Westen NOVADENS BOYLER 240, Инструкция по эксплуатации

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96.091.1 - GB InstRUCtIOns FOR FIttERs
15.3 COnnECtInG tHE ExtERnaL pROBE
Connect the SIEMENS model QAC34 external probe (accessory available on request) to terminals 7-8 of the M2 terminal board in
figure 11.
The method for setting the gradient of climate curve “kt” differs depending on the accessories connected to the boiler.
a) without accessories:
Select the “kt” by setting parameter H532 as described in chapter 17 “setting boiler parameters”.
See graph 1 to select a curve for a room temperature of 20°C.
To shift the selected curve, press (2) on the boiler control and modify the value by pressing and . To select the curve, see chart
2. (The example in chart 2 refers to curve Kt=15).
Increase the displayed value if the required ambient temperature is not reached inside the room.
b) with qaa73 climate adjuster:
The climate curve “kt” must be chose by setting parameter 70 “HC1 gradient” of the QAA73 climate controller as described in chapter
15.2 “QAA73: parameters set by the fitter (service)”.
See graph 3 to select a curve for a room temperature of 20°C.
The curve is automatically transferred depending on the room temperature set on the QAA73 climate controller.
For zone systems, the climate curve “kt”, relative to the part of the system not controlled by the QAA73, must be chosen by setting para-
meter H532 as described in chapter 17 “setting the boiler parameters”.
IMpORtant:
For zone systems, parameter 80 “HC2 gradient”, set on the QAA73 climate controller, must be set to —.- inactive
(see chapter 15.2).
Chart 1 Chart
tM = Delivery temperature
Te = Compounded external temperature
Sth = Kt curve
Chart 3
tM = Delivery temperature
Te = Compounded external temperature
0510_2803
0510_2804
tM
(°C)
tM
(°C)
te (°C) te (°C)
tM
(°C)
te (°C)