OPERATION MANUAL and System air conditioner RXYSQ4P8V1B RXYSQ5P8V1B RXYSQ6P8V1B RXYSQ4P8Y1B RXYSQ5P8Y1B RXYSQ6P8Y1B RXYSQ4PA7V1B RXYSQ5PA7V1B RXYSQ6PA7V1B RXYSQ4PA7Y1B RXYSQ5PA7Y1B RXYSQ6PA7Y1B RXYQ5P9W1B RXYQ8P9W1B RXYQ10P9W1B RXYQ12P9W1B RXYQ14P9W1B RXYQ16P9W1B RXYQ18P9W1B RXYHQ12P9W1B RXHQ8P9W1B RXHQ10P9W1B RXHQ12P9W1B RXHQ14P9W1B RXHQ16P9W1B RXHQ18P9W1B RXYRQ8P7W1B RXYRQ10P7W1B RXYRQ12P7W1B RXYRQ14P7W1B RXYRQ16P7W1B RXYRQ18P7W1B REYQ10P8Y1B REYQ14P8Y1B REYQ16P8Y1B REYQ8P9Y1B REYQ12P9Y1B REMQ10P8Y1B REM
1 RXHQ RXYRQ RXYQ RXYHQ RXYSQ 1 5 5 5 5 4 REYQ REYHQ REYQ 5 1 4 6 1 4 4 6 1 4 6 5 7 2 5 2 5 3 4 5 3 4 4 3 1 4.1 3 2 1 1 2 2+3 1 4.1 1 2 4.2 2 1 3 2+3 5 1 2+4 7 1 4 2 3 1 4.2 3 UNIT NO. 5 4.3 6 3+5 1 2+3 1 2 1 4 6 7 9 8 A RXYSQ RXYRQ RXHQ RXYQ RXYHQ 4.
REMQ8~16P REMHQ12P REYQ8~16P RXYSQ4~6P RXYHQ12P RXYRQ8~18P RXHQ8~18P RXYQ5~18P VRVIII and VRVIII-S system air conditioner CONTENTS 1. 2. 3. 4. 5. 6. 7. Page Safety cautions .......................................................................... 1 Important information regarding the refrigerant used ................ 2 What to do before operation ...................................................... 3 Remote controller.......................................................................
Cautions ■ Do not use the air conditioner for other purposes. In order to avoid any quality deterioration, do not use the unit for cooling precision instruments, food, plants, animals or works of art. ■ In order to avoid injury, do not remove the fan guard of the outdoor unit. ■ To avoid oxygen deficiency, ventilate the room sufficiently if equipment with burner is used together with the air conditioner. ■ After a long use, check the unit stand and fitting for damage.
3. WHAT TO DO BEFORE OPERATION This operation manual is for the following systems with standard control. Before initiating operation, contact your dealer for the operation that corresponds to your system type and mark. If your installation has a customized control system, ask your dealer for the operation that corresponds to your system. 6. OPERATION Operation range Use the system in the following temperature and humidity ranges for safe and effective operation.
For systems without cool/heat changeover remote control switch (See figure 3) 1 Press the operation mode selector button several times and select the operation mode of your choice. Explanation of heating operation It may take longer to reach the set temperature for general heating operation than for cooling operation. The following operation is performed in order to prevent the heating capacity from dropping or cold air from blowing.
For systems with cool/heat changeover remote control switch (See figure 6) 1 Select cooling operation mode with the cool/heat changeover remote control switch. 2 Press the operation mode selector button several times and select (program dry operation). 3 7.4.
. ENERGY SAVING AND OPTIMUM OPERATION 9.2. ■ Let the indoor units run in fan only operation for about half a day in order to dry the interior of the units. Refer to "7.1. Cooling, heating, fan only, and automatic operation" on page 3 for details on fan only operation. ■ Turn off the power. The remote controller displays disappear. ■ Clean air filters and casings of indoor units.
". This is the case immediately after the main power supply switch is turned on and means that the remote controller is in normal condition. This continues for one minute. Symptom 6: White mist comes out of a unit Symptom 12: The display shows " Symptom 6.1: Indoor unit ■ ■ ■ When humidity is high during cooling operation If the interior of an indoor unit is extremely contaminated, the temperature distribution inside a room becomes uneven. It is necessary to clean the interior of the indoor unit.
2 If the system goes into fan only operation, but as soon as it goes into heating or cooling operation, the system stops ■ Check if air inlet or outlet of outdoor or indoor unit is not blocked by obstacles. Remove any obstacle and make it well-ventilated. ■ Check if the remote controller display shows " " (time to clean the air filter). (Refer to "Maintenance" in the indoor unit manual.
12.2. Shortening of "maintenance cycle" and "replacement cycle" needs to be considered in following situations ■ The unit is used in locations where: 1. heat and humidity fluctuate out of the ordinary 2. power fluctuation is high (voltage, frequency, wave distortion, etc.) (The unit cannot be used if power fluctuation is outside the allowable range.) 3. bumps and vibrations are frequent 4. dust, salt, harmful gas or oil mist such as sulfurous acid and hydrogen sulfide may be present in the air 5.
4PW67777-1 01.
