Design Technical Manual
Table Of Contents
- CHAPTER00
- CHAPTER01_General_information
- CHAPTER02_Model_selection
- 1. MODEL SELECTION PROCEDURE
- 2. MODEL LINE UP
- 3. MODEL SELECTION AND CAPACITY CALCULATION
- 4. CAPACITY TABLE COOLING (OUTDOOR UNIT)
- 5. CAPACITY TABLE HEATING (OUTDOOR UNIT)
- 6. CAPACITY COMPENSATION COEFFICIENT
- 7. CAPACITY TABLE COOLING (INDOOR UNIT)
- 7-1. COMPACT CASSETTE TYPE
- 7-2. CIRCULAR FLOW CASSETTE TYPE
- 7-3. CASSETTE TYPE
- 7-4. MINI DUCT TYPE
- 7-5. SLIM DUCT / SLIM CONCEALED FLOOR TYPE
- 7-6. MEDIUM STATIC PRESSURE DUCT TYPE
- 7-7. HIGH STATIC PRESSURE DUCT TYPE
- 7-8. VERTICAL AIR HANDLER TYPE
- 7-9. COMPACT FLOOR TYPE
- 7-10. FLOOR / CEILING TYPE
- 7-11. CEILING TYPE
- 7-12. WALL MOUNTED TYPE
- 8. CAPACITY TABLE HEATING (INDOOR UNIT)
- 8-1. COMPACT CASSETTE TYPE
- 8-2. CIRCULAR FLOW CASSETTE TYPE
- 8-3. CASSETTE TYPE
- 8-4. MINI DUCT TYPE
- 8-5. SLIM DUCT / SLIM CONCEALED FLOOR TYPE
- 8-6. MEDIUM STATIC PRESSURE DUCT TYPE
- 8-7. HIGH STATIC PRESSURE DUCT TYPE
- 8-8. VERTICAL AIR HANDLER TYPE
- 8-9. COMPACT FLOOR TYPE
- 8-10. FLOOR / CEILING TYPE
- 8-11. CEILING TYPE
- 8-12. WALL MOUNTED TYPE
- CHAPTER03_Outdoor_units
- CHAPTER04_Indoor_units
- CHAPTER05_Control_system
- 1. CONTROL SYSTEM
- 2. CONTROL UNITS
- 2-1. SYSTEM CONTROLLER
- 2-2. SYSTEM CONTROLLER LITE
- 2-3. TOUCH PANEL CONTROLLER
- 2-4. CENTRAL REMOTE CONTROLLER
- 2-5. WIRED REMOTE CONTROLLER (Touch panel)
- 2-6. WIRED REMOTE CONTROLLER
- 2-7. SIMPLE REMOTE CONTROLLER (With Operation mode)
- 2-8. SIMPLE REMOTE CONTROLLER (Without Operation mode)
- 2-9. WIRELESS REMOTE CONTROLLER
- 2-10. IR RECEIVER UNIT (for ALL DUCT TYPE)
- 2-11. IR RECEIVER UNIT (for CASSETTE TYPE)
- 2-12. IR RECEIVER UNIT (for CIRCULAR FLOW CASSETTE TYPE)
- 2-13. HUMAN SENSOR KIT (for CIRCULAR FLOW CASSETTE TYPE)
- 2-14. REMOTE SENSOR UNIT
- 2-15. PRESSURE SENSOR KIT
- 2-16. GROUP CONTROL METHOD
- 2-17. COMPARISON TABLE OF CONTROLLERS
- 3. ADAPTOR / CONVERTOR UNITS
- 4. SERVICE & WEB MONITORING TOOL
- CHAPTER06_System_design
- CHAPTER07_Function_setting
- CHAPTER08_External_input_and_output
- CHAPTER09_Notes
- CHAPTER10_Optional_parts
- CHAPTER99
3. PIPING CONNECTION
3-1. PIPING PRECAUTIONS
CAUTION
Stay within all piping limitations to prevent system damage or malfunction.
z
Piping material
● Use the designated size ( Diameter & thickness ) of refrigerant pipes.
● Those pipes purchased locally may contain dust inside. Use dry nitrogen to blow out any duct.
● Do not use standard pipe Tees for branches , these can cause uneven refrigerant flow to the indoor units. Fujitsu
branch kits should be used instead.
T-tube
Prohibited OK
Separation tube
Reducer
● Never reuse refrigerant pipe. Only new pipe should be used.
z
Pipe Preparation and Installation
● Make sure that no dust or water enters the pipe during preparation or installation.
● When installing the pipe make as few bends as possible and make radiuses as large as possible.
● Cut the branch kit at the right size or use the reducer to match the pipe to the branch kit.
z
Brazing
● While Brazing the pipes, be sure to blow dry nitrogen gas through them.
● If nitrogen gas is not blown through the pipes while they are being brazed, an oxidized layer may form on the
inside of the pipes. If this occurs, the cooling efficiency may decrease and the air conditioner unit (compressor,
valves, etc.) be damaged.
0.02MPa
Pressure hose
Rubber stopper
Bellows valve
Nitrogen gas
● When brazing the pipes, do not use flux. If the flux is chlorine-based, the pipes will corrode and when the flux
contains fluorine, the refrigerant oil will deteriorate, etc. Using the flux has an adverse affect on the refrigerant
piping system.
● For brazing materials, use phosphor copper solder that does not require flux.
z
Piping treatment
● The pipes vibrate, expand, and contract during operation, so if loads are concentrated in one area, it could cause
cracks in the pipes. Provide the pipe supports every 6ft.6-3/4in to 9ft.10-1/8in. (2 to 3m)
● Make sure to insulate both refrigerant lines separately with the appropriately sized insulation as described earlier.
Make sure to overlap the ends to prevent any gaps.
- (06 - 60) -
SYSTEM
DESIGN
SYSTEM
DESIGN