COMPACT WALL SUBSTATIONS

Models "Fondo" and "Fondo Combi"

From 10 to 180 kW

10 to 150 kW heating and max 180 kW DHW.
Combi version: heating + DHW.
With heat meter, control and security devices.
PN 25 on primary circuit.
For hot and superheated water networks.
For heating and DHW.
User customizable.
CE / PED Certification.
Small size.
Easy maintenance.
Ready for remote metering and remote control.
Flow rate, power and return temperature limitation.
Temperature management for fixed-point or external temperature compensated.

Our models

Hot Water , Heating

Pos.

Model

Power
(kW)

DN 1°
(in/out)

DN 2°
(in/out)

PN 1°
(bar)

PN 2°
(bar)

Tmax 1°
(°C)

Tmax 2°
(°C)

Dimensions
(mm)

Weight
(kg)

68

FONDO 30 C

30.00

1”

1½”

25.00

10.00

110

95

750x930x260

50

69

FONDO 60 C

60.00

1”

1½”

25.00

10.00

110

95

750x930x260

55

70

FONDO 90 C

90.00

1”

1½”

25.00

10.00

110

95

750x930x260

60

71

FONDO 120 C

120.00

1”

1½”

25.00

10.00

110

95

750x930x260

65

Pos.

Model

Power
(kW)

DN 1°
(in/out)

DN 2°
(in/out)

PN 1°
(bar)

PN 2°
(bar)

Tmax 1°
(°C)

Tmax 2°
(°C)

Dimensions
(mm)

Weight
(kg)

72

FONDO 30 C ACS D

0.00

1”

1½”

25.00

10.00

110

95

750x930x260

45

73

FONDO 60 C ACS D

0.00

1”

1½”

25.00

10.00

110

95

750x930x260

50

74

FONDO 90 C ACS D

0.00

1”

1½”

25.00

10.00

110

95

750x930x260

55

75

FONDO 120 C ACS D

0.00

1”

1½”

25.00

10.00

110

95

750x930x260

60

Pos.

Model

Power
(kW)

DN 1°
(in/out)

DN 2°
(in/out)

PN 1°
(bar)

PN 2°
(bar)

Tmax 1°
(°C)

Tmax 2°
(°C)

Dimensions
(mm)

Weight
(kg)

76

FONDO 30 C ACS I

0.00

1”

1½”

25.00

10.00

110

95

750x930x260

50

77

FONDO 60 C ACS I

0.00

1”

1½”

25.00

10.00

110

95

750x930x260

55

78

FONDO 90 C ACS I

0.00

1”

1½”

25.00

10.00

110

95

750x930x260

60

79

FONDO 120 C ACS I

0.00

1”

1½”

25.00

10.00

110

95

750x930x260

65

Pos.

Model

Power
(kW)

DN 1°
(in/out)

DN 2°
(in/out)

PN 1°
(bar)

PN 2°
(bar)

Tmax 1°
(°C)

Tmax 2°
(°C)

Dimensions
(mm)

Weight
(kg)

80

FONDO COMBI 30 C

30.00

1”

1½”

25.00

10.00

110

95

750x930x260

65

81

FONDO COMBI 60 C

60.00

1”

1½”

25.00

10.00

110

95

750x930x260

70

82

FONDO COMBI 90 C

90.00

1”

1½”

25.00

10.00

110

95

750x930x260

75

83

FONDO COMBI 120 C

120.00

1”

1½”

25.00

10.00

110

95

750x930x260

80

Pos.

Model

Power
(kW)

DN 1°
(in/out)

DN 2°
(in/out)

PN 1°
(bar)

PN 2°
(bar)

Tmax 1°
(°C)

Tmax 2°
(°C)

Dimensions
(mm)

Weight
(kg)

84

FONDO 30 S

30.00

1”

1½”

25.00

10.00

130

95

750x930x260

50

85

FONDO 60 S

60.00

1”

1½”

25.00

10.00

130

95

750x930x260

55

86

FONDO 90 S

90.00

1”

1½”

25.00

10.00

130

95

750x930x260

60

87

FONDO 120 S

120.00

1”

1½”

25.00

10.00

130

95

750x930x260

65

88

FONDO 150 S

150.00

1”

1½”

25.00

10.00

130

95

750x930x260

70

Pos.

Model

Power
(kW)

DN 1°
(in/out)

DN 2°
(in/out)

PN 1°
(bar)

PN 2°
(bar)

Tmax 1°
(°C)

Tmax 2°
(°C)

Dimensions
(mm)

Weight
(kg)

89

FONDO 30 S ACS D

0.00

1”

1½”

25.00

10.00

130

95

750x930x260

45

90

FONDO 60 S ACS D

0.00

1”

1½”

25.00

10.00

130

95

750x930x260

50

91

FONDO 90 S ACS D

0.00

1”

1½”

25.00

10.00

130

95

750x930x260

55

92

FONDO 120 S ACS D

0.00

1”

1½”

25.00

10.00

130

95

750x930x260

60

93

FONDO 150 S ACS D

0.00

1”

1½”

25.00

10.00

130

95

750x930x260

65

94

FONDO 180 S ACS D

0.00

1”

1½”

25.00

10.00

130

95

750x930x260

70

95

FONDO 30 S ACS I

0.00

1”

1½”

25.00

10.00

130

95

750x930x260

50

96

FONDO 60 S ACS I

0.00

1”

1½”

25.00

10.00

130

95

750x930x260

55

97

FONDO 90 S ACS I

0.00

1”

1½”

25.00

10.00

130

95

750x930x260

60

98

FONDO 120 S ACS I

0.00

1”

1½”

25.00

10.00

130

95

750x930x260

65

99

FONDO 150 S ACS I

0.00

1”

1½”

25.00

10.00

130

95

750x930x260

70

Pos.

Model

Power
(kW)

DN 1°
(in/out)

DN 2°
(in/out)

PN 1°
(bar)

PN 2°
(bar)

Tmax 1°
(°C)

Tmax 2°
(°C)

Dimensions
(mm)

Weight
(kg)

100

FONDO COMBI 30 S

30.00

1”

1½”

25.00

10.00

130

95

750x930x260

65

101

FONDO COMBI 60 S

60.00

1”

1½”

25.00

10.00

130

95

750x930x260

70

102

FONDO COMBI 90 S

90.00

1”

1½”

25.00

10.00

130

95

750x930x260

75

103

FONDO COMBI 120 S

120.00

1”

1½”

25.00

10.00

130

95

750x930x260

80

104

FONDO COMBI 150 S

150.00

1”

1½”

25.00

10.00

130

95

750x930x260

85

Strength

range and performancesrange and performances

  • 36 models for district heating and DHW with hot and superheated water networks.
  • Heating power 30-150 kW.
  • Direct DHW power 30-180 l/min.
  • Combi model: instantaneous DHW production 13 30 liters/min.

constructionconstruction

  • extremely compact, easy to fix on the wall.
  • Very sturdy structure, AISI 316 inox pipe 2 times TIG welded.
  • powder coating steel frame.
  • High energy efficiency thanks to complete thermal insulation.
  • Removable front cover for easy maintenance, with the possibility to apply a security unified lock/sealing.
  • Mechanical design temperature: 135°C.
  • Mechanical design pressure on primary circuit PN25.
  • Mechanical design pressure on secondary circuit PN10.
  • Nominal thermal conditions on primary circuit: 90/65°C (hot water network).
  • Nominal thermal conditions on primary circuit: 115/65°C (superheated water network).
  • Nominal thermal conditions on DHW circuit: 10/45°C
  • Valve on the primary circuit already mounted on substation.
  • Safety pressure switch.
  • Block thermostat with manual reset.
  • Regulating thermostat with automatic reset.
  • Ultrasonic heat meter complies with the legislation EN1434/MID.
  • Possibility to apply a booster pump or a pump system.
  • CE/PED approved through ISPESL with redundancy of safety in addition to those required by the rules.
  • Amarc DHS components supplier: ALFA LAVAL (heat exchangers) | SIEMENS (heat meters, regulation valves, actuators) | KAMSTRUP (heat meters) | KSB (valves and check valves) | NAVAL OY (ball valves) | IVR (shut-off valves) | CALEFFI (security valve) | SAMSON (self-operated valves) | SALMSON (pumps) | HONEYWELL (actuators, 2-3 port valve)

managementmanagement

  • Heating water temperature and DHW setting through PID regulator.
  • Remote control thermostat, 30m remotable with integrated temperature probe.
  • Ready for remote metering and remote control via Meter-bus protocol or other unified protocol. 
  • Specific software for remote metering and remote control, easy to manage. Integration on the existing SCADA (Supervisory Control And Data Acquisition) systems or higher.
  • Flow rate limit, contemporary power and temperature limit.
  • Heating temperature compensation function according to external temperature.

special functions and servicesspecial functions and services

  • germ-free (anti-legionella DHW system).
  • Anti-limestone system.

Working condition

HOT WATER SUPERHEATED WATER DIRECT H.D.W. INDIRECT H.D.W.
THERMAL DESIGN
PRIMARY CIRCUIT
90/65°C 115/65°C 85/55°C 85/55°C
THERMAL DESIGN
SECONDARY CIRCUITT
60/75°C 60/75°C 25/50°C 30/55°C
PRESSURE DROP (Δp) @ NOMINAL CONDITIONS - CIRCUITS 1 & 2 < 10 w.c.m. (1°)
< 3 w.c.m. (2°)
< 10 w.c.m. (1°)
< 3 w.c.m. (2°)
< 10 w.c.m. (1°)
< 3 w.c.m. (2°)
< 10 w.c.m. (1°)
< 3 w.c.m.. (2°)
MECHANICAL DESIGN
CIRCUITS 1 & 2
PN25 (1°)
PN16/PN10 (2°)
PN25 (1°)
PN10 (2°)
THERMAL OVERSIZING 20%
CERTIFICATION DESIGN CE/PED - ISPESL
ΔP EMERGENCY CLOSEDOWN
REGULATION VALVE
25 barg
OPTIMIZATIONS FLOW RATE LIMITATION, REMOTE SIMULTANEOUS TEMPERATURE AND POWER SETTING
HOT WATER SUPERHEATED WATER INSTANTANEOUS H.D.W.
THERMAL DESIGN
PRIMARY CIRCUIT
90/65°C 115/65°C -
THERMAL DESIGN
PRIMARY CIRCUIT
60/75°C 60/75°C 10/45°C (H.D.W. circuit)
PRESSURE DROP (Δp) @ NOMINAL CONDITIONS - CIRCUITS 1 & 2 < 10 w.c.m. (1°)
< 3 w.c.m. (2°)
< 10 w.c.m. (1°)
< 3 w.c.m. (2°)
< 10 w.c.m. (H.D.W. circuit)
MECHANICAL DESIGN
CIRCUITS 1 & 2
PN25 (1°) - PN16/PN10 (2°) - PN 10 (H.D.W. circuit) 135°C (1°) - 95°C (2°) - 60°C (instantaneous H.D.W. circuit)
THERMAL OVERSIZING 20%
CERTIFICATION DESIGN CE/PED - ISPESL
ΔP EMERGENCY CLOSEDOWN
REGULATION VALVE
25 barg
OPTIMIZATIONS FLOW RATE LIMITATION, REMOTE SIMULTANEOUS TEMPERATURE AND POWER SETTING