ENVTRoair E IIIII- PTAC Series Packaged Terminal Air Conditioner/Heat Pump Installation, Operation & Maintenance Manual l � ECR internatio11�J A Family of Heating & Cooling Brands. ENVIROair ECR International, Inc. 2201 Dwyer Avenue• Utica, New York 13501 Phone: 800.325.5279• Web: enviromaster.com PN 615000151 REV B, [09/2015] CONTENTS 1. SAFETY PRECAUTIONS..................................................................................2 2. IMPORTANT SAFETY INSTRUCTIONS ...........................................................4 3. AIR CONDITIONER FEATURES......................................................................5 4. CONTROL PANEL OPERATION.......................................................................6 5. INSTALLATION ............................................................................................7 6. CARE AND CLEANING...................................................................................9 7. TROUBLESHOOTING....................................................................................10 Read This Manual Inside you will find many helpful hints on how to use and maintain your air conditioner properly. Just a little preventive care on your part can save you a great deal of time and money over the life of your air conditioner. You’ll find many answers to common problems in the chart of troubleshooting tips. If you review our chart of Troubleshooting Tips first, you may not need to call for service at all. ! CAUTION • If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarily qualified persons in order to avoid a hazard. • the appliance shall be installed in accordance with national wiring regulations. • Do not operate your air conditioner in a wet room such as a bathroom or lundry room. • The appliance with electric heater shall have at least 1 meter space to the combustible materials. • Contact the authorized service technician for repair or maintenance of this unit. • Contact the authorized installer for installation of this unit. 1 SAFETY PRECAUTIONS To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring of instructions may cause harm or damage. The seriousness is classified by the following indications. ! WARNING This symbol indicates the possibility of death or serious injury. ! CAUTION This symbol indicates the possibility of injury or damage to property. Meanings of symbols used in this manual are as shown below. Never do this. ! Always do this. ! WARNING ! ! ! ! ! Do not operate or stop the unit by inserting or pulling out the power plug. Do not damage or use an unspecified power cord. Otherwise, it may cause electric shock or fire due to excess heat generation. It may cause electric shock or fire due to heat generation. Do not modify power cord length or share the outlet with other appliances. Do not operate with wet hands or in damp environment. It may cause electric shock or fire. If the power cord is damaged, it must be replaced by the manufacturer or an authorized service centre or a similarly qualified person in order to avoid a hazard. It may cause electric shock or fire due to heat generation. It may cause electric shock. Plug in power cord properly. Always ensure effective grounding. Do not allow water to run into electric parts. ! Incorrect grounding may cause electric shock. It may cause machine failure or electric shock. Incorrect installation may cause fire and electric shock. Unplug the unit if strange sounds, smell, or smoke comes from it. It may cause fire and electric shock. Do not use the power cord close to heating appliances. It may cause fire and electric shock. Do not use the socket if it is loose or damaged. It may cause fire and electric shock. Do not use the power cord near flammable gas or combustibles, such as gasoline, benzene, thinner, etc. It may cause an explosion or fire. 2 Always install circuit breaker and a dedicated power circuit. Do not open the unit during operation. It may cause electric shock. Do not disassemble or modify unit. It may cause failure and electric shock. ! CAUTION When the air filter is to be removed, do not touch the metal parts of the unit. Do not clean the air conditioner with water. Do notoperate unit where pet or house plant will be exposed to direct air flow. When the unit is to be cleaned, switch off, and turn off the circuit breaker. Do not clean unit when power is on as it may cause fire and electric shock, it may cause an injury. ! ! Operation with windows opened may cause wetting of indoor and soaking of household furniture. Failure to follow these instructions may cause electric shock or damage. Do not place obstacles around air-inlets or inside of air-outlet. Failure to follow these instructions may cause failure of appliance or personal injury. Do not use strong detergent such as wax or thinner but use a soft cloth. Appearance may be deteriorated due to change of product color or scratching of its surface. ! ! Do not use for special purposes. Do not use this air conditioner to preserve precision devices, and art objects. It may cause deterioration of quality, etc. This could injure the pet or plant. Stop operation and close the window in storm or hurricane. ! Do not remove plug from wall socket by pulling on plug. Ensure the appliance sleeve and unit are not damged due to prolonged exposure to weather. If sleeve is damaged, unit may cause property damage or personal injury. Ventilate the room well when used together with a stove, etc. An oxygen shortage may occur. Water may enter the unit and degrade the insulation. It may cause an electric shock. It may cause an injury. ! ! ! Turn off main power switch when not using the unit for a long time. It may cause failure of product or fire. ! Always insert the filters securely. Clean filter once every two weeks. Operation without filters may cause appliance failure. Do not place heavy object on the power cord and ensure that the cord is not compressed. Do not drink water drained from air conditioner. Failure to follow these instructions may cause fire or electric shock. Water from unit contains contaminants and could make you sick. Use caution when unpacking and installing. Sharp edges could cause injury. ! Clean the evaporator once every three months by professional installer. Otherwise it may cause failure of electric heating feature. 3 If water enters the unit, turn the unit off at the power outlet and switch off the circuit breaker. Isolate supply by taking the power-plug out and contact a qualified service technician. IMPORTANT SAFETY INSTRUCTIONS NOTE The power supply cord with this air conditioner contains a current detection device designed to reduce the risk of fire. Please refer to the section Operation of Current Device for details. In the event that the power supply cord is damaged, it cannot be repaired-it must be replaced with a cord from the Product Manufacturer. Do not, under any circumstances, cut, remove, or bypass the grounding prong. Power supply cord with 3-prong grounding plug and current detection device WARNING For your safety Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. Avoid fire hazard or electric shock. Do not use an extension cord or an adaptor plug. Do not remove any prong from the power cord. WARNING Electrical Information Be sure the electrical service is adequate for the model you have chosen. This information can be found on the serial plate, which is located on the side of the cabinet and behind the grille. Be sure the air conditioner is properly grounded. To minimize shock and fire hazards, proper grounding is important. The power cord is equipped with a three-prong grounding plug for protection against shock hazards. Your air conditioner must be used in a properly grounded wall receptacle. If the wall receptacle you intend to use is not adequately grounded or protected by a time delay fuse or circuit breaker, have a qualified electrician install the proper receptacle. Ensure the receptacle is accessible after the unit installation. Do not run air conditioner without side protective cover in place. This could result in mechanical damage within the air conditioner. Do not use an extension cord or an adapter plug. NOTE: The shape may be different according to its model: Power Card Power Suppy 230V,15A 230V,20A 230V,30A 4 Operation of Current Device(optional) The power supply cord contains a current device that senses damage to the power cord. To test your power supply cord do the following: 1. Plug in the Air Conditioner. 2. The power supply cord will have TWO buttons on the plug head. Press the TEST button, you will notice a click as the RESET button pops out. 3. Press the RESET button, again you will notice a click as the button engages. 4. The power supply cord is now supplying electricity to the unit. (On some products this it also indicated by a light on the plug head.) NOTES: Do not use this device to turn the unit on or off. Always make sure the RESET button is pushed in for correct operation. The power supply must be replaced if it fails reset when either the TEST button is pushed, or it cannot be reset. A new one can be obtained from the product manufacturer. If power supply cord is damaged, it cannot be repaired. It MUST be replaced by one product obtained from the manufacturer. When 265V units are to be installed,the power supply must be permanent wiring.Permanent wiring may be done through the accessory subbase.An exposed cord connection on 265V units are not permitted. AIR CONDITIONER FEATURES This unit has many featrues.The servicer must be familiar with these features in order to properly service the unit. Compressor Restart Delay This feature extends the overall life of compressor by preventing the short-cycling of the air conditioner. When the compressor restarts,the unit is designed to give a minimum of three minutes to have a time of equalizing the refrigerant pressures for optimizing cycling. Memory The unit has memory. If power is lost,all of the control settings(mode, fan speed, on/off and configuration) are remembered. So when power is restored, the unit will start back up in the mode (and configuration) it was in, when power was lost. Automatic Evaporator Freeze Protection Automatically to keep the evaporator from freezing, the compressor is turned off and indoor fan is turned on when the evaporator temperature is too lower. If evaporator temperature is not too lower this function is off. Automatic Quick Warm-up (for heat pump models only) If the room temperature falls to 4.5°C/8°F below the set point temperature, the reverse cycle heat is shut off and the electric strip heat is turned on for one cycle, until heating is satisfied. LED Indicators and Buttons The touch pad has buttons for MODE,FAN, POWER, SETPOINT UP and SETPOINT DOWN. It also has LEDs that correspond to the mode, fan speed, power and setpoint operation,t o indicate the unit’s status. LEDs for HIGH, MED and LOW indicate the fan speed that is selected. LEDs for FAN,COOL and HEAT indicate what operating mode is active. LED for POWER is the unit ON/OFF status LED.If the unit is in ON mode, the LED will be green.If the unit is OFF,the LED will be off. NOTE: HEAT mode is for Cooling & Heating models only High Temperature Protection In Heating Operation The compressor and(or) electric heater will be switched off to prevent damage in high indoor blow air temperature or error indoor temperature sensor. Unit Configuration °F or °C The unit can display in either °F or °C. 5 CONTROL PANEL OPERATION The control panel keypad will look like the following Fig.1. For some models with REMOTE SIGNAL RECEPTOR, the unit can be controlled by the control panel alone or by the remote. NOTE: Some models do not have REMOTE SIGNAL RECEPTOR. NOTE: If the unit has DIP SWITCHES feature, the temperature range can be set/controlled by the DIP SWITCHES. See “DIP SWITCHES CONFIGURATIONS” on page 8 for details. UP/DOWN BUTTONS (+/-) -Push the UP (or DOWN) button to increase (or decrease) the set temperature of the unit in cooling or heating mode.The temperature can be set by increments of 1°C (1°F).The setting temperature appears in the display. Fig.1 NOTE:Press and hold “+” and “-” buttons together for 3 seconds will alternate the temperature display between “°C” &”°F” scale. FAN (FAN SPEED) - Every time you push this button,the fan speed cycles through the settings as follows:HIGH-MEDLOW-HIGH. POWER - Press the POWER button to turn the unit on or off. When the unit is on,the power indicator light will be green.When the unit is off,the light will go out. DISPLAYS: -Shows the set temperature in °C or °F. While on Fan only mode,it shows the room temperature. Control code (on some models): MODE - Push this button to cycle through the modes from COOLHEAT-FAN-COOL.The indicator light beside the “MODE” option will illuminate, identifying the mode selected. - COOL:The range of set temperature is 17°C/62°F ~30°C/86°F.Cooling begins automatically when the room temperature is above the set point,and stops LC -Pads on the control panel is not available.The unit can be setted by using wire cotroller only. Error codes: AS-Room temperature sensor error; ES-Evaporator temperature sensor error; CS-Condenser temperature sensor error; OS-Outside temperature sensor error; HS-Exhaust temperature sensor error; NOTE:When error occurs,unplug the unit and plug it back in.If error repeats, call for service. Other codes: LO- Room temperature is lower than 0°C/32°F; HI- Room temperature is higher than 37°C/99°F. NOTE: All the illustrations in this manual are for explanation purpose only. Your air conditioner may be slightly different. The actual shape shall prevail. NOTE:This air conditioner is designed to be operated under condition as follows: when the room temperature is 2°C(4°F) below the set point.But the compressor will run 5 minutes at least in COOL mode before stoping. The fan runs in continuous mode. - HEAT:The range of set temperature is 17°C/62°F ~29°C/84°F. For heat pump models,the unit can alternate to run between in reverse cycle heat mode and electric heater mode according to the difference between the setting temperature and the room temperature.The fan motor cycles on and off with the compressor and electric heater. NOTE: The reverse cycle and electric heater cannot be run at the same time. In following cases, it is normal that the reverse cycle does not operate. 1.When the outdoor temperatrue is lower than 4°C/40°F or the room temperature falls to 4.5°C/8°F below the set point temperature. 2.There is a 3-minute minimum compressor run time at any setting to prevent short cycling. The indoor fan motors starts before the compressor and stops after the compressor cycles off. 3.When frost builds up to the evaporator coils, the unit will defrost automatically and the compressor will cycle off. - FAN:Fan operation only without heating and cooling. Cooling Outdoor temp: operation Heating 18-43°C/64-109°F Indoor temp: 17-32°C/62-90°F Outdoor temp: -5-24°C/23-76° F operation Indoor temp: 0-27°C/32-80°F Note: Performance may be reduced outside of these operating temperatures. 6 CONTROL PANEL OPERATION (CONTINUED) THIS UNIT IS CONTROLLED BY WALL MOUNTED THERMOSTAT 7 DIP SWITCHES CONFIGURATIONS (Optional) • REMOVING THE FRONT PANEL t® - Dip switches controls are located behind front panel, through an opening below the control panel.To access.remove front panel.See Fig.2. - Dip switches are accessible without opening the control box.See Fig.3. · - Unit must be powered OFF to effectively change their status. �CD - Pull out at the bottom to release it from the tabs CD Then lift up (ID. • DIP SWITCHES CONFIGURATIONS Fig.2 - See Table 1 and Fig.4 for Dip Switches configurations and functions of each dip switch position. ,���;I ��[fil�_[Q] :g- ,��, ,�H���, en en en en · I en en ai . �g6���0FF) A4A5 Wall thermostat type Heating type :em·perature display type Control type '-. ----------S�tpoint limit 1 '--------------Setpoint limit 2 '--------------Fan CON/CYC for heating Fan CbN/CYC for cooling l l l · Fig.3 Fig.4 Table 1-- DIP SWITCHES CONFIGURATIONS No . UP(ON) DOWN(OFF) S1 Electric Heat Only Electric Heat and Pump Heat S2 Temperature Display in °C S3 Wall Thermostat Enable Temperature Display in °F Control Panel Enable UP*UP:61°F-86°F(16°C-30 °C); S4*S5 UP*DOWN:65°F-78°F(18°C-26°C); DOWN*UP:�3°F-80°F(17°C-27° C); DOWN*DOWN:68°F-75°F(20°C-24°C); S6 Fan Continuous Run for Heating Fan Cycle for Heating S? Fan Continuous Run for Cooling S9 Use some types of wall · T hermostat Remarks . For Heat Pump unit only Fan Cycle for Cooling Use PTAC other Wall Thermostat Two configurations (S4*S5) combine to select set point range. you can consult with the sales agency or manufacturer · for details NOTE: on·heating mode, the setting temperature • Heat and Cool Fan CON/CYC Dip-switches . can not be higher than 29°C/84° F. - Allows the fan to operate in continuous or cycle • Electric Heat Only (for heat pump unit only) modes while the unit is in heating and cooling mode. - T his setting is typically used for Emergency Heating. CON(Continuous) • Wall Thermostat Enable -Allows fan to run continuously,circulating air even when the - A wired wall thermostat can be connected to the temperature setting has been satisfied.This switch helps to maintain the room temperature closer to the thermostat unit .If it is,this dip switch must be moved to the "' setting. · Wall Thermostat Enable Position.before the wall CYC(Cycle) thermostat will begin control. - This setting allows the fan to cycle on and off with the • Setpoint Terpperature Limits compressor or electric heater.The fan stops a short time after the temperature setting is satisfied. - Provides a restricted range of temperature control. 8 WALL THERMOSTAT TERMINAL (Optional) • IMPORTANT: Only trained, qualified personnel · should access electrical panel on unit and install electrical accessories. Please contact your local electrical contractor, dealer, or distributor for assistance. • Thermostat Wire Routing Thermostat wire is field supplied. Recommended wire gauge is 18 to 20 gauge solid thermostat wire. NOTE: It is recommended that extra wires are run to unit in case any are damaged during installation. Thermostat wire should always be routed around or under, NEVER through, the wall sleeve. The wire should then be routed behind .the frorit panel to the easily accessible terminal connector. - Insert the wire connector of the wall thermostat into the relevant terminal according to different shapes as shown below. Term.inal of some types of wall thermostat • Installation instruction of PTAC other Wall Thermostat - Remove the two screws as shown below and take the cover panel down. Remove the two screws Take the cover panel down Terminal of PTAC other Wall Thermostat Terminal of PTAC other Wall Thermostat [0[0[0z [0z [0[· [0[0[0a.. [0[0[ THERMOSTAT WIRE ROUTING (UNDER SLEEVE, BEHIND FRONT PANEL) ::::? .......... z 0 0 LL Fig. A - Proper Wire Routing Beneath Unit NOTE: Refer to thermostat installation instructions for details on installing wall thermostat. • Installation· instruction of some types of wall Thermostat (you can Consult with the sales agency or manufacturer for details) - Pull the dip switch to the DOWN(OFF) position as shown below.. 9 s""'" � � � t0 TERMINAL ..!.. I I N T""" I I 0 � � � 0 UJ UJ .......... z ::::? >""'" >""'"N N DESIGNATION .FC(L) Front desk control terminal L FC(N) Front desk control terminal N LOW-FAN Low fan speed HI-FAN High fan speed 4-WAY 4-way valve; Reverse cycle (Energized in Heat) For heat pump models HEAT2 Electrical heater 2 HEAT1 Electrical heater 1 COMP Compressor 24V(N) 24VAC terminal N(Neutral),Common 24V(L) 24VAC terminal L ::::. INSTALLATION Dimension of air conditioner HOW TO INSTALL THE UNIT ! CAUTION 1067mm/42inch There are sharp edges that can cause serious cuts. When lifting the air conditioner,it is HEAVY.Use 2 people to lift. 408mm/16inch - For existing sleeve,you should measure the wall sleeve dimensions. - Install the new air conditioner according to these installation instructions to achieve the best performance. All wall sleeves used to mount the new air conditioner must be in good structural condition and have a rear grille that securely attaches to the sleeve or the flange of the sleeve to secure the new air conditioner. -To avoid vibration and noise,make sure the unit is installed securely and firmly. - When installing the sleeve,make certain there is nothing within 20 of the back that would interfere with heat radiation and exhaust air flow. (See Fig.2) 606mm/23.9inch Dimension of sleeve assembly (optional) 1067mm/42inch 408mm/16inch 376mm/14.8inch COOLED AIR WALL SLEEVE HEAT RADIATION Over 20 INTAKE AIR Shipping tape WALL Fig.3 Fig.2 PREPARATION OF SLEEVE ASSEMBLY(optional) - Refer to the installation instruction of sleeve assembly for details. PREPARATION OF REAR GRILLE ASSEMBLY(optional) - Refer to the installation instruction of rear grille assembly for details. UNIT INSTALLATION - Carefully remove shipping tapes from the front panel. (See Fig.3) - Pull out at the bottom to release it from the tabs . - Then lift up . Fig.4 Shipping screw - Remove the front panel. (See Fig.4) - Remove the shipping screw from the vent door. (See Fig.5) 11 Fig.5 INSTALLATION CONTINUED 12 CARE AND CLEANING - Removing Air Filter FRONT PANEL AND CASE - Turn unit off and disconnect power supply.To clean, use water and a mild detergent. DO NOT use bleach and abrasivers.Some commercial cleaners may damage the plastic parts. 2 Air filters Pull up OUTDOOR COIL - Coil on outdoor side of unit should be checked regularly.Unit will need to be removed to inspect dirt build-up that will occur on the inside of the coil. If clogged with dirt and soot ,coil should be professionally cleaned.Clean inside and outside of outdoor coils regularly. Fig.9 - Replacing Air Filter NOTE: Never use a high-pressure spray on coil. ! CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damge or improper operation. Airflow restriction may cause damage to the unit. Push down AIR FILTERS IMPORTANT:TURN UNIT OFF BEFORE CLEANING. Fig.10 VENT DOOR FILTER IMPORTANT:TURN UNIT OFF BEFORE CLEANING. - If vent door is open, access requires removal of the unit from the wall sleeve. Clean vent filter twice a year or as required. - Make sure to remove the shipping screw from the vent door.(See Fig.5) - Rotate vent control lever to open vent door.(See Fig.6) - Remove four screws from the vent door filter. (See Fig.11) - First pull out vent door steel wire from the hole of the vent door, then take off the vent door and filter. (See Fig.11) - Clean the filter. Dry thoroughly before replacing. - Replace the vent door and filter,reinstall the four screws. - Reinsert the vent door steel wire into the hole of the vent door. Vent door ! CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damge or improper operation. Do not operate unit without filters in place.If a filter becomes torn or damaged,it should be replaced immediately. Operating without filters in place or with damaged filter will allow dirt and dust to reach indoor coil and reduce cooling,heating,airflow and efficiency of unit. Airflow restriction may cause damage to unit. - The most important thing you can do to maintain unit efficiency is to clean the filters once every two weeks as required. Clogged filters reduce cooling,heating and airflow. -Keeping filters clean will: Decrease cost of operation. Save energy. Prevent clogged indoor coil. Reduce risk of premature component failure. control lever Screws Vent door steel wire -To Clean Air Filters: Vacuum off heavy soil. Run water through filter. Dry thoroughly before replacing. Fig.11 13 Vent door Vent door filter TROUBLESHOOTING POSSIBLE CAUSES UNIT DOES NOT START Unit may have become unplugged Fuse may have blown Circuit breaker may have been tripped Unit may be off Unit may be in a protection mode. UNIT NOT COOLING/HEATING ROOM Unit air discharge section is blocked Temperature setting is not high or low enough Note:Setpoint limits may not allow the unit to heat or cool the room to the temperature desired. Check section on dipswitch settings. Unit air filters are dirty. Room is excessively hot or cold when unit is started. Vent door left open. Unit may be in a protection mode. Compressor is in time delay. DISPLAY HAS STRANGE NUMBERS/CHARACTERS ON IT UNIT MAKING NOISES WATER DRIPPING OUTSIDE SOLUTONS Check that plug is plugged securely in wall receptacle. Note:Plug has a test/reset button on it.Make sure that the plug hasnot tripped. Replace the fuse.See Note 1. Reset circuit breaker.See Note 1. Turn unit on (bottom right button on keypad). Make sure that curtains,blinds or furniture are not restricting or blocking unit airflow. Reset to a lower or higher temperature setting. Remove and clean filters. Allow sufficient amount of time for unit to heat or cool the room. Startheating or cooling early before outdoor temperature,cooking heat orgatherings of people make room uncomfortable. Close vent door. Check dipswitch settings for desired comfort. Wait approximately 3 minutes for compressor to start. The unit may be in a protection mode. The unit may be set for °C (instead of °F). Clicking, gurgling and whooshing noises are normal during operation of unit. If a drain kit has not been installed, condensation runoff during very hot and humid weather is normal. See Note 2. If a drain kit has been installed and is connected to a drain system, check gaskets and fittings around drain for leaks and plugs. WATER DRIPPING INSIDE Wall sleeve is not installed level Wall sleeve must be installed level for proper drainage of condensation. Check installation is level and make any necessary adjustments. ICE OR FROST FORMS ON INDOOR COIL Low outdoor temperature Dirty filters When outdoor temperature is approximately 55°F or below, frost may form on the indoor coil when unit is in Cooling mode. Switch unit to FAN operation until ice or frost melts. Remove and clean filters. COMPRESSOR PROTECTION Random Compressor restart - Whenever the unit is plugged in, or power has been restarted, a random compressor Power may have cycled, so compressor is in restart protection. ELECTRIC HEATING FAILURE restart will occur. After a power outage, the compressor will restart after approximately 3 minutes. Compressor Protection-To prevent short cycling of the compressor, there is a random startup delay of 3 minutes and a minimum compressor run time of 3 minutes. Clean the evaporator once every three months by professional installers. NOTES: 1.If circuit breaker is tripped or fuse is blown more than once, contact a qualified electrician. 2.If unit is installed where condensation drainage could drip in an undesirable location, an accessory drain kit should be installed and connected to drain system. 14 The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details. 16120300A2070
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