Islandaire EZ 42 series Engineering Manual
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Islandaire EZ 42 series Engineering Manual

42” w x 16”h ptac/pthp
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See also: Engineer's Manual , Operation & Installation Manual
EZ Series 42 & EZ Series DR (DR. PTAC option)
42" W x 16"H PTAC/PTHP
Perfect fit for Replacing Existing 42"X16" Units
and for New Construction Projects
Engineering Manual
M A N U FA C T U R E R O F Q U A L I T Y A I R C O N D I T I O N I N G A N D H E AT I N G P R O D U C T S
1
6140207 Rev. D

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Summary of Contents for Islandaire EZ 42 series

  • Page 1 EZ Series 42 & EZ Series DR (DR. PTAC option) 42” W x 16”H PTAC/PTHP Perfect fit for Replacing Existing 42”X16” Units and for New Construction Projects Engineering Manual M A N U FA C T U R E R O F Q U A L I T Y A I R C O N D I T I O N I N G A N D H E AT I N G P R O D U C T S 6140207 Rev.

  • Page 2: Table Of Contents

    Control Board Physical Features .......40 Temperature Limiting ........41 INSTALLATION INSTRUCTIONS Diagnostic Display Error Codes ......42 Clearances and Projections ........15 Selecting a Location ..........16 Preparing the Wall Opening .......17 Islandaire reserves the right to make changes in design and construction at any time without notice.

  • Page 3: Introduction

    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...

  • Page 4: Applications

    PTAC units in an existing Retrofit/ Replacement building, Islandaire will meet your needs. Islandaire PTAC units are engineered to fit perfectly New Construction within most existing wall sleeves, thereby reducing installation time and expense. There is no time wasted...

  • Page 5: Application Considerations

    Applications (cont.) Application Guaranteed Quality Each Islandaire unit is designed to operate quietly and Considerations efficiently and is backed by the best warranty program It is important for air conditioning systems to be available. Standard warranty is one year parts and labor properly sized for each application in order to achieve including five year compressor part only warranty or...

  • Page 6: Product Overview

    Vibration isolators on the rotary compressor keep it All Islandaire PTAC units have special corrosion running smoothly and quietly. The unit bulkhead is protection that can help dramatically extend the life of fully insulated to decrease outdoor sound transmission.

  • Page 7: Product Features And Benefits

    Product Overview Islandaire manufactures the EZ42 loaded with standard features that other manufacturers often consider optional. VENTURI SHROUD SLINGER FAN BLADE TANGENTIAL BLOWER WHEEL DISCHARGE GRILLE WALL SLEEVE RETURN AIR FILTERS CHASSIS AUTO REMOVABLE FRONT PANEL DIGITAL TOUCHPAD CONTROL /...

  • Page 8: Identification

    Chassis Features and Benefits Slide Out Chassis – and quiet operation See page 27 for chassis installation instructions Wall Sleeve – Part Number 2400450- for maximum scratch, dent and corrosion resistance. See pages 17-18 for wall sleeve installation instructions Exterior Louver/Grilles – Part Number 6070 Part Number 6070264 See pages 21-24 for exterior grille installation instructions...

  • Page 9: Tangential Blower Wheel

    Chassis Features and Benefits (cont.) Tangential Blower Wheel – Slinger Fan – Venturi Shroud Return Air Filters – (2 per) Part Number 6080067 See page 30 for maintenance information Fresh Air Vent – room when indoor fan is operating See page 29 for fresh air vent information...

  • Page 10: Model Nomenclature Ez42

    FUNCTIONAL OPTIONS A- MANUAL FRESH AIR DAMPER (STANDARD) EZ - COOLING CHASSIS B- MOTORIZED FRESH AIR DAMPER (OPTIONAL) MODEL TYPE 42 - ISLANDAIRE 42 X 16 COOLING CAPACITY 07 - 7,000 BTU 09 - 9,000 BTU POWER MANAGEMENT OPTIONS 12 - 12,000 BTU A- NONE C- ENERGY MGT.

  • Page 11: Performance Data Ez42

    Performance Data Performance Data for EZ Series Heating options HEATING OPTION WATTAG Electrical LINE VOLTAGE MAXIMUM AMPERAGE WALL SOCKET CONFIGURATION RECEPTACLE NUMBER ELECTRICAL HEAT OPTIONS...

  • Page 12: Model Nomenclature Ezdr

    EZ Series DR Model Nomenclature Please review the nomenclature/model number breakdown below Control choices include a unit mounted digital control; multiple for the EZ Series DR options. wired wall mounted heating/cooling thermostats and a wireless wall thermostat, with occupancy sensor control. 7,500;...

  • Page 13: Performance Data Ezdr

    Performance Data Performance Data for EZDR Series Heating options HEATING OPTION WATTAG Electrical LINE VOLTAGE MAXIMUM AMPERAGE WALL SOCKET CONFIGURATION RECEPTACLE NUMBER ELECTRICAL HEAT OPTIONS...

  • Page 14: Product Information Ezdr

    Product information The Dr. PTAC system is an add on system to our standard PTAC unit to provide conditioned makeup air into a space thru the PTAC unit by providing 55 CFM of outdoor air 24/7 by forced fan and cycling dehumidifier compressor based on outdoor relative humidity levels.

  • Page 15: Dimensional Drawings

    Dimensional drawings Units must be installed in accordance with all applicable codes. 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. Ensure that drapes, bed, bedspread, furniture, etc. DO NOT block either return or discharge air openings.

  • Page 16: Options And Accessories

    Options and Accessories Hard Wire kit – Part Number 6040756 See page 30 for electrical information Remote Control – Part Number 6040694 Optional 2 Stage Heater – Available on 208/230 Volt Units With Remote Thermostats Condensate Drain Kit – Part Number 4090661 or internal drain connection See pages 19-20 for drain kit installation instructions Subbase –...

  • Page 17: Clearances And Projections

    Clearances and Projections Minimum Projection Into room Figure 2 Minimum Projection Into Room The wall sleeve will need to be installed so that the sleeve OUTSIDE WALL ROOM SIDE projects into the room a minimum amount according to the table below. 1/4”...

  • Page 18: Installation Instructions

    Installation Instructions Installation of the PTAC unit involves four main components and various accessory components. The main components are the wall sleeve, chassis, rear grille, and decorative front. The accessory components are subbase, condensate drain, duct kits, and hardwire cable. Figure 5 Main Installation Components FRONT PANEL...

  • Page 19: Preparing The Wall Opening

    Wall Sleeve Installation Instructions Framing Preparing the Wall Proper building practices must be used when construct- Opening ing a wall opening to support a PTAC wall sleeve and chassis. Units must be installed in accordance with all of unit is determined, create a wall opening to applicable codes.

  • Page 20: Wall Sleeve Installation

    Wall Sleeve Installation Instructions (cont.) Figure 8 Wall Sleeve Installation Wall Sleeve Installation After the wall opening is checked for location, size, and clearances, proceed to wall sleeve installation. WALL OPENING 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.

  • Page 21: Condensate Drain Kit

    Condensate Drain Kit Condensate Drain Kit NOTE Part Number 4090661 This drain kit serves only as a link An indoor/outdoor drain kit is available as an accessory between the unit and field-supplied item. When a drain kit is to be installed, do so before condensate drain system.
  • Page 22 Condensate Drain Kit (cont.) Figure 13 Internal Drain Location Internal Drain Installation DETERMINE LOCATION OF INTERNAL DRAIN. Part Number 6140165 DRILL MOUNTING HOLES ACCORDING TO TEMPLATE 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.

  • Page 23: Stamped Rear Grille

    Rear Grille Installation Instructions Figure 16 Standard Grille Fastener Stamped Rear Grille Part Number 6070264 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 STANDARD GRILLE installing the chassis.

  • Page 24: Architectural Rear Grille

    Rear Grille Installation Instructions (cont.) Architectural Rear Grille Part Number 6070 The rear grille directs condenser airflow and provides a Figure 20 Threaded Stud Installation protective barrier for the outdoor coil. Either the approved Standard or Architectural grille must be installed before installing the chassis.
  • Page 25 Rear Grille Installation Instructions (cont.) Part Supplied By Others Figure 22 Wall Sleeve Dimensions and Mounting Hole Locations for Installation of Exterior Louver Grille by Others TYPICAL HOLE...
  • Page 26 Rear Grille Installation Instructions (cont.) Part Supplied By Others Figure 23 Wall Sleeve Dimensions and Mounting Stud Locations for Installation of Exterior Louver Grille by Others...

  • Page 27: Subbase Assembly And Installation

    Subbase Assembly & Installation Figure 24 Assembled Subbase Subbase Assembly & Installation Electrical Subbase Assembly An electrical Subbase provides a convenient location for unit wiring to be connected to building wiring. It also provides support for the indoor portion of the unit. Subbase Selection Select a subbase according to the power requirements of the unit.
  • Page 28 Subbase Assembly & Installation (cont.) Figure 26 Subbase Nomenclature EZSB SUBBASE SELECTION CHART TYPE MODEL TYPE HEIGHT ELECTRICAL MODULE REPLACEMENT KIT SWITCH/CIRCUIT BREAKER KIT FUSE KIT Water Source LOW VOLTAGE CONNECTIONS KIT SUBBASE PARTS LIST ITEM DESCRIPTION BASE FRAME RH SIDE EXTENSION LH SIDE EXTENSION RECEPTACLE SUPPORT REAR COVER PANEL...

  • Page 29: Chassis Installation

    Chassis Installation Figure 27 Chassis Installation 1. Remove the cabinet front from the chassis as described in Front Removal. CHASSIS WALL SLEEVE EXTERIOR WALL 2. Insert the chassis into the wall sleeve. 3. Slide the chassis into the wall sleeve until the chassis flanges contact the front edge of the wall sleeve.

  • Page 30: Front Cover Installation

    Front Cover Installation & Removal Figure 29 Front Cover Tabs Front Cover Installation Use the following procedure to install the front panel onto the chassis: 1. Attach the top of the front cover onto the top edge of the chassis. 2.

  • Page 31: Fresh Air Vent

    Fresh Air Vent Fresh Air Vent Figure 32 Lateral Duct Kit The vent control allows outside air to be drawn into the conditioned area. This outside air can provide ventilation when the blower is operating, but it will increase the heating or cooling load and operating costs.

  • Page 32: Maintenance

    Maintenance Air Intake Filters Figure 34 Filter Removal (2 per) Part Number 6080067 When air conditioner is operating, indoor air is filtered and refiltered continuously trapping AIR INTAKE FILTERS airborne dirt and dust in the washable filter. The air intake filters are 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.

  • Page 33: Information For Heat Pump Units

    The heat position. When the cooling controls are activated, the and humidity is released to the outdoors. Islandaire’s valve automatically reverses to the cooling position. high efficiency design saves energy and reduces cooling NOTE: Be sure to connect reversing valve wiring to costs.

  • Page 34: Electrical Installation

    Electrical Installation HARDWIRE KIT Figure 35 Hardwire Kit Part Number 6040756 Cord connection to a wall socket is not permitted for 265 volt units. All 265-volt units must be hard wired using the hard wire kit or make use of the plug-in receptacle in the standard subbase.

  • Page 35: Wiring Diagram-Standard Model

    Wiring Diagram Figure 37 Wiring Diagram HYDRONIC HEAT PUMP ELECTRIC HEAT GAS HEAT FREEZE PROT RESTART REMOTE WSHP...

  • Page 36: System Controls And Management

    System Controls and Management USER INTERFACES The Islandaire EZ42 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 Digital Control Panel...

  • Page 37: System Management Software

    System Controls and Management (cont.) SYSTEM MANAGEMENT SOFTWARE The Islandaire EZ42 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.
  • Page 38 Digital Control Panel Control panel Figure 41 Digital Control Panel Use the control panel to power on/off, select mode, select fan speed, and adjust the set temperature. Auto Restart Feature AUTO To prevent multiple units from powering up simultaneously after a power outage, there will Memory Recall Feature Display The display shows the room temperature (return air...

  • Page 39: Digital Control Panel

    Digital Control Panel Fan Speed Control - Freeze Protection Feature Low, High, and Auto If the temperature in a vacant room falls below 50°F (4.4°C) the freeze prevention thermostat The fan speed settings are adjusted with the Fan automatically starts the heating cycle to prevent button.

  • Page 40: Remote Wall Mounted Thermostats

    Remote Thermostats Remote Wall Mounted Thermostats Remote Thermostat Control The EZ42 can be controlled by any remote electronic thermostat that can interface with RCBWYG terminals. Used with a wireless wall thermostat, the RCN A Wiring harness is provided with conductors for communicates with the thermostat using unlicensed all applications (Heat Cool, Heat Pump, Multispeed 900 MHz, radio frequency energy.

  • Page 41: Remote Thermostat Interface

    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.

  • Page 42: Control Board Physical Features

    Control Board Figure 45 Control Board Physical Featrures Fuse A TRANS G IR PLUG S L2(N2) An easily replaceable B 24 VAC – ACCESSORY H DISPLAY L2(N1) 6.3 Amp 250V fuse ODA- OUTDOOR AIR SENSOR C REMOTE THERMOSTAT U L2(N3) conveniently located on IDC –...

  • Page 43: Temperature Limiting

    Temperature Limiting Set Temperature Limiting Figure 46 Display - Temp Limit Code Setting customized temperature setpoint ranges can & save energy costs by limiting extreme settings. Warm AUTO To enter the Setpoint setup mode, hold down the FAN +WARM buttons for 5 seconds. While the unit is in this mode, you can now scroll through a series of codes (R1, R2, R3, R4, etc.) to Available Setpoint Ranges...

  • Page 44: Diagnostic Display Error Codes

    Error Codes Diagnostic & Error Codes Figure 47 Display - Error Code 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.

  • Page 45: Performance Specifications

    Heating: 6,000 to 14,100 Btuh Heat Pump Outdoor grille shall resist corrosion, breakage 6,400 to 17,000 Btuh Electric and match the color specified on drawing Islandaire Model Numbers: schedule and specifications. C. Subbase: 1.01 SYSTEM DESCRIPTION Subbase will support the wall sleeve when Single piece, thru-the-wall electrically controlled it extends into the room more than 4 inches.
  • Page 46 Performance Specifications (cont.) 2.01 EQUIPMENT A. General: C. Airflow System: Factory-assembled, single-piece heating and/or The airflow system shall consist of one cooling unit. Contained within the unit enclosure permanent split-capacitor, direct-drive shall be compressor, coils, fans and fan motor, permanently lubricated, two-speed fan motor heating means, controls, all wiring and piping, for the indoor and outdoor fans.
  • Page 47 Performance Specifications (cont.) G. Front Panel (supplied with chassis): B. Continuous Fan Front panel shall be constructed of a polymer All standard models shall have a continuous/ fan material to resist breakage and corrosion. It shall cycle selector switch located behind the front have a front louvered surface with integrated air panel.
  • Page 48 Performance Specifications (cont.) 4.0.1 HEAT PUMP OPERATION Heat pump units shall have the selected room 40°F. During defrosting, both compressor and temperature maintained by cycling either in the heat the outdoor fan are turned off. The indoor fan pump mode or electric strip heat. A heat pump unit with will run at its set speed.
  • Page 49 19 security door shall include two matching keys in. of flexible conduit (for a perfect fit to the and keys shall be common to all Islandaire unit) and all mating connections. Security Door kits. D. Hardwire kit shall provide a permanent connection to the unit.
  • Page 50 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 ISLANDAIRE THIS WARRANTY APPLIES ONLY TO THE ORIGINAL EQUIPMENT AT THE ORIGINAL INSTALLATION LOCATION. PROOF OF PROPER, ROUTINE MAINTENANCE WILL BE REQUIRED IN ORDER TO MAINTAIN EXTENDED WARRANTY.
  • Page 51 Original Model Sleeve Sleeve Original Model Sleeve Sleeve Height Width Model Height Width Model Keeprite® Amana® PT 42 x 16 Series Climette 18 5/16 PB 26 x 16 Series Seasonall 18 5/16 American Air Filter® Lennox® Enersaver Type 16 37 1/2 PTEIA Series 22 1/4 Type 16 Hydronic...
  • Page 52 T H E C U R E F O R U N C O N D I T I O N E D M A K E - U P A I R 22 Research Way, East Setauket, NY 11733 • 1-800-886-2759 e-mail: sales@islandaire.com • www.islandaire.com Ph: 631-471-2900 • Fax: 631-471-2913...

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Ez dr series

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