Be very careful when repairing or inspecting the circuit without turning off the power. Be sure to clean the pipes and make sure the inside of the pipes is clean. Vacuum pump oil may flow back into refrigerant cycle and this may cause deterioration of refrigerant oil, etc.
SAFETY PRECAUTION
Refer to the flow chart below to determine if existing tubing can be used and if a filter drier is necessary. If the diameter of the existing pipes is different from the specified diameter, refer to the technical data materials to confirm if the pipes can be used. Although the work of the refrigerant piping for R410A is the same as that of R22, exclusive tools are needed to avoid mixing different types of refrigerant.
Therefore, to increase hermeticity and strength, the flame cut dimension of the copper tube for R410A is specified separately from the dimensions for other refrigerants, as shown below. The flare nut B dimension for R410A has also been partially changed to increase strength as shown below. Exclusive tool for R410A Exclusive tool for R410A Tool for HFC refrigerant Exclusive tool for R410A Exclusive tool for R410A ester oil and alkylbenzene oil (minimum quantity).
Tool exclusively for R410A Tool exclusively for R410A Tools for other refrigerants can be used if equipped with backflow check adapter Tools for other refrigerants can be used by adjusting the blast dimension Tools for other refrigerants can be used Tools for other refrigerants can be used for other refrigerants You can use tools for other refrigerants You can use tools for other refrigerants You can use tools for other refrigerants. Use the new tool as a tool exclusively for R410A.) : Tools for other refrigerants can be used under certain conditions.
FEATURES
SPECIFICATIONS
DATA
OUTLINES AND DIMENSIONS
Please fix the unit well with 4 foundation (M10) bolts. Bolts and washers must be purchased locally.) Pipe and wire connections can be made from 4 directions: FRONT, Right, Rear and Below.
WIRING DIAGRAM
Always use a current leakage circuit breaker compatible with higher harmonics as this device is equipped with an inverter. However, between S3 and S1 these connections are NOT electrically isolated by the transformer or other device.
WIRING SPECIFICATIONS
If the optional indoor power supply terminal kit is used, change the indoor unit electric box wiring by referring to the figure in the right and the DIP switch settings of the outdoor unit control board. Label affixed near each wiring diagram for the indoor and outdoor units Outdoor unit DIP switch settings (when only separate indoor/outdoor unit power supply is used). Power supply cables and indoor unit/outdoor unit connecting cables must not be lighter than polychloroprene sheathed flexible cable.
Set the lowest number in the group for the outdoor unit whose chiller address is "00" as its M-NET address. In group B, the M-NET address of the outdoor unit whose chiller address is "00" is not set to the group minimum. In A control models, the M-NET address and chiller address should be set only for the outdoor unit.
To build a central control system, the setting of M-NET address should be performed only on the outdoor unit. In the system connecting multiple outdoor units, the terminal (A, B, S) on M-NET terminal block must be wired individually to the other outdoor unit's.
REFRIGERANT SYSTEM DIAGRAM
However, this is not a problem with the product because the non-return valve itself makes the sound because the pressure difference in the refrigerant circuit is small. If “CENTRALLY CONTROLLED” is displayed, refrigerant collection (pumping) cannot be completed normally. Press the exhaust SWP switch (key type) on the control panel of the outdoor unit.
Even if the unit is stopped and the SWP deflate switch is pressed less than 3 minutes after the compressor has stopped, refrigerant collection cannot be performed. Since the unit will automatically stop after approximately 3 minutes when refrigerant collection is completed (LED1 off, LED2 on), close the gas ball valve quickly. If refrigerant collection is completed normally (LED1 off, LED2 on), the unit will remain off until the power supply is turned off.
In this case, use refrigerant collection equipment to collect all refrigerant in the system. 7 Turn off the power (circuit breaker), remove the gauge manifold, and then disconnect the refrigerant lines.
TROUBLESHOOTING
Point the remote control at the sensor on the indoor unit and press the HOUR button. Point the remote control at the sensor on the indoor unit and press the ON/OFF button. 2 Contact failure of the transmission wire of the remote control or indoor unit 3 Disconnection of the transmission connection.
FUNCTION SETTING
2 Set the indoor unit refrigerant addresses and unit numbers using the F1 to F4 buttons, then press the button to confirm the current setting. 5 When the settings are completed, press the button to send the setting data from the remote controller to the indoor units. Note: When you switch to the function selection mode on the wireless remote controller control area, the unit will automatically exit the function selection mode if no input is made for 10 minutes or more.
Function selection using wireless remote control is only available for cooling system with wireless function. Aim the wireless remote control at the indoor unit's receiver and press the button. Aim the wireless remote control at the indoor unit's sensor and press the button.
Note: Do not use the wireless remote control for 30 seconds after completing the function setting. Start this operation when the remote control screen is off.) [CHECK] lights up and flashes. Point the wireless remote control towards the receiver of the indoor unit and press the button.
It flashes while the remote control is starting up or when there is an error. Manual vane angle Use to set the vane angle for each vane to a fixed position. Function Setting Make the settings for the indoor unit functions via the remote controller as needed.
Remote control check When the remote control does not work properly, use the remote control check function to solve the problem.
MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER
Compressor-Operating current (rms) Compressor-Accumulated operating time Compressor-Number of operating hours Discharge temperature (TH4). Outdoor unit - Liquid pipe 2 temperature Outdoor unit - 2-phase pipe temperature (TH6) Outdoor unit - Outdoor air temperature (TH7) Outdoor unit - Heatsink temperature (TH8) Discharge superheat (SHd). Indoor Unit - Liquid Pipe Temperature (Unit No. 1) Indoor Unit - Liquid Pipe Temperature (Unit No. 2) Indoor Unit - Liquid Pipe Temperature (Unit No. 3) Indoor Unit - Liquid Pipe Temperature (Unit No. 4) Indoor Unit -Cond./Eva.
Indoor unit-Control status Outdoor unit-Control status Compressor-Frequency control status Outdoor unit-Fan control status Actuator output status Error content (U9). Display of replacement/wash operation execution Outdoor unit - Microprocessor version information Outdoor unit - Microprocessor version information (sub no.). Compressor-operating current during failure Compressor-total operating time during failure Compressor-number of operating hours during failure Discharge temperature during failure.
Outdoor unit - Liquid pipe 1 temperature (TH3) at fault time Outdoor unit - Liquid pipe 2 temperature at fault time Outdoor unit - 2 phase pipe temperature (TH6) at fault time Outdoor unit - Temperature of outdoor air (TH7) at time of error Outdoor unit-Coolant temperature (TH8) at time of error Superheat discharge (SHd) at time of error. Internal - Liquid pipe temperature at time of error Internal - Cond/Eva. pipe temperature at the time of the fault Indoors at the time of the fault. Indoor unit-Capacity setting information Indoor unit information-SW3. indoor control panel setup) Indoor unit information-SW5.
Display Discharge temperature Condensation temperature Freezer Cooler temperature prevention overheating prevention protection control overheating prevention 0. Maintenance data, such as the indoor/outdoor unit's heat exchanger temperature and compressor operation current can be displayed with "Smooth maintenance".
EASY MAINTENANCE FUNCTION
Depending on the combination with the outdoor unit, this may not be supported by some models. The compressor accumulated operating time (COMP. run) is a unit of 10 hours, and the compressor number of operating times (COMP. 4 Refrigerant/heat exchanger temperature COOL: HEAT: 5 Refrigerant/discharge temperature COOL: HEAT: 6 Air/outside air temperature COOL: HEAT : (Air/discharge temperature) COOL : HEAT.
Air/intake air temperature COOL : HEAT : (air/discharge temperature) COOL : HEAT : 8. Coolant/heat exchanger temperature COOL : HEAT. The filter lifetime is the time that has elapsed since the filter was reset. 7 Room intake air temperature) – (8 Room heat exchanger temperature) Is "D000" continuously displayed on the remote control.
If the air conditioner operates in a temperature range other than the above, but the operation does not stabilize after 30 minutes or more, perform an inspection. In heating mode, the operating state may change due to the formation of frost on the external heat exchanger. 7 Indoor intake air temperature)— (8 Indoor heat exchanger temperature) (8 Indoor heat exchanger temperature) — (7 Indoor intake air temperature) [5 Discharge temperature] – [4 Outdoor heat exchanger temperature).
Due to external and internal temperature, it can be rated as "Filter Check" even though it is not clogged.
DISASSEMBLY PROCEDURE
Removal of the thermistor
