
ED34-862
Features
General Information
29
1
Energy Saving
Note:
The total heating / cooling load may vary depending on the climate or the other environmental conditions.
HRV unit recovers the thermal energy during cooling / heating operation of air conditioner.
HRV reduces the cooling / heating load drastically and enhances the heating / cooling
efficiency.
Proper use of Heat recovery ventilation and normal ventilation saves energy.
When the cooling operation is required in winter, use of heat recovery ventilation is not
efficient because the outdoor air temperature is normally lower than that of the indoor.
Thus, the proper use of ventilation mode enhances the heating / cooling efficiency.
Automatic Ventilation mode changeover
Refer to the CONTROL for the mode changeover.
The load is reduced at startup of the air conditioner by the following control.
Before the working hour, the room air is clean.
Therefore, the startup of HRV can be delayed.
By heat recovery operation
Approx.
20%
reduction
of heating / cooling load
Exhaust
Air
Exhaust
Air
Outdoor
Air
Heat Exchanger Element
(Heat Recovery)
Return
Air
Supply
Air
(HC0230)
Approx.
8%
reduction
of heating / cooling load
By setting to automatic
ventilation mode
Operation
Sensor of ventilation
Decision of mode
(Which is more
energy efficient?)
Difference between
indoor / outdoor temp.
Cooling
Indoor temp. > Outdoor temp.
Indoor temp. < Outdoor temp.
Normal ventilation (Bypass)
Heat recovery ventilation
Heating
Indoor temp. > Outdoor temp.
Indoor temp. < Outdoor temp.
Heat recovery ventilation
Normal ventilation (Bypass)
Heat Recovery mode
Normal (Bypass) mode
Heat Exchanger Element
(Heat Recovery)
(HC0231)
Exhaust
Air
Outdoor
Air
Return
Air
Supply
Air
Heat Exchanger Element
(Heat Recovery)
(HC0232)
Exhaust
Air
Outdoor
Air
Return
Air
Supply
Air
Automatic
Changeover
By Precooling / heating operation
Approx.
2%
reduction
of heating / cooling load
Working hour starts
Working hour ends
8:15
9:00
18:00
ON
ON
OFF
OFF
Air
conditioner
HRV
Cooling / Heating
load is reduced
Total
30%
reduction
of heating / cooling
load
0%
20%
30%
Interlocked
operation
Reduction of
heating / cooling
load (%)
HRV independent
operation
Normal
operation
(HC0233)
Все каталоги и инструкции здесь:
http
:
//splitoff.ru/tehn-doc.html
Содержание VRV III
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