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Installation and Service Manual Upsilon-Series
34
3. 0-10Volt-control
At a heat demand of the 0-10 Volt controller a signal is sent out and varies from 0-10
Volt. This signal is translated by the Upsilon boiler to a set value (desired ow water
temperature or load) which is send via the data bus to the boiler(s). Depending on the
Voltage the set value becomes higher or lower.
The 0-10 Volt-controller must be connected to terminal 3, position 9 and 10.
The choice for temperature or load control can be done by a parameter setting.
Go to Setting level and Param. Chapter, than to Cascade Param. and select P101.
When P101 is adjusted to 1 the loadcontrol is set. On that moment P205 until P210 in
chapter Cascade Param. is released and can be adjusted according to specic requests.
When P101 is adjusted to 2 the temperaturecontrol is set. On that moment P215 until
P220 in chapter Cascade Param. is released and can be adjusted according to specic
requests.
See chapter 11 for the adjustment possibilities.
ADVICE:Choosefortemperaturecontrolforamorebalancedboilercontrol
Behaviourofconnectedexternalcontrols
- When using an OpenTherm or 0-10Volt control and a clock program is selected, the
clock program of the Upsilon will be ignored.
- When an on/off control is connected and the thermostat is switched on manually before
the pre-setted switch-on time, the clock programm will be ignored and will run on the
set day temperature. When swithing off manually the clock program will be followed.
0-10Volt
Open-
Therm
On/Off
T3
DHW
1 2 3 4 5 6 7 8 9 10 11 12 13 14
T10
General
purpose
LWCO
T4
Out
Figure 8.1.c
34


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A.O. Smith Upsilon UB-70 User Manual - English - 2 pages

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A.O. Smith Upsilon UB-70 Installation Guide - Dutch - 72 pages


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