GREE FLEXX24HP230V1AH Flexx Indoor Ultra Heating and Cooling Heat Pump Instruction Manual

GREE FLEXX24HP230V1AH Flexx Indoor Ultra Heating and Cooling Heat Pump Instruction Manual

INTRODUCTION

Thank you for choosing GREE!

GREE systems are among the most environmentally friendly and energy efficient in the market today. You can feel confident in your selection because the same pride in craftsmanship and engineering knowledge that goes into millions of other GREE installed products worldwide has gone into your unit.

COMFORT AND WELLNESS, IT’S WHAT WE DO
In 1991, GREE set out to make the world a cooler place. To this end, we’ve become a global leader in air conditioners, developing some of the most advanced commercial and residential air conditioners in the world. Based in Zhuhai, China, we’re now the world’s largest specialized air conditioner company integrating R&D, manufacturing, sales and service. It’s our mission to innovate and create new ways to help people live well and stay comfortable no matter where they live, work or play.

INNOVATION IS IN OUR DNA
Part of our responsibility is being mindful of the world we live in, which means we’re committed to using innovation to design more eco-friendly air conditioners. Every year we commit 3% of our budget to R&D. And, as a pioneer in the air conditioning industry, our R410A Refrigerant is ecofriendly.

LEADING THE WAY
From our humble beginning in 1991, GREE has grown over 80,000 strong across the world. With 3 research institutes, 9 product development centers, over 300+ labs and 5000+ engineers, we’ve absolutely committed to finding newer and more efficient ways to keep our customers comfortable, healthy and productive.

A GLOBAL CITIZEN OF THE WORLD
Today, we’ve developed some of the world’s most energy-efficient and technically advanced air conditioners. From the 2008 Beijing Olympic Games Media Village to the main stadium of the 2010 Africa World Cup, GREE is trusted to help people stay comfortable in the most extreme environments. Residentially, we’ve created wonders of technology that are just as contemporary, beautiful and efficient. Every day, over 100 million customers stay cool with GREE air conditioners.

For more information on the GREE product line please visit our site at
www.greecomfort.com or use the camera on your smart phone to scan the QR code below:

SAFETY PRECAUTIONS

Safety Precautions

WARNING

Please read this manual in its entirety and contact your local distributor with any questions before installing and operating this equipment.

Installation must be completed by a licensed HVAC contractor, and must comply with all applicable local, state, and federal codes and regulations. Licensed HVAC installing contractor must use factory-authorized kits or accessories when modifying this equipment. Improper installation, operation, adjustment, alteration, service, maintenance, or use can cause an explosion, fire, electrical shock, or other conditions which may cause death, personal injury, or property damage.

Recognize and be aware of all safety information and alert symbols. When you see the following symbols on the equipment and in the Installation Manuals, be alert to the potential for personal injury.

  DANGER| Indicates a hazardous situation that, if not avoided, will result in death or serious injury.
---|---
WARNING| Indicates a hazardous situation that, if not avoided, could result in death or serious injury.
CAUTION| Indicates a hazardous situation that, if not avoided, may result in minor or moderate injury.

NOTICE

| Indicates important but non-hazard related information, used to indicate risk of property damage.

It is important to understand these signal words: DANGER, WARNING, CAUTION, and NOTICE,  as these words are used with the safety-alert symbol.

GENERAL INFORMATION

Physical Dimensions…

Unit: inch (mm)

(508)
 | 24-3/4
(630)| 21-1/4
(540)| 57
(1448)| 11-5/8
(295)| 20
(508)
Air Filter| Dimensions
---|---
FLEXX24HP230V1AH| 19-1/4 x 20-1/4 x 1/2
FLEXX36HP230V1AH| (490 x 516 x 15)
FLEXX48HP230V1AH| 20-1/2 x 20-1/4 x 1/2
FLEXX60HP230V1AH| (525 x 516 x 15)

Fan Performance

Preparation

EQUIPMENT SIZING AND DUCT DESIGN
Using ACCA Manual J Residential Load Calculation and Manual D Residential Duct Design is recommended prior to installing the Indoor Unit to ensure optimum performance, efficiency, and comfort. Installing undersized or oversized equipment and ductwork will result in insufficient cooling or heating, high energy costs, premature failure, and will reduce the overall lifespan of the equipment.

CODES & REGULATIONS
This product is designed and manufactured to comply with all national codes. It is the licensed HVAC installing contractors responsibility to install the product in accordance with all local, state, and federal codes and regulations. The manufacture assumes no responsibility for equipment installed in violation of any codes or regulations.

FRIEGHT DAMAGE, CONCEALED DAMAGE, AND MISSING ITEMS
It is the licensed HVAC installing contractors responsibility to inspect the Indoor Unit for any damage and missing items at the time of receiving the equipment. Contact your local distributor immediately to report any issues before beginning the installation process.

EQUIPMENT AND MATERIALS
It is the licensed HVAC installing contractors responsibility to VERIFY all of the following before installing the Indoor Unit:

1. Model number of Indoor Unit and Outdoor Unit are compatible sizes.
2. Refrigerant pipe sizes required and minimum/maximum allowable lengths.
3. Condensate drain line size required.
4. Size/rating required for power supply wiring, circuit breaker, and fused disconnect.
5. Size/rating required for 24VAC low voltage control wiring.
6. Size, length, and ductwork material required per Duct Design to ensure that the airflow is in accordance with the Indoor Unit fan performance.

PERSONAL PROTECTIVE EQUIPMENT
It is the licensed HVAC installing contractors responsibility to follow all safety procedures and to utilize all required personal protective equipment including but not limited to gloves, safety glasses, steel toe boots, ear plugs, hard hats, respirators, coveralls, etc.

TOOLS
It is the licensed HVAC installing contractors responsibility to ensure the proper tools are utilized during the Installation and Start-Up of the Indoor Unit including but not limited to a Level, Tubing Cutter, Deburring Tool, R-410a Flaring Tool, Torque Wrench, Allen Wrenches, R-410a Refrigerant Gauges & Hoses, 1/4″ x 5/16” Adapter, Digital Refrigerant Scale, Dry Nitrogen and Regulator capable of reaching 500psi minimum, Vacuum Pump, Micron Gauge, Multimeter, Amp Clamp, Wire Strippers & Cutter, all miscellaneous screw drivers & wrenches, and any additional tools needed to complete a proper installation.

INSTALLATION

Required Clearances

Unit: inch (mm)

NOTE:
Front clearance required for air filter, blower wheel, evaporator coil, and condensate drain pan maintenance. It is the licensed HVAC installing contractors responsibility to install the product in accordance with any prevailing local, state, and federal codes and regulations
Air Filter

Blower Wheel

Evaporator Coil & Condensate Drain Pan

Refrigerant Piping…

REFRIGERANT PIPE SIZES

3/8

| ****

3/4

FLEXX36HP230V1AH
FLEXX48HP230V1AH
FLEXX60HP230V1AH

FLARED CONNECTION
Remove factory flare nuts from service valves and use with field installed refrigerant lines.

BRAZED CONNECTION (With use of optional accessory Adapter Pipe Kit)
Removed factory flare nuts from service valves and install optional accessory Adapter Pipe Kit.
Braze field installed refrigerant lines to the coupled end of each adapter pipe while flowing dry nitrogen through the copper pipe during the brazing process.

Condensate Drain
CONDENSATE DRAIN LINE CONNECTION
Remove condensate drain line cover to access primary and secondary drain line connections.
Remove the 3/4″ male threaded plug in order to field install a 3/4″ I.D. copper or PVC adapter fitting, P-trap, and drain line to allow for the condensate drainage during the cooling mode operation.

NOTE:
It is the licensed HVAC installing contractors responsibility to install the condensate drain line in accordance with any prevailing local, state, and federal codes and regulations.

P-trap must be deep enough to overcome static pressure while the fan is operating during the cooling mode operation.

CONDENSATE DRAIN PAN CONFIGURATION
Condensate drain pan is configured from the factory to allow for a Vertical or Horizontal Left installations. For Horizontal Right installations, remove the condensate drain pan and configure it to the opposite side of the Indoor Unit as shown below, for all condensate to drain through the factory drain pan and drain line connection.

Electrical

POWER SUPPLY

Model

| Nominal Operating

Voltage

| Operating Voltage

Range

| Minimum Circuit

Ampacity

| Maximum Overcurrent

Protection

---|---|---|---|---
FLEXX24HP230V1AH| ****

208-230V /1Ph / 60Hz

| ****

187-253V

| ****

4

| ****

15

FLEXX36HP230V1AH
FLEXX48HP230V1AH
FLEXX60HP230V1AH

WARNING
The Indoor Unit is manufactured for use with 208-230V / 1Ph / 60Hz electrical power supply and must not be reconfigured to operate with any other voltages. The Indoor Unit must have an uninterrupted, unbroken, electric grounding to minimize the possibility of serious injury or death if an electric fault occurs. It is the licensed HVAC installing contractors responsibility to install and/or hire a licensed electrical contractor to install the proper sized wiring, circuit breaker, fused service disconnect as well as follow all proper grounding methods in accordance with all local, state, and federal codes and regulations.

NOTE:
Installation of a field supplied Surge Protector is recommended to help protect equipment and electronics from electrical surges, blackouts, brownouts, and any other power supply issues.

LOW VOLTAGE CONTROL WIRING

NOTES:

1. Field installed low voltage control wiring must be a minimum of 18AWG.
2. Low voltage provided by terminal “R” in Indoor Unit is 24VAC.
3. Terminal “G” in Outdoor Unit is not used and does not require any field wiring to be connected to this terminal.
4. 4-Way Valve (Reversing Valve) is energized by terminal “B” in the Heating Mode and must be configured accordingly at the field installed thermostat.
5. Break “R” or “Y” from thermostat when using a field installed Condensate Overflow Safety.
   

It is the licensed HVAC installing contractors responsibility to install the Low Voltage Control Wiring in accordance with any prevailing local, state, and federal codes and regulations.

Optional Electric Heater

Indoor Unit Model| Cooling Capacity| Electric Heater Model| Electric Heater Size (kW)
---|---|---|---
FLEXX24 / 36HP230V1AH| 24K / 36K| FLEXXHTR5KW| 5
FLEXX24 / 36HP230V1AH| 24K / 36K| FLEXXHTR8KW| 8
FLEXX36 / 48 / 60HP230V1AH| 36K / 48K / 60K| FLEXXHTR10KW| 10
FLEXX48 / 60HP230V1AH| 48K / 60K| FLEXXHTR15KW| 15
FLEXX48 / 60HP230V1AH| 48K / 60K| FLEXXHTR20KW| 20

NOTES:

1. Optional Electric Heater “Sold Separately”.
2. When Optional Electric Heater is installed, Indoor Unit power supply must be connected to circuit breakers provided with Electric Heater. Refer to Electric Heater Installation Instructions for all electrical requirements
   

For more information on the optional Electric Heater, power supply requirements, and step-bystep installation instructions please visit www.greecomfort.com or use the camera on your smart phone to scan the QR code below:

Ductwork

WARNING
Do not install any return ductwork in an area that can introduce toxic, or objectionable fumes and/or odors into the system and supply air. It is the licensed HVAC installing contractors responsibility to properly install, seal, and insulate all ductwork and air distribution in accordance with all local, state, and federal codes and regulations.

NOTES:

1. Do not operate the Indoor Unit without all ductwork attached and completed.
2. Do not operate the Indoor Unit in any dust-laden construction sites or high chemical latent load environments where corrosion and damage to the equipment will occur.
3. Indoor Unit can be ducted for a Vertical, Horizontal Left, or Horizontal Right installation.
4. Indoor Unit cannot be installed for any Down Discharge applications.
5. See previous “2.1 Physical Dimensions” section for dimensions needed to size plenums.
6. Ductwork must be designed based off the Indoor Units fan capabilities, see previous “2.2 Fan Performance” section for details.
7. Using the ACCA Manual D Residential Duct Design to size all ductwork, and properly air balancing the system, is recommended to ensure optimum performance, efficiency, and comfort.

Leak Test

WARNING
It is the licensed HVAC installing contractors responsibility to follow all safety procedures and to utilize all required personal protective equipment while leak testing with high pressure dry nitrogen. Failure to do so could result in death or serious injury.

NOTES:

1. Indoor Unit has a factory R-410a holding charge as shown on data plate. Liquid and Gas service valve on Indoor Unit must remain in the closed position while leak testing both refrigerant lines with dry nitrogen.
2. Refrigerant lines must be leak tested to a minimum of 500 psi with the use of dry nitrogen and pressure must hold at 500 psi or higher for a minimum of 1 hour.
   

Recommend first pressurizing refrigerant lines to 100 psi with the use of dry nitrogen, then continuing to a minimum of 500 psi if no leaks are found to be present.

Evacuation

NOTES:

1. Safely release dry nitrogen from refrigerant lines.
2. Evacuate refrigerant lines with the use of a vacuum pump and micron gauge.
3. Refrigerant lines must be evacuated to a minimum of 200 microns or less.
   After shutting of vacuum pump, vacuum must hold for a minimum of 1 hour without rising above 500 microns to ensure that no moisture or non- condensables are present.
   

Recommend attaching micron gauge directly to the vacuum pump to test and verify it is capable of reaching 50-100 microns or less, before starting evacuation process. If this level of vacuum cannot be reached during the test, replacing the vacuum pump oil or vacuum pump itself may be necessary to achieve the 500 micron or less vacuum required.

Refrigerant Charge

NOTES:

1. Indoor Unit has a factory R-410a holding charge as shown on data plate.
2. Refer to FLEXX Outdoor Unit Installation Manual for refrigerant charge instructions.

Dip Switch Settings

NOTES:

1. Any changes to dip switch settings must be done while power is off.
2. Blower motor will NOT operate if dip switch configuration does not meet what is shown below for each setting.
3. Dip switches will be viewed in an upside-down orientation when Indoor Unit is installed vertically, and will change orientation in a Horizontal Left and Horizontal Right installation.
4. See previous “2.2 Fan Performance” section for details of Static Pressure and CFM
   

START-UP

Start-Up Checklist

It is the licensed HVAC installing contractors responsibility to CHECK and VERIFY all of the following BEFORE turning on power and starting up the Indoor Unit:

1. The Indoor Unit has been installed in accordance with all local, state, and federal codes and regulations.
2. Front clearance required for air filter, blower wheel, evaporator coil, and condensate drain pan maintenance has been met.
3. Refrigerant pipe sizes and lengths are in accordance with the size and lengths required.
4. Condensate drain line size has been installed in accordance with the size required.
5. Condensate drain line has been tested by pouring water in drain pan and verifying all water drains properly.
6. Power supply wiring, circuit breaker, and fused disconnect has been installed in accordance with the size/rating required.
7. Power supply has been verified with a multimeter to ensure it is in accordance with the Nominal Operating Voltage and Operating Voltage Range required.
8. Low voltage control wiring has been installed in accordance with the size/rating required.
9. Low voltage control wiring has been verified to ensure each wire is landed on the correct terminal in the Indoor Unit and at the field supplied/installed thermostat.
10. All ductwork is completely installed and sealed and volume dampers are in the open position.
11. All return and supply grilles in each room are in the open position and are not closed or blocked.
12. Leak test and evacuation has been completed.
13. Dip switches have been set in accordance to the required positions for the desired fan performance.
14. Air filter is installed and all access panels of Indoor Unit have been reinstalled and secured.
15. Liquid and Gas service valves are in the open position.

Start-Up Report

COMPLETE SECTIONS BELOW AND KEEP FOR FUTURE REFERENCE

Product Information

Installation Date: ____
Indoor Model No: ____
Indoor Serial No: ____
Outdoor Model No: ____
Outdoor Serial No: ____

Installer Information

Contractor Company: ____
Contractor Name: ____

It is the licensed HVAC installing contractors responsibility to provide the homeowner/end user with instruction and training on how to operate the system in cooling and heating from the field supplied/installed thermostat.

TROUBLESHOOTING

Troubleshooting

Check the following before contacting your local distributor and Tech Support:

Cooling, heating, or indoor fan does not operate.

| Thermostat not set to cool, heat, or fan on.| Verify thermostat mode settings and adjust accordingly.
Thermostat temperature setting.| Adjust thermostat temperature setpoint.

No power.

| Verify circuit breakers and service disconnects are in the on position
Utility company override control.| If enrolled in an energy discount plan, contact utility company for further details.

Insufficient cooling or heating.

| Dirty air filter.| Clean or replace indoor return air filter.
Thermostat temperature setting.| Adjust thermostat temperature setpoint.

Closed or blocked grilles.

| Verify all return and supply grilles in each room are not closed or blocked.

Opened doors or windows.

| Keep all doors and windows closed while operating system in cooling or heating.
Rooms exposed to excessive direct sunlight.| Close window covering to reduce heat load.
Restricted airflow at outdoor unit.| Keep area around outdoor unit clear and remove any debris or leaves from unit.

If none of the possible remedies above were able to resolve the problem, then please contact your local distributor and Tech support for further assistance in troubleshooting.

Maintenance & Care

Routine maintenance & care must be performed on this equipment to ensure that the system is running at its optimum performance and efficiency.

AIR FILTER
Check air filter every 30 days during cooling and heating seasons, and clean or replace it if its dirty. To access air filter, remove the filter access door and pull the air filter out of the Indoor Unit, as shown in the steps below:
Step 1:

Step 2:

INDOOR UNIT
Routine inspection and maintenance of the following must be completed regularly by a licensed HVAC contractor:

• Inspect and clean blower motor, blower wheel, and housing.
• Inspect all electrical components and tighten all wiring connections.
• Inspect and clean evaporator coil, condensate drain pan, and drain line.
• Test operation of equipment and perform any repairs necessary.

U.S. CONTACT INFORMATION TRADEWINDS, LLC
E-mail: [email protected]
Contractor Support: 888-850-7928
Mon-Fri 8 AM – 5 PM EDT

References

• Heating and Cooling Systems | GREE Comfort
• Heating and Cooling Systems | GREE Comfort

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