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ELECTRICAL WIRING
SW2 (Rotary switch 10 positions):
Electrical Heater outdoor temperature maximum
SW2 (Default)
SW2
0
1
2
3
4
5
6
7
8
9
NOTE:
Adjustments to be made only for modes with auxiliary
electrical heater.
When outdoor temperature conditions are extreme the
system can be helped by activation the electrical heater
Conditions for activation of electrical heater:
1. "Thermo ON" condition for more than 10 minutes.
2. Electric heater switch is ON
3. Outdoor temperature is less than SW1
4. Water outlet temperature is less than water outlet target
by water rule (SW3)
SW3 (Rotary switch 10 positions):
Water Rule setting
The water control is based on a "water rule". The water
temperature target is determined by a straight line depending
on the outdoor temperature (Text). The control PCB will offer
the possibility of getting access to 10 slopes values describer
below:
SW3 (Default)
SW3
0
1
2
3
4
5
6
7
8
9
The water rule chart:
Ambient temperature (WB)
SW4 (Rotary switch 10 positions):
Cooling mode outlet temperature setting.
PMML138A_R1-eng-fre.indb 42
Outdoor temperature (ºC)
-16
-14
-12
-10
-8
-6
-4
-2
0
2
Water Rule
0.4
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.5
1,5
0,4
SW4 (Default)
SW4
0
1
2
3
4
5
6
7
8
9
SW5 (DIP SWITCH):
Options setting:
SW5
SW5.1
(Default)
SW6 (Rotary switch 10 positions):
Domestic Hot Water Tank target temperature setting
SW6 (Default)
SW6
0
1
2
3
4
5
6
7
8
9
NOTE:
Condition to be activate:
DHWT controls enabled (by DHWT switch ON( SW13), and
DHWT Contact ON (Terminals 8/9)
PMML0138A-rev.1 - 11/2009
Cool outlet temperature (ºC)
7
8
9
10
17
18
19
20
21
22
Description
Radiators or fan coils application
= SW1 is used to set the minimum
temperature, and maximum
temperature is fixed by outdoor
temperature
Floor heating application = SW1
is used to set the maximum
temperature, and minimum
temperature is fixed at 25ºC.
Floor screed drying function OFF
(only heating mode)
Floor screed drying function ON
(only heating mode)
Emergy operation heater OFF
Emergy operation heater ON
Boiler combination and electrical
tariff options unavailable (OFF)
Boiler combination and electrical
tariff options available (ON)
Target temperature (ºC)
40
43
46
49
52
55
58
61
64
67
42
19/11/2009 14:46:07
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