Technical Documentation
Latent & Sensible,
separate type Air Handling Unit
Sensible and latent heat separation air conditioning systems use separate air handling unit for treating latent heat and sensible heat, making it possible to provide air conditioning without installing a separate air conditioner.
Dual Coil Air Handling unit
Separating sensible and latent loads improves comfort during partial loads.
Features
- The sensible load and latent load are each handled by two coils.
Control example
- The control valve (MV1) adjusts the amount of water passing through the sensible heat treatment coil so that the return air temperature or room temperature is set.
- The control valve (MV2) adjusts the amount of water passing through the latent heat treatment coil so that the return air temperature or room temperature is set.
Psychrometric chart movement
Coil to Coil reheat type Air Handling unit
By recovering sensible heat from outside air, no heat source is required for reheating after dehumidification, improving energy efficiency.
Features
- Since outside air is used as a reheat source, no heat source is required.
- Heat is circulated between the pre-cooling coil, which pre-cools (PC) the outside air, and the reheat (RH) coil.
Control example
- Depending on the return air temperature or room temperature, the circulation pump (P1) is started to reheat.
- The control valve (MV1) adjusts the amount of water passing through the cooling coil so that the return air humidity or room humidity reaches the set value.
Psychrometric chart movement
