93
EN
5.13 Systems that can be controlled
Sime
ALU HE
boilers can control many types of systems. Here are
some system diagrams, by way of example, in which the boiler
can be a single appliance or a group of cascading boilers which
can considered as a single appliance in terms of heat output,
where
Cascade output = Boiler output x no. of boilers installed
.
m
CAUTION
When systems using
ALU HE
single or cascade boilers
are managed by MODBUS systems,
Sime
kits CANNOT
be used to manage mixed circuits or the solar circuit.
You MUST use external devices.
5.13.1 Main hydraulic diagrams
Full hydraulic diagram
SE
TA
PB
PS
E
U
BR
SB
S1
S2
Solar kit code 8092277
P MIX 2
Ts
2
VMIX 2
Mix 2 Zone kit code 8092276
Smz2
P MIX 1
Ts
1
Smz1
VMIX 1
Mix 1 Zone kit code 8092275
TZ1
P1
RL1
M
R
SP
Pc
p
NC
GS
It
al
y onl
y
Vsic
KEY:
SE
External sensor
TA
Air thermostat for boiler
activation
M
Boiler delivery
R
Boiler return
SP
Plate heat exchanger
(recommended)
MCP
Primary circuit pump
NC
Condensate neutraliser
TZ1
Zone ambient thermostat
RL1
Zone relays
P1
Direct zone pump
GS
INAIL safety unit (Italy only)
Mix 1 Zone pump
(only for installations with a SINGLE boiler)
VMIX 1
MIX 1 system mixer valve
PMIX 1
MIX 1 system pump
Ts1
MIX 1 system safety
thermostat
Smz1
Zone 1 delivery probe
Mix 2 Zone pump
(only for installations with a SINGLE boiler)
VMIX 2
MIX 2 system mixer valve
PMIX 2
MIX 2 system pump
Ts2
MIX 2 system safety
thermostat
Smz2
Zone 2 delivery probe
PB
Storage tank pump
BR
DHW cylinder
SB
Hot water tank sensor
U
Domestic hot water output
E
Domestic hot water inlet
Solar kit
S1
Solar delivery probe
S 2
Solar exchanger probe (tank)
PS
Solar pump
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