System manager operating instructions
15
18
19
18
19
14
15
14
15
14
15
16
17
35
33
34
18
19
20
21
22
23
21.0
20
Se
rv
iz
io
D
at
a/
O
ra
/V
ac
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Vi
su
al
In
f.
U
te
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Pr
og
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em
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al
da
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irc
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sc
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So
la
re
/M
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irc
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sc
. I
I
°C
OK
1
2
1
2
>1s
+
°C
°C
°C
BUS ID
1/2/11/Mod
Run
2
1
Main switch
This switch connects and disconnects power to the boiler:
- With the switch at
0
, the boiler is not powered
electrically (green indicator light off).
- With the switch at
I
, the boiler is powered electrically
(green indicator light on) and is set up for the
production of hot water for heating.
Burner switch
This switch connects and disconnects power to the burner:
- With the switch at
0
, the burner is not powered
electrically.
- With the switch at
I
, the burner is powered electrically
and is set up to run at request of the heating controller.
6.4 - DUAL-STAGE MASTER PANEL BOARD code 38778 (with single boiler)
14 Main switch with indicator light
16 General fuse
18 Burner switch
19 P1 system pump switch (cascade)
20 Pz1 direct zone system pump switch
21 Pz2 mixed zone system pump switch
33 Working thermostat
35 Safety thermostat
V
I
V
I
V
I
O
V I
O
Summary of Contents for PANEL BOARD MODULATING MASTER
Page 27: ...Remarks...
