Lennox VERDB01C432P Installation Manual

Vrf heat recovery distribution boxes

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Thank you for selecting LENNOX air conditioners. Please read this manual carefully before operation
and keep it for further reference.
VRF Heat Recovery
Installation Manual
Distribution Boxes
VERDB01C432P
VERDB02C432P
VERDB04C432P
VERDB08C432P

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Summary of Contents for Lennox VERDB01C432P

  • Page 1 VRF Heat Recovery Installation Manual Distribution Boxes VERDB01C432P VERDB02C432P VERDB04C432P VERDB08C432P Thank you for selecting LENNOX air conditioners. Please read this manual carefully before operation and keep it for further reference.
  • Page 2 Preface For correct installation and operation, please read this manual carefully. Before reading the manual, please note that: This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
  • Page 3: Table Of Contents

    Contents 1 Safety Precautions ......................1 2 Product Introduction ......................2 2.1 Names of Main Parts ......................2 2.2 Parameter table ........................3 3 Preparation before installation ..................3 3.1 Standard Accessory ....................... 3 3.2 Installation Site ........................4 3.3 Selection Requirement for Communication Wire ..............5 3.4 Wiring Requirment .........................
  • Page 4: Safety Precautions

    (19) User is not allowed to repair the unit. Fault service may cause electric shock or fire accident s. Please contact LENNOX appointed service center for help. (20) Before installation, please check if the power supply is in accordance with the requirements specified on the nameplate.
  • Page 5: Product Introduction

    LENNOX will not assume responsibility for any personal injury or property loss caused by improper installation, improper test running, and unnecessary repair or not following the instructions of this manual.
  • Page 6: Parameter Table

    ③ Connection pipe of Connection pipe of Name Drainage pipe outdoor unit indoor unit 2.2 Parameter table Model Unit VERDB01C432P VERDB02C432P VERDB04C432P VERDB08C432P Rated voltage 208/230V 208/230V 208/230V 208/230V Max. quantity of connecting indoor unit Max. branch quantity of connecting indoor unit Max.
  • Page 7: Installation Site

    Cooling and Heating Recovery Mode Exchanger The sizes of both nozzles are IDΦ19.3 (3/4)and ODΦ19(3/4),nozzle silencer 1 ODΦ19(3/4) is used for connecting the high pressure gas pipe of VERDB02C432P. The sizes of both nozzles are IDΦ22.3(7/8) and ODΦ28(1-1/8),nozzle silencer 2 OdΦ28(1-1/8) is used for connecting the high pressure gas pipe of...
  • Page 8: Selection Requirement For Communication Wire

    Cooling and Heating Recovery Mode Exchanger Unit:mm(in.) Fig. 3.1 ① The installation of the unit must comply with national and local safety regulations. ② Users can’t install the unit by theirselves, because the intallation quality will affect the operation directionly. After purchasing the unit, please contact with dealer.
  • Page 9 Cooling and Heating Recovery Mode Exchanger Fig.3.2 Total length of communication wire between mode exchanger Type of wire Wire size Remarks another indoor/outdoor unit: L/m(in.) ① If the wire diameter is enlarged to 2 ×AWG16, the total communication length can reach 1500m (4921-1/4ft.).
  • Page 10: Wiring Requirment

    3.4 Wiring Requirment Maximum Minimum Circuit Model Power Fuse Capacity(A) Overcurrent Ampacity(A) Protection(A) VERDB01C432P 208/230V 1Ph 60Hz VERDB02C432P 208/230V 1Ph 60Hz 208/230V 1Ph 60Hz VERDB04C432P VERDB08C432P 208/230V 1Ph 60Hz ① Above circuit breaker and power cord specition are selected according to the max power (max currrect).
  • Page 11 Cooling and Heating Recovery Mode Exchanger Fig. 4.1 Fig. 4.2 Fig. 4.3...
  • Page 12 Cooling and Heating Recovery Mode Exchanger Due to the structure of installation space, the mode exchanger needs a maintenance port. Please reserve another maintenance port for mode exchanger. Fig. 4.4 VERDB01C432P outline and installation dimension Unit:mm (in.) Fig. 4.5...
  • Page 13 Cooling and Heating Recovery Mode Exchanger VERDB02C432P outline and installation dimension Unit:mm (in.) Fig. 4.6 VERDB04C432P outline and installation dimension Unit:mm (in.) Fig. 4.7...
  • Page 14: Suspend The Mode Exchanger

    Cooling and Heating Recovery Mode Exchanger VERDB08C432P outline and installation dimension Unit:mm (in.) Fig. 4.8 4.1.2 Suspend the mode exchanger (1)Drill bolt holes and install bolts 1)Stick the installation template at the installation position flatly, drill 4 holes at the installation postion basing on the installation template.
  • Page 15 Cooling and Heating Recovery Mode Exchanger Fig. 4.11 (2)Install the mode exchanger temporarily Assemble suspension bolt on the expansion bolt, attach the hanger bracket to the suspension bolt. Be sure to fix it securely by using a nut and washer from upper and lower sides of the hanger bracket. The washer fixing plate will prevent the washer from falling.
  • Page 16: Pipe Connection

    Cooling and Heating Recovery Mode Exchanger Fig. 4.13 Cautions for Installation (1) The mode exchanger must be installed by using hanger rod. During installation, the components must be kept vertically upright according to the indicated direction; (2) During installation, enough space shall be considered for removal of the components. The pipe shall not be jammed between the components.
  • Page 17 Cooling and Heating Recovery Mode Exchanger Fig. 4.15 2) Take out the two silencers, insert nozzle ODΦ19(3/4) in silencer 1 to the high pressure gas pipe on the right side of converter, then insert nozzle ODΦ28(1-1/8) in silencer 2 to the low pressure gas pipe on the right side of converter, conduct welding;...
  • Page 18: Notices For Welding

    Cooling and Heating Recovery Mode Exchanger Fig. 4.17 2) Take out the two silencers, insert nozzle ODΦ19(3/4) in silencer 1 to the high pressure gas pipe on the left side of converter, then insert nozzle ODΦ28(1-1/8) in silencer 2 to the low pressure gas pipe on the left side of converter, conduct welding;...
  • Page 19: Precautions For The Installation Of Connection Pipe

    Cooling and Heating Recovery Mode Exchanger please adjust the flow speed of nitrogen by control valve according to the diameter of copper pipe. (4) For the unused branch pipelines, they should be sealed with copper tube to avoid leakage of refrigerant in the system.
  • Page 20: Selection Of Y-Type Branch

    Cooling and Heating Recovery Mode Exchanger 4.2.4 Selection of Y-type branch If connect outdoor unit to multiple mode exchanger, the Y-type branch should be adopted. (1) Y-type branch Fig. 4.22 (2) Y-type branch has several pipe sections with different size, which facilitates to match with various copper pipes.
  • Page 21 Cooling and Heating Recovery Mode Exchanger Fig.4.24 (3) There must be three fixing point for both horizontal and vertical installation of the Y-type manifold. See Fig.4.25. Fixing point 1: 100mm(4in.) on the main inlet manifold from the welding point Fixing point 2: 200mm(7-7/8in.) on the main branched pipe from the welding point Fixing point 3: 250mm(9-13/16in.) on the branched pipe from the welding point Unit: mm(in.) Fig.4.25...
  • Page 22: Support And Protection Of Pipeline

    Cooling and Heating Recovery Mode Exchanger Fig. 4.26 Fig. 4.27 Fig. 4.28 4) Thermal insulating material of branches should be the same as that of the pipeline. The attached foam of branches cannot be taken as insulating material. 5) When wrapping the tape, the later circle should cover half of the former one. Don’t wrap the tape too tight, otherwise the insulation effect will be weakened.
  • Page 23 Cooling and Heating Recovery Mode Exchanger Fig. 4.29...
  • Page 24: Size Requirement For Branch Pipe And Piping

    Cooling and Heating Recovery Mode Exchanger 4.2.7 Size requirement for branch pipe and piping Take the connection sketch map of single-module system for example. Fig. 4.30 4.2.7.1 Branch selection of mode exchanger (“A1, A2”) Select branch of mode exchanger as per total capacity of downstream indoor unit(s). Please refer to the following table.
  • Page 25 Cooling and Heating Recovery Mode Exchanger Piping size between mode exchanger and downstream indoor unit (“ b、c、d、g”) Piping size between mode exchanger and downstream indoor unit Total rated capacity of downsteam indoor units: X (Btu/h) Gas pipe /mm(in.) Liquid pipe/mm(in.) X≤9500 Φ9.52(3/8) Φ6.35(1/4)
  • Page 26: Installation And Test For Drainage Hose

    Cooling and Heating Recovery Mode Exchanger Connecting method is as shown in the picture: Fig. 4.32 4.2.7.4 Branch selection of indoor unit of mode exchanger (“C1”) capacity of downsteam indoor R410A refrigerant system Model units: X /Btu/h 48500<X≤96000 Y-type branch VEBC01B 4.2.7.5 Piping size between mode exchanger and downstream indoor unit (“m”) Size of connection pipe between indoor branch and indoor unit should be consistent with the...
  • Page 27: Installation Of Drainage Hose

    Cooling and Heating Recovery Mode Exchanger Fig. 4.33 Fig. 4.34 4.3.2 Installation of Drainage Hose (1) Insert the drainage hose into drain outlet and then bundle it with adhesive tape. (2) Tighten the pipe clamp to make the distance between screw cap and hose less than 4mm (3/16in.).
  • Page 28: Cable Connection

    Cooling and Heating Recovery Mode Exchanger Fig. 4.37 (8) Horizontal pipe can’t be connected to the vertical pipe at the same horizontal height. Please see below fig for the connection method: NO1: Three-way connection of drainage hose joint as shown in fig. 4.38; NO2: Downelbow connection as shown in fig.
  • Page 29: Connection Of Cable And Terminal Of Wiring Board

    Cooling and Heating Recovery Mode Exchanger ⑤ Perform wirng according to standard to ensure normal operation of air conditioner. ⑥ According to related regulation and electric appliances standard, install special branch circuit breaker. ⑦ All wiring must use pressure terminal or single wire. If connect the stranded wire to the wiring board directly, it may cause fire.
  • Page 30: Connect Power Cord

    Cooling and Heating Recovery Mode Exchanger 5.2 Connect Power Cord NOTICE ! The mode exchanger in the same system must be supplied power uniformly. Fig. 5.3 Remark: The maximum quantity “n” of indoor unit is decided by the capacity of indoor unit, please refer to capacity of unit.
  • Page 31 Cooling and Heating Recovery Mode Exchanger Fig. 5.4 4) Fix the power cord with wire-fixing clamp. 5) Take off the cable cross loop that is attached to the mode exchanger, as shown in Fig.5.5~5.8. Replace with a local cable cross bushing. One-to-one Cooling and Heating Mode Exchanger Fig.5.5 One-to-two Cooling and Heating Mode Exchanger...
  • Page 32: Conenct Communication Wire Of Indoor Unit And Outdoor Unit

    Cooling and Heating Recovery Mode Exchanger One-to-eight Cooling and Heating Mode Exchanger Fig.5.8 5.3 Conenct Communication Wire of Indoor Unit and Outdoor Unit (1) Open electric box cover of indoor unit. (2) Pass the communication wire through rubber ring. (3) Connect communication wire to wiring board OD(D1,D2) of outdoor unit of mode exchanger. (4) Connect communication wire lead from D1and D2 terminal of 4-bit wiring board of indoor unit to wiring board ID1(1D1,...
  • Page 33: Routine Maintenance

    Cooling and Heating Recovery Mode Exchanger Fig. 5.11 6 Routine Maintenance ① Only clean the air conditioner after turning off the unit and cutting off the power. Otherwise, it may cause electric shock or injury. ② When cleaning the air conditioner, please stand on the solid platfor m. ③...
  • Page 34: Maintenance After Seasonal Use

    Cooling and Heating Recovery Mode Exchanger 6.2 Maintenance after Seasonal Use (1) Run the air conditioenr at fan mode for half day at sunny day to dry the internal parts of unit. (2) If you don’t use the air conditioner for a long time, please cut off the power to save energy; after cutting off the power, the characters on the screen of wire docntroller will disappear.
  • Page 36 Contact us at +1-305-718-2901 lennoxglobalhvac@lennoxintl.com 2018 Lennox Industries Inc. For a complete list of the registered and common law trademarks owned by Lennox Industries Inc., please visit www.lennox.com...

This manual is also suitable for:

Verdb02c432pVerdb04c432pVerdb08c432p

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