32
3.12.3 - NOVAIREX BOILER SYSTEM FOR HEATING AND FOR THE PRODUCTION OF
DOMESTIC HOT WATER, WITH TANK IN TANK TYPE STORAGE TANK
Mors. 6 p. VERDE
Mors. 9 p. GRIGIO
IR
RMV
P2
S5
S4
A
B
AB
P3
J4
P2
P3
SF
S2
VE
Micr
o por
ta
TA
S5
SF
S3
S2
S4
Morsett. 7 poli colore VERDE
Morsett. 9 poli colore GRIGIO
Key:
IR
: heating system
P2
: Multipower filling pump and recirculation pump
P3
: system pump
RMV
: mixing valve (55°C)
SF
: flue gas probe
S2
: storage tank temperature sensor (low point)
S3
: storage tank temperature sensor (high point)
S4
: flow temperature sensor of the boiler
: return temperature sensor of the boiler
VE
: expansion vessel
In the following configuration pump
P2
is in operation until the
temperature detected by probe
S4
meets the value set by pa-
rameter P1. After that its function is controlled by the coun-
ter-exchange between probe
S4
and probe
S2
.
The temperature differential which controls operation of pump
P2
based on the temperatures detected by probe
S4
and by
probe
S2
is represented by the value set in parameter P9 (ad-
justable).
Pump
P2:
- is on if
S2
=
S4
- P9,
- is off if
S2
=
S4
- P9 -+ 2.
Pump P3 is on if
S3
reaches the temperature set in parameter
P5 and
TA
is in demand.
The Tank in Tank is heated until allowed by the counter-ex-
change control. With this configuration the settings of parame-
ters P5 and P6 are not complied with.
Probe
S5
allows the boiler's return temperature to be controlled.
The fan stops when probe
S4
reaches the temperature set in
parameter
P0
.
Door micros
witch
AD EXCHANGER
Содержание NOVAIREX 35
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