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Figure 18. VVCB Typical Wiring Diagram

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

XS1-6

XP1-6

T2B

XT1-2

ALARM

EEV

Indoor fan motor

Terminals

Electronic expansion valve

Room temperature sensor

Inlet of evaporator sensor
Outlet of evaporator sensor

Water level switch

Warning lamp

Pump motor

Connectors

Title

Code

Title

Code

T2A

PUMP

EEV

CN28

T2B

T2A

XS4

XP4

BLUE

WHITE

RED

Main Board

XS6

XP6

ON/OFF

SWITCH

ALARM

PUMP

CN50

HHE interface

CN51

FAN CTON HTON AUXH

( Current range: 0-1A)

( Voltage range: 0-24V AC/DC)

RED

BLACK

XS5

XP5

XT1

BLACK

RED

Y/G

CN27

CN3 CN18

CN31 CN54

CN4

CN15

CN19

CN8

CN12

CN26

CN25

CN21

CN14

CN52

CN9

L1 L2

POWER IN

Heat

“ +5V GND +12V ”

ONLY USED

FOR TESTING

BLACK

XP1

XP2

XP3

Middle of evaporator Sensor

YELLOW

GRAY

WHITE

BLUE

RED
BLACK

CN17

CN30

To wired

controller

comm. bus

To outdoor/

indoor/MS

units

comm

bus

XT2

HA
HB
12V

COM

To wired

controller

power

EARTH

Display Board

CN5

Error code

Error Content

E0
E1
E2

E4
E5

Mode conflict

Communication error between indoor and main outdoor unit

T1(Room temperature sensor) malfunction

T2B (Outlet of evaporator sensor) malfunction
T2A (Inlet of evaporator sensor) malfunction

Error Content

Error code

Ed
EE

No address

EEV malfunction

MS self-inspection error

Outdoor unit fault
High water alarm

MS error

DC fan motor error

EEPROM failure

T2(Middle of evaporator sensor) malfunction

Remote off

Emergency stop

NOTE:

1. Refer to manual for communication

wiring

2. Please use the 2-conductor shielded

twisted cable for communication

NOTE:

Component in dash line is optional or

field wiring

Y/G

Occupancy

sensor

CN1

Содержание VVCB

Страница 1: ...h flanges for connecting the supply plenum VRF VRF SYSTEMS Air Handler 507895 02 01 2019 WARNING Improper installation adjustment alteration ser vice or maintenance can cause property damage personal...

Страница 2: ...voided Note Only Lennox VRF indoor units will work with Lennox VRF outdoor units and associated mechanical equipment Lennox Mini Split indoor units are similar in appearance but must not be connected...

Страница 3: ...8 549 10 1 4 260 SUPPLY AIR 17 7 8 454 SUPPLY AIR 1 1 4 32 SUCTION LINE LIQUID LINE RETURN AIR RETURN AIR RETURN AIR SUPPLY AIR 20 3 4 527 18 1 2 470 19 3 4 502 45 3 4 1162 3 4 19 3 76 13 3 4 349 1 5...

Страница 4: ...365 B 22 560 C 19 1 2 495 D 24 610 E 19 1 2 495 F 20 3 8 518 G 22 3 4 578 F A G E LINE VOLTAGE INLETS Top and Either Side LOW VOLTAGE INLETS Top and Either Side 10 1 4 260 SUPPLY AIR 1 1 4 32 SUCTION...

Страница 5: ...RTICAL INSTALLATION 39 3 8 39 3 8 39 3 8 7 7 8 7 7 8 7 7 8 NOTE All dimensions shown in inches 1000 mm 1000 mm 200 mm 200 mm 1000 mm 200 mm Model No 012 030 036 060 Cabinet 0 inch 0 mm 0 inch 0 mm To...

Страница 6: ...ine Connection Liquid Line Connection Electronic Expansion Valve EEV Strainer Primary Drain Connection Vertical Drain Pan Auxiliary Horizontal Auxiliary Upflow Straps Drip Shield Baffle Drain Connecti...

Страница 7: ...blower motor support is tight 3 motor mount bolts then check to see if wheel is secured to motor shaft before operating unit Motor mounting bolt IMPORTANT This unit is approved for installation cleara...

Страница 8: ...rty damage injury or death Install the unit in a location that meets the following requirements Allow adequate space for installation service clearance piping and electrical connections and necessary...

Страница 9: ...is shown in Figure 5 5 If the unit is suspended the entire length of the cabinet must be supported If you use threaded rod use a piece of angle iron or Unistrut channel attached to the unit either abo...

Страница 10: ...rtical Upflow and Horizontal Right Configuration Shown T 1 T 2B T 2 Sensor Description T1 Return Air room Sensor T2 Middle of Coil Sensor T2A Entering Coil inlet Sensor T2B Leaving Coil outlet Sensor...

Страница 11: ...r temperature 16 Secure T 1 sensor to top of coil See Figure 10 17 Re secure the wiring harness using clips and wire ties Do not pinch or bind wires 18 Reconnect the T2 and T2B sensors 19 Reconnect th...

Страница 12: ...l with any other type of refrigerant oil Refrigerant leaks are unlikely however if a refrigerant leak occurs open a door or windows to dilute the refrigerant in the room Turn off the unit and all othe...

Страница 13: ...n pressurization of the low side shell and suction tubing Application of a brazing torch to a pressurized system may result in ignition of the refrigerant and oil mixture Check the high and low pressu...

Страница 14: ...ry drain The condensate drain is on the negative pressure side of the blower therefore air being pulled through the condensate line will not allow positive drainage without a proper trap 6 Route the d...

Страница 15: ...ect supply air duct to the flange on top of the air handler If an isolation connector is used it must be nonflammable When sizing the return air filter grille a minimum surface area of 200 sq in per t...

Страница 16: ...R84 IMPORTANT DO NOT adjust DIP switch settings Settings may only be adjusted by a trained technician as part of the com missioning procedures CAUTION This unit must be properly grounded and protected...

Страница 17: ...from the outdoor unit Always follow NEC CEC and Local Codes Outdoor unit main unit L1 L2 L3 Outdoor unit sub1 unit L1 L2 L3 Outdoor unit sub2 unit L1 L2 L3 L2 L3 L1 L2 L1 208 230V 3Ph 60Hz or 460V 3Ph...

Страница 18: ...wire polarity sensitive Typical Wiring Diagram NEC CEC and Local Codes apply Outdoor unit Outdoor unit sub1 unit Outdoor unit sub2 unit PQ main unit PQ MS Box PQ PQ MS Box PQ PQ H1 H2 H1 H2 H1 H2 Out...

Страница 19: ...eat Pump System Tightening torque for the terminal screws Use the correct screwdriver for fighting the terminal screws If the screwdriver blade is too small the head of the screw might be damaged and...

Страница 20: ...XP2 XP3 1 S X 2 S X 3 S X T2 Middle of evaporator Sensor YELLOW GRAY WHITE BLUE RED BLACK CN17 CN30 To wired controller comm bus To outdoor indoor MS units comm bus XT2 HA HB 12V COM Q P To wired cont...

Страница 21: ...0 28 8 30 240 5 0 17 100 3 0 29 8 30 7 5 kW V8EH0080P 1P 13P63 208 5 6 19 200 3 0 37 8 4 40 5 220 6 3 21 500 3 0 39 8 4 40 5 230 6 9 23 500 3 0 41 8 45 5 240 7 5 25 600 3 0 42 8 45 5 VVCB024H4 Descri...

Страница 22: ...50 3 60 6 220 8 4 28 700 4 2 53 3 60 6 230 9 2 31 400 4 2 55 3 60 6 240 10 0 34 100 4 2 57 3 60 6 VVCB030H4 Description Input Blower Motor Full Load Amps 2 Minimum Circuit Ampacity 3 Maximum Overcurr...

Страница 23: ...3 4 40 220 6 3 21 500 4 2 41 3 45 230 6 9 23 500 4 2 42 3 45 240 7 5 25 600 4 2 44 3 45 10 kW V8EH0100P 1P 13P64 208 7 5 25 600 4 2 50 3 60 220 8 4 28 700 4 2 53 3 60 230 9 2 31 400 4 2 55 3 60 240 10...

Страница 24: ...2 4 45 220 6 3 21 500 5 7 43 2 45 230 6 9 23 500 5 7 44 2 45 240 7 5 25 600 5 7 46 2 50 10 kW V8EH0100P 1P 13P64 208 7 5 25 600 5 7 52 3 60 220 8 4 28 700 5 7 55 3 60 230 9 2 31 400 5 7 57 3 60 240 10...

Страница 25: ...000 6 0 55 6 24 1 60 4 30 79 7 80 6 230 13 8 47 000 6 0 57 6 25 1 60 4 30 82 7 90 6 240 15 0 51 000 6 0 59 6 26 1 60 30 85 7 90 6 20 kW V8EH0200P 1P 13P76 208 15 0 51 200 6 0 52 6 45 1 60 4 50 97 7 10...

Страница 26: ...4 112 130 149 169 192 214 235 30 2 5 Ton L 750 54 70 87 103 118 136 157 171 191 M 870 83 103 121 142 159 182 195 217 239 H 1000 119 142 164 185 212 233 257 286 304 36 3 Ton L 900 52 73 92 119 157 184...

Страница 27: ...screws remove filter cabinet cover See Figure 19 2 Remove air filter 3 Clean the air filter using vacuum or water For heavy accumulations use soft brush and mild detergent See Figure 20 4 Dry filter c...

Страница 28: ...lectrical control box 1 Remove receiver from accessories package 2 Insert the two fixed plastic mounting brackets on the back of the receiver into the two slots inside of the electrical control box an...

Страница 29: ...r temperature T1 6 The middle coil temperature T2 7 The coil inlet temperature T2A 8 The coil outlet temperature T2B 9 The actual superheat temperature 10 The actual subcool temperature 11 Error Code...

Страница 30: ...er power has been broken and restored at the disconnect switch or circuit breaker call VRF Technical Support 1 844 438 8731 Figure 23 Receiver Display Error Code Description FE No address E0 Mode conf...

Страница 31: ...31 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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