CAF16O SERIES CA45O SERIES

C O M I T A L E N A T I O N A L I N C. CAF16O SERIES CA45O SERIES Engineering/Operation & Installation Instructions 1683 B Winchester Road, Bensalem, PA 19020 Phone: 215-244-9650 Fax: 215-244-9679 Email: sales@comitalenational.com www.comitalenational.com Original Equipment Manufacturer of Custom Packaged Terminal Air Conditioners and National H.V.A.C. Parts Distributor

Table of Contents Table of Contents................................................................. Engineering Information - Specifications........................................... Product Code Sheet................................................................. Replacement Chart.............................................................. 7 Receiving Equipment.............................................................. 8 Installation Instructions -Louver Frame/Intake Collar................................................. 8 -Intake Collar............................................................. 9 -Wall Gaurd Flange......................................................... 10 -Wall Sleeve Extension..................................................... 11 -Subbase................................................................ 12 -Hydronic Pipeing......................................................... 13 -Room Cabinet/Wall Sleeve............................................... 14 -Chassis.............................................................. Room Cabinet/Wall Sleeve & Outdoor Air Louver Dimensional Data -Permanently Connected, Long Cabinet, Hydronic}with Subbase................... -Permanently Connected, Short Cabinet, Electric/Heat Pump}with Subbase......... -Extruded Architectural Louvers........................................... -Optional Stamped Flange Louvers........................................ Equipment Start-up.................................................................. 20 Scheduled Maintenance....................................................... 21 Recommended Spare Parts......................................................... 21 Troubleshooting Chart............................................................ 22 Warranty - Standard Limited Warranty..................................... 23 Warranty - Optional Four Year Extended Warranty................................... 24-25 PTAC Check, Test and Start Worksheet............................................... 2 3-5 6 15 16 17 18 19 26 Page 2

Integral Style - Type CAF16O Series Replaces Original American Air Filter, Singer and McQuay Series 16, ENR and ENH Cooling and Heatpump Chassis 19 DISCHARGE AREA 5 14 1 / 2 14 7 / 8 34 1 / 2 Model Numbers 07 09 12 15 18 Voltage 115 208 230 277 115 208 230 277 115 208 230 277 208 230 277 208 230 277 COOLING (HI-FAN SPEED) 1 Total Capacity (BTUH) 7300 7300 7300 7300 9000 9000 9000 9000 11800 11800 11800 11800 14939 14939 14939 17361 17361 17361 Full Load Amps 6.8 3.6 3.2 2.7 8.7 4.6 4.1 3.9 11.4 6.4 5.8 4.8 7.6 6.9 6.0 9.2 8.5 7.4 Watts Cooling 740 740 740 740 930 930 930 930 1240 1240 1240 1240 1570 1570 1570 1890 1890 1890 EER (BTUH/Watt) 9.8 9.8 9.8 9.8 9.7 9.7 9.7 9.7 9.4 9.4 9.4 9.4 9.5 9.5 9.5 9.1 9.1 9.1 HEATING Capacity (BTUH) 8400 8400 8400 8400 10200 10200 10200 10200 13300 13300 13300 13300 15500 15500 15500 18100 18100 18100 Watts Heating N/A 680 680 680 N/A 920 920 920 N/A 1200 1200 1200 1350 1350 1350 1480 1480 1480 COP (Coefficient of Performance) N/A 3.6 3.6 3.6 N/A 3.2 3.2 3.2 N/A 3.2 3.2 3.2 3.3 3.3 3.3 3.5 3.5 3.5 HYDRONIC HEATING Hot Water (BTUH) 2 12,600 12,600 12,600 14,300 14,300 Steam (BTUH) 3 12,600 12,600 12,600 18,900 18,900 KILOWATTS 115 208 230 277 2.5 2.5 19.6 14.4 19.6 14.4 19.6 14.4 14.4 14.4 3.0 3.0 15.3 12.5 15.3 12.5 15.3 12.5 15.3 12.5 15.3 12.5 3.3 18.3 18.3 18.3 18.3 18.3 4.0 4.0 19.6 16.1 19.6 16.1 19.6 16.1 19.6 16.1 19.6 16.1 4.3 23.1 23.1 23.1 5.3 5.3 25.2 20.8 25.2 20.8 25.2 20.8 COOLING/HEAT PUMP CHASSIS W/O Auxiliary Heating 15 10 10 10 15 10 10 10 15 15 15 15 15 15 15 20 20 15 With Auxiliary Heating 2.5 KW to 3.0 KW 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 3.3 KW to 4.0 KW 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 4.3 KW to 5.3 KW 30 35 30 30 35 30 30 35 30 Steam or Hot Water 15 10 10 10 15 10 10 10 15 15 15 15 15 15 15 20 20 15 1 2 3 80F DB/67F WB air entering evaporator; 95F DB/75F WB air entering condenser per ARI Std. 310-70. 200F EWT/180F LWT at 2 GPM 70F EAT. 2 PSI 70F EAT saturated steam. CNI reserves the right to modify specifications without prior notice in its efforts to improve product quality. Page 3

Integral Style - Type CA45O Series Replaces Original American Standard, McQuay 45 and Carteret Type 45 Cooling and Heatpump Chassis Cooling and Heatpump Chassis 19 DISCHARGE AREA 5 14 1 / 2 14 7 / 8 34 1 / 2 A lower cost alternative to all season comfort conditioning. Model Numbers 07 09 12 15 18 Voltage 115 208 230 277 115 208 230 277 115 208 230 277 208 230 277 208 230 277 COOLING (HI-FAN SPEED) 1 Total Capacity (BTUH) 7300 7300 7300 7300 9000 9000 9000 9000 11800 11800 11800 11800 14939 14939 14939 17361 17361 17361 Full Load Amps 6.8 3.6 3.2 2.7 8.7 4.6 4.1 3.9 11.4 6.4 5.8 4.8 7.6 6.9 6.0 9.2 8.5 7.4 Watts Cooling 740 740 740 740 930 930 930 930 1240 1240 1240 1240 1570 1570 1570 1890 1890 1890 EER (BTUH/Watt) 9.8 9.8 9.8 9.8 9.7 9.7 9.7 9.7 9.4 9.4 9.4 9.4 9.5 9.5 9.5 9.1 9.1 9.1 HEATING Capacity (BTUH) 8400 8400 8400 8400 10200 10200 10200 10200 13300 13300 13300 13300 15500 15500 15500 18100 18100 18100 Watts Heating N/A 680 680 680 N/A 920 920 920 N/A 1200 1200 1200 1350 1350 1350 1480 1480 1480 COP (Coefficient of Performance) N/A 3.6 3.6 3.6 N/A 3.2 3.2 3.2 N/A 3.2 3.2 3.2 3.3 3.3 3.3 3.5 3.5 3.5 HYDRONIC HEATING Hot Water (BTUH) 2 12,600 12,600 12,600 14,300 14,300 Steam (BTUH) 3 12,600 12,600 12,600 18,900 18,900 KILOWATTS 115 208 230 277 2.5 2.5 19.6 14.4 19.6 14.4 19.6 14.4 14.4 14.4 3.0 3.0 15.3 12.5 15.3 12.5 15.3 12.5 15.3 12.5 15.3 12.5 3.3 18.3 18.3 18.3 18.3 18.3 4.0 4.0 19.6 16.1 19.6 16.1 19.6 16.1 19.6 16.1 19.6 16.1 4.3 23.1 23.1 23.1 5.3 5.3 25.2 20.8 25.2 20.8 25.2 20.8 COOLING/HEAT PUMP CHASSIS W/O Auxiliary Heating 15 10 10 10 15 10 10 10 15 15 15 15 15 15 15 20 20 15 With Auxiliary Heating 2.5 KW to 3.0 KW 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 3.3 KW to 4.0 KW 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 4.3 KW to 5.3 KW 30 35 30 30 35 30 30 35 30 Steam or Hot Water 15 10 10 10 15 10 10 10 15 15 15 15 15 15 15 20 20 15 1 80F DB/67F WB air entering evaporator; 95F DB/75F WB air entering condenser per ARI Std. 310-70. 2 200F EWT/180F LWT at 2 GPM 70F EAT. 3 2 PSI 70F EAT saturated steam. CNI reserves the right to modify specifications without prior notice in its efforts to improve product quality. Page 4

CAF16O & CA45O Series Engineering/Specifications COOLING CHASSIS The cooling chassis shall contain the complete refrigeration system consisting of compressor, condenser, evaporator, single fan motor, controls and space for inclusion of electric heating elements. It shall be 100% factory run tested prior to shipment from the factory. The chassis sheet metal shall only be a minimum of 18 gauge G-90 grade galvanized, zinc phosphatized steel. The chassis base pan shall be a minimum of 16 gauge galvanized steel. The evaporator and condenser coil construction shall be copper tubes with aluminum ripple fans and mounted for accessible cleaning. Condensate disposal shall be accomplished by atomization and entrainment of water particles in the condenser air stream with evaporation on the condenser coil. Slinger rings and propeller type are not acceptable. The refrigeration circuit shall be precharged and shall utilize an internally and external spring mounted hermettic compressor, PSC motor with automatic reset overload. Compressor shall be equipped with suction and discharge mufflers. Compressor capacitor shall be located in control box only. Refrigerant metering shall be accomplished by automatic expansion valve. Capillary tubes are not acceptable. The unit shall operate at capacity to 35 F outdoor, with no frosting of the evaporator, short cycling of the compressor or liquid slugging. A hot gas bypass valve shall be used to protect the evaporator coil from frosting due to clogged filter, or low air flow. Factory installed low intensity nichrome electric heating coils shall be mounted in the outlet air stream of the evaporator fan and ahead of the evaporator coil. Automatic reset thermal cut-off shall protect the element from overheating. Heat requirement of 4 KW or more shall be two staged to operate with the thermostat. One row serpentine coil, preformed tubing and normally opened motorized two-position control valve shall be provided for field installation and piping to hot water or steam service. Left hand supply/return connections. Control valve shall be two-way type and power lead shall plug into the control box. The fan motor shall be PSC, two-speed, double extended shaft. There shall be one totally enclosed motor driving both fan wheels. Two motor applications are not acceptable. The evaporator fan wheel shall be formed metal single inlet centrifugal type. The condenser fan wheel shall be aluminum formed single inlet centrifugal type. Plastic or polymer are not acceptable. ROOM CABINET/WALL SLEEVE/FRONT PANEL TThe wall cabinet which houses the cooling chassis shall be of 18 gauge phosphatized steel and finished with two coats of baked textured acrylic enamal. The wall cabinet shall also be insulated top and sided with a closed cell neoprene rubber insulation. The wall cabinet shall be designed for either wall installation or flush floor installation, without a regard for unit voltage. The wall cabinet is provided with extruded aluminum louver finished in a clear anodized. Room cabinet/wall sleeve and front panel color is light beige. Special colors are available, consult factory. The room cabinets/wall sleeves are available in short and long cabinet styles. The 37½'' short cabinet, used for applications that utilize electric resistance or reverse cycle/heat pump heating. The 41½'' long cabinet is used when the hydronic (hot water or steam) heat option is chosen. The discharge ggrill assemblyy and access door are part of the room cabinet/wall sleeve design. TThe discharges grill can be stamped or drop in heavyygauge aluminum discharge ggrill. TThe discharge ggrille is noted both for its strength and appearance. TThe grille is inclined at a fixed angle of 15 from vertical to provide optimum air circulation. Front Panel and Return Grille Options TThe front panel incorporates stamped return air grille. This allows the wall sleeve to be installed at the floor line to accommodate low windows and allows for maximum return air, to reduce static pressure within the room cabinet/ wall sleeve. Subbases The standard subbase is 5'' high and adjustable in depth from 7¼'' to 20⅛'' to accommodate almost any wall thickness. Leveling legs at each front corner provide up to a 1'' adjustment to compensate for uneven floors. The short cabinet subbase has an electrical box for installation of appropriate receptacle (ordered separately). The long cabinet subbase does not include an electrical box or receptacle since they are provided in the wall sleeve left end compartment. Subbases are shipped with each room cabinet wall sleeve. All subbases are heavy-gauge galvanized steel finished with black acrylic enamel finish. CNI reserves the right to modify specifications without prior notice in its efforts to improve product quaility. OPTIONAL The colling/heating chassis can be equipped for a pressurized automatic ventilation air. An outdoor damper can be positioned on the discharge side of the condenser fan to insure a positive supply of ventilation air whenever called for. The damper must close when the unit stops. Outdoor air shall be filtered at all times. CONTROLS The standard controls shall be self contained within the cooling chassis consisting of a manual Idle-Cool-Heat-Hi-Low selection along with a two stage thermostat. Automatic Ventilation can be controlled by a means of a rocker switch at the contol panel. Optional control arrangements are available, consult factory. Page 5

Product Code Sheet (Z in any box = Special) CAF16O C 09 4 - D 1 0 RS Product Code Chassis Type H = Heatpump C = Cooling only Nominal Size 07-7000 BTUH 09-9000 BTUH 12-12000 BTUH 15-15000 BTUH 18-18000 BTUH Electrical Service 3 = 115/60/1 4 = 208/230/60/1 5 = 277/60/1 Design Sequence RS = Rotary Compressor AS = Reciprocating Compressor AZ = Special Control Options 0 = None 1 = Night Set Back 2 = Remote Switching with Night Setback 3= Fan Cycle Switch (Heating Mode) 4= Auxiliary - Permanent Power *Voltage needs to be determined for primary (Hydronic Heat Only) Z = Consult Factory Thermostat Nominal Size 0 = Cooling only, Component Style Chassis 1 = Unit Mounted Manual Changeover 2 = Wall Mounted, Manual Changeover *3 = Unit Mounted Automatic Changeover *4 = Wall Mounted, Automatic Changeover *Not available on HP chassis Heat Source 0 = Cooling only D = Hydronic Heat A = 2.5/3.0 KW B = 3.3/4.0 KW *C = 4.3/5.3 KW *Not available sizes 07 and 09 Z = Specials Outlined in Spec. The Sample unit nomenclature above indicates a C.N.I. colling chassis replacement for a McQuay "PNES" Series or American Air Filter Type "16", 9,000 BTUH, 208-230/60/1, Hydronic heat, unit mounted manual change over controls and no control options. Page 6

C.N.I. Replacement Chart McQuay Description A Design Current Model PNES 3 Current Model Replaces AAF Series 16 ENR/ENH PNES 1 C.N.I. Replacement CAF16O CAF16O CA45O Room Cabinet/Wall Sleeve Power Cord Plug Type Hydronic Valve Retrofit Kit 16" 37½" HP or Electric Heat 16" 41½" Hydronic Heat Sold as Kit including: Cabinet/Wall Sleeve Subbase Outdoor Louver Short Cord 20 Amp (All A Design) Normally Open (Line Voltage) None Required C.N.I. Offers the Same Offered Offered Offered None Required Page 7

Receiving Equipment Before signing the freight bill, carefully examine the units and note any shortages or damages on the freight bill. The purchaser is responsible for filing the necessary claims with the carrier. Concealed damage which was not discovered until after unloading should be reported to the carrier within 15 days after receipt. C.N.I. responsibility ceases upon delivery of material in good order to a carrier. To help avoid concealed damage, the units must be shipped, handled, and stored right side up as clearly marked on the container. If the units must be stored prior to installation, they should be stored within the carton in a clean, dry, protected area. When ready for installation, save the carton and use the carton shell to protect the cabinets until construction, painting, etc., is completed. A complete PTAC unit is normally shipped in two cartons: one carton contains the cabinet/wall sleeve, front panel, louver and subbase; the other carton contains the intergal chassis. The PTAC cabinet/wall sleeve is available in two sizes, 37 1 /2 (952mm) or 41 1 /2 (1054mm) long. This one-piece cabinet/wall sleeve functions as both the wall box as well as the room cabinet once the front panel is in place. Units with hydronic heat always utilize the long cabinet. The hydronic coil is factory mounted to the cabinet/ wall sleeve. The chassis is a completely self-contained, intergal heating/cooling with optional ventilation control. It houses the refrigeration components, air handling components, electric heater (if applicable), and controls. Cabinet/ Wall Sleeve Chassis Electric heat models are available in either size cabinet. Units ordered with either the stamped or the extruded aluminum louver are shipped with the louver factory mounted. Stamped flanged louvers must be field mounted after the room cabinet/ wall sleeve is in place. A single intergal chassis requires less on-site handling during installation and service periods. Installation Instructions Louver Frame/Intake Collar When a louver frame is used, it must be installed prior to the room cabinet/ wall sleeve, and it must be level and square (see Figure 1). If the louver frame is to be installed in a panel wall, install it at the same time as the room cabinet/wall sleeve. 1. Apply caulking compound on the surfaces of the louver frame s four flanges which will come in contact with the wall. Add caulking as required for weather tight seal. Figure 1. Louver frame installation INTAKE COLLAR CABINET/ WALL SLEEVE 2. Place the louver frame in the wall opening from the exterior of the building, and apply firm pressure so that the caulked frame flanges are snug against the exterior of the building. Secure the louver frame to the wall if desired. 3. Secure the louver frame to the wall through the sides and top. Never secure the frame through the bottom as it can cause leaks. 4. Coordinate the remaining instructions with the room cabinet/wall sleeve installation instructions. (Page 14) 5. Drill four (4) 1/8 (3mm) diameter holes through the sides of the wall sleeve and through the flange of the louver frame. Attach the collar with four (4) #8x 3 /8 self-tapping screws provided. Do not drill holes in the bottom of the wall sleeve. 6. Caulk the seam between the louver frame and the wall watertight. 3" (76mm)MAX Page 8

Intake Collars Dimensional Data An outdoor picture frame type flange provides a finished look to rough exterior wall openings. The intake air collar is designed for use with the extruded aluminum louver. The louver can be recessed up to 3'' (76mm) within the intake air collar. The intake air collar is manufactured of heavy-gauge anodized aluminum. C.N.I. Collar Size Dimensions (Inches) A B C D E Cabinet/Wall Sleeve Type Short Long Short Long Short Long Short Long Short Long 4 1 /2 Inch Deep Collar 37½" 41½" 37⅝" 41⅝" 39⅝" 43⅝" 4½" 4½" 3 3 1 1 /2 Inch Deep Collar 37½" 41½" 37⅝" 41⅝" 39⅝" 43⅝" 1½" 1½" Notes: 1. Intake collars are available in two styles, 1½" deep and 4½" deep. Intake collars are fabricated of clear anodized aluminum to match standard extruded architectural louvers. (Not compatible with stamped flanged louver.) 2. All intake collars are cartoned and shipped separately for field installation. 3. Intake collar must be field caulked to wall and to cabinet/wall sleeve for airtight and watertight weather seal. 4. For walls 12⅞" to 14⅜" thick on standard cabinet units the 4 1 /2" deep intake collar can be used in lieu of a wall sleeve extension. Page 9

Wall Guard Flange 1. The wall guard flange is shipped disassembled and is normally taped to the inside of the cabinet/wall sleeve. 2. Mounting the wall guard flange before the cabinet/wall sleeve is installed: a. Locate the rear edge of the wall guard flange at the position that corresponds to the inside finished wall line. b. Using the holes in the wall guard flange as a template, drill eleven (11) 1 / 8" (3mm) diameter holes in the cabinet wall sleeve and attach the wall guard flange to the cabinet/wall sleeve with the eleven (11) #8x 3 / 8 self-tapping screws furnished. Figure 2. Wall guard flange installation 3. Mounting the wall guard flange after the cabinet/wall sleeve is installed: a. Position the wall guard flange so that the rear edge is tight against the inside finished wall surface. b. Measure the distance from the front of the cabinet/ wall sleeve to the front edge of the wall guard flange and add 1 / 2" (13mm). At this dimension from the front of the cabinet/wall sleeve, drill eleven (11) 1 / 8" (3mm) diameter holes from the inside of the cabinet/wall sleeve through the angle of the wall guard flange spacing them approximately 6" to 8" (153mm to 203mm) as shown. Attach the wall guard flange to the cabinet/wall sleeve with the eleven (11) #8 x 3 / 8 self-tapping screws provided. 20" (508mm) MAX 8" (203mm) MIN. LOCATE THE REAR EDGE OF THE WALL GUARD FLANGE TOP AND END SECTIONS AT THE FINISHED WALL LINE TOP WALL GUARD FLANGE CABINET/WALL SLEEVE END WALL GUARD FLANGE NOTE 2 OPTIONAL SUBBASE NOTE 3 Wall Guard Flange (Flange for Interior Wall Finish) Intake Collar (Flange for Exterior Wall Opening) Page 10

Wall Sleeve Extension 1. When a wall sleeve extension is used, with the cabinet/wall sleeve assembly; then place them in the wall as a unit. 2. In cases where the louver is already installed in the cabinet/ wall sleeve, remove it from the wall sleeve before installing the extension. 3. Check the tagging of the wall sleeve extension to be sure it corresponds with the correct unit location. 4. Before attaching the wall sleeve extension to the wall sleeve, run a bead of caulking around the outside flange of the wall sleeve where it attaches to the extension, making a watertight seal. 5. Align the predrilled mounting holes of the wall sleeve extension with those of the wall sleeve (the louver mounting holes), and firmly attach these two parts with the six (6) self-tapping screws provided with the wall sleeve extension. 6. Recheck caulking to ensure that all seams are water tight. 7. Refer to the cabinet/wall sleeve installation instructions on page 14 for installation of the wall sleeve and extension into the wall. Figure 3. Wall sleeve installation WALL SLEEVE EXTENSION WALL DEPTH CAULK BY OTHERS CAULK BY OTHERS 1. Attach the extension with the self tapping screws provided, through the slots in the rear of the cabinet/ wall sleeve. 2. Caulk the inside perimeter of the cabinet/wall sleeve/ extensionwatertight. 3. After installation, caulk the exterior perimeter of the extension/wall watertight. EXTENSION CABINET/WALL SLEEVE Page 11

Subbase When a subbase is used, it must be installed prior to the room cabinet/wall sleeve. 1. When removing the subbase from the shipping carton remove the two (2) shipping bolts and sheet metal nuts. Do not throw away the shipping bolts; they are used as subbase leveling bolts. 2. The electrical subbase assembly contains the unit receptacle and junction box. Therefore, before installing the subbase to the cabinet/wall sleeve, it will be necessary to run the power wiring from the stub-in and attach it to the subbase receptacle. 3. The subbase assembly comes in two (2) parts: 4. Attach the front section of the subbase to the cabinet/wall sleeve with the furnished nuts, screws and lock washers using holes provided as attachment points. Install the two (2) star washers provided as shown in the illustration to provide a ground path between the cabinet/wall sleeve and the subbase. 5. Coordinate the remaining instructions with the room cabinet/wall sleeve installation instructions. (Page 14) 6. After the cabinet/wall sleeve is fastened in the wall, position the end filler pieces so they are tight against the wall. Then, using the two (2) holes as a template, drill two (2) 11 / 64 (4.4mm) diameter holes into the front section of the subbase. Attach the two end fillers, using the self-tapping screws provided. a. A front section which bolts to the cabinet/wall sleeve. b. End filler pieces, which telescope to fit flush against the wall. Figure 4. Subbase installation LEVELING BOLTS ELECTRICAL SUBBASE STANDARD SUBBASE ATTACH FRONT OF SUBBASE TO CABINET/ WALL SLEEVE USING HOLES PROVIDED (SEE ITEM 4 ABOVE) ATTACH REAR SECTION WITH (2) #10-24x 3/8" SELF-TAPPING SCREWS PROVIDED (SEE ITEM 6 ABOVE) Page 12

Hydronic Piping 1. Stub hot water or steam piping through floor prior to installation of room cabinet/wall sleeve. 2. After the room cabinet/wall sleeve is installed, complete the piping. Piping must not extend to the right beyond the chassis guide rail in the bottom of the cabinet/wall sleeve. 3. Install valve. Use soft solder only. Refer to the installation instructions packed with each valve. 4. After all piping is complete and chassis is installed, connect wiring to the valve. Plug connection is provided on wiring which hangs from the left side of the chassis. Figure 5. Hydronic piping installation AIR VENT IF REQ'D (BY OTHERS) SUPPLY HYDRONIC COIL (FACTORY MOUNTED IN CABINET/WALL SLEEVE) RETURN CABINET/WALL SLEEVE WIRE HARNESS SHUTOFF VALVES (BY OTHERS) COIL SUPPLY & RETURN CONNECTIONS ARE 5 /8" O.D. FEMALE SWEAT MOTORIZED VALVE (CNI). STANDARD PIPING FOR HOT WATER SHOWN. FOR STEAM SYSTEM, STEAM TRAP BY OTHERS REQUIRED IN RETURN LINE. Page 13

Room Cabinet/ Wall Sleeve 1. Where applicable, install the louver frame, wall sleeve extension, subbase, and/or wall guard flange as per prior installation instructions. 2. For masonry installations, set the room cabinet/wall sleeve in soft mortar. 3. Position the room cabinet/wall sleeve in the wall opening. Where applicable, align with louver frame. See Figures 6 through 10 and associated notes for various installations. 4. Where applicable, level the subbase with the leveling bolts provided. 5. After the room cabinet/wall sleeve is installed and leveled, secure the louver frame to the wall with screws driven through the sides and top of the room cabinet/wall sleeve outward through the louver frame. Never secure the frame through the bottom, as it can cause leaks. 6. Caulk the outdoor joint between the room cabinet/wall sleeve and the louver frame: top, bottom, and both sides. Do not permit caulking to block the weep holes. 7. Install the outdoor louver. Holding the louver with a wire loop, or other similar means, push the louver out through the rear opening in the room cabinet/wall sleeve and pull the louver back to the rear face so that the louver studs pass through the holes in the room cabinet/wall sleeve flange. Attach the louver with the washers and nuts provided, and securely tighten the louver in place. Figure 6. Panel construction, bottom inlet, extruded louver 1 /4" (6mm) Min. Figure 7. Masonry construction, bottom inlet, extruded louver Discharge Caulk By Others 8" (203mm) Min. 8 1 /2" (216mm) Max. Without Subbase Discharge Masonry Lintels By Others 5"(127mm) Min. Return Air Inlet Finished Floor Line Slope 1 O Max. Subbase (See Note 3) Figure 8. Masonry construction, front inlet, extruded louver 8" (203mm) Min. Discharge Masonry Lintels By Others See Note 4 1 /4" (6mm) Min. Caulk By Others 5" (127mm) Min. Return Air Inlet Subbase (Optional) Finished Floor Line Slope 1 O Max. Fasteners By Others Flush Louver Installation Shown Figure 9. Panel construction, bottom inlet, stamped flanged louver Discharge See Note 4 1 /4" (6mm) Min. Caulk By Others 3" (76mm) Fasteners By Others Return Air Inlet See Note 5 Slope 1 O Max. Standard Louver Installation Shown Return Air Inlet Slope 1 O Max. Standard Louver Installation Shown Finished Floor Line Mortar Bed or Rigid Insulation Board Figure 10. Masonry construction, front inlet, stamped flanged louver 8" (203mm) Min. Discharge Masonry Lintels By Others 5" (127mm) Min. Finished Floor Line Subbase (See Note 3) Notes: 1. Recommended wall openings are 16 1 /2" x 38" (419mm x 965mm) for short cabinets and 16 1 /2" x 42" (419mm x 1067mm) for long cabinets. See Detail 2. Set the cabinet level side to side and level to no more than 1 O slope downward toward outside, front to back. Return Air Inlet See Note 5 Finished Floor Line 3" (76mm) Slope 1 O Max. Fasteners By Others Caulk By Others 3. Fasten the cabinet/wall sleeve to the wall when possible. Do not fasten the cabinet/wall sleeve through its bottom. 4. Regardless of the type of wall construction, the cabinet/wall sleeve must be field caulked to the wall around the top, bottom, and both sides, to form an airtight and watertight weather seal. For flush louver installation, if the wall material at the opening is not watertight, framing or flashing must be provided around the wall opening (by others) to prevent penetration of water into the wall. Mortar Bed or Rigid 5. 1/2" (13mm) minimum for power cord (short cabinet only). Caution: If the conditioned space is carpeted, increase this dimension to 3/ 4 " (19mm) minimum for long cabinets or to 1 1 /4" (38mm) minimum for short cabinets. Page 14

Chassis Important: The chassis must be fully seated to provide a proper weather seal. When properly installed, the front edge will line up with the front edge of the cabinet/wall sleeve 1. Remove the chassis from the carton and check for damage. 2. Compare the nameplate information to the job requirements and check the voltage supplied to the unit before installing the chassis. 3. Remove all debris from the cabinet/wall sleeve and check to see that the rear seal strip is securely attached. 4. Spin the fan wheels to make sure they rotate freely, and they are tight. Check the copper tubing in the compressor compartment. If required, bend carefully to eliminate contact with other tubing or the compressor shell. 5. Remove the two (2) hex nuts from the weld studs on the cabinet and remove the two (2) clips. 6. Install the chassis in the wall sleeve. Check the seal where the gasket on the discharge plenum seals against the flange on the wall sleeve. The seal should be in complete contact with the wall sleeve flange. 7. Connect the main power, the control wiring (if furnished), and the motorized valve wire harness (hydronic heat model only). 10.Install the front panel before operating the unit. Fasten the panel at the lower corners using the screws provided. 11.See Figure 11 to check the weather seal. CAUTION Cleaning compounds can permanently damage unit. Do not spray cleaning compounds onto the discharge grille, return air opening or unit controls. Clean unit by wiping with a damp cloth. When using cleaning compounds on carpets, floors or walls, turn the unit off to avoid drawing vapors into the packaged terminal unit. Figure 11. Perimeter weather seal! CABINET/WALL SLEEVE WEATHER SEAL 8. 9. Install the clips removed in Step #5. Install the filter before operating the unit. INSIDE VIEW (REAR OF WALL SLEEVE) Note: Check the weather seal around the entire perimeter for proper adhesion to the cabinet/wall sleeve. Page 15

Permanently Connected, Long Cabinet (Hydronic) With Subbase All dimensions in inches. Top View Left End View Front View Notes: 1. Hydronic heat 5/8" O.D. coil connections (male sweat) are always in left end of unit, as shown. 2. 1/8" FPT tapping included in hydronic heat return connection for field installation of an air vent furnished by others, if required. 3. Hydronic heat motorized valve is line voltage two-way, two-position, normally open, which must be field piped in coil supply. Valve wiring plugs into control circuit wiring furnished with the unit. 4. Cabinet/wall sleeve must be installed prior to electrical stub-up. 1/2" knockouts are provided for field wiring in electrical box at left end of unit. 5. When required, 24 volt external control circuit connections are made in the left-hand end compartment. 6. Standard subbase is provided with leveling screws which permit height adjustment between 5" minimum and 6" maximum. Subbase depth is adjustable from 7 1 4" minimum to 20 1 8" maximum. Subbase is normally shipped cabinet/wall sleeve for field installation. 7. Electrical stub-up and coil supply and return piping may enter bottom of subbase through area indicated. 8. The bottom of the wall sleeve must be solidly supported by the wall and the unit subbase. If wall sleeve projects outdoors, maximum unsupported depth is 4". Wall sleeve should be set level for condensate drainage. Page 16

Permanently Connected, Short Cabinet {Electric Heat/Heat Pumps} With Subbase Top View Left End View Front View Notes: 1. All dimensions in inches. 2. When required, 24-volt external control circuit connections are made in the bottom of the control box in right end of unit. 3. Standard subbase is provided with leveling screws which permit height adjustment between 5" minimum and 6" maximum. Subbase depth is adjustable from 7¼" minimum to 20⅛" maximum. Subbase is normally shipped in wall sleeve for field installation. 4. Electric stub-up may enter bottom of subbase through area indicated. Junction box for connection of power supply wiring located in right-hand end of subbase has 1/2" conduit knockouts. 5. The bottom of the wall sleeve must be solidly supported by the wall and the unit subbase. If wall sleeve projects outdoors, maximum unsupported depth is 4". Wall sleeve should be set level for condensate drainage. Page 17

Extruded Architectural Louvers Louver Dimensions Cabinet Type A Short Cabinet 37⅛" Long Cabinet 41⅛" Standard Installation (See Note 3) Flush Installation (See Note 5) Notes: 1. All dimensions in inches. 2. Louvers are clear anodized aluminum. 3. Extruded louvers are factory mounted on cabinet/wall sleeve prior to shipment and must be removed prior to cabinet/wall sleeve installation. See Note 5. 4. Louvers are designed for installation from interior of building. Fasteners are included. 5. Wall sleeve should be caulked to wall before installation of extruded louver. If wall material at opening is not watertight, framing or flashing must be provided around wall opening (by others) to prevent penetration of water into wall. 6. Regardless of the type of wall construction, the cabinet/wall sleeve must be field caulked to the wall (before installing the louver) top, bottom, and both sides to form an airtight and watertight weather seal. See installation instructions on page 14 room cabinet/wall sleeve. Page 18

Optional Stamped Flanged Louvers Louver Dimensions Cabinet Type A Short Cabinet 40" Long Cabinet 44" Notes: 1. All dimensions in inches. 2. Louvers are clear anodized aluminum. 3. Stamped flanged louvers are shipped separately for field mounting on cabinet/wall sleeve. 4. For standard cabinet units, total wall thickness with stamped flanged louver cannot exceed 12⅝", unless a wall sleeve extension is used. 5. Regardless of the type of wall construction, the cabinet/wall sleeve must be field caulked to the wall (before installing the louver) top, bottom, and both sides to form an airtight and watertight weather seal. See installation instructions on page 14 room cabinet/wall sleeve. Page 19

Equipment Start-up Electrical Connections The 37 1 / 2" short cabinet is used for applications that utilize electric resistance or reverse cycle/heat pump heating technologies. The chassis power cord is designed to plug directly into an electrical receptacle that is hard wired and concealed within the subbase of the room cabinet/wall sleeve (see Fig.13). The 41 1 / 2" long cabinet is used when the hydronic (hot water or steam) heat option is chosen. Included with this room cabinet is a junction box designed to house an electrical receptacle that is hard wired to the facilities respective circuit. In all cases, the electric receptacle is supplied by either the factory or by others. Figure 13. Subbases Short Cabinet Subbase with Electrical Box Standard 5" adjustable depth Subbase 1. The electrical installation must be in accordance with the job wiring diagram and comply with the National Electrical Code and all local electrical codes. Figure 12. Receptacle location for permanently connected units 2. Permanently connected units may utilize time delay fuses or HACR type circuit breakers (where applicable) for branch circuit protection. Cord connected units may utilize time delay fuses or circuit breakers for branch circuit protection. 3. Optional factory mounted circuit breakers, when furnished, are not offered as branch protection. 4. Since all chassis have identical dimensions, regardless of heating and cooling capacities, pay careful attention to the branch circuit amperage requirement for each unit to avoid electrical mismatching of chassis and permanently connected branch circuits during field installation. 5. Unit supply voltage must be as follows: Nameplate Voltage 120V 208V 240V 277V Minimum 108 187 216 249 Maximum 132 228 264 304 Initial start-up of the C.N.I. equipment by an experienced person is usually the responsibility of the installing contractor. This consists of inspecting and operating the equipment for all functions at the time of initial installation, and making adjustments as necessary. It also includes demonstrating its proper operation to the owners or their agents. Note that unless otherwise specifically agreed to in writing, there is no field labor or start-up service included in the price of the equipment. The unit can be furnished with a concealed fan cycle switch on the control box. Before start-up, place this switch in the ON position. Continue start-up procedures as follows: 1. Check the main power supply to be sure there is power to the unit. 2. Open the control access door and press the button labeled IDLE. The fans should be energized. 3. Depress the Hi and Low buttons. The fan speed should change. 4. Depress the button marked Heat. Turn the thermostat knob completely counterclockwise. The electric heat elements or the hydronic valve should become energized and noticeable heat should be felt at the discharge grille. 5. Depress the Cool button and move the thermostat completely clockwise. The compressor and condenser fan should come on and the air from the discharge should feel cold. 6. Depress the IDLE button and all functions of the unit should stop. Caution: The IDLE button does not disconnect power to the unit. Before servicing the equipment, discon-nect the unit from the power source. Optional Ventilation The introduction of outside air is controlled by an automatic damper. During normal operation, the damper will be open whenever the Heat, Cool, or Hi-Low control buttons are depressed. If the fans are not energized, the damper will be closed. An On-Off switch is provided so that the damper can be kept closed. Page 20

Incremental conditioners are built to last. With proper care, the unit should provide uninterrupted service for many years. Scheduled maintenance of this equipment, as described below, is the key to the equipment s longevity. Air filters must be cleaned at regular intervals. Twice annually may be adequate in some areas while twice monthly may be required in others. Areas with high dirt and lint content or heavy usage of units require more frequent filter maintenance than those areas of relatively clean operating or low usage conditions. Unit malfunction may occur if air filters are not kept clean. The standard filter supplied with the unit is a washable media type. This type of filter should be rinsed with hot water and a mild detergent, let dry. It is recommended that the chassis be removed every year for a thorough checkup. The heat section need not be removed but should be inspected and cleaned if necessary. To access the unit for cleaning or service, proceed as follows: 1. 2. Turn off main power to the unit. Remove the front panel and the kickplate. Scheduled Maintenance 3. Unplug the chassis from the control box and remove the chassis from the wall sleeve. Replace with spare chassis. 4. Move chassis to maintenance area and check all seals, wires, and insulation and repair as required. 5. Cover motor and protect all electrical components before washing dirt from chassis. Warning: Residential and institutional cleaning compounds can cause permanent damage to the packaged terminal unit. To avoid damage to unit controls and heat transfer surfaces, do not spray cleaning compounds onto the return air opening or unit controls. Normal cleaning can be accomplished by wiping the unit surface with a damp cloth. When using cleaning compounds on carpets, floors or walls, turn the unit off to avoid drawing potentially damaging vapors into the package terminal unit. 6. Clean condensate drain and clear weep holes. 7. Dry equipment thoroughly, especially electric parts and insulation. 8. Clean any rust spots with steel wool and paint with rust inhibiting paint. 9. Check all fasteners and tighten if necessary. 10. Check the motor nameplate for routine oiling instructions. 11. Test run chassis before reinstalling or returning to spare parts stock. Recommended Spare Parts An advantage of the Incremental system is that failure of any one part affects only one Incremental conditioner. A further advantage is that a failed part can be quickly and easily replaced, thus minimizing the inoperative time of the equipment. This is so, however, only if a replacement part is quickly available. In order to replace a failed part quickly and keep all Incremental conditioners in good operating condition CNI recommends that at the time Incremental conditioners are purchased, owners arrange for a small stock of replacement parts. Where an owner carries such a stock, immediate replacement of a defective part is possible. The defective part can then be returned to CNI or one of its authorized service stations. So long as it is still in warranty, it is repaired or replaced and returned to the owner without cost for shop labor and material. Thus, the stock of replacement parts is constantly replenished. To the right is listed the kind of parts which CNI recommends be carried in stock, together with the quantity of parts recommended per 100 Incremental conditioners installed. Qty. Per Part Name 100 Units Cooling Chassis........................................ 2 Compressor.......................................... 2 Compressor Overload Device............................ Compressor Running Capacitor.......................... Fan Motor............................................. Fan Motor Capacitor.................................... 2 Wheel Outdoor......................................... 2 Wheel Indoor.......................................... 2 Pushbutton Switch...................................... Thermostat............................................ Knob for Thermostat.................................... Control Relay.......................................... Hydronic Valve......................................... Spare Filter............................................ Electric Elements....................................... Hi-Limit Switches....................................... 4 Hydonic Coils.......................................... 4 2 2 2 4 4 12 4 8 20 4 Page 21

TROUBLESHOOTING CHART OPERATING FAULT Compressor will not start - no hum Compressor will not start - hums but trips on overload protector Compressor starts and runs, but short cycles on overload protector Unit operates with little or no capacity Condenser fan and vent motor runs, but compressor will not start Electric shock from unit Water drips from unit Unit vibrates or rattles POSSIBLE CAUSE 1. Broken or loose wiring 2. Improper wiring 3. Overload protector tripped. 1. Improper wiring 2. Running Capacitor defective 3. Compressor motor has a winding open or shorted. 4. Internal mechanical trouble in compressor 1. Additional current passing thru overload protector 2. Overload protector defective 3. Excessive discharge pressure 4. Suction pressure too high 5. Compressor too hot -return suction gas hot 6. Compressor motor has a winding shorted 1. Shortage of refrigerant 2. Restriction in refrigeration system 3. Dirty condenser 4. Defective TXV, by-pass, or reversing valves. 5. Inadequate air flow over evaporator 1. Broken or loose wiring 2. Improper wiring 3. Defective running capacitor on compressor 4. Defective compressor overload protector 5. Defective compressor motor 1. Improper grounding of electrical circuit 1. Condensate drain plugged 2. Chassis damaged 1. Copper tube vibrating 2. Loose components CORRECTION 1. Check all wiring and connections 2. Check against wiring diagram 3. If external type 1. Check against wiring diagram 2. Determine reason and replace 3. Replace compressor 4. Replace compressor 1. Check against wiring diagram 2. Check current, replace protector (If external type) 3. Check for restrictions in condenser air flow or refrigeration circuit 4. Check for defective valves 5. Check refrigerant charge (fix leak) refrigerant, if necessary. Check reversing valve operation. 6. Replace compressor 1. Fix leak, recharge 2. Determine location and remove 3. Clean condenser 4. Replace TXV, bypass, or reversing valves. 5. Clean evaporator coil, check fan, clean filter. 1. Check all wiring 2. Check against wiring diagram 3. Replace capacitor 4. Replace overload Protector. (If external type) 5. Replace compressor 1. Check wiring diagram and provide proper ground 1. Clean drain 2. Repair or replace damaged parts 3. Check installation in wall sleeve. 1. Adjust by bending or apply tape 2. Tighten and adjust as necessary Page 22

Comitale National, Inc. Standard Limited Warranty Limited First Year Warranty CNI warrants for a period of one (1) year from the date of shipment from CNI's factory, that its "Tru-Fit" replacement chassis will be free from defects in material and workmanship. Handling of Warranty Claims: CNI will repair, or at its option replace, any part of parts of Units which CNI's examination shall disclose to its satisfaction to have been defective. We will send the replacement to the installer. You must pay all transportation and installation fees. Exclusions from Warranty - This warranty shall not apply: If the unit has not been installed according to our installation instructions; If the unit has been repaired improperly; If the unit has been subject to accident, alteration, neglect, or misuse; If efficiency or performance has been impaired by use of any product not authorized by us; If serial numbers have been altered or removed; If located in any area with chemically corrosive atmosphere. There are no other express warranties. We do not warrant that the unit is suitable for any particular purpose, or can be used in buildings or rooms of any particular size. No one can make any other warranties for us. CNI neither assumes, nor authorizes any person to assume for it, any obligation or Warranty other than that stated in this Warranty. CNI reserves the right to make changes in design or improvements of its units or parts thereof without obligation to make or install such changes or improvements in or upon units covered by this Warranty. Your remedy for a breach of this limited Warranty or for a breach of any implied Warranty, including the Warranty of merchantability is limited to the replacement of defective parts. We will not be liable for any damages caused by any defect in this unit. This is CNI's sole Warranty. CNI makes no other Warranty of any kind whatsoever, expressed or implied. Page 23

C.N.I. Optional Four Year Extended Warranty Limited First Year Parts Warranty The C.N.I. unit is warranted to be free from defects, under normal installation, use and service for one year. Extended Warranty The major component parts listed in Table 1 of this Warranty are warranted to be free from defects, under normal installation, use and service for the additional period of time shown in Table 1 of this Warranty form. Table 1 Major Component Extended Term of Warranty Component & Products Motor Compressor: Heat Pump Motor Compressor: Air Conditioning Systems Refrigeration System Extended Warranty Period 4 years 4 years 4 years Description of Refrigeration Warranty In addition, C.N.I. warrants that the cooling chassis consisting of compressor, condenser, evaporator, expansion valve, reversing valve and interconnecting piping of the refrigeration section of the units will be free from defects in material and workmanship for a period of four (4) years immediately following the expiration of the Initial Warranty (The Additional Warranty). Duration of Warranty This Warranty begins on the date of shipment from the factory, with the limited first year Warranty period being 12 months and the optional Extended Warranty period being 48 additional months. Replacement of a part or major component under Warranty does not extend the Warranty term. What C.N.I. Will Do Comitale National, Inc. will provide a free part to replace one which becomes defective during the one year Warranty period, or a major component to replace one which becomes defective during the Extended Warranty period listed in Table 1. The replacement may be either new or rebuilt. C.N.I. or our authorized distributor will send the replacement to the installer. You must pay all transportation and installation charges. Page 24

Exclusions from Warranty 1. The following expenses are your responsibility: Normal maintenance; Transportation and installation charges for replacement parts; Replacement of refrigerant or filters: Any other service calls or repairs. 2. This Warranty does not apply: A. If the unit has not been installed according to our installation instructions; B. To filter media and controls furnished by others; C. To any part or parts of units becoming defective as a result of: 1. Negligence, accident or other casualty. 2. Owner failure to provide normal maintenance such as lubrication of motor and bearing, cleaning of coils, removal of foreign material from water circuits or to provide protection of units from freezing water, corrosive atmosphere, or improper voltage. 3. Improper installation, or repair or alteration by anyone other than an authorized C.N.I. agent. 4. Operation in any manner contrary to C.N.I.'s printed instructions. D. To cooling chassis if it has been opened or tampered in any way. E. If serial numbers have been altered or removed. 3. There are no other express warranties. C.N.I. does not warrant that the unit is suitable for any particular purpose, or can be used in buildings or rooms of any particular size. No one can make any other warranties for C.N.I. 4. Any warranties implied by law, including the implied Warranty of merchantability, are limited in duration to the one year term of the first year parts Warranty. 5. Your remedy for a breach of this limited Warranty or for a breach of any implied Warranty, including the Warranty of merchantability is limited to the replacement of defective parts and listed major components in Table 1. A. C.N.I. will not be liable for any damages caused by any defects in this unit. 6. C.N.I. will not be liable for delays caused by events beyond our control, including war, government restriction, strikes, fire, flood, or other acts of God. Owners Responsibilities 1. Your normal responsibilities as owner are set forth in the instruction manual. Please read it carefully. 2. If you have a Warranty claim, notify your installer promptly. If they do not take care of your claim, write to Comitale National, Inc., 1683 B Winchester Road, Bensalem, PA 19020, Attn: Warranty Claims. Or email to sales@comitalenational.com Enclose a report of inspection by your installer or service person. Be sure to include model number, serial number, and date of purchase. This Warranty gives you specific legal rights, and you may have other rights which vary with location. Page 25