Kaisai SUPER DC INVERTER SERIES User manual

Contents i
New Energy Requirement
SUPER DC INVERTER SERIES
Service Manual 2012
LFIS-B-1211

ii General Information

Contents LFIS-B-1211
Contents i
Part 1 General Information .................................................................................................... 1
Part 2 Indoor Units ................................................................................................................. 6
Part 3 Outdoor Units............................................................................................................. 41
Part 4 Installation.................................................................................................................. 50
Part 5 Electrical Control System......................................................................................... 78
※The specifications, designs, and information in this book are subject to change without notice for
product improvement.

LFIS-B-1211 General Information
General Information 1
Part 1
General Information
1. Model Lists................................................................................................2
2. External Appearance................................................................................3
2.1 Indoor Units............................................................................................................ 3
2.2 Outdoor Units......................................................................................................... 3
3. Nomenclature ...........................................................................................4
4. Features....................................................................................................5

Model Lists LFIS-B-1211
2 General Information
Model Lists
1.1 Indoor Units
R410A (capacity multiplied by 1000Btu/h)
Type Function 18 24 36
Super slim cassette Cooling and heating ●●●
Duct Cooling and heating ●●●
Ceiling-floor Cooling and heating ●●●
1.2 Outdoor Units
Universal Outdoor unit Model Compressor type Compressor Brand Matched indoor units
KOU-18HFN1-QRC4 Rotary GMCC
KCD-18HRFN1-QRC4
KTB-18HWFN1-QRC4
KUE-18HRDN1-QRC4
KOU-24HFN1-QRC4 Rotary GMCC
KCD-24HRFN1-QRC4
KTB-24HWDN1-QRC4
KUE-24HRDN1-QRC4
MOU-24HFN1-QRC8 Rotary GMCC
KCD-24HRFN1-QRC8
KUE-24HRFN1-QRC8
MOU-36HFN1-QRC4 Scroll Mitsubishi
KCD-36HRFN1-QRC4
KTB-36HWFN1-QRC4
KUE-36HRFN1-QRC4
MOU-36HFN1-RRC4 Scroll Mitsubishi
KCD-36HRFN1-QRC4
KTB-36HWFN1-QRC4
KUE-36HRFN1-QRC4

LFIS-B-1211 External Appearance
General Information 3
External Appearance
1.2 Indoor Units
Super slim cassette
Duct
Ceiling-Floor
2.2 Outdoor Units
Single fan outdoor unit

Nomenclature LFIS-B-1211
4 General Information
Nomenclature
3.1 Indoor Unit
M U B T- 36 H R D N1- R
Power Supply
Q 220~240V,1N, 50Hz
R 380~420V, 3N, 50Hz
N 220~230V, 1N, 60Hz
D 220V~, 3N, 60Hz
C 380~420V,3N,60Hz
Refrigerant
N1 R410A -- R22
D DC Inverter -- On-Off
F Full DC
Control Mode
W Wired Control E Electric Control
M Mechanical Control R Remote Control
Function Code
C Cooling Only HCooling & Heating
A Cooling & Heating+PTC
Capacity (×1000Btu/h)
T Tropical Condition
-- T1 Condition
Designed Time
A Time A Designed BTime B Designed
C Time C Designed D Time D Designed
Product Category
C Cassette Type V AHU Type
T Duct Type F Console Type
U Ceiling & Floor Type
H High Static Pressure Duct Type
Midea
3.2 Outdoor Unit
M
O U T- 36 H D N1- R
Power Supply
Q 220~240V,1N, 50HZ
R 380~420V, 3N, 50Hz
N 220~230V, 1N, 60Hz
D 220V~, 3N, 60Hz
C 380~420v,3N,60HZ
Refrigerant
N1 R410A -- R22
D DC Inverter -- On-Off
F Full DC
Function Code
C Cooling Only HCooling & Heating
A Cooling & Heating+PTC
Capacity (×1000Btu/h)
T Tropical Condition
-- T1 Condition
U Side Discharge Outdoor Unit
VTop Discharge Outdoor Unit
SCentrifugal Fan Outdoor Unit
O Outdoor unit
Midea

LFIS-B-1211 Features
General Information 5
Features
4.1. To meet Europe Alevel, actual EER/COP of new product with BLDC motors of indoor & outdoor unit and
DC compressor will be higher than 3.4.
4.2. Low ambient kit is standard for outdoor units
4.3. Network control function is standard for the indoor units.
4.4. Standard auto restart function and follow me function.
4.5. Slim cassette with standard remote controller, wire controller and CCM for optional. Med Duct and
HESP duct with standard wired controller, remote controller and CCM for optional.
4.6. Standard anti-cold air function.
4.7. Standard auto defrosting function.
4.8. Standard self-diagnose function.
4.9. Standard timer function and sleep mode function controlled by controller.

Indoor Units LFIS-B-1211
6 Indoor Units
Part 2
Indoor Units
Super Slim Cassette Type ...............................................7
Duct Type........................................................................20
Ceiling & Floor Type ......................................................33

LFIS-B-1211 Super Slim Cassette Type
Indoor Units 7
Super Slim Cassette Type
1. Features..............................................................................8
2. Dimensions.......................................................................12
3. Service Space...................................................................13
4. Wiring Diagrams...............................................................14
5. Electric Characteristics ...................................................15
6. Sound Levels....................................................................16
7. Accessories......................................................................17
8. The Specification of Power..............................................18
9. Field Wiring ......................................................................19

Features LFIS-B-1211
8 Indoor Units
1. Features
1.1 Overview
Compact design, super slim body size, less space requiring in installation
Each louver can be separately controlled, more comfort air blowing is possible.
Auto-lifting panel design, more convenient to clean and maintain the filter.(optional)
Old Cassette New slim cassette Volume change
Dimension
18K-24K
：
840*230*840
18K-24K
：
840*203*840
13.3%↓
30K
：
840*300*840
30K
：
840*203*840
47.7%↓
36K-48K
：
840*300*840
36K-48K
：
840*245*840
22.4%↓
1.2 Fresh air intake function
Fresh air fulfills air quality more healthy and comfortable.
Ventilation motor is optional to increase the effect of fresh air.

LFIS-B-1211 Features
Indoor Units 9
1.3 Optional ionizer generator
Ionizer generator is optional to get refreshing air to your room.
Ionizer can be switched on or off by remote controller.
When pressing the Clean Air button on the remote controller, Ionizer will work and the indicator light on
display board will shine.
New air-intake
I
Io on ni iz ze er r g ge en ne er ra at to or r
c
co on nn ne ec ct to or r
V
Ve en nt ti il la at ti io on n m mo ot to or r
c
co on nn ne ec ct to or r

Features LFIS-B-1211
10 Indoor Units
1.4 External air duct design
Reserve external air duct, more flexible for the air supply.
1.5 Built-in draining pump
Due to the improvement of structure, more convenient to repair or replace the draining pump.
Built-in draining pump to make sure condensed water drain out reliably.
Draining Pump

LFIS-B-1211 Features
Indoor Units 11
1.6 Terminals for alarm lamp and long-distance on-off controller connection are standard
Reserve terminals for the connection of alarm lamp and long-distance on-off controller, more human
control.
1.7 Standard touch screen wired controller
Touch screen wired controller is standard, with error code indication function. Better
man-machine conversation interface.
Undated structure design, 4-way wire layout design, no raised part at backside, more convenient to
place the wires and install the device.
Remote controller is optional (without auto-lifting panel function).
1.8 Twins Combination
The units can be installed as Twin systems: one outdoor unit can connect with two indoor units. The
indoor units can be combined in any of the different available ratings.
Alarm lamp
Long-distance on-off controller

Dimensions LFIS-B-1211
12 Indoor Units
2. Dimensions
Model
A
H
18
205
>235
24
205
>235
36
245
>275

LFIS-B-1211 Service Space
Indoor Units 13
3. Service Space
>1000mm
>1000mm
>1000mm
>1000mm

Wiring Diagrams LFIS-B-1211
14 Indoor Units
4. Wiring Diagrams
KCD-18HRFN1-QRC4 KCD-24HRFN1-QRC4 KCD-24HRFN1-QRC8 KCD-36HRFN1-QRC4

LFIS-B-1211 Electric Characteristics
Indoor Units 15
5. Electric Characteristics
Model Indoor Unit
Power
Supply
Hz
Voltage
Min
Max
MFA
KCD-18HRFN1-QRC4
50
220-240
198
254
15
KCD-24HRFN1-QRC4
50
220-240
198
254
15
KCD-24HRFN1-QRC8
50
220-240
198
254
15
KCD-36HRFN1-QRC4
50
220-240
198
254
15
Notes:
MFA: Max. Fuse Amps. (A)

Sound Levels LFIS-B-1211
16 Indoor Units
6. Sound Levels
1.0m
Microphone
Model Noise Power dB(A) Noise level dB(A)
H M L
KCD-18HRFN1-QRC4
58 47 43 36
KCD-24HRFN1-QRC4
59 48 44 40
KCD-24HRFN1-QRC8
64 48 44 40
KCD-36HRFN1-QRC4
65 54 50 48