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9

Operating principle

The 1522 series regulator automatically manages a system composed of a solid fuel generator, gas integration boiler (for heating and domestic

hot water), inertial water storage in parallel on the heating system and instantaneous domestic hot water production by means of a plate heat

exchanger.

When the minimum working temperature of the solid fuel generator has been reached (as detected by probe S1), the regulator starts pump P1,

diverts valve V1 to connect the heat exchanger to the system and starts pump P2. With the solid fuel generator off or not yet at working

temperature, the regulator starts the integration boiler by means of contact C, stopping pumps P1 and P2 and diverting diverter valve V1 to the

boiler.

In the case of solid fuel generator overtemperature, the regulator sends the flow rate of the secondary circuit either to the system (in the

presence of room thermostat demand) or to an optional dissipation system, if present.

When a domestic user tap is opened, on a signal from flow switch F, the regulator operates priority valve V3 to produce instantaneous hot water

with the solid fuel generator only if the latter is already at working temperature. Probe S3 reads the water temperature at the domestic heat

exchanger outlet and, if necessary, the regulator integrates the domestic hot water by supplying it to the gas boiler by means of a diverter valve

(not supplied in the pack, e.g. SOLARINCAL kit code 265359).

The inertial water storage in parallel is managed in accordance with the logic described on page 6. By means of diverter valve V5 (not supplied

in the pack, e.g.: Caleffi 6443..3BY  relay box code F29525) the regulator manages all phases of  loading and unloading of the water

storage, which is kept closed only if the gas boiler has been activated. Connection of the parallel water storage to the rest of the system is

managed by the regulator by comparing the temperature readings of probes S1 (located on the solid fuel generator flow pipe), S5 (located on

the heat exchanger return line) and S4 (located on the parallel water storage). For probe S5 it is advisable to use the following working set-

points: 45°C for radiator systems, 30°C for radiant panel systems. The gas boiler starts when the solid fuel generator temperature is below the

minimum working temperature TSG (measured by probe S1) and the heat exchanger return temperature TR (measured by probe S5) is 5°C

below the value set on the regulator (TR set, fixed hysteresis value 5K).

-

+

Optimiser 

V5

V4

M

M

D

K

S1

K

S1

D

D

T

P1

V3

P2

C

V1

F

S3

RT

D

SOLARINCAL

M

D

S5

S5

S4

K

C

V4

SOLAR
INCAL

P1 P2

V1

V3

RT

S3

F

S1

V5

F29525

S4

 

 

Regulator 152200

V5=Zone valve 6443..3BY

Com.

Relè 1 VA

        8 VA

L

N

N

10

Wiring diagram of F29525

relay box - 230 V ˜ 50 Hz 

 

 

 

   

          

   

          

 

 

 

     

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

     

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Domestic
water
system

DHW

Optional
dissipator

Heating

system

Open vessel

Closed vessel

Wiring diagram

L  Live

L’  Live jumper

1  ON pump P1

2  ON pump P2

N Neutral common

3’ Gas generator C

3 Gas generator C

5

NO

ON diverter valve V3 

for domestic priority

5

NC

ON diverter valve V3 

to heating system

6’ Solid fuel generator K
6 Solid fuel generator K

N Neutral common
7 SOLARINCAL with flow 

to user

8 SOLARINCAL with flow 

to domestic integration

10 ON valve V5 to load the 

parallel water storage

y1  Probe S1

y2  Probe S1

y4  Probe S5

y5  Probe S5 and

S4 common

y6  Probe S4

y8 ON flow switch F

y9 ON flow switch F

x2 Room thermostat 

RT contact

x3 Room thermostat 

RT contact

x4 Probe S3 on domestic 

exchanger outlet

x5 Probe S3 on domestic 

exchanger outlet

wiring to be made

N  Neutral

4 ON diverter valve V1

9 On diverter valve V4

SOLID FUEL

GENERATOR

INERTIAL

WATER

STORAGE

IN PARALLEL

HEATING

BOILER

SOLID FUEL

GENERATOR

 

   

 

   

     

 

 

 

 

 

 

   

 

   

     

 

 

V5

D

V5

D

ON

1 2 3 4

Program 6 (software code PR85)

Heating, instantaneous domestic hot water + management of inertial water storage in parallel on the
heating system. 

Number of probes utilised: 4

Probe S1 located on solid fuel generator flow

Probe S3 (not supplied in the pack) located on domestic heat exchanger outlet

Probe S5 located on heat exchanger inlet on secondary side of circuit

Probe S4 located on the inertial water storage in parallel on the heating system

Содержание BIOMASS OPTIMISER 1522 Series

Страница 1: ...m according to the heating circuit needs Depending on the type and quantity of installed probes the regulator supports the following system solutions heating production of domestic hot water by means...

Страница 2: ...acilitate any system checks to be performed When the solid fuel generator is equipped with an anti condensation valve it is good practice to set the minimum working temperature of the solid fuel gener...

Страница 3: ...20 1078 95 1366 25 1097 100 1385 30 1117 105 1404 35 1136 110 1423 40 1155 115 1442 45 1175 120 1461 50 1194 140 1536 55 1213 160 1611 60 1232 170 C 20 18 16 14 12 10 8 6 4 14616 13211 11958 10839 98...

Страница 4: ...is equipped with a solid fuel generator overtemperature monitoring function When the user settable emergency temperature is reached on the solid fuel generator the regulator generates an alarm signal...

Страница 5: ...eating management of inertial water storage in parallel on the heating system S1 S4 S5 PR83 7 5 Heating and domestic hot water with storage management of inertial water storage in parallel on the heat...

Страница 6: ...ed heat energy is thus drawn from the parallel water storage Phase 4 gas boiler activation Only when the solid fuel generator is not operating and the parallel water storage has no energy reserve it i...

Страница 7: ...s S1 located on the solid fuel generator flow pipe S5 located on the heat exchanger return line and S4 located on the parallel water storage For probe S5 it is advisable to use the following working s...

Страница 8: ...ure readings of probes S1 located on the solid fuel generator flow pipe S5 located on the heat exchanger return line and S4 located on the parallel water storage For probe S5 it is advisable to use th...

Страница 9: ...olid fuel generator flow pipe S5 located on the heat exchanger return line and S4 located on the parallel water storage For probe S5 it is advisable to use the following working set points 45 C for ra...

Страница 10: ...Sol1 on the solar collector and probe Sol2 on the lower section of the tank in tank water storage if higher than the set value solar circuit pump Psol is started Pump Psol continues to run for a selec...

Страница 11: ...rature difference T is checked between probe Sol1 on the solar collector and probe Sol2 on the lower section of the domestic water storage if higher than the set value solar circuit pump Psol is start...

Страница 12: ...the solar collector and probe Sol2 on the lower section of the direct inertial water storage if higher than the set value solar circuit pump Psol is started Pump Psol continues to run for a selectabl...

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