HIU SINGLE DWELLING UNIT SUBSTATIONS
HIU Models "Mono" e "Mono Combi"
From 15 to 35 kW
18 to 40 kW heating and 10 to 50 kW DHW production.
Versions: base, plus, in-wall and design.
With heat meter, control and security devices.
PN 25 on primary circuit.
For hot and superheated water networks.
Automatic water load.
Operator panel with chronothermostat function.
Large capacity expansion tank.
CE / PED Certification.
Ready for remote metering and remote control.
Flow rate , power and return temperature limitation setting.
Fixed-point temperature management or external temperature compensation.
Our models
|
Hot Water , Heating
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Pos. |
Model |
Power |
DN 1° |
DN 2° |
PN 1° |
PN 2° |
Tmax 1° |
Tmax 2° |
Dimensions |
Weight |
10 |
MONO 18 C |
18.00 |
¾” |
¾” |
25.00 |
10.00 |
110 |
95 |
500x800x150 |
30 |
11 |
MONO 25 C |
25.00 |
¾” |
¾” |
25.00 |
10.00 |
110 |
95 |
500x800x150 |
30 |
12 |
MONO 30 C |
30.00 |
¾” |
¾” |
25.00 |
10.00 |
110 |
95 |
500x800x150 |
30 |
|
Hot Water , DHW - Direct
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Pos. |
Model |
Power |
DN 1° |
DN 2° |
PN 1° |
PN 2° |
Tmax 1° |
Tmax 2° |
Dimensions |
Weight |
13 |
MONO COMBI 18 C |
18.00 |
¾” |
¾” |
25.00 |
10.00 |
110 |
95 |
500x800x150 |
40 |
14 |
MONO COMBI 25 C |
25.00 |
¾” |
¾” |
25.00 |
10.00 |
110 |
95 |
500x800x150 |
40 |
15 |
MONO COMBI 30 C |
30.00 |
¾” |
¾” |
25.00 |
10.00 |
110 |
95 |
500x800x150 |
40 |
|
Overheated Water , Heating
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Pos. |
Model |
Power |
DN 1° |
DN 2° |
PN 1° |
PN 2° |
Tmax 1° |
Tmax 2° |
Dimensions |
Weight |
16 |
MONO 18 S |
18.00 |
¾” |
¾” |
25.00 |
10.00 |
130 |
95 |
500x800x150 |
30 |
17 |
MONO 28 S |
28.00 |
¾” |
¾” |
25.00 |
10.00 |
130 |
95 |
500x800x150 |
30 |
18 |
MONO 40 S |
40.00 |
¾” |
¾” |
25.00 |
10.00 |
130 |
95 |
500x800x150 |
30 |
|
Overheated Water , Heating and DHW-direct
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Pos. |
Model |
Power |
DN 1° |
DN 2° |
PN 1° |
PN 2° |
Tmax 1° |
Tmax 2° |
Dimensions |
Weight |
19 |
MONO COMBI 18 S |
18.00 |
¾” |
¾” |
25.00 |
10.00 |
130 |
95 |
500x800x150 |
40 |
20 |
MONO COMBI 28 S |
28.00 |
¾” |
¾” |
25.00 |
10.00 |
130 |
95 |
500x800x150 |
40 |
21 |
MONO COMBI 40 S |
40.00 |
¾” |
¾” |
25.00 |
10.00 |
130 |
95 |
500x800x150 |
40 |
Strength
range and performances
- 12 models for district heating and DHW for hot and superheated water networks.
- 4 versions: base, in-wall, plus and design.
- Heating 18-40 kW.
- DHW 13-22 l/min.
construction
- Extremely compact dimensions: width 500mm, height 600, depth 160 mm
- powder coating steel frame.
- Very sturdy structure, no plastic components.
- Mechanical design temperature: 135°C
- Mechanical design pressure on primary circuit: PN25
- Mechanical design pressure on secondary circuit and DHW: PN10
- Nominal temperature on primary circuit: 90/65°C
- Nominal temperature on secondary circuit: 80/60°C
- Nominal thermal conditions on DHW instantaneous circuit : 10/45°C
- High performance pump: 4 w.c.m. 1,8 m³/h.
- CE/PED approved through ISPESL with safety redundancy in addition to those required by legislation.
- Non return valve on primary circuit.
- Safety pressurestat.
- block thermostat with manual reset.
- Regulation thermostat with automatic reset.
- Large expansion tank (12 l).
- Stainless steel net filter on primary circuit, secondary and DHW.
- Ultrasonic heat meter complies with the legislation EN 1434/MID.
- DHW produced by primary circuit heat exchanger for safety reason.
- Automatic remote controlled load valve with meter and secondary circuit pressure display gauge.
- 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 setting (55÷85°) and DHW (30÷50°C) 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 with existing SCADA (Supervisory Control And Data Acquisition) systems or higher.
- 6 implemented limits: limits of flow temperature on secondary circuit, limit of return temperature on primary circuit, heating and DHW flow rate limit, heating and DHW power limit.
special functions and services
- germ-free (anti-legionella DHW system).
- Anti-limestone system.
Common schematic
Working condition
| HOT WATER | SUPERHEATED WATER | |
|---|---|---|
| THERMAL DESIGN PRIMARY CIRCUIT |
90/65°C | 115/65°C |
| THERMAL DESIGN SECONDARY CIRCUIT |
60/75°C | 60/75°C |
| PRESSURE DROP (Δp) @ NOMINAL CONDITIONS - CIRCUITS 1 & 2 | < 10 m.c.a. (1°) < 3 m.c.a. (2°) |
< 10 m.c.a. (1°) < 3 m.c.a. (2°) |
| MECHANICAL DESIGN CIRCUITS 1 & 2 |
PN25 (1°) PN16/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 | |
Gallery
