GREE GMV-24WL-C-T(U) Mini Heat Pump Instruction Manual

GREE GMV-24WL-C-T(U) Mini Heat Pump

Product Information

Specifications

• Nominal Capacity: Varies based on models, ranging from 24,000 to 60,000 BTU
• Min/Max Connections: Ranges from 18/16 to 23/20.75 for different models
• Pipe Connections: 1/4 to 1/10 depending on the model
• Max Lift: Up to 164 ft. equivalent
• Standard Heating Models: GMV-24WL/C-T(U), GMV-28WL/C-T(U), GMV-36WL/C-T(U), GMV-48WL/C-T(U), GMV-60WL/C-T(U)
• Ultra Heating Models: GMV-V36WL/C-T(U), GMV-V48WL/C-T(U), GMV-V60WL/C-T(U)
• Common Indoor Units: Wall Mount, Compact Cassette, Standard Cassette, One Way Cassette, Two Way Cassette, Console
• Factory Charge: Ranges from 5.3 to 10.11 lbs.
• Operating Range: Varies based on model

Product Usage Instructions

Installation

1. Ensure all pipe connections are secure.
2. Place the outdoor unit in a well-ventilated area with proper clearance.
3. Follow manufacturer guidelines for indoor unit installation.

Operation

1. Power on the outdoor unit first, followed by the indoor unit.
2. Select the desired mode (cooling, heating, etc.) using the remote control.
3. Set the temperature to your preference.

Maintenance

1. Regularly clean or replace air filters as recommended by the manufacturer.
2. Inspect and clean both indoor and outdoor units for any debris or obstructions.
3. Schedule annual professional maintenance to ensure optimal performance.

FAQ

Q: How often should I clean the air filters?

A: It is recommended to clean or replace the air filters every 1-2 months depending on usage.

Q: What should I do if the unit is not cooling/heating properly?

A: Check for any obstructions around the indoor and outdoor units, ensure proper airflow, and verify that the settings are correct. If issues persist, contact a professional technician.

Q: Can I install the unit myself?

A: Installation of the unit should be done by a qualified HVAC technician to ensure proper setup and performance.

Outdoor Units

Common Indoor Units

Combination Rules

Outdoor Unit Model| Max IDU Connected| Min IDU Connected Capacity (BTU) (50%)| Max **IDU Connected Capacity (BTU) (125%)***|
---|---|---|---|---
GMV-24WL/C-T(U)| 4| 12000| 30000| Use the MultiPRO Selector software available at GreeComfort.com for systems using multiple Y-branches, multiple headers, or combinations of Y-branches and Headers.

See “Basic Piping Rules Defined” below.

*** For systems above 125%, the MultiPRO Selector software must be used.

GMV-28WL/C-T(U)| 4| 14000| 35000
GMV-36WL/C-T(U)| 7| 18000| 45000
GMV-48WL/C-T(U)| 8| 24000| 60000
GMV-60WL/C-T(U)| 10| 30000| 75000
GMV-36WL/B-T(U)| 7| 18000| 45000
GMV-48WL/B-T(U)| 8| 24000| 60000
GMV-60WL/C-T(U)| 10| 30000| 75000

Control Options

Accessories

Refrigerant Piping Installation Guidelines & Descriptions

Refrigerant Piping

• Heat Pump has two pipes, liquid and gas
• Both must be insulated
• System mode is set by a user-determined Main indoor unit
• Twenty inches must be maintained between elbows, headers, and Y-branches

Y-Branches

• Specially designed for even distribution of refrigerant
• Each kit includes one Y-Branch for gas and one Y-Branch for liquid
• Simply use a tubing cutter for larger line sets
• If installed horizontally, they must be level
• If installed vertically, they must be plumb
• FQ01A/A is used for downstream capacities of less than 68kBtu
• FQ01B/A is used for downstream capacities of more than 68kBtu

Headers

• Specially designed for even distribution of refrigerant and oil
• Each kit includes one Header for gas and one Header for liquid
• Simply use a tubing cutter for larger line sets
• Must be installed horizontally and they must be level
• Liquid header is built with downward facing offset for installation next to gas header
• FQ14/H1 is used for 4 units or less
• FQ18/H1 is used for 8 units or less

Basic Piping Rules Defined

Note: The following is a basic set of rules for piping lengths. The MultiPRO systems are capable of far greater lengths and more complex configurations. Use our MultiPRO System Builder, and MultiPRO Selector, or see the installation manual for more details.

This guide is to be used for reference only and is not intended to replace the Installation Instructions or the design software. Always read and follow the software outputs and the Installation Instructions.
Copyright Tradewinds Climate Systems. All rights reserved V 4.05.24

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