Wall-mounted Heat Interface Unit - HIU - Caleffi · PDF fileWall-mounted Heat Interface Unit -...

Wall-mounted Heat Interface Unit - HIUInstantaneous domestic hot water productionMechanical control
Code SATK15313 ABC
Function
The SATK Heat Interface Unit (HIU) independently controls the heating and domestic hot water generation in an individual apartment within a centralised boiler or district heating system.
01219/13 GBACCREDITED
ISO 9001 No. 0003ISO 9001 FM 21654
Technical specifications
MaterialsFrame: steel plateExchanger: brazedConnection pipes: copperComponents: brass EN12165 CW617N
Connections HIU: 3/4 MWeight: 8 kg
PerformancesMedium: water, max. 30% glycolMax. medium temperature: 85CMax. pressure: - primary circuit: PN 10 bar - domestic hot water circuit: PN 10 barDomestic hot water exchanger capacity: 40 kW Domestic hot water flow rate: min 1,8 0,3 l/min Differential pressure fixed setting: 30 kPa
A570
70G
C243
L157
B
157,5
110
H
195D
3/4E
105F
A
G FE
H
D C
L
FB B B B
E E E EG
Dimensions (mm)
Characteristic components1 - DHW Differential pressure priority valve2 - Manual air vent3 - 40 kW Brazed exchanger4 - Mechanical modulating valve with manual pre-set5 - DPCV (differential pressure control valve)6 - Heat meter template spacer
The priority valve (1) gives priority to the production of domestic hot water when theres a differential of pressure on sanitary circuit.During the production of domestic hot water the modulating valve (4), with a manual preregulation on it, controls the primary flow rate according to the requested domestic hot water flow rate.Heating circuit is always on when theres no request of domestic hot water, its recommended to provide a zone or thermostatic valve with it.Heating circuit is always on when theres no request of domestic hotwater, its recommended to provide a zone or thermostatic valve with it.Before installation its recommended to carry out accurate flushing ofthe pipes of the system in order to remove any residue or impuritiesthat could endanger correct operation of the HIU. Its recommended toprovide a strainer on primary flow. If water has a hardness level higherthan 20F, a softening treatment is compulsory.
Mandata circuito primario
Ritorno circuito primario
Uscita acqua calda sanitaria
Mandata circuito riscaldamento
Ritorno circuito riscaldamento
Ingresso acqua fredda sanitaria
Product range
SATK15313 ABC HIGH temperature wall-mounted HIU instantaneous production of DHW, mechanical regulation with 30 kPa DPCV.

SATK15313 ABC Domestic hot water preregulation settings
Supply flow temperature 60CDCW inlet 10C
MAX MIN
SATK15313 ABC mechanical regulation allows to set the required domestic hot water temperature according to primary flow temperature, turning the black handle (A)
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Q (l/min)0,0 2,5 5,0 7,5 10,0 12,5 15 17,5 20,0
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MIN
DHW flow rate
DHW flow rate
DHW flow rate
DHW flow rate
DHW flow rate
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Q (l/min)0,0 2,5 5,0 7,5 10,0 12,5 15 17,5 20,0
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DHW flow rate
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DHW flow rate
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MIN
A

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Q (l/min)0,0 2,5 5,0 7,5 10,0 12,5 15 17,5 20,0
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MIN
DHW flow rate
DHW flow rate
DHW flow rate
DHW flow rate
DHW flow rate
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Q (l/min)0,0 2,5 5,0 7,5 10,0 12,5 15 17,5 20,0
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DHW flow rate
DHW flow rate
DHW flow rate
DHW flow rate
DHW flow rate
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Q (l/min)0,0 2,5 5,0 7,5 10,0 12,5 15 17,5 20,0
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DHW flow rate
DHW flow rate
DHW flow rate
DHW flow rate
DHW flow rate
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MAX
MIN
C
Q (l/min)
25,0
30,0

Wall-mounted Heat Interface Unit - HIU - Caleffi · PDF fileWall-mounted Heat Interface Unit -...

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