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Figure 24. Typical Unit Wiring Diagram

CT1

CN4

CN3

RES

CN1

CN2

CN20

POWER SUPPLY

CH1

BLUE

CN26

CN6

CN5

P_1

L_1

L_2

N_1

VIN_N

BLACK

CN6

CN18

BLUE

BROWN

BLUE

CAP1

CAP2

CN24

XT2

BLUE

BLUE

RED

REC

L_OUT

N_OUT

L_IN

N_IN

CN11

Y/G

CN1

BOTTOM-FAN

TOP-FAN

CN3

RED

BLACK

RED

BLACK

CH9

CN17

CN19

BROWN

CH2

RED

BLACK

Forfactory use only

YELLOW

RED

208/230V 60Hz 1Ph 

WHITE

Compressor

CT1

COMP

CAP1

CAP2

L_1

HEAT1

EEV

TOP-FAN

H-PR

L-PR

REC

Outdoor fan motor(DC)

Electronic expansion

 Valve

RES

STF1

SV4-SV6

Resistor

XT1

XT2 Block terminal

Comp. Discharge 

Temperature sensor

Code

Part Name

Magnetic ring

BOTTOM-FAN

H-YL

High pressure sensor

L_2

L0

L1

L2

L5

L9

L8

L4

L7

Low compressor speed

Compressor MCE error

E2

E4

E5

E6

EA

P2

P8

Fan output and feedback speed mismatch

P1

P3

P4

P5

Low-pressure switch trip

Hi-pressure switch trip

High compressor discharge temperature

2 times of E6  in 10 minutes

High condenser temperature

DC Fan error

E9

Eb

H0

PE

High indoor coil temperature

E7

E.9.

Communication error between compressor module 

and main board

Communication error between indoor unit and 

outdoor unit

F1

H4

3 times of L0 or L1 in 60 minutes

Compressor speed difference >15Hz between adjacent

  2 second

mode(T3>75°F)

Compressor module error

Compressor power out of phase 

Error Code For Outdoor Unit

SW3 Function Definition:

SW4 Function Definition:

(Factory use only)

ENC1 function definition:

ENC1

ENC2 function definition

ENC2

Outdoor unit network

address dial-up

Only 0-7 used

123

SW3

ON

Outdoor Ambient

Cooling Priority

Master Indoor Unit

Heating Only

Cooling Only

SW4-1

OFF-Manually addressing 

SW4-2

 

ON-Clear indoor units 

addresses

SW4-1

ON-Automatically addressing

PP

Compressor discharge temperature over-low protection

A0

Emergency Stop

SW4-3

OFF-Reserved 

(Factory default)

TRANS

THANS OUT

TRANS IN

CN51

TR

TR

H-PR

L-PR

CN12

CN14

H-YL

CN8

T5

T3

T4

CN9

XS7  XP7    

XS5  XP5    

XS6  XP6    

XS8  XP8    

EEV.

CN22

Y/G

L1

L2

XT1

SV5

CN31

BLACK

SV4

CN21

BLACK

HEAT1

CN15

GRAY

STF1

CN13

BLUE

SV6

CN7

BLACK

HEAT3

CN10

RED

BLACK

BLUE

RED

COMP

Y/G

U

V

W

U  V  W

RED

BLACK

CH3

CH4

CH5

CH6

A1

A2

A3

Z

Z

1
2
3

4

5

T3 or T4 temperature sensor error

Compressor discharge temperature sensor error

EEPROM error

EEPROM not match main chip

Power voltage out of range

DC fan error more than 5 minutes in heating

Input current overload

YELLOW

Rectifier

Pfc inductor

Outdoor ambient 

Temperature sensor

High pressure switch

Low  pressure switch
Transformer

Condenser temperature 

Sensor

Voltage dependent resistor

T5

T4

T3

123

SW4

ON

123

SW3

ON

123

SW4

ON

123

SW3

ON

123

SW4

ON

123

SW3

ON

123

SW4

ON

123

SW3

ON

123

SW3

ON

123

SW4

ON

123

SW3

ON

ON

3

2

1

ON

3

2

1

   FORCE_COOL

CHECK

SW1

SW2

ENC1

ENC2

DIS1

SW4

SW3

4-way valve

Solenoid valve

Capacitor

SW4-2

OFF-Cannot clear indoor 

units addresses 

(Factory default)

(Factory default)

(Factory default)

Heating Priority

System Demand 

Crankcase heater

MAIN BOARD

WIRING DIAGRAM(OUTDOOR UNIT)

COMPRESSOR MODULE

Ac curren sensor

CH1-CH9

HEAT3

The wiring diagram shown is for reference only,

actual product may vary.

CH8

CH7

YELLOW

YELLOW

YELLOW

H8

High pressure sensor error

DC bus voltage less than 200V for 5S

DC bus low voltage

DC bus high voltage

Compressor speed difference >15Hz between the

 actual and the setting speed

P
N

CN10

CN8

CN9

K1 K2

O A

X Y

P Q

H1 H2

Signal wire terminal block

CN11

COMM. board

CN6

CN7

Reserved

To Pulse 
Meter

Indoor Unit
Information
Circuit To 
LVM, BAC-
net,or LON 
system

System Commu-
nication Circuit
 To Indoor Units

Reserved

L_1

L_2

N=1

N=1

N=1

Code

Part Name

BROWN

BLUE

Typical wiring diagram. Refer to wiring diagram on the unit for actual wiring.

Содержание VPB H4-3P Series

Страница 1: ...he gas supplier Failure to follow safety warnings and these instruc tions exactly could result in property damage dan gerous operation serious injury or death Any additions changes or conversions requ...

Страница 2: ...VSS piping report is an engineered design that must be followed The piping diagram or diagrams included within the LVSS report have been prepared based on the information provided to the Lennox VRF ap...

Страница 3: ...400 13 3 4 349 12 5 8 321 3 4 19 23 5 8 600 6 152 CC CENTER OF GRAVITY DD BB AA EE FF Dimensions Inches mm CORNER WEIGHTS CENTER OF GRAVITY Model No AA BB CC DD EE FF lbs kg lbs kg lbs kg lbs kg in mm...

Страница 4: ...0 Minimum Service Clearance 12 305 Minimum 79 2007 Minimum 24 610 Minimum Service Clearance 12 305 Min 118 2997 Min 118 2997 Min 20 508 Min 79 2007 Min Back to Back Facing Units Front to Back Wall or...

Страница 5: ...hes 102 mm above the roof or ground surface to avoid ice build up around the unit Locate the unit above a load bearing wall or area of the roof that can adequately support the unit Consult local codes...

Страница 6: ...ab or Frame Brackets are provided at the base of the outdoor unit so that it can be secured to a field provided slab or frame Use lag bolts or equivalent to secure the outdoor unit to the slab or fram...

Страница 7: ...round the air inlet and the air outlet The unit must not be installed in areas where a flammable gas leak may occur Figure 4 Unit on Pedestal Stand Above Snow Line Protective canopy Front View Side Vi...

Страница 8: ...ion examples are Construct a wind barrier Size barrier at least the same height and width as outdoor unit Install a barrier 12 inches 305 mm minimum from the sides of the unit in the direction of prev...

Страница 9: ...In addition to insulating each line of piping buried lines must rest inside a sealed watertight conduit The conduit must be designed so it cannot collect and retain water NOTE Minimum clearances appl...

Страница 10: ...r the unit NOTES Louver angle should not exceed 15 Installing the Unit Inside of Building Mini VRF outdoor units may be installed indoors if the following guidelines are followed Refer to Figure 12 fo...

Страница 11: ...it Makeup air requirements are equal to or greater than discharge air volume Size makeup air openings appropriately to supply adequate air for the outdoor unit Unit clearances apply Check fan load amp...

Страница 12: ...eup air requirements are equal to or greater than discharge air volume Size makeup air openings appropriately to supply adequate air for the outdoor unit Unit clearances apply Check fan load amps FLA...

Страница 13: ...ing connections Both liquid and gas vapor lines must be individually insulated Model Liquid Line Gas Vapor Line VPB036H4 VPB048H4 VPB060H4 3 8 in 3 4 in Table 1 Refrigerant Piping Connections WARNING...

Страница 14: ...outdoor unit each indoor unit re quires a separate branch pipe to connect both the liquid and gas vapor line to the system Install these optional devices per the installation instructions pro vided wi...

Страница 15: ...ver tighten a flared joint Flared connections should always be accessible and must be insulated to prevent condensation IMPORTANT The compressor in this unit contains PVE oil Polyvinylether PVE oil is...

Страница 16: ...Length Actual 492 ft 150 m L1 L2 L3 L4 L5 L6 A B C D E Maximum Piping Length Actual Length 296 ft 90 m L1 L3 L4 L5 L6 E Equivalent Length 328 ft 100 m Pipe length from the first line branch pipe to fa...

Страница 17: ...ption Designation Main Outdoor Pipe from outdoor unit to header pipe kit L1 Indoor Unit Pipe from header pipe kit s to indoor units A B C D A B C Indoor unit 20m L1 8m Maximum Permitted Refrigerant Pi...

Страница 18: ...ght Difference Maximum Permitted Length Piping Pipe Length Total Piping Length Actual 492 ft 150 m L1 A B C D E F L3 L4 Maximum Piping Length Actual Length 296 ft 90 m L1 L4 A L1 L4 B L1 L4 C L1 L4 D...

Страница 19: ...Length Piping Pipe Length Total Piping Length Actual 492 ft 150 m L1 A B C D E F G H L3 L4 L5 L6 Maximum Piping Length Actual Length 296 ft 90 m L1 L4 L6 A L1 L4 L6 B L1 L4 L6 C L1 L4 L6 D L1 L4 L5 E...

Страница 20: ...More than 148 ft 45 m 3 4 in VPB048H4 4 Ton Less than 148 ft 45 m 5 8 in 3 8 in 7 More than 148 ft 45 m 3 4 in VPB060H4 5 Ton Less than 148 ft 45 m 3 4 in 3 8 in 9 V8IDBP01 More than 148 ft 45 m 7 8 i...

Страница 21: ...in 3 8 in VHIB Concealed High Static Ducted 012 015 1 2 1 4 024 030 036 048 054 5 8 in 3 8 in 072 7 8 in 3 8 in VOSB Outside Air Unit 036 048 054 072 5 8 in 3 8 in 072 7 8 in 3 8 in VMDB Concealed Me...

Страница 22: ...essure test specifications in table 1 and the triple evacuation process de scribed on this page to pressure test and evacu ate the system Use a vacuum pump capable of evacuating to lower than 500 Micr...

Страница 23: ...Calculate the additional refrigerant charge using the diameter and length of the liquid pipe only using Table 4 below 2 Calculate the additional refrigerant charge for each liquid line branch pipe ki...

Страница 24: ...a damaged power cord Do not modify the power cord in any way Do not attempt to extend the length of the power cord or use an extension cord with this appliance Do not share the single power outlet wi...

Страница 25: ...perature over low protection A0 Emergency Stop SW4 3 OFF Reserved Factory default TRANS THANS OUT TRANS IN CN51 TR TR H PR L PR CN12 CN14 H YL CN8 T5 T3 T4 CN9 XS7 XP7 XS5 XP5 XS6 XP6 XS8 XP8 EEV CN22...

Страница 26: ...nit J Box L2 L1 Indoor Unit J Box L2 L1 Indoor Unit J Box L2 L1 Indoor Unit J Box Figure 26 Typical Low Voltage Field Wiring Outdoor Unit 18 GA 2 conductor stranded shielded control wire polarity sens...

Страница 27: ...the indoor unit which is furthest from the outdoor unit Indoor Unit Indoor Unit Indoor Unit Outdoor Unit Refrigerant Piping PQ Coil AHU Control Kit Indoor Unit Indoor Unit Indoor Unit P Q All Drain W...

Страница 28: ...it Indoor Unit Indoor Unit Indoor Unit Indoor Unit Header Pipe Kit V8HDRK04 Header Pipe Kit V8HDRK04 Header Pipe Kit V8HDRK04 Refrigerant Piping PQ Outdoor Unit Refrigerant Piping Coil AHU Control Kit...

Страница 29: ...29 Outdoor Unit Main Control Board SW4 SW3 ENC2 Display SW2 SW1 Figure 31 Typical Outdoor Unit Main Board...

Страница 30: ...ty Mode Rules in favor of quantity of indoor units Cooling Only ON 1 2 3 System Demand Majority Mode Rules per capacity Default factory setting ON 1 2 3 Heating Priority ON 1 2 3 Reserved ON 1 2 3 ENC...

Страница 31: ...bient temperature Actual value in C 7 T5 Compressor discharge temperature If T5 99 it will only show the front two digits of the actual temperature For example it will show 10 when T5 is 105 8 Reserve...

Страница 32: ...ed and will operate semi indepen dently from refrigerant pressures and temperatures Cooling and heating capacity demands will not be observed during this period Indoor units are in the cooling mode an...

Страница 33: ...if no alternate heat is used 2 7F 3 10F 4 15F 5 20F 6 30F 7 40F 8 35F 9 40F 10 45F 11 50F 12 55F 13 60F 14 65F 15 70F 16 75F 17 80F 5 Indoor Unit Temperature Unit 0 F 1 C Access Service Menu Press SW...

Страница 34: ...all controllers restricting end user s operation this is to include centralized controllers as well Compressor frequency fan speeds and EXV positions will be elevated and will operate semi indepen de...

Страница 35: ...35...

Страница 36: ...36 Technical Support 1 844 GET VRF1 1 844 438 8731 vrftechsupport lennoxind com www LennoxVRF com Download the app from the Apple App Store or the Google Play store...

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