Daikin FXSQ125PVE4 [7/102] By adding suction gas piping and a bs unit

Daikin FXSQ63PVE4 [7/102] By adding suction gas piping and a bs unit
09 10
Modern office buildings are highly airtight and subject to an increasing heat load due to the use of computers, lighting equipment
and other office equipment. In these buildings some rooms may require artificial cooling even in winter, depending on the
amount of sunshine received and the number of people in the room. In order to meet such requirements the Heat Recovery
Series enables the simultaneous operation of cooling and heating by controlling the BS unit that switches cooling and heating.
This series also substantially improves energy efficiency by recycling waste heat.
Offers simultaneous cooling and
heating operation on the same floor!
What is Heat Recovery Air Conditioner?
Operation mode
Heat recovery operation mode
BS unit (Individual type/Centralised type)
By adding suction gas piping and a BS unit (sold
separately), simultaneous cooling and heating
operation can be provided by a single system.
Maximum comfort via simultan eous cooling and heating
Heat Recovery
Note: Operation modes (A) and (E) are applicable when the outdoor temperature is 35°C and 7°C respectively; The other modes are applicable under typical outdoor conditions.
(A)
Heat radiation operation
(all cooling operation)
Heat
radiation
cooling cooling cooling cooling
(B)
Heat radiation tendency
heat recovery operation
(mainly cooling,
part heating operation)
Heat radiation
cooling cooling cooling heating
(D)
Heat absorption tendency
heat recovery operation
(mainly heating,
part cooling operation)
(C)
Heat recovery operation
(cooling and heating operation)
(E)
Heat absorption operation
(all heating operation)
cooling cooling heating heating
heating heatingcooling heating
Heat absorption
heating heatingheatingheating
28 kW
7 kW 7 kW 7 kW 7 kW
Outdoor
unit
Indoor unit
No.1
No.2
Individual
BS unit
No.3
No.4
Heat Recovery
8 class-60 class
(22.4 kW) (168 kW)
Heating operation for
rooms not significantly
heated by sun
Cooling operation
for rooms
significantly heated
by sun
Centralised BS unit
heating cooling
corridor
heating cooling cooling
heating
Outdoor air
processing
air
conditioning
Individual BS unit
heating heating cooling
office
Individual BS unit
Winter season (Office Building)
Difference between the load of cold air
and heat from room is large
Can be use with the outdoor air
processing air conditioning
Winter season (Hotel)
Able to cater to individual heating and
cooling requirement
Individual office
Provides heating and annual cooling
depending on space area
Individual BS unit Centralised BS unit
Heat pump
Heat recovery
* For indoor units used for cooling only (do not connect to
BS unit when using for heat recovery),
total capacity index must be 50% or less than the
capacity index of the outdoor units.
Outdoor unit
Gas
piping
Liquid
piping
Indoor unit Indoor unitIndoor unit
By adding suction
gas piping and a
BS unit...
Heat recovery operation!
Outdoor unit
High and low pressure
gas piping
Suction gas piping
Liquid piping
Indoor unit
(Heating)
Indoor unit
(Cooling)
Indoor unit*
(Cooling only)
Individual
BS unit
Individual
BS unit
Increasing demand for simultaneous
cooling and heating needs
REYQ-T
VRV IV
Heat Recovery

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