EZ Series NY Engineering Manual

Transcription

1 EZ Series NY 42 x 16 Flat Top PTAC/PTHP Perfect fit for Replacing Existing 42 X16 Flat Top Units and for New Construction Projects Engineering Manual MANUFACTURER OF QUALITY AIR CONDITIONING AND HEATING PRODUCTS Rev

2 EZ REPLACEMENT GUIDE Original Model Case Height Case Width Our Model Original Model Case Height Case Width Our Model Amana Keeprite PT 42 x 16 Series Climette 18 5/16 32 CS PB 26 x 16 Series Seasonall 18 5/16 32 CS American Air Filter Lennox Enersaver Type /2 16 PTEIA Series 22 1/4 38 PT Type 16 Hydronic /2 16 McQuay Nelsonaire Series /2 25 C/EC 27 3/8 54 1/2 EC American Standard EB Series /8 EB TW Series Type /2 41 J/EJ Series JA Type 40 Remotaire(SR) 16 1/ K, EK and RK Series 13 15/16 36 KF Applied Comfort Type EA, ES and RS 16 3/8 44 7/8 ED DM/DMQ 18 5/16 32 CS Type NE NE SC Series SC Mueller SC Series RM Climatrol UN Carrier Remington 51PH Wallmate 18 15/16 32 CS J/EJ Series JA Cartaret K, EK and RK Series 13 15/16 36 KF Type / Type /2 41 Chromalox Type / Space Command 16 1/2 45 1/8 CH Simonaire CAM (2 section) /2 CX SSK 15 3/4 41 RT Chrysler 15 1/2 36 CY SSEZ 15 3/4 41 RT Climate Master SSCT 15 3/4 41 RT Climate Master Series 700AD AD Singer Climate Master Series /2 C7 C/EC 27 3/8 54 1/2 EC Climate Master CM EB /8 EB Series 702, 703 & 704 Dunham Bush J/EJ Series JA New Port III N3 K, EK and RK Series 13 15/16 36 KF New Port IV N4 Type /2 41 Embassy Type / Weathertwin RM Type EA, ES and RS 16 3/8 44 7/8 ED Fedders Slant Fin Maxizone Series 16 1/4 27 MX JK JK Unizone UN CC Monterrey CC Friedrich Monterrey 17 1/2 36 FM Climate Master Series 700AD AD Suburban Dynaline Climate Master Series /2 C7 Gas Unit GS Climate Master Series CM TPI 702, 703 & 704 ET Series ET Ra-Matic RM TE Series TE Weil-Mclain Vert-I-Pak VP ClimateMaster Series 700AD AD General Electric Climate Master Series 702, 703 & CM Zoneline Westinghouse AJ Series RB Series /2 RB AZ Vertical /4 VP Worthington UN Heil Quaker Zoneaire SEA Series 14 1/2 35 7/8 HQ CHP Series 18 5/16 32 CS SHA Series 14 1/2 35 7/8 HQ CSM Series 18 5/16 32 CS Series C 18 5/16 32 CS Zoneaire RM Series RM Ice-Cap / Ice Air Zoneaire SC Series SC RSK Series RK Custom Products RSCT Series 15 3/4 41 RT RSWL Series 13 1/4 56 1/2 WL ITT Nesbitt Vertical Units, Fan Coils, and other related HVAC products. Challenger Series 16 1/4 42 1/4 NC (Consult with Factory) Roomate Series - N - - CY If you don t see the unit you re looking for in the above list, please call Modular Roomate (MW) - - NR us about having a unit custom designed for you.

3 Table of Contents TABLE OF CONTENTS...1 INTRODUCTION...2 APPLICATIONS New Construction... 3 Retrofit/ Replacement... 3 Application Considerations... 4 Guaranteed Quality... 4 Quiet Operation... 4 PRODUCT OVERVIEW (EZNY) Durable Construction... 5 Superior Corrosion Protection... 5 STANDARD CHASSIS OVERVIEW & ACCESSORIES OVERVIEW...6 Standard Chassis Features and Benefits Options and Accessories ORDERING DATA Model Nomenclature Replacement Guide PERFORMANCE DATA EZNY07 & EZNY EZNY12 & EZNY DIMENSIONAL DRAWINGS ENCLOSURE SELECTION Panel/Curtain/Window Wall Applications Block Wall Applications INSTALLATION DATA Installation Notes For Replacement Units Receiving Units Installation Checklist Framing Condensate Drain Kit... 19, 20 Wall Sleeve Installation Rear Grille Installation Hydronic Coil Chassis Installation Room Enclosure... 30, 31 MAINTENANCE...32 WIRING DIAGRAMS Standard Model Unit With Wall Mounted Thermostat SYSTEM CONTROLS AND MANAGEMENT...36 User Interfaces Remote Control Digital Control Panel Wall Thermostats Front Desk Control Ssytem Mangement Software Fan Cycle Control Hydronic Heat Fan Lockout Kit Room Freeze Prevention High Temperature Compressor Protection Valve Controls Low Temperature Compressor Protection Custom Operation & Continual Room Monitoring Diagnostic Software CONTROL PANEL... 38, 39 REMOTE THERMOSTATS...40 Remote Wall Mounted Thermostats REMOTE THERMOSTAT INTERFACE...41 CONTROL BOARD PHYSICAL FEATURES...42 TEMPERATURE LIMITING...43 ERROR CODES...44 Diagnostic Display Error Codes PERFORMANCE SPECIFICATIONS START UP AND MAINTENANCE...48 TYPICAL WARRANTY

4 Our Company Islandaire is the fastest growing specialty air conditioning and heating manufacturer in the country. Founded in 1992 by Robert Hansen, it has grown into a multi-million dollar company in just a few short years. Islandaire builds a full complement of high quality thru-the-wall replacement air conditioners and heat pumps, water source heat pumps, and gas units in East Setauket, New York. Each model fits perfectly into the existing original wall sleeve assembly, thereby saving both time and money during installations. Our Engineering, Production, Sales and Customer Service departments have been fully integrated to provide the maximum degree of user satisfaction. We at Islandaire feel that this team approach to manufacturing produces a superior overall product and assures a larger degree of flexibility in design and production scheduling to meet tight prototyping or construction timetables. The Perfect Fit Thru-wall air conditioners were developed in the late 1950 s. Over the next forty years many companies engineered, manufactured and installed a variety of different units throughout the United States and Canada. Today, a number of these companies are no longer in business or have discontinued their line of thru-wall air conditioners and no longer carry replacement parts. Islandaire offers replacement air conditioners and heat pumps that are interchangeable with units no longer available from the original manufacturer. Our units are engineered to fit perfectly within the existing wall sleeve, thereby reducing installation time and expense. They are manufactured at our modern 75,000 square foot plant on Long Island in New York. Thank you for considering our products, The Islandaire Team 2

5 Applications For new construction, or as a replacement, our packaged terminal air conditioning (PTAC) units provide year-round comfort control for hotels, motels, apartments, dormitories, shops, nursing homes, assisted living centers, satellite offices, room additions and other applications that require economical heating and cooling. Individually controlled PTAC units are ideal for rooms that are not occupied during vacancies, holidays, weekends or nights. Individual units allow tenants to choose the degree of comfort and operating economy. Thermostat and fan controls are built into the digital touch-pad, plus all units have the flexibility to convert to a wall thermostat control, or interface into energy management systems. Whether you are designing a new structure or replacing PTAC units in an existing building, Islandaire will meet your needs. New Construction The Islandaire EZNY Packaged Terminal Air Conditioning (PTAC) unit is designed to meet the needs of the architect, engineer, and contractor. For unit installation, Islandaire s expert support network will assist in all applicable aspects of the construction project, from preparing a budget to start-up. ADVANTAGES FOR NEW CONSTRUCTION Design Flexibility For The Architect Engineer Super-quiet performance, indoors and out Optional architectural grille to permit custom exterior appearance Lower Operating Costs and Reliable Comfort for the Occupant Islandaire helps lower utility costs with energy efficient units that exceed industry standards. Energy savings are achieved in both heating and cooling environments through efficient mechanical design and onboard electronic logic. Separate indoor and outdoor fans provide lower operating costs. Energy management software is built into the unit s standard digital controls. These units may also qualify for electrical power company rebates. (Consult your local utility provider for rebate opportunities.) Retrofit/Replacement Islandaire PTAC units are engineered to fit perfectly within most existing wall sleeves, thereby reducing installation time and expense. There is no time wasted on redesigning an existing wall opening or removing an old wall sleeve. Just slide the old chassis out and replace with a new one from Islandaire. EZ Quick connections to the control box simplify electrical hook-up, and our slide-out chassis eases installation into the wall sleeve. Rapid servicing reduces downtime: complete chassis can be replaced in minutes without disrupting other occupants. No bulky duct system No separate equipment room No water towers or additional cooling equipment Less sensitivity or building orientation 3

6 Applications (cont.) Application Considerations It is important for air conditioning systems to be properly sized for each application in order to achieve desired temperature and humidity levels. It is strongly recommended that a professional engineer match the PTAC units with the building structure and climate. The following application considerations are all important in choosing the proper PTAC system for the building structure. UNDERSIZING If a PTAC unit is undersized (cooling capacity is less than required capacity for an application), the unit will not be able to cool the space down to the desired temperature during very hot days. OVERSIZING If a PTAC unit is oversized (cooling capacity is greater than required capacity for the specific application), the unit will cool the space down to the desired temperature too quickly creating a cool, yet excessively humid, space. AIR INFILTRATION Excessive air infiltration can intensify problems associated with undersizing or oversizing a PTAC unit. This can be the cause of insufficient cooling, dehumidification, or heating. Sources of air infiltration include vents, gaps around windows and doors, and improperly sealed floors, ceiling or wall joints. Guaranteed Quality Each Islandaire unit is designed to operate quietly and efficiently and is backed by the best warranty program available. The EZNY Unit is warranted for 12 months parts and labor, plus an additional second through 5th year sealed system part only warranty. Whether it is an exact replacement unit or a new construction project, Islandaire is the smart choice for all your air conditioning and heating needs. Quiet Operation The cross-flow tangential fan wheel design used in our EZNY units provides whisper quiet operation while delivering maximum airflow required for proper air circulation. Separate indoor and outdoor fan motors further reduce operating sound levels and costs. The galvanized 18 gauge construction of the chassis and enclosure minimizes vibration for quieter operation. Vibration isolators on the rotary compressor keep it running smoothly and quietly. The unit bulkhead is fully insulated to decrease outdoor sound transmission. The compressor is isolated to minimize vibration and sound transmission for quiet operation. 4

7 Product Overview (EZNY) Durable Construction Islandaire PTAC/PTHP units are built with durable, quality components designed for continuous operation in all environments. Our wall sleeves are constructed of thick 18-gauge steel with a tough baked-on finish for maximum durability. The outdoor fan motor is totally enclosed, preventing damage from moisture and debris introduced by extreme weather conditions. Both indoor and outdoor fan motors are permanently lubricated for extended life. Electrical components are located on the indoor side of the wall protecting them from driving rain and humidity. The compressor is a reliable, high efficiency design rotary compressor. It is hermetically sealed and designed for continuous operation. Wall sleeves and enclosures are 18 gauge galvanized with baked on powder coat finish. There are many available color options. Rugged decorator style extruded aluminum discharge grille with matching integral control door. Superior Corrosion Protection Application of air conditioning equipment in a corrosive environment requires special consideration. The corrosive nature of salt water vapor, chlorine and acid vapor, demands a unit that can withstand these environments. Any metal portion that is exposed to a corrosive vapor must be specially treated. All Islandaire PTAC units have special corrosion protection that can help dramatically extend the life of the unit. Listed below are just some of the components that feature corrosion protections: Wall Sleeve The entire wall sleeve is constructed of 18-gauge galvanized steel. Treated inside and outside with a baked-on based powder coat paint to protect it from the corrosive effects of salt spray. Base Pan Base pan is constructed of 18-gauge galvanized steel and has a corrosion resistant coating to protect it from the elements. Treated inside and outside with a baked-on based powder coat paint to protect it from the corrosive effects of salt spray. Condenser Coil Protective coating applied to the coil to prevent corrosion and weathering. The coils header plates are constructed using aluminum to prevent corrosion. Condenser Fan Blade Constructed of strong engineering plastic that has excellent dimensional stability over a wide range of service temperatures. Condenser Fan Motor Specially coated by the manufacturer. Compressor Protective coating applied by the manufacturer on the exterior to enhance equipment life and performance. Outdoor Louver Made of aluminum, etched and anodized for maximum corrosion protection. Available in stamped or architectural styles. Can be painted in a wide choice of colors. 5

8 Standard Chassis Overview Standard Chassis: Islandaire manufactures the EZNY loaded with standard features that other manufacturers often consider optional. Industry standard 42 wide by 16 high Two fan motors for quiet operation and improved performance TANGENTIAL EVAPORATOR BLOWER WHEEL Tangential evaporator blower wheel for quiet operation Hand held remote control Fully insulated firewall to prevent outdoor sound transmission Venturi shroud to improve air flow RETURN AIR FILTER ELECTRONIC COMPONENTS HYDRONIC NC/NO SWITCH DIGITAL TOUCHPAD CONTROL / DIAGNOSTICS COMPRESSOR SLOPED BASEPAN SLINGER FAN BLADE VENTURI SHROUD Accessories Overview HYDRONIC COIL OUTSIDE AIR LOUVER DISCHARGE GRILLE REMOVABLE FRONT PANEL ROOM ENCLOSURE WALL SLEEVE 6

9 Standard Chassis Features and Benefits Compressor Isolated rotary compressor design for continuous efficient, reliable and quiet operation. High Capacity Heat Transfer Surfaces Finned/tube coils incorporate state-of-the-art technology. Unique design provides high efficiency and low air pressure drops. Allows for easy cleaning during scheduled maintenance. Sloped Coil Design Sloped coil design allows the unit to intake air from the bottom of the enclosure and reduce the amount of room required for installation Electrical Components Protected from the elements and easily accessed for service Positive condensate removal Positive condensate removal is achieved with a sloped base pan design, which prevents condensate build-up and overflow. Note Corrosion protection treatment shields the EZNY unit from corrosive environments and extends the life of the unit especially in coastal locations. Tangential Blower Wheel Creates extremely quiet indoor operating environment Generates a balanced and constant airflow into the room Slinger Fan Curved fan blades increase airflow across the outside coil Creates a quiet operating environment outside of building Slinger ring efficiently removes condensate and increases cooling Venturi Shroud Works with the fan to maximize air flow and increase efficiency Removes easily for quick access when cleaning condenser coil 7

10 Standard Chassis Features and Benefits (cont.) NC/NO Switch Built in Normally open/normally Closed switch takes the guesswork out of ordering a unit. With the flick of a switch, the unit can be changed from NC to NO hydronic valve operation. Top Mounted Hydronic Coil Steam or hot water coil assemblies available Left-hand or right-hand piping configuration available for flexible hydronic/steam piping connection Equipped with a protective sheet metal cover to prevent damage during shipping, installation and construction Field reversible left & right piping Return Air Filter Easily removable from the unit for cleaning Filters the circulated air inside the room Keeps the system clean and working efficiently Clean filters increase life of the system components Digital Touchpad Control Reliable and easy to operate Continuous or cycle indoor fan operation Works with hand held remote control and/or wall thermostat Easy to read LED diagnostics - Sensors in the unit continually monitor the indoor coil, outdoor coil, and outdoor air conditions. If abnormal conditions are detected, an error code is displayed, removing the guess work in troubleshooting a unit. Motorized fresh air damper (optional) The optional motorized fresh air damper effortlessly allows you to add fresh air into the room. When the Fresh Air switch is in the ON position, the damper door opens and allows fresh air to be drawn in from outside. When the damper door switch is in the OFF position, the damper door is closed and does not allow outdoor air to enter. 8

11 Standard Chassis Features and Benefits (cont.) Wall Sleeve Eighteen-gauge galvanized steel with a powder coated paint for maximum protection Custom wall sleeve depths available. Panel/curtain/window wall sleeves available as an option Brick stop flange and support legs available as an option The first manufacturer to design and fabricate with a drip edge and built-in pitch combined Exterior Louver/Grilles Heavy-duty, architectural, extruded aluminum to resist weathering Custom colors available (Ask for our color chart sheet) Recessed available Stamped exterior grilles available Room Enclosure Eighteen-gauge galvanized steel with powder-coated paint for maximum protection Custom depths available. (See page 16 for size.) Custom colors available (ask for our color chart sheet) Removable front panel for easy access Custom discharge grilles available; Anodized aluminum or black also available Custom adjustable kick plates are available with various color options Sturdy aluminum discharge grille with hinged control door 9

12 Options and Accessories Condensate Drain Kit Attaches to wall sleeve base pan to control condensate removal Can be adapted for left or right side exterior drainage or internal drain connection Remote Control Part Number Ability to control PTAC from anywhere in the room Large full function display ON/OFF Operates on two AA batteries Wall Thermostats Wired programmable and non-programmable digital wall thermostats available Wireless digital wall thermostats available Master-slave option available Lateral Duct Allows the air from one PTAC unit to be shared by an adjacent room The kit mounts to the top of the unit and can be configured for either right or left discharge 10

13 Ordering Data Model Nomenclature COMPONENT EZ - COOLING CHASSIS MODEL TYPE NY- ISLANDAIRE 42 X 16 (HYDRONIC) EZ NY 12 A 2 G 1 S 1 4 A A FUNCTIONAL OPTIONS A - NONE B - MOTORIZED FRESH AIR DAMPER (72 CFM) C - POWERED MAKE-UP AIR VENT ADDITIONAL 40 CFM CONT. OPER. D - POWERED MAKEUP AIR WITH HEAT COOLING CAPACITY 07-7,500 BTU 09-9,000 BTU 12-12,000 BTU 16-15,000 BTU POWER MANAGEMENT OPTIONS A- NONE C- ENERGY MGT. N/O D- ENERGY MGT. N/C SYSTEM TYPE A- STANDARD CHASSIS (R410A) VOLTAGE / LINE CORD 1-115V 20 AMPS 2-230V 20 AMPS 4-230V JUNCTION BOX 5-115V 15 AMPS 6-115V JUNCTION BOX 9-230V 15 AMPS IDENTITY CODE 0 - SPECIAL 4 - STANDARD HEATING OPTIONS A- NONE COOLING ONLY G- HYD. WITH AQUASTAT H- HYD. W/2.5 Kw B.U. HEAT (208V-277V) I- HYD. W/3.6 Kw B.U. HEAT (208V-277V) HYDRONIC OPTIONS 1 - NONE 2-24V NC VALVE 6-24V NO VALVE A - LINE VOLTAGE NO/NC SWITCH B - 24V NO/NC SWITCH ROOM CONTROLS F - 24 V REMOTE THERMOSTAT MASTER G - 24 V REMOTE THERMOSTAT SLAVE N - STANDARD ELECTRONIC CONTROL REMOTE T-STAT S - DIGITAL CONTROLS (UNIT MOUNTED) RETURN DISCHARGE OPTIONS 1 - BOT. RET./ TOP DIS. 4 - FRONT RET./ TOP DIS. Replacement Guide WALL OPENING DIMENSION DISCHARGE RETURN AIR RETURN AIR HEAT TYPE MANUFACTURER MODEL 16 1/4 X 42 1/4 ANGLE FLAT BOTTOM FRONT ELECTRIC HYDRONIC AC HP AMANA PTC CLIMATE MASTER PTP LG MC QUAY PDE PSE MQE SINGER NE TRANE PTE 11

14 Performance Data Performance Data for EZNY07 & EZNY09 EZ07 EZ09 Volts BTUH Cooling 7,285 7,200 7,200 8,868 9,500 9,500 AMPS Cool Watts Cool EER CFM High Cool CFM Low Cool/Heat Noise Indoor/Outdoor (DBA) 45/69 45/69 45/70 45/69 45/72 45/73 REFRIGERANT (TYPE) R410A R410A R410A R410A R410A R410A SHIPPING WEIGHT (LB) STC (Unit Off)* Wattage, Amperage, COP, EER listings include compressor, evaporator motor and condenser fan motor. Cooling capacities specified in accordance with ARI standard at conditions of 95 F DB/75 F WB outdoor and 80 F DB/67 F WB indoor. Electrical EZNY07 & EZNY09 LINE VOLTAGE MAXIMUM AMPERAGE / / / WALL SOCKET CONFIGURATION RECEPTACLE NUMBER NEMA 5-20R NEMA 6-15R NEMA 6-20R NEMA 6-30R ELECTRICAL HEAT OPTIONS N/A N/A

15 Performance data (cont.) Performance Data for EZNY12 & EZNY16 Volts BTUH Cooling AMPS Cool , EZ , , EZ ,500 14, Watts Cool 1,191 1,143 1,143 1,422 1,422 EER CFM High Cool Heating capacities specified in accordance with ARI standard at conditions of 47 F WB outdoor and 70 F DB/60 F WB indoor. Wattage, Amperage, COP, EER listings include compressor, evaporator motor and condenser fan motor. Cooling capacities specified in accordance with ARI standard at conditions of 95 F DB/75 F WB outdoor and 80 F DB/67 F WB indoor. CFM Low Cool/Heat Noise Indoor/Outdoor (DBA) REFRIGERANT (TYPE) SHIPPING WEIGHT (LB) /69 R410A /75 R410A /76 R410A /78 R410A /79 R410A 143 STC (Unit Off)* Hot Water Hi-Capacity Hot Water BTU (Thousands) F 200 F 180 F 160 F 140 F Entering Water Temperature BTU (Thousands) F 200 F 180 F 160 F 140 F Entering Water Temperature GPM Steam GPM Hi-Capacity Steam BTU (Thousands) F 65 F 70 F 75 F Entering Air Temperature BTU (Thousands) F 65 F 70 F 75 F Entering Air Temperature

16 Dimensional drawings Units must be installed in accordance with all applicable codes. Ensure there is adequate clearance for servicing and proper operation. A minimum of 18 inches in front of the chassis is required. Provide additional space for service technician to work on the unit. Ensure that drapes, bed, bedspread, furniture, etc., DO NOT block either return or discharge air openings. Figure 1 Top View 1 1/4 RECESSED LOUVER 42 WALL SLEEVE 5 1/2 3 1/2 FLOOR SPACE FOR PIPING ROUGH-IN (TYP R.H. & L.H.) ENCLOSURE REMOVABLE FRONT PANEL Figure 2 Front View /4 21 WALL SPACE FOR PIPING ROUGH-IN (TYP R.H. & L.H.) 1/2 3 1/2 3 REMOVABLE KICKPLATE 14

17 Panel/Curtain/Window Wall Application Units must be installed in accordance with all applicable codes. Ensure there is adequate clearance for servicing and proper operation. A minimum of 18 inches in front of the chassis is required. Provide additional space for service technician to work on the unit. Ensure that drapes, bed, bedspread, furniture, etc., DO NOT block either return or discharge air openings. Figure 4 Room Enclosure Dimensions ENCLOSURE DEPTH (SEE CHART FOR DEPTH OPTIONS) WALL THICKNESS (IN INCHES) WALL SLEEVE PART NUMBER SLEEVE DEPTH ENCLOSURE PART NUMBER ENCLOSURE DEPTH 52 5 to 5-3/ / to 6-3/ / to 7-3/ / to 8-3/4 9 to 9-3/ /4 13-3/ to 10-3/4 11 to 11-3/ /4 13-3/ to 12-3/ / to 13-3/ / Figure 3 Typical Panel/Curtain/Window Wall Application Figure 5 Wall Sleeve Dimensions ENCLOSURE DEPTH WALL THICKNESS WINDOW SILL SHEET ROCK WALL STUD A/C PANEL 42 CHASSIS EXTERNAL LOUVER 16 ENCLOSURE WALL SLEEVE MULLION SLEEVE DEPTH (SEE CHART FOR DEPTH OPTIONS) *EXAMPLE TYPICAL APPLICATION 15

18 Block Wall Application Wall Sleeve and Room Enclosure Selection (Panel Wall) To select the correct enclosure first determine wall thickness. Wall thickness is measured from the indoor sheet rock panel to the outside wall. WALL THICKNESS (IN INCHES) WALL SLEEVE PART NUMBER SLEEVE DEPTH ENCLOSURE PART NUMBER ENCLOSURE DEPTH Figure 6 Room Enclosure Dimensions 5 to 5-3/4 6 to 6-3/ ENCLOSURE DEPTH (SEE CHART FOR DEPTH OPTIONS) 7 to 7-3/ to 8-3/ to 9-3/ to 10-3/ to 11-3/ to 12-3/ to 13-3/ to 14-3/ to 15-3/ Figure 5 Typical Block Wall Application Figure 7 Wall Sleeve Dimensions WALL SLEEVE SLEEVE DEPTH (SEE CHART FOR DEPTH OPTIONS) 16

19 Installation Data Wall Sleeve and Room Enclosure Selection (Block Wall) To select the correct enclosure first determine wall thickness, then choose the correct Wall Sleeve and Enclosure from the chart. Installation Notes 1. Units must be installed in accordance with all applicable codes. 2. Ensure that there is adequate clearance for servicing and proper operation. A minimum of 18 inches in front of the chassis is required. Provide additional space for service technician to work on the unit. 3. Any gaps between the air discharge outlet and the discharge grille will cause the unit to short cycle. This condition will shorten compressor life. Small gaps should be sealed with foam rubber gaskets. Larger gaps may require a sheet metal collar (consult installing contractor). 4. To prevent damage, this unit should NOT be operated to provide supplementary heating & cooling during the construction period. The unit is designed for operation in a normal indoor environment. Operating this unit in an unenclosed space or exposure to construction environment may result in permanent damage. 5. Be sure that the amperage of the dedicated electrical service to the unit is correct. 6. After the unit is installed in the sleeve, the shipping carton can be cut down and secured to the unit to protect it during the construction phase. For Replacement Units 1. Inspect the existing wall sleeve to insure it is not damaged and that it is securely mounted in the wall. Use a level gauge to insure the sleeve is pitched properly. Be sure that any gaskets originally mounted on the wall sleeve that are missing or worn be replaced. 2. Certain installations with extended sleeves will require the use of baffles. Sheet metal baffles are attached to the condenser coil flange and have seals on their outer surface. These seals will seat against the outdoor grill when the unit is slid into an extended wall sleeve. It is important that units installed in extended wall sleeves have these baffles installed. Without baffles, compressor life may be shortened. 3. Inspect the unit specification label in order to identify the model number. At this time voltage, capacity, and other special features should be noted. 4. Be sure the amperage of the dedicated electrical service to the unit is correct. Use of an extension cord will void warranty. Receiving Units Do not store or transport the unit on end. For proper storing, each carton is marked with up arrows. In the event that elevator transfer makes up-ended positioning unavoidable, absolutely insure the unit is in the normal upright position for at least 24 hours before operating. The units must be handled with care at all times. Rough handling can damage internal electrical and refrigeration components. 17

20 Installation Data (cont.) Installation Checklist Installation and maintenance should be performed by qualified personnel who are familiar with local codes and regulations, and are experienced with this type of equipment. Figure 8 MAIN STUD Framing and Minimum Wall Opening JACK STUDS HEADER - (1) 4 X4 OR (2) 2 X 4 ON EDGE All electrical connections and circuits must be installed in compliance with and conform to the National Electrical Code (USA), Canadian Electrical Code (Canada), and local codes that have jurisdiction. 6 FROM FINISHED FLOOR 16 1/2 42 1/2 Ensure the supply air outlet is properly sealed to discharge of enclosure. Electrical power is disconnected during installation or service. JACK STUD CRIPPLE Condenser air inlet and outlet MUST be clear and free of obstructions. FLOOR SUB-FLOOR Condenser seals and baffles, where applicable, must be installed. Ensure that drapes, bed, bedspread, furniture, etc., DO NOT block either return or discharge air openings. Electrical Outlet Location The outlet must be located within the shaded area on the illustration below. When existing wall sleeves are utilized, inspect existing wall sleeve. Figure 9 Outlet Location Framing Proper building practices must be used when constructing a wall opening to support a PTAC wall sleeve and chassis. Units must be installed in accordance with all applicable codes. 42 1/2 REQUIRED OUTLET LOCATION 4 1/4 MAX /2 6 FROM FINISHED FLOOR 18

21 Condensate Drain Kit Condensate Drain Kit An indoor/outdoor drain kit is available as an accessory item. When a drain kit is to be installed, do so before installing the wall sleeve in the wall. During periods of high humidity and/or during heat pump operation, condensate water will collect in the bottom pan of the chassis. When the chassis bottom pan is full, the water will overflow into the wall sleeve and out the drainage holes on the back edge of the wall sleeve. The Condensate Drain kit contains an overflow tube to direct excess condensate water from the bottom of the sleeve to either an internal or external drainage path. Because heat pumps generate condensate even during the heating season, it is recommended to always use a drain kit with heat pump models. Determine whether the kit should be installed as an internal or external drain system. External Drain Installation The drain kit can be installed as an external drain on the left or right side drain opening on the sleeve. Determine which drain opening will provide the best drainage for the installation. NOTE This drain kit serves only as a link between the unit and field-supplied condensate drain system. Installing the kit without connecting it to a drainage system will result in inadequate condensate removal, possible leakage and corrosion. Figure 10 External Drain Installation OUTDOOR GASKET OUTDOOR DRAIN FITTING SHEET METAL SCREWS Local codes will determine the proper method for condensate disposal. The drain kit must be installed before installation of the wall sleeve condenser grille. 1. Remove the cardboard weather board from the wall sleeve. 2. Install the outdoor drain fitting and one of the outdoor drain fitting gaskets over one of the drain holes on the rear of the wall sleeve. Secure this assembly to the rear of the sleeve with two sheet metal screws into the holes provided in the wall sleeve. 3. Cover and seal the remaining drain hole using the remaining outdoor drain gasket, cover plate and remaining sheet metal screws provided Periodically inspect drain passages for blockage. Blow out drain tubing annually to prevent overflow from entering the building. Figure 11 SHEET METAL SCREWS BLOCK-OFF PLATE Block-Off Plate Installation OUTDOOR GASKET 19

22 Condensate Drain Kit (cont.) Internal Drain Installation The drain kit can be installed as an internal drain on the bottom of the wall sleeve to allow condensate to drain into an internal drain system inside of the building. Locate the drain so that it will be on the room side of the wall when the cabinet wall sleeve is installed. NOTE: The drain kit must be installed prior to the installation of the wall sleeve. Figure 12 Internal Drain Location DETERMINE LOCATION OF INTERNAL DRAIN. DRILL MOUNTING HOLES ACCORDING TO TEMPLATE 1. Locate an area on the wall sleeve that will be inside the room when the sleeve is installed. If a subbase is installed, locate the kit a minimum of 5 1/2 from the front flange of the wall sleeve. This will provide adequate clearance for the subbase. 2. Please refer to Drain Kit instructions. 3. Using figure 13 as a guide, assemble the drain gasket, drain fitting plate, and indoor drain fitting together. Install the assembly into the drilled holes and secure using the two indoor mounting screws provided. The screws must be inserted INSIDE the wall sleeve and TOP driven down into the drain fitting plate. 4. Ensure drain tube is not restricted. Cover the two screw heads with a good quality outdoor caulking (not supplied) for additional corrosion protection. NOTE: If the drain fitting is not connected to an indoor drainage system immediately after the wall sleeve is installed, plug the hole with cork (not included) to prevent indoor water damage in case it rains. DRAIN LOCATION FROM SIDE TO SIDE IS DETERMINED BY BUILDING DRAIN SYSTEM DRAIN LOCATION FROM FRONT EDGE OF WALL SLEEVE SHOULD BE A MIN. OF 5 1/2 INCHES IF USING SUBBASE Figure 13 Internal Drain Installation ATTACH DRAIN FITTING, GASKET, AND PLATE WITH SCREWS INSERTED THROUGH WALL SLEEVE SHEET METAL SCREWS GASKET 5. Install a 1/2 ID tube or hose (not included) on the drain fitting and interconnect it to the drain system inside of the building. Ensure that there are no kinks or traps in tube or hose. Kinks or traps can cause improper drainage. PLATE DRAIN FITTING INSIDE OF WALL SLEEVE 6. Install the two drain block-off plates and outdoor drain gaskets on the outdoor portion of the wall sleeve as shown in figure 14. These components can be installed after the sleeve is secured in the wall opening just prior to the installation of the condenser grille and chassis. Figure 14 INSTALL BLOCK-OFF PLATES AND GASKETS OVER LEFT AND RIGHT EXTERIOR DRAIN HOLES Block-Off Plate Installation 20

23 Wall Sleeve Installation Wall Sleeve Dimensions: 13 3/4 D x 42 W x 16 H Includes a protective rear filler panel to ensure stability during shipping and provide a barrier during construction. Wall Sleeve Installation After the wall opening is checked for location, size, and clearances, proceed to wall sleeve installation. Figure 15 Wall Opening Wall Sleeve Installation 1. Install Condensate Drain Kit (if applicable). 2. Slide the wall sleeve into the wall opening. The unit chassis must fit snugly and uniformly into the wall sleeve without distortion. 3. Make sure that the sleeve is within the range of minimum projections as outlined on the next page. 4. Level wall sleeve side-to-side. When using an INTERNAL DRAIN with EZNY units it is recommended to install the wall sleeve in a level position front-to-back within the wall. If the internal drain was to clog up from lack of maintenance water will still overflow through the weep slots in the sleeve near the louver and be directed outdoors. For proper drainage, the sleeve should be level from side-to-side and one-quarter bubble in the sight glass sloping to the outside, if unit is to drain outside. 5. Secure the wall sleeve by anchoring with fasteners through the sides and top. Drill holes of proper size and in the proper location so the screws will engage into strong supporting members of the wall. Wall Sleeve Figure 16 Figure 17 Wall Sleeve Installation Front view Make sure wall sleeve is level side-to-side FASTEN SLEEVE TO FRAMING WITH WOOD SCREWS AT SIDES & TOP DO NOT DRILL OR ATTACH SCREWS TO BOTTOM OF SLEEVE Wall Sleeve Installation DO NOT DRILL THROUGH BOTTOM OF WALL SLEEVE. THIS CAN CAUSE LEAK- AGE OF CONDENSATE WATER WITHIN THE WALLS. 6. Check the level of the wall sleeve and adjust if necessary. 7. Caulk or seal around the outside of the entire sleeve. 8. Recycle or dispose of packaging materials per local codes. SIDE VIEW INSIDE WALL SEE STEP 4 21

24 Rear Grille Installation Standard Rear Grille The rear grille directs condenser airflow and provides a protective barrier for the outdoor coil. Either the approved Standard or Architectural grille must be installed before installing the chassis. Standard Louvered Grille Installation 1. Prepare the grille for installation by installing the five plastic fasteners supplied through the holes in the grille. Figure 18 Standard Grille Fastener STANDARD GRILLE 2. Guide the plastic fasteners located on the lower-right and lower-left hand corners of the grille, with their corresponding holes on the rear outside edge of the wall sleeve. 3. If installing the grille from inside the room: 4. Angle the grille through the opening at the rear of the wall sleeve, then pull the grille back to the wall sleeve and align the screw heads to the hole. Be sure to keep a firm grip on the grille to prevent it from dropping and/or causing possible injury or property damage. 5. Secure the grille to the wall sleeve by installing screws into the plastic fasteners. Be careful not to damage fasteners by overtightening. Figure 19 INSIDE WALL PLASTIC FASTENER ANGLE THE GRILLE THROUGH THE OPENING AT BACK OF WALL SLEEVE 1 Std. Grille Installation STANDARD GRILLE 2 PULL FORWARD TO INSERT SCREW HEADS INTO HOLE Figure 20 Std. Grille Installation SECURE THE GRILLE TO THE WALL SLEEVE BY TIGHTENING SCREW HEADS IN HOLE. DO NOT OVERTIGHTEN WALL SLEEVE HOLES 22

25 Rear Grille Installation (cont.) Architectural Rear Grille The rear grille directs condenser airflow and provides a protective barrier for the outdoor coil. Either the approved Standard or Architectural grille must be installed before installing the chassis. Figure 22 Threaded Stud Installation Architectural louvered grille kit installation 1. Install the four threaded studs into the threaded openings on the inside face of the grille. Install a washer and one hex nut to the end of each stud. 2. Manipulate the grille out through the rear wall sleeve opening. Be sure to keep a firm grip on the grille to prevent it from dropping and/or causing possible injury or property damage. 3. Attach the grille to the sleeve by aligning and inserting the hex nut threaded onto the studs through the hole in the wall sleeve. 4. Secure the grille to the sleeve by tightening the hex nut and adding and tightening an additional hex nut. STUD Figure 23 INSIDE HEXNUT ARCHITECTURAL GRILLE WASHER INSTALL THE FOUR THREADED STUDS INTO THE THREADED OPENINGS ON THE INSIDE FACE OF THE GRILLE. INSTALL WASHERS AND HEX NUTS TO THE END OF EACH STUD. Arch. Rear Grille Installation ARCHITECTURAL GRILLE 2 Figure 21 Architectural Rear Grille Parts 1 ANGLE THE GRILLE THROUGH THE OPENING AT BACK OF WALL SLEEVE PULL FORWARD TO GUIDE HEX NUTS 2 THROUGH HOLE IN WALL SLEEVE, THEN TIGHTEN HEX NUTS. SECURE WITH AN ADDITIONAL HEX NUT. WALL SLEEVE ARCHITECTURAL GRILLE HOLE IN 23

26 Rear Grille Installation (cont.) Figure 24 Wall Sleeve Dimensions and Mounting Hole Locations for Installation of Exterior Louver Grille by Others TYPICAL HOLE 24

27 Rear Grille Installation (cont.) Figure 25 Wall Sleeve Dimensions and Mounting Stud Locations for Installation of Exterior Louver Grille by Others

28 Hydronic Coil The Hydronic Coil is an economical way to provide heat to a room. This coil mounts directly to the wall sleeve, allowing the PTAC chassis to be installed or removed independently without disturbing the hydronic connections. The hydronic coil kit works with a heavy duty valve motor that is electronically controlled by the PTAC onboard controls. Also included is an aquastat that, when installed, delays fan operation until water has reached a minimum temperature. Figure 26 Hydronic Coil The Hydronic Coil Assembly consists of the following parts: Coil Protection Plate - To protect the coil surface during shipping Open Cell Foam - Provides an air-tight seal between the Room Enclosure and the hydronic coil Hydronic Coil - Engineered to last Coil Frame - Provides a sturdy platform for mounting and positioning the coil. Hydronic Coil Orientation The Hydronic Coil can be easily re-configured from right to left piping connections. Orientation can be changed by removing the screws from the bottom of the assembly and re-installing the coil in the desired position. Figure 27 Hydronic Coil Assembly COIL PROTECTION PLATE OPEN CELL FOAM HYDRONIC COIL COIL FRAME 8 X 3/8 HEX SLOTTED SCREW 26

29 Hydronic Coil Installation Hydronic Coil Installation 1. Position the hydronic coil assembly onto the wall sleeve. 2. Insert the tabs on the left and right support brackets into the corresponding slots on the wall sleeve. Push down on the coil until the tabs are firmly seated in the slots. 3. Secure coil to wall sleeve by fastening five screws into the holes located along the coil support brackets that align with holes in the wall sleeve. Note: All plumbing connections should be made within the room enclosure (see dimensional drawings). Make sure all piping is plumbed to the coil and system has been bled of air. Different wall enclosures are required for installations depending on the depth that the sleeve projects into the room. See Enclosure Selection page for details. Figure 28 Figure 29 FRONT VIEW Hydronic Coil Installation HYDRONIC COIL WALL SLEEVE Hydronic Coil Installation SCREWS Figure 30 Hydronic Coil Installation Optional Hydronic Coil Freeze Protection The hydronic heat kit can have a factory installed freeze protection thermostat, which allows a normally open water/steam valve to open when the thermostat senses 40 F at the hot water or steam coil. Once the temperature of the freeze thermostat rises above 50 F, the water valve will return to normal mode operation. 27

30 Hydronic Coil Piping Soldering the valves Solder the flow valve and other necessary components in line with the plumbing rising from the floor or wall. Ensure that existing pipe, fittings, valves and other materials are clean and free of foreign materials. Normally Closed/Normally Open Switch The NC/NO switch allows the installer to change the unit at the installation site. The switch is located on the electrical cover of the chassis. Aquastat An Aquastat delays the fan operation until the hydronic coil warms up. After the aquastat has been installed on the piping, it connects to the wiring connector on the PTAC chassis. The hydronic heat electrical connections are plug-in to assist in kit installation. Valve Motor After the valve has been installed on the piping, connect the valve leads to the wiring harness. Figure 31 Figure 32 Hydronic Coil Connections HYDRONIC NC/NO SWITCH AQUASTAT VALVE MOTOR SHUT-OFF VALVES Hydronic Coil Connections 28

31 Chassis Installation Chassis Installation 1. Insert the chassis into the wall sleeve. 2. Slide the chassis into the wall sleeve until the chassis flanges contact the front edge of the wall sleeve. 3. Secure the chassis to the wall sleeve using two screws on each side of the chassis to ensure a proper seal between the chassis and the wall sleeve. Figure 33 CHASSIS Chassis Installation Figure 34 Chassis Installation 5/16 SHEET METAL SCREWS Figure 35 Chassis Installation 29

32 Room Enclosure Assembly 1. Create top assembly: Secure the two exterior side panels to the room enclosure top with four screws. 2. Create bottom assembly: Attach the crossbar and interior side panels by sliding the kick plate into the channel located on the room side flange. 3. Slide the top assembly over bottom assembly. 4. Secure the assemblies to each other with screws through the two holes located on the wall-side of the side panels. Figure 37 Room Enclosure Assembly TOP ASSEMBLY BOTTOM ASSEMBLY Figure 36 Room Enclosure Assembly TOP ASSEMBLY ROOM ENCLOSURE TOP Figure 38 Room Enclosure Assembly SCREWS SCREWS SCREWS BOTTOM ASSEMBLY EXTERIOR SIDE PANEL KICK PLATE INTERIOR SIDE PANEL 30

33 Room Enclosure Installation 5. To install the cabinet, place it in front of the chassis. Make sure that the hydronic and electrical connections can be accommodated within the space provided inside the room enclosure. Also make sure that the hinged access door on the cabinet lines up with the control panel on the chassis. 6. Lift the rear edge of the cabinet and push it over the chassis. In this position, the bottom of the cabinet should be resting on the floor. Make sure that the control panel on the chassis can be reached and operated by lifting the hinged door of the cabinet. Also make sure that the cabinet louvers would direct the air towards the center of the room away from the wall. 7. Secure the room enclosure to the wall with screws. Support Legs Installation of these kits requires drilling of mounting holes on both sides of the wall sleeve. The minimum required clearance between the wall sleeve and wall is shown in Table 1. If the distance between wall sleeve and wall will be at or near the minimum clearance distance, mount these kits on the sleeve before installing the sleeve in the wall. Figure 39 ROOM ENCLOSURE Figure 40 Room Enclosure Installation Room Enclosure Installation Figure 41 Room Enclosure Installation SCREWS 31

34 Maintenance Air Intake Filter When air conditioner is operating, airborne dirt and dust becomes trapped in the washable air intake filter. The air intake filter is removable for easy cleaning. A clean filter helps remove dust, lint, and other particles from the air and is important for best cooling and operating efficiency. Check the filter every two weeks to see whether it needs cleaning. 1. Turn unit off. 2. Remove the front enclosure panel. 3. Remove the air filter by grasping the edge of the filter frame and sliding the filter to the side and out of the unit. 4. Wash in hot soapy water, rinse and shake dry. 5. Replace the filter. 6. To dry the filter thoroughly, run your unit for a few minutes in fan mode. Routine Maintenance Keep air intake filter clean. Coils should be inspected periodically for buildup of lint, dirt, leaves, other debris, and bent fins. Clean coils with a soft brush and compressed air or vacuum. Do NOT use sharp objects to clean coils. The fan motors are permanently lubricated and do not require servicing. In areas of heavy snow and ice accumulation, snow and ice should not be permitted to accumulate against the unit. As soon as practical after such inclement weather, clean snow and ice from around the unit as much as possible. Figure 42 Figure 43 AIR INTAKE FILTER Front Panel Removal Air Filter Removal FRONT PANEL 32

35 Maintenance (cont.) Lateral Duct Kit The Lateral Duct kit allows the air from one PTAC unit to be shared by an adjacent room. The kit mounts to the top of the unit and can be configured for either right or left discharge. The amount of air diverted to the second room is adjustable. The kit consists of a main duct for the room of origin and an extension duct to reach the adjoining room and terminal duct. Part Number Main Duct with Transition Part Number Duct Extension Part Number End Grille This original package allows for distribution of air into an adjacent zone requiring a controlled temperature. This assembly will discharge the conditioned air to either the right or left depending upon which end the end cap is placed. Total overall length of duct kit not to exceed 10 feet. Figure 44 Lateral Duct Kit 33

36 Wiring Diagrams Figure 45 Wiring Diagram for Standard Controls 34

37 Wiring Diagrams (cont.) Figure 46 Wiring Diagram for Wall Mounted Thermostat 35

38 System Controls and Management USER INTERFACES The Islandaire EZNY PTAC can be operated by several different control systems. Listed on this page are some of the important control features and a brief description of their functions. Remote Control The unit can be conveniently operated with a battery operated wireless remote control. All functions are accessible through the remote control unit. Figure 47 Remote Control Digital Control Panel The built-in digital control panel features an easy to read digital display, large buttons and bright indicator lights. Energy management and temperature limiting preferences allow the owner to increase efficiency, limit extreme usage and optimize performance. See pages 38 & 39 for full details MODE INDICATOR FAN SPEED INDICATOR CLOCK TEMP INDICATOR LOCK INDICATOR TIMER DISPLAY TIMER Figure 48 Digital Control Panel TEMP ON/OFF POWER FAN SPEED SET TIMER SET HOUR ADJUST MODE HOLD MIN ADJUST General Operation Press the On/Off button on the remote control. Press the MODE button to select the desired operation mode: Cool/Fan/Heat. Press the TEMP + or - buttons to set desired temperature. Press the Fan Speed button to set the desired air flow rate (high/ med/low). Setting the Clock When new batteries are inserted, the default clock setting is 00:00 A.M. To adjust the setting to the current time, open the back cover and push the CLK button; the clock display will blink. Use the HOUR and MIN buttons to set the current time. Then press the CLK button again and close the back cover. Wall Thermostats Terminal connections on the main control board allow easy conversion from an on-board control panel to a wall mounted thermostat control (wired or wireless). See page 40 & 41 for full details Front Desk Control Low voltage terminals on the main control board allow easy connection to a front desk energy management system. Front desk controls allow the unit to be operated from a remote location. Front desk controls can reduce energy consumption by allowing front desk personnel to turn the unit off when a room is vacant. 36

39 System Controls and Management (cont.) SYSTEM MANAGEMENT SOFTWARE The Islandaire EZNY PTAC is equipped with an on-board control system that contains system management software and sensors. Built in safety features protect the unit from the damaging effects of freezing temperatures and power interruptions. Energy management features allow unit performance to be customized and control power consumption. System monitoring software helps service personnel quickly correct any problems. Listed below are some of the important control features and a brief description of their functions. See Performance Specifications section (starting on page 45) for full details of all functions. Fan Cycle Control The indoor fan cycle control allows the unit to operate more efficiently. This feature conserves energy by operating the fan only while the compressor or heater is operating. Constant fan operation in Hi or Lo settings is also available. Hydronic Heat Fan Lockout Kit The control system uses an aquastat that senses the water temperature of the hydronic system. This aquastat prevents the indoor fan from running until the temperature in the hydronic system has reached a sufficient temperature to heat the room. Room Freeze Prevention The indoor freeze protection monitoring system prevents unoccupied rooms from reaching freezing levels that can damage plumbing and fixtures. This feature is automatic and does not require any additional settings. The freeze protection circuit operates without regard to whether the unit is On/Off or which mode the controls are set to. High Temperature Compressor Protection The life of the compressor is extended through a built in temperature protection circuit. The system will initiate a compressor lockout if the compressor temperature exceeds 154 F or if the outdoor air temperature falls below 35 F. Valve Controls Normally open/normally closed zone valve controls for hydronic systems. Low Temperature Compressor Protection An indoor frost sensor will disable the operation of the compressor if freezing conditions exist. This protects the compressor from damage due to airflow reduction or low outdoor air temperature. When the coil temperature rises to a safe temperature the compressor resumes normal operation. Custom Operation and Continual Room Temperature Monitoring The system controls utilize a built-in temperature sensor for measuring room temperature. When a pre-determined (user defined) temperature set point is reached, the on-board controls automatically adjust unit operation to match. See page 43 for Temperature Limiting details Diagnostic Software The system management software performs self-diagnostic tests that can alert service personnel to potential problems. Error codes are stored and displayed on the digital display and can save service call time during troubleshooting and maintenance. See page 44 for a list of Error Codes 37

40 Control Panel Digital Control Panel - Control panel Use the control panel to power on/off, select mode, select fan speed, and adjust the set temperature. Figure 49 Digital Control Panel Auto Restart Feature To prevent multiple units from powering there will be a random 5 to 15 second delay before the unit turns on after power has been restored. Display AUTO Memory Recall Feature The control board utilizes non-volatile memory; computer memory that can retain stored information when not powered. This allows all control settings to be saved and recalled after a power failure or if power is disconnected while servicing the unit. Power Control The ON/OFF button turns the unit on and off. If the electronic controls do not respond to touch pad or remote control commands, you must unplug the unit from the electrical outlet for five seconds and then plug the unit back in. Compressor Short Cycle Protection Built-in three minute timing delay: If cycle is interrupted, the compressor will not restart for three minutes. On all initial power-ups, there is a one-time, 3 minute time delay before the unit will function. The display shows the room temperature (return air temperature) when the unit is in operation. When the temperature is adjusted by pressing the Warm or Cool buttons, the display briefly shows the set temperature for three seconds and then defaults back to room temperature. Mode Control - Cool, Fan, and Heat A light will indicate which mode is currently being utilized. Cool Mode: The unit will circulate and cool the air. Fan Mode: The unit will only circulate the air. Heat Mode: The unit will circulate and heat the air. Heater Safety Feature When the heater is powered off, fan will automatically stay on and run for 60 seconds to ensure the removal of residual heat. 38

41 Control Panel (cont.) Fan Speed Control - Low, High, and Auto The fan speed settings are adjusted with the Fan button. Each time the button is depressed it changes the setting between Low, High and Auto. A light will indicate which setting is currently being used. Figure 50 Fan Controls - Digital Control Panel AUTO Freeze Protection Feature If the temperature in a vacant room falls below 50 F (4.4 C) the freeze prevention thermostat automatically starts the heating cycle to prevent freezing conditions. All other operations will be disabled until the temperature rises above 58 F. When the temperature of the freeze prevention thermostat rises above 58 F the system will resume normal operation. OPERATIONAL PRACTICES If either the Low or High fan settings are selected the fan will continuously operate in the selected Low or High speed even if the set temperature has been reached. When the Auto feature is selected, while the air conditioner is in the COOL or HEAT mode, the fan speeds will change between low and high automatically as the temperature in the room changes and the fan will cycle off when the set temperature is reached. Temperature Controls The Warm and Cool buttons are used to raise or lower the set temperature. By depressing both buttons at once, the display will toggle between Celsius and Fahrenheit. Do not block airflow. Efficient operation of the unit depends on free circulation of air over the coils. Paper, leaves, and other debris can reduce efficiency and cause serious damage to the compressor. Ensure that objects such as drapes, furniture, or plants are not blocking supply and return airflow. Do NOT operate unit with front panel removed or without filter, as this will void any warranties. Keep doors and windows closed. Leaving them open will increase the workload on the unit and will result in higher operating cost and excessive condensate. Figure 51 Temp Controls - Digital Control Panel Do NOT operate unit during construction. Construction dust can clog filter and cause permanent damage to other components. 39

42 Remote Thermostats Remote Wall Mounted Thermostats Remote Thermostat Control The EZNY can be controlled by any remote electronic thermostat that can interface with RCBWYG terminals. A Wiring harness is provided with conductors for all applications (Heat Cool, Heat Pump, Multispeed Fan, etc.). (See page 41.) The Control Selection jumper must be in T STAT position. During a call, the remote thermostat will pass R back to the controller on a respective terminal. The push buttons on the touchpad become inactive in the remote thermostat mode. Note: In terms of outputs, there are two types of thermostats: Relay Contacts and Solid State. Manufacturers of solid state output thermostats include loading resistors in their installation kits. These 560 Ohm, 3 Watt resistors are meant to load thermostat solid state outputs in order for the output voltage to be either 0 or 24Vac, i.e., no floating voltage. These resistors are connected from W, Y, G to common (C), respectively. You can wire any type of 24Vac thermostat straight into the Remote Thermostat Interface on the PTAC control board (see page 41). Wireless Wall Thermostat Wireless wall thermostats are designed to provide precise temperature control without the installation labor and expense of wiring. Powered by AA batteries. Remote Control Node Used with a wireless wall thermostat, the RCN communicates with the thermostat using unlicensed 900 MHz, radio frequency energy. Energy Saving Options Automatic Change-Over, Remote Mounted Thermostats can be obtained to switch from heating-to-cooling and from cooling-to-heating automatically. With automatic change over, the operation of the heating cycle or the cooling cycle is determined by the temperature requirement of the space. Most thermostats with this feature are set to change over when the room temperature varies 3-1/2 F from the set-point. The unit is placed in the cooling mode when the set-point is over 3-1/2 F; 3-1/2 F under the set point places the unit in the heating mode. This 3-1/2 F variation is usually adjustable from a 1/2 F dead band to a 5 F dead band. Each cycle is run until the set point temperature is reached, then that cycle is de-energized. On some thermostats, the automatic change over function can be overridden manually by moving the thermostat selector switch to heat or to cool. The fan operation, with an automatic change over thermostat, is controlled by the fan selector switch. When placed in the fan mode, the fan runs continuously. When placed in the auto mode, the fan will only energize when the thermostat calls for heating or cooling. Mounts in any suitable location that will provide an accurate room temperature reading. Large LCD display provides the user with current room temperature, set point temperature, time, program interval, and other system status information. 40

43 Remote Thermostat Interface The remote thermostat interface terminal block is located on the power module board. A Wiring harness is provided with conductors for all applications (Heat Cool, Heat Pump, Multispeed Fan, etc.). It provides a connection for remote thermostat and energy management inputs. To convert to thermostat operation: 1. Shut main power to unit off. 2. Access main control board and turn remote thermostat dip switch on. 3. Plug in the supplied thermostat harness. 4. Connect wires to field supplied thermostat. Terminal R (Red) Low voltage terminal to supply voltage to an external wall mounted thermostat. This terminal is capable of supplying 100 ma at Vac RMS over the entire input voltage range specified. Terminal LS (Purple) When this low voltage terminal is connected to the R terminal, the compressor and electric heater are disabled to provide an energy management system interface. Terminal GH (Green) When this low voltage terminal is connected to the R terminal, and the unit is in remote mode, the blower/fan will be requested for operation on high speed. Terminal B (Blue) When this low voltage terminal is connected to the R terminal, and the unit is in the remote mode, the reversing valve is energized. Hydronic and electric heat shall be attempted as backups if the B terminal is asserted and the compressor is locked out or disabled. This is subject to the configured heat modes available. Terminal W (White) When this low voltage terminal is connected to the R terminal, and the unit is in the remote mode, first hydronic heat is attempted, and electric heat is switched on as backup (the GL or GH terminal must also be connected to the R terminal). This is subject to the configured heat modes available. Terminal GL (Orange) When this low voltage terminal is connected to the R terminal, and the unit is in remote mode, the blower/ fan will be requested for operation on low speed. Terminal C (Black) Low voltage terminal, 24 Vac common, to provide opposite polarity voltage to wall thermostat. Figure 52 Thermostat Terminal Block R LS GH B Y W GL C Terminal Y (Yellow) When this low voltage terminal is connected to the R terminal, and the unit is in remote mode, the compressor will be switched on (the GL or GH terminal must also be connected to the R terminal). 41

44 Control Board Figure 53 Control Board Physical Features U T S R Q P O N M V W X L K J Y Z I AA BB H G CC Fan Con/Cyc for heating F A B C D E KEY A B C D E F G H I TRANS 24V 24 VAC ACCESSORY REMOTE THERMOSTAT EGND ACCESSORY DIP SWITCH - HEAT CONFIGURATION HYD/GAS FAN SWITCH SYN FAULT DISPLAY IR REMOTE J K L M N O P Q R ODC/IWC- OUTDOOR COIL SENSOR IDC INDOOR COIL SENSOR RA RETURN AIR SENSOR N.C. NORMALLY CLOSED N.O. NORMALLY OPEN COND CONDENSER MOTOR REV REVERSING VALVE GAS GAS VALVE FAN EVAPORATOR MOTOR HI LO COM S T U V W X Y Z AA BB CC L2(N) L2(N) TRANS IN FUSE N.O. COMPRESSOR COM COMPRESSOR N.O. ELEC_N COM ELEC_N N.O. ELEC_L COM ELEC_L TRANS 11V Fuse An easily replaceable 8.0 Amp 250V fuse V is conveniently located on the control board. 42

45 Temperature Limiting Set Temperature Limiting How to Set the Heating and Cooling Limits Setting customized temperature setpoint ranges can save energy costs by limiting extreme settings. To enter the Setpoint setup mode, hold down the FAN + WARM buttons for 5 seconds. Figure 54 Display - Temp Limit Code R1 AUTO Fan & Warm While the unit is in this mode, you can now scroll through a series of codes (R1, R2, R3, R4, etc.) to select the desired temperature limiting setting. To move from one code to the next, press the Fan + Warm buttons together to move to the next code on the digital display. See chart at right for the codes and the setpoint range they each represent. To accept the new setpoint, release the buttons for 10 seconds when the desired code is displayed. The change will take effect when the ON/OFF key is pressed a second time, returning the display to normal function. To cancel the change, wait 10 seconds without pressing the ON/OFF button a second time. Available Setpoint Ranges DISPLAY CODE R1 R2 R3 R4 R5 R6 R7 R8 (FACTORY DEFAULT) LOW LIMIT (DEGREES F) HIGH LIMIT (DEGREES F)

46 Error Codes Diagnostic & Error Codes Control Panel Display Diagnostics Sensors in the unit continually monitor the indoor coil, outdoor coil, and outdoor air conditions. If abnormal conditions are detected, an error code is displayed, removing the guess work in troubleshooting a unit. Figure 55 E2 Display - Error Code AUTO ERROR CODE DIAGNOSIS CAUSE NOTE E2 RETURN AIR (RA) TEMPERATURE SENSOR FAILURE RA SENSOR BROKEN OR LOOSE AT BOARD CONNECTION TURN OFF POWER TO DISPLAY E3 INDOOR COIL (IDC) TEMPERATURE SENSOR FAILURE IDC SENSOR LOOSE OR BROKEN AT BOARD CONNECTION TURN OFF POWER TO DISPLAY E4 ABNORMAL OPERATION CHECK PROPER LOCATION OF IDC SENSOR AND ODC SENSOR ENSURE THAT BOTH SENSORS ARE SECURE TO COILS COMPRESSOR FAILURE COMPRESSOR OVERLOAD OPEN REFRIGERANT LEAK TURN OFF POWER TO DISPLAY E5 OUTDOOR COIL (ODC) TEMPERATURE SENSOR FAILURE ODC SENSOR BROKEN OR LOOSE BOARD CONNECTION TURN OFF POWER TO DISPLAY E9 SYN. FAULT TERMINALS OPEN HIGH PRESSURE SWITCH OPEN - DIRTY CONDENSER COIL (COOLING) - FAILED CONDENSER MOTOR (COOLING) - BE SURE BAFFLES ARE INSTALLED (IF REQUIRED) - REFRIGERANT RESTRICTION - DIRTY FILTER / EVAPORATOR COIL (HEAT PUMP) - EVAPORATOR MOTOR FAILURE (HEAT PUMP) - RETURN / SUPPLY AIR RESTRICTED (HEAT PUMP) ALL ADDITIONAL SAFETIES ADDED TO UNIT SHOULD BE CHECKED TURN OFF POWER TO DISPLAY *FOR BOARDS THAT DO NOT HAVE SYN. FAULT TERMINALS, CAUSES 1-7 LISTED UNDER E9 WILL USE E4 ERROR CODE 44

47 Performance Specifications- EZNY Furnish and install where shown on plans packaged terminal air conditioners of the sizes and capacities shown on the schedule. The units shall be located as shown on the drawings and shall include enclosure/wall sleeve, chassis, outdoor louver, hydronic heat section, valve, and room enclosure. All units shall be ETL listed for safety and tested to ARI for performance. Units should be Islandaire EZNY or equal. Overall dimensions for the room enclosure shall not exceed 52 wide, 22-1/2 high, and 17-3/4 deep. Overall dimensions of the wall sleeve shall be 16 high, 42 wide and (13-3/4 /24 ) deep. All units shall operate on either 115, 208, or 230 volts, 60 Hz, 1-phase power. The minimum energy efficiency ratio (EER) in BTU per hour per watt for each PTAC unit must be in compliance with ASHRAE 90.1 new construction criteria, for all sizes using R-410A Refrigerant. Heating/Cooling Chassis Chassis shall be slide-in, plug-in type with a self-contained, hermetically sealed refrigerant circuit. All chassis sheet metal parts shall be constructed of powdercoated G-60 galvanized steel for maximum corrosion resistance. The chassis shall consist of the following components: Vibration isolated compressor; rifled copper tubed evaporator and condenser coils with high efficiency raised lance aluminum plate fins mechanically expanded to the tubes for maximum heat transfer; and a capillary restrictor type refrigerant metering device. Coils shall be factory tested at 600 psig. A positive-closing, fresh air damper (72 CFM) may be located within the chassis to provide fresh air during fan operation. The evaporator fan motor shall be a two-speed, totally enclosed and permanently lubricated fan motor. It must be positioned on the indoor side of the bulkhead. The indoor blower fan shall be a forwardcurved tangential design to provide even airflow across the evaporator coil. During the cooling cycle: The compressor, the outdoor fan motor and the indoor fan motor shall be energized. Condensation accumulated on the evaporator coil shall be drained into the outdoor section where it is to be picked up by the condenser fan/slinger ring and evaporated against the outdoor coil. In the cool mode, the compressor will cut in if the space temperature is at least 1 F above the thermostat set point and will cut out when the space temperature is approximately 2 F below set point, subject to timing protections. During the heating cycle: Hydronic Heat Control will call for heat when the space temperature is 1 F lower than the set point. The control will cease its call when the space temperature is 3 F or higher than set point. Only the indoor fan motor is energized. The outdoor condenser fan motor and compressor shall not be energized. Continuous or Fan Cycle setting: Continuous Fan - Fan runs continuously at preselected Hi or Lo Speed. Fan Cycling - Runs the Fan only with a demand for Heating or Cooling. Airflow system shall include separate fan motors for the condenser and evaporator sections. The condenser fan motor shall be a single-speed, totally enclosed, permanently lubricated fan motor. Condenser fan shall be propeller-type with a slinger ring and shall be constructed of aluminum. 45

48 Performance Specifications (cont.) Optional Back Up Electric Heat Heater shall be open wire type with quick response and high limit cutout. Heaters shall be sized to meet heating requirements as shown on the schedule. Electric resistance heaters must be placed behind the indoor evaporator coil and must not be visible through the indoor discharge grille. When the heater cuts out the indoor fan continues to run for 15 seconds at the set speed, regardless of On or Off mode. After 15 seconds the fan will stop running if unit is in Off mode, else the fan operation will depend on Fan. Hydronic Heat When the control is in heat mode and calling for heat, the indoor fan shall not turn on until the Aquastat sensor closes. If at any time while the unit is in heat mode the Aquastat sensor opens, the indoor fan shall turn off immediately. Control will check if the Aquastat sensor is closed for 2 seconds before resuming indoor fan operation. Hydronic with Back Up Electric heat Upon the call for heating and thereafter the Aquastat sensor temperature will be monitored. A trend in Aquastat sensor Temperature shall determine which form of heat is to be used. If during the 90 seconds that Hydronic is the heat source and the Aquastat sensor is above 90 F then Hydronic is the heat source. If during this 90 seconds, the temperature of the Aquastat sensor is below 90 F then Electric is the heat source. The hydronic valve is opened for 90 seconds. After 90 seconds whether Hydronic or Electric provides the heating is determined by the following: If Aquastat sensor temperature is less than 90 F, Electric provides the heat. If Aquastat sensor temperature is greater than 90 F, Hydronic provides the heat. Control module The PTAC Control module is used to control a PTAC unit that includes both an integral air conditioner and a source of heat. The Digital Control is operated with a Touchpad, IR Remote or 24 volt, Wall Mounted Thermostat. Room freeze protection: When the unit senses temperatures of 50 F or lower in an unoccupied room, the heat mode is automatically initiated to prevent freezing. The outdoor fan and compressor are stopped to help prevent coil freeze. Compressor protection: The life of the compressor is extended through built in protection logic such as: High temperature protection if the compressor temperature exceeds 154 F Minimum run time Minimum off time Random restart after a power outage Low ambient lockout when the outdoor air temperature falls below 35 F Digital Control: Shall have solid state digital control operated via a unit mounted touchpad, handheld infra-red or remote wall mounted thermostat. Shall include space temperature control and unit ON or OFF, and the following: Cooling Compressor and Outdoor fan, Indoor fan HI, LOW, CONSTANT or FAN CYCLE. Heating Hydronic Valve or Intermediate Electric Heat, Indoor fan HI, LOW, CONSTANT or FAN CYCLE. 46

49 Performance Specifications (cont.) Inputs and outputs The PTAC control module offers the following inputs: 1. Indoor Coil Sensor (ICS) 2. Indoor Air Sensor (IAS) 3. Outdoor Air Sensor (OAS) 4. Inputs from Remote Thermostat (R, B, G, Y, W) 5. Heat Fan Lock Out Sensor (Aquastat) 6. Power Supply, 24Vac The PTAC control module offers the following outputs: 1. Compressor Output (COM) 2. Outdoor Fan (FAN) 3. Indoor Fan, Fan cycle or Fan Continuous and Blower Hi or Blower Lo shall be incorporated to allow either continuous or automatic fan cycle operation at the selected fan speed. When choosing automatic fan cycle operation, the fan shall be energized only when the compressor or heaters are energized. 4. Hydronic Valve (HYV) Wall Sleeve Shall be entirely constructed of galvanized, heavy-gauge steel with an off-white powder paint corrosion resistant finish. Unpainted, galvanized steel wall sleeves with or without rust inhibiting spray are not acceptable. Wall sleeves with ordinary enamel finish are not acceptable. Wall sleeves shall be installed through the wall as shown on plans and shall have factory provisions for use of appropriate fastening devices to secure sleeve to the wall. In no event shall fasteners be installed through the basepan in the bottom of the wall sleeve. Outside Air Louvers Shall be (stamped) (architectural) anodized aluminum as shown on plans. Louver shall be (finished natural) (painted) as shown on the schedule. Louvers shall be easily installed from the inside of the building after the enclosure/wall sleeve has been installed. Special field fabricated louvers must be approved by the PTAC manufacturer as to free area and air circulation requirements. Room Enclosure Shall be flat top, wrap-around design with a heavygauge galvanized steel front panel that is coated with a baked on, corrosion resistant finish. Room enclosures with ordinary enamel finish are not acceptable. Discharge grilles shall be tamper-proof. The control access door shall be mounted on the right-hand side. Fresh Air Damper A positive closing automatic fresh air damper must be located within the chassis to provide 72 CFM fresh air during fan operation. Filtration Room side return air shall be completely filtered through a permanent, washable polypropylene mesh filter. Foam type filters are not acceptable. Filter must be a UL listed class II, 38% average arrestance efficiency (ASHRAE test) air filter with low resistance to airflow (0.02 w.g. at 300 CFM) and high dust holding capacity of 55 grams. 47

50 Start Up and Maintenance START UP CHECKLIST Note: Units are to be installed and checked for proper function by qualified service personnel ONLY. Check the following: Unit is installed in compliance with all codes and ordinances. Circuit breakers and receptacles are correct. Filter clean and in place. All panels in place. Condenser coil inlet and outlet free of obstructions, and is sealed to louver. Unit is properly sealed in sleeve. Evaporator air inlet and outlet is free from obstructions and properly sealed. Smoke and odor can occur on initial use of the heating element due to processing residue and/or oil on the element. Leave the area serviced by the unit until it is ventilated of the smoke and odor by opening doors and windows. Control operation OK. Owner or operator instructed on control operation and routine maintenance. ROUTINE MAINTENANCE Keep air intake filter clean. A dirty filter reduces the efficiency of the system and can cause erratic performance of controls. It can also result in damage to the heating element and compressor. The unit is provided with a washable filter that can be cleaned with soap and water. Inspect and clean the filter at least once a month or more often as conditions dictate. Replace as necessary with a factory approved filter. Coils should be inspected periodically for buildup of lint, dirt, leaves, other debris, and bent fins. Clean coils with a soft brush and compressed air or vacuum. Do NOT use sharp objects to clean coils. The fan motors are permanently lubricated and do not require re-oiling. In areas of heavy snow and ice accumulation, snow and ice should not be permitted to accumulate against the unit. As soon as practical after such inclement weather, clean snow and ice from around the unit and as much as possible from the filters of the unit. If unit is installed over the winter, be sure that the fan turns freely before turning it on. Work area clean and free of debris. Operate unit 20 minutes. 48

51 Typical Warranty LIMITED ONE YEAR PARTS AND LABOR PLUS ADDITIONAL 2ND THROUGH 5TH YEAR SEALED SYSTEM PART ONLY WARRANTY COVERING ISLANDAIRE THRU- WALL AIR CONDITIONERS & HEAT PUMPS THIS WARRANTY APPLIES TO THE AIR CONDITIONER UNIT ( THE UNIT ) THAT IS THE SUBJECT OF THIS SALE AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED. THIS WARRANTY DOES NOT APPLY TO ANY ACCESSORY THAT IS NOT A PART OF THE UNIT AS SHIPPED BY ISLAND- AIRE. THIS WARRANTY APPLIES ONLY TO THE ORIGINAL EQUIPMENT AT THE ORIGINAL INSTAL- LATION LOCATION. PROOF OF PROPER, ROUTINE MAINTENANCE WILL BE REQUIRED IN ORDER TO MAINTAIN EXTENDED WARRANTY. ISLANDAIRE the Company of St. James, New York warrants the unit free from defects in material and workmanship under normal use and service, for the twelve-month period following the date of installation. WARRANTY Coverage includes repair or replacement, at the Company s option, of any defective parts that fail under normal use for the first 365 days after the date of equipment installation* under the terms, conditions and limitations of the warranty. All defective parts shall be returned within thirty days after removal to the Company at such locations as the Company may designate. Islandaire reserves the right to impose an inspection charge and/or a restocking fee in cases where parts or equipment have been improperly returned as defective and/or as being in warranty. A warranty part can only be replaced one time over the duration of the warranty period. WARRANTY coverage also includes Labor Charges on all covered repairs performed by an Islandaire Authorized Service Company in accordance with the terms, conditions and limitations of the warranty. Extra charges such as emergency calls, nuisance calls, mileage, overtime or shipping are not covered. Check, test, and start by an experienced person are responsibility of the installing contractor. Check, test and start shall include physically operating each unit in both cooling and heating modes and correcting any minor deficiencies noted. On occasion, wires may become disconnected or components may be dislodged from their bases as a result of rough handling during transport, causing improper functioning of the unit. Correction of these minor conditions is part of Check, Test, and Start. WARRANTY Coverage of the Compressor and parts only shall continue from the 2nd through 5th year from date of equipment installation*. Labor is not included. ADDITIONAL SEALED SYSTEM WARRANTY Coverage includes replacement of any part of the sealed refrigeration system, including the compressor, evaporator, condenser and connecting tubing, that proves to be defective from the 2nd through 5th Year from the date of installation. Labor is not included. Freight charges for replacement and return of defective warranty parts will be the Company s responsibility. IN NO EVENT SHALL THE COMPANY S MAXIMUM LIABILITY EXCEED THE SELLING PRICE OF THE UNIT CLAIMED TO BE DEFECTIVE. As a condition precedent to the Company s obligation under this WARRANTY, it shall be the obligation of the Owner during the designated WARRANTY period to furnish the following information to the Company within three days after unit failure: 1) Model Number and Serial Number of unit involved, 2) A full and complete description of the problem encountered with the unit. Upon receipt of the above information, the Company will reply to the Owner within a period not to exceed fifteen working days, with a description of the action the Company desires to take. Contact the Islandaire Customer Service Department at To validate this WARRANTY, you must complete the registration information below and return the preaddressed card to Islandaire within seven days of equipment installation. The actual warranty type for your equipment is stated on the original Islandaire invoice for said equipment. Proof of installation date is required. *Please be advised, where no Warranty Registration Card has been returned, the original date of invoice of the equipment shall become the start date of the warranty period. 49

52 Ask your salesman about our DR. PTAC option! * *100% conditioned fresh air NEW! Vertical Unit Available For New Construction and as Replacement for: GE AZ Vertical, Friedrich Vert-I-Pak and First Company SPX THE C U RE FOR UN COND I T IONED MAK E-U P AIR T M 500 Middle Country Road St. James, NY sales@islandaire.com Ph: Fax: Locally Represented By: