5
ENGLISH
2 TIPS FOR SAVING ENERGY
2 IMPORTANT SAFETY INSTRUCTIONS
6 INSTALLATION PROCESS
6 OUTDOOR UNITS INFORMATION
8 ENVIRONMENT-FRIENDLY ALTERNATIVE
REFRIGERANT R410A
8 SELECT THE BEST LOCATION
9 INSTALLATION SPACE
9 Individual Installation
9 LIFTING METHOD
10 INSTALLATION
10 The location of the Anchor bolts
10 Foundation for Installation
10 Preparation of Piping
12 Plumbing materials and storage methods
12 REFRIGERANT PIPING INSTALLATION
12 Precautions on Pipe connection / Valve operation
13 PIPE CONNECTIONS BETWEEN INDOOR
AND OUTDOOR UNIT
13 Preparation Work
13 Pipe Drawing Out during Single / Series connection
14 Refrigerant piping system
14 Pipe Connection Method between outdoor unit/indoor unit
17 Refrigerant charging
18 Distribution Method
18 Branch pipe Fitting
19 Leak Test and Vacuum drying
20 Vacuum Mode
21 Heat insulation of refrigerant piping
21 ELECTRICAL WIRING
21 Caution
22 Control box and connecting position of wiring
23 Communication and Power Cables
23 Wiring of main power supply and equipment capacity
24 Point for attention regarding quality of the public electric power
supply
25 Field Wiring
27 Checking the setting of outdoor units
27 Automatic Addressing
28 Group Number setting
28 Cool & Heat selector
28 Static pressure compensation mode
28 Night Low Noise Function
29 Overall defrost mode
29 Setting the ODU address
29 Snow removal & rapid defrost
30 Target pressure adjusting
30 High Efficiency cooling mode
30 Auto dust removal mode
31 Smart Load Control
31 Comfort Cooling Function
32 Self-Diagnosis Function
35 CAUTION FOR REFRIGERANT LEAK
35 Introduction
35 Checking procedure of limiting concentration
36 INSTALLATION GUIDE AT THE SEASIDE
36 Model Designation
36 Airborne Noise Emission
TABLE OF CONTENTS
p
ower switch turned on during the opera-
tional season.
• Do not touch any of the refrigerant piping
during and after operation.
- It can cause a burn or frostbite.
• Do not operate the air conditioner with the
panels or guards removed.
- Rotating, hot, or high-voltage parts can
cause injuries.
• Do not directly turn off the main power
switch after stopping operation.
- Wait at least 5 minutes before turning off
the main power switch. Otherwise it may
result in water leakage or other problems.
• Auto-addressing should be done in condition
of connecting the power of all indoor and
outdoour units. Auto-addressing should also
be done in case of changing the indoor unit
PCB.
• Use a firm stool or ladder when cleaning or
maintaining the air conditioner.
- Be careful and avoid personal injury.
• Do not insert hands or other objects through
the air inlet or outlet while the air condi-
tioner is plugged in.
- There are sharp and moving parts that
could cause personal injury.
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