M03Q40G6-03 30/07/08 pag 24
SANITARY HOT WATER: COMPENSATION OF THE SET POINT FOR EXTERNAL TEMPERATURE *
The set point can be compensated according to the external temperature in 2 modes:
1. hot season thermal efficiency curve
when the external temperature is high, the sanitary hot water set point is decreased; in this manner the thermal
efficiency is increased
curve A in the graph
the compensation is enabled in the standard configuration
2. compressor operation limit
when the external temperature is particularly cold, the sanitary hot water set point is decreased in order to guarantee
operation of the compressor even near its operation limits
curve B in the graph
the compensation must be enabled during start-up
PARAMETERS INDICATIVE VALUES
T EXT
P 12
P 13
SET POINT
40 °C
37 °C
P 175
P 74 P 160
A
B
T EXT
15°C
7 °C
SET POINT
40 °C
37 °C
35 °C
-2 °C-15 °C
A
B
par Description Meaning value
12 CextMaxH Ext. Temp. max. winter correction 15
13 CextMinH Ext. Temp. min. winter correction 0
73 EnLimiteTExtH Enable corr. SP Heat for external air limit 0
74 TlimiteMaxH Outside temperature for max SP Heat -5
115 CompExtH2OS Enable comp. for External Temp. of the sanitary hot water set point 0
116 MaxCompH2OS Maximum outside T correction for sanitary hot water set point 10
152 TextEn EXT. Air probe presence 1=YES, 0=NO
160 TlimiteMinH Outside temperature for min SP Heat -15
175 MinSetLimiteH Minimum value that can be set for SP Heat 35
* only WSHH
To Next Page
Loading...
Need help?
General