Mitsubishi Electric Y Series Manual page 227

Stable Heating Capacity Even at Low Temperatures
40
Operable as low
as -25°C
20
15
-30 -25 -10 -3
Outdoor Temp. [ºCDB]
QAHV System Schematic Image
1
Remote Controller (optional)
QAHV
2
Mitsubishi Electric Patented Twisted and Spiral Gas Cooler
Twisted water pipe with the refrigerant pipe
spiralled around it
Cut section detail
Full heating capacity
even at -3°C
0 30
Hermetic
Storage Tank
R e p r e s e n t a t i v e
Water Temp. Sensor
(optional)
Using twist pipes as water pipes and running the refrigerant pipes along their grooves helps to increase the heat-conductive area,
allowing for better heat transfer.
HOT
COLD
Illustration showing water flow and water temperature distribution
Air
Refrigerant
HEX
LEV
Air Side
Water Side
HEX
HEX
50
Refrigerant
HEX
Type
Inlet Water
Mains
Water
HOT WATER HEAT PUMPS
Highly efficient
inverter-driven
CO scroll
2
compressor
Water Outlet
COMP .
Oil HEX
Water Inlet
Flash Injection Circuit
Outlet Hot Water Piping
Inlet Water Piping
Control Wiring
227
LEV