AERMEC HMG - Examples of Possible Plant Solutions; Hmg - Single Unit

36
EXAMPLES OF POSSIBLE PLANT SOLUTIONS
1
13
4
4
3
3 3
5
5
3
3
3
17
12
14
15
16
3
3
19
19
8
11
66
5
3
3
3
39
9
8
8
7
10
3
18
2
3
3
5
fancoil
HMG
ATTENZIONE
Tutte le unità di questa serie sono
progettate per essere installate
esclusivamente all'esterno.
WARNING
All the units in this series
are designed to be installed outdoors only.
OTHER COMPONENTS USED IN THE INSTALLATION EXAMPLE
2
Intermediate exchanger
3
Shut-o valve
5
Manometer
6
Anti-vibration joints
7
Water lter
mandatory lter installation, under penalty of
forfeiture of the guarantee
8
Water pump
9
Unidirectional valve
10
Water lter
12
Air bleed valve
must be installed outdoors, in a well-ventilated
place
14
Expansion vessel
15
Safety valve
16
Loading group
17
Accumulation
18
Auxiliary electrical resistance
19
Drain tap
ATTENTION
In particular, the unit is intended to be connected to a
hydronic system which must be designed to be classified
according to EN 378-1 as an indirect closed ventilated
system (ref EN 378-1; 2016, par.5.5.2.3: Indirect vented
closed system ), or as a double indirect system accord
-
ing to EN 378-1 (ref. EN 378-1; 2016, par. 5.5.2.4: Double
indirect system).
ATTENTION
It is forbidden to operate the unit without the water filter
installed and cleaned.
HMG  SINGLE UNIT
COMPONENTS SUPPLIED AS STANDARD
1
Shell and tube exchanger
4
Water temperature probe
11 Drain tap
13 Flow switch
CHARACTERISTICS OF WATER
SYSTEM: HEAT PUMP WITH TUBE BUNDLE EXCHANGER
Elements Loading water Make-up water
pH (25 °C) 6,8 ~ 8,0 6,8 ~ 8,0
Electrical conductivity (25 °C) < 400 S/cm < 300 S/cm
Chlorine ions (Cl-) < 50 mg/L < 50 mg/L
Sulphate ions (SO
4
) < 50 mg/L < 50 mg/L
Alkalinity (CaCO
3
) < 50 mg/L < 50 mg/L
Total hardness (CaCO
3
limestone) < 70 mg/L < 70 mg/L
Iron (Fe) < 0,1 mg/L < 0,3 mg/L
Sulfide ion (S
2-
) no no
Ammoio (count NH
4
+
) < 0,1 mg/L < 0,3 mg/L
Silica (SiO
2
) < 30 mg/L < 30 mg/L