User`s manual

5
6
Main features Main features
An innovative and reliable system,
developed based on Daikin’s many years of
experience in multi-room air conditioners.
Air conditioners with waste heat utilisation
mproved
efficiency
5 6 7 8 9 1011121314151617
Time
3 rooms ON
2 rooms ON
Air
conditioner
3 rms
2 rms
1 rm
OFF
50 L
60°C
25°C
0 L
Hot water
supply
pattern
Water
Temp.
18 19 20 21 22 23 24 1 2 3 4
40°C
nnovative and
reliable system
Because waste heat, which is normally released as
exhaust, is now used to heat water. Thus, almost
no electricity costs are incurred to raise the water
temperature.
Example on usage of HW system
During air conditioner operation, hot air (waste heat) is emitted from the outdoor unit. Using the Super Multi HW
system, waste heat is sent to the storage water heater to heat the water inside to 60°C. This system aims to
make usage of electricity for heating water unnecessary when the air conditioner is operating.
In a standard family model of two adults and two children,
the waste heat generated by air conditioning is sufficient
to supply hot water for everybody’s showers.
HW Storage water heater
Energy efficient
Reliable and durable
Good heat insulation
Backup electric heater
Easy to install and maintain
Indoor unit
Storage water heater
Backup electric heater
HW controller
Because waste heat is used to heat water, annual electricity consumption can be reduced approximately 35%
compared with consumption for separate operation of air conditioning and an electric water heater.
Comparison between Super Multi HW, and an AC and electric heater pair
HW controller
Refrigerant flowing through
the pipe wrapped around
the hot water tank, to heat
the exterior of the tank
and the water inside
When cooling, if the temperature drops in the
storage water heater, the unit starts water
heating operations by using the waste heat.
Refrigerant flow
Outdoor unit
Water flow
3 rooms ON
ON ONOFF
21:00–7:00
7:00–21:00
Air conditioner load conditions Operation time: 15 hours/day
Family composition
2 adults
25 L 25 L
X
= 8 showers (200 L (39°C))
2 children
3 rooms
27°C
27°C
27°C
33°C
Note
Indoor air temp Outdoor air temp Condition of load Operating time
10 hours
6 hours
A/C load
3 rooms
2 rooms
Combination
2.5 + 2.5 + 3.5
2.5 + 2.5
Water-heating load
Tank capacity: 75 L
Boiling temperature: 25°C to 60°C (tap water)
Amount of hot water per person per time (standard): 25 L/shower (39°C) (water dispensed: 5 L/min.; shower time: 5 min./shower)
Amount of water required in tank to dispense 39°C hot water: 10 L/shower (60°C) + 15 L of tap water (25°C)
Amount of hot water required per day: 80 L (60°C)
Rated strage: 75 L
Hot water supply: 25 L (39°C)/one time
Water inlet: 25°C
Water heater temperature: 25°C to 60°C
AC set temperature: 24°C
No electric heater consumption
(Water heating by the use of waste heat)
Room 2 showers/person
Water supply
2,540 kWh
3,930 kWh
2.5 + 2.5 + 3.5
4MKS80ESG (R410A)
+
electric heater
Super Multi HW
Approx.
35%
reduction
1000
Annual power consumption [kWh]
2000
3000
4000
0
NEW
Generally, all air conditioners are
not in operation during the day
because parents are working.
Features
Water temperature indicator
Manual on/off for backup electric heater
Scheduler
Effect of carbon dioxide emissions
* At necessary intervals, the water is automatically heated to prevent the risk
of bacteria growth.