2
5
• HRV • VKM-GA(M)V1
• HRV
•
Heat Reclaim Ventilation
160
Installation Examples
5.7.2
Mechanism of Energy Saving
Note :
The total heating / cooling load may vary depending on the climate or the other environmental conditions.
Direct duct connection system
Independent duct system
(HC0007)
(HC0008)
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.
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)
By setting to automatic
Approx. 6% reduction
of heating / cooling load
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
Total
26% reduction
of heating / cooling
load
0%
20%
26%
Interlocked
operation
Reduction of
heating / cooling
load (%)
HRV independent
operation
Normal
operation
(HC0233)
Содержание VAM-FA8VE
Страница 1: ...EEDEN07 201 technical data heat reclaim ventilation VAM FA8VE VKM GAMV1 VKM GAV1 ...
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Страница 272: ...2 11 270 HRV VKM GA M V1 HRV Heat Reclaim Ventilation Length Flow rate ...
Страница 275: ...2 11 HRV VKM GA M V1 HRV Heat Reclaim Ventilation 273 Temperature conversion table ...
Страница 279: ...2 11 HRV VKM GA M V1 HRV Heat Reclaim Ventilation 277 R 410A Saturation pressure gauge pressure chart ...
Страница 281: ...2 11 HRV VKM GA M V1 HRV Heat Reclaim Ventilation 279 Pressure enthalpy curves of HFC32 125 50 50 wt Z0169 R 410A ...