Lennox 3PC036 Installation Instruction
  1. Manuals
  2. Brands
  3. Lennox Manuals
  4. Air Conditioner
  5. 3PC036
  6. Installation instruction

Lennox 3PC036 Installation Instruction

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
2021 Lennox Industries Inc.
©
Dallas, Texas, USA

Table of Contents

General ...........................................................................1
Included Parts.................................................................2
Model Number Identification ...........................................3
Indoor / Outdoor Unit Match-Ups....................................4
Typical System Components ..........................................4
System Dimensions ........................................................5
Outdoor Units ........................................................................5
Indoor Units ...........................................................................6
System Clearances ........................................................7
Outdoor Unit ..........................................................................7
Indoor Unit .............................................................................7
Indoor Unit Installation ....................................................8
Unit Placement Considerations .............................................8
Determining Wall Mounting Plate Location ...........................8
Installation of Wall Mounting Plate ........................................8
Installation of Wall Sleeve .....................................................9
Outdoor Unit Installation ...............................................10
Placement Considerations ..................................................10
Prevailing Winds ..................................................................11
Buried Refrigerant Pipe Protection ......................................12
Outdoor Unit Condensate Piping.........................................12
Securing the Outdoor Unit ...................................................12
Refrigerant Piping Connections ....................................13
Leak Test and Evacuation ............................................15
Leak Test .............................................................................15
Triple Evacuation Procedure ...............................................15
Wiring Connections ......................................................16
Outdoor Unit .......................................................................16
Indoor Unit ...........................................................................16
Unit Start-Up .................................................................18
Adding Refrigerant for Longer Line Set ........................18
Troubleshooting ............................................................19
Test Run .......................................................................20
Pre-Checks..........................................................................20
Procedure ............................................................................20
Double-Check Pipe Connections ........................................20
Manual Control Button ..................................................21
Dry Mode Operation (Dehumidification) .......................21
Procedure ............................................................................21
Sequence of Operation .......................................................21
Self Clean Feature........................................................22
User Information ...........................................................22
Indoor Unit Display ..............................................................22
Unit Features .......................................................................23
Louver Operations ...............................................................24
Manual Operation (without remote) .....................................24
Air Filter Reminders (Optional) ............................................24
INSTALLATION
INSTRUCTIONS
3PC036 Outdoor Unit with
3WMC036 Indoor Unit
SINGLE-ZONE MINI-SPLIT SYSTEM
(208/230V)
507784-02 10/2021
Supersedes 507784-01
THIS MANUAL MUST BE LEFT WITH THE OWNER
FOR FUTURE REFERENCE
WARNING
Improper installation, adjustment, alteration, ser vice or
maintenance can cause property damage, personal
injury or loss of life.
Installation and service must be performed by a li censed
professional HVAC installer (or equivalent) or a service
agency.
WARNING
The clean Air Act of 1990 bans the intentional venting of
refrigerant (CFCs, HCFCs, and HFCs) as of July, 1992.
Approved methods of recovery, recycling or reclaiming
must be followed. Fines and/or incarceration may be
levied for non-compliance.
CAUTION
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves and
protective clothing.

General

Refer to the Product Specifications bulletin (EHB) for
more product information. These instructions are intended
as a general guide and do not supersede local or national
codes in any way. Authorities having jurisdiction should be
consulted before installation.
This wall-mounted indoor unit is matched with an outdoor
heat pump unit to create a mini-split system that uses
HFC-410A refrigerant.

Advertisement

Table of Contents
loading

Related Manuals for Lennox 3PC036

Summary of Contents for Lennox 3PC036

  • Page 1: Table Of Contents

    INSTALLATION INSTRUCTIONS 2021 Lennox Industries Inc. © 3PC036 Outdoor Unit with Dallas, Texas, USA 3WMC036 Indoor Unit SINGLE-ZONE MINI-SPLIT SYSTEM (208/230V) Table of Contents 507784-02 10/2021 General ................1 Supersedes 507784-01 Included Parts..............2 THIS MANUAL MUST BE LEFT WITH THE OWNER Model Number Identification ...........3...

  • Page 2: Included Parts

    Included Parts Package 1 of 1 contains the following: 1 - Assembled Indoor Unit The assembled indoor unit will include the following items: Parts Figure Quantity Parts Figure Quantity Installation instruction and Wireless Remote wireless controller user 1 ea. Control guide.

  • Page 3: Model Number Identification

    Model Number Identification OUTDOOR SINGLE ZONE HEAT PUMP UNITS 3 P C 036 S 4 S - 1 P Series Type Voltage 3 = 3 ton outdoor unit for P = 208/230V-1 phase-60hz 3PC/3WMC Wall-Mount system Minor Design Sequence Unit Type 1 = 1st Revision P = Heat Pump Refrigerant Circuits...

  • Page 4: Indoor / Outdoor Unit Match-Ups

    Indoor / Outdoor Unit Match-Ups Outdoor Unit Indoor Unit Voltage 208/230V 3PC036S4S-1P 3WMC036S4-1P Typical System Components Line set (wrapped in foam insulation) Wiring TAPE Condensate drain line (wrapped in foam insulation) Refrigerant Line Set, Condensate Line And Indoor / Outdoor Cable (field-provided) IMPORTANT - The refrigerant metering device for this system is...

  • Page 5: System Dimensions

    System Dimensions Outdoor Units DRAIN HOLE (Bottom of Unit) 18-1/8 (460) 3-5/8 (92) 15-7/8 (403) 15-1/4 (387) (457) 1 (25) 2-7/8 (73) TOP VIEW 40-1/2 (1029) 31-7/8 (810) GAS VALVE LIQUID VALVE 2-3/8 (60) 4-1/4 (108) 26-1/2 (673) 16-1/8 (410) SIDE VIEW 37-1/4 (946) FRONT VIEW...

  • Page 6: Indoor Units

    Indoor Units 46-7/8 (1191) 14-5/8 (371) (279) FRONT VIEW SIDE VIEW BOTTOM VIEW Figure 3. Indoor Unit Dimensions - Inches (mm) Indoor unit outline 22-1/2 (570) 2-3/8 (60) BUBBLE LEVEL 14-5/8 (371) inch LIQUID 2-3/4 inch (51) RECOMMAND (70) 2 (51) 2 (51) 44-7/8 (1140) Left rear side...

  • Page 7: System Clearances

    System Clearances Outdoor Unit 24 (610) Air Inlet (305) (305) (610) (2007) Air Outlet Minimum rear clearance can be 6 inches (152 mm) when mounted on brackets and with no obstructions on the other three sides. Figure 5. Outdoor Unit Clearances - Inches (mm) Indoor Unit Ceiling 6”...

  • Page 8: Torque Requirements For Caps And Fasteners

    See the Lennox Service and Application Notes C-08-1 for Determining Wall Mounting Plate Location further details and information. Table 1. Torque Requirements...

  • Page 9: Installation Of Wall Sleeve

    Installation of Indoor Unit on Wall Mounting Plate fixings may be required depending on wall construction. Use the appropriate type of anchors 1. A length of field-provided flexible condensate piping for the application. should be connected to the drain prior to securing the 3.

  • Page 10: Outdoor Unit Installation

    3. Drain should be as short as possible and should Building Structure not have any droops or kinks that would restrict condensate flow and shall be approved resistant pipe. There must be a 2-inch (51 mm) space between the end of the condensate drain and the final termination point (ground, open drain, etc.) to ensure that the line will drain freely.

  • Page 11: Prevailing Winds

    • Place unit away from overhanging roof lines which would allow water or ice to drop on, or in front of, coil or into unit. Construct a canopy as illustrated in “Figure 13. Outdoor Unit on Pedestal and Protective Canopy”. •...

  • Page 12: Buried Refrigerant Pipe Protection

    • Outdoor unit can be installed in a alcove or under • In addition to insulating each line of piping, buried lines a roof overhang as illustrated in “Figure 19. Unit In- must rest inside a sealed, watertight conduit. stalled in Alcove”. •...

  • Page 13: Refrigerant Piping Connections

    1. Choose the correct pipe sizes for your application using “Table 3. Refrigerant Piping and Indoor Unit Connection Sizes” on page 14. 2. Confirm that you are using the correct diameter piping. 3. Determine the necessary piping length required for the application.
  • Page 14 12. Remove the flare nuts from the connections on the 16. Once snug, continue another half-turn on each nut unit and discard the seal from each of the piping which should create a leak-free joint. A torque wrench connections. may be used to tighten flare nuts using “Table 4. Flare Nut Torque Recommendations”.

  • Page 15: Leak Test And Evacuation

    Table 5. Refrigerant Line Set Requirements Minimum Line Set Length - 10 ft. (3m) Maximum Line Set OUTDOOR UNIT INDOOR UNIT Length Maximum Line Set Length Maximum Maximum Elevation - Elevation - INDOOR UNIT Outdooor Outdooor Unit BELOW Unit ABOVE Indoor Unit Indoor Unit OUTDOOR UNIT...

  • Page 16: Wiring Connections

    Wiring Connections • See “Figure 27. 3PC036 Outdoor Unit Wiring Diagram” on page 17 for communication bus connections be- WARNING tween indoor and outdoor units. NOTE: When installing a condensate pump the line voltage Electric Shock Hazard.
  • Page 17 NOTE: Recommend to use two-core shielded wire. Figure 27. 3PC036 Outdoor Unit Wiring Diagram...

  • Page 18: Unit Start-Up

    HORIZONTAL INDOOR WIRING DIAGRAM DC FAN SWING MOTOR M MOTOR 5(10) CN12 Output:310VDC Output: CN19 L-OUT (or 140VDC) 12VDC VERTICAL Input:230VAC Output: SWING MOTOR (or 115VAC) 12VDC CN22 L-IN(or CN 2) BLUE(BLACK) MAIN CONTROL BOARD N-IN Input:230VAC CN15 (or 115VAC) YELLOW Output: INDOOR COIL...

  • Page 19: Troubleshooting

    Troubleshooting Table 9. Indoor Unit Error and Status Code Display Table 9. Indoor Unit Error and Status Display Type Information Code Display Error Outdoor low ambient temperature protection. PC 0L Display Type Information Indoor units mode conflict (match with multi Error Status Defrost...

  • Page 20: Test Run

    • COOL - Select lowest possible temperature. Table 10. 3PC Single Zone Outdoor Unit Error Codes • HEAT - Select highest possible temperature. 4. Let each function run for 5 minutes, and perform the Display Malfunction and Protection Indication following checks: Table 11.

  • Page 21: Manual Control Button

    Sequence of Operation Manual Control Button When in dry mode operation the unit is actually in cooling mode with a low speed blower operation. Set remote temp to a lower room temp to begin the dry mode operation. The compressor will stop when the room temperature is 4°F (2°C) lower than the temperature setting.

  • Page 22: Self Clean Feature

    Self Clean Feature Figure 30. Self Clean User Information Indoor Unit Display Air Filter (pull up) Front Panel Remote Control Louver Boost Humidity Remote Control ECO intelligent eye Holder Display window Figure 31. Indoor Unit Display...

  • Page 23: Unit Features

    Table 12. Display Window - Codes and Indicators Display temperature (Celsius or Fahrenheit). 88 . 8 On icon is for three seconds when: • TIMER ON is set (if the unit is off. ON remains on when TIMER ON is set. •...

  • Page 24: Louver Operations

    Louver Operations NOTE: Do not move louver by hand. This will cause the louver to become out of sync. If this occurs, turn off the unit and unplug it for a few seconds, AUTO COOL Setting Vertical Angle of Airflow - While the unit is on, use the SWING button on remote control to set the direction (vertical angle) of airflow.

This manual is also suitable for:

3wmc036

Table of Contents