Lennox V36C S4-4P Series Installation Manual
Lennox V36C S4-4P Series Installation Manual

Lennox V36C S4-4P Series Installation Manual

Vrf (variable refrigerant flow)

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VRF (Variable Refrigerant Flow)
Installation manual
V36C***S4-4P
• Thank you for purchasing this Lennox Product.
• Before operating this unit, please read this manual carefully and retain it for future reference.
DB68-13133A-00_IM_VRF 360_AA_EN_.indd 1
DB68-13133A-00_IM_VRF 360_AA_EN_.indd 1
2024-08-06 오후 12:07:24
2024-08-06 오후 12:07:24

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Summary of Contents for Lennox V36C S4-4P Series

  • Page 1 VRF (Variable Refrigerant Flow) Installation manual V36C***S4-4P • Thank you for purchasing this Lennox Product. • Before operating this unit, please read this manual carefully and retain it for future reference. DB68-13133A-00_IM_VRF 360_AA_EN_.indd 1 DB68-13133A-00_IM_VRF 360_AA_EN_.indd 1 2024-08-06 오후 12:07:24...
  • Page 2 Contents Safety Information Installation Procedure Step 1 Checking and preparing accessories Step 2 Choosing the installation location Step 3 Optional: Insulating the body of the indoor unit Step 4 Installing the indoor unit Step 5 Purging inert gas from the indoor unit Step 6 Cutting and flaring the pipes Step 7 Connecting the assembly pipes to the refrigerant pipes Step 8 Performing the gas leak test...
  • Page 3: Safety Information

    This manual explains how to install an indoor unit with damaged during transport. If the product appears damaged, a split system with two Lennox units. The use of other DO NOT INSTALL it and immediately report the damage to the...
  • Page 4: Power Supply Line, Fuse Or Circuit Breaker

    Safety Information • Do not install the product in a place where thermohygrostat • Be sure not to perform power cable modification, is needed (such as server room, machinery room, computer extension wiring, and multiple wire connection. room, etc.) Those places do not provide guaranteed operation –...
  • Page 5: Installation Procedure

    Installation Procedure Step 1 Checking and preparing Step 2 Choosing the installation accessories location The following accessories are supplied with the indoor unit. The type and quantity may differ, depending on the Installation location requirements specifications. • There must be no obstacles near the air inlet and outlet.
  • Page 6: Indoor Unit Dimensions

    Installation Procedure Indoor unit dimensions Unit: inch (mm) Category Square panel Circular panel 39.40 (1000) 41.37 (1050) 14.11 (358) 34.79 (883) Front 4.57 Ceiling opening dimension (116) 37.80 (960) [37.40 (950) - 37.80 (960)] 15.17 15.92 (385) (404) 14.07 (357) Large 15.17 15.92...
  • Page 7: Spacing Requirements

    V36C009S4-4P V36C030S4-4P Model V36C012S4-4P V36C024S4-4P V36C036S4-4P V36C018S4-4P V36C048S4-4P Chassis Small Large Net dimension 37.28 x 37.27 x 11.06 37.28 x 37.27 x 11.06 37.28 x 37.27 x 14.37 in. (mm) (W × D × H) (947 x 947 x 281) (947 x 947 x 281) (947 x 947 x 365) Net weight...
  • Page 8: Step 3 Optional: Insulating The Body Of The Indoor Unit

    Installation Procedure Insulate the end of the pipe and some curved area by CAUTION using separate insulator. • The indoor unit must be installed according to the specified distances in order to permit accessibility NOTE from each side, to guarantee correct operation, •...
  • Page 9 2 Perform the following steps to install inspection holes 4 Install the suspension bolts, depending on the ceiling in accordance with the panel type. type. a For the recessed installation of the square panel. • Install an inspection hole to the direction of Ceiling support connection parts of the refrigerant pipe and the drain hose.
  • Page 10: Step 5 Purging Inert Gas From The Indoor Unit

    Installation Procedure 7 Adjust the unit to the appropriate position, taking into Step 6 Cutting and flaring the pipes account the installation area for the front panel. 1 Make sure that you have the required tools available: • Place the pattern sheet on the indoor unit. pipe cutter, reamer, flaring tool, and pipe holder.
  • Page 11: Step 7 Connecting The Assembly Pipes To The Refrigerant Pipes

    5 Check that the flaring is correct, referring to the Outer Diameter (D) Torque illustrations below for examples of incorrect flaring. N·m lbf·ft 6.35 14 to 18 10.3 to 13.3 9.52 34 to 42 25.1 to 31.0 12.7 49 to 61 36.1 to 45.0 15.88 68 to 82...
  • Page 12: Step 8 Performing The Gas Leak Test

    Installation Procedure Step 9 Insulating the refrigerant CAUTION pipes • Connect the indoor and outdoor units using pipes with flared connections (not supplied). For the lines, Once you have checked that there are no leaks in the use insulated, unwelded, degreased and deoxidized system, you can insulate the piping and hose.
  • Page 13 • Must fit tightly against body without any gap. CAUTION • All refrigerant connection must be accessible, in order • Install the insulation not to get wider and use the to permit either unit maintenance or removal. adhesives on the connection part of it to prevent 5 Select the insulation of the refrigerant pipe.
  • Page 14: Step 10 Installing The Drain Hose And Drain Pipe

    Installation Procedure • When installing insulation in the places and 5 Push the drain hose up to insulation when connecting conditions below, use the same insulation that is the drain hose to drain socket. used for high humidity conditions. Metal clamp <Geological condition>...
  • Page 15 • Do not give the hose an upward gradient beyond • Max. allowable bending angle. the connection port. This will cause water to flow backwards when the unit is stopped, resulting in water leaks. Under gradient Indoor unit Max. 30˚ Ceiling NOTE •...
  • Page 16: Step 11 Performing The Drainage Test

    Installation Procedure Step 11 Performing the drainage test CAUTION 1 Do a leak test at the connection part of the flexible • Only in the Cool mode, you can check the correct hose and the drain pipe: operation of the drain pump. a Connect a general hose to the connection part of When the electric cable connection has not been the flexible hose of the indoor unit, and pour in...
  • Page 17: Bushing Bracket Installation

    Bushing bracket installation IF the condult tube is used, bracket must be installed as shown in the picture to fix the conduit tube. Indoor unit Push < 1 conduit tube > < 2 conduit tube > NOTE • Please follow national and local electrical codes. Additional electrical connection components may be required. English DB68-13133A-00_IM_VRF 360_AA_EN_.indd 17 DB68-13133A-00_IM_VRF 360_AA_EN_.indd 17...
  • Page 18: Step 12 Connecting The Power And Communication Cables

    Installation Procedure Step 12 Connecting the power and Tightening torque (lbf.ft) communication cables M3.5 0.59 to 0.89 0.89 to 1.1 Power and communication cable connection • To protect the product from water and possible shock, you should keep the power and the communication cables of the indoor and outdoor units in the iron pipe.
  • Page 19 Selecting the crimping terminal lug 1 Select the crimping terminal lug based on the norminal dimension of the power cable. 2 Cover the connection part of the power cable and crimping terminal lug to insulate it. Silver solder Norminal dimensions for cable [Inch 0.002 (1.5) 0.003 (2.5) 0.006 (4)
  • Page 20 Installation Procedure Specifications of the terminal blocks Rated currents Unit: inch (mm) Model Rating current(A) Communication: M3.5 screw V36C009S4-4P 0.18 AC power: M4 screw 5/16 (7.5) 3/8 (9.0) 7/16 (11) V36C012S4-4P 0.18 V36C018S4-4P 0.18 V36C024S4-4P 0.28 1/2 (13) V36C030S4-4P 0.42 V36C036S4-4P 0.57 V36C048S4-4P...
  • Page 21: Example Of Installation

    Example of Installation Total power cable length L = 328 (ft) (100 m), Initial pull-in current = 10[A], Running current of each units = 1[A], Total 10 indoor units were installed 10 [A] 9 [A] 1 [A] MCCB+ELB ELCB Indoor unit 1 Indoor unit 2 Indoor unit 10 0[ft] (0 m)
  • Page 22 Installation Procedure Step 13 Setting the indoor unit 2 Set the option values. addresses and the installation options CAUTION You cannot set both indoor unit addresses and the installation • The total number of available options are 24 : SEG1 options in a batch: set both respectively.
  • Page 23 Take the steps presented in the following table: Steps Remote control display 1 Set the SEG2 and SEG3 values: a Set the SEG2 value by pressing the button repeatedly until the value you want to set appears on the remote control display. SEG2 b Set the SEG3 value by pressing the button repeatedly until the value you...
  • Page 24 Installation Procedure Steps Remote control display 6 Press the button to move to next page. 7 Set the SEG9 and SEG10 values: a Set the SEG9 value by pressing the button repeatedly until the value you want to set appears on the remote control display. SEG9 b Set the SEG10 value by pressing the button repeatedly until the value you...
  • Page 25 Steps Remote control display b Set the SEG15 value by pressing the button repeatedly until the value you want to set appears on the remote control display. When you press the button, values appear in the following order: SEG15 12 Press the button to move to next page.
  • Page 26: Remote Control Display

    Installation Procedure Steps Remote control display 17 Set the SEG21 and SEG22 values: a Set the SEG21 value by pressing the button repeatedly until the value you want to set appears on the remote control display. SEG21 b Set the SEG22 value by pressing the button repeatedly until the value you want to set appears on the remote control display.
  • Page 27 • The indoor unit addresses (MAIN/MSB port) are set to 0A0000-100000-200000-300000 by default. NOTE • Also set the MSB and Indoor units address by using Add-on → Change address on Lennox Service Software. (For more information, see the Lennox Service Down + Software Help.)
  • Page 28 Installation Procedure Option No. for an indoor unit address: 0AXXXX-1XXXXX-2XXXXX-3XXXXX Option SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 Setting main 100-digit of an 10-digit of an The single digit of Function Page Mode address indoor unit address indoor unit address an indoor unit Indication Details Indication...
  • Page 29 Setting the indoor unit installation option 3 Set an address for each indoor unit using the remote (suitable for the condition of each installation control, according to your air conditioning system location) plan. • The indoor unit addresses are set to 020010- 1 Make sure that the power is supplied to the indoor 100000-200000-300000 by default.
  • Page 30 Installation Procedure • If you set an option to a value that is out of range specified above, the option is automatically set to 0 by default. • The SEG5 option (Use of central control) is set to 1 (Use) by default. Therefore, you don't need to set the SEG5 option additionally.
  • Page 31 Option SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 Function Page Use of drain pump Use of hot water heater EEV step when heating stops Indication Details Indication Details Indication Details Indication Details Disuse Disuse Default Indication and Use (*3) detail Adjusted EEV Step When an indoor unit stops, setting drain pump will operate...
  • Page 32 Installation Procedure Option SEG23 SEG24 Function Setting the MDS Kit installation option Cycle time of Swing Indication Details Indication Details Disuse (Soft Off+Hard off) (*8) Off after 20 min. (Soft Off+Hard off) Standard Off after 40 min. (Soft Off+Hard off) 34 seconds (default) Off after 80 min.
  • Page 33 Installation options for the 05 series SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 Use of Auto Change (When setting SEG3) Over for HR only in (When setting SEG3) (When setting SEG3) Standard for mode Auto mode / Use of Standard heating Standard cooling change Heating →...
  • Page 34 Installation Procedure Option SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 (When setting SEG3) Standard (When setting SEG3) Compensation option for Long Function Page Time required for mode pipe or height diffference MTFC (*3) for mode change Cooling → change between indoor units Heating Indication Details Indication Details...
  • Page 35 Option SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 Function Forcing FAN Operation for Heating and Cooling Details Indication Details Indication Cooling Fan Setting Heating Fan Setting Disuse Disuse Disuse Use (Fan: User setting) Disuse Use (Fan: High) Disuse Use (Fan: Low) Use (Fan: User setting) Disuse Use (Fan: User setting)
  • Page 36 Installation Procedure Additional information on SEG 3, 4, 5, 6, 8, 9 When SEG 3 is set to 1 and the HR-specific auto changeover function is run, the indoor unit operates as shown in the following figure: Temperature A: Set with SEG4 Reference temperature for change from heating to cooling B: Set with SEG5...
  • Page 37: Changing The Addresses And Options Individually

    Changing the addresses and options individually When you want to change the value of a specific option, refer to the following table and follow the steps in Common Common steps for setting the addresses and options on page 22. Option SEG1 SEG2 SEG3...
  • Page 38 Installation Procedure Optional: For the installation of the 4 Rotate the paper compass diametrically to draw a circle on the ceiling. circular panel Making a circular opening on the ceiling Use a paper compass printed on the indoor unit package. (attached inside to the upper part) 1 Use a bolt or a pin to fix pivot point of the paper compass on center of the ceiling.
  • Page 39: Troubleshooting

    Troubleshooting Indoor unit display indications Error Condition of the indoor unit Yellow code Ice blue Blue green Power reset (blinking once every 2 seconds) No error In the defrost operation (blinking once every 10 seconds) No error Open or short circuit error of the indoor-temperature sensor E121 Open or short circuit error of the evaporator-in sensor E122...
  • Page 40 Troubleshooting Indoor unit display indications Error Condition of the indoor unit Yellow code Ice blue Blue green 15. Compression ratio error of the outdoor unit E428 16. Outdoor sump down_1 prevention control E413 17. Compressor shutdown due to the low-pressure-sensor prevention E410 control_1 18.
  • Page 41 Memo English DB68-13133A-00_IM_VRF 360_AA_EN_.indd 41 DB68-13133A-00_IM_VRF 360_AA_EN_.indd 41 2024-08-06 오후 12:07:33 2024-08-06 오후 12:07:33...
  • Page 42 DB68-13133A-00_IM_VRF 360_AA_EN_.indd 42 DB68-13133A-00_IM_VRF 360_AA_EN_.indd 42 2024-08-06 오후 12:07:33 2024-08-06 오후 12:07:33...

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