x x Maximum temperature store 1 13
EM x x emergency temperature collector 1 14
mode
Arr specification page
1 2
OCX x x Option collector cooling collector 1 14
CMX x* x* Maximum temperature collector 1 14
OCN x x Option minimum limitation
collector 1
14
CMN x* x* Minimum temperature collector 1 14
OCF x x Option antifreeze collector 1 14
CFR x* x* Antifreeze temperature collector 1 14
OREC x x Option recooling 15
O TC x x Option tube collector 15
AH O x Switch-on temp. for thermostat 1 15
AH F x Switch-off temp. for thermostat 1 15
OHQM x Option WMZ 12
FMAX
 
Maximum flow 12
MEDT
 
Antifreeze type 12
MED% MEDT MEDT Antifreeze content 12
HND x x Manual operation relay 1 16
HND2 x x Manual operation relay 2 16
LANG x x Language 16
PROG XX.XX Program number
VERS X.XX Version number