HIU ULTRA COMPACT SINGLE DWELLING UNIT USER SATELLITES

HIU Models "Sat" | "Sat Midi"

From 15 to 35 kW

18 to 35 kW.
Versions: base, plus, in-wall and design.
With heat meter, control and security devices.
District heating substation downstream mount.
PN 10 on primary circuit. Individual accounting and instantaneous DHW supply.
Operator panel with chronothermostat function.
Simplified and economic versions.
Small size.

Our models

Hot Water , Heating and DHW-direct
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)
1	SAT 18	18.00	¾”	¾”	10.00	6.00	110	95	500x600x150	25
2	SAT 28	28.00	¾”	¾”	10.00	6.00	110	95	500x600x150	25
3	SAT 35	35.00	¾”	¾”	10.00	6.00	110	95	500x600x150	25
4	SAT MIDI 18	18.00	¾”	¾”	10.00	10.00	110	95	500x600x150	25
5	SAT MIDI 28	28.00	¾”	¾”	10.00	10.00	110	95	500x600x150	25
6	SAT MIDI 35	35.00	¾”	¾”	10.00	10.00	110	95	500x600x150	25

Strength

range and performances

6 models for district heating and D.H.W. with hot water network and individual meter.
Heating 18-35 kW.
D.H.W. 13-22 l/min.
Large capacity instantaneous domestic hot water also with 55°C water in primary circuit (low summer and night dissipation setting).

construction

extremely compact dimensions: width 500mm, height 600, depth 150 mm. Removable front cover for easy maintenance, with the possibility to apply a security lock/sealing.
N° 3 filters with inox AISI 316 net.
Very sturdy structure, no plastic components.
High performance pump: 4 w.c.m. 1,8 m 3/h at 3rd speed.
powder coating steel frame.
4 versions: base, in-wall, plus and design.
Economic version: SAT MIDI.
Nominal thermal conditions on primary circuit: 80/55°C.
Nominal thermal conditions on secondary circuit: 80/55°C.
Nominal thermal conditions on instantaneous DHW circuit: 10/45°C.
Mechanical design temperature: 95°C.
Mechanical design pressure on primary/secondary circuits PN10/PN10.
Ultrasonic heat meter complies with the legislation EN1434/MID.
Internal circuit power: 24V AC.
ICE/PED approved through ISPESL with safety redundancy in addition to those required by legislation.
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 on existing SCADA (Supervisory Control And Data Acquisition) systems or higher.
Volumetric cold water meter and possibility to interface with SCADA system via Meter-bus protocol.

special functions and services

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

Common schematic

DISTRICT HEATING SYSTEM OF APARTMENT BUILDING WITH USER SATELLITES UNIT

Working condition

	SAT	SATMIDI
CIRCUITS 1/2/ INSTANTANEOUS H.D.W. MECHANICAL DESIGN	PN 10/10/10 95/95/65 °C	PN 10/10/10 95/95/65 °C
PRIMARY CIRCUIT THERMAL DESIGN	80/55 °C	80/55 °C
SECONDARY CIRCUIT THERMAL DESIGN	75/55 °C	75/55 °C
PROGETTO TERMICO CIRCUITO ACS H.D.W.	10/45 °C	10/45 °C
H.D.W. SUPPLY @NOMINAL CONDITIONS	13 ÷ 22 lt/min	13 ÷ 22 lt/min
PRIMARY CIRCUIT H.D.W. SUPPLY WITH WATER STORE UP @ 55°C	11 lt/min	11 lt/min
FUNCTIONAL PUMP HYDRAULIC HEAD	2.5 ÷ 4.5 w.c.m.	2.5 ÷ 4.5 w.c.m.
PRIMARY CIRCUIT PRESSURE DROP	2.5 w.c.m.	2.5 w.c.m.
CONSUMPTION REMOTE METERING	YES	NO
REMOTE CONTROL AND MANAGEMENT	YES	NO
HEATING CIRCUIT TEMPERATURE CONTROL	YES	NO
H.D.W. TEMPERATURE CONTROL	YES	YES