HIU - COMPACT WALL SUBSTATIONS
HIU 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 |
DN 1° |
DN 2° |
PN 1° |
PN 2° |
Tmax 1° |
Tmax 2° |
Dimensions |
Weight |
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 |
|
Hot Water , DHW - Direct
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Pos. |
Model |
Power |
DN 1° |
DN 2° |
PN 1° |
PN 2° |
Tmax 1° |
Tmax 2° |
Dimensions |
Weight |
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 |
|
Hot Water , DHW - Indirect
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Pos. |
Model |
Power |
DN 1° |
DN 2° |
PN 1° |
PN 2° |
Tmax 1° |
Tmax 2° |
Dimensions |
Weight |
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 |
|
Hot Water , Heating and DHW-direct
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Pos. |
Model |
Power |
DN 1° |
DN 2° |
PN 1° |
PN 2° |
Tmax 1° |
Tmax 2° |
Dimensions |
Weight |
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 |
|
Overheated Water , Heating
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Pos. |
Model |
Power |
DN 1° |
DN 2° |
PN 1° |
PN 2° |
Tmax 1° |
Tmax 2° |
Dimensions |
Weight |
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 |
|
Overheated Water , DHW - Direct
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Pos. |
Model |
Power |
DN 1° |
DN 2° |
PN 1° |
PN 2° |
Tmax 1° |
Tmax 2° |
Dimensions |
Weight |
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 |
|
Overheated Water , Heating and DHW-direct
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Pos. |
Model |
Power |
DN 1° |
DN 2° |
PN 1° |
PN 2° |
Tmax 1° |
Tmax 2° |
Dimensions |
Weight |
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 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.
construction
- 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)
management
- 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 services
- germ-free (anti-legionella DHW system).
- Anti-limestone system.
Common schematic
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 | ||
Gallery
