| Indoor Environment | Design Condition | Remark (Building Standard Law) |
|---|---|---|
| Temperature | Summer 25~27˚C Winter 20~22˚C |
17~28˚C (temperature difference between outdoor and indoor space: above 7˚C) |
| Relative Humidity | Summer 50~60˚C Winter 40~50˚C |
40~70% |
| Air Current Speed | 0.1~0.2 m/s | Less than 0.5m/s |
| Airborne Dust | - | 0.15 mg/㎥ |
| Co Concentration | - | Less than 0.01% (Less than 10ppm) |
| Co2 Concentration | - | Less than 0.1% (Less than 1000ppm) |
| Item | Devide | Functions |
|---|---|---|
| Heat Source Equipment | Refrigerator, Boiler, Heat Pump | Making heat source for cooling and heating (cool water, hot water, refrigerant, steam warm current of air, et cetera) |
| Heat Exchange Equipment | Air Conditioner, Heat Exchanger | Adjusting and blowing temperature/humidity, cleanliness of air sent to the air conditioning space. Making heat source to be sent to the air conditioning space |
| Heating Medium Transfer Equipment | Blower, Pump, Duct, Pipe | Sending heat sources (air, water) to the air conditioning space and air conditioner |
| Indoor Unit | Outlet, Inlet, Fan Coil Unit, Catalysis Unit, Package-type Unit, Radiator, Multi-unit Air Conditioner | Converting the air in the air conditioning space to conditioned air or supplying conditioned air |
| Automatic Central Control Equipment |
Automatic Controller, Central Control, Remote Control | Automatically controlling humidity and flux and inspecting equipment for rational operation of the equipment above |
| ClassificationⅠ | |
|---|---|
| System | Details |
| Air System * Single DUCT System * Multi ZONE System * Dual DUCT System |
Uses air only as heating medium
* Single DUCT sends cold air or hot air. * Multi ZONE sends air at different temperature. * Dual DUCT sends cold and hot air to each room or each zone. |
| Water+Air System * Fan-coil Unit System * Induction Unit System |
Supplies water (hot and cold) and air to room as heating medium
* Equipped with fan. air is used in separate system. * Entices indoor air with high-pressure air. |
| Water System | Uses water only as heating medium
* Equipped with fan. Outdoor air intake is available from outer wall at the backside |
| Package System | Air conditioner equipped with refrigerator
- Water Heat Source , Air Heat Source - Duct System, Indoor Installation System - Heat Source Water System, Refrigerant System (Multi) |
| Direct Heating System
* Hot Water Heating * Steam Heating * Radiant Heating (Panel Heating) |
The system that performs heating (does not use air conditioner.)
* Convection (natural, forced) system, Radiator system * Convection (natural, forced) system, Radiator system * Set MRT high through radiant (ceiling panel, floor panel, wall panel) |
| Classification Ⅱ | |
|---|---|
| System Comparison | Details |
| Central Type and Zone Type | *Central System - Operating the whole building or large zone with one air conditioner
*Zone System - Installing air conditioner by each floor, purpose of use and load pattern [Key Point] * Equal control of temperature * Energy saving * Machine room space * Distribution performance of air |
| Single Duct and Dual Duct | * Single Duct has variables (reheat, booster coil)
[Key Point] * Individual (each room) control of temperature * Energy saving * Duct space * Economy * Mixed * Reheat loss |
| 2-piping, 3-piping, 4-piping Type | * 2-piping (supply+ventilation), 3-piping(cold water supply+hot water supply+common ventilation), 4-piping(cold water supply, ventilation+hot water supply, ventilation) [Key Point] * Individual (each room) control of temperature * Energy saving * Duct space * Economy * Mixed * Reheat loss |
| Water Cycle and Air System | * As water has 1,000 times more heat supply per unit area than air, water is better option to treat concentrated load
[Key Point] * Ventilation (air filtering, air supply) * Load treatment * Duct * Pipe space * Cost |
| Constant Flow Rate and Variable Flow Rate | * Difference between changing temperature gap (constant flow rate) and changing flow rate (variable flow rate) for load change
[Key Point] * Load change * Energy saving * Ventilation (air purity, air supply) * air distribution * Control features |
| Whole System and Part System | * Whole System - Air conditionoing the whole space
* art System - Air conditionoing task space and residential space [Key Point] * Energy saving * Temperature distribution * Limiting temperature/humidity in non-task space |
| Convection and Radiation | [Key Point]
* Comfort * Ventilation * Work * Energy saving |
