29
7115344.01 - en
INSTRUCTIONS PERTAINING TO THE INSTALLER
7KH6,(0(16PRGHO4$&RXWGRRUWHPSHUDWXUHVHQVRUPXVWEHFRQQHFWHGWRWHUPLQDOVRIWHUPLQDOERDUG
0LQÀJXUH
The procedures for setting the gradient of the temperature curve “kt” vary depending on the accessories con-
nected to the boiler.
a) Without QAA73 room temperature regulator:
The temperature curve “kt” must be selected by setting parameter H532 as described in section 14 “setting the
boiler parameters”.
See graph 2 for selecting the curve referred to a room temperature of 20°C.
The chosen curve can be shifted by pressing the
EXWWRQRQWKHERLOHUFRQWUROSDQHODQGPRGLI\LQJ
the value displayed by pressing the
and
. keys. See graph 3 for curve selection. (The example show
in graph 3 refers to the curve Kt=15).
Increase the value displayed if the room temperature required is not reached inside the premises for central heating.
b) With QAA73 room temperature regulator:
The temperature curve “kt” must be selected by setting parameter 70 “HC1 curve” of the QAA73 room tem-
perature control device as described in section 12.4 “QAA73: parameters which can be set by the installation
(service) engineer”.
See graph 4 for selecting the curve referred to a room temperature of 20°C.
The curve is shifted automatically on the basis of the room temperature set using the QAA73 climate control.
,IWKHV\VWHPLVGLYLGHGLQWR]RQHVWKHWHPSHUDWXUHFXUYH´NWµUHODWLQJWRWKHSDUWRIWKHV\VWHPQRWFRQWUROOHGE\WKH
QAA73 must be selected by setting parameter H532 as described in section 14 “setting the boiler parameters”.
Graph 2
Graph 3
TM = Flow temperature
Te = Composite outside temperature
Sth = Kt Curve
TM = Flow temperature
Te = Composite outside temperature
020523_0600
020523_1000
12.6 CONNECTING THE OUTDOOR TEMPERATURE SENSOR PROBE
Graph 4
c) With AGU2.500 for control of a low temperature system:
5HIHU WR WKH LQVWUXFWLRQV SURYLGHG ZLWK WKH$*8 DFFHVVRULHV IRU FRQQHFWLRQ DQG FRQWURO RI D YDULDEOH
WHPSHUDWXUH]RQH