¢
Economizer input function
Cooling economizer consists of ducts, dumpers, and automatic controling system. In cold or warm
climate, the economizer reduces or stops the VRF comperssor, providing cooling using outside air.
•
Example of economizer
Economizer
logic module
Room space
Fresh air damper
Exhaust damper
Return air damper
•
How to use economizer
Operation
mode
Environmental
condition
Intaking
fresh air
Air
conditioner
Economizer
Remarks
Heating
Cold climate
34°F (1°C) or less
Minimum*
Heating
Disabled
Heating by air
conditioner
Fresh air
intake cooling
Cool climate
34 to 55°F (1 to 13°C)
Optimum
Stop
Enabled
Cooling by intaken
fresh air only
Combined
Warm climate
55 to 75°F (13 to 24°C)
100%
Cooling
Enabled
Combined cooling
by intaken fresh air
and air conditioner
VRF cooling
Hot climate
75°F (24°C) or more
Minimum*
Cooling
Disabled
Cooling by the air
conditioner
*: Minimum fresh air requirements are specified in
ASHRAE Standard 62.1
.
3-2. External input
- (08-25) -
3. Indoor unit
EXTERNAL INPUT
AND OUTPUT
EXTERNAL INPUT
AND OUTPUT
Summary of Contents for AIRSTAGE J-IIIL
Page 1: ...DESIGN TECHNICAL MANUAL ...
Page 3: ...1 GENERAL INFORMATION 2019 11 01 DV_CH01_J3LU061EF_02 ...
Page 20: ...2 5 Others 01 16 2 Optional parts GENERAL INFORMATION GENERAL INFORMATION ...
Page 21: ...2 MODEL SELECTION 2019 11 01 DV_CH02_J3LU061EF_02 ...
Page 94: ...5 1 Stand alone 02 72 5 Heating capacity table Outdoor unit MODEL SELECTION MODEL SELECTION ...
Page 95: ...3 OUTDOOR UNITS 2019 03 07 DV_CH03_J3LU061EF_01 ...
Page 120: ...11 1 Stand alone 03 24 11 Accessories OUTDOOR UNITS OUTDOOR UNITS ...
Page 121: ...4 INDOOR UNITS 2019 11 01 DV_CH04_J3LU061EF_02 ...
Page 337: ...5 CONTROL SYSTEM 2019 11 01 DV_CH05_VR2E018EF_04 ...
Page 521: ...6 SYSTEM DESIGN 2019 11 01 DV_CH06_J3LU061EF_02 ...
Page 599: ...7 FUNCTION SETTINGS 2019 11 01 DV_CH07_J3LU061EF_02 ...
Page 753: ...8 EXTERNAL INPUT AND OUTPUT 2019 11 01 DV_CH08_J3LU061EF_02 ...
Page 831: ...9 NOTES 2019 11 01 DV_CH09_J3LU061EF_04 ...
Page 850: ...4 2 Wiring connection 09 18 4 About connection between series NOTES NOTES ...
Page 851: ...10 OPTIONAL PARTS 2019 11 01 DV_CH10_VR2E018EF_05 ...