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Air Conditioner
Panasonic
CS-MKS12NKU, CU-3KS19NBU, CU-4KS24NBU
1. OPERATING RANGE
1
7
114
114
Download
114 pages, 2.1 Mb
95 °F DB / 71 °F
WB
67 °F DB / 57 °F
WB
1.
OPERA
TING RANGE
Maximum
Minimum
115 °F DB
14 °F DB
T
emperature
Indoor Air Intake
T
emp.
Outdoor Air Intake
T
emp.
Cooling
7
Contents
Main
IMPORTANT
TECHNICAL & SERVICE MANUAL
OUTDOOR UNIT : CU-3KS19NBU CU-4KS24NBU CU-4KS31NBU
CU-4KS31NBU
DC INVERTER MULTI-SYSTEM AIR CONDITIONER
CU-3KS19NBU
SAFETY PRECAUTIONS
Warning
Caution
Table of Contents
Page
APPLICABLE INDOOR UNITS
Wall Mounted Type
Semi-Concealed Type
1. OPERATING RANGE
2. SPECIFICATIONS
2-1. Unit Specifications
Indoor Unit CS-MKS9NKU 2
Outdoor Unit CU-3KS19NBU Indoor Unit CS-MKS9NKU 3
Indoor Unit CS-MKS9NKU 3< 208V >
Indoor Unit CS-MKS7NKU + CS-MKS9NKU 2
Indoor Unit CS-MKS9NKU 3< 230V >
Indoor Unit CS-MKS9NKU 3< 208V >
Indoor Unit CS-MKS7NKU 3 + CS-MKS9NKU
Indoor Unit CS-MKS9NKU 4< 230V >
Indoor Unit CS-MKS9NKU 4< 208V >
2-2-1. Outdoor Unit
2-2. Major Component Specifications
Page
Page
2-3. Other Component Specifications
ID:23/32
2-ID:15/16
3. DIMENSIONAL DATA
Outdoor Unit CU-3KS19NBU
(852-0-0010-11500-0)
ID:23/32
2-ID:15/16
Outdoor Unit CU-4KS24NBU
(852-0-0010-20500-0)
ID:23/32
2-ID:15/16
Outdoor Unit CU-4KS31NBU
(852-0-0010-20600-0)
4. REFRIGERANT FLOW DIAGRAM
4-1. Refrigerant Flow Diagram
Outdoor Unit CU-3KS19NBU
Outdoor Unit CU-4KS24NBU
Outdoor Unit CU-4KS31NBU
Outdoor Unit CU-3KS19NBU Indoor Unit CS-MKS7NKU 1
5-1-1. Temperature Charts (CU-3KS19NBU)
5. PERFORMANCE DATA
5-1. Temperature Charts
Indoor air temp. 86F (30C) 80F (27C) 75F (24C)
Indoor air temp. 86F (30C) 80F (27C) 75F (24C)
Indoor air temp. 86F (30C) 80F (27C) 75F (24C)
Outdoor Unit CU-3KS19NBU Indoor Unit CS-MKS9NKU 1
Indoor air temp. 86F (30C) 80F (27C) 75F (24C)
Indoor air temp. 86F (30C) 80F (27C) 75F (24C)
Indoor air temp. 86F (30C)
75F (24C)
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan) (230V, 60Hz)
(In this case, be sure to stop all the indoor units where performance is not being checked.)
Indoor air temp. 86F (30C)
80F (27C)
Outdoor Unit CU-3KS19NBU Indoor Unit CS-MKS18NKU 1
Indoor air temp. 86F (30C)
80F (27C)
75F (24C)
Indoor air temp. 86F (30C)
Outdoor Unit CU-3KS19NBU Indoor Unit CS-MKS9NB4U 1
Outdoor Unit CU-3KS19NBU Indoor Unit CS-MKS12NB4U 1
Indoor air temp. 86F (30C)
80F (27C)
Outdoor Unit CU-3KS19NBU Indoor Unit CS-KS18NB4UW 1
Indoor air temp. 86F (30C)
Indoor air temp. 86F (30C)
Indoor air temp. 86F (30C)
Outdoor Unit CU-4KS24NBU Indoor Unit CS-MKS7NKU 1
5-1-2. Temperature Charts (CU-4KS24NBU)
Indoor air temp. 86F (30C)
80F (27C)
75F (24C)
Indoor air temp. 86F (30C)
Outdoor Unit CU-4KS24NBU Indoor Unit CS-MKS9NKU 1
80F (27C)
Indoor air temp. 86F (30C)
Outdoor Unit CU-4KS24NBU Indoor Unit CS-MKS12NKU 1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan) (230V, 60Hz)
(In this case, be sure to stop all the indoor units where performance is not being checked.)
75F (24C)
Outdoor Unit CU-4KS24NBU Indoor Unit CS-MKS18NKU 1
Indoor air temp. 86F (30C)
Indoor air temp. 86F (30C)
75F (24C)
Indoor air temp. 86F (30C)
Outdoor Unit CU-4KS24NBU Indoor Unit CS-MKS24NKU 1
80F (27C)
75F (24C)
Indoor air temp. 86F (30C)
80F (27C)
Outdoor Unit CU-4KS24NBU Indoor Unit CS-MKS9NB4U 1
Outdoor Unit CU-4KS24NBU Indoor Unit CS-MKS12NB4U 1
Indoor air temp. 86F (30C)
80F (27C)
Outdoor Unit CU-4KS24NBU Indoor Unit CS-KS18NB4UW 1
Indoor air temp. 86F (30C)
Indoor air temp. 86F (30C)
Indoor air temp. 86F (30C)
Outdoor Unit CU-4KS31NBU Indoor Unit CS-MKS7NKU 1
5-1-3. Temperature Charts (CU-4KS31NBU)
Indoor air temp. 86F (30C)
80F (27C)
75F (24C)
80F (27C)
Outdoor Unit CU-4KS31NBU Indoor Unit CS-MKS9NKU 1
Indoor air temp. 86F (30C)
Indoor air temp. 86F (30C)
80F (27C)
80F (27C)
Outdoor Unit CU-4KS31NBU Indoor Unit CS-MKS12NKU 1
Indoor air temp. 86F (30C)
Indoor air temp. 86F (30C)
80F (27C)
75F (24C)
Outdoor Unit CU-4KS31NBU Indoor Unit CS-MKS18NKU 1
80F (27C)
Indoor air temp. 86F (30C)
75F (24C)
80F (27C)
Outdoor Unit CU-4KS31NBU Indoor Unit CS-MKS24NKU 1
Indoor air temp. 86F (30C)
80F (27C)
75F (24C)
Indoor air temp. 86F (30C)
Outdoor Unit CU-4KS31NBU Indoor Unit CS-MKS9NB4U 1
Indoor air temp. 86F (30C)
Indoor air temp. 86F (30C)
80F (27C)
80F (27C)
Outdoor Unit CU-4KS31NBU Indoor Unit CS-MKS12NB4U 1
Indoor air temp. 86F (30C)
Indoor air temp. 86F (30C)
80F (27C)
75F (24C)
Outdoor Unit CU-4KS31NBU Indoor Unit CS-KS18NB4UW 1
80F (27C)
Indoor air temp. 86F (30C)
75F (24C)
80F (27C)
5-2. Cooling Capacity
Indoor Unit : CS-MKS12NB4U 3
Page
Indoor Unit : CS-KS18NB4UW + CS-MKS12NB4U + CS-MKS12NB4U
Indoor Unit : CS-MKS9NKU 4
Indoor Unit : CS-MKS9NB4U 4
5-3. Cooling Capacity (Low Ambient)
Indoor Unit : CS-MKS12NB4U 3
Page
Indoor Unit : CS-KS18NB4UW + CS-MKS12NB4U + CS-MKS12NB4U
Indoor Unit : CS-MKS9NKU 4 Power Supply : 230V Single Phase 60Hz
Indoor Unit : CS-MKS9NB4U 4
Page
Page
Page
7. FUNCTIONS
7-1. Explanation of Functions
Control/conditions COOL
Unit operation Explanation
Table 1
Frequency control
Control/conditions SENSOR DRY
1/f fluctuation fan
250 200
6-minute cycle
150 100
(Step) 50 0
< Low Ambient Cooling Operation >
7-2. Protective Functions
Description of function
7-2-1. Current Control
(1) Automatic frequency control
(2) Current control
7-2-2. Low Start Current
7-2-3. Compressor Temperature Control
8. TROUBLESHOOTING (BEFORE CALLING FOR SERVICE)
8-1. Precautions before Performing Inspection or Repair
8-2. Trouble Diagnosis by Error Monitor Lamps
8-2-1. Location of the Error Monitor Lamps
8-2-2. Display of the Error Monitor Lamps
Warning
8-3-1. Checking the outdoor unit
8-3. Checking the Outdoor System
8-4. Trouble Diagnosis of Each Part
8-4-1. Problems of Each Part and Inspection Points
8-4-2. Inspection Points for Each Part
*1
Page
8-5. Trouble Diagnosis of Fan Motor
9. REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT
9-1. Characteristics of New Refrigerant R410A
9-1-1. What is New Refrigerant R410A?
9-1-2. Components (mixing proportions)
9-1-3. Characteristics
9-2. Checklist before Servicing
9-3. Tools Specifically for R410A
9-4. Tubing Installation Procedures
9-5. In Case of Compressor Malfunction
9-5-1. Procedure for Replacing Compressor
NO!
9-6. In Case Refrigerant is Leaking
9-7. Charging Additional Refrigerant
9-8. Retro-Fitting Existing Systems
Page
For Outdoor Unit
This air conditioner uses the refrigerant R410A. External diameter of service port R410A: 5/16"
Split System Air Conditioner
INSTALLATION INSTRUCTIONS
Contents
IMPORTANT! Please Read Before Starting
If Necessary, Get Help
In Case of Improper Installation
SPECIAL PRECAUTIONS
When Wiring
When Servicing
Others
NOTE
1. General
2. Installation Site Selection
Page
Fig. 4b
(2) Connecting indoor unit for CU-4KS24NBU
Fig. 4c
(1) Connecting indoor unit for CU-3KS19NBU
Fig. 4a
Fig. 4d
(D)
Fig. 4f
(C)
Fig. 4e
Fig. 4g
(3) Connecting indoor unit for CU-4KS31NBU
Fig. 4h
(C)
Fig. 4i
(D)
Fig. 4j
(E)
Fig. 4k
NO
(1) Recommended dimensions of the baffle plates
Fig. 5h For Air Intake
Air Intake Baffle Air Discharge Baffle
Air Intake Baffle Air Discharge Baffle
Fig. 5g
Page
Fig. 6a
unit: inch (mm)
A
(3) CU-4KS31NBU
A
Fig. 6b
2-6. Diagram of Outdoor Unit Installation Never install only a single indoor unit.
Over 10"(25cm)
Fig. 7
Access panel C
Over 8"(20cm)
3. Installation Process
A
C
B
D
Page
4. Air Purging
C
B
A
(for Test Run)
Page
C
D B A
D C B A
5. Wiring Instructions
WARNING
Be sure to comply with local codes on running the
UNIT A
L2
*
Page
Indoor unit B
Indoor unit A
Fig. 31
Outdoor unit
Indoor unit C
6. Test Run
7. Connecting a Home Automation Device
8. Installation Check Sheet