York YBAH Series Manuel d'instructions

Air Flow：1500~15000 m

YBAH-G CEILING

AIR HANDLING UNIT

Installation, Operation & Maintenance Manual FORM NO.

6A6Y-A02C-NA-EN

Contents

UNIT INSTRUCTION 2

1-1

NSTRUCTION

1-2

AIN

ECHNICAL

ATA

1-3

NIT

RAWING

AIN

OMPONENTS

1-5

YBAH

SSEMBLY

1-6

LECTROSTATIC

RECIPITATION

2. TRANSPORTATION & INSTALLATION 12

2-1

RANSPORTATION

2-2

CCEPTANCE

2-3

TORAGE

IFTING OF THE UNIT

2-5

OINTS FOR

TTENTION BEFORE

NSTALLATION

2-6

OINTS FOR

TTENTION DURING

NSTALLATION

2-7

RIEF

NTRODUCTION TO THE

NSTALLATION

3. START, COMMISSIONING AND RUNNING 16

3-1

HECK BEFORE

TART UP

3-2

LECTRIC

IRING

IAGRAMS

3-3

ART

HECK THE FAN BEARING

3-5

OTOR

3-6

DJUSTMENT OF BELT

BELT PULLEY

3-7

ECHANICAL

NSPECTION

3-8

NUSED FOR AN

VER

LONG PERIOD

3-9

OINTS FOR

TTENTION DURING

TARTING

PERATION

. MAINTENANCE AND REPAIRING 21

-1

ILTER

ART

-2

OOLING COIL AND

EATING

OIL

-3

AN PART

OTOR

-5

EPLACEMENT OF MOTOR

-6

URRENT AND ADJUSTMENT

-7

OINTS FOR

TTENTION

URING

AINTENANCE

5. FAILURE ANALYSIS 2

5-1

LOW

ATE

5-2

IGH

LOW

ATE

5-3

IGH

-L

EVEL

OISE

ELT

REAKING

Unit Instruction

1. Unit Instruction

1-1 Instruction

YORK YBAH series ceiling-mounted air handling units are terminal points of central air-conditioning

systems. They are designed for fresh air units or to cool, heat, humidity and de-humidify, filter and clean

the air, etc. The conditioned air can be delivered to locations across various distances via specially

designed ducts. The units are especially suitable for the air-conditioning of commercial buildings and

industry applications.

YORK YBAH series air handling units have 12 different models. The cooling capacity ranges from 8kW

to 252kW, and air flow from 1500m3/h to 15000m3/h. Rated external 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 fiber inner insulation. It

contains a built-in cooling coil and fan, and externally mounted nylon air filters.

Cooling and heating coil use copper tubes with aluminum fins. The fan, motor and belt pulley are all

high-quality products producing stable and efficient performance. The fan is a forward curved

centrifugal model that works on double air inlets. The motor features IP55 and a type mounted filter can

be withdrawn from side or bottom. For double skin unit, the filter only can be withdrawn from side.

Feature

 Easy installation

 Lower unit height for low head floor ceiling application

 Low noise

 Filter can be withdrawn from side or bottom

Unit Instruction

Nomenclature:

1-2 Main Technical Data

Model

Airflow

/h)

Nominal

external total

pressure (Pa)

Nominal cooling capacity (kW) Nominal heating capacity (kW)

Fan type Motor type

Motor

power(kW)

Weight (kg)

Return air

condition

Fresh air

condition

Return air

condition

Fresh air

condition

N H N H N H N H N H N H

YBAH1FB-G 1500 145 70 8.3 11 18.6 24.2 13.5 16.6 19.8 23.7

High

efficient,

double air

inlets

forward

curved

3-Ø

asynchronous

motor, F class

insulation, IP55

0.55 64 66

YBAH02B-G 2000 165 90 11.3 15.1 24.4 31.7 18.9 21.8 26.4 31.3 0.55 68 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 61.8 1.1 107 112

YBAH05B-G 5000 235 160 28.3 37 63.1 80.1 47.1 56.6 65.7 77.4 1.5 134 142

YBAH06B-G 6000 220 145 33.7 44 72.6 95.4 58.1 64.6 79.3 92.7 1.5 147 156

YBAH07B-G 7000 220 140 39.1 50.4 80.7 104.7 64.8 77.3 89.9 108 1.5 157 167

YBAH08B-G 8000 260 170 45.6 58.8 96.7 128.2 75.7 90 106.4 130.1 2.2 173 187

YBAH10B-G 10000 300 215 62.3 78.2 133.8 170 103.6 118.7 149 168.6 3 214 234

YBAH12B-G 12000 255 170 75 93.7 157.9 204.5 124.4 140.9 177.3 202.6 3 274 300

YBAH15B-G 15000 315 230 93.4 117.1 197.1 252.9 154.9 176.8 221.5 251.1 4 306 338

Unit Instruction

Notes

1. The weight listed in the table is the shipping weight. The operation weight of unit is about 20%

more than the shipping weight.

2. Standard return air cooling conditions air inlet at 27°C DB/19.5WB; chilled water inlet/outlet at

7°C/12°C.

3. Standard return air heating conditions air inlet at 21°CDB; hot water inlet/outlet at 60°C/50°C.

4. Cooling conditions of fresh air unit air inlet at 35°C DB/28°C WB; chilled water inlet/outlet at

7°C/12°C.

5. Heating conditions of fresh air unit air inlet at 7°C DB; hot water inlet/outlet at 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 front of the cooling coil in the direction of air flow.

8. If the unit has TiO2, evaporative humidifier or split coil (cooling + heating) option, the external total

pressure should be deducted by the responding air drop pressure.

The unit performance is based on 5m altitude, the variance of altitude will affect the unit performance.

Altitude correction factors：

Altitude(m) 300 900 1200 1500 1800

Total heat 0.99 0.97 0.96 0.94 0.93

Sensible heat 0.96 0.90 0.86 0.93 0.80

Note The above is only for reference. Please contact our local office for detailed data.

Unit Instruction

1-3 Unit Drawing

Single Fan unit Double Fan Unit

Model

De. Wi. He. Supply air flange size Piping position

Return air

flange size

A B C D E F G H

J K

M N

P Q

N H N H N H N H

YBAH1FB-G 680 800 417 402.5 259 228 - 75.2 55.2 51.9 66 72.7 370 128.5 128.5 343.5 343.5 660 320

YBAH02B-G 680 865 417 417.5 259 228 - 75.2 55.2 51.9 66 72.7 370 128.5 128.5 343.5 343.5 725 320

YBAH2FB-G 680 1005 417 495.5 259 228 - 75.2 55.2 51.9 66 72.7 370 128.5 128.5 343.5 343.5 865 320

YBAH03B-G 800 1005 458 511.5 287 256 - 87.2 95.9 98.7 199.6 205.5 550 137.7 148.5 351.5 358.9 865 361

YBAH04B-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-G 880 1680 485 612 298 262 244 80.5 86.2 99 229.7 237 540 137.5 129.9 406.7 395.6 1540 388

YBAH07B-G 800 1810 550 609.5 331 289 264 90.5 60.5 64 66 88 368 129.9 129.9 461.7 461.7 1670 453

YBAH08B-G 800 2050 550 619.5 331 289 264 90.5 60.5 64 66 88 368 129.9 129.9 461.7 461.7 1910 453

YBAH10B-G 940 1870 752 704.5 471 404 - 113.5 63.3 76 82.5 110 423 129.9 129.9 677.6 677.6 1730 655

YBAH12B-G 940 2170 752 690 395 341 324 113.5 63.3 76 82.5 110 423 129.9 129.9 677.6 677.6 2030 655

YBAH15B-G 940 2645 752 807.5 373 404 294 113.5 63.3 76 82.5 110 423 129.9 129.9 677.6 677.6 2505 655

Unit Instruction

Coil connection size

：

Model Cooling coil Heating coil

Nominal capacity High capacity 1 row 2 rows

YBAH1F

Φ34 Φ34

YBAH02

Φ34 Φ34

YBAH2F

Φ34 Φ34

YBAH03

Φ34 Φ48

Φ34 Φ34

YBAH04

Φ48 Φ48

Φ34 Φ34

YBAH05

Φ48 Φ60

Φ34 Φ34

YBAH06

Φ48 Φ60

Φ34 Φ34

YBAH07

Φ48 Φ60

Φ34 Φ48

YBAH08

Φ48 Φ60

Φ34 Φ48

YBAH10

Φ60 Φ76

Φ48 Φ48

YBAH12

Φ60 Φ76

Φ48 Φ48

YBAH15

Φ60 Φ76

Φ48 Φ48

Notes

1. When G is“-”, the unit has only one air supply duct connection.

2. The coil pipe connections use male threads (thread code R2).

The corresponding imperial diameters are

34mm---1” 42mm---1-1/4” 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- Main Components

The main components of York YBAH air handling unit include

Main accessories

YBAH1F-15 adopts SYT series double-inlet forward-inclined centrifugal fan.

The belt drive series motor adopts the IE3 series three-phase asynchronous motor, the insulation class

is F, and the protection class is IP55.

Optional accessories

Electrostatic precipitator

TiO2 YBAH module

1-5 TiO

YBAH Assembly

The TiO2 YBAH assembly consists of two parts sterilizer and sterilizer frame. If the customer selects the

TiO2 YBAH assembly, it has been installed in the YBAH unit before ex- factory.

Unit Instruction

TiO

YBAH Assembly

1-5-1 TiO2 assembly installation

The TiO2 YBAH assembly is installed in the air-inlet of the YBAH unit (The Figure shown as below), which

has been installed before ex- factory.

Component list of TiO2 YBAH Assembly

Model TiO

model Connection frame Qty

Connection flange dimension Lamp input

power（W）

P,mm Q,mm

YBAH1F

TiO

YBAH1F 1 710 320 3×18

YBAH02

TiO

YBAH02

1 795 320 3×18

YBAH2F

TiO

YBAH2F

1 950 320 3×18

YBAH03

TiO

YBAH03

1 980 371 4×18

YBAH04

TiO

YBAH04

1 1120 411 4×18

YBAH05

TiO

YBAH05

1 1260 460 4×18

YBAH06

TiO

YBAH06

1 1460 460 6×18

YBAH07

TiO

YBAH07

1 1700 460 6×18

YBAH08

TiO

YBAH08

1 1910 460 9×18

YBAH10

TiO

YBAH10

1 1710 639 12×18

YBAH12

TiO

YBAH12

1 2010 639 12×18

YBAH15

TiO

YBAH15

1 2485 639 18×18

Notice Ultraviolet Lamp Power 18W/Piece

Unit Instruction

1-5-2 Ultraviolet Lamp Installation, disassembling

The ultraviolet lamp is delivered with the unit but is not installed in the unit, thus, it should be mounted

in the unit before being powered on and put into service. It is recommended to install the lamp

according to steps as below before the unit is 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, 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 of TiO2

Lampe

Step 5 Ultraviolet Lamp Installation, operation, maintenance

Notice The installation should be according to steps in the reverse order.

Unit Instruction

YBAH10-YBAH15 unit:

Step 1 disassemble the fastening screw of Junction box, take off Junction box

Step 2 disassemble the fastening 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 of TiO2

Lampe

Step 5 Ultraviolet Lamp Installation, operation, maintenance

Notice The installation should be according to steps in the reverse order.

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