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 Operating

Instructions

SETTING SWITCH OFF TIMER 

With the air conditioner operating in any function mode, press the TIMER button. The TIMER OFF light will come on. Then set the 
desired time delay OFF hours by pressing the UP and DOWN buttons. The time increments are at 0.5 hour to up to 10 hours, followed by 
1 hour increment up to 24 hours. When the delay time set has elapsed, the air conditioner switches off. To cancel the delayed switch off 
function, turn off the air conditioner or adjust the time set-ting to 0.0. 

SETTING DELAYED SWITCH ON TIMER 

With the air conditioner is off, press the TIMER button. The TIMER ON light will come on. Then set the desired time delay ON hours by 
pressing the UP and DOW N buttons. The time increments are at 0.5 hour to up to 10 hours, fol-lowed by 1 hour increment up to 24 
hours. When the delay time set has elapsed, the air conditioner switches on.  To cancel the delayed switch on function, turn on the air 
conditioner or adjust the time setting to 0.0. 

SLEEP MODE 

In this mode, the air conditioner gradually increases the set temperature in cooling mode, decreases the noise level and conserves 
energy. In Economy and cooling mode, the set temperature is increased by 1°C/ 2°F in the first 30 minutes. The temperature will then 
increase by another 1°C/ 2°F after an additional 30 minutes. This new tempera-ture will remain the same for 7 hours. To activate this 
function mode, press the SLEEP button until the SLEEP indicator light comes on. 

AUTO RESTART 

In the event of a power outage, the air conditioner restarts at the previously set function mode and settings when power is restored.  

CONTROLLING THE AIR FLOW DIRECTION 

The louvers can be controlled to Auto-Swing or in a fixed direction. To control the air flow direction by Auto-Swing, press the SWING 
button.  To set the louvers in a fixed angle or direction, press SWING button while on Auto-Swing mode when desired angle is chosen.  

NOISE LEVEL 

Portable air conditioners may make sounds that are not familiar to you. The sounds listed below are normal. Noise reflecting off hard 
surfaces such as a floor or wall can make the sounds seem louder than they actually are. 

The compressor may make a pulsating or high-pitched sound

Water running from the evaporator to the water tank may make a splashing sound

Refrigerant flowing may make a gurgling sound

Fan sound may come from front and back air vents

COMPRESSOR LOCK OUT 

This portable air conditioner is optimized to operate in an ambient temperature of 64°F – 90°F. The compressor cir-cuit has an automatic 
3 minute time delayed start if the unit is turned off and on quickly. This prevents over-heating of the compressor and possible circuit 
breaker tripping.  

SHORTCUT FUNCTION 

Push this button when remote controller is on, the system will automatically revert back to the previous settings in-cluding operating 
mode, setting temperature, fan speed level and sleep feature (if activated). If shortcut button is pushed for more than 2 seconds, the 
system will automatically store the current operation settings including operat-ing mode, setting temperature, fan speed level and sleep 
feature (if activated). 

Summary of Contents for ARC-148MS

Page 1: ...IONER Congratulations on your new Whynter product To ensure proper operation please read this Instruction Manual carefully before using this product Keep this manual in a safe place for future referen...

Page 2: ...cautions Air Filter Cleaning Unit Cleaning Store the unit when not in use Preparation Design Notice Energy Rating Information Ambient Temperature Range For Unit Operating Exhaust Hose Installation Cho...

Page 3: ...the nameplate located on unit have a qualified electrician install the proper receptacle Install the unit on a flat sturdy surface Failure to do so could result in damage or excessive noise and vibra...

Page 4: ...e the appliance must be disconnected from the supply mains Do not remove any fixed covers Never use this appliance if it is not working properly or if it has been dropped or damaged Do not run cord un...

Page 5: ...uction The appliance shall be stored so as to prevent mechanical damage from occurring A warning that the appliance shall be stored in a well ventilated area where the room size corresponds to the roo...

Page 6: ...rk on the system 2 Work procedure Work shall be undertaken under a controlled procedure so as to minimize the risk of a flammable gas or vapor being present while the work is being performed 3 General...

Page 7: ...th the room size within which the refrigerant containing parts are installed The ventilation machinery and outlets are operating adequately and are not obstructed If an indirect refrigerating circuit...

Page 8: ...the copper pipe work If a leak is suspected all naked flames shall be removed extinguished If a leakage of refrigerant is found which requires brazing all of the refrigerant shall be recovered from th...

Page 9: ...that all refrigerants are recovered safely Prior to the task being carried out an oil and refrigerant sample shall be taken in case analysis is required prior to re use of reclaimed refrigerant It is...

Page 10: ...re that they have been evacuated to an acceptable level to make certain that flammable refrigerant does not remain within the lubricant The evacuation process shall be carried out prior to returning t...

Page 11: ...ll to ensure proper air conditioning The horizontal louver blade should be at least 20 away from obstacles DO NOT cover the Intakes Outlets or Remote Signal Receptor of the unit as this could cause da...

Page 12: ...on older units Federal regulations require manufacturers to calculate cooling capacity based on a specific test procedure which was changed just this year Models manufactured before 2017 were tested...

Page 13: ...ION QUANTITY 1 piece 1 piece 1 piece Window Slider Kit 1 set Clear plastic plug plug is in the upper corner of the plastic bag that holds the user manual 1 piece Foam seal A Adhesive Foam seal B Adhes...

Page 14: ...emperature 1 C 2 F increments or timer hours 0 24 hours This unit is capable of displaying set temperature in Fahrenheit or in Celsius To convert from one to the other press and hold the Up and Down b...

Page 15: ...ssory sold separately under the drain area of the lower drain port Remove the bottom drain plug and let the water drain Replace the drain plug and plug in to resume operation Continuous drainage Fig 1...

Page 16: ...to the necessary length keeping it as short and straight as possible WINDOW KIT INSTALLATION The window kit has been designed to fit most standard vertical and horizontal windows However it may be ne...

Page 17: ...type Security bracket Screws Foam seal C non adhesive type Foam seal A adhesive type Foam seal B adhesive type Security bracket Screws Foam seal C non adhesive type EXHAUST AND INTAKE HOSE INSTALLATI...

Page 18: ...s function mode press the MODE button until the DRY indicator light is displayed Please note that when switching function mode there will be an approxi mately 3 minute transition time In dehumidifying...

Page 19: ...comes on AUTO RESTART In the event of a power outage the air conditioner restarts at the previously set function mode and settings when power is restored CONTROLLING THE AIR FLOW DIRECTION The louvers...

Page 20: ...ays when remote sends signal to unit 3 ON OFF Display Displays when the unit is turned on and disappears when it is turned off 4 Timer On Indicator Displays when TIMER ON is set 5 Timer Off Indicator...

Page 21: ...e washable pre This unit has three air filters the washable pre filter activated carbon filter and lower filter Switch off the air conditioner and remove the washable pre filter and activated carbon f...

Page 22: ...yet because of its time delay The set temperature is too high The internal water reservoir is full and P1 appears on display This unit is designed to work in ambient temperatures of 63 F to 90 F Pres...

Page 23: ...y The unit is not level The surface underneath the unit is uneven Low power voltage Make sure the unit is on hard level and stable surface Move the unit to a location with a level and hard floor Make...

Page 24: ...Use in commercial or industrial applications Damage accidental or otherwise to the product while in the possession of a consumernot caused by a defect in material or workmanship Damage caused by cons...

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