FCC ID: 2ATMVC8ZII SPA HEAT PUMP

CLIM8ZONE II 120V SPA HEAT PUMP User and Service manual Spa Heat Pump User and Service Manual (standalone mode) INDEX 1. Specifications 2. Dimension 3. Installation and connections 4. Electrical Wiring 5. Controller Panel Operation 6. Wifi Connection and Operation 7. Maintenance IMPORTANT SAFETY INSTRUCTIONS READ AND FOLLOW ALL INSTRUCTIONS This manual contains all the necessary information for the use and installation of your heat pump 1. To ensure personal safety and prevent equipment damage, it is important to follow all safety instructions provided on the equipment and within this manual. 2. The installer must read the manual carefully and follow the instructions for installation and maintenance. The installer is responsible for the product's installation and should follow all the manufacturer's instructions and applicable regulations. 3. The manufacturer is not responsible for any damage caused to people, objects, or errors resulting from installation that disregards the manual guidelines. 4. Any use that does not conform to the product's original manufacturing is considered hazardous. 5. The warranty may become void if the equipment is not installed, maintained, or serviced properly. Improper installation contrary to the manual will void the entire warranty. 6. Any use that does not conform to the product's original manufacturing is considered hazardous. 7. Any repair or service of the heat pump should only be carried out by an authorized service center. 8. In case of necessary service, please get in touch with your local sales representative. SAFETY SIGNALS:

This document contains safety signals placed where specific attention is necessary. DANGER: Disregarding the following instructions will result in serious injury or even death. WARNING: Disregarding the following instructions can result in serious injury or even death. NOTICE: Disregarding the following instructions can result in damage to your heat pump. When installing and using your heat pump, it is crucial to always follow basic safety precautions. Please take note of the following warnings to ensure the safety of yourself and others. 2 DANGERS: Disregarding the following instructions will result in serious injury or even death The heat pump utilizes high voltage and rotating equipment, so use caution when servicing. Always turn off the power supply before opening the cabinet to access the interior of the heat pump, as there is high voltage electricity inside. This heat pump is equipped with variable frequency compressor drive store electricity even after the power has been deactivated at the power breaker. Wait for 5 minutes after the shutdown of equipment before servicing. Follow all National Electric Codes (NEC) and CEC or State and Local guidelines. WARNINGS: Disregarding the following instructions can result in serious injury or even death. Installation and repairs must be performed by a qualified technician. The heat pump contains refrigerant under pressure. Repairs to the refrigerant circuit must not be attempted by untrained and/or unqualified individuals. Service must be performed only by qualified HVAC technicians. Recover refrigerant before opening the system. Improper water chemistry can present a serious health hazard. To avoid possible hazards, maintain pool/spa water per standards as detailed in hot tub or spa manual instructions. Prolonged immersion in water warmer than normal body temperature may cause a condition known as Hyperthermia. People having an adverse medical history or pregnant women should consult a physician before using a hot tub or spa. Children and the elderly should be supervised by a responsible adult. Prolonged immersion in water colder than normal body temperature may cause a condition known as Hypothermia. Persons having an adverse medical history or pregnant women should consult a physician before immersing in a cold body of water. Children and the elderly should be supervised by a responsible adult. Do not use any methods to speed up the defrosting process or for cleaning, other than those recommended by the manufacturer. The appliance must be stored in a room without continuously operating ignition sources, such as open flames, operating gas appliances, or operating electric heaters. Do not puncture or burn the appliance. It is recommended to install the unit outdoors. If it must be installed indoors, ensure that ventilation is adequate. Please note that refrigerants may not have an odor. NOTICES: Disregarding the following instructions can result in damage to your heat pump. Maintain proper water chemistry to avoid damage to the pump, filter, hot tub or spa shell, etc. Water flow exceeding the maximum flow rate requires a bypass. Damage due to excessive water flow will void the warranty. Please ensure to keep the display controller in a dry area to prevent it from being damaged by humidity. Always remember to drain the water from the heat pump during winterization. Failure to do so may result in damage to the Titanium exchanger due to freezing, which will void your warranty. WARNING: Installation must be performed in accordance with the NEC/CEC and local code by an authorized person only. 3 WARNING: Make sure the switch is turned to the power off position before install the heat pump or maintenance the heat pump WARNING: To reduce the risk of injury, this appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety at all times. Children should be supervised to ensure that they do not play with the appliance. WARNING: A wire connector is provided on this unit to connect a minimum 6 AWG (13.3 mm2) solid copper conductor between this unit and any metal equipment, metal enclosures of electrical equipment, metal water pipe, or conduit within 5 feet (1.5 m) of the unit. WARNING: A terminal marked G, GR, Ground, Grounding, or the symbol is located inside the supply terminal box or compartment. To reduce the risk of electric shock, this terminal must be connected to the grounding means provided in the electric supply service panel with a continuous copper wire equivalent in size to the circuit conductors supplying this equipment. WARNING: All field-installed metal components such as rails, ladders, drains, or other similar hardware within 3 m of the spa or hot tub shall be bonded to the equipment grounding bus with copper conductors not smaller than No. 6 AWG (13.3 mm2). WARNING: DO NOT USE SPAS OR HOT TUBS UNLESS ALL SUCTION GUARDS ARE INSTALLED TO PREVENT BODY AND HAIR ENTRAPMENT WARNING: TO AVOID INJURY, EXERCISE CARE WHEN ENTERING OR EXITING THE SPA OR HOT TUB. WARNING: PREGNANT OR POSSIBLY PREGNANT WOMEN SHOULD CONSULT A PHYSICIAN BEFORE USING A SPA OR HOT TUB. WARNING: DO NOT USE A SPA OR HOT TUB IMMEDIATELY FOLLOWING STRENUOUS EXERCISE. WARNING: PROLONGED IMMERSION IN A SPA OR HOT TUB CAN BE INJURIOUS TO YOUR HEALTH. CAUTION: MAINTAIN WATER CHEMISTRY IN ACCORDANCE WITH MANUFACTURER'S INSTRUCTIONS. DANGER: Risk of Accidental Drowning. Extreme caution must be exercised to prevent unauthorized access by children. To avoid accidents, ensure that children cannot use a spa or hot tub unless they are closely supervised at all times. DANGER Risk of Injury. The suction fittings in this spa are sized to match the specific water flow created by the pump. Should the need arise to replace the suction fittings or the pump, be sure that the flow rates are compatible. Never operate spa if the suction fittings are broken or missing. Never replace a suction fitting with one rated less than the flow rate marked on the original suction fitting. 4 DANGER: Risk of Electric Shock. Install at least 5 feet (1.5 m) from inside wall of hot tub or spa using nonmetallic plumbing. DANGER Risk of Electric Shock. Install at least 5 feet (1.5 m) from all metal surfaces. As an alternative, a spa may be installed within 5 feet of metal surfaces if each metal surface is permanently connected by a minimum 6 AWG (13.3 mm2) solid copper conductor to the wire connector on the terminal box that is provided for this purpose. DANGER Risk of Electric Shock. Do not permit any electric appliance, such as a light, telephone, radio, or television, within 5 feet (1.5 m) of a spa. WARNING To reduce the risk of injury:

a) The water in a spa should never exceed 40 C (104 F). Water temperatures between 38C

(100F) and 40C are considered safe for a healthy adult. Lower water temperatures are recommended for young children and when spa use exceeds 10 minutes. b) Since excessive water temperatures have a high potential for causing fetal damage during the early months of pregnancy, pregnant or possibly pregnant women should limit spa water temperatures to 38C (100F). c) Before entering a spa or hot tub, the user should measure the water temperature since the tolerance of water temperature-regulating devices varies. d) The use of alcohol, drugs, or medication before or during spa or hot tub use may lead to unconsciousness with the possibility of drowning. e) Obese persons and persons with a history of heart disease, low or high blood pressure, circulatory system problems, or diabetes should consult a physician before using a spa. f) Persons using medication should consult a physician before using a spa or hot tub since some medication may induce drowsiness while other medication may affect heart rate, blood pressure, and circulation. Caution: The user is cautioned that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas licence-exempt RSS(s) and Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference.

(2) This device must accept any interference, including interference that may cause undesired operation Lmetteur/rcepteur exempt de licence contenu dans le prsent appareil est conforme aux CNR dInnovation, Sciences et Dveloppement conomique Canada applicables aux appareils radio exempts de licence. Lexploitation est autorise aux deux conditions suivantes :

(1) Lappareil ne doit pas produire de brouillage;

(2) Lappareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible den compromettre le fonctionnement. 5 Caution:The manufacturer is not responsible for any radio or tv interference causeld by unauthorized modifications or change to this equi pment. such modifications or change could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

-- Reorient or relocate the receiving antenna.

-- Increase the separation between the equipment and receiver.

-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

-- Consult the dealer or an experienced radio/TV technician for help. FCC& IC Radiation Exposure Statement:

This equipment complies with FCC and Canada radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Dclaration dIC sur lexposition aux radiations:

Cet quipement est conforme aux limites dexposition aux radiations dfinies par le Canada pour des environnements non contrls. Cet quipement doit tre install et utilis une distance minimum de 20 cm entre lantenne et votre corps. Cet metteur ne doit pas tre install au mme endroit ni utilis avec une autre antenne ou un autre metteur. SAVE THESE INSTRUCTIONS 1. Specifications 6 1.1 Technical data 120V Clim8zone II Compact Heat Pump for Spas Product model C8ZII-120V Advised maximum spa volumegallons / with cover) Heating operating ambient temperature rangeF Cooling operating ambient temperature rangeF Operating water temperature() heating Operating water temperature() cooling heating*

heating**

Heating capacity (kW) Heating capacity (BTU/h) Input power (kW) COP Heating capacity (kW) Heating capacity (BTU/h) Input power (kW) COP Cooling capacity (kW) Maximum current (A) Advised water flowGPM IP Grade (Level of protection) Anti-electric shock Rate Noise (dB(A)) in 1 meter Net weight/Gross weight(lbs) Diameter of pipe (inch) Metal plate Body size(W*D*H) (inch) Refrigerant Power supply Condenser P a r a m e t e r s C o n f i g u r a t i o n S t a n d a r d 600 23 ~109 50~104 15~40 5~35 4.0~1.0 13600~3400 0.8~0.11 5.0~9.5 2.5~0.65 8500~2210 0.6~0.1 4.0~6.1 1.6 10.5 7.5 IPX4 I 45 62/67 1.5 socket Metal Casing 19.5 x 19.6 x 19.1 R410A/350g 120V/1 Ph/60Hz Titanium in PVC Remark: heating*: working condition, Inlet water temperature 78.8F, Outlet water temperature 82.4F, Dry bulb temperature 80.6F. Humidity 80%. heating**: working condition, Inlet water temperature 78.8F Outlet water temperature 82.4F Dry bulb temperature 59F Humidity 70%. Cooling: working condition, Inlet water temperature 82.4F Dry bulb temperature 95F Humidity 80%. 2. Dimension (mm) 7 2.1 unit: mm 2.2 Exploded View 8 9 3. Installation and connections 3.1 Notes The factory supplies only the heat pump. All other components must be provided by the user or the installer. Install a bypass if the water flow from the water pump is more than 20% greater than the allowable flow through the heat exchanger of the heat pump. Always place the heat pump on a solid foundation and use the included rubber mounts to avoid vibration and noise. Always hold the heat pump upright. If the unit has been held at an angle, wait at least 24 hours before starting the heat pump. 3.2 Heat pump location The unit will work properly in any desired location as long as the following three items are present:

1. Fresh air 2. Electricity 3. Adequate water flow The unit may be installed in virtually any outdoor location as long as the specified minimum distances to other objects are maintained (see drawing below). To protect the unit from snow and rain, it is suggested to add an open sides shed cover over the heat pump. Please consult your installer for installation with an indoor spa. Installation in a windy location does not present any problem at all, unlike the situation with a gas heater (including pilot flame problems). ATTENTION:

Never install the unit in a closed room with a limited air volume in which the air expelled from the unit will be reused, or close to shrubbery that could block the air inlet. Such locations impair the continuous supply of fresh air, resulting in reduced efficiency and possibly preventing sufficient heat output. See the drawing below for minimum dimensions. 3.3 Distance from your spa The heat pump is normally installed within a perimeter area extending 2m (6.5ft) from the spa. To minimize heat lost, it is recommended to add insulations over the pipes connecting the heat pump and the spa. 10 3.4 Plumbing Connections 3.4.1 Plumbing diagram 3.4.2 Check-valve installation (recommended) If automatic dosing equipment for chlorine and acidity (pH) is used, it is essential to protect the heat pump against excessively high chemical concentrations which may corrode the heat exchanger. For this reason, equipment of this sort must always be fitted in the piping on the downstream side of the heat pump, and it is recommended to install a check-

valve to prevent reverse flow in the absence of water circulation. Damage to the heat pump caused by failure to follow this instruction is not covered by the warranty. 3.5 Electrical connection DANGER: Electrical connections below must be done by a qualified and licensed electrician. Failure to do so injury or death may occur. 1. Turn the spa breaker to OFF position before making electrical connection. 2. Make sure electrical ratings of the power source match with the electrical ratings marked on the label of this unit. 3. Attention: This unit is provided with a grounding lug and must be electrically bonded to the spa common bonding grid. Connect the grounding lug with the spa common bonding grid with a #8 minimum solid copper wire. 4. Power to this unit must be supplied through a GFCI having a rated residual operating current not exceeding 5mA. 5. Connect the unit to 120VAC AV port of the spa controller. A splitter (PN 22934, not included) may be needed if the 6. AV port is being used for other equipment. If a spa controller is not used, the unit may be hard wired to 120VAC power supply panel and must be done by a licensed electrician. The unit may also be plugged into a dedicated 120VAC power supply junction box. 3.6 Initial operation Note: In order for the heat pump to operate, the water circulating pump must be running to cause the water to circulate through the heat pump. The heat pump will not start up if the water is not circulating. After all connections have been made and checked, follow the following procedure:

1. Switch on the water circulating pump. Check for leaks and verify that water is flowing from and to the spa. 2. Switch on power to the heat pump. 11 3. Press the Power button on front panel for 2 seconds. 4. Set the unit to Heat or Cool mode by pressing the Mode button. Heating = Red LED on. Cooling = Green LED on. 5. Set temperature by pressing Up or Down buttons. 6. The unit will start up after the time delay expires. 7. After a few minutes, air will be blowing out of the fan grill. 8. Complete!

Time delay - The heat pump has a built-in 3-minute start-up delay to protect the circuitry and avoid excessive contact wear. The unit will restart automatically after this time delay expires. Even a brief power interruption will trigger this time delay and prevent the unit from restarting immediately. Additional power interruptions during this delay period do not affect the 3-minute duration of the delay. 3.7 Condensation In heat mode, the air drawn into the heat pump is greatly cooled by the operation of the heat pump for heating the spa water, which may cause condensation on the fins of the evaporator. The amount of condensation may be as much as several litters per hour at high relative humidity. This is condensation water, not leaked water. 4. Electrical Wiring 4.1 CLIM8ZONE II HEAT PUMP WIRING DIADRAM 12 5. Controller Panel Operation 5.1 Controller Panel Display:

5.2 Button Descriptions:

No Key Description 1 2 3 4 5 6 7 8 9 10 Turn ON/OFF the controller panel Increase the setting values. Decrease the setting values. Change modes. Red LED On Heating mode Green LED On Cooling mode The red light and the green light on for 3 seconds at the same time, then the red light on The red light and the green light on for 3 seconds at the same time, then the green light on Automatic heating Automatic cooling Red LED flashing Defrosting mode Red & Green LED Off Heat pump OFF 5.3 Operation Instruction:

1. Turn ON/OFF Press the button for 2 seconds. 2. Mode conversion Press button to switch heat / cooling mode; Heating =Red LED On ; Cooling = Green LED On. 13 3. Change temperature unit Fahrenheit/Celsius Long press three buttons

at the same time to switch the display of Fahrenheit and Celsius. 4. Forced defrosting When the outer coil pipe temperature is below the Exit Defrosting Temperature, press two buttons

for 3 seconds to enter the Forced Defrosting. 5. Change Set Temperatures:

Set temperatures can be adjusted by pressing Up or Down buttons. 6. Status Query To enter the unit status query, press button for 3 seconds to view the temperature parameters. See table below. Query code Meaning Display the range Status Query Table A01 A02 A03 A04 A05 A06 A08 A10 A11 A12 A13 A14 A15 A16 Inlet water temp. Outlet water temp. Ambient temp. Exhaust temp. Return gas temp. Outer coil temp.

-30~99

-30~99

-30~99 0~125

-30~99

-30~99 Electronic expansion valve 0~480 opening degree Compressor current Heat-sink temperature DC bus voltage value Actual compressor speed Total main board current DC fan speed 0~1590 Unit operation mode 0AP* mode/1: BP** mode

* AP = Standalone; ** BP = Integrated with Balboa BP Spa Controller 7. Change Unit operation mode Long press two buttons and for 15 seconds at the same time to switch between AP and BP modes;

A16: = 0 heat pump operates in AP mode; A16 = 1: heat pump operates in BP mode. 5.4. Query and setting of the system parameters Query: Press button for 3 seconds to enter the parameter query state. Press or button to switch from one parameter to another. Press button to view the value of the parameter. Press button to return and exit the query. Modify: To modify the parameter, a password will be needed. The password is 68. Follow the below procedure:

Long press and button to enter the input password interface, Press button to enter the first password digit "6" by pressing or buttons, 14 Press button to advance to the second password digit and enter "8" by pressing or buttons, Press button to submit the password. After entering, select or change parameters by using or buttons Press button to make entry changes or confirm and return to the viewing status. System parameter table Parameter name Adjust range Default value Parameter code P01 P02 P03 P04 P05 Return Difference for Target Water Temp. Reserved Setting temp. In automatic mode Cooling setting temp. Heating setting temp. P06=TP4 The setting temp. that Exhaust temp. too high protection P07=TP0 Recover The setting temp. from the too high exhaust temp. 1~18 1(2)

5~40 8~28 15~40

27(40) 27(81) 27(79) 80~125 110(230) 50~100 90(194) P08 P09 P10 P11 P12 P13 P14 P15 Compressor current protection 2A~50A Reserved--Without this function Inlet water temp. compensation

-5~15 0(0) Reserved Defrosting cycle

20MIN~90MIN 40MIN Defrosting enters the temp.

-15~-1

-3(27) Defrosting time 2MIN~20MIN 5MIN Desrosting exit temperature Temp. difference between defrosting environment and coil pipe 1~40 0~15 18(64) 5(10) P16 Ambient temperature of the 0~20 17(63) P17 P18 defrosting Expansion valve cycle Overheat Degree in Heating Mode 20-90

-5-10 30 3 15 P19 P20 Main valve set exhaust gas 70-125 Main valve defrosting opening 2-45 degree P21 Minimum opening degree of 5-15 the main valve P22 Expansion valve mode 0 Manual /

1 Automatic P23 P24 Manual steps of the main valve Cooling opening degree of the 2-45 2-45 main valve 95 30 8 1 35 30 5.5. Error Code table Error code Error description description Solution suggestion E03 Water flow failure 1. The water flow switch fault 1.Check the water flow switch 2. Low water flow and replace it if it is faulty 3. The inlet and outlet water are 2.Check the water valve and reversed the temperature difference 4. There is air in the pipe between inlet and outlet water 5. The pipe blocked 3.Whether the inlet and outlet water pipes are correctly connected 4.Emptying 5.Pipe cleaning E04 winter anti-freezing The ambient temperature is lower Normal protection E05 High pressure protection 1. Low water flow 1. Check whether the than the antifreeze setting value procedure 2.. Pressure switch fault temperature difference 3. The fan motor unwork or between inlet and outlet water the speed too low is too large, and whether the 4.Overcharged the refrigerant outlet water temperature is too high 2. Use a multimeter to check whether the high voltage protection switch works 3. Check the water flow of the water pump and the speed of the fan 4. Refill the refrigerant E10 Communication fault of 1. The main board or driver 1. Replace the main board or driver board 16 frequency conversion board damaged module (alarm when 2. The connector of the communication is communication cable between disconnected between the main board and the driver external board and drive board is in poor contact or falls board) off 2. Check the communication cables between the main board and driver board 3. Replace the communication cable 3. The communication cable is damaged E12 Exhaust too high protection 1. Less refrigerant or leakage 1. Refill the refrigerant 2. The system blocked 2. Replace the filter 3. Compressor refrigerant oil 3. Add refrigerant oil to is insufficient the compressor 4. The resistance value of the 4. Replace the exhaust exhaust probe is offset, and the probe and reconnect the water inlet temperature probe is inlet temperature probe dropped The sensor plug is in poor contact or off, or the sensor is damaged Check and replace the water inlet temperature sensor(T2 sensor) E15 Inlet water temp. Error E16 Outer coil pipe temp. The sensor plug is in poor contact Check and replace the coil Error or off, or the sensor is damaged pipe temperature sensor(T3) E18 Exhaust gas temp. Error The sensor plug is in poor contact Check and replace the exhaust or off, or the sensor is damaged gas temperature sensor(T1) E20 Abnormal protection of IPM module internal fault, frequency conversion check related problems according module to the attached table E21 Ambient temp. Error The sensor plug is in poor contact Check and replace the ambient or off, or the sensor is damaged temperature sensor(T4) E23 Too low cooling outlet Check whether the water flow water temp protection Outlet water temp lower than 2 or water system is jammed or E27 Outlet temperature fault The sensor plug is in poor contact Check and replace the water or off, or the sensor is damaged outlet temperature sensor(T6) E29 Return gas temp. Error The sensor plug is in poor contact Check and replace the suction or off, or the sensor is damaged gas sensor(T5) E46 DC Fan Error 1.Dc fan failure 1. Replace the DC fan not 2.Plug is in poor contact or 2. Reconnect cables to the off DC fan E20 fault will display the following error codes at the same time, the error codes will switch every 3 seconds. Among them, error codes 1-128 are displayed in priority. When error codes 1-128 dont appear, then error codes 257-384 can show. 17 If two or more error codes appear at the same time, then display error codes accumulation. For example, 16 and 32 occur at the same time, display 48 Error Code 1 name description Solution suggestion IPM Over-current 1. The IPM overloaded or overheated 2. The U,V,W driver short-

circuited 3. The IPM module fault 4. The compressor damaged 1 Ensure that the ring temperature, water temperature, water flow, etc. are within the operating range of the unit;

2. Use a multimeter to measure the motor U,V,W in ohmic gear 2 compressor synchronous abnormal 8 compressor output phase absent 16 DC bus low voltage 32 DC bus high voltage The compressor 1. overloaded instantaneously 2. The compressor does not match the program 3. The difference between high and low pressure starts the compressor excessively 1. The U, V, and W cables of the compressor are missing or improperly connected 2. The compressor does not match the program 3. The difference between high and low pressure starts the compressor excessively 1. The power supply unstable 2.AC suddenly power off, the inverter capacitor residual power supply chip detects that the DC voltage will be too low 3. The PFC module fault 1. The power supply voltage too high. 2. The capacitor fault 3. The PFC module fault to ensure no short circuit 3. Replace the frequency conversion module 4. Replace the compressor 1 Ensure that the ring temperature, water temperature, water flow, etc. are within the operating range of the unit;

2. Replace the driver board with the correct program 3. Ensure that the high and low pressure difference starts normally of 1. Check whether the U, V, the and W wires compressor are missing or in poor contact 2. Update the driver 3. Ensure that the high and low pressure difference starts normally that the power 1. Ensure supply is stable 2. Check the capacitor after it is powered off 3. Replace faulty frequency conversion module the that the power 1. Ensure supply voltage is normal 2. Replace the capacitor faulty 3. Replace frequency conversion module the 64 Radiator over 1. The fan on the host is faulty 1. Check and replace the fan 18 temperature 2. The air duct is blocked 2. Ensure proper ventilation 128 Radiator error temperature 257 communication failure 264 AC Input low voltage 1. The heat sink sensor is short-circuited or open 2. Heat sink fouling 3. The ambient temperature too high the 1. The connector of cable communication between the main board and the driver board is in poor contact or falls off 2. Internal components of the heat pump damaged 3. The output voltage of the power supply board in the module abnormal or no output 1. The input voltage too low 2. The current transformer damaged during transportation 288 IPM too high temperature 1. The fan is faulty or the air duct blocked 2. The ring temperature rises too fast, resulting in over-

temperature drop too late to react 3. The power supply voltage and current too high or too low frequency the 1. Replace conversion module 2. Remove dust and scale from the heat sink the Lower 3. temperature ambient 1. Reconnect and ensure stability 2. Replace components 3. Replace the power module internal the the input 1. Ensure that voltage is normal 2. Ensure that the current transformer works properly Reduce 1. Replace the fan 2. Ensure that the air duct unblocked 3. temperature 4. Ensure the power that supply voltage and current are normal ring the 320 Compressor peak current too high 1. Compressor load is too large;

2. The driver board is faulty 3. The damaged compressor is 1 Ensure that the ring temperature, water temperature, water flow, etc. are within the operating range of the unit;

2. Replace the compressor driver plate. 3. Replace the compressor 6. Wifi Connection and Operation 6.1. APP Download 6.1.1. Go to Google Play Store or Apple App Store 6.1.2. Search for Smart Life app, and download. The app icons in the app stores should look like below 19 6.1.3. Sign Up & Register to create account. 6.2. Pairing the Clim8zone II to Mobile phone 6.2.1. On the Clim8zone II:

Make sure water pump is circulating water through the Clim8zone II. Power up the Clim8zone II. The Clim8zone II will automatically go to paring mode for 10 minutes. Please pair the Clim8zone with you mobile device within this 10 minutes time frame. While in paring mode, the word nEt will be flashing on the front panel and stay flashing until paring is done. 6.2.2. On the Mobile device:

Turn on Wi-Fi and Bluetooth. Connect your mobile phone to your home 2.4GHz Wi-Fi connection. NOTE: The Clim8zone II works only with 2.4GHz connection and will NOT work with 5GHz connection. When your mobile device is connected to a 5GHz network, the app will detect and prompt a message asking you to change to 2.4GHz Wi-Fi. Please do so before proceeding forward. NOTE: It is common that your router may have both 2.4G & 5GHz connections, choose 2.4GHz instead. 6.2.3. Paring Open the Smart Life app Login to enter the main interface. Click "" in the upper right corner and select Add Device. 20 The interface will show Discovering devices. Click Add to enter Add Device interface.

(Note: I can also choose to add manually, by clicking on Large Home Appliances, then choose Water Heater (Wi-Fi) Select the same 2.4GHz Wifi network with your mobile device and enter password. Click Next. The interface will show 1 device is being added. Be patient as it will take some time for the device to be added. When the device is added successfully, the interface will show 1 device(s) added successfully. Click Done to enter the app Homepage. 21

(NOTE: it may take several times to pair depending on the strength of your Wi-Fi signal. Retry as needed) 6.3. App operation 6.3.1. Interface Introduction After the device is successfully added, click Pool Heat Pump (your app may show different name) in All Devices in the main interface of Smart Life app to enter the Pool Heat Pump operation page. 22 6.3.2. Icons o Change device name o Select device installation location o Check network status o Add shared users o Create device group o View device information Return to previous page Turn the Clim8zone II on ON/OFF, Set Heating or Cooling mode 23 View device status data o Set Heating / Cooling temperatures o Set timers turn device ON/OFF 6.3.3. Sharing device:

The Share Device feature in the Smart Life app allows you to share access to your heat pump with other Smart Life app users. This can be useful if you want to give family members access to control the heat pump, or if you want to give access to a technician who needs to troubleshoot the heat pump remotely. To use Share Device feature, follow the following steps:

o Click on Share Device o Enter the email address or Smart Life username of the person you want to share. o Choose the level of access you want to grant to the person. You can choose between Device Control

(control heat pump operation only) and Device Management (control heat pump, add/remove users and change setting). Click Confirm. o The person you have invited will receive an email or notification in the Smart Life app with instructions on how to accept the invitation and gain access to the heat pump. They will need to have their own Smart Life account to accept the invitation. 6.3.4. Manual pairing mode If you cannot connect properly or change the phone connection in automatic pairing mode, you need to enter the pairing mode manually:

24 Press "

" and "

" for about 5 seconds at the same time, after hear a buzzer to enter the pairing mode, and then repeat the above connection operations. 7. Maintenance Maintaining your spa heat pump is crucial to ensure its optimal performance and longevity. Here are some essential maintenance instructions for your spa heat pump:

1. Regular cleaning: Keep your spa heat pump clean by removing any debris, leaves, or dirt that may have accumulated around it. Use a soft-bristle brush to clean the outer surfaces of the heat pump. 2. Check the water supply system regularly to avoid the air trapped in the system and occurrence of low water flow, because it would reduce the performance and reliability of heat pump. 3. Remove all water from the heat pump if it will not be used for a long period of time (especially during the winter). 4. After the unit has been properly winterized, it is recommended to cover the heat pump with a special winter cover. 5. After a long winter shutdown, before starting to run the heat pump again, make sure the spa is filled with fresh and clean water and all valves to the heat pump are open. 6. When the unit is running, it is normal that there is some water discharged under the unit all the time. 7. Schedule professional maintenance: Schedule regular maintenance with a licensed professional to ensure that your spa heat pump is in good working condition. A professional technician can identify and fix any issues before they turn into bigger problems. Following these maintenance instructions can help keep your spa heat pump running smoothly and efficiently, ensuring that you enjoy a relaxing and comfortable spa experience. 25

| fey aT cae A \CLIM8Z~ NE SHEA PARTNUMBER: 787 Caai-70 S2OVACIBOHZ pKa 9 $0 FAN MOTOR AMPERAGE 6 a 2 NNPERAGE: $5A SOKED ROTOR AMPERAGE 2.2K 13h ABA 4.064. 08 POWER INPUT: 0.80.11 1.590 al ant TGP Tm /h RAIOA (0.3549 CAUTION: READ THE INSTRUCTION MANUAL ATTENTION: LIRE LA NOTICE TECHNIQUE vwanninc: WATER TEMPERATURE ILEXCESS OF 28 c SABE INR (SUR HEALTH TEMPERATURES DEILEAY UEP PREBENTER CLIM8Z@NE 1 SHEA?

PART NUMBER: 73007 AGENCY MODEL: C8ZII-120V RATED VOLTAGE/FREQUENCY: 120VACI60Hz IP RATING: IPX4 TOTAL AMPERAGE: 5.0A FAN MOTOR AMPERAGE: 0.5A COMPRESSOR AMPERAGE: 8.5A COMPRESSOR LOCKED ROTOR AMPERAGE: 48.8A MINIMUM CIRCUIT AMPACITY: 13A MAXIMUM FUSE: 15A RATED HEATING CAPACITY: 4,0-4.0kW RATED HEATING POWER INPUT: 0.8-0.4 1kW MAX. POWER INPUT: 1.49kW MAXIMUM INLET WATER TEMP: 40C RECOMMENDEDWATER FLOW: _7.6GPM/1.7m3/h REFRIGERANT/PROPERINPUT: _ R410A/ 0.35kg DESIGN PRESSURE (LOW SIDE): 305 PSIG DESIGN PRESSURE (HIGH SIDE): 610 PSIG TESTED BY STANDARDS et UL 1996, UL1663, & CSA C222 No.236.16 SGS a

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Applicant Declaration QSF27-14-04 Rev 1.0 Rev. Feb 6, 2023 Page 1 of 1 Original Issue: Jan. 4, 2021 SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name Balboa Water Group, LLC Address 3030 Airway Ave. Suite B, Costa Mesa, California, United States, 92626 Grantee Code 2ATMV FCC ID 2ATMVC8ZII Authorized Contact Name Hoang Bui Contact Email hoang.bui@balboawater.com Contact Phone 7149556202 I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare; a) in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. b) in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for: (1) labeling the equipment with the exact FCC ID as specified in this application, (2) compliance statement labeling pursuant to the applicable rules, (3) compliance of the equipment with the applicable technical rules, c) if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCCs technical requirements. d) in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. e) in accordance with ISO 17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements. (1) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. (2) the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. (3) the Applicant shall, upon request by SGS, at the Applicants expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f) neither the Applicant nor any party to the application is subject to a denial of Federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a party for these purposes. g) the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc.(TCB) terms and conditions. Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Link to the Covered List: Covered List Balboa Water Group, LLC (the applicant) certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Balboa Water Group, LLC (the applicant) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered list, established pursuant to 1.50002, as an entity producing covered equipment. Applicant Signature: Date: 2023/8/17 Print Name: Hoang Bui Title: Compliance Coordinator *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database

Balboa Water Group, LLC Authority letter FCC Date: 2023/8/17 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: FCC ID: 2ATMVC8ZII To whom it may concern: We, the undersigned, hereby authorize SGS-CSTC Standards Technical Services Co., Ltd. (SGS) Guangzhou branch and Bonnie Liao in SGS-CSTC Standards Technical Services Co., Ltd. (SGS) Guangzhou branch to act on our behalf in all manners relating to application for equipment authorization with respect to the FCC ID above, including signing of all documents relating to these matters. Any and all acts carried out by the agent on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). Where our agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by SGS North America, Inc., still resides with applicant company FCC. This authorization is valid until further written notice from the applicant. Name (Printed): Hoang Bui Title: Compliance Coordinator Signature: On behalf of Company: Balboa Water Group, LLC

Balboa Water Group, LLC Confidential letter FCC To: SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia United States From: Balboa Water Group, LLC 3030 Airway Ave. Suite B Costa Mesa, California, 92626, United States Regarding: Confidentiality Request regarding application for FCC ID: 2ATMVC8ZII LONG TERM CONFIDENTIALITY Pursuant to 47 CFR Section 0.459 and 0.457 of the commissions rules, the applicant hereby request confidential treatment of the documents listed below, associated with the certification application referenced above. Schematic(s) Block Diagrams Operational Descriptions The documents above contain proprietary information not released to the public. Public disclosure of this information may prove harmful to the business of the applicant. Sincerely, Name (Printed): Hoang Bui Title: Compliance Coordinator Signature: On behalf of Company: Balboa Water Group, LLC

UNITED STATES DESIGNATED AGENT LETTER Date: 2023/8/17 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Applicant U.S. designated agent Company Name: Balboa Water Group, LLC Company Name: Balboa Water Group, LLC Grantee Code: 2ATMV FRN: 0028561926 Contact Name: Hoang Bui Contact Name: Hoang Bui Address: 3030 Airway Ave. Suite B Address: 3030 Airway Ave. Suite B City/Province/Zip: Costa Mesa, California, 92626 City/Province/Zip: Costa Mesa, California, 92626 Telephone: 7149556202 Telephone: 7149556202 Fax: 7143840385 Fax: 7143840385 Email: hoang.bui@balboawater.com Email: hoang.bui@balboawater.com Applicable Equipment: FCC ID: 2ATMVC8ZII ATTN: Director of Certification: We, Balboa Water Group, LLC and Balboa Water Group, LLC understand and acknowledge the applicants consent and the designated agents obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and e-mail of the designated agent listed above. We, Balboa Water Group, LLC and Balboa Water Group, LLC acknowledge the applicants acceptance of its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Applicant U.S. designated agent Name: Hoang Bui Name (Printed): Hoang Bui Title: Compliance Coordinator Title: Compliance Coordinator Signature: Signature: