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4
TABLE OF CONTENTS
2
TIPS FOR SAVING ENERGY
2
IMPORTANT SAFETY INSTRUCTIONS
5
INSTALLATION PROCESS
5
OUTDOOR UNITS INFORMATION
5
ALTERNATIVE REFRIGERANT R410A
6
SELECT THE BEST LOCATION
6
INSTALLATION SPACE
6
Individual Installation
7
LIFTING METHOD
8
INSTALLATION
8
The location of the Anchor bolts
8
Foundation for Installation
8
Preparation of Piping
10
Plumbing materials and storage methods
11
REFRIGERANT PIPING INSTALLATION
11
Precautions on Pipe connection / Valve operation
11
Connection of Outdoor units
11
Caution
12
PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT
12
Preparation Work
13
Pipe Drawing Out during Single / Series connection
13
Refrigerant piping system
14
Pipe Connection Method between outdoor unit/indoor unit
16
Branch pipe Fitting
18
Distribution Method
18
Vacuum Mode
18
Leak Test and Vacuum drying
19
Refrigerant charging
20
Thermal insulation of refrigerant piping
21
ELECTRICAL WIRING
21
Caution
23
Control box and connecting position of wiring
23
Communication and Power Cables
24
Wiring of main power supply and equipment capacity
24
Field Wiring
29
Checking the setting of outdoor units
30
Automatic Addressing
30
The Procedure of Automatic Addressing
31
High Static Pressure Compensation mode
31
Night Low Noise Function
32
Setting the ODU address
32
Target pressure adjusting
32
Low Ambient Kit
32
High Efficiency Mode (Cooling Operation)
33
Auto Dust Removal Mode
33
Compressor Max. Frequency Limit
33
ODU Fan Max. RPM Limit
34
SLC (Smart Load Control)
34
Humidity Reference
34
Central Control Connection at Indoor Unit side
34
Compressor Input Current Limit
35
Power Consumption Display on wired remote controller
35
Comfort Cooling operation
36
Self-Diagnosis Function
39
CAUTION FOR REFRIGERANT LEAK
39
Introduction
39
Checking procedure of limiting concentration
40
INSTALLATION GUIDE AT THE SEASIDE
40
Model Designation
40
Airborne Noise Emission
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