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Contents 

1.

 

UNIT INSTRUCTION 

2

 

1-1

 

I

NSTRUCTION

 

2

 

1-2

 

M

AIN 

T

ECHNICAL 

D

ATA

 

3

 

1-3

 

U

NIT 

D

RAWING

 

5

 

1-4

 

M

AIN 

C

OMPONENTS

 

6

 

1-5

 

T

I

O

2

 

YBAH

 

A

SSEMBLY

 

6

 

1-6

 

E

LECTROSTATIC 

P

RECIPITATION

 

11 

 

2. TRANSPORTATION & INSTALLATION 

12

 

2-1

 

T

RANSPORTATION

 

12

 

2-2

 

A

CCEPTANCE

 

12

 

2-3

 

S

TORAGE

 

12

 

2-4

 

L

IFTING OF THE UNIT

 

12

 

2-5

 

P

OINTS FOR 

A

TTENTION BEFORE 

I

NSTALLATION

 

12

 

2-6

 

P

OINTS FOR 

A

TTENTION DURING 

I

NSTALLATION

 

12

 

2-7

 

B

RIEF 

I

NTRODUCTION TO THE 

I

NSTALLATION

 

13 

 

3. START, COMMISSIONING AND RUNNING 

16

 

3-1

 

C

HECK BEFORE 

S

TART UP

 

16

 

3-2

 

E

LECTRIC 

W

IRING 

D

IAGRAMS

 

17

 

3-3

 

F

AN 

P

ART

 

18

 

3-4

 

C

HECK THE FAN BEARING

 

18

 

3-5

 

M

OTOR

 

18

 

3-6

 

A

DJUSTMENT OF BELT 

&

 BELT PULLEY

 

19

 

3-7

 

M

ECHANICAL 

I

NSPECTION

 

19

 

3-8

 

U

NUSED FOR AN 

O

VER

-

LONG PERIOD

 

19

 

3-9

 

P

OINTS FOR 

A

TTENTION DURING 

S

TARTING 

O

PERATION

 

20 

 

4. MAINTENANCE AND REPAIRING 

21

 

4-1

 

F

ILTER 

P

ART

 

21

 

4-2

 

C

OOLING COIL AND 

H

EATING 

C

OIL

 

21

 

4-3

 

F

AN PART

 

21

 

4-4

 

M

OTOR

 

22

 

4-5

 

R

EPLACEMENT OF MOTOR

 

22

 

4-6

 

C

URRENT AND ADJUSTMENT

 

22

 

4-7

 

P

OINTS FOR 

A

TTENTION 

D

URING 

M

AINTENANCE

 

22 

 

5. FAILURE ANALYSIS 

24

 

5-1

 

L

OW 

A

IR 

F

LOW 

R

ATE

 

24

 

5-2

 

H

IGH 

A

IR 

F

LOW 

R

ATE

 

24

 

5-3

 

H

IGH

-L

EVEL 

N

OISE

 

24

 

5-4

 

B

ELT 

B

REAKING

 

24

 

Summary of Contents for YBAH Series

Page 1: ...Air Flow 1500 15000 m3 h YBAH G CEILING AIR HANDLING UNIT Installation Operation Maintenance Manual FORM NO 6A6Y A02C NA EN...

Page 2: ...MMISSIONING AND RUNNING 16 3 1 CHECK BEFORE START UP 16 3 2 ELECTRIC WIRING DIAGRAMS 17 3 3 FAN PART 18 3 4 CHECK THE FAN BEARING 18 3 5 MOTOR 18 3 6 ADJUSTMENT OF BELT BELT PULLEY 19 3 7 MECHANICAL I...

Page 3: ...xternal total pressure ranges from 175Pa to 315 Pa More external total pressure can be provided for flexible application Each single skin unit is made from galvanized steel with 15mm thick polyester f...

Page 4: ...71 YBAH2FB G 2500 215 135 13 6 18 29 5 38 4 22 3 26 8 32 7 38 5 0 75 77 80 YBAH03B G 3000 205 130 16 8 22 36 2 47 6 28 3 33 3 41 46 8 0 75 85 90 YBAH04B G 4000 260 185 22 5 29 5 50 5 63 8 37 4 46 53 5...

Page 5: ...60 C 50 C 6 External total pressure the sum of velocity pressure and static pressure at the air discharge outlet exclude the pressure drop across the unit 7 For four piped unit heating coil is in the...

Page 6: ...4B G 880 1190 485 539 5 298 262 98 2 86 2 98 7 229 7 237 540 137 5 130 3 406 7 395 3 1050 388 YBAH05B G 880 1450 485 611 232 262 184 80 5 86 2 99 229 7 237 540 137 5 130 6 406 7 395 6 1310 388 YBAH06B...

Page 7: ...1 4 48mm 1 1 2 60mm 2 76mm 2 1 2 89mm 3 3 The condensate pipe connections use 34mm O D male threads thread code R2 4 All dimensions are SI unit mm 1 4 Main Components The main components of York YBAH...

Page 8: ...ge dimension Lamp input power W P mm Q mm YBAH1F TiO2 YBAH1F 1 710 320 3 18 YBAH02 TiO2 YBAH02 1 795 320 3 18 YBAH2F TiO2 YBAH2F 1 950 320 3 18 YBAH03 TiO2 YBAH03 1 980 371 4 18 YBAH04 TiO2 YBAH04 1 1...

Page 9: ...s connected to the external air inlet duct YBAH1F YBAH08 unit Step 1 disassemble the fastening screw of Junction box take off Junction box Step 2 disassemble the fastening screw of side cover plate re...

Page 10: ...g screw of side cover plate remove side cover plate disjoin the connector of cable take off side cover plate Step 3 take out nylon filter and front rear TiO2 aluminum filter Step 4 take out the base o...

Page 11: ...the internal fan is enabled to operate it is closed as the internal fan stops operation 1 5 4 Maintenance 1 The filter and the aluminum mesh should be cleaned regularly It is suggested that the filte...

Page 12: ...should be interlocked control with fan motor Electrostatic Precipitation turn on when the fan motor start Electrostatic Precipitation turn off when the fan motor stop 2 There will be high voltage when...

Page 13: ...n process be careful to prevent the unit from any damage due to improper operations and put a corrugated sheet on the place where the unit lifting rope contacts the unit avoiding damage to the surface...

Page 14: ...e has been equipped with the air exhaust and water drainage plugs The exhaust valve is set on the highest point of the water outlet collector and the water escape valve is places in the lowest point o...

Page 15: ...f hot water and in a well distributed heat exchange condition The air accumulated in the coil should be exhausted regularly 2 7 5 Condensed Water Drainage 2 7 6 Air Duct Connection The connecting betw...

Page 16: ...ter pipe valve and cold water pipe are provided with a heat insulating layer the extended tray should be installed in the cooling water pipe valve and the cold water duct when they are installed in th...

Page 17: ...he power lead in side check all earthed system 5 Clean the condensed water inlet and outlet U bends and fill proper water into them 6 Perform the system water pressure and air ventilation tests 7 Befo...

Page 18: ...nd control devices and supply short circuit and over heat protection 6 The phase sequence protector is required to install and connect its normal open port to the contactor in order to avoid burning o...

Page 19: ...is abnormal Turn the wheel of the fan to check the abnormal noise for example regular friction noise shrill noise etc Observe the spillage lubricating grease from bearing and if the color turn to bla...

Page 20: ...in the belt Tension Indicator 3 After 30 day operation of the unit check the tension of the belt again 4 After one quarter operation of the unit make a complete inspection 3 7 Mechanical Inspection Wh...

Page 21: ...ng and heating pipeline avoiding forming a broiler or a refrigerator due to over high or over low temperature in the unit case 6 When start up the unit switch on the fan first and then the cooler heat...

Page 22: ...ows in correct direction 3 When the unit stops work in winter drain the accumulated water in the coil If required blow in the pipe with compressed air preventing the pipe from freezing crack 4 Perform...

Page 23: ...switch Points for Attention During Maintenance 1 The full time technicians should be assigned for the maintenance of the air conditioner unit and should be responsible for the daily inspection and reg...

Page 24: ...Maintenance and Repairing 23...

Page 25: ...n static pressure and the static pressure is turned into the air flow rate making the air flow rate higher than the normal The increased air flow rate makes the wind speed increase and the unit noise...

Page 26: ...YORK Guangzhou Air Conditioning Refrigeration Co Ltd Phone 0763 468 1111 Fax 0763 468 1114 2021 Johnson Controls Inc www johnsoncontrols om FORM NO 6A6Y A02C NA EN SUPERSEDES Nothing SAP NO 6097387...

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