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Airwell AQH 70 [5/28] Refrigerant flow diagrams
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Page 5
Refrigerant flow diagrams
CONTROL AND SAFETY COMPONENTS
CPT Condenser pressure tapping point
DIS Discharge temperature sensor
EPT Evaporator pressure tapping point
EWT Inlet water temperature sensor
COMPONENTS
1 C1/C2 compressors
2 Condenser
3 Filter - dryer
4 Sight glass with moisture indicator
5 Expansion valve
6 Plate heat exchanger
7 Four-way reverse cycle valve
8 Liquid reservoir
9 Control valve
FH1 High pressure safety pressostat
FPC Condenser pressure transducer
FPE Evaporator pressure transducer
LWT Outlet water temperature sensor
P P P
P P
P
T
T
T
FH1
2
7
1
34
9
5
8
6
C2
C1
PED
FPC CPT DIS
FPE EPT
EWT
LWT FS
ON
Water inlet/outlet
Oil equalizer
Models 20 to 80
Cooling mode
Low pressure liquid refrigerant enters the refrigerant to water heat
exchanger and is evaporated and superheated by the heat energy
absorbed from the chilled water passing through the heat
exchanger. Low pressure vapour passes through the four way
valve before entering the compressor where pressure and
superheat are increased. The superheated refrigerant vapour again
passes through the four way valve and enters the ambient coil.
Heat is rejected via the ambient coil and fans. The fully condensed
and subcooled liquid refrigerant then enters the expansion valve
where pressure reduction and further cooling takes place before
returning to the heat exchanger.
Heating mode
Liquid refrigerant enters the ambient coil and is fully evaporated
and superheated by the energy absorbed from the ambient air.
Low pressure superheated refrigerant vapour passes through
the four way valve and enters the compressor, where pressure
and superheat are increased. High pressure superheated
refrigerant vapour again passes through the four way valve and
enters the refrigerant to water heat exchanger where heat is
rejected to the water circulating through the exchanger. The high
pressure liquid refrigerant, leaving the heat exchanger, enters the
thermostatic expansion valves where the refrigerant pressure is
reduced and subsequently cooled before returning to the ambient
coil. When ice builds up on the ambient coils defrost is initiated by
operating the machine in cooling mode.
Содержание
- Air to water reverse cycle heat pumps 1
- Aqh 20 to 130 1
- Aqu logic 1
- A maximum of technology 2
- Built to last 2
- Cabinet and structure 2
- Compressors 2
- Energy savings all year round 2
- Features and benefits 2
- General specifications 2
- Increased performance 2
- Optimized defrost 2
- Page 2 2
- Quick and easy installation at minimal cost 2
- Why choose iltc technology 2
- Accessories and options 3
- Air condenser 3
- Electrical panel 3
- Evaporator 3
- Fan motor assembly 3
- General specifications continued 3
- Integrated hydraulic module 3
- Other standard equipment 3
- Page 3 3
- Refrigerant circuit 3
- Iltc control system 4
- Iltc control system description 4
- Page 4 4
- Remote unit management 4
- Safety 4
- Cooling mode 5
- Heating mode 5
- Models 20 to 80 5
- Page 5 5
- Refrigerant flow diagrams 5
- Cooling mode 6
- Heating mode 6
- Models 90 to 130 6
- Page 6 6
- Refrigerant flow diagrams continued 6
- Operating temperature range cooling mode 7
- Operating temperature range heating mode 7
- Page 7 7
- Selection example 7
- Selection guide 7
- Altitude correction factors 8
- Chilled water inlet outlet temperature correction factors 8
- Condenser fouling factors 8
- Evaporator fouling factors 8
- Hydraulic circuit water volume 8
- Maximum volume in litres for comfort air conditioning applications 8
- Minimum volume for comfort air conditioning applications 8
- Operating limits cooling mode operating limits heating mode 8
- Selection guide continued 8
- Technical characteristics hfc 407c 9
- Technical characteristics hfc 407c continued 10
- Lp a sound pressure levels 11
- Lw a sound power levels 11
- Protection devices 11
- Technical characteristics hfc 407c continued 11
- Compressors 12
- Electrical characteristics hfc 407c 12
- Evaporator heating resistance 12
- Standard condenser fans 12
- Standard pumps 12
- Unit with hydraulic module 12
- Unit without hydraulic module 12
- Performance data in cooling mode hfc 407c 13
- Performance data in cooling mode hfc 407c continued 14
- Performance data in heating mode hfc 407c 15
- Performance data in heating mode hfc 407c continued 16
- Cooling mode heating mode 17
- Models 20 25 30 35 17
- Models 40 50 60 70 80 17
- Unit external static pressure 17
- Cooling mode heating mode 18
- Models 90 to 130 18
- Unit external static pressure continued 18
- 10 15 20 30 40 50 correction factors 1 2 1 0 0 8 0 7 0 5 0 3 0 1 water average temperature c 19
- Heat exchanger water pressure drop 19
- Models 20 25 30 35 19
- Models 40 50 60 70 80 19
- Page 19 19
- Water flow l s 19
- Heat exchanger water pressure drop continued 20
- Models 90 to 130 20
- Dimensions aqu logic aqh sizes 20 25 30 and 35 21
- Front view side view 21
- Page 21 21
- Top view 21
- Dimensions aqu logic aqh size 40 22
- Front view side view 22
- Page 22 22
- Top view 22
- Dimensions aqu logic aqh sizes 50 60 70 and 80 23
- Front view side view 23
- Page 23 23
- Top view 23
- A water inlet ø2 gas b water outlet ø2 gas c ancillary electric cables entry d power supply cables entry 24
- Dimensions aqu logic aqh size 90 24
- Front view side view 24
- Location of anti vibration mounts dimensions in mm 24
- Page 24 24
- Side view 24
- Top view 24
- A water inlet ø2 gas b water outlet ø2 gas c ancillary electric cables entry d power supply cables entry 25
- Dimensions aqu logic aqh sizes 100 110 120 and 130 25
- Front view side view 25
- Location of anti vibration mounts dimensions in mm 25
- Page 25 25
- Side view 25
- Top view 25
- Aqu logic 20 to 35 aqu logic 40 to 80 26
- Aqu logic 90 to 130 26
- Minimum clearance around the unit 26
- Page 26 26
- A c e marketing 28
- Ace klimatechnik gmbh 28
- Iber elco s a 28
- Itelco clima srl 28
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