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CS/CU Series - Parts Manual - Page 2
CONTENTS
Model No. CU-3KS19NBU
CU-4KS24NBU
OUTDOOR UNIT CU-4KS31NBU CU-3KE19NBU
CU-4KE24NBU
CU-4KE31NBU
CS-MKS7NKU
CS-MKS9NKU
CS-MKS12NKU
CS-MKS18NKU
INDOOR UNIT
CS-MKS24NKU CS-MKE7NKU
CS-MKE9NKU
CS-MKE12NKU
CS-MKE18NKU
CS-MKE24NKU
Prod.Code Volt-Phase-Hertz
1 852 361 24 1 852 361 25 1 852 361 26 1 852 361 27 1 852 361 28 1 852...
CS/CU Series - Parts Manual - Page 4
... Controller Assy(Including PCB) CB-CU-3KS19NBU-SRV 1 8549953605962
10 CV6233136264 Side Panel
1 8522111442301
11 CV6233136257 Side Panel
1 8522111441302
12 CV6231947459 Mounting Plate
1 8522238518701
13 CV6231917858 Guard
1 8522132124211
14 CV6233136240 Front Panel
1 8522111824702
15 CV6233188928 Elec. when you make service parts order: 1.Part No. 2.Description 3.Q'ty 4.Volts-Hz...
CS/CU Series - Parts Manual - Page 5
... Caution Label 78 CV6233190785 Mounting Plate
CV6233187761 Installation Instructions CV6233187778 Installation Instructions NOTE: Metal and plastic parts will be supplied basically with an asterisk (*) means the recommended service parts.
Each key number with necessary heat insulation pads or packing. ATTENTION! Part No. To ensure correct parts supply,please let us know the following...
CS/CU Series - Parts Manual - Page 6
... with necessary heat insulation pads or packing. CU-3KS19NBU OUTDOOR UNIT
Q'ty Reference No.
1 8526419058200
- 4 -
KeyNo. Description
Model Number
NOTE:
CV6233187754 Installation Instructions Metal and plastic parts will be supplied basically with an asterisk (*) means the recommended service parts. Part No. ATTENTION!
To ensure correct parts supply,please let us know the following...
CU-4KS31NBU Owner's Manual - Page 1
TECHNICAL & SERVICE MANUAL
OUTDOOR UNIT : CU-3KS19NBU CU-4KS24NBU CU-4KS31NBU
DC INVERTER MULTI-SYSTEM AIR CONDITIONER
Capacity at 230V 19,700 BTU/h 25,400 BTU/h 30,600 BTU/h
Outdoor Model No. REFERENCE NO. CU-3KS19NBU CU-4KS24NBU CU-4KS31NBU
Product Code No. 1 852 361 24 1 852 361 25 1 852 361 26
CU-3KS19NBU CU-4KS24NBU
< Applicable Indoor Units >
Wall mounted type CS-MKS7NKU CS-...
CU-4KS31NBU Owner's Manual - Page 24
Refrigerant Flow Diagram
Outdoor Unit CU-3KS19NBU
Indoor unit
Wide tube O.D.3/8" O.D.3/8" O.D.3/8"
Service valve on narrow tube
CN
Electric expansion valve...
Insulation Thickness: Min.5/16"(8 mm)
Narrow tube
24 Compressor
Heat exchanger
Narrow tube O.D.1/4"
O.D.1/4"
O.D.1/4"
Service valve on wide tube
CW
BW
AW Header
Outdoor unit
Sub
Main
accumulator accumulator
High pressure switch ...
CU-4KS31NBU Owner's Manual - Page 27
... Charts (CU-3KS19NBU) Outdoor Unit CU-3KS19NBU Indoor Unit... CS-MKS7NKU ×1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan) (230V, 60Hz)
(1) Low pressure performance chart
188 (1.3)
Lo fan
174 (1.2)
160 (1.1)
Hi fan
HH fan
Indoor
air
temp.
86°F
80°F 75°F
(30°C)
(27°C) (24°C)
Low pressure at wide tube service...
CU-4KS31NBU Owner's Manual - Page 28
Low pressure at wide tube service valve psig (MPaG)
Outdoor Unit CU-3KS19NBU
Indoor Unit CS-MKS9NKU ×1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan) (230V, 60Hz)
(1) Low pressure performance chart
188 (1.3)
Lo fan
Hi fan
...
CU-4KS31NBU Owner's Manual - Page 29
Low pressure at wide tube service valve psig (MPaG)
Outdoor Unit CU-3KS19NBU
Indoor Unit CS-MKS12NKU ×1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan) (230V, 60Hz)
(1) Low pressure performance chart
174 (1.2)
Lo fan
160 (1.1)
Hi ...
CU-4KS31NBU Owner's Manual - Page 30
Low pressure at wide tube service valve psig (MPaG)
Outdoor Unit CU-3KS19NBU
Indoor Unit CS-MKS18NKU ×1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan) (230V, 60Hz)
(1) Low pressure performance chart
174 (1.2)
160 (1.1)
Lo fan
HH ...
CU-4KS31NBU Owner's Manual - Page 31
... tubing length is for a tubing length of a single wall-mounted indoor unit. Outdoor Unit CU-3KS19NBU
Indoor Unit CS-MKS9NB4U ×1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High...)
(1) Low pressure performance chart
174 (1.2)
Lo fan
Hi fan
HH fan
Low pressure at wide tube service valve psig (MPaG)
160 (1.1)
146 (1.0)
In87d05o°°FFor((2a27i4r°°tCCe)m) p. 86...
CU-4KS31NBU Owner's Manual - Page 32
... unit. The performance chart will vary.
32 Outdoor Unit CU-3KS19NBU
Indoor Unit CS-MKS12NB4U ×1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan) (230V, 60Hz)
(1) Low pressure performance chart
174 (1.2)
Lo fan
Hi fan
160 (1.1)
HH fan
Low pressure at wide tube service valve psig (MPaG)
146 (1.0)
132 (0.9)
Indoor air temp...
CU-4KS31NBU Owner's Manual - Page 33
Outdoor Unit CU-3KS19NBU
Indoor Unit CS-KS18NB4UW ×1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan) (230V, 60Hz)
(1) Low pressure performance chart
174 (1.2)
Lo fan
Hi fan
HH fan
Low pressure at wide tube service valve psig (MPaG)
160 (1.1)
146 (1.0)
132 (0.9)
Indoor air temp. 86°F (30°C) 80°F (27°...
CU-4KS31NBU Owner's Manual - Page 88
...LQVXODWLRQIDLOXUH the unit must :
Carefully read this instruction booklet before beginning.
Follow each installation or repair step exactly as this manual. Provide a suitable air baffle.
...In a Snowy Area
Install the outdoor unit on a raised platform that can cause dripping and water damage to provide added support.
...In a Room
Properly insulate any tubing run inside the...
CU-3KS19NBU/CU-4KS24NBU/CU-4KS31NBU - Installation Manual - Page 3
... Carefully read this instruction booklet before beginning.
Follow each installation or repair step exactly as ...problem, contact our sales/service outlet or your job to walls and floors.
WARNING
This symbol refers to reduce strain on a raised platform that can result in this manual. If you must be necessary to construct a strong wood or metal frame to provide added support...
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