Electra ELSI-JYD009-H11, ELSI-JYD012-H11, ELSI-JYD018-H11, ELAU-VBZ214-H11, ELAU-VBZ318-H11 Service Manual

...
Page 1
VBZ214-318-430
Indoor Units Outdoor Units
ELSI-JYD009-H11 ELSI-JYD012-H11 ELSI-JYD018-H11
ELAU-VBZ214-H11 ELAU-VBZ318-H11
ELAU-VBZ430-H11
REFRIGERANT
R410A HEAT PUMP
JUNE- 2011
SM VBZ H11 1-A.1 GB
Version:1
Page 2
LIST OF EFFECTIVE PAGES
A Service Manual –VBZ DCI 1-A.1 GB
LIST OF EFFECTIVE PAGES
Note: Changes in the pages are indicated by “Revision #” in the footer of each effected page
(when none indicates any changes in the relevant page). All pages in the following list represent effected/ non effected pages divided by chapters.
Dates of issue for original and changed pages are:
Original ....... 01........ 14 Nov, 10
Total number of pages in this publication is 82 consisting of the following:
Page No.
Revision No. #
Page
No.
Revision No. #
Page
No.
Revision No. #
* Zero in this column indicates an original page.
Table of Contents
Page 3
TABLE OF CONTENTS
Service Manual – VBZ DCI 1-A.1 GB i
1. INTRODUCTION............................................................................................................................. 1-1
2. PRODUCT DATA SHEET............................................................................................................... 2-1
3. RATING CONDITIONS................................................................................................................... 3-1
4. OUTLINE DIMENSION...................................................................................................................4-1
5. PERFORMANCE DATA.................................................................................................................5-1
6. PRESSURE CURVES..................................................................................................................... 6-1
7. SOUND LEVEL CHARACTERISTICS ........................................................................................... 7-1
8. ELECTRICAL DATA....................................................................................................................... 8-1
9. WIRING DIAGRAM......................................................................................................................... 9-1
10. REFRIGERATION DIAGRAMS...................................................................................................... 10-1
11. TUBING CONNECTIONS............................................................................................................... 11-1
12. CONTROL SYSTEM....................................................................................................................... 12-1
13. TROUBLESHOOTING.................................................................................................................... 13-1
14. CHARACTERISTICS OF SENSOR................................................................................................ 14-1
15. EXPLODED VIEW & SPARE PART LIST...................................................................................... 15-1
Page 4
INTRODUCTION
1. INTRODUCTION
1.1 General
The VBZ DC inverter multisplits outdoor is a multi-tubing system with 2, 3 or 4 connected indoor units. The multi-split inverter is a high level technology product for residential and commercial application offering comfort, low noise operation and energy saves.
.
1.2 Main Features
The unit benefits from the most advanced technological innovations, namely:
DC inverter technology.
R410A models
Microprocessor control and indoor LED display
High COP, Energy efficiency class A in cooling/heating mode
Max allowing total tubing distance of 70m(for model 18,30)
Up to 10 m vertical high between indoor and outdoor units(for model 18,30)
Easy installation and service.
Sleep mode from remote control to save energy
ON/OFF timer and clock display
Vertical auto swing with motorized flap (any position stop)
Intelligent Deicing
Memory from power failure
Rapid cooling/heating
I-Feel function
Cold air prevention in heating
Clean function (Blow dry)
Self diagnostic (Error indications) for ease of maintenance
Service Manual – VBZ DCI 1-A.1 GB 1-1
Page 5
INTRODUCTION
1-2 Service Manual – VBZ DCI 1-A.1 GB
1.3 Indoor Unit
The indoor unit is wall mounted, and can be easily fitted to many types of residential locations. It includes:
LED display
Variable speed with PG motor
Motorized flap
High efficiency filtration to ensure a best Air Quality: Advanced filtering combine
mechanical, Photo-catalytic + Bi-anti bacterial and observe bad gaseous and smokes.
1.4 Control
The microprocessor indoor controller, and an infrared remote control, supplied as standard, provides complete operating function and programming.
Remote control RC 8
Compact and economically design, it offers excellent user comfort. Combining modern design
with high technology, the RC8 remote control offers powerful functions of real considering of user
comfort and energy saving of air-conditioner.
For detail of functions, please refer to Appendix 1
Page 6
INTRODUCTION
Service Manual – VBZ DCI 1-A.1 GB 1-3
1.5 Outdoor Unit
The outdoor units can be installed as floor or wall mounted units by using a wall supporting bracket. The metal sheets are protected by anti- corrosion paint work allowing long life resistance. All outdoor units are pre-charged. For further information please refer to the Product Data Sheet, Chapter 2. It includes:
Compressor mounted in a soundproofed compartment :
Axial fan.
Outdoor coil with JYDrophilic louver fins for RC units.
Outlet air fan grill.
Interconnecting wiring terminal block.
Electric expansion valves to control the refrigerant to each indoor.
1.6 Tubing Connections
Flare type interconnecting tubing to be produced on site. For further details please refer to the Installation Manual.
1.7 Inbox Documentation
Each unit is supplied with its own installation, operation and remote control manuals.
Page 7
INTRODUCTION
1-4 Service Manual – VBZ DCI 1-A.1 GB
1.8 Matching Table
INDOOR UNITS
ELSI-JYD009-H11 ELSI-JYD012-H11 ELSI-JYD018-H11
OUTDOOR UNITS
ELAU-VBZ214-H11
X X
ELAU-VBZ318-H11
X X X
ELAU-VBZ430-H11
X X X
Page 8
INTRODUCTION
Service Manual – VBZ DCI 1-A.1 GB 1-5
1.9 Indoor unit combination
ELAU-VBZ214-H11
ELAU-VBZ214-H11
JOAU-ZBY214-H11
1 unit 2 units
9 9+9
12 9+12
ELAU-VBZ318-H11 ELAU-VBZ318-H11
2 units 3 units
9+9 9+12 9+9+9 9+9+12 9+9+18
9+18 12+12 9+18+18 9+12+12 9+12+18
12+18 18+18 12+12+12 12+12+18 12+18+18
ELAU-VBZ430-H11 ELAU-VBZ430-H11
2 units 3 units 4units
9+9 9+12 9+9+9 9+9+12 9+9+18 9+9+9+9 9+9+9+12 9+9+9+18
9+18 12+12 9+18+18 9+12+12 9+12+18 9+9+12+12 9+9+12+18 9+9+18+18
12+18 18+18 12+12+12 12+12+18 12+18+18 9+12+12+12 9+12+12+18 9+12+18+18
12+12+12+12 12+12+12+18 12+12+18+18
Page 9
PRODUCT DATASHEET
Service Manual – VBZ DCI 1-A.1 GB 2-1
2. PRODUCT DATA SHEET
Model Outdoor Unit
VBZ214
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (4) kW 3.90(2.00-4.70) 4.30(2.50-5.50) Power input (4) kW 1.14(0.50-2.00) 1.13(0.58-2.15) EER (Cooling) or COP(Heating) (4) W/W 3.42 3.80 Energy efficiency class A A
V 220-240
Ph 1
Power supply
Hz 50
Rated current A 5.11 5.06
Power factor
0.97 0.97
Prated (IDU+ODU)
W Starting current A Circuit breaker rating A 25
Refrigerant control EEV Compressor type, model Sanyo Twin Rotary,C-6RZ146H1A Fan type & quantity Propeller(direct) x 1 Fan speeds H RPM 880/700/500 Air flow H m3/hr 2600/2300/1600 Sound power level H dB(A) 66 Sound pressure level(3) H dB(A) 56 Dimensions WxHxD mm 899X596X378 Net Weight kg 43 Package dimensions WxHxD mm 980X420X645 Packaged weight kg 48 Refrigerant type R410A
Standard charge
kg 1.4
Additional charge 20g/m(10m<L<20m)
Liquid line In.(mm) 2x1/4"(6.35) Suction line In.(mm) 2x3/8"(9.53) Max.tubing length m. Max.10m for one unit and 20m for total height difference
between indoor units
m Max. 5
OUTDOOR
Connections
between units
height difference between indoor & outdoor
m. Max. 5
Page 10
PRODUCT DATA SHEET
2-2 Service Manual – VBZ DCI 1-A.1 GB
Model Outdoor Unit
VBZ318
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (4) kW 6.80(2.20-10.00) 8.00(2.80-11.00) Power input (4) kW 2.11(0.65-4.50) 2.21(0.98-3.95) EER (Cooling) or COP(Heating) (4) W/W 3.22 3.62 Energy efficiency class A A
V 220-240
Ph 1
Power supply
Hz 50 Rated current A 9.45 9.90
Power factor
0.97 0.97
Prated (IDU+ODU)
W
Starting current A Circuit breaker rating A 32
Refrigerant control EEV Compressor type, model Mitsubishi Twin Rotary,TNB220FLHMC Fan type & quantity Propeller(direct) x 1 Fan speeds H RPM 690/600/500 Air flow H m3/hr 3300/2900/2400 Sound power level H dB(A) 68 Sound pressure level(3) H dB(A) 58 Dimensions WxHxD mm 955X700X396 Net Weight kg 59 Package dimensions WxHxD mm 1029X458X750 Packaged weight kg 64 Refrigerant type R410A
Standard charge
kg 2.2
Additional charge 20g/m(30m<L<70m)
Liquid line In.(mm) 3x1/4"(6.35) Suction line In.(mm) 3x3/8"(9.53) Max.tubing length m Max.20m for one unit and 70m for total height difference between
indoor units
m Max. 10
OUTDOOR
Connections
between units
height difference between indoor & outdoor
m Max. 10
Page 11
PRODUCT DATASHEET
Service Manual – VBZ DCI 1-A.1 GB 2-3
Model Outdoor Unit
VBZ318
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (4) kW 7.80(2.20-10.00) 8.70(2.80-11.00) Power input (4) kW 2.42(0.65-4.50) 2.40(0.98-3.95) EER (Cooling) or COP(Heating) (4) W/W 3.22 3.63 Energy efficiency class A A
V 220-240
Ph 1
Power supply
Hz 50
Rated current A 10.8 10.7
Power factor
0.97 0.97
Prated (IDU+ODU)
W Starting current A Circuit breaker rating A 32
Refrigerant control EEV Compressor type, model Mitsubishi Twin Rotary,TNB220FLHMC Fan type & quantity Propeller(direct) x 1 Fan speeds H RPM 690/600/500 Air flow H m3/hr 3300/2900/2400 Sound power level H dB(A) 68 Sound pressure level(3) H dB(A) 58 Dimensions WxHxD mm 955X700X396 Net Weight kg 60 Package dimensions WxHxD mm 1029X458X750 Packaged weight kg 65 Refrigerant type R410A
Standard charge
kg 2.2
Additional charge 20g/m(40m<L<70m)
Liquid line In.(mm) 4x1/4"(6.35) Suction line In.(mm) 4x3/8"(9.53) Max.tubing length m. Max.20m for one unit and 70m for total height difference
between indoor units
m. Max. 10
OUTDOOR
Connections
between units
height difference between indoor & outdoor
m. Max. 10
Page 12
PRODUCT DATA SHEET
2-4 Service Manual – VBZ DCI 1-A.1 GB
Model Indoor Unit
JYD009
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (4) kW 2.60 2.80
V 220-240
Ph 1
Power supply
Hz 50
Fan type & quantity Crossflow x 1
Cooling SH/H/M/L RPM 1300/1100/900/700
Fan speeds
Heating SH/H/M/L RPM 1300/1140/980/820 Air flow (1) SH/H/M/L m3/hr 600/500/350/280 External static pressure Min Pa 0 Sound power level (2) SH/H/M/L dB(A) 51/48/40/34/­Sound pressure level(3) SH/H/M/L dB(A) 41/38/30/24/­Moisture removal l/hr 0.8 Condensate drain tube I.D mm 16 Dimensions WxHxD mm 770x283x201 Net Weight kg 8 Package dimensions WxHxD mm 844x342x261
INDOOR
Packaged weight kg 11
Operation control type Remote control
Model Indoor Unit
JYD012
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (4) kW 3.50 3.80
V 220-240
Ph 1
Power supply
Hz 50
Fan type & quantity Crossflow x 1
Cooling SH/H/M/L RPM 1350/1150/950/750
Fan speeds
Heating SH/H/M/L RPM 1350/1190/1020/850 Air flow (1) SH/H/M/L m3/hr 680/560/410/300 External static pressure Min Pa 0 Sound power level (2) SH/H/M/L dB(A) 52/49/41/35/­Sound pressure level(3) SH/H/M/L dB(A) 42/39/31/25/­Moisture removal l/hr 1.5 Condensate drain tube I.D mm 16 Dimensions WxHxD mm 770x283x201 Net Weight kg 9 Package dimensions WxHxD mm 844x342x261
INDOOR
Packaged weight kg 12
Operation control type Remote control
Page 13
PRODUCT DATASHEET
Service Manual – VBZ DCI 1-A.1 GB 2-5
Model Indoor Unit
JYD018
Installation Method of Pipe Flared
Characteristics Units Cooling Heating
Capacity (4) kW 5.30 5.80
V 220-240
Ph 1
Power supply
Hz 50
Fan type & quantity Crossflow x 1
Cooling SH/H/M/L RPM 1300/1100/950/800
Fan speeds
Heating SH/H/M/L RPM 1400/1200/1050/900 Air flow (1) SH/H/M/L m3/hr 800/680/560/460 External static pressure Min Pa 0 Sound power level (2) SH/H/M/L dB(A) 55/50/47/42/­Sound pressure level(3) SH/H/M/L dB(A) 45/40/37/32/­Moisture removal l/hr 2 Condensate drain tube I.D mm 16 Dimensions WxHxD mm 865x305x215 Net Weight kg 12 Package dimensions WxHxD mm 948X383X310
INDOOR
Packaged weight kg 16
Operation control type Remote control
(1)Airflow in ducted units; at nominal external static pressure. (2)Sound power in ducted units is measured at air discharge. (3)Sound pressure level measured at 1-meter distance from unit. (4)Rating conditions in accordance to ISO 5151 and ISO 13253 (for ducted units).
Page 14
RATING CONDITIONS
3. RATING CONDITIONS ATING CONDITIONS
Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units). Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units).
Cooling: Cooling:
Indoor: 27
o
C DB 19oC WB Indoor: 27oC DB 19oC WB
Outdoor: 35
o
C DB Outdoor: 35 oC DB
Heating: Heating:
Indoor: 20
o
C DB Indoor: 20oC DB
Outdoor: 7
o
C DB 6oC WB Outdoor: 7oC DB 6oC WB
Operating Limits Operating Limits
R410AR410A
Indoor Outdoor
Upper limit 32oC DB 23oC WB 43oC DB
Cooling
Lower limit 21oC DB 15oC WB -5oC DB
Upper limit 27oC DB 24oC DB 18oC WB
Heating
Lower limit 10oC DB -15oC DB RH80%
Voltage
1-PH 50Hz 195 – 265 V
Service Manual – VBZ DCI 1-A.1 GB 3-1
Page 15
OUTLINE DIMENSION
4. OUTLINE DIMENSION NE DIMENSION
4.1 Indoor: JYD009, JYD012 4.1 Indoor: JYD009, JYD012
Service Manual – VBZ DCI 1-A.1 GB 4-1
Page 16
OUTLINE DIMENSION
4-2 Service Manual – VBZ DCI 1-A.1 GB
4.2 Indoor: JYD018
Page 17
OUTLINE DIMENSION
4.3 Outdoor: VBZ214
Service Manual – VBZ DCI 1-A.1 GB 4-3
Page 18
OUTLINE DIMENSION
4-4 Service Manual – VBZ DCI 1-A.1 GB
4.4 Outdoor: VBZ318, VBZ430
Page 19
PERFORMANCE DATA
5. PERFORMANCE DATA
5.1 VBZ214
5.1.1 Cooling Capacity (kW)
ID COIL ENTERING AIR DB/WB TEMPERATURE [C0]
OD COIL ENTERING
AIR DB
TEMPERATURE [C
0
]
DATA 22/15 24/17 27/19 29/21 32/23
TC
80 - 110 % of nominal
SC
80 - 105 % of nominal
-10 - 20
(protection range)
PI
25 - 50 % of nominal TC 4.18 4.43 4.67 4.92 5.16 SC 3.63 3.72 3.80 3.89 3.98
25
PI 0.90 0.91 0.93 0.95 0.97 TC 3.80 4.04 4.29 4.53 4.77 SC 3.44 3.53 3.62 3.70 3.79
30
PI 1.00 1.02 1.04 1.05 1.07
TC 3.41 3.66 3.90 4.14 4.39 SC 3.26 3.35 3.43 3.52 3.60
35
PI 1.10 1.12 1.14 1.16 1.18
TC 80%-92% of nominal SC 80%-92% of nominal
40(Protection Range)
PI 80%-92% of nominal TC 70%-85% of nominal SC 70%-85% of nominal
46(Protection Range)
PI 90%-100% of nominal
LEGEND
TC – Total Cooling Capacity, kW SC – Sensible Capacity, kW PI – Power Input, kW WB – Wet Bulb Temp., (
o
C)
DB – Dry Bulb Temp., (
o
C) ID Indoor OU – Outdoor
5.1.2 Capacity Correction Factors
Coolin g Capa city Ratio Vs . Outdoor Tempe r ature
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
20 25 30 35 40 45
Outdoor Temperature [deg C]
Capacity Ration
Service Manual – VBZ DCI 1-A.1 GB 5-1
Page 20
PERFROMANCE DATA
5-2 Service Manual – VBZ DCI 1-A.1 GB
5.1.3 Heating Capacity (kW)
ID COIL ENTERING AIR DB TEMPERATURE [C0]
OD COIL
ENTERING AIR
DB/WB
TEMPERATURE
[C
0
] DATA 15 20 25
TC 2.29 2.15 2.01
-15/-16 PI 0.72 0.83 0.93
TC 2.74 2.60 2.46
-10/-12 PI 0.83 0.94 1.04
TC 3.08 2.94 2.80
-7/-8 PI 0.92 1.02 1.12
TC 3.26 3.11 2.97
-1/-2 PI 0.96 1.06 1.17
TC 3.37 3.23 3.08
2/1
PI 0.98 1.09 1.19
TC 4.44 4.30 4.16
7/6
PI 1.03 1.13 1.23
TC 4.62 4.48 4.33
10/9
PI 1.07 1.18 1.28
TC 4.80 4.65 4.51
15/12
PI 1.12 1.23 1.33
15-24
TC 85 - 105 % of nominal
(Protection Range)
PI 80 - 120 % of nominal
LEGEND
TH – Total Heating Capacity, kW PI – Power Input, kW WB – Wet Bulb Temp., (
o
C)
DB – Dry Bulb Temp., (
o
C) ID Indoor OU – Outdoor
5.1.4 Capacity Correction Factors
Heating Capacit y Rati o Vs. Outdoor Temperature
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
-15 -10 -5 0 5 10 15
Outdoor WB Temperature [deg C]
Capa city Rati on
Page 21
PERFORMANCE DATA
5.2 VBZ318
5.2.1 Cooling Capacity (kW)
ID COIL ENTERING AIR DB/WB TEMPERATURE [C0]
OD COIL ENTERING
AIR DB
TEMPERATURE [C
0
]
DATA 22/15 24/17 27/19 29/21 32/23
TC
80 - 110 % of nominal
SC
80 - 105 % of nominal
-10 - 20
(protection range)
PI
25 - 50 % of nominal TC 7.30 7.72 8.15 8.57 9.00 SC 6.33 6.48 6.63 6.78 6.93
25
PI 1.66 1.69 1.73 1.76 1.79 TC 6.62 7.05 7.47 7.90 8.32 SC 6.01 6.16 6.31 6.46 6.61
30
PI 1.85 1.88 1.92 1.95 1.99
TC 5.95 6.37 6.80 7.23 7.65 SC 5.68 5.83 5.98 6.13 6.29
35
PI 2.04 2.08 2.11 2.14 2.18
TC 80%-92% of nominal SC 80%-92% of nominal
40(Protection Range)
PI 80%-92% of nominal TC 70%-85% of nominal SC 70%-85% of nominal
46(Protection Range)
PI 90%-100% of nominal
LEGEND
TH – Total Heating Capacity, kW PI – Power Input, kW WB – Wet Bulb Temp., (
o
C)
DB – Dry Bulb Temp., (
o
C) ID Indoor OU – Outdoor
5.2.2 Capacity Correction Factors
Cooling Capaci t y Rati o Vs. Outdoor Temperat ur e
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
20 25 30 35 40 45
Ou tdoor Temperature [deg C]
Capacity Rat i on
Service Manual – VBZ DCI 1-A.1 GB 5-3
Page 22
PERFROMANCE DATA
5-4 Service Manual – VBZ DCI 1-A.1 GB
5.2.3 Heating Capacity (kW)
ID COIL ENTERING AIR DB TEMPERATURE [C0]
OD COIL
ENTERING AIR
DB/WB
TEMPERATURE
[C
0
] DATA 15 20 25
TC 4.26 4.00 3.73
-15/-16 PI 1.41 1.62 1.82
TC 5.11 4.84 4.58
-10/-12 PI 1.63 1.83 2.04
TC 5.74 5.48 5.21
-7/-8 PI 1.79 1.99 2.20
TC 6.06 5.79 5.53
-1/-2 PI 1.87 2.08 2.28
TC 6.27 6.00 5.74
2/1
PI 1.93 2.13 2.33
TC 8.26 8.00 7.74
7/6
PI 2.01 2.21 2.41
TC 8.59 8.33 8.06
10/9
PI 2.10 2.30 2.51
TC 8.92 8.66 8.39
15/12
PI 2.19 2.40 2.60
15-24
TC 85 - 105 % of nominal
(Protection Range)
PI 80 - 120 % of nominal
LEGEND
TH – Total Heating Capacity, kW PI – Power Input, kW WB – Wet Bulb Temp., (
o
C)
DB – Dry Bulb Temp., (
o
C) ID Indoor OU – Outdoor
5.1.5 Capacity Correction Factors
Heating Capacity Rati o Vs. O ut door Temper at ure
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
-15 -10 -5 0 5 10 15
Outdoor WB Temperature [deg C]
Capacity Ration
Page 23
PERFORMANCE DATA
5.3 VBZ430
5.3.1 Cooling Capacity (kW)
ID COIL ENTERING AIR DB/WB TEMPERATURE [C0]
OD COIL ENTERING
AIR DB
TEMPERATURE [C
0
]
DATA 22/15 24/17 27/19 29/21 32/23
TC
80 - 110 % of nominal
SC
80 - 105 % of nominal
-10 - 20
(protection range)
PI
25 - 50 % of nominal TC 8.37 8.86 9.34 9.83 10.32 SC 7.26 7.43 7.61 7.78 7.95
25
PI 1.91 1.95 1.99 2.03 2.07 TC 7.60 8.08 8.57 9.06 9.55 SC 6.89 7.06 7.23 7.41 7.58
30
PI 2.13 2.17 2.21 2.25 2.29
TC 6.82 7.31 7.80 8.29 8.78 SC 6.52 6.69 6.86 7.04 7.21
35
PI 2.35 2.39 2.43 2.47 2.51
TC 80%-92% of nominal SC 80%-92% of nominal
40(Protection Range)
PI 80%-92% of nominal TC 70%-85% of nominal SC 70%-85% of nominal
46(Protection Range)
PI 90%-100% of nominal
LEGEND
TH – Total Heating Capacity, kW PI – Power Input, kW WB – Wet Bulb Temp., (
o
C)
DB – Dry Bulb Temp., (
o
C) ID Indoor OU – Outdoor
5.3.2 Capacity Correction Factors
Cooling Capacity Rat i o Vs. O ut door Tem perat ur e
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
20 25 30 35 40 45
Outdoor Tem perature [deg C]
Capacity Ration
Service Manual – VBZ DCI 1-A.1 GB 5-5
Page 24
PERFROMANCE DATA
5-6 Service Manual – VBZ DCI 1-A.1 GB
5.3.3 Heating Capacity (kW)
ID COIL ENTERING AIR DB TEMPERATURE [C0]
OD COIL
ENTERING AIR
DB/WB
TEMPERATURE
[C
0
] DATA 15 20 25
TC 4.63 4.35 4.06
-15/-16 PI 1.54 1.76 1.98
TC 5.55 5.27 4.98
-10/-12 PI 1.77 1.99 2.21
TC 6.24 5.95 5.67
-7/-8 PI 1.94 2.17 2.39
TC 6.59 6.30 6.01
-1/-2 PI 2.03 2.25 2.47
TC 6.82 6.53 6.24
2/1
PI 2.09 2.31 2.53
TC 8.99 8.70 8.41
7/6
PI 2.18 2.40 2.62
TC 9.34 9.06 8.77
10/9
PI 2.28 2.50 2.72
TC 9.70 9.42 9.13
15/12
PI 2.38 2.60 2.82
15-24
TC 85 - 105 % of nominal
(Protection Range)
PI 80 - 120 % of nominal
LEGEND
TH – Total Heating Capacity, kW PI – Power Input, kW WB – Wet Bulb Temp., (
o
C)
DB – Dry Bulb Temp., (
o
C) ID Indoor OU – Outdoor
5.3.4 Capacity Correction Factors
Heating Capacity Ratio Vs. O ut door Temperat ure
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
-15 -10 -5 0 5 10 15
Outdoor W B Temperature [deg C]
Capa city Ratio n
Page 25
PRESSURE CURVES
Service Manual – VBZ DCI 1-A.1 GB 6-1
6. PRESSURE CURVES
6.1 Model: VBZ214
6.1.1 Cooling
2.50
3.00
3.50
4.00
4.50
5.00
5.50
6.00
6.50
7.00
10 15 20 25 30 35 40 45
Outdoor DB Tempera ture
In put Curren t [
A
]
22/15
24/17
27/19
29/21
32/23
1500
1750
2000
2250
2500
2750
3000
3250
3500
3750
10 15 20 25 30 35 40 45
Outdoor DB Te m perature
Discharge Pressure [kPa]
22/15
24/17
27/19
29/21
32/23
Indoor
DB/WB
700
800
900
1000
1100
1200
1300
1400
10 15 20 25 30 35 40 45
Outdoor DB Temperature
Suction Pressure [kPa]
22/15
24/17
27/19
29/21
32/23
Indoor
DB/WB
Page 26
PRESSURE CURVES
6-2 Service Manual – VBZ DCI 1-A.1 GB
6.1.2 Heating
400
500
600
700
800
900
1000
1100
-15 -10 -5 0 5 10 15
Outdoor WB Temperature
Suction P ressu r e [kP a]
15
20
25
1500
1750
2000
2250
2500
2750
3000
3250
-15 -10 -5 0 5 10 15
Outdoor WB Temperature
Disch arge Pressure [kPa]
15
20
25
Indoor DB
3.00
3.50
4.00
4.50
5.00
5.50
6.00
6.50
7.00
-15 -10 -5 0 5 10 15
Outdoor WB Temperature
Input Current [A]
15
20
25
Indoor DB
Page 27
PRESSURE CURVES
Service Manual – VBZ DCI 1-A.1 GB 6-3
6.2 Model: VBZ318
6.2.1 Cooling
6.00
6.50
7.00
7.50
8.00
8.50
9.00
9.50
10.00
10.50
11.00
11.50
12.00
12.50
13.00
10 15 20 25 30 35 40 45
Outdoor DB Temperature
Inpu t Current [A]
22/15
24/17
27/19
29/21
32/23
1500
1750
2000
2250
2500
2750
3000
3250
3500
3750
4000
10 15 20 25 30 35 40 45
Outdoor DB Te m perature
Discharg e P r essu re [kP a]
22/15
24/17
27/19
29/21
32/23
Indoor
DB/WB
700
800
900
1000
1100
1200
10 15 20 25 30 35 40 45
Outdoor DB Temperature
Suction Pressure [kPa]
22/15
24/17
27/19
29/21
32/23
Indoor
DB/WB
Page 28
PRESSURE CURVES
6-4 Service Manual – VBZ DCI 1-A.1 GB
6.2.2 Heating
300
400
500
600
700
800
900
1000
1100
-15 -10 -5 0 5 10 15
Outdoor WB Temperature
Suction P ressu r e [kP a]
15
20
25
1500
1750
2000
2250
2500
2750
3000
3250
-15 -10 -5 0 5 10 15
Outdoor WB Temperature
Disch arge Pressure [kP a]
15
20
25
Indoor DB
6.00
6.50
7.00
7.50
8.00
8.50
9.00
9.50
10.00
10.50
11.00
11.50
12.00
12.50
13.00
-15 -10 -5 0 5 10 15
Outdoor WB Temperature
Input Current [A]
15
20
25
Indoor DB
Page 29
PRESSURE CURVES
Service Manual – VBZ DCI 1-A.1 GB 6-5
6.3 Model: VBZ430
6.3.1 Cooling
7.00
7.50
8.00
8.50
9.00
9.50
10.00
10.50
11.00
11.50
12.00
12.50
13.00
13.50
14.00
14.50
15.00
10 15 20 25 30 35 40 45
Outdoor DB Temperature
Inpu t Current [A]
22/15
24/17
27/19
29/21
32/23
1500
1750
2000
2250
2500
2750
3000
3250
3500
3750
4000
10 15 20 25 30 35 40 45
Outdoor DB Te m perature
Discharg e P r essu re [kP a]
22/15
24/17
27/19
29/21
32/23
Indoor
DB/WB
700
800
900
1000
1100
1200
10 15 20 25 30 35 40 45
Outdoor DB Temperature
Suction Pressure [kPa]
22/15
24/17
27/19
29/21
32/23
Indoor
DB/WB
Page 30
PRESSURE CURVES
6-6 Service Manual – VBZ DCI 1-A.1 GB
6.3.2 Heating
300
400
500
600
700
800
900
1000
1100
-15 -10 -5 0 5 10 15
Outdoor WB Temperature
Suction Pressure [kPa]
15
20
25
1500
1750
2000
2250
2500
2750
3000
3250
-15 -10 -5 0 5 10 15
Outdoor WB Temperature
Discharge Pr essure [kPa]
15
20
25
Indoor DB
7.00
7.50
8.00
8.50
9.00
9.50
10.00
10.50
11.00
11.50
12.00
12.50
13.00
13.50
14.00
14.50
15.00
-15 -10 -5 0 5 10 15
Outdoor WB Temperature
Inp u t Current [A]
15
20
25
Indoor DB
Page 31
SOUND LEVEL CHARACTERISTICS
7. SOUND LEVEL CHARACTERISTICS CHARACTERISTICS
7.1 Sound Pressure Level 7.1 Sound Pressure Level
7.2 Sound Pressure Level Spectrum (Measured as Figure 1)
JYD009 Cooling JYD009 Heating
Nois e spectrum & NC Curves
NC15
NC20
NC25
NC30
NC35
NC40
NC45
NC50
NC55
NC60
NC65
0
10
20
30
40
50
60
70
80
90
63 125 250 500 1000 2000 4000 8000
Oc tave Band Center Frequencies [Hz]
Octave Band Sound Pressure L evel [d B r e 20 mPa]
Noi se spectrum & NC Curves
NC15
NC20
NC25
NC30
NC35
NC40
NC45
NC50
NC55
NC60
NC65
0
10
20
30
40
50
60
70
80
90
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequencies [Hz]
Octave Band Sound Pressure Level [d B r e 20 mPa]
FAN SPEED LINE
HI
ME
LO
Service Manual – VBZ DCI 1-A.1 GB 7-1
Page 32
SOUND LEVEL CHARACTERISTICS
7-2 Service Manual – VBZ DCI 1-A.1 GB
JYD012 Cooling JYD012 Heating
Nois e spectrum & NC Curves
NC15
NC20
NC25
NC30
NC35
NC40
NC45
NC50
NC55
NC60
NC65
0
10
20
30
40
50
60
70
80
90
63 125 250 500 1000 2000 4000 8000
Oc tave Band Center Frequencies [Hz]
Octave Band Sound Pressure L evel [d B r e 20 mPa]
Noi se spectrum & NC Curve s
NC15
NC20
NC25
NC30
NC35
NC40
NC45
NC50
NC55
NC60
NC65
0
10
20
30
40
50
60
70
80
90
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequencies [Hz]
Octave Band Sound Pressure Level [d B r e 20 mPa]
FAN SPEED LINE
HI
ME
LO
JYD018 Cooling JYD018 Heating
Noise spectrum & NC Curves
NC15
NC20
NC25
NC30
NC35
NC40
NC45
NC50
NC55
NC60
NC65
0
10
20
30
40
50
60
70
80
90
63 125 250 500 1000 2000 4000 8000
Octave Band Center Frequencies [Hz]
Octave Band So u n d Pr essu re L evel [d B r e 20 mPa]
Noi se spectrum & NC Curves
NC15
NC20
NC25
NC30
NC35
NC40
NC45
NC50
NC55
NC60
NC65
0
10
20
30
40
50
60
70
80
90
63 125 250 500 1000 2000 4000 8000
Oc tave Band Center Frequencies [Hz]
Octave Band Sound Pressure Level [d B re 20 mPa]
FAN SPEED LINE
HI
ME
LO
Page 33
ELECTRICAL DATA
8. ELECTRICAL DATA DATA
MODEL MODEL VBZ214 VBZ214 VBZ318 VBZ318 VBZ430 VBZ430
To outdoor
Power Supply
1PH-220-240V-50Hz
Max Current, A 15A 21A 21A
Circuit Breaker, A 25A 32A 32A
Power Supply Wiring No. X Cross Section mm
2
3x2.5 mm
2
3x4.0mm2 3x4.0mm2
Interconnecting Cable Model No. X Cross Section mm
2
4x1.0 mm
2
4x1.0 mm2 4x1.0 mm2
NOTE
Power wiring cord should comply with local laws and electrical regulations requirements.
Service Manual – VBZ DCI 1-A.1 GB 8-1
Page 34
WIRING DIAGRAM
9. WIRING DIAGRAM WIRING DIAGRAM
9.1 JYD009, JYD012 9.1 JYD009, JYD012
9.2 JYD018
Service Manual – VBZ DCI 1-A.1 GB 9-1
Page 35
WIRING DIAGRAM
9-2 Service Manual – VBZ DCI 1-A.1 GB
9.3 YAZ214
Page 36
WIRING DIAGRAM
9.4 YAZ318
Service Manual – VBZ DCI 1-A.1 GB 9-3
Page 37
WIRING DIAGRAM
9-4 Service Manual – VBZ DCI 1-A.1 GB
9.5 YAZ430
Page 38
WIRING DIAGRAM
9.6 Wiring connection between IDU and ODU
Service Manual – VBZ DCI 1-A.1 GB 9-5
Page 39
WIRING DIAGRAM
10. REFRIGERATION DIAGRAMS
Service Manual – VBZ DCI 1-A.1 GB 10-1
Page 40
TUBING CONNECTIONS
11. TUBING CONNECTIONS TUBING CONNECTIONS
Service Manual – VBZ DCI 1-A.1 GB 11-1
Page 41
CONTROL SYSTEM
12. CONTROL SYSTEM
12.1 Electronic Control
12.1.1 Abbreviations
Abbreviation Definition
A/C
Air Condition
BMS
Building Management System
PWR
System Power
CTT
Compressor Top Temperature sensor
DCI
DC Inverter
EEV
Electronic Expansion Valve
HE
Heating Element
HMI
Human Machine Interface
HST
Heat Sink Temperature sensor
Hz
Hertz (1/sec) – electrical frequency
ICT
Indoor Coil Temperature (RT2) sensor
IDU
Indoor Unit
MCU
Micro Controller Unit
OAT
Outdoor Air Temperature sensor
OCT
ODU Coil Temperature sensor
ODU
Outdoor Unit
OFAN
Outdoor Fan
PFC
Power Factor Corrector
RAC
Residential A/C
RC
Reverse Cycle (Heat Pump)
RGT
Return Gas Temperature sensor
RPS
Rounds per second (mechanical speed)
RV
Reverse Valve
SB,STBY
Stand By
SUCT
Compressor Suction Temperature sensor
S/W
Software
TBD
To Be Defined
TMR
Timer
Service Manual – VBZ DCI 1-A.1 GB 12-1
Page 42
CONTROL SYSTEM
12-2 Service Manual – VBZ DCI 1-A.1 GB
12.1.2 Compressor Frequency Control
12.1.2.1 Compressor frequency setting
The Load calculation is done by each indoor unit controller, based on a PI control scheme which
is based on the difference between SPT and RAT.
ODU controller will decide the compressor frequency based on the total load from all the indoors.
Compressor frequency will be limited within following ranges:
Minimum Frequency (MinFreq)
Maximum Frequency (MaxFreq) *
Mode
VBZ214 VBZ318 VBZ430 VBZ214 VBZ318 VBZ430 Cooling 15 15 15 110 110 110 Heating 15 15 15 110 110 110
* Maximum frequency is also decided by different indoor combinations.
12.1.2.2 Frequency Changes Control
Frequency change rate is 1 Hz/sec.
12.1.2.3 Compressor Starting Control
30Hz
40Hz
50Hz
60Hz
70Hz
80Hz
90Hz
1min 2min 2min
12.1.2.4 Minimum On and Off Time
Prohibit turning ON the compressor for 3 minutes after turning it off. (Except during deicing protection) Prohibit turning OFF the compressor for 7 minutes after turning it on (except protections required immediate compressor stop)
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CONTROL SYSTEM
Service Manual – VBZ DCI 1-A.1 GB 12-3
12.1.3 Indoor Fan Control
8 Indoor fan speeds are determined for each model. 4 speeds for COOL modes and 4 speeds for HEAT mode.
Unit Model Mode Turbo(Super high) High Medium Low
Cooling 1300 1100 900 700 09 Heating 1300 1140 980 820 Cooling 1350 1150 950 750 12 Heating 1350 1190 1020 850 Cooling 1350 1100 950 800 18 Heating 1400 1200 1050 900
In high/ medium/ low indoor fan user setting, unit will operate fan in selected speed.
In Auto Fan user setting, fan speed will be adjusted automatically according to the difference between actual room temperature (RAT) and user set point temperature (SPT).
Indoor Fan speed High Medium Low
Cooling >=2 (0,2) <=0
RAT-SPT
Heating <=1 (1,3) >=3
During Auto Fan operating, one speed should keep at least 210sec operating before switching to other speeds. In DRY mode, the automatic fan speed is forced to be low.
12.1.3.1 Turbo Speed
In COOL and HEAT mode (not available in AUTO, DRY, FAN mode), press the Turbo button, the super high fan speed is selected on Remote control and the indoor fan rotates at super high speed.
12.1.4 Outdoor Fan Control
The outdoor fan motor is a 3 speed AC motor and controlled by the relays on outdoor controller. OFAN speed will be changed according to OAT temperature.
12.1.5 EEV Control
12.1.5.1 EEV homing
When compressor stops or unit is power on, the following is performed immediately:
- All EEV’s are closed 520 steps and then set this opening as 0 step.
- Then All EEVs are opened 480 steps and ready for system staring.
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CONTROL SYSTEM
12-4 Service Manual – VBZ DCI 1-A.1 GB
12.1.5.2 EEV initial value determination
The EEV initial value (open loop) is determined according to the number of the active indoor units, mode, and the capacity code of the unit.
12.1.5.3 Balance time
During the balance after SB the correction is not calculated. After that the correction value is
updated every 5 seconds.
12.1.5.4 EEV corrections
The corrections will keep the compressor in the proper operation temperature (Target CTT control) and will balance between the indoor units by controlling their super heat.
12.1.5.5
EEV opening of inactive indoors
Under Cool Mode/Dry Mode, relative EEV of inactive indoor will be fully closed to 0. Under Heat Mode, relative EEV of inactive indoor will maintain an opening in a range so that refrigerant and oil can come back to outdoor.
12.1.6 Reversing Valve (RV) Control
Reversing valve is on in heat mode. Switching of RV state is done only after compressor is OFF for over 2 minutes.
12.2 Fan Mode
In this mode, the indoor fan may run at high, medium, low and automatic speed. The compressor, outdoor fan and 4-way valve will be OFF. In this mode, the range of setting temperature is 16~30C
12.3 Cool Mode
12.3.1 Starting Cool Mode
If the system is in idle, when any one indoor requests the cooling mode operating, the system will run in Cool Mode. EEV, OFAN and compressor will start operating.
12.3.2 Compressor’s action w hen Indoor changed to inactive (OFF or Thermo OFF)
12.3.2.1 All indoors to inactive
Compressor stops immediately, OFAN stops after 1 min.
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CONTROL SYSTEM
Service Manual – VBZ DCI 1-A.1 GB 12-5
12.3.2.2 Partial indoors to inactive
Recalculate the load immediately, for Inactive indoors, EEV opening is set to 0 step.
12.3.3 RV
RV is OFF in Cool Mode.
12.3.4 OFAN control during Cool Mode
OFAN will start 5sec before compressor start. After starting, it will run at High speed for 3 mins, and then switch to the requested speed. OFAN will run at one speed for at least 80sec, except the condition of the active indoor amount changing. After compressor stopping, the OFAN will keep the current speed for 1min and then stop.
12.3.5 Oil return operation during Cool Mode
12.3.5.1 Starting oil return
Oil return operation is to avoid compressor operating with low frequency for long time.
12.3.5.2 Oil return operation
Indoor display shows “H1” Compressor is forced to run higher frequency.
12.3.5.3 Exiting oil return
The oil return operating time reaches 5min (Including frequency’s changing time)
12.3.6 Indoor Fan operation under Cool Mode
In manual fan speed (Turbo/Hi/Med/low) setting, IFAN will operate at the setting speed.
In Auto Fan user setting, fan speed will be adjusted automatically according to the SPT and RAT, refer to 12.1.3
12.4 Heat Mode
12.4.1 Condition of starting Heat Mode
If the system is in idle, when any one indoor request the heating mode operating, the system will run in Heat Mode. EEV, OFAN and compressor will start operating.
12.4.2 Compressor’s action w hen Indoor changed to inactive (OFF or Thermo OFF)
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CONTROL SYSTEM
12-6 Service Manual – VBZ DCI 1-A.1 GB
12.4.2.1 All indoors to inactive
Compressor stops immediately, OFAN stops after 1 min.
12.4.2.2 Partial indoors to inactive
Recalculate the load immediately, for Inactive indoors, EEV opening will follow 12.1.5.5.
12.4.3 OFAN control during Heat Mode
OFAN will start 5sec before compressor starts. After starting, it will run at High speed for 40 sec then switch to the requested speed. OFAN will run at one speed for at least 80sec. After compressor stopping, the OFAN will keep the current speed for 1min and then stop.
12.4.4 Oil return operation during Heat Mode
12.4.4.1 Starting oil return
Oil return operation is to avoid compressor operating with low frequency for long time.
12.4.4.2 Oil return operation
Indoor display shows “H1” System will run at Cool Mode. Compressor is forced to run higher frequency. And both IFAN and OFAN are stopped.
12.4.4.3 Exiting oil return
The oil return operating time reaches 5min (Including frequency’s changing time)
12.4.5 Indoor Fan Control in Heat Mode
Indoor fan speed depends on the indoor coil temperature
Anti-cold air function
When starting the heating mode, anti-cold air function will be activated and indoor fan can run at low speed or stop running. This function will terminate after the unit runs for 3min or the ICT reaches 42 degree.
Residual heat blowing function
During heating, when the stopping condition for the compressor is reached, the compressor and the outdoor fan motor stop running while the louver moves to position L. The indoor fan will stop after running for 60s at setting speed.
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CONTROL SYSTEM
Service Manual – VBZ DCI 1-A.1 GB 12-7
12.5 8 Degree Heat Mode
Under heat mode, press “Save” button, the system will enter into 8 Degree Heat Mode.
1. 8 Degree Heat Mode can not exist together with Sleep mode. If Sleep Mode is selected, 8
degree Heat Mode will be canceled.
2. The SPT will be 8 degree and display will show the SPT,
3. Under this mode, IFAN can not be changed manually (Including Turbo speed)
4. Under this mode, IFAN will operate as following table when compressor is ON. When
compressor stops, IFAN will operate as “Residual heat blowing function” (refer to 12.4.5)
Indoor Fan speed High Medium Low
RAT <=9 (9,11) >=11
One speed should keep at least 210sec operating before switching to other speeds.
12.6 Auto Cool/Heat Mode
In AUTO mode, the system selects the running mode (COOL/HEAT/FAN) automatically according to the room temperature. The display shows the actual running mode and setting temperature. There will be 30s delay for mode conversion.
1. When RAT≥26 degree, the cooling mode is selected.
2. When RAT22 degree, the unit runs in heating mode
3. When 22 degree <RAT< 26 degree, upon initial startup, the unit will enter auto mode and run in
automatic fan mode. If the other mode changes into auto mode, the previous running mode will remain. (Except from Dry Mode, system will run in automatic fan mode)
12.7 Dry Mode
Dry Mode is same as Cool Mode in EEV, OFAN and compressor control except following:
1) IFAN will be forced to Low speed.
2) For indoor working under Dry mode, Max capacity output is 90% of Cool Mode
In this mode, the Reverse Valve will be OFF and the temperature setting range is 16~30.
12.8 Protections
There are 4 protection codes. Normal (Norm) – unit operate normally. Stop Rise (SR) – compressor frequency can not be raised but does not have to be decreased. HzDown – Compressor frequency is reduced by 1Hz/s (2Hz/s for current protection) Stop Compressor (SC) – Compressor is stopped.
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CONTROL SYSTEM
12-8 Service Manual – VBZ DCI 1-A.1 GB
12.8.1 Mode confliction
When there are different mode settings among active indoors:
a. First request priority:
The first IDU which requests different mode than STBY mode will set the new operation mode. Mode confliction will be decided comparing with other IDUs’ modes. Cool (Dry) mode is conflict to Heat mode. The mode will change once all the units exit the current operation mode.
b. Fan mode is conflict to Heat mode:
Heat Mode is the priority mode, Fan Mode is conflict to Heat Mode no matter the IDU is first IDU or not. The indoor will run in Heat Mode.
When the current IDU operating mode is conflict to other IDUs under operating, the current IDU:
1. IDU display will show “E7”.
2. The operating mode is still transferred to the outdoor unit.
12.8.2 Indoor Coil Defrost Protection
During cooling operation, the signals being sent from the indoor unit allow the operating frequency limitation and then prevent freezing of the indoor heat exchanger.
Compressor will stop when ICT <= -1C for continuous 10sec.
If the unit stops as such protection for 6 times (the counter will be cleared after the compressor has
run for 7min), it can not resume running automatically and display malfunction, it can resume by
power reset.
12.8.3 Indoor/Outdoor Coil over Heating Protection
During heating operation, the signals being sent from the indoor unit/outdoor allow the operating frequency limitation and prevent abnormal high pressure. Compressor frequency will be reduced when ICT/OCT reaches above 58C Compressor will stop when ICT/OCT reaches 65C
If the unit stops as such protection for 6 times (the counter will be cleared after the compressor has
run for 7min), it can not resume running automatically and display malfunction, it can resume by
power reset.
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CONTROL SYSTEM
Service Manual – VBZ DCI 1-A.1 GB 12-9
12.8.4 Compressor over Heating Protection
The Discharging temperature is used as the compressor’s internal temperature. If the discharge temperature rises above a certain level, the operating frequency upper limit is set to keep this temperature from going up further.
Compressor frequency will be reduced when CTT reaches above 97C Compressor will stop when CTT reaches 110C
If the unit stops as such protection for 6 times (the counter will be cleared after the compressor has
run for 7min), it can not resume running automatically and display malfunction, it can resume by
power reset.
12.8.5 Compressor over Current Protection
Detect an input current by the CT during the compressor is running, and set the frequency upper limit from such input current. In case of heat pump model, this control is the upper limit control function of the frequency which takes priority of the lower limit of four way valve activating compensation. Detail
For model 14: Compressor will stop when AC current >= 16.0A for continuously 2.5s For model 18/30: Compressor will stop when AC current >= 20.0A for continuously 2.5s
If the unit stops as such protection for 6 times (the counter will be cleared after the compressor has run for 7min), it can not resume running automatically and display malfunction, it can resume by power reset.
12.8.6 Outdoor Coil Deicing Protection
This protection is for Heat Pump Only This protection is carried out by the cooling cycle (reverse cycle). The defrosting time or outdoor heat exchanger temperature must be more than its setting values when finishing the deicing protection. In the deicing protection, IFAN is forced OFF.
12.8.6.1 Deicing Starting Conditions
The starting conditions must be made with the outdoor air temperature (OAT) and outdoor coil temperature (OCT). Under the conditions that the system is in heating operation, after the time for defrosting is judged to be satisfied, if the temperature for deicing is satisfied after detections for continuous 1 minute, the deicing operation will start.
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CONTROL SYSTEM
12-10 Service Manual – VBZ DCI 1-A.1 GB
Deicing interval time is changed as a function of deicing time. If deicing time is shorter than former deicing time, the deicing interval time will be increased. If deicing time is longer than former deicing time, the deicing interval time will be decreased.
12.8.6.2 Deicing Protection Procedure
When starting deicing from Heat Mode, system will work as following:
1). Compressor stops. OFAN and RV will be OFF after 40s
3). Compressor starts and deicing time is counted. Compressor frequency will go to Deicing Frequency.
12.8.6.3 Exiting Deicing
System will exit the deicing until OCT reaches to certain value (depends on OAT) or the deicing time reaches 12 min as maximum.
12.8.7 Communication malfunction
Connected IDU number detection If ODU does not receive correct signal from one IDU for 3min continuously, the ODU will take this IDU as not connected one. But ODU will still send the broadcast to this IDU. If response were received, then ODU will take it as connected.
12.8.8 IPM module protection
When the compressor starts, if there is over current or control voltage low for IPM module as some abnormal results, IPM will detect module protection signal as the unit is on. Once the module protective signal is detected, stop the unit with module protection immediately. If the module protection is resumed and compressor has stopped for 3min, the unit will be allowed to operate.
If the module protection continuously occurs for 6 times (the counter will be cleared after the
compressor has run for 7min), it can not resume running automatically and display malfunction, it
can resume by power reset.
12.8.9 HP switch protection
If the HP switch is opened for 3S continuously, the system will stop as protection
After the HP switch protection, if HP switch is resumed for continuous 6s, the system operating can be resumed by power reset.
12.8.10 Module overheating protection
If the module temperature is higher than 95C, the unit will stop. If module temperature is lower than 95C, and compressor has stopped for 3min, the unit will resume operating. If the unit stops as module overheating protection for 6 times (the counter will be cleared after the
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CONTROL SYSTEM
compressor has run for 7min), it can not resume running automatically and display malfunction, it
can resume by power reset.
12.8.11 Compressor overload protection
If the compressor OLP is opened, the system will stop as protection If the OLP is resumed and compressor has stopped for 3min, the unit will be allowed to operate.
If the unit stops as compressor overload protection occurred for 6 times continuously (the
counter will be cleared after the compressor has run for 30min), it can not resume running
automatically and display malfunction, it can resume by power reset.
12.8.12 Compressor Phase protection
If any phase is detected open when compressor starting, the system will stop as protection. The protection will be cleared after 1 min and system will try to restart. If the unit stops as Phase protection for 6 times (the counter will be cleared after the compressor
has run for 7min), it can not resume running automatically and display malfunction, it can resume by
power reset.
12.9 Operating the Unit from the ON/OFF Button
The ON/OFF button allows to operate the unit in AUTO mode, the microcomputer will monitor the room temperature and select the (COOL, HEAT, FAN) mode automatically, and temperature/Fan speed settings can not be changed.
12.10 Indoor Unit Controllers and Indicators
The following is schematic drawing for the display:
RUN INDICATOR
1. Lights up when the Air Conditioner is connected to power and
Service Manual – VBZ DCI 1-A.1 GB 12-11
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CONTROL SYSTEM
12-12 Service Manual – VBZ DCI 1-A.1 GB
the mode is STBY.
2. When the unit is turned on remotely, the RUN LED goes out
while the current setting running mode is displayed
COOL INDICATOR DRY INDICATOR HEAT INDICATOR
1. Lights up during specified operation mode (COOL/DRY/HEAT).
2* 7 segments display 1. In normal situation, the setting temperature is displayed.
2. Shows outdoor temperature or indoor temperature when
receiving the corresponding demand from controller. It resumes displaying setting temperature 5s later
3. Shows H1 during deicing in heating mode.
4. Shows the alarm code whenever there is an alarm.(Refer to
Diagnostic part)
Unit ON/OFF Button
Single pressing: Unit will switch between Auto mode and STBY.
System will select the COOL/HEAT/FAN mode automatically and temperature/Fan speed settings can not be changed.
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CONTROL SYSTEM
Service Manual – VBZ DCI 1-A.1 GB 12-13
12.10.1 Installation Test
Installation test is to check any mistake in communication wiring or EEV wiring connections.
Start Installation Test: RC setting: SPT=30, Cool Mode and press the button “-, +,-, +,-, +” continuously in 3 sec.
Unit operation during Installation test: Unit will operate in cool mode (IFAN will stop), IDU will display “dd”. Total operating time depends on IDU numbers, for each IDU maximum operating time is 3min.
Finish the Installation test: IDU will cancel displaying “dd”, and will display “dn” if any mistake of communication wiring or EEV wiring is detected from ODU.
12.11 Forced Deicing
Start Forced Deicing
Under Heat Mode, RC setting with SPT=16, and press the button “+,-,+,-,+,-” continuously in 5 sec. The Forced Deicing request will be sent to ODU.
After ODU received the Forced Deicing request, IDU will cancel the setting and request of Forced Deicing
System operation will follow 12.8.6.2 and 12.8.6.3 during Forced Deicing.
12.12 Forced Mode (Compulsory operating function).
Entering into forced mode :
After the unit is powered for 5mins, press the light button on remote controller for 3 times in 3s successively to enter into Freon recovery mode. “Fo” will be displayed. When Freon recovery mode operated for 25mins, all loads will operate in cooling mode. (The setting fan speed is high fan speed and the setting temperature is 16C )
Exiting forced mode:
Any signal from remote controller or button will exit the forced mode, and then the unit will operate at the current setting command. Forced mode will also be exited after operating for 25mins and then the unit will operate with the
last operating mode.
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TROUBLESHOOTING
13. TROUBLESHOOTING
13.1 ELECTRICAL & CONTROL TROUBLESHOOTING
13.1.1
Precautions before Performing Inspection or Repair
Be cautious during installation and maintenance. Do operation following the regulations to avoid electric shock and casualty or even death due to drop from high attitude.
* Static maintenance is the maintenance during de-energization of the air conditioner.
For static maintenance, make sure that the unit is de-energized and the plug is disconnected.
*Dynamic maintenance is the maintenance during energization of the unit. Before dynamic
maintenance, check the electricity and ensure that there is ground wire on the site. Check if there is electricity on the housing and connection copper pipe of the air conditioner with voltage tester. After ensure insulation place and the safety, the maintenance can be performed.
Take sufficient care to avoid directly touching any of the circuit parts without first turning off the power. At time such as when the circuit board is to be replaced, place the circuit board assembly in a vertical position. Normally, diagnose troubles according to the trouble diagnosis procedure as described below.(Refer to the check points in servicing written on the wiring diagrams attached to the indoor/outdoor units.)
Precautions when inspecting the control section of the outdoor unit:
A large-capacity electrolytic capacitor is used in the outdoor unit controller (inverter).Therefore, if the power supply is turned off, charge(charging voltage DC280V to 380V)remains and discharging takes a lot of time. After turning off the power source, if touching the charging section before discharging, an electrical shock may be caused. The outdoor unit can not be started up until the unit is de-energized for 20min
13.1.2 Confirmation
13.1.2.1 Confirmation of Power Supply Confirm that the power breaker operates(ON) normally;
13.1.2.2 Confirmation of Power Voltage Confirm that power voltage is AC220~240V +/­10%. If power voltage is not in this range, the unit may not operate normally.
Service Manual – VBZ DCI 1-A.1 GB 13-1
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TROUBLESHOOTING
13-2 Service Manual – VBZ DCI 1-A.1 GB
13.1.3 Fault Code display from ODU
The ODU will show the active fault code by its LED1, LED2, LED3 and LED4.
When more than one active fault codes exist, each fault code will display in 5s interval.
– LED OFF, – LED ON, ☆ – LED Blinking
No. Fault code LED1 LED2 LED3 LED4
0 STBY
1 Operation (COMP ON)
2 Stop for compressor OLP protection
3 Stop for compressor over heating protection
4 Stop for ODU over heating protection
5 Stop for HP switch protection
6 Stop for AC over current protection
7 IPM protection
8 IPM overheating protection
9 PFC protection
10 Stop for DC over current protection
11 DC over Voltage protection
12 DC under Voltage protection
13 Compressor startup failure
14 Desynchronizing of compressor
15 Lack phase protection of compressor
16 Compressor phase current detection problem
17 EEPROM failure
18 DC power circuit short
19 Deicing
20 Oil return
21 Compressor Stop Rise
22 Compressor Hz Down
23 Stop Rise/Hz down from IDU-A
24 Stop Rise/Hz down from IDU-B
25 Stop Rise/Hz down from IDU-C
26 Stop Rise/Hz down from IDU-D
27 OAT failure
28 OCT failure
29 CTT failure
30 HST failure
31 RLT-A failure
32 RGT-A failure
33 RLT-B failure
34 RGT-B failure
35 RLT-C failure
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TROUBLESHOOTING
Service Manual – VBZ DCI 1-A.1 GB 13-3
36 RGT-C failure
37 RLT-D failure
38 RGT-D failure
39 IDU-A mode conflict
40 IDU-B mode conflict
41 IDU-C mode conflict
42 IDU-D mode conflict
43 Chanel-A communication malfunction
44 Chanel-B communication malfunction
45 Chanel-C communication malfunction
46 Chanel-D communication malfunction
47 IDU-A defrost protection
48 IDU-B defrost protection
49 IDU-C defrost protection
50 IDU-D defrost protection
51 IDU-A overheating protection
52 IDU-B overheating protection
53 IDU-C overheating protection
54 IDU-D overheating protection
Page 57
TROUBLESHOOTING
13-4 Service Manual – VBZ DCI 1-A.1 GB
13.1.4 Fault Code display from IDU
If the malfunction still exists 4min later after stop of unit due to compressor protection, error code will be
directly displayed though indoor display. In other situations, fault code can be displayed by pressing
LIGHT button 6 times within 4s.
Fault code can be displayed on 2*7 segments or by the LEDs blinking (OFF for 3s and then with certain
blinking as following)
LEDs blinking
Fault description
2* 7
segments
RUN COOL HEAT
Possible Reason
HP switch protection E1 1
1. Refrigerant was superabundant
2. Poor heat exchange (including blockage and bad radiating environment )
3. Too high ambient temperature
Indoor coil defrost Protection E2 2
1. Poor air-return in indoor unit
2. Fan speed is abnormal
3. Evaporator is dirty.
Compressor over Heating Protection
E4 4
1. EEV connection problem or damage
2. Refrigerant leakage
3. Poor heat exchange
A
C Over current protection E5 5
1. Supply voltage is unstable
2. Supply voltage is too low and load is too high
Communication malfunction E6 6
1. Wiring mistakes
2. IDU or ODU PCB problem
Mode conflict E7 7 Mode conflict to other IDU
Indoor coil/Outdoor coil over heating protection
E8 8
1. Too high ambient temperature
2. Poor heat exchange (including blockage and bad radiating environment )
No feedback of indoor motor H6 11
1. IFAN motor damaged
2. IFAN motor blocked
3. IDU PCB problem
Malfunction protection of jumper cap
C5 15 Poor connection of the jumper on indoor PCB.
Zero-crossing protection (IDU) U8 17
1. IFAN motor damaged
2. Zero-crossing circuit damaged on IDU PCB
Mismatch of IDU and ODU LP 19 RAT failure F1 1 ICT failure F2 2 OAT failure F3 3 CTT failure F5 5
1. Senor was broken or damaged
2. PCB temperature detection circuit has problem
DC over voltage PH 11
1. AC input voltage is too high.
2. Reactor has problem
3. ODU PCB has problem
OCT failure F4 18 RLT failure b5 19 RGT failure b7 22
1. Senor was broken or damaged
2. PCB temperature detection circuit has problem
Compressor overload protection H3 3
1. EEV connection problem or damaged
2. Refrigerant leakage
3. OLP damaged
IPM protection H5 5
1. Abnormal power input voltage.
2. Compressor wiring mistake.
3. Liquid and gas valve are not open.
4. EEV damaged or not proper working
5. Poor heat exchange.
6. Over charged system.
PFC protection HC 6 1. PFC module assembly problem.
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TROUBLESHOOTING
Service Manual – VBZ DCI 1-A.1 GB 13-5
2. Poor heat exchange of Heatsink
3. PFC reactor problem.
4. Abnormal power voltage
5. PFC circuit problem on PCB
Desynchronizing of compressor H7 7
1. Abnormal power input voltage.
2. Compressor wiring mistake.
3. Liquid and gas valve are not open.
4. EEV damaged or not proper working
5. Poor heat exchange.
6. Over charged system.
Compressor start-up failure Lc 11
1. Compressor wiring mistake
2. Over charged system
3. System not balanced before compressor starting
4. Compressor problem
Compressor phase current detection problem
U1 12
Phase current detection circuit for compresso
r
has problem.
DC over current P5 15
1. Abnormal power input voltage.
2. Compressor wiring mistake.
3. Liquid and gas valve are not open.
4. EEV damaged or not proper working
5. Poor heat exchange.
6. Over charged system.
Charging malfunction of capacitor
PU 17
1. Reactor open
2. Charging relay or other components damaged on PCB.
HST failure P7 18
1. Senor was broken or damaged
2. PCB temperature detection circuit has problem
HST over heating protection P8 19
1. Insufficient attachment of IPM module to Heatsink
2. Outdoor PCB problem.
DC under voltage PL 21
1. AC input voltage is too low
2. Reactor has problem
3. ODU PCB has problem
Lack Phase Protection of Compressor
Ld
1. Compressor wiring problem
2. Compressor problem
3. IPM module problem or compressor current detection circuit has problem
4. Compressor malfunction due to EEV problem
13.1.5 Checking the refrigeration system
Checking system pressures and other thermodynamic measures should be done when system is in Test Mode (in Test mode, system operates in fixed settings). The performance curves given in this manual are given for unit performance in test mode when high indoor fan speed is selected. Entering test mode please refer to section 12- Control system.
13.2 Simple procedures for checking the Main Parts
13.2.1 Checking Mains Voltage.
Confirm that the Mains voltage is between 198 and 264 VAC. If Mains voltage is out of this range, abnormal operation of the system is expected. If in range check the Power (Circuit) Breaker and look for broken or loosed cable lugs or wiring mistake(s).
13.2.2 Checking Power Input.
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TROUBLESHOOTING
13-6 Service Manual – VBZ DCI 1-A.1 GB
If Indoor unit power LED is unlighted, power down the system and check the fuse of the Indoor unit. If the fuse is OK replace the Indoor unit controller. If the fuse has blown, replace the fuse and power up again. Checking Power Input procedure for the Outdoor unit is the same as with the Indoor unit.
13.2.3 Checking the Outdoor Fan Motor.
Enter Test Mode (where the OFAN speed is high) Check the voltage between two pins( Hi and N ) of connector Controller OFAN, normal voltage is 220VAC.
13.2.4 Checking the Compressor.
The compressor is brushless permanence magnetic DC motor. Three coil resistance is same. Check the resistance between three poles. The normal value should is
~0.452ohm.(Model 14) and ~0.88ohm(Model 18/30)Pay attention U,V, W are respective to
connect to RED,YELLOW,BLUE wires.
13.2.5 Checking the Reverse Valve (RV).
Running in heating mode, check the voltage between two pins of reverse valve connector, normal voltage is 220VAC.
Page 60
CHARACTERISTICS OF SENSOR
14. CHARACTERISTICS OF SENSOR CHARACTERISTICS OF SENSOR
14.1.1 RAT/OAT 14.1.1 RAT/OAT
RAT/OAT R-T chart
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
-20-15-10-5 0 5 10152025303540455055606570
Temperature(C)
Resistance(Kohm)
14.1.2 ICT/OCT/RGT/RLT
ICT/OCT R-T Chart
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
-20-15-10-5 0 5 10152025303540455055606570
Temperature(C)
Resistance(Kohm)
Service Manual – VBZ DCI 1-A.1 GB 14-1
Page 61
CHARACTERISTICS OF SENSOR
14-2 Service Manual – VBZ DCI 1-A.1 GB
14.1.3 CTT
CTT R-T Chart
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
Temperature(C)
Resistance(Kohm)
Page 62
EXPLODED VIEW & SPARE PART LIST
15. EXPLODED VIEW & SPARE PART LIST
15.1 Exploded view of indoor unit: JYD009-012
Service Manual – VBZ DCI 1-A.1 GB 15-1
Page 63
EXPLODED VIEW & SPARE PART LIST
15-2 Service Manual – VBZ DCI 1-A.1 GB
15.2 Spare part list of indoor Unit: JYD009
NO. Part Code Part Description qty 1 02122033 Decorative Strip 1 2 2001237604_K47371 Front Panel Assy 1 3 1112208201 Filter Sub-Assy 2 4 24252019 Screw Cap 1 5 2001237501_K47371 Front Case Assy 1 6 10512119 Guide Louver 1 7 1054202001 Shaft of guide louver 2 8 10512160 Air Louver 2 9 26112486 Helicoid tongue 1 10 2220211901_K47371 Rear Case assy 1 11 76712020 Pipe plug (outlet) 1 12 10542024 Axile Bush sub-assy 1 13 76512011 Damping washer sub-assy 1 14 400204056 Connecting Cable 1 15 30510136_K47371 Remote Controller 1 16 39000305 sensor 1 17 390000453 Ambient Temperature Sensor 1 18 24212108 Evaporator Support 1 19 01002270 Evaporator Assy 1 20 0125201801A Wall Mounting Frame 1 21 10352423 Cross Flow Fan 1 22 26112191 Motor Press Plate 1 23 15002002 Motor Sub-Assy 1 24 26112218 Baffle Plate 1 25 0523204101 Drainage Pipe Sub-assy 1 26 1521210701 Step Motor 1 27 73012005 Crank 1 28 2020225308 Electric Box Assy 1 29 20112086 Electric Box 1 30 22242084 Indicator Light Cover 1 31 42011233 4-bit Terminal Board 1 32 22242083 Indicator shield cover 1 33 30138682 Main Board 1 34 33010002 Capacitor CBB61 1 35 4202300101 Jumping Connector 1 36 20122109 Electric Box Cover Sub-Assy 1 37 20122106 Electric Box Cover 1
Page 64
EXPLODED VIEW & SPARE PART LIST
Service Manual – VBZ DCI 1-A.1 GB 15-3
15.3 Spare part list of indoor Unit: JYD012
NO. Part Code Part Description qty 1 02122033 Decorative Strip 1 2 2001237604_K47371 Front Panel Assy 1 3 1112208201 Filter Sub-Assy 2 4 24252019 Screw Cap 1 5 2001237501_K47371 Front Case Assy 1 6 10512119 Guide Louver 1 7 1054202001 Shaft of guide louver 2 8 10512160 Air Louver 2 9 26112486 Helicoid tongue 1 10 2220211901_K47371 Rear Case assy 1 11 76712020 Pipe plug (outlet) 1 12 10542024 Axile Bush sub-assy 1 13 76512011 Damping washer sub-assy 1 14 400204056 Connecting Cable 1 15 30510136_K47371 Remote Controller 1 16 39000305 sensor 1 17 390000453 Ambient Temperature Sensor 1 18 24212108 Evaporator Support 1 19 01002745 Evaporator Assy 1 20 0125201801A Wall Mounting Frame 1 21 10352423 Cross Flow Fan 1 22 26112191 Motor Press Plate 1 23 15002002 Motor Sub-Assy 1 24 26112218 Baffle Plate 1 25 0523204101 Drainage Pipe Sub-assy 1 26 1521210701 Step Motor 1 27 73012005 Crank 1 28 2020225309 Electric Box Assy 1 29 20112086 Electric Box 1 30 22242084 Indicator Light Cover 1 31 42011233 4-bit Terminal Board 1 32 22242083 Indicator shield cover 1 33 30138682 Main Board 1 34 33010002 Capacitor CBB61 1 35 4202300103 Jumping Connector 1 36 20122109 Electric Box Cover Sub-Assy 1 37 20122106 Electric Box Cover 1
Page 65
EXPLODED VIEW & SPARE PART LIST
15-4 Service Manual – VBZ DCI 1-A.1 GB
15.4 Exploded view of indoor unit: JYD018
Page 66
EXPLODED VIEW & SPARE PART LIST
Service Manual – VBZ DCI 1-A.1 GB 15-5
15.5 Spare part list of indoor Unit: JYD018
NO. Part Code Part Description qty
2 20012663 Front Case 1
20012496_K47371 Front Panel Assy 1 3 11122104 Filter Sub-Assy 2 4 242520041 Screw Cover 1 5 20012497_K47371 Front Case Assy 1 6 10512140 Guide Louver 1 7 10542008 Axial Bush (guide louver) 1 8 10512160 Air Louver 2 9 26112232 Helicoid tongue 1
10 22202154 Rear Case assy 1 11 76712012 Water Tray Glue Plug 1 12 76512051 O-Gasket sub-assy of Bearing 1 13 400204056 Connecting Cable 0 14 30510136_K47371 Remote Controller 1 15 390000591 Tube Sensor (20K black) 1 16 390000453 Ambient Temperature Sensor 1 17 24212119 Evaporator Support 1 18 0100260301 Evaporator Assy 1 19 01252484 Wall Mounting Frame 1 20 10352036 Cross Flow Fan 1 21 26112231 Motor Press Plate 1 22 15012116 Motor 1 23 26112164 Pipe Clamp 1 24 0523001407 Drainage hose 1 25 15012086 Step Motor 1 26 10582070 Crank 1 27 2020240402 Electric Box Assy 1 28 20112103 Electric Box 1 29 22242084 Indicator Light Cover 1 30 4201026601 Terminal Board(three-bit) 1 31 22242083 Indicator shield cover 1 32 30138685 Main Board 1 33 33010043 Capacitor 1 34 4202300105 Jumper Cap 1 35 01592088 Shield Cover of Electric box Cover 1 36 20122123 Electric Box Cover 1 37 01592087 Shield cover of Electric Box 1
10512037 Left Axial Bush 1
30568112 Display Board 1
11012025 Air Cleaner 1
111220071 Photo catalysis Filter 1
Page 67
EXPLODED VIEW & SPARE PART LIST
15-6 Service Manual – VBZ DCI 1-A.1 GB
15.6 Exploded view of outdoor unit: VBZ214
Page 68
EXPLODED VIEW & SPARE PART LIST
Service Manual – VBZ DCI 1-A.1 GB 15-7
15.7 Spare part list of outdoor Unit: VBZ214
NO. Part Code Part Description qty 1 22413015 Front Grill 1 2 01433034P Cabinet 1 3 01205161P Chassis Sub-assy 1 4 26113009 Drainage Joint 1 5 76710236 Compressor Gasket 3 6 00103501 Compressor And Fittings C-6RZ146H1A 1 7 4300040033 4-way Valve Fittings 1 8 03123438 4-way Valve Assy 1 9 3900007301 Temperature Sensor 1 10 39000073 Tube Temperature Sensor 1 11 071302391 Cut-off Valve 2 12 07130239 Cut-off Valve 2 13 22242101 Valve cover 1 14 26233048 Big Handle 1 15 4300008401 Electric expand valve fitting 1 16 43000084 Electric expand valve fitting 1 17 43120130 PFC Inductance 1 18 01233117 Clapboard Sub-Assy 1 19 3900030901 Temperature Sensor 1 20 01475019 Rear Grill 1 21 01113763 Condenser Assy 1 22 01253034P Top Cover 1 23 01703398 Motor Support Sub-Assy 1 24 01303169P Left Side Plate 1 25 02603411 Electric Box Assy 1 26 40020318 Connecting Cable 1 27 15013162 Fan Motor 1 28 10333010 Axial Flow Fan 1 30033075 Filter Board 1 430004032 4-way Valve 1 07245101 Silencer 1 420111041 Terminal Board 2 42010178 Terminal Board 1 0721004501 Strainer 1 42020063 Sensor Insert 4 33010011 Capacitor 1 20113013 Electric Box 1 30138633 Main Board 1 07103067 Valve support assy 1 32003001 OH Thermistor(compressor) 1
Page 69
EXPLODED VIEW & SPARE PART LIST
15-8 Service Manual – VBZ DCI 1-A.1 GB
15.8 Exploded view of outdoor unit: VBZ318
Page 70
EXPLODED VIEW & SPARE PART LIST
Service Manual – VBZ DCI 1-A.1 GB 15-9
15.9 Spare part list of outdoor Unit: VBZ318
NO. Part Code Part Description qty 1 22415002 Front grill 1 2 01535008P Front Panel 1 3 06813401 Choke Plug 3 4 01203942P Chassis Sub-assy 1 5 06123401 Drainage Connecter 1 6 00105036 Compressor and fittings 1 7 76710207 Rubber Grommet 3 8 07225017 Gas-liquid Separator Assy 1 9 03723455 Inhalation Tube 1 10 01303194P Right Side Plate 1 11 0710306601 Valve support assy 1 12 071302391 Cut-off Valve 3 13 07130239 Cut-off Valve 3 14 20123029 Valve cover 1 15 3900007302 Temperature Sensor 1 16 3900007301 Temperature Sensor 1 17 39000073 Tube Temperature Sensor 1 18 4300008402 Electric expand valve fitting 1 19 07133456 Electronic Expansion Valve assy 1 20 4300008401 Electric expand valve fitting 1 21 43000084 Electric expand valve fitting 1 22 4300040033 4-way Valve Fittings 1 23 03123415 4-way Valve Assy 1 24 26115004 Wiring clamp 1 25 01233116 Clapboard assy 1 26 3900030901 Temperature Sensor 1 27 01473043 Rear Grill 1 28 01113710 Condenser Assy 1 29 01255005P Top Cover 1 30 0170512001 Motor Support Sub-Assy 1 31 01173415 Condenser support plate 1 32 01305041P Left Side Plate 1 33 26235401 Small Handle 1 34 01413150 Electric Box Cover 1 35 01413148 Electric box (fireproofing) 1 36 0260337201 Electric Box Assy 1 37 400205405 Connecting Cable 1 38 1501506303 Fan Motor 1 39 10335008 Axial Flow Fan 1 76518732 Electric Heater 1 33010010 Capacitor CBB61 3.5kuF/450V 1 430004032 4-way Valve 1 30138710 Main Board 1 460200061 Pressure Switch 1
Page 71
EXPLODED VIEW & SPARE PART LIST
15-10 Service Manual – VBZ DCI 1-A.1 GB
15.10 Exploded view of outdoor unit: VBZ430
Page 72
EXPLODED VIEW & SPARE PART LIST
Service Manual – VBZ DCI 1-A.1 GB 15-11
15.11 Spare part list of outdoor Unit: VBZ430
NO. Part Code Part Description qty 1 22415002 Front grill 1 2 01535008P Front Panel 1 3 06813401 Choke Plug 3 4 01203942P Chassis Sub-assy 1 5 06123401 Drainage Connecter 1 6 00105036 Compressor and fittings 1 7 76710207 Rubber Grommet 3 8 07225017 Gas-liquid Separator Assy 1 9 03723455 Inhalation Tube 1 10 01303194P Right Side Plate 1 11 07103066 Valve support assy 1 12 071302391 Cut-off Valve 4 13 07130239 Cut-off Valve 4 14 20123029 Valve cover 1 15 3900007303 Temperature Sensor 1 16 3900007302 Temperature Sensor 1 17 3900007301 Temperature Sensor 1 18 39000073 Tube Temperature Sensor 1 19 4300008403 Electric expand valve fitting 1 20 4300008402 Electric expand valve fitting 1 21 4300008401 Electric expand valve fitting 1 22 43000084 Electric expand valve fitting 1 23 4300040033 4-way Valve Fittings 1 24 03123415 4-way Valve Assy 1 25 26115004 Wiring clamp 1 26 01233116 Clapboard assy 1 27 3900030901 Temperature Sensor 1 28 01473043 Rear Grill 1 29 01113710 Condenser Assy 1 30 01255005P Top Cover 1 31 0170512001 Motor Support Sub-Assy 1 32 01173415 Condenser support plate 1 33 01305041P Left Side Plate 1 34 26235401 Small Handle 1 35 01413150 Electric Box Cover 1 36 01413148 Electric box (fireproofing) 1 37 02603372 Electric Box Assy 1 38 400205405 Connecting Cable 1 39 1501506303 Fan Motor 1 40 10335008 Axial Flow Fan 1 30138571 Main Board 1 460200061 Pressure Switch 1 430004032 4-way Valve 1 33010010 Capacitor CBB61 3.5kuF/450V 1 76518732 Electric Heater 1
Page 73
EXPLODED VIEW & SPARE PART LIST
15-12 Service Manual – VBZ DCI 1-A.1 GB
APPENDIX
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