Airwell YFAD-160R-01M25 Middle Static Pressure Duct Air Conditioner User Manual

Airwell YFAD-160R-01M25 Middle Static Pressure Duct Air Conditioner

YFAD-160R-01M25 Middle Static Pressure Duct Air Conditioner

TECHNICAL Manual

MIDDLE STATIC PRESSURE DUCT AIR CONDITIONER DFMA R410A ON OFF 50Hz English Manual DFMD-100N-01M25 / YFAD-100R-01M25 DFMD-100N-01T35 / YFAD-100R-01T35 DFMD-140N-01M25 / YFAD-140R-01M25 DFMD-160N-01M25 / YFAD-160R-01M25

IMPORTANT NOTE: Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference.

Specifications

Contents
1. Model Reference……………………………………………………………………………………….5 2. General Specifications……………………………………………………………………………….6 3. Dimensional Drawings …………………………………………………………………………….12 4. Centre of Gravity …………………………………………………………………………………….15 5. Electrical Wiring Diagrams……………………………………………………………………….18 6 Refrigerant Cycle Diagrams ……………………………………………………………………..31 7. Capacity Tables ……………………………………………………………………………………….33 8. Capacity Correction Factor for Height Difference ………………………………………48 9. Noise Data………………………………………………………………………………………………53 10. Electrical Characteristics…………………………………………………………………………..55 11. Static Pressure…………………………………………………………………………………………56

Model Reference

Refer to the following table to determine the specific indoor and outdoor unit model number of your purchased equipment.

Indoor Unit Model DFMD-100N-01M25 DFMD-100N-01T35 DFMD-140N-01M25 DFMD-160N- 01M25

Outdoor Unit Model YFAD-100R-01M25 YFAD-100R-01T35 YFAD-140R-01M25 YFAD-160R- 01M25

Capacity (Btu/h) 36K

Power Supply 1, 220~240V~, 50Hz

36K

3, 380~415V~, 50Hz

48K

3, 380~415V~, 50Hz

60K

3, 380~415V~, 50Hz

Page 5

Specifications

General Specifications

Indoor model

Outdoor model

Power Supply

Max. input consumption

Max. input current

Model

Qty

Insulation class

Indoor fan motor

IP rating

Input

Capacitor

Speed(Hi/Mi/Lo)

Number of rows

Tube pitch(a)x row pitch(b)

Fin spacing

Indoor coil

Fin type (code)

Tube outside dia.and type

Coil length x height x width

Number of circuits

Rated ESP
Range

Indoor air flow (Hi/Mi/Lo)

Sound level (sound pressure)

Throttle type

Dimension(WDH)

Indoor unit

Packing (WDH)

Net/Gross weight

Design pressure

Drainage water pipe diameter

Refrigerant piping

Liquid side/ Gas side

Controller

Operation temperature

Room temperature

Cooling Heating

Qty’per 20′ /40′ /40’HQ

Model

Type

Brand

Capacity

Compressor

Input Rated current(RLA)

Locked rotor Amp(LRA)

Thermal protector position

Capacitor

V-Ph-Hz W A
W uF r/min
mm mm
mm mm
Pa Pa m3/h dB(A)
mm mm Kg MPa mm mm(inch)
Indoor unit
W W A A
F

Refrigerant oil/oil charge

ml

DFMD-100N-01T35 YFAD-100R-01T35
220-240,50,1 5200 23.0
YKSS-115-4-21 1 F
IPX0 253.0
5 1110/1000/910/780
3 21×13.37
1.4 Hydrophilic aluminium 7, innergroove tube
915x294x40.11 7 37
0-100 1700/1280/950 45/41.5/38.5
/ 1100x774x249 1305x805x305
33.2/40.3 4.2/1.5
OD25mm 9.52/19(3/8″/3/4″)
wired control 17~30 17~32 0~30
77/161/198 ATQ420V1SMT
ROTARY GMCC 10435/10525 3520/3755 16.35/17.25
89 INTERNAL 45UF/450V ESTER OIL VG75 · 1250±15·ml

Page 6

Outdoor fan motor
Outdoor coil

Model Qty
Insulation class IP rating Input Capacitor Speed
Number of rows Tube pitch(a)x row pitch(b)
Fin spacing Fin type (code) Tube outside dia.and type

Coil length x height x width

Number of circuits

Outdoor noise level

Throttle type

Dimension(WDH)

Outdoor unit

Packing (WDH)

Net/Gross weight

Refrigerant type

Type Charged volume

Design pressure

Liquid side/ Gas side

Refrigerant piping

Max. refrigerant pipe length

Max. difference in level

Room temperature

Cooling Heating

Qty’per 20′ /40′ /40’HQ

W uF r/min
mm mm
mm mm
dB(A)
mm mm Kg
Kg MPa mm(inch)
m m Outdoor unit

YKS-190-6-21L 1 B
IPX4 293.3 10/450V 850/770 2 25.4×22
1.3 Hydrophilic aluminum 9.52,Inner groove tube 995x762x44
4 63 Throttle valve 946x410x810 1090x500x885 75.6/80.4 R410A 2.8 4.2/1.5 9.52/19(3/8″/3/4″) 30 20 18-43 -7-24 44/96/138

Notes:

1. Capacities are based on the following conditions:

Cooling(T1): – Indoor Temperature 27°C(80.6°F) DB /19 °C(66.2°F) WB Heating: – Indoor Temperature 20°C(68°F) DB / 15°C(59°F) WB

-Outdoor Temperature 35 °C(95°F) DB /24 °C(75.2°F) WB

-Outdoor Temperature 7°C(44.6°F) DB / 6°C(42.8°F) WB

-Interconnecting Piping Length 5m

– Interconnecting Piping Length 5 m

– Level Difference of Zero.

– Level Difference of Zero.

2. Capacities are Net Capacities.

3. Due to our policy of innovation some specifications may be changed without notification.

Page 7

Specifications

Indoor model

Outdoor model

Power Supply

Max. input consumption

Max. input current

Model

Qty

Insulation class

Indoor fan motor

IP rating

Input

Capacitor

Speed(Hi/Mi/Lo)

Number of rows

Tube pitch(a)x row pitch(b)

Fin spacing

Indoor coil

Fin type (code)

Tube outside dia.and type

Coil length x height x width

Number of circuits

Rated ESP
Range

Indoor air flow (Hi/Mi/Lo)

Sound level (sound pressure)

Throttle type

Dimension(WDH)

Indoor unit

Packing (WDH)

Net/Gross weight

Design pressure

Drainage water pipe diameter

Refrigerant piping

Liquid side/ Gas side

Controller

Operation temperature

Room temperature

Cooling Heating

Qty’per 20′ /40′ /40’HQ

Compressor Outdoor fan motor

Model Type Brand Capacity Input Rated current(RLA) Locked rotor Amp(LRA) Thermal protector position Capacitor Refrigerant oil/oil charge Model Qty Insulation class IP rating Input Capacitor Speed

V-Ph-Hz W A
W uF r/min
mm mm
mm mm
Pa Pa m3/h dB(A)
mm mm Kg MPa mm mm(inch)
Indoor unit
W W A A
F ml
W uF r/min

DFMD-100N-01T35 YFAD-100R-01T35
380~415,50,3 4250 7
YKSS-115-4-21 1 F
IPX0 253
8 1110/1000/910/780
3 21×13.37
1.4 Hydrophilic aluminium 7, innergroove tube
915x294x40.11 7 37
0-100 1804/1372/1149
47/40.5/38 /
1100x774x249 1305x805x315
32.2/39.4 4.2/1.5
OD25mm 9.52/19(3/8″/3/4″)
wired control 17~30 17~32 0~30
77/161/184
ATQ420Y1TMT ROTARY GMCC
10460W±5% 3430W±5%
6.1A±5% 36
INTERNAL /
ESTER OIL VG74 1200CC YKS-190-6-21L 1 B IPX4 293.3 10/450V 850/770

DFMD-140N-01M25 YFAD-140R-01T35
380~415,50,3 6300 11
YKSS-210-4-2 1 B
IPX0 430 10 930/860/760
3 21×13.37
1.3 Hydrophilic aluminium 7,innergroove tube
1030x378x40.11 8 50
0-160 2150/1800/1400
48.5/45/41 /
1200x874x300 1405x915x365
46/54.5 4.2/1.5 OD25mm 9.52/19(3/8″/3/4″) wired control 17~30 17~32 0~30
62/130/149
C-SBN373H8D Scroll
Panasonic 14100/17100
4750/5600 8.22/8.30
66.0 Internal
/ FV68S/1700 YKT-65-6-34L
2 B IPX4 162 3.5UF/450V 765

Page 8

Number of rows

Tube pitch(a)x row pitch(b)

Fin spacing

Outdoor coil

Fin type (code)

Tube outside dia.and type

Coil length x height x width

Number of circuits

Outdoor noise level

Throttle type

Dimension(WDH)

Outdoor unit

Packing (WDH)

Net/Gross weight

Refrigerant type

Type Charged volume

Design pressure

Liquid side/ Gas side

Refrigerant piping

Max. refrigerant pipe length

Max. difference in level

Room temperature

Cooling Heating

Qty’per 20′ /40′ /40’HQ

mm mm
mm mm
dB(A)
mm mm Kg
Kg MPa mm(inch)
m m Outdoor unit

2.0 25.4×22
1.3 Hydrophilic aluminum 9.52,Inner groove tube
995x762x44 4 63
Throttle valve 946x410x810 1090x500x875
74.4/78.9 R410A 2.85 4.2/1.5
9.52/19(3/8″/3/4″) 30 20
18-43 -7-24
44/96/144

2.0 22×19.05
1.6 Hydrophilic aluminum 7.94,Inner groove tube
837x1100x38.1 8 63
Throttle valve 900x350x1170 1032x443x1307
97/107 R410A
3.3 4.2/1.5 9.52/19(3/8″/3/4″)
50 30 18-43 -7-24
27/57/108

Notes:

1. Capacities are based on the following conditions:

Cooling(T1): – Indoor Temperature 27°C(80.6°F) DB /19 °C(66.2°F) WB Heating: – Indoor Temperature 20°C(68°F) DB / 15°C(59°F) WB

-Outdoor Temperature 35 °C(95°F) DB /24 °C(75.2°F) WB

-Outdoor Temperature 7°C(44.6°F) DB / 6°C(42.8°F) WB

-Interconnecting Piping Length 5m

– Interconnecting Piping Length 5 m

– Level Difference of Zero.

– Level Difference of Zero.

2. Capacities are Net Capacities.

3. Due to our policy of innovation some specifications may be changed without notification.

Page 9

Indoor fan motor Indoor coil ESP Indoor unit
Refrigerant piping Room temperature
Compressor
Outdoor fan motor

Indoor model Outdoor model Power Supply Max. input consumption Max. input current
Model Qty
Insulation class IP rating Input Capacitor
Speed(Hi/Mi/Lo) Number of rows Tube pitch(a)x row pitch(b)
Fin spacing Fin type (code) Tube outside dia.and type Coil length x height x width Number of circuits
Rated Range Indoor air flow (Hi/Mi/Lo) Sound level (sound pressure) Throttle type Dimension(WDH) Packing (WDH) Net/Gross weight Design pressure Drainage water pipe diameter Liquid side/ Gas side Controller Operation temperature Cooling Heating Qty’per 20′ /40′ /40’HQ Model Type Brand Capacity Input Rated current(RLA) Locked rotor Amp(LRA) Thermal protector position Capacitor Refrigerant oil/oil charge Model Qty Insulation class IP rating Input Capacitor Speed

V-Ph-Hz W A
W uF r/min
mm mm
mm mm
Pa Pa m3/h dB(A)
mm mm Kg MPa mm mm(inch)
Indoor unit
W W A A
F ml
W uF r/min

DFMD-160N-01M25 YFAD-160R-01T35 380~415,50,3 7500 12.6 YKSS-210-4-2 1 B IPX0 430 10 930/860/760 3 21×13.37 1.3 Hydrophilic aluminium 7,innergroove tube 1030x378x40.11 8 50 0-160 2400/1850/1490 51.7/46.9/44.4 / 1200x874x300 1405x915x365 46/54.5 4.2/1.5 OD25mm 9.52/19(3/8″/3/4″) wired control 17~30 17~32 0~30 62/130/149 C-SBN453H8D Scroll Panasonic 16400/20300 5750/6750 9.77/9.84 63/68 Internal / FV68S/1700 YKT-65-6-34L 2 B IPX4 162 3.5UF/450V 765

Outdoor coil

Outdoor unit Refrigerant type Refrigerant piping Room temperature

Number of rows Tube pitch(a)x row pitch(b)
Fin spacing Fin type (code) Tube outside dia.and type
Coil length x height x width
Number of circuits Outdoor noise level
Throttle type Dimension(WDH) Packing (WDH) Net/Gross weight Type Charged volume
Design pressure Liquid side/ Gas side
Max. refrigerant pipe length Max. difference in level Cooling Heating
Qty’per 20′ /40′ /40’HQ

mm mm
mm mm
dB(A)
mm mm Kg
Kg MPa mm(inch)
m m Outdoor unit

1.3 Hydrophilic aluminum 7,Inner groove tube 83022630+79522630+83022483+ 79522483 8+4 62.8
Throttle valve 900x350x1170 1032x443x1307
99.7/111.2 R410A 3.3 4.2/1.5
9.52/19(3/8″/3/4″) 50 30
18-43 -7-24 27/57/108

Notes

1. Capacities are based on the following conditions:

Cooling(T1): – Indoor Temperature 27°C(80.6°F) DB /19 °C(66.2°F) WB Heating: – Indoor Temperature 20°C(68°F) DB / 15°C(59°F) WB

-Outdoor Temperature 35 °C(95°F) DB /24 °C(75.2°F) WB

-Outdoor Temperature 7°C(44.6°F) DB / 6°C(42.8°F) WB

-Interconnecting Piping Length 5m

– Interconnecting Piping Length 5 m

– Level Difference of Zero.

– Level Difference of Zero.

2. Capacities are Net Capacities.

3. Due to our policy of innovation some specifications may be changed without notification.

Dimensional Drawings

3.1 Indoor Unit

Model

unit A

3.2 Outdoor Unit
Single Fan Outdoor Unit

Model(KBtu/h) 18
24 36

unit

Double Fan Outdoor Unit

Model (KBtu/h) 48/60

unit

Centre of gravity

18K
24K

36K

48K, 60K

Electrical Wiring Diagrams

Indoor unit

Abbreviation Y/G CAP1 FAN PUMP L N TO CCM Comm.Bus T1 T2 P1 P2

Paraphrase Yellow-Green Conductor
Indoor Fan Capacitor Indoor Fan PUMP LIVE NEUTRAL
Central Controller Indoor Room Temperature Coil Temperature of Indoor Heat Exchanger
Super High Speed High Speed

DFMD-100N-01M25

DFMD-100N-01T35

DFMD-140N-01M25

FAN FOR THE FRESH AIR OR ANION GENERATOR

Alarm Output

Remote Control

ALARM CN33

ON/OFF CN23

CN13

M 2

PUMP

10 CN10

DISPLAY BOARD

WIRE

CONTROLLER

INDOOR UNIT CN6 4 MAINBOARD

T2 BLACK INDOOR COIL TEMP. SENSOR
T1 WHITE ROOM TEMP. SENSOR

CN40 4

CN9 X Y E

3 CN111

CN2

BLACK

Y/G

CN1 RED

WIRE CONTROLLER
Y/G CN18 BROWN BLACK BLUE

To CCM Comm.Bus

DFMD-160N-01M25

Some connectors introduce:

A. For new fresh motor terminal port (also for Anion generator) CN43: 1. Connect the fan motor to the port , no need care L/N of the motor ; 2. The output voltage is the power supply; 3. The fresh motor can not excess 200W or 1A , follow the smaller one ; 4. The new fresh motor will be worked when the indoor fan motor work ;when the indoor fan motor stops , the new fresh motor would be stopped ; 5. When the unit enter force cooling mode or capacity testing mode , the fresh motor isn’t work .

B For ALARM terminal port CN33 1. Provide the terminal port to connect ALARM ,but no voltage of the terminal port , the power from the ALARM system (not from the unit ) 2. Althought design voltage can support higher voltage ,but we strongly ask you connect the power less than 24V, current less than 0.5A 3. When the unit occurs the problem , the relay would be closed , then ALARM works

C. For remote control (ON-OFF) terminal port CN23 and short connector of J7 1. Remove the short connector of J7 when you use ON-OFF function; 2. When remote switch off (OPEN) ;the unit would be off; 3. When remote switch on (CLOSE) ;the unit would be on; 4. When close/open the remote switch, the unit would be responded the demand within 2 seconds; 5. When the remote switch on . you can use remote controller/ wire controller to select the mode what you want ;when the remote switch off , the unit would not respond the demand from remote controller/wire controller. when the remote switch off , but the remote controller / wire controller are on, CP code would be shown on the display board. 6.The voltage of the port is 12V DC , design Max.current is 5mA.

Outdoor Unit

Abbreviation CAP1, CAP2, CAP3,CAP4
FAN1 KM8 CT1, CT2 COMP L-PRO, K2 K1 TRANS T4 T3 XT1 XT2 XT4 K3 XP1~XP5,XT5~XT7

Paraphrase Capacitor
Outdoor Fan Motor Contactor
AC Current Detector Compressor
Low Pressure Switch/Shorting Stub High Pressure Switch/Shorting Stub
Power Transformer 10K RESISTANCE/Outdoor Ambient Temperature 10K RESISTANCE/Coil Temperature of Condenser
2-Way Terminal/4-Way Terminal 3-Way Terminal Terminal
Compressor Discharge Temperature/Shorting Stub Connectors

YFAD-100R-01M25

YFAD-100R-01T35

YFAD-140R-01T35

YFAD-160R-01T35

Refrigerant Cycle Diagrams

Heat pump

Model No.

Pipe Size(Diameter:ø) mm(inch)

Gas

Liquid

Piping length(m/ft) Elevation(m/ft) Rated Max. Rated Max.

YFAD-100R-01M25 19(3/4) 9.52(3/8) 5/16.4 30/98.4 0 20/65.6

YFAD-100R-01T35 19(3/4) 9.52(3/8) 5/16.4 30/98.4 0 20/65.6

Additional Refrigerant

30g/m (0.32oz/ft) 30g/m (0.32oz/ft)

Model No.
YFAD-140R-01T35 YFAD-160R-01T35

Pipe Size (Diameter:ø) mm(inch)

Gas

Liquid

Piping length(m/ft) Elevation(m/ft) Rated Max. Rated Max.

19(3/4) 9.52(3/8) 5/16.4 50/164 0 19(3/4) 9.52(3/8) 5/16.4 50/164 0

30/98.4 30/98.4

Additional Refrigerant
30g/m (0.32oz/ft) 30g/m (0.32oz/ft)

Capacity Tables

Cooling

INDOOR AIRFLOW
(CMH)
1160
1383

OUTDOOR DB()

INDOOR AIRFLOW (CMH)

ID WB

OUT-

DOOR

DB

ID DB

23.0

16.0 25.0 27.0

TC 11.08 11.19 11.31

15

S/T

0.78 0.89 1.00

PI

2.84 2.84 2.84

TC 10.95 11.07 11.18

20

S/T

0.78 0.89 1.00

PI

2.94 2.94 2.94

TC 10.46 10.58 10.69

25

S/T

0.79 0.91 1.00

PI

3.23 3.23 3.23

TC

9.98 10.06 10.18

1836

30

S/T

0.81 0.93 1.00

PI

3.54 3.54 3.54

TC

9.46 9.54 9.63

35

S/T

0.83 0.95 1.00

PI

3.87 3.87 3.87

TC

8.62 8.71 8.79

40

S/T

0.86 1.00 1.00

PI

4.42 4.42 4.42

TC

8.17 8.26 8.35

43

S/T

0.88 1.00 1.00

PI

4.75 4.75 4.75

TC:Total Cooling Capacity (kW) S/T:Sensible Cooling Capacity Ratio PI:Power Input(kW)

INDOOR AIRFLOW
(CMH)

ID WB

OUT-

()

DOOR

DB()

ID DB ()

23.0

16.0 25.0 27.0

TC 11.08 11.08 11.19

15

S/T

0.76 0.86 0.96

PI

2.84 2.84 2.84

TC 10.95 10.95 11.07

20

S/T

0.76 0.86 0.96

PI

2.94 2.94 2.94

TC 10.46 10.46 10.58

25

S/T

0.77 0.88 0.98

PI

3.23 3.23 3.23

TC

9.98 10.06 10.18

1700

30

S/T

0.79 0.90 1.00

PI

3.54 3.54 3.54

TC

9.46 9.54 9.63

35

S/T

0.80 0.92 1.00

PI

3.87 3.87 3.87

TC

8.62 8.71 8.79

40

S/T

0.83 0.96 1.00

PI

4.42 4.42 4.42

TC

8.17 8.26 8.35

43

S/T

0.85 0.98 1.00

PI

4.75 4.75 4.75

TC:Total Cooling Capacity (kW) S/T:Sensible Cooling Capacity Ratio PI:Power Input(kW)

INDOOR AIRFLOW

(CMH)
1149
1372

OUTDOOR DB()
15 20 25 30 35 40 43 15 20 25 30 35 40 43

INDOOR AIRFLOW
(CMH)

ID WB

OUT-

()

DOOR

DB()

ID DB ()

23.0

16.0 25.0 27.0

TC 11.08 11.19 11.31

15

S/T

0.78 0.88 0.99

PI

2.65 2.65 2.65

TC 10.95 11.07 11.18

20

S/T

0.78 0.88 0.99

PI

2.75 2.75 2.75

TC 10.46 10.58 10.69

25

S/T

0.79 0.90 1.00

PI

3.02 3.02 3.02

TC

9.98 10.06 10.18

1804

30

S/T

0.80 0.92 1.00

PI

3.32 3.32 3.32

TC

9.46 9.54 9.63

35

S/T

0.82 0.94 1.00

PI

3.62 3.62 3.62

TC

8.62 8.71 8.79

40

S/T

0.85 0.99 1.00

PI

4.13 4.13 4.13

TC

8.17 8.26 8.35

43

S/T

0.87 1.00 1.00

PI

4.44 4.44 4.44

TC:Total Cooling Capacity (kW) S/T:Sensible Cooling Capacity Ratio PI:Power Input(kW)

INDOOR AIRFLOW
(CMH)
1400
1800

OUTDOOR DB()
15 20 25 30 35 40 43 15 20 25 30 35 40 43

INDOOR AIRFLOW
(CMH)

ID WB

OUT-

()

DOOR

DB()

ID DB ()

23.0

16.0 25.0 27.0

TC 14.78 14.78 14.93

15

S/T

0.75 0.85 0.94

PI

3.89 3.89 3.89

TC 14.61 14.61 14.76

20

S/T

0.75 0.85 0.94

PI

4.03 4.03 4.03

TC 13.95 13.95 14.10

25

S/T

0.76 0.86 0.96

PI

4.44 4.44 4.44

TC 13.29 13.29 13.44

2150

30

S/T

0.77 0.88 0.98

PI

4.86 4.86 4.86

TC 12.63 12.75 12.86

35

S/T

0.78 0.89 1.00

PI

5.31 5.31 5.31

TC 11.52 11.63 11.75

40

S/T

0.81 0.93 1.00

PI

6.07 6.07 6.07

TC 10.91 11.02 11.14

43

S/T

0.83 0.95 1.00

PI

6.52 6.52 6.52

TC:Total Cooling Capacity (kW) S/T:Sensible Cooling Capacity Ratio PI:Power Input(kW)

INDOOR AIRFLOW

(CMH)
1490
1850

OUTDOOR DB()

INDOOR AIRFLOW (CMH)

ID WB

OUT-

()

DOOR

DB()

ID DB ()

23.0

16.0 25.0 27.0

TC 16.94 16.94 17.12

15

S/T

0.74 0.84 0.93

PI

4.62 4.62 4.62

TC 16.75 16.75 16.92

20

S/T

0.74 0.84 0.93

PI

4.78 4.78 4.78

TC 15.98 15.98 16.15

25

S/T

0.75 0.85 0.95

PI

5.27 5.27 5.27

TC 15.23 15.23 15.37

2400

30

S/T

0.76 0.87 0.97

PI

5.77 5.77 5.77

TC 14.45 14.60 14.74

35

S/T

0.78 0.89 0.99

PI

6.31 6.31 6.31

TC 13.15 13.28 13.40

40

S/T

0.81 0.92 1.00

PI

7.21 7.21 7.21

TC 12.47 12.59 12.70

43

S/T

0.82 0.94 1.00

PI

7.75 7.75 7.75

TC:Total Cooling Capacity (kW) S/T:Sensible Cooling Capacity Ratio PI:Power Input(kW)

7.2 Heating

INDOOR AIRFLOW
(CMH) 1160
1383
1836

OUTDOOR DB(°C)
-7.0 -5.6 -2.8 0.0 2.8 5.6 7.0 11.1 13.9 16.7 18.0 -7.0 -5.6 -2.8 0.0 2.8 5.6 7.0 11.1 13.9 16.7 18.0 -7.0 -5.6 -2.8 0.0 2.8 5.6 7.0 11.1 13.9 16.7 18.0

DFMD-100N-01M25+FFMD-100N-01M25

[SI_Unit]

HEATING PERFORMANCE AT INDOOR DRY BULB TEMPERATURE

TC:TOTAL CAPACITY IN KILOWATTS (KW)

PI:TOTAL POWER IN KILOWATTS (KW)

Indoor Conditions (DB °C )

Indoor Conditions (DB °C )

INDOOR AIRFLOW
(CMH) 950
1280
1700

OUTDOOR DB(°C)
-7.0 -5.6 -2.8 0.0 2.8 5.6 7.0 11.1 13.9 16.7 18.0 -7.0 -5.6 -2.8 0.0 2.8 5.6 7.0 11.1 13.9 16.7 18.0 -7.0 -5.6 -2.8 0.0 2.8 5.6 7.0 11.1 13.9 16.7 18.0

DFMD-100N-01M25+YFAD-100R-01M25

[SI_Unit]

HEATING PERFORMANCE AT INDOOR DRY BULB TEMPERATURE

TC:TOTAL CAPACITY IN KILOWATTS (KW)

PI:TOTAL POWER IN KILOWATTS (KW)

Indoor Conditions (DB °C )

Indoor Conditions (DB °C )

INDOOR AIRFLOW
(CMH) 1149
1372
1804

OUTDOOR DB(°C)

DFMD-100N-01T35+YFAD-100R-01T35

[SI_Unit]

HEATING PERFORMANCE AT INDOOR DRY BULB TEMPERATURE

TC:TOTAL CAPACITY IN KILOWATTS (KW)

PI:TOTAL POWER IN KILOWATTS (KW)

Indoor Conditions (DB °C )

Indoor Conditions (DB °C )

INDOOR AIRFLOW
(CMH) 1400
1800
2150

OUTDOOR DB(°C)

DFMD-140N-01M25+YFAD-140R-01T35

[SI_Unit]

HEATING PERFORMANCE AT INDOOR DRY BULB TEMPERATURE

TC:TOTAL CAPACITY IN KILOWATTS (KW)

PI:TOTAL POWER IN KILOWATTS (KW)

Indoor Conditions (DB °C )

Indoor Conditions (DB °C )

INDOOR AIRFLOW
(CMH) 1490
1850
2400

OUTDOOR DB(°C)

DFMD-160N-01M25

[SI_Unit]

HEATING PERFORMANCE AT INDOOR DRY BULB TEMPERATURE

TC:TOTAL CAPACITY IN KILOWATTS (KW)

PI:TOTAL POWER IN KILOWATTS (KW)

Indoor Conditions (DB °C )

Indoor Conditions (DB °C )

Capacity Correction Factor for Height Difference

Heat pump models

Model

18K Cooling

Indoor

Upper

Height

than

Outdoor 5

difference H (m) 0

Outdoor -5

Upper -10

than -15

Indoor 5
0.995 1.000 1.000

Pipe Length (m) 10/ 15

Height difference
H (m)

Heating
Indoor Upper than Outdoor
Outdoor Upper than Indoor

Model
Height difference
H (m)
Height difference
H (m)

24K Cooling

Indoor

Upper

15

than

10

Outdoor

5

0

Outdoor

-5

Upper

-10

than

-15

Indoor

Heating

Indoor

Upper

15

than

10

Outdoor 5

0

Outdoor

-5

Upper

-10

than

-15

Indoor

5
0.995 1.000 1.000
5
1.000 1.000 0.992

Pipe Length (m)

10

Model
Height difference
H (m)

36K

Cooling

Indoor

20

Upper

15

than

10

Outdoor

5

0

Outdoor

-5

Upper

-10

than

-15

Indoor -20

Heating

Indoor

20

Upper

15

than

10

Outdoor

Height

5

difference

0

H (m)

Outdoor

-5

Upper

-10

than

-15

Indoor -20

5
0.995 1.000 1.000
5
1.000 1.000 0.992

10
0.938 0.948 0.953 0.953 0.953
10
0.978 0.978 0.978 0.971 0.963

Pipe Length (m)

15

Model
Height difference
H (m)

48K

Cooling

Indoor

30

Upper

20

than

10

Outdoor

5

0

Outdoor

-5

Upper

-10

than

-20

Indoor -30

Heating

Indoor

30

Upper

20

than

10

Outdoor

Height

5

difference

0

H (m)

Outdoor

-5

Upper

-10

than

-20

Indoor -30

5
0.995 1.000 1.000
5
1.000 1.000 0.992

10
0.955 0.964 0.969 0.969 0.969
10
0.986 0.986 0.986 0.978 0.970

Pipe Length (m)

20

30

Model
Height difference
H (m)

60K

Cooling

Indoor

30

Upper

20

than

10

Outdoor

5

0

Outdoor

-5

Upper

-10

than

-20

Indoor -30

Heating

Indoor

30

Upper

20

than

10

Outdoor

Height

5

difference

0

H (m)

Outdoor

-5

Upper

-10

than

-20

Indoor -30

Pipe Length (m)

20

30

Noise Criterion Curves

Indoor Unit

Notes: -Sound measured at 1.5m away from the center of the unit. -Data is valid at free field condition -Data is valid at nominal operation condition -Reference acoustic pressure OdB = 20Pa -Sound level will vary depending on a range of factors such as the construction -(acoustic absorption coefficient) of particular room in which the equipment is installed. -The operating conditions are assumed to be standard.

Model

Noise level dB(A)

H

M

L

DFMD-100N-01M25

49

43

40

DFMD-100N-01T35

47

40.5

38

DFMD-140N-01M25

49

45

41

DFMD-160N-01M25

53

47

44

Outdoor Unit

Note: H= 0.5 × height of outdoor unit Notes: -Sound measured at 1.0m away from the center of the unit. -Data is valid at free field condition -Data is valid at nominal operation condition -Reference acoustic pressure OdB=20Pa -Sound level will vary depending on arrange off actors such as the construction (acoustic absorption coefficient) of particular room in which the equipment is installed. -The operating conditions are assumed to be standard.

Model YFAD-100R-01M25 YFAD-100R-01T35 YFAD-140R-01T35 YFAD-160R-01T35

Noise level dB(A) 63 63 63 62.8

Electrical Characteristics

Heat pump models

Type Phase

Frequency and Voltage

Circuit Breaker/ Fuse (A)

Indoor Unit Power Wiring (mm2)

Outdoor Unit Power Wiring (mm2)

Indoor/Outdoor Connecting Wiring (mm2)

Ground Wiring Strong Electric Signal Weak Electric Signal

18000 Btu/h 1-phase 220-240V, 50Hz 25/20 3×2.5 2.5 2×1.0/3×2.5 (2×0.75/2×0.5)

24000 Btu/h 1-phase 220-240V~,50Hz 32/25 3×2.5 2.5 3×1.0/3×2.5 (2×0.2)

36000 Btu/h 1-phase 220-240V, 50Hz 50/403×4.0 4.0 3×1.0/3×1.5 (2×0.2)

Type Phase

Frequency and Voltage

Circuit Breaker/ Fuse (A)

Indoor Unit Power Wiring (mm2)

Outdoor Unit Power Wiring (mm2)

Indoor/Outdoor Connecting Wiring (mm2)

Ground Wiring Strong Electric Signal Weak Electric Signal

36000 Btu/h 3-phase 380-415V, 50Hz 25/205×2.5 2.5 3×1.0/3×1.5

48000 Btu/h 3-phase 380-415V, 50Hz 32/25 5×2.5 2.5 3×1.0/5×2.5

60000 Btu/h 3-phase 380-415V, 50Hz 32/25 5×2.5 2.5 3×1.0/5×2.5

Static Pressure

18K
24K

30K/36K 48K/60K

Product Features
Contents
1. Operation Modes and Functions ………………………………………………………………59 1.1 Abbreviations ………………………………………………………………………………….59 1.2 Safety Features ………………………………………………………………………………..59 1.3 Display Function ………………………………………………………………………………59 1.4 Fan………………………………………………………………………………………………..59 1.5 Cooling Mode …………………………………………………………………………………59 1.6 Heating Mode …………………………………………………………………………………59 1.7 Auto Mode……………………………………………………………………………………..60 1.8 Drying Mode …………………………………………………………………………………..60 1.9 Timer Function ………………………………………………………………………………..60 1.10 Sleep Function…………………………………………………………………………………60 1.11 Auto- Restart……………………………………………………………………………………61 1.12 Follow Me ………………………………………………………………………………………61 1.13 Drain Pump Control………………………………………………………………………….61
2. Remote Controller Functions ……………………………………………………………………62 2.1 LCD Wired Remote Controller ……………………………………………………………62 2.2 Centralized Controller ………………………………………………………………………74

Operation Modes and Functions

Abbreviation

Unit element abbreviations

Display Function

Unit display functions

Abbreviation T1 T2 T3 T4 T5

Element Indoor room temperature Coil temperature of evaporator Coil temperature of condenser Outdoor ambient temperature Compressor discharge temperature

Safety Features

Compressor three-minute delay at restart Compressor functions are delayed for up to one minute upon the first startup of the unit, and are delayed for up to three minutes upon subsequent unit restarts. Phase Check Function(for 3 phase models) If the phase sequence is detected wrong or lack of 1 or 2 phase, the unit won’t start and there is error code displayed on outdoor PCB.

When fan mode is activated

The outdoor fan and compressor are stopped. · Temperature control is disabled and no temperature setting is displayed. · The indoor fan speed can be set to high, medium, low, or auto. · The louver operations are identical to those in cooling mode.

Cooling Mode

Low Pressure Check Function(For 36K~60K)

The low pressure switch should be always closed. If it is open, the system will stop until the fault is cleared. During defrosting procedure , 4 minutes after defrosting ends and 5 minutes after compressor is on in heating mode, low pressure switch won’t be checked.

Note: The system will not check if the protection could be cleared in 30 seconds after the protection occurs. If this protection occurs 3 times, it won’t recover automatically until the main power is cut off.

Over-current protection

When compressor is running, if the current is over twice of the rated for 3 seconds, the compressor will stop and an error code will be displayed on the outdoor PCB. If the current becomes normal, the indoor sends signal to the outdoor, the outdoor will display normally. Open Circuit/Disconnection Sensor Protection.

Compressor Control

When T1-Ts-T is lower than setting value, the compressor ceases operation.
When T1-Ts-T is higher than setting value, the compressor continues operation.

Indoor Fan Control

In cooling mode, the indoor fan operates continuously. The fan speed can be set to high, medium, low or auto..
The auto fan acts according to the value of T1TS+T1.

Outdoor Fan Control

For single-fan outdoor units, the outdoor fan will run following the compressor except when AC is in evaporator high temperature protection in heating mode ,condenser high temperature protection in cooling mode, defrosting mode and the current protection.
For double-fan units, the outdoor fans will run according to T3.

Evaporator Temperature Protection

When evaporator temperature drops below a configured value for some time, the compressor ceases operations.

Product Features

Condenser Temperature Protection When condenser temperature is more than setting value, the compressor ceases operations. Heating Mode(Heat pump models)

Compressor Control

Once the compressor starts up, it keeps running 7 minutes, then it will follow the below rules: · When T1-Ts is higher than setting value, the compressor and outdoor fan cease operations. When T1-Ts is lower than setting value, the compressor and outdoor fan restart up.

Indoor Fan Control: When the compressor is on, the fan speed can be set to high, medium, low, or auto..And the anti-cold wind function has the priority. The auto fan acts according to the value of T1TS+T2.

Fan Control: For single-fan outdoor units, the outdoor fan will run following the compressor except when AC is in evaporator high temperature protection in heating mode ,condenser high temperature protection in cooling mode, defrosting mode and the current protection. · For double-fan units, the outdoor fans will run according to T4.

Defrosting mode

The unit enters defrosting mode according to changes in the temperature value of T3, the temperature value of T4 as well as the compressor running time. · If any one of the following conditions is satisfied, defrosting ends and the machine switches to normal heating mode: · T3 rises above TE18°C. · The unit runs for 10 minutes consecutively in defrosting mode. ·

Operation mode is changed to other modes

Evaporator Temperature Protection When the evaporator temperature exceeds a preset protection value, the compressor and outdoor fan cease operations.

Auto Mode

This mode can be selected with the remote controller and the temperature setting can be adjusted between 17~30
In auto mode, the machine selects cooling, heating, or fan-only mode on the basis of T (T =T1-Ts).

Running mode

Cooling Fan-only Heating

*Heating:** In auto mode, cooling only models run the fan.

Indoor fans run at the auto fan speed of the relevant mode.
The louver operates the same as in relevant mode.
If the machine switches mode between heating and cooling, the compressor pauses for a certain period of time intermittently and then selects a mode based on T1-Ts.
If the setting temperature is modified, the machine selects a new running function.

Drying Mode

Indoor fan speed is fixed at low and cannot be changed.
All protections are activated and operate the same as they do in cooling mode.

Timer Function

The timing range is 24 hours.
Timer On. The machine turns on automatically at the preset time.
Timer Off. The machine turns off automatically at the preset time.
Timer On/Off. The machine turns on automatically at the preset On Time, and then turns off automatically at the preset Off Time.
Timer Off/On. The machine turns on automatically at the preset Off Time and then turns off automatically at the preset On Time.
The timer does not change the unit operation mode. If the unit is off now, it does not start up immediately after the “timer off” function is set. When the setting time is reached, the timer LED switches off and the unit running mode remains unchanged.
The timer uses relative time, not clock time

Sleep Function

The sleep function is available in cooling, heating, or auto mode.
The operational process for sleep mode is as follows:

Product Features

When cooling, the temperature rises 1 (to not higher than 30) every hour. After 2 hours, the temperature stops rising and the indoor fan is fixed to auto speed.
When heating, the temperature decreases 1 (to not lower than 17) every hour. After 2 hours, the temperature stops decreasing and the indoor fan is fixed at auto speed. Anti-cold wind function takes priority.
The operating time for sleep mode is 7 hours, after which, the unit exits this mode and switches off.
The timer setting is available in this mode.

Auto-Restart

The indoor unit has an auto-restart module that allows the unit to restart automatically. The module automatically stores the current settings (not including sleep mode) and, in the case of a sudden power failure, will restore those setting automatically within 3 minutes after power returns.
If the unit was in forced cooling mode, it will run in this mode for 30 minutes and turn to auto mode with temperature set to 24.
If there is a power failure while the unit is running, the compressor starts 3 minutes after the unit restarts. If the unit was already off before the power failure, the compressor starts 1 minute after the unit restarts.

Follow Me

If you press “Follow Me” on the remote, the indoor unit will beep. This indicates the follow me function is active.
Once active, the remote control will send a signal every 3 minutes, with no beeps. The unit automatically sets the temperature according to the measurements from the remote control.
The unit will only change modes if the information from the remote control makes it necessary, not from the unit’s temperature setting.

Drain Pump Control (Optional)

Use the water-level switch to control drain pump.
The system checks the water level every 5 seconds.
When the A/C operates in cooling (including auto cooling) or forced cooling mode, the pump begins running immediately and continuously until cooling stops.
If the water level increases up to the control point, the LED displays an alarm code and the drain pump opens and continually monitors the water level. If the water level falls and LED alarm code is no longer displayed (drain pump close delay is 1 minute), the unit goes back into its last mode. Otherwise, the entire system (including the pump) stops and the LED displays an alarm again after 3 minutes.

Product Features

Remote Controller Functions

LCD Wired Remote Controller

LCD Wired Remote Controller KJR-12B/DP(T) (Standard) The KJR-12B/DP(T) wired remote controller is standard for Duct type.

Buttons and Functions

MODE BUTTON · Used to select the operating mode
AUTO COOL DRY HEAT FAN · For cooling-only units, there is no HEAT function.

ON/OFF BUTTON · Used to start/stop the air conditioner.
ADJUST BUTTON

TIMER ON BUTTON

Used to automatically turn on the air conditioner at a specified time.

TIMER OFF BUTTON

Used to automatically turn off the air conditioner at a specified time.

FOLLOW ME BUTTON

Allows the remote control to act as a remote thermostat and relay temperature information from its current location.

TIMER ON
TIMER OFF

FOLLOW ME
AUXLI HEATER

ECO

MODE

FANS PEED

SWING

TEMP

RESET LOCK

AUXILIARY ELECTRICAL HEATER

The Auxiliary Electric Heater warms up the unit in cold climates. · If pressed during HEAT mode, the electric heater function becomes ineffective.

RESET BUTTON

Used to restore the system to its default settings.
Press these two buttons at the same time to switch between Celsius and Fahrenheit (some models)

SWING BUTTON

The SWING button starts and stops the louver movement and sets the desired airflow direction.

ECONOMY BUTTON

Used to activate/deactivate ECONOMY Mode, in which the unit maintains a comfortable temperature during sleeping hours.

FAN SPEED BUTTON

Used to select the fan speed.

Lo wM

High

LOCK BUTTON

Used to lock/unlock the current setting.

LCD Screen

Operation mode Displays the selected operating mode

Follow me Displayed when the FOLLOW ME feature is activated

Timer

The “ON” sign lights up when the TIMER ON function is activated The “OFF” sign lights up when the TIMER OFF function is activated

ON/OFF

Displayed when the air conditioner is on

Fan speed

Displays the selected fan speed

Lock

Displayed when the LOCK mode is on

Temperature display

Displays the current set temperature

Product Features

Installation

Dimensions

120mm (4.7″)

120mm (4.7″)

21mm (0.8″)
51.1mm (2″)

13.1mm (0.5″)

1199.5.5mmmm (0.7″)
85.5mm (3.3″) 50mm (1.9″)

Wiring diagram

Refer to the following diagram to wire the wall-mounted remote control to the indoor unit.

Wire Joint, 5p

Infrared Pipe

+5V

Wire Controller

5-Core Shield Cable RUN GND

Indoor Unit Switch Board

Indoor Unit

Installation Diagram

Connect the wire from the display panel of the indoor unit to a connecting cable. Then connect the other side of the connecting cable to the remote control.
The connective wires group(6m) 5-core wire
Display board

Note: Be sure to reserve a length of the connecting wire for periodic maintenance.

Product Features

Putty Trap

Putty

Putty

Trap Trap

_ Note: _DO NOT allow water to enter the remote control. Use the trap and putty to seal the wires.

For exposed mounting, cut holes on four of the sides according to the picture below.
Cut three holes for wire outlet
Cut one holes for wire outlet
For shielded wiring, please refer to the picture below.
Embedded switch box wiring

Wiring through the wall

Wiring hole

Wall hole and wiring hole Diameter of wall hole: 2cm

LCD Wired Remote Controller KJR-120C/TF-E(Optional) The KJR-120C/TF-E wired remote controller is optional for all types.

Buttons and Functions

POWER button Turn on of turn off the unit. 2. MODE(A/B) button Used to select the operation mode: Auto / Cooling / Drying / Heating / Fan; Hold to active the operation of auto-lifting panel when off 3. Adjust button To set temperature, time and timer; set up or down the auto-lifting panel 4. FAN SPEED button Used to select the fan speed. 5. Up-down airflow direction and swing Button Press for adjusting the angel of louver, hold for vertical swing; individual louver control for cassette panel 6. Left-righ airflow swing Button Press for activing the horizontal swing

FOLLOW ME(PTC) button Allows the remote control to act as a remote thermostat and send temperature information from its current location. 8. TIMER button To set timer on and timer off time of one day 9. DELAY/DAY OFF button To set 1 to 2 hours delay off for each day or a whole day off in a weekly timer schedule 10. CONFIRM button To confirm an setting or call up the menu 11. BACK button Back to previous operation or superior menu 12. COPY button Copy timer setting of one day to another in weekly schedule setting 13 Infrared remote receiver (on some models)

LCD Screen

Operation mode indication
Fan speed indication
Left-right swing indication
Up-down swing indication
Faceplate function indication
Main unit and secondary unit indication
Follow me function indication
PTC function indication
C° / F° indication
Temperature display
Lock indication
Room temperature indication
Clock display
On/Off timer
Timer display

Product Features

Dimensions

Wiring diagram

Refer to the following diagram to wire the wall-mounted remote control to the indoor unit.

red black yellow brown
Wire controller

Insert of the mainboard CN40 red black yellow brown
Indoor unit mainboard

Installation Diagram

Connect the female joint of wires group from the mainboard with the male joint of connective wires group. Then connect the other side of connective wires group with the male joint of wires group leads from wire controller.

4-core shielding wire

The connection cable(6m)

Mainboard

CN40

Page 67

Product Features

Putty Trap

Putty

Putty

Note: DO NOT allow water to enter the remote control. Use the trap and putty to seal the wires. For exposed mounting, four outletting positions. There are three need cutting.

Cutting place of top side wire outlet

Cutting place of left Cutting place of right

side wire outlet
side wire outlet

For shielded wiring, please refer to the picture below.

Embedded switch box wiring

Wiring through the wall

Wiring hole

Wall hole and wiring hole

LCD Wired Remote Controller KJR-120G/TF-E(Optional) The KJR-120G/TF-E wired remote controller is optional for all types. i) Buttons and Functions

Product Features

Swing

Timer

Back/Turbo

Copy/ Follow me

(Lock)

MODE button Used to select the operation mode: Auto / Cooling / Drying / Heating / Fan; Hold to active the operation of auto-lifting panel when off
POWER button Turn on of turn off the unit.
Adjust button To set temperature, time and timer; set up or down the auto- lifting panel
FAN SPEED button Used to select the fan speed.
Swing Button Press to active vertical swing, hold for horizontal swing

TIMER button To set timer on and timer off time of one day 7.DELAY/DAY OFF button To set 1 to 2 hours delay off for each day or a whole day off in a weekly timer schedule
COPY/FOLLOW ME button To copy timer setting of one day to another in weekly schedule setting; To active the follow me function while in normal operation.
BACK/TURBO button Back to previous operation or superior menu To active turbo mode while in normal operation
CONFIRM button To confirm an setting or call up the superior menu

LCD Screen

Operation mode indication
Fan speed indication
Left-right swing indication
Up-down swing indication
Faceplate function indication
Main unit and secondary unit indication
Follow me function indication
Turbo/PTC function indication
C° / F° indication
Temperature display
Lock indication
Room temperature indication
Clock display
On/Off timer
Timer display

Installation

Dimensions

120mm (4.7″)

18.5mm (0.7″)

123mm (4.8″)

46mm (1.8″)
83.5mm (3.3″)

62mm (2.4″)
· Wiring diagram

Connection

For Cassette: The wired controller connects to main control board directly. Main control board

HA HB Wired controller

For Duct, Ceiling& floor: The wired controller connects to terminal board, terminal board connects to main control board.

Terminal board

Main control board

Address setting

Unit1 HA HB

Unit2 HA HB

Unit16 HA HB

HA HB Wired controller

One non-polarity controller can control up to 16 indoor units. b. When the non-polarity controller is connected to several units, every air-conditioner in network has only one network address to distinguish each other. c. Address code of air-conditioner in LAN is set by code switch ENC1(Duct and Ceiling& Floor) or ADSS(Cassette) of the indoor unit, and the set range is 0-15. d. Note: The indoor units are controlled at the same time, not independently. The purpose of setting network address is identify the unit when error occurs.

Putty Trap

Putty Putty Trap Trap

Note: DO NOT allow water to enter the remote control. Use the trap and putty to seal the wires.

For wiring the indoor unit, there are three methods: · From the rear; · From the bottom; · From the top; · From the top center.

Accessories

Name Soundproof / insulation sheath Tubing & Fittings Seal sponge (some models) Orifice (some models) Drainpipe Fittings Drain joint (some models) (for cooling & heating) Seal ring (some models)

Shape Quantity 2 1 1 1 1 EMC Magnetic Ring (some models) Others

Magnetic ring(Wrap the electric wires S1 & S2 ( P & Q & E ) around the magnetic ring twice)
Magnetic ring(Hitch on the connective cable between the indoor unit and outdoor unit after installation.)

Installation manual Transfer connector(12.7-15.9)/(0.5in0.63in)(Packed with the indoor unit )

NOTE: Pipe size may differ from appliance to appliance. To meet different pipe size requirements, sometimes the pipe connections need a transfer connector installed on the outdoor unit. Transfer connector(6.35-9.52)/(0.25in0.375in)(Packed with the indoor unit )
NOTE: Pipe size may differ from appliance to appliance. To meet different pipe size requirements, sometimes the pipe connections need a transfer connector installed on the outdoor unit. Transfer connector(9.52-12.7)/(0.375in0.5in)(Packed with the indoor unit )
NOTE: Pipe size may differ from appliance to appliance. To meet different pipe size requirements, sometimes the pipe connections need a transfer connector installed on the outdoor unit.
Connecting wire for display (2m)

S1&S2(P&Q&E) –
(on some models)
(on some models)
(on some models) 1(on some models)

Cord protection rubber ring

1(on some models)

Display panel *Just for testing purposes only

1(on some modelsKJR-120G,KJR-120H)

Optional accessories:

· There are two types of remote controls: wired and wireless. · Select a remote controller based on customer preferences and requirements and install in an appropriate place. · Refer to catalogues and technical literature for guidance on selecting a suitable remote controller.

Install the indoor unit

Install the outdoor unit

Evacuate the refrigeration system Connect the wires

Location selection

2.1 Unit location selection can refer to installation manual.

2.2 DO NOT install the unit in the following locations:
· Where oil drilling or fracking is taking place. · Coastal areas with high salt content in the air. · Areas with caustic gases in the air, such as near hot
springs. · Areas with power fluctuations, such as factories. · Enclosed spaces, such as cabinets. · Areas with strong electromagnetic waves. · Areas that store flammable materials or gas. · Rooms with high humidity, such as bathrooms or laundry rooms. · If possible, DO NOT install the unit where it is ex- posed to direct sunlight.

DO NOT install the rows of series like following figure.

2.3 The minimum distance between the outdoor unit and walls described in the installation guide does not apply to airtight rooms. Be sure to keep the unit unobstructed in at least two of the three directions (M, N, P)

60 cm / 23.6″ above
Installation

M 30 cm / 11.8″ on left N 200 cm / 78″ in front

30 cm / 11.8″ from back wall
P 60 cm / 23.6″ on right

2.5 If the location is exposed to strong winds (for example: near a seaside), the unit must be placed against the wall to shelter it from the wind. If necessary, use an awning.

2.4 Rows of series installation

The relations between H, A and L are as follows.

L H L > H

L

A

L 1/2H

25 cm / 9.8″ or more

1/2H < L H

30 cm / 11.8″ or more

Can not be installed

DO NOT Strong wind

Page 78

3. Indoor Unit Installation

3.1 Service space for indoor unit

20cm or more

30cm or more

positions in the internal ceiling. Be sure to hold the drill at a 90° angle to the ceiling.
6. Secure the bolt using the included washers and nuts.
7. Install the four suspension bolts.
8. Mount the indoor unit with at least two people to lift and secure it. Insert suspension bolts into the unit’s hanging holes. Fasten them using the washers and nuts provided.

60cmX60cm checking orifice

3.2 Hang Indoor Unit
1.Please refer to the following diagrams to locate the four positioning screw bolt hole on the ceiling. Be sure to mark the areas where ceiling hook holes will be drilled.
For A6 Duct,

Capacity(KBtu/h)

Size of mounted plug

2. Install and fit pipes and wires after you have finished installing the main body. When choosing where to start, determine the direction of the pipes to be drawn out.

Especially in cases where there is a ceiling involved, align the refrigerant pipes, drain pipes, and indoor and outdoor lines with their connection points before mounting the unit..

3. Install hanging screw bolts.

1. Cut off the roof beam.

2. Strengthen the point at which the cut was made. Consolidate the roof beam..

4. After you select an installation location,align the refrigerant pipes, drain pipes, as well as indoor and outdoor wires with their connection points before mounting the unit..

5. Drill 4 holes 10cm (4″) deep at the ceiling hook

9. Mount the indoor unit onto the hanging screw bolts with a block. Position the indoor unit flat using a level indicator to prevent leaks.

Shockproof cushion

Screw nut

Washer

Overhang part

Hanging screw bolt

Note: Confirm the minimum drain tilt is 1/100 or more.

3.3 Duct and accessories installation

1. Install the filter(optional) according to air inlet size.

2. Install the canvas tie-in between the body and duct.

3. The air inlet and air outlet duct should be far enough apart enough to a avoid air passage short-circuit.

4. Connect the duct according to the following

diagram.

Canvas tie-in Canvas tie-in

Isolation booth

Air outlet

Air inlet

Isolation booth checking orifice

Air dust filter

Change the fan motor static pressure according to external duct static pressure.

NOTE

Do not put the connecting duct weight on the indoor unit.
When connecting the duct, use an nonflammable canvas tie-in to prevent vibrating.
When connecting duct, install in place prone to takedown for maintenance.
Change the fan motor static pressure corresponding to external duct static pressure.
If installed in place like meeting room where noise is easy to be perceived, design isolation booth and internal duct underlayer to muffle the duct system and weaken the air encounter noise in the duct.

Adjust the air inlet direction(From rear side to under-side.)
Take off ventilation panel and flange, Air return flange

Ventilation panel

Air return flange 3. When installing the filter mesh, fit it into the flange as illustrated in the following figure. Or Ventilation panel

Ventilation panel

Bend the rear ventilation panel 90 degrees along the dotted line into a descending ventilation panel.(some models)

Air return flange

_ NOTE: _All the figures in this manual are for demonstration purposes only. The air conditioner you have purchased may be slightly different in design, though similar in shape.
3.5 Fresh air duct installation Dimension : Duct joint for fresh air

Installation

9-12k
Ø92mm(3.62″)
2. Change the mounting positions of ventilation panel and air return flange .

Ø113mm(4.45″) Page 80

18-60k
Ø125mm(4.92″)

Ø160mm(6.3″)

Connector A

3.6 Horizontal Installation
3.6.1 With External pump (9K, 12K models)
Cut both ends of the rubber hose into a straight one, use it to connect the drain Connector A and the external pump and safety it with clamps on both ends. Then connect the drainpipe to the Connector B.

Connector D Connector B
Connector C Hose
Plug the external pump to the “PUMP” pin and the water level sensor to the “CN5” to enable the pump.
Remove the cover
Unplug the “PUMP” pin Short connect the “CN5”
Connector B Pump port Clamps
Connector A

With Built-in pump (24K, 36K, 48K models)

Drain connector A, B & C are covered with caps originally. Connect the drainpipe to the connector D.

With External pump (18K model only)

Drain connector A, B & C are covered with caps originally. Take the cap on drain connector B off, connect the external pump to drain connector B using a hose & two hoseclamps. Then connect the drainpipe to the connector D.

Connector A
Connector B Connector C

Vertical Installation

No need pump (Disable pump) The pump must be disabled while the unit is installed vertically or the pump assembly is removed from its original position. Open the cover of E-Parts Box assembly, unplug the “PUMP” pin to disable the pump function, and short connect “CN5” plug to disable the water level sensor. (see Fig. 1) 3.7.2 Drain pipe connecting

When installed vertically (up flow), the pump must be Bolt pitch disabled firstly. Follow the 3.7.1 steps to disable the pump. For the unit with external pump (9K ,12K &18K models), the whole pump assembly can be removed. Then take the cap on drain connector off and connect the drainpipe to drain connector.

Connector

Connector Connector

Capacity(kBtu/h)

Install Outdoor Unit Fix the outdoor unit with anchor bolts(M10)

Outdoor unit installation(Side Discharge Unit)

Service space for outdoor unit

Caution

Since the gravity center of the unit is not at its physical center, so please be careful when lifting it with a sling.
Never hold the inlet of the outdoor unit to prevent it from deforming.
Do not touch the fan with hands or other objects.
Do not lean it more than 45, and do not lay it sidelong.
Make concrete foundation according to the specifications of the outdoor units.
Fasten the feet of this unit with bolts firmly to prevent it from collapsing in case of earthquake or strong wind.

Drainage Pipe Installation

Install the drainage pipe as shown below and take measures against condensation. Improperly installation could lead to leakage and eventually wet furniture and belongings.

Installation principle

Ensure at least 1/100 slope of the drainage pipe · Adopt suitable pipe diameter · Adopt nearby condensate water discharge

Considering the pipeline route and elevation

Before installing condensate water pipeline, determine its route and elevation to avoid intersection with other pipelines and ensure slope is straight.

Drainage pipe selection

The drainage pipe diameter shall not small than the drain hose of indoor unit
According to the water flowrate and drainage pipe slope to choose the suitable pipe, the water flowrate is decided by the capacity of indoor unit.

Relationship between water flowrate and capacity of indoor unit

Capacity (kBtu)
Water flowrate (l/h)

According to the above table to calculate the total water flowrate for the confluence pipe selection.

For Vertical drainage pipe (The following table is for reference)

Reference

PVC pipe

value of inner diameter of

Allowable maximum water flowrate (l/h)

Attention: Adopt PVC40 or bigger pipe to be the main pipe.

Individual design of drainage pipe system.
The drainage pipe of air conditioner shall be installed separately with other sewage pipe, rainwater pipe and drainage pipe in building.
The drainage pipe of the indoor unit with water pump should be apart from the one without water pump.

Supporter gap of drainage pipe

In general, the supporter gap of the drainage pipe horizontal pipe and vertical pipe is respectively 1m~1.5m and 1.5m~2.0m.
Each vertical pipe shall be equipped with not less than two hangers.
Overlarge hanger gap for horizontal pipe shall create bending, thus leading to air block.

For horizontal drainage pipe (The following table is for reference)

PVC pipe
PVC25 PVC32 PVC40 PVC50 PVC63

Reference value of inner diameter of pipe (mm) 20 25 31 40 51

Allowable maximum water flowrate (l/h)

Slope Slope 1/50 1/100

Remark
For branch pipe
Could be used for confluence pipe

The horizontal pipe layout should avoid converse flow or bad flow

Attention: Adopt PVC40 or bigger pipe to be the main pipe.

Each indoor unit of the system should be installed it. · The installation should be considering the convenience for future cleaning.

Installation

The correct installation will not cause converse water flow and the slope of the branch pipes can be adjusted freely
The false installation will cause converse water flow and the slope of the branch pipe can not be adjusted.

Water storage pipe setting

If the indoor unit has high extra static pressure and without water pump to elevate the condensate water, such as high extra static pressure duct unit , the water storage pipe should be set to avoid converse flow or blow water phenomena.

The end of drainage pipe shall not contact with ground directly.

Water leakage test

After finishing the construction of drainage pipe system, fill the pipe with water and keep it for 24 hours to check whether there is leakage at joint section.

Lifting pipe setting of indoor unit with water pump

The length of lifting pipe should not exceed 750mm.
The drainage pipe should be set down inclined after the lifting pipe immediately to avoid wrong operation of water level switch.
Refer the following picture for installation reference.

Water discharge test Check that the drainpipe is unhindered. This test should be performed on newly built houses before the ceiling is paved. 2.1 Units without a pump

Stow tube

Fill the water pan with 2 liters of water.
Check that the drainpipe is unhindered

Units with a pump

Remove the test cover.
Fill the water pan with 2 liters of water.

Blowhole setting

For the concentrated drainage pipe system, there should design a blowhole at the highest point of main pipe to ensure the condensate water discharge smoothly.
The air outlet shall face down to prevent dirt enter-Stow tube

Turn on the unit in COOLING mode. You will hear the drain pump.Check whether the water is discharged properly (a 1-minute lag is possible, depending on the length of the drain pipe), Check whether water leaks from
the joints.
Turn off the air conditioner and put the cap back on. · After turn off the air conditioner 3 minutes, check whether there is anything abnormal. If drainage pipes have not been distributed properly, over back-flow water shall cause the flashing of alarm indicator at remote-controlled receiving board and even water shall run over the water collector. · Continuously infusing water until water level alarmed, check whether the drainage pump could discharge water at once. If water level does not decline under warning water level 3 minutes later, it shall cause shutdown of unit. When this situation happens, the normal startup only can be recovered by turning down power supply and eliminating accumulated water.

Note: Drain plug at the main water-containing plate is used for eliminating accumulated water in water containing plate when maintaining air conditioner fault. During normal operation, the plug shall be filled in to prevent leakage.

Refrigerant Pipe Installation

Maximum length and drop height
Ensure that the length of the refrigerant pipe, the number of bends, and the drop height between the indoor and outdoor units meets the requirements shown in the following table.

Measure the necessary pipe length.
Cut the selected pipe with pipe cutter · Make the section flat and smooth.

90°

Oblique Rough Warped

Capacity(kBtu/h)

Max. Length (m/ft)

Max. Elevation (m/ft)

18~24 30~36 48~60

caution

25/82.0 30/98.4 50/164

15/49.2 20/65.6 30/98.4

The capacity test is based on the standard length and the maximum permissive length is based on the system reliability.
Oil traps
If oil flows back into the outdoor unit’s compressor, this might cause liquid compression or deterioration of oil return. Oil traps in the rising gas piping can prevent this.

An oil trap should be installed every 6m(20ft) of vertical suction line riser (<36000Btu/h unit).

An oil trap should be installed every 10m(32.8ft) of vertical suction line riser (36000Btu/h unit).

Indoor unit/ Outdoor unit

Insulate the copper pipe

Before test operation, the joint parts should not be heat insulated.

Flare the pipe

Insert a flare nut into the pipe before flaring the pipe
According to the following table to flare the pipe.

Pipe diameter Flare dimension A (mm/inch) (inch(mm))

Min

Max

1/4″ (6.35)

8.4/0.33

8.7/0.34

Flare shape

3/8″ (9.52) 1/2″ (12.7) 5/8″ (15.9) 3/4″ (19)

13.2/0.52 16.2/0.64 19.2/0.76 23.2/0.91

13.5/0.53 16.5/0.65 19.7/0.78 23.7/0.93

7/8″ (22)
26.4/1.04
26.9/1.06

Indoor unit/ Outdoor unit

6m/20ft (36000Btu/h unit) 10m/32.8ft (36000Btu/h unit)

After flared the pipe, the opening part must be seal by end cover or adhesive tape to avoid duct or exogenous impurity come into the pipe.
Drill holes if the pipes need to pass the wall.
According to the field condition to bend the pipes so that it can pass the wall smoothly. 6m/20ft (36000Btu/h unit) 10m/32.8ft (36000Btu/h unit)

Bind and wrap the wire together with the insulated pipe if necessary. Set the wall conduit.

Set the supporter for the pipe.

The procedure of connecting pipes

Choose the pipe size according to the specification table. 2.Confirm the cross way of the pipes.

Locate the pipe and fix it by supporter

For horizontal refrigerant pipe, the distance between supporters should not be exceed 1m.
For vertical refrigerant pipe, the distance between supporters should not be exceed 1.5m.

Connect the pipe to indoor unit and outdoor unit by using two spanners.

Be sure to use two spanners and proper torque to fasten the nut, too large torque will damage the bellmouthing, and too small torque may cause leakage. Refer the following table for different pipe connection.

Pipe Diameter

1/4″ (6.35) 3/8″ (9.52) 1/2″ (12.7) 5/8″ (15.9) 3/4″ (19) 7/8″ (22)

Torque

N.m(lb.ft)
15~16 (11~11.8)
25~26 (18.4~19.18)
35~36 (25.8~26.55)
45~47 (33.19~34.67)
65~67 (47.94~49.42)
75-85 (55.3-62.7)

Sketch map and keep vacuum pump running for 1hour (vacuum degree of vacuum pump shall be reached -755mmHg).
If the vacuum degree of vacuum pump could not reach -755mmHg after 1 hour of drying, it indicates that there is moisture or leakage in pipeline system and need to go on with drying for half an hour.
If the vacuum degree of vacuum pump still could not reach -755mmHg after 1.5 hours of drying, check whether there is leakage source.
Leakage test: After the vacuum degree reaches -755mmHg, stop vacuum drying and keep the pressure for 1 hour. If the indicator of vacuum gauge does not go up, it is qualified. If going up, it indicates that there is moisture or leak source.

Special vacuum drying The special vacuum drying method shall be adopted when:

Finding moisture during flushing refrigerant pipe.

Vacuum Drying and Leakage Checking

Conducting construction on rainy day, because rain water might penetrated into pipeline.
Construction period is long, and rain water might penetrated into pipeline.

Purpose of vacuum drying

Eliminating moisture in system to prevent the phenomena of ice-blockage and copper oxidation. Ice-blockage shall cause abnormal operation of system, while copper oxide shall damage compressor.
Eliminating the non-condensable gas (air) in system to prevent the components oxidizing, pressure fluctuation and bad heat exchange during the operation of system.

Selection of vacuum pump

The ultimate vacuum degree of vacuum pump shall be -756mmHg or above.
Precision of vacuum pump shall reach 0.02mmHg or above.

Operation procedure for vacuum drying

Due to different construction environment, two kinds of vacuum drying ways could be chosen, namely ordinary vacuum drying and special vacuum drying.
Rain water might penetrate into pipeline during construction.

Procedures of special vacuum drying are as follows:

Vacuum drying for 1 hour.
Vacuum damage, filling nitrogen to reach 0.5Kgf/cm2 .
Because nitrogen is dry gas, vacuum damage could achieve the effect of vacuum drying, but this method could not achieve drying thoroughly when there is too much moisture. Therefore, special attention shall be drawn to prevent the entering of water and the formation of condensate water.

Vacuum drying again for half an hour

If the pressure reached -755mmHg, start to pressure leakage test. If it cannot reached the value, repeat vacuum damage and vacuum drying again for 1 hour.

Leakage test: After the vacuum degree reaches -755mmHg, stop vacuum drying and keep the pressure for 1 hour. If the indicator of vacuum gauge does not go up, it is qualified. If going up, it indicates that there is moisture or leak source.

Ordinary vacuum drying

When conduct first vacuum drying, connect pressure gauge to the infusing mouth of gas pipe and liquid pipe,

Additional Refrigerant Charge

After the vacuum drying process is carried out, the additional refrigerant charge process need to be performed. The outdoor unit is factory charged with refrigerant. The additional refrigerant charge volume is decided by the diameter and length of the liquid pipe between indoor and outdoor unit. Refer the following formula to calculate the charge volume.

Diameter of liquid pipe (mm)

Formula

6.35

V=15g/m×(L-5)

9.52

V=30g/m×(L-5)

12.7

V=65g/m×(L-5)

V: Additional refrigerant charge volume (g).

L : The length of the liquid pipe (m).

Note

Refrigerant may only be charged after performed the vacuum drying process
Always use gloves and glasses to protect your hands and eyes during the charge work.
Use electronic scale or fluid infusion apparatus to weight refrigerant to be recharged. Be sure to avoid extra refrigerant charged, it may cause liquid hammer of the compressor or protections.
Use supplementing flexible pipe to connect refrigerant cylinder, pressure gauge and outdoor unit. And The refrigerant should be charged in liquid state. Before recharging, The air in the flexible pipe and manifold gauge should be exhausted.
After finished refrigerant recharge process, check whether there is refrigerant leakage at the connection joint part.(Using gas leakage detector or soap water to detect).

Engineering of Insulation

Insulation of refrigerant pipe

Operational procedure of refrigerant pipe insulation

Cut the suitable pipe insulation (except joint section) flare the pipe piping layout and connection vacuum drying insulate the joint parts

Purpose of refrigerant pipe insulation

During operation, temperature of gas pipe and liquid pipe shall be over- heating or over-cooling extremely. Therefore, it is necessary to carry out insulation; otherwise it shall debase the performance of unit and burn compressor.
Gas pipe temperature is very low during cooling. If insulation is not enough, it shall form dew and cause leakage.
Temperature of gas pipe is very high (generally 50-100) during heating. Insulation work must be carried out to prevent hurt by carelessness touching.

Insulation material selection for refrigerant pipe
The burning performance should over 120
According to the local law to choose insulation materials
The thickness of insulation layer shall be above 10mm. If in hot or wet environment place, the layer of insulation should be thicker accordingly.

Installation highlights of insulation construction

Gas pipe and liquid pipe shall be insulated separately, if the gas pipe and liquid pipe were insulated together; it will decrease the performance of air conditioner.

Installation

The insulation material at the joint pipe shall be 5~10cm longer than the gap of the insulation material.
The insulation material at the joint pipe shall be inserted into the gap of the insulation material.
The insulation material at the joint pipe shall be banded to the gap pipe and liquid pipe tightly.
The linking part should be use glue to paste together
Be sure not bind the insulation material over-tight, it may extrude out the air in the material to cause bad insulation and cause easy aging of the material.

Engineering of Electrical Wiring

Insulation of drainage pipe

Operational procedure of refrigerant pipe insulation

Select the suitable pipe insulation (except joint section) piping layout and connection drainage test insulate the joint parts

Purpose of drainage pipe insulation

The temperature of condensate drainage water is very low. If insulation is not enough, it shall form dew and cause leakage to damage the house decoration.

Insulation material selection for drainage pipe

The insulation material should be flame retardant material, the flame retardancy of the material should be selected according to the local law.
Thickness of insulation layer is usually above 10mm. · Use specific glue to paste the seam of insulation material, and then bind with adhesive tape. The width of tape shall not be less than 5cm. Make sure it is firm and avoid dew.

Installation and highlights of insulation construction

The single pipe should be insulated before connecting to another pipe, the joint part should be insulated after the drainage test.
There should be no insulation gap between the insulation material.

Highlights of electrical wiring installation

All field wiring construction should be finished by qualified electrician.
Air conditioning equipment should be grounded according to the local electrical regulations.
Current leakage protection switch should be installed.
Do not connect the power wire to the terminal of signal wire.
When power wire is parallel with signal wire, put wires to their own wire tube and remain at least 300mm gap.
According to table in indoor part named “the specification of the power” to choose the wiring, make sure the selected wiring not small than the date showing in the table.
Select different colors for different wire according to relevant regulations.
Do not use metal wire tube at the place with acid or alkali corrosion, adopt plastic wire tube to replace it.
There must be not wire connect joint in the wire tube If joint is a must, set a connection box at the place.
The wiring with different voltage should not be in one wire tube.
Ensure that the color of the wires of outdoor and the terminal No. are same as those of indoor unit respectively.
You must first choose the right cable size before preparing it for connection. Be sure to use H07RN-F cables.

Table: Minimum Cross-Sectional Area able of Power and Signal Cables

Rated Current of Appliance (A) 6 6 – 10 10 – 16 16 – 25 25 – 32 32 – 45

Nominal Cross-Sectional Area(mm2) 0.75 1 1.5 2.5 4 6

Test Operation

The test operation must be carried out after the entire installation has been completed.
Please confirm the following points before the test operation.
The indoor unit and outdoor unit are installed properly.
Tubing and wiring are correctly completed.
The refrigerant pipe system is leakage-checked.
The drainage is unimpeded.
The ground wiring is connected correctly.
The length of the tubing and the added stow capacity of the refrigerant have been recorded.
The power voltage fits the rated voltage of the air conditioner.
There is no obstacle at the outlet and inlet of the outdoor and indoor units.
The gas-side and liquid-side stop values are both opened.
The air conditioner is pre-heated by turning on the power.

Drainage Test

Ensure the drainpipe flows smoothly. New buildings should perform this test before finishing the ceiling.
Remove the test cover. Add 2000ml of water to the tank through the attached tube.
Turn on the main power switch and run the air conditioner in COOL mode.
Listen to the sound of the drain pump to see if it makes any unusual noises.
Check to see that the water is discharged. It may take up to one minute before the unit begins to drain depending on the drainpipe.
Make sure that there are no leaks in any of the piping.
Stop the air conditioner. Turn off the main power switch and reinstall the test cover.

Test operation

Open both the liquid and gas stop valves.
Turn on the main power switch and allow the unit to warm up.
Set the air conditioner to COOL mode, and check the following points.

Indoor unit

Whether the switch on the remote controller works well.
Whether the buttons on the remote controller works well.
Whether the air flow louver moves normally.
Whether the room temperature is adjusted well.
Whether the indicator lights normally.
Whether the temporary buttons works well.
Whether the drainage is normal.
Whether there is vibration or abnormal noise during operation.

Outdoor unit

Whether there is vibration or abnormal noise during operation.
Whether the generated wind, noise, or condensed of by the air conditioner have influenced your neighborhood.
Whether any of the refrigerant is leaked.

Introduction

Duct system losses are the irreversible transformation of mechanical energy into heat. The two types of losses are (1) friction losses and (2) dynamic losses. Friction losses are due to fluid viscosity and result from momentum exchange between molecules (in laminar flow) or between individual particles of adjacent fluid layers moving at different velocities (in turbulent flow). Friction losses occur along the entire duct length. Dynamic losses result from flow disturbances caused by duct mounted equipment and fittings (e.g., entries, exits, elbows, transitions, and junctions) that change the airflow path’s direction or area.

Charts For Friction Losses In Round Ducts

Fluid resistance caused by friction in round ducts can be determined by the friction chart. (based on galvanized sheet)
Static Pressure Design

Dynamic Losses

For dynamic losses, please refer to below image. Static Pressure Design

Corresponding Relation Between Rectangular Duct and Round Duct

Static Pressure Design

Method For Duct Calculation (equal friction method)

Draw schematic view of the duct system. 1)Make notes for air volume and mark clearly the elbow, the branch parts, the air discharge outlet. 1)Select one main ducting route (where the maximum static pressure loss occures). 1)Select the air velocity for the main duct in accordance with the desirable air velocity.

Main duct

Residence 3.5~6.0
Typical design velocity (m/s) Public building 5.0~8.0

Factory 6.0~11.0

Since the velocity and air volume are fixed for main duct, then use the Friction loss chart to find standard friction loss.
Use air volume and friction loss to find corresponding duct size and velocity for each part of main duct through Fricitions loss chart.
Find the dynamic loss of main ducting route according to the velocity. and type of special fittings (elbows, junctions, regulating flaps, etc.)
Obtain the duct size and velocity of each branch duct based on the air volume and the same standard friction loss as for the main duct.
Find the dynamic loss of branch duct.
Calculate the total pressure loss.

Unit Conversion

1 inch water=248.8 N/m2 (Pa)=0.0361 lb/in2 (psi)=25.4 kg/cm2=0.0739 in mercury · 1 ft3/min (cfm)=1.7 m3/h · 1 ft/min=5.08*10-3 m/s · 1 inch=2.54 cm=0.0254m=0.08333ft

Recommended Outlet Velocity For Different Occasion

The permissible sound level and correspondingly maximum air velocity, is determined by the occasion.

Noise / dB(A) 25 35 40 46 50 70

Occasion Studio, recording room Cinema, hospital, library
Office, school, hotel Bank, public hall Store, post office Factory

Maximum velocity / m/s 2 3 4 5 6 10

Static Pressure Design

WARNING: The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details.

AIRWELL RESIDENTIAL SAS 10,Rue du Fort de Saint Cyr, 78180 Montigny le Bretonneux – France www.airwell.com
21.AW.DFMD.100-160.R410A.TM.EN.11.19.Rev01

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