-
TECHNICAL & SERVICE MANUAL
1
-
Table of Contents
4
-
10. CHECKING ELECTRICAL COMPONENTS
5
-
95 °F DB / 71 °F WB
6
-
2-1. Unit Specifications
7
-
CS-KE12NB41 & CZ-18BT1U
8
-
< 230V >
9
-
CS-KE18NB4UW & CZ-18BT1U
10
-
Indoor Unit (Body)
13
-
2-2-2. Outdoor Unit
15
-
Control Circuit Fuse
16
-
2-3. Other Component Specifications
17
-
3. DIMENSIONAL DATA
18
-
Narrow tube service valve
19
-
High pressure at wide tube service valve
24
-
5-2. Cooling Capacity
27
-
: CS-KE18NB4UW & CZ-18BT1U
28
-
5-3. Cooling Capacity (Low Ambient)
29
-
5-4. Heating Capacity
31
-
6. ELECTRICAL DATA
33
-
CZ-KE18NB4U & CZ-18BT1U
34
-
6-2. Electric Wiring Diagrams
35
-
Outdoor Unit CU-KE12NK1
36
-
Outdoor Unit CU-KE18NKU
37
-
Test run mode
38
-
7-3. Disassembly Procedure
40
-
7-3-3. Remove the ceiling panel.
41
-
7-3-4. Remove the indoor air temperature sensor.
42
-
7-3-7. Remove the heat exchanger sensor.
45
-
7-3-9. Remove the turbo fan and fan motor.
46
-
AUTO cooling/heating operation
47
-
Overload prevention during heating
49
-
< Clock display >
51
-
What is the latest self-diagnosis result ?
55
-
(3-2) Condition: E12
56
-
9-4-2. Outdoor Fan Motor
58
-
10-2. Checking Continuity of Fuse
61
-
11. REFRIGERANT R410A:
62
-
11-3. Tools Specifically for R410A
64
-
11-5. In Case of Compressor Malfunction
65
-
Charge liquid refrigerant with
66
-
Length of tubing
67
-
11-7. Charging Additional Refrigerant
68
-
CS-KE12NB41 & CZ-18BT1U + CU-KE12NK1
70
-
Split System Air Conditioner
71
-
NAMES OF PARTS
74
-
REMOTE CONTROLLER (DISPLAY)
75
-
USING THE REMOTE CONTROLLER
78
-
OPERATION WITH THE REMOTE CONTROLLER
79
-
3. Adjusting the Fan Speed
80
-
2. How to set the OFF time
82
-
USING THE 1-HOUR OFF
83
-
OPERATION WITHOUT THE
84
-
(BEFORE CALLING FOR SERVICE)
86
-
• For Single use
87
-
• For Multiple use
88
-
This air conditioner uses the refrigerant R410A.
91
-
Please Read Before Starting
92
-
the flare and union tubes before connecting them,
93
-
For unit & PVC
94
-
2-2. Outdoor Unit
96
-
Suspension bolt (M10 or 3/8")
97
-
(2) Removing the corner cover and
100
-
fit into the holes in the ceiling panel.
101
-
3-7. Wiring Instructions
102
-
(A) Power Supply Wiring Length (ft)
103
-
For stranded wiring
105
-
5. Refrigerant Tubing
106
-
5-4. Connecting Tubing between Indoor and
107
-
Be sure to use a manifold valve for
108
-
How to Test Run the Air Conditioner
110
-
7. Remote Controller Installation Position
112
-
8. Address Switch
113
-
Wired Remote Controller
115
-
• Microprocessor Controlled Operation
116
-
We recommend that this wired remote controller be
117
-
SETTING THE TIMER
123
-
Parts supplied with the remote controller
127
-
A. Installing with in-wall junction box
128
-
7P IND and 4P RC
129
-
HIGH POWER lamp
130
