M0G940E8-00 04/07/08
pag
23
If the unit is at service of an installation only for radiant panels (without mixing valve and fan coil) modify the following pump
configuration parameters:
par
Description
Original value
Correct value
183 MaxTempC
12
8
184 MinTempH
12
8
185 IstTempC
4
2
186 IstTempH
4
2
9.
SET POINT COMPENSATION WITH 4-20 mA SIGNAL (WATER RESET)
It optimizes the energetic efficiency of the unit by automatically changing the set-point according to an external signal of 4-
20 ma type.
It requests the
expansion
plug-in module
option
that must be fitted by the client (refer to the kit instructions) and enabled
by parameter 140 = 1.
This function must be enabled with parameter18 (=0 not enabled, =1 only summer, = 2 only winter, = 3 summer and
winter)
par Description
Meaning
value
18
WaterReset
Water Reset enabling 0=No 1=Cool 2=Heat 3=Always
0
19
MaxCWRH
Max. value of the Winter WR correction
10
20
SWRMAXH
Corresponding signal of the winter max. correction
4
21
SWRMinH
Corresponding signal of the winter min. correction
20
22
MaxCWRC
Summer correction max. value
8
23
SWRMaxC
Corresponding signal of the summer MAX. correction
20
24
SWRMinC
Corresponding signal of the summer MIN. correction
4
140 PlugInEn
Enables
PLUG-IN
presence . 1=YES / 0=NO
SET POINT CURVE IN COOLING
SET POINT CURVE IN HEATING
mA
P 23
P 24
COMP.
MAX
= P22
COMP.
=0
SET POINT
mA
P 21
P 20
COMP.
MAX
= P19
COMP.
= 0
SET POINT
10. SET POINT COMPENSATION ON THE TEMPERATURE OR EXTERNAL ENTHALPY
Optimises unit energy efficiency by automatically adjusting the set-point according to enthalpy or the external temperature.
Requires the
external humidity probe
or the
external temperature probe,
which are optional for certain types of units
and must be installed by the customer and enabled by parameters 152=1 and 156=1.
par Description
Meaning
value
9
CompExt
External temp. comp. enabling 0=No 1=Cool 2=Heat 3=Always
0
10
CextMaxC
Ext. Temp. max. summer correction
15
11
CextMinC
Ext. Temp. min. summer correction
30
12
CextMaxH
Ext. Temp. max. winter correction
15
13
CextMinH
Ext. Temp. min. winter correction
0
14
MaxCExtC
Summer correction max. value
8
15
MaxCExtH
Winter correction max. value
10
16
HExtMinC
Ext. enthalpy min. correction
10,5
17
HExtMaxC
Ext. enthalpy max. correction
13,5
152
TextEn
EXT. Air probe presence 1=YES, 0=NO
156 URProbeExt
Enables
external UR% probe. 1=YES, 0=NO
SET POINT CURVE IN COOLING
SET POINT CURVE IN HEATING
T EXT
P 11
P 10
COMP.
MAX
= P14
COMP.=0
SET POINT
P 17
P 16
T EXT
P 12
P 13
COMP.
MAX
= P15
COMP.
= 0
SET POINT
Summary of Contents for WSAN-XPR 21
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