Rotation
function
Comp.
LEV
LEV
HEX
Air
Water inlet
Water outlet
Plate
HIC circuit
Flash Injection Circuit
Highly efficient
inverter-driven scroll
compressor
A
0
10
20
30
40
50
60
70
80
-30
-10
-20
outdoor temp. ºC DB
outlet water temp.
ºC
-20
ºC /
65
ºC
-10
ºC /
70
ºC
0
10
20
30
40
50
During defrosting, two compressors, which are
equipped within one unit, run alternately resulting
in less drop in outlet water temperature.
A "Flash Injection Circuit," which is designed for our ZUBADAN CITY MULTI air conditioning system for cold regions,
is incorporated in our new hot water heat pump. Through utilizing this advanced "Flash Injection Circuit" and the
latest high-efficiency compressor, the hot water heat pump is able to provide hot water of 70°C with the use of R407C
and with better retention of capacity at low outdoor temperatures.
Two-phase refrigerant is separated into liquid refriger-
ant and gas refrigerant at the point of A.
Liquid refrigerant, whose pressure is reduced by the
linear expansion valve (LEV), exchanges heat in the
HIC circuit and become gas-liquid two-phase refriger-
ant. This two-phase refrigerant flows into the injection
port in the compressor for controlling the increase of
the discharge temperature. Therefore the optimal
amount of refrigerant can be provided to the system
via the compressor, which makes it possible to
provide hot water of 70 ºC.
70ºC
High temperature
COP
Over 4*
Compressors
run
alternately
Depending on settings, the rotation function is available
for units.
Backup
function
Backup
operation
Highly
efficient
High performance even at low outdoor temp.
Built-in
inverter-driven
scroll compressor
Range of operation temperature
and outlet water temperature
*COP 4.13
Outdoor temp.: 7ºC DB/ 6ºC WB
Outlet water temp.: 35ºC
Flash Injection Circuit
The hot water heat pump ensures an exceptionally high level of reliability through a backup function.* If either of the
compressors malfunctions, the other compressor maintains operation to avoid a complete stop of the system.
A rotation function is also available. When two or more units are in the system, the unit runs alternately, ensuring an optimum
product lifecycle for both component units.
*If the main circuit board malfunctions,
the backup function and rotation function
are not available.
*Capacity drops by 50%.
Backup
function
Rotation
function
The hot water heat pump can be operated
at outdoor temp. between -20°C and
40°C.
It delivers precise comfort even on the
coldest days of the year.
Operable even at
-20ºC
Lower sound pressure levels have been
achieved thanks to the development of
a new fan.
*Based on theoretical calculations for a distance of
10m.
51dB
(
A
)
*
Low sound pressure level
Various system configurations are available.
· Two external output for backup heater
· Analog input to control capacity
· Defrost signal
* Refer to the Data Book for other functions.
Wide
variety of external input/output
Ducting can be connected to the inlet or outlet of the outdoor unit.
Either "60 Pa" or "0 Pa" can be selected.
* The factory setting is "0 Pa."
60Pa
External static pressure
With the CRHV model, now allowing connection of an IT terminal, the
connection to the open network is now possible.
It will allow energy monitoring for the entire building including air
conditioners and other electric appliances.
It is also possible to control the water temperature and capacity of the
CRHV model.
Support
for open network
· The system is equipped with "
Efficiency Priority Mode
" and "
Capacity
Priority Mode
." "Capacity Priority Mode" is more effective when used with a
boiler because the boiler's fuel cost and CO
2
emissions can be reduced.
Other
features
R407C
Heat Pump System
Heat Sources
G
round Source
H
eat Pump
Pumps up Heat
Source from
the ground
Heat
Heat
Heat
Heat
Tank
Heat
Heat
Heat
=
Input energy
Output energy
Heat from
ground source
Heat
Heat
+
Heat
Heat
1
2
Input
energy
Rock
►
Rock
►
◄
Surface soil
◄
Surface soil
Ground water
►
Ground water
►
◄
River, Lake
◄
River, Lake
Heat
Heat
Heat
CRHV-P600YA-HPB
230
HOT WATER HEAT PUMPS
Summary of Contents for City Multi R2 Series
Page 1: ...CM20AN E NZ VRF City Multi Product Catalogue ...
Page 101: ...BC Controllers 101 ...
Page 112: ...Indoor Units VRF 112 ...
Page 114: ...Ceiling Cassette Type 4 Way Airflow Type 114 ...
Page 122: ...Ceiling Cassette Type 2 Way Airflow Type 122 ...
Page 128: ...Ceiling Concealed Type 128 ...
Page 150: ...Wall Mounted Type 150 ...
Page 154: ...Floor Standing Type 154 ...
Page 181: ...Ventilation Systems 181 ...
Page 190: ...Remote Controllers 190 ...