WARNING WARNING IMPORTANT
Contents
1. All appliances must be wired strictly in accordance with the wiring diagram furnished with the appliance Any wiring different from the wiring diagram could result in a hazard to persons and property Any original factory wiring that requires replacement must be replaced with wiring material having a temperature rating of at least 105 C Ensure that the supply voltage to the appliance as indicated on the serial plate is not 5 greater than rated voltage A CAUTION Ensure that the supply voltage to the appliance as indicated on the serial plate is not 5 less than the rated voltage Do not attempt to reuse any mechanical or electrical component which has been wet Such component must be replaced Installation of wiring must conform with local building codes or in the absence of local codes with the National Electric Code ANSI NFPA 70 Latest Edition Unit must be electrically grounded in conformance to this code In Canada wiring must comply with CSA C22 1 Part 1 Electrical Code Electric wiring must be sized to carry the full load amp draw of the motor starter and any controls that are used with the unit Refer to the unit serial plate for the unit specific electrical data Any damage to or failure of units caused by incorrect wiring of the units is not covered by warranty Once the piping installation is complete the electrical supply can be connected to the terminal strip in the electrical box2. Hot Water Heating Coil Piping Locations Hot Water Heating Coil Only or Chilled Water DX Cooling Coil with Hot Water Pre Heat Coil LEFT HAND CONNECTIONS RIGHT HAND CONNECTIONS AIR FLOW AIR FLOW R i gt yy Q 97 5 A d COND i RA DRAN 3 37 11 1 1 5 Supply m H R Return Table 18 1 Hot Water Heating Coil Piping Locations Dimensions inches IR 1 Row 1 2 Row 21 7 8 2 Row For Chilled Water piping location see Figure 15 2 For DX Cooling piping location see Figures 16 2 and 17 2 Figure 18 2 Hot Water Reheat Coil Piping Locations Chilled Water DX Cooling Coil with Hot Water Reheat Coil Only LEFT HAND CONNECTIONS RIGHT HAND CONNECTIONS AIR FLOW AIR FLOW S Supply R Return Table 18 2 Hot Water Reheat Coil Piping Locations Dimensions inches 1 Row 1 2 Row 21 7 8 2 Row For Chilled Water piping location see Figure 15 1 For DX Cooling piping location see Figures 16 1 and 17 1 18 14 500 2 PIPING LOCATIONS Figure 19 1 Steam Heating Coil Piping Locations Steam Heating Coil Only or Chilled Water DX Cooling Coil with Steam Pre Heat Coil LEFT HAND CONNECTIONS RIGHT HAND CONNECTIONS AIR FLOW
3. SHUT OFF UNION STRAINER VALVE Ft sims lt D CIRCUIT SHUT OFF UNION UNION SETTER VALVE Id 2 WAY CONTROL VALVE HOSE BIB DRAIN Figure 4 3 Typical 3 Way Piping Installation AIR VENT SHUT OFF UNION STRAINER VALVE SUPPLY lt BALANCING VALVE UNION CIRCUIT SHUT OFF UNION UNION SETTER VALVE keq RETURN 3 WAY CONTROL VALVE HOSE BIB DRAIN 14 500 2 INSTALLATION Piping Installation Steam Coils A CAUTION Do not operate the units within steam pressure greater than 10 psig Steam pressure must be 10 psig or lower to avoid excessive discharge air temperatures that could cause burns or personal injury 1 Steam coils are supplied from the factory with 1 NPT connections 2 Asteam trap should be provided with a trap of sufficient size and capacity to pass a minimum of two times the normal condensate released by the unit at the minimum differential pressure in the system Piping Insulation Chilled water and condensate pipes should be insulated right up to the coil to prevent condensation which can damage objects located below the piping Chilled water valves must also be insulated to prevent sweating Hot water pipes should be insulated to reduce heat loss and to prevent overheating of the end compartment Wiring A WARNING Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage
4. COIL WATER VOLUME gal 0 5 gal 0 88 gal 5 1 28 1 66 Water Coils Inches Unions with 3 4 female solder joint Evaporator Coil Inches 3 4 OD Suction 1 2 OD Liquid Steam Coil Inches 1 NPT Condensate Line Inches 3 4 ID condensate line UNIT WEIGHT approximate Shipping Weight 16 5 8 Units 420 470 Operating Weight 16 5 8 Units 365 410 Shipping Weight 21 7 8 Units 480 540 Operating Weight 21 7 8 Units 425 480 FILTER 1 Woven Fiberglass 70 75 Arrestance Quantity 2 2 Dimensions in 10 X 24 10 X 30 Table 20 2 Electrical Data o EE 115 208V 230V 277V FLA MCA MOP FLA MCA MOP MCA MOP FLA MCA MOP 1 4 HP Blower Std 27 34 60 1 2 HP ECM Blower Upgrade i 5 4 8 0 1 4 HP Blower Condensate Pump 5 2 2 3 0 1 2 HP ECM Blower Condensate Pump 5 9 10 0 Table 20 3 Sound Data Model 790 5900 1400 10 22 L M H L M H 750 Speed L M H M H dBA 55 7 62 8 66 5 61 5 68 4 Notes 1 Rated in accordance with ARI Standard 350 2008 2 Sound power levels were recorded using ARI standard 220 2007 method 3 Sound power levels were recorded with the unit running in full recirculation mode with standard PSC Motor Digit 16 1 and a 3 row coil 20 14 500 2 COMPONENT LAYOUT Figure 21 1 Explode
5. 1 For Steam Pre Heat piping location see Figure 19 1 16 14 500 2 PIPING LOCATIONS Figure 17 1 DX Cooling with Optional Reheat Piping Locations Size 1000 1250 1500 DX Cooling Coil Only or DX Cooling Coil with Reheat Coil LEFT HAND CONNECTIONS RIGHT HAND CONNECTIONS AIR FLOW AIR FLOW 13 74 10 93 8 86 817 5 COND COND gi DRAIN lt DRAIN kl 1 E L 88 I T B LL 7 Liquid Line D SL Suction Line Table 17 1 DX Cooling Coil Piping Locations Dimensions inches c D 16 5 8 1000 1250 1500 7 50 4 50 11 75 21 7 8 1000 1250 1500 For Hot Water piping location see Figure 18 2 For Steam Reheat piping location see Figure 19 2 Figure 17 2 DX Cooling with Pre Heat Piping Locations Size 1000 1250 1500 DX Cooling Coil with Pre Heat Coil Only LEFT HAND CONNECTIONS AIR FLOW AIR FLOW 12 03 44 33 DRAIN RA 88 a LL Liquid Line SL Suction Line Table 17 2 DX Coil with Pre Heat Piping Locations Dimensions inches 16 5 8 1000 1250 1500 4 50 1 75 21 7 8 1000 1250 1500 For Hot Water Pre Heat piping location see Figure 18 1 For Steam Pre Heat piping location see Figure 19 1 14 500 2 17 PIPING LOCATIONS Figure 18 1
6. ACCESS _ OPENING lt 7 00 I EXC 2122 w2 E 407 OUTSIDE AIR 4 97 OPENING TYP 278 TYP CONDENSATE LINE OPENING x2 REAR VIEW Table 14 1 Unit Width Dimensions Dimensions inches ws m L e d 6 5 o z 22 03 TUNNEL 7 6 3 13 5 54 L i 19 17 29 84 33 04 18 90 4 RIGHT SIDE VIEW 14 14 500 2 PIPING LOCATIONS Figure 15 1 Chilled Water Coil with Optional Reheat Piping Locations Chilled Water Coil Only 2 Pipe Chilled Water Hot Water Coil or Chilled Water Coil with Reheat Coil LEFT HAND CONNECTIONS RIGHT HAND CONNECTIONS AIR FLOW AIR FLOW S Supply H R Return F Table 15 1 Chilled Water Coil with Optional Reheat Piping Locations Dimensions inches ee 2 Row 4 Row 2 Row 4 Row For Hot Water Reheat piping location see Figure 18 2 For Steam Reheat Piping location see Figure 19 2 Figure 15 2 Chilled Water Coil with Pre Heat Piping Locations Chilled Water Coil with Pre Heat Coil Only LEFT HAND CONNECTIONS RIGHT HAND CONNECTIONS AIR FLOW AIR FLOW 3 37 DRAIN lt RA RA S Supply R Return Ta
7. AIR FLOW S Supply R Return Table 19 1 Steam Heating Coil Piping Locations EE me me anm 165 8 1 Row 1225 4 00 2178 Row 1750 For Chilled Water piping location see Figure 15 2 For DX Cooling piping location see Figures 16 2 and 17 2 Figure 19 2 Steam Reheat Coil Piping Locations Chilled Water DX Cooling Coil with Steam Reheat Coil Only LEFT HAND CONNECTIONS RIGHT HAND CONNECTIONS AIR FLOW AIR FLOW S Supply R Return Table 19 2 Steam Reheat Coil Piping Locations er 1658 Row 950 2178 Row 1475 For Chilled Water piping location see Figure 15 1 For DX Cooling piping location see Figures 16 1 and 17 1 14 500 2 19 TECHNICAL DATA Table 20 1 Technical Data VSF VFV amp VSV Units 750 1000 1250 1500 Fan Quantity 2 3 4 4 Fan Diameter 8 06 8 06 8 06 8 06 Fan Width 7 15 7 15 7 15 7 15 Motor Type Standard PSC with Thermal Overload Protection Motor Size Qty 1 1 2 1 2 1 2 1 2 Airflow High Medium Low 750 650 500 1000 750 600 1250 900 750 1500 1100 900 Max External Static Pressure 0 05 0 05 0 05 0 05 Motor Type Premium High Static ECM Electonically Commutated Motor Motor Size Qty 1 1 4 1 4 1 4 1 4 Airflow High Medium Low 750 650 550 1000 850 750 1250 1100 1000 1500 1250 1000 Max External Static Pressure 0 25 0 25 0 25 0 25
8. By 0 24 kPa CFH 1 699 m min 6 893 kPa Btu ft 0 0374 mJ m F 32 x 0 555 G pound 0 453 kg inches 25 4 mm Btu hr 0 000293 kW hr feet 0 305 meters gallons 3 785 liters CFM 0 028 m min psig 27 7 W C UNIT LOCATION A DANGER Appliances must not be installed where they may be exposed to potentially explosive or flammable atmosphere Handling Each unit will be shipped to the site secured to a wood skid using metal brackets Whenever possible all lifting and handling of the unit should be done with the packing and skid in position Due to the length of the unit 72 forklift tines are recommended to avoid damaging the unit Remove the metal brackets prior to lifting the unit off of the skid When slinging or using a forklift to lift the unit the support points should be sufficiently apart to give stability when lifting Unless otherwise noted the lifting points should be equidistant from the centerline Extreme care should be taken not to drop the unit Considerable damage can occur to the unit during positioning in particular to the paneling and exterior paint Use an adequate number of personnel and the correct tools when moving the unit A lifting device such as a forklift is needed to install this product A special key is provided with the unit for use with the tamper proof cabinet locks on the top and front panels The use of torque screwdrivers on panel cover or component mounting screws
9. DX Cooling models only Shut unit down and disconnect by a qualified service agency the main power The compressor signal Y1 disconnected from the indoor unit in step 2 can now be re connected and main power applied to the system Note DX Cooling models only The 24V power for the indoor unit control circuit is supplied from a unit factory installed transformer When the indoor and outdoor units are supplied from separate main supplies care must be taken to ensure that See start up sheet examples Figures 9 1 and 10 1 the outdoor unit is isolated whenever the indoor unit power is removed Failure to do so may result in freeze ups and other Pre Start Checks damage to the unit 1 Check that the supply voltage matches the unit supply voltage listed on the Unit Serial Plate Verify that all wiring is secure and properly protected Trace circuits to insure that the unit has been wired according to the wiring diagram 2 Check that the unit has no visible damage and that all the components are secure 3 Check that all field electrical and mechanical work has been performed according to all applicable Federal State and Local codes 4 Check the supply voltage to the unit is within 5 of the voltage on the unit serial plate 5 Check that the system has been correctly flushed 6 Check for any water leaks 7 The unit and interconnecting piping have been evacuated correctly and the condensing unit service valves are open DX Coo
10. When installing any wiring into the control box extra cable must be left outside the panel to allow the panel to open fully Failure to follow these instructions may cause damage to the wiring and or the unit Terminal Strip Connections The terminal strip connections are designed to clamp down on the wires To properly connect the wires to the terminal strip 1 Push a small flat head screwdriver into the square hole on the terminal Press firmly until the screwdriver hits the back stop and opens the terminal see Figure 5 1 2 Remove approximately 3 8 of insulation from the end of the wire and push the stripped wire into the oval hole in the terminal 3 Remove the screwdriver Pull on the wire to make sure that it is securely clamped in the terminal 4 Make sure that the terminal clamp is in contact with bare wire insulation removed Figure 5 1 Terminal Strip 14 500 2 5 2 No water flow cause a freeze condition resulting in damage to the coil 3 Never leave the unit filled with water in a building without heat unless antifreeze has been added START UP PROCEDURE START UP PROCEDURE 9 During the unit operation measure and record all the information that is required to complete the Start Up Sheets that are supplied with the unit Copy the information onto the IM PO RTANT Start Up Sheets Figures 9 1 and 10 1 in this manual for your records 1 Start up and adjustment procedures should be performed 10
11. drain pan connection and 3 4 ID condensate line The condensate drain pan connection is field changeable and can be mounted on either the left or right side of the unit To change the connection location remove the condensate line from the elbow Remove the elbow from the drain pan and remove the plug from the opposite side of the drain pan Re install the elbow and the plug on the opposite sides of the drain pan Switch the drain pan mounting plates so that the shorter plate is on the same side as the condensate line connection Re connect the condensate line A two inch diameter condensate drain hole is available on both the left and right side of the back of the unit The condensate line must be connected to the main drain system in accordance with any local codes and general good piping practice For units equipped with an optional condensate pump the maximum lift is 15 feet 20 gph Electrical Electrical wiring should be done in accordance with all applicable national and local codes It is the responsibility of the electrical contractor to adhere to such codes The warranty will be voided if wiring is not in accordance with the specifications of the unit Use copper conductors only All power supply wiring must be capable of carrying the maximum current load under no fault conditions at the stipulated voltages Care should be taken to avoid significant voltage drops A knockout with strain relief is provided on the electrical box
12. for power wiring Each unit is supplied with terminal strip for power connection INSTALLATION The instructions detailed below are for the Installation of a Standard unit Accommodations and adjustments will be required for the usage of additional unit accessories Should assistance be required for the installation of these additional items consult Modine at the phone number listed on the back cover of this manual 1 Check the walls and floor for straightness and check to ensure that the wall is at a right angle to the floor Should there be any irregularity the placement of foam tape on the outside edges of the unit will fill the gaps between the unit and the wall allowing for the use of a sealant to create a smooth transition from the unit to the wall 2 Remove the backing strip from the gasket on the wall sleeve Place the unit in the correct location ensuring a tight seal with the wall sleeve and the wall 3 Place the unit in position and use the leveling legs to ensure that the unit is level in both directions and also plumb Remove the front kick panel to access the leveling legs see Figure 4 1 Make sure that the foam gasket on the back of the unit forms a tight seal between the unit and the wall 4 After adjusting for any irregularity in the location site locate the position for the wall mounting bolts see Figure 8 1 The cabinet must be secured to the back wall The back of the cabinet has four holes two on e
13. is not recommended Hand start all screws If electric drills are used set at the lowest possible torque Preparation 1 Before installation ensure that the correct electrical power supplies are available for the unit 2 Each unit requires an independently fused and isolated power supply 3 If the installation has multiple units check that unit model and tagging corresponds with the installation plans Please contact your Airedale representative immediately if discrepancies are noted 4 Check to make sure that the units will have adequate installation clearance around them 5 Note that units with cooling coils will have a condensate connection at the rear and suitable provisions should be made for draining If multiple units tee into a common drain manifold it must be sized to ensure free draining with all the units in operation 6 For units with outside air inspect the wall sleeve installation for gaps that would allow leakage of outdoor air into the space All joints and abutments should be sealed with waterproof sealant 7 The cabinet must be secured to the back wall The back of the cabinet has four holes two on each side The type of materials used for the walls will determine the type of fastener to use Use 3 8 diameter fasteners with 1 1 2 diameter washers Securing the cabinet to the wall helps to reduce movement and noise due to vibration 14 500 2 Drainage Units with cooling coils have a condensate
14. order replacement parts contact technicalservice na modine com or call 1 800 828 4328 to be under warranty the following details are required to process this requirement Figure 25 1 Model Nomenclature Valedictorian Model Nomenclature 2 3 o 1 72 3 14 1 16 17 18 19 20 Digit 1 Product V Valedictorian Unit Ventilator Digit 2 Style S F Floor Mounted Flat Top S Floor Mounted Slope Top Digit 3 Cooling Control CC V Valve Control F Face and Bypass Digits 4 5 6 amp 7 Unit Size US 750 750 cfm 1000 1000 cfm 1250 1250 cfm 1500 1500 cfm Digit 8 Inlet Air IA Floor Mounted Units Only Digit 2 F or S 2178 Not available the Slope Top unit D E Digit 9 Discharge Air DA Floor Mounted Bar Grill and Screen Digit 27 F or S Opening Only field duct connection Not available for the Slope Top unit Digit 10 Cooling Option CO 0 None 2 2 Row Chilled Water Hot Water 2 Pipe 3 Chilled Water Hot Water 2 Pipe 4 4Row Chilled Water Hot Water 2 Pipe 5 Direct Expansion Cooling Only Digit 11 Heating Option HO 0 None 1 1 Row Hot Water Coil 2 2 Row Hot Water Coil 3 Steam Coil 1 Row Digit 12 Coil Access CA A Right Hand Coil s B Left Hand Coil s C RH Cooling LH Heating D LH Cooling RH Heating Digit 13 Coil Positions CP 0
15. tools designed for refrigerants other than R410A Inspection On Arrival 1 Inspect unit upon arrival In case of damage report it immediately to transportation company and your local factory sales representative 2 Check rating plate on unit to verify that power supply meets available electric power at the point of installation 3 Inspect unit received for conformance with description of product ordered including specifications where applicable THIS MANUAL IS THE PROPERTY OF THE OWNER PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB SPECIAL PRECAUTIONS SPECIAL PRECAUTIONS THE INSTALLATION AND MAINTENANCE INSTRUCTIONS IN THIS MANUAL MUST BE FOLLOWED TO PROVIDE SAFE EFFICIENT AND TROUBLE FREE OPERATION IN ADDITION PARTICULAR CARE MUST BE EXERCISED REGARDING THE SPECIAL PRECAUTIONS LISTED BELOW FAILURE TO PROPERLY ADDRESS THESE CRITICAL AREAS COULD RESULT IN PROPERTY DAMAGE OR LOSS PERSONAL INJURY OR DEATH THESE INSTRUCTIONS ARE SUBJECT TO ANY MORE RESTRICTIVE LOCAL OR NATIONAL CODES HAZARD INTENSITY LEVELS 1 DANGER Indicates an imminently hazardous situation which if not avoided WILL result in death or serious injury 2 WARNING Indicates a potentially hazardous situation which if not avoided COULD result in death or serious injury 3 CAUTION Indicates a potentially hazardous situation which if not avoided MAY result in minor or moderate injury 4 IMPORTANT Indicates a situation
16. unit operating pressures Add charge and check for leaks Clogged filter s Replace filter s as necessary Clogged liquid line filter drier Replace drier with a direct replacement Follow proper procedure Improper expansion valve setting or valve malfunctioning 14 500 2 Check operation and superheat settings 5 Low restricted supply airflow 5 Check diffusers filters and supply motor to ensure appropriate airflow 23 TROUBLESHOOTING Table 24 1 Troubleshooting General Possible Cause Possible Remedy F DX Split Units Only Low Discharge Pressure G DX Split Units Only High Suction Pressure H DX Split Units Only High Discharge Pressure I Condensate Leaking J Microprocessor Not Working Faulty Operation 24 Low refrigeration charge 1 Measure unit operating pressures Add charge and check for leaks Faulty compressor 2 Replace compressor Faulty reversing valve Evacuate system and replace reversing valve Outdoor air sensor out of calibration Excessive load Check outdoor air sensor for accuracy Check occupancy of space Expansion valve malfunctioning overfeeding Check remote bulb is secure and vapor sealed and regulate superheat Faulty compressor Improper installation of wall sleeve and louver Replace compressor Ensure splitter plate is in contact with the back of
17. 00 2 DIMENSIONS 16 5 8 DEPTH FLAT UNIT Figure 11 1 Dimensions 16 5 8 Depth Flat Top Unit AIR KICK PANEL REMOVABLE PANEL TYP EACH END PIPE TUNNEL N 10 56 TYP 2 56 TYP 10 00 TYP REMOVABLE BOTTOM PANEL 102 Pd EACH END TYP A i 11 50 TYP 16 63 2 06 V L TYP 6 60 TOP VIEW 4 E BARSTOCK DISCHARGE GRILLE W1 12 34 TYP MOTOR 1 09 UNIT SHOWN WITH 1 09 END PANELS V 257 CONTROL BOX ELECTRICAL BOX FRONT SERVICE PANELS N 3 18 FRONT VIEW N RECESSED RETURN 7 PIPING ACCESS EACH END 1 OPENING iy 7 00 B r 13 75 21 22 18 20 i TYP TYP i TYP F 1 1 0 88 OUTSIDE AIR 0 62 49 MOUNTING aso OPENING HOES es 2 Dm 4 PLACES REAR VIEW Table 11 1 Unit Width Dimensions Dimensions inches p PIPE 4 TUNNEL 26 97 Y 16 13 65 RIGHT SIDE VIEW 30 15 14 500 2 11 DIMENSIONS 21 7 8 DEPTH FLAT TOP UNIT Figure 12 1 Dimensions 21 7 8 Depth Flat Top Unit 10 00 6 36 REMOVABLE BOTTOM PANEL TYP 74 EACH END i 7 1 5 5 36 1150 21 83 266 1 78 BA
18. 14 500 2 DINE 5H103442A1 January 2014 INSTALLATION AND SERVICE MANUAL A WARNING Improper installation adjustment alteration service or maintenance can cause property damage injury or death and could cause exposure to substances which have been determined by various state agencies to cause cancer birth defects or other reproductive harm Read the installation operating and maintenance instructions thoroughly before installing or servicing this equipment IMPORTANT The use of this manual is specifically intended for a qualified installation and service agency A qualified installation and service agency must perform all installation and service of these appliances VFV VSV and VSF units with DX evaporator coils contain the refrigerant R 410A Review the R 410A Material Safety Data Sheet MSDS for hazards and first aid measures Refrigerant charging should only be carried out by an EPA certified air conditioning contractor Valedictorian Vertical Unit Ventilator Models VFV VFF VSV and VSF C y Intertek A WARNING This unit contains R 410A high pressure refrigerant Hazards exist that could result in personal injury or death Installation maintenance and service must only be performed by an HVAC technician qualified in R 410A refrigerant and using proper tools and equipment Due to much higher pressure of R 410A refrigerant DO NOT USE service equipment or
19. CAL BOX FRONT SERVICE PANELS 348 FRONT VIEW Z RECESSED RETURN AIR KICK PANEL 6 61 REMOVABLE PANEL 10 56 TYP TYP EACH END N PIPE TUNNEL ES 7 2 56 TYP UN PIPING ACCESS E OPENING EACH END 7 00 TYP 1 13 00 13 75 48 20 222 1 1 0 88 OUTSIDE AIR er YP MOUNTING ap HOLES TYP 4 PLACES 2 78 TYP REAR VIEW Table 13 1 Unit Width Dimensions Dimensions inches U NUM S 14 500 2 33 15 30 15 L 13 65 zl RIGHT SIDE VIEW 13 DIMENSIONS 21 7 8 DEPTH SLOPE UNIT Figure 14 1 Dimensions 21 7 8 Depth Slope Top Unit REMOVABLE BOTTOM PANEL EACH END UNIT SHOWN WITH 1 09 END PANELS CCN CONTROLLER OPTIONAL 22 03 TOP VIEW N 186 BARSTOCK DISCHARGE GRILLE 1 09 w1 SEE NOTE 2 12 34 TYP PANELS SEE NOTE 3 13 00 18 20 TYP TYP FRONT SERVICE 0 88 MOUNTING HOLES TYP 4 PLACES Model Size MOTOR 2 23 i ELECTRICAL BOX 3 14 1 FRONT VIEW RECESSED RETURN AIR KICK PANEL 6 61 REMOVABLE PANEL 10 56 TYP TYP EACH END 256 TYP PIPE TUNNEL PIPING
20. EES THAT SELLER S WARRANTY OF ITS PRODUCTS TO BE FREE FROM DEFECT IN MATERIAL AND WORKMANSHIP AS LIMITED HEREIN SHALL BE IN LIEU OF AND EXCLUSIVE OF ALL OTHER WARRANTIES EITHER EXPRESS OR IMPLIED WHETHER ARISING FROM LAW COURSE OF DEALING USAGE OF TRADE OR OTHERWISE THERE ARE NO OTHER WARRANTIES INCLUDING WARRANTY OF MERCHANTABILITY OR FITNESS FOR PURPOSE WHICH EXTEND BEYOND THE PRODUCT DESCRIPTION CONFIRMED BY BUYER AND SELLER AS OF THE DATE OF FINAL AGREEMENT This warranty is void if the input to the product exceeds the rated input as indicated on the product serial plate by more than 5 on gas fired and oil fired units or if the product in the judgment of SELLER has been installed in a corrosive atmosphere or subjected to corrosive fluids or gases been subjected to misuse negligence accident excessive thermal shock excessive humidity physical damage impact abrasion unauthorized alterations or operation contrary to SELLER S printed instructions or if the serial number has been altered defaced or removed BUYER AGREES THAT IN NO EVENT WILL SELLER BE LIABLE FOR COSTS OF PROCESSING LOST PROFITS INJURY TO GOODWILL OR ANY OTHER CONSEQUENTIAL OR INCIDENTAL DAMAGES OF ANY KIND RESULTING FROM THE ORDER OR USE OF ITS PRODUCT WHETHER ARISING FROM BREACH OF WARRANTY NONCONFORMITY TO ORDERED SPECIFICATIONS DELAY IN DELIVERY OR ANY LOSS SUSTAINED BY THE BUYER Component Applicable Models Heat Exchangers Gas Fired Unit
21. OPTIONAL SUPPLEMENTAL WARRANTY Provided a supplemental warranty has been purchased Seller extends the warranty herein for an additional four 4 years on certain compressors Provided a supplemental warranty has been purchased Seller extends the warranty herein for an additional four 4 years or nine 9 years on certain heat exchangers EXCLUSION OF CONSUMABLES amp CONDITIONS BEYOND SELLER S CONTROL This warranty shall not be applicable to any of the following items refrigerant gas belts filters fuses and other items consumed or worn out by normal wear and tear or conditions beyond Seller s control including without limitation as to generality polluted or contaminated or foreign matter contained in the air or water utilized for heat exchanger condenser cooling or if the failure of the part is caused by improper air or water supply or improper or incorrect sizing of power supply APPLICABLE WARRANTY PERIOD TEN YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER WITHIN TEN YEARS FROM DATE OF RESALE BY BUYER OR ANY OTHER USER WITHIN TEN YEARS FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION OR WITHIN ONE HUNDRED TWENTY SIX MONTHS FROM DATE OF SHIPMENT FROM SELLER WHICHEVER FIVE YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER WITHIN FIVE YEARS FROM DATE OF RESALE BY BUYER OR ANY OTHER USER WITHIN FIVE YEARS FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION OR WITHIN SI
22. RSTOCK DISCHARGE GRILLE w1 21 88 4 12 34 MOTOR 167 109 1 3 10 UNIT SHOWN p id WITH 1 09 END PANELS T F F T L 16 40 CONTROL TUNNEL 17 PANEL 27 08 ELECTRICAL BOX 30 26 545 FRONT SERVICE PANELS FRONT VIEW REMOVABLE PANEL EACH END N PIPE TUNNEL _ RECESSED RETURN 3 12 RIGHT SIDE VIEW 18 90 AIR KICK PANEL 10 56 2 56 TYP PIPING ACCESS OPENING 13 00 18 20 Y EACH END 7 00 TYP OUTSIDE AIR 0 88 MOUNTING OPENING CONDENSATE LINE HOLES TYP OPENING x2 4 PLACES e REAR VIEW Table 12 1 Unit Width Dimensions Dimensions inches sr mm m e 5 so z 2 78 TYP 12 14 500 2 DIMENSIONS 16 5 8 DEPTH SLOPE TOP UNIT Figure 13 1 Dimensions 16 5 8 Depth Slope Top Unit 10 00 REMOVABLE BOTTOM PANEL EACH END TYP 6 60 TOP VIEW E 178 BARSTOCK DISCHARGE GRILLE W1 j 12 34 MOTOR 109 UNIT SHOWN E WITH 1 09 END PANELS 357 CONTROL BOX ELECTRI
23. S Motor 5H103428 Actuator 58103450 autotransformer 58103429 Relay 50103439 Freeze Stat 5HI00879 CH Coil 58103434 3 Filter 2x 5H103408 4 Coil 58103432 3 RT ETL LISTED CONFORMS 9 5 5 ANSI UL STD 1995 3087217 CERTIFIED CAN CSA STD 22 2 NO 236 X SCPPEOTHS 26 14 500 2 THIS PAGE LEFT BLANK INTENTIONALLY 14 500 2 27 COMMERCIAL WARRANTY Seller warrants its products to be free from defects in material and workmanship EXCLUSIVE HOWEVER of failures attributable to the use of materials substituted under emergency conditions for materials normally employed This warranty covers replacement of any parts furnished from the factory of Seller but does not cover labor of any kind and materials not furnished by Seller or any charges for any such labor or materials whether such labor materials or charges thereon are due to replacement of parts adjustments repairs or any other work done This warranty does not apply to any equipment which shall have been repaired or altered outside the factory of Seller in any way so as in the judgment of Seller to affect its stability nor which has been subjected to misuse negligence or operating conditions in excess of those for which such equipment was designed This warranty does not cover the effects of physical or chemical properties of water or steam or other liquids or gases used in the equipment BUYER AGR
24. Smoke detector tested Freeze stat set at 35 F and tested Freeze stat auto or manual reset Hot Water Steam valve tested Fire stat link tested OA Retum air Damper tested Unit Type Drawing Sales Rep Condensate drain installed correctly Gravity flow or Pump assisted electrical connection tight All Mechanical connections tight Supply Return and Outside air vents unobstructed Initial Test Pressure Final Test Pressure Test Duration FLA Make Medium Low Medium Low un Primary _______ Secondary Model S TP Address Neuron ID ae L 31 C C 1 L 1 1 1 L 1 1 C 1 1 C 1 TAG ID 1 1 1 Device instance Psig Psig Psig 14 500 2 START UP SHEET EXAMPLE Figure 10 1 Start Up Sheet EXAMPLE Page 2 MODINE Modine Valedictorian Unit Ventilator Start up Sheet Outdoor Unit Check List DX Units Oniy Brand Serial Number _________ Supply Voltage Primary Suction Pressure Psig Liquid Pressure Psig Superheat Compressor Outdoor Air Temperature oF Indoor Air Temperature oF Technicians Notes Customer Feedback Please relay any comments regarding quality and service Service Technician Service Company L j Service Company Telephone j 10 14 5
25. Units with One Coil 1 Preheat Pos 1 Heating Coil Pos 2 Cooling Coil 2 Reheat Pos 1 Cooling Coil Pos 2 Heating Coil Digit 14 Outside Air Damper Assembly OA A Standard Damper C Insulated Damper E No Damper Recirculating Unit Digit 15 Supply Voltage SV 115 60 208 60 C 230 60 1 H 277 601 Digit 16 Motor Type MT 1 Standard 2 High Static EC Motor Digit 17 Electrical Connection EC A Left Hand Side B Right Hand Side Digit 18 Controls C A Field Installed B Factory DDC C Factory Carel D Free Issue Digit 19 Case Gauge CG A Standard Exterior 16 Ga Interior 16 Ga Heavy Duty Exterior 14 Ga Interior 16 Ga Digit 20 Filtration F 65 75 Arrestance Standard B MERV 8 25 SERIAL PLATE Figure 26 1 Serial Plate EXAMPLE Modine Manufacturing Co DINE 1500 DeKoven Avenue Racine WI 53403 2552 M ADE 1 5 4 1 866 823 1631 VALEDICTORIAN UV 1 HOT WATER COIL FV1250AA41A0 F PSIG 909999 411060135209 0007 uz pressure 115V 60Hz 1g Electrical Ratings ELECTRIC REHEAT NCA MOP CAPACITY AMPS 3 05 3 72 15a a n a Supply Fan Motor 2 1 FLA 1 4 HP Wiring Diagram 3H007186 ER PRESSION STATIQUE EXTERIEUR MAXIMUM P0 CD E DEGAGEMENT POUR MATIERES COMBUSIBLES MAXIMUM DISCHARGE TEMPERATURE TEMPERATURE DE DEPART MAXIMUM REPLACEMENT PART
26. XTY SIX MONTHS FROM DATE OF SHIPMENT FROM SELLER WHICHEVER OCCURS FIRST Burners Low Intensity Infrared Units Other Components excluding Heat Exchangers Coils Condensers Burners Sheet Metal Heat Exchangers Coils Indoor and Outdoor Duct Furnaces and System Units PSH BSH Steam Hot Water Units Oil Fired Units Electric Units Cassettes Vertical Unit Ventilators Geothermal Units Compressors Vertical Unit Ventilators Geothermal Units Burners High Intensity Infrared Units Sheet Metal Parts All Products TWO YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER WITHIN TWO YEARS FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION OR WITHIN THIRTY MONTHS FROM DATE OF SHIPMENT FROM SELLER WHICHEVER OCCURS FIRST ONE YEAR FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER WITHIN ONE YEAR FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION OR WITHIN EIGHTEEN MONTHS FROM DATE OF SHIPMENT FROM SELLER WHICHEVER OCCURS FIRST As Modine Manufacturing Company has a continuous product improvement program it reserves the right to change design and specifications without notice lt MODINE Modine Manufacturing Company 2014 Commercial Products Group Modine Manufacturing Company 1500 DeKoven Avenue Racine WI 53403 Phone 1 866 823 1631 toll free www modinehvac com schoolsystems
27. ach side The type of materials used for the walls will determine the type of fastener to use Use 3 8 diameter fasteners with 1 1 2 diameter washers Securing the cabinet to the wall helps to reduce movement and noise due to vibration Drill the appropriate sized holes for the fasteners that are to be utilized and insert the anchors that are to be used 5 Make the condensate drain connection and the electrical connections to the unit START UP PROCEDURE Figure 4 1 Leveling Leg Location cor o Leveling Leveling Leg Leg Piping Installation Direct Expansion DX Coils CAUTION 1 Units with DX evaporator coils contain the refrigerant R 410A Review the R 410A Material Safety Data Sheet MSDS for hazards and first aid measures 2 Refrigerant charging should only be carried out by an EPA certified air conditioning contractor Note R 410A refrigerant is the only approved refrigerant for this system The unit should be piped up in accordance with good refrigeration and or plumbing practices The outdoor condensing unit must be connected to the indoor unit coil using field supplied refrigerant grade ACR copper tubing that is internally clean and dry Units should be installed only with the tubing sizes for the approved system combination as specified in Table 20 1 Condensing unit is typically factory charged for a 15 foot lineset For additional lineset lengths pl
28. adjustable proportional band on the Carel controller is set to a default 1 F example damper is 50 open when room temperature is 0 5 F from setpoint When the damper is in full bypass position 2V all return and outside air bypasses the heating coil When the damper is in full face position 5 5V all return and outside air passes through the heating coil If for any reason the supply air temperature drops below 55 F adjustable the heating valve shall open if equipped and the face and bypass damper shall modulate to maintain 55 F Hot Water and Chilled Water 2 Pipe with Valve Control Units desiring valve control to provide heating and cooling on a single water coil 2 pipe system and not using Carel controls shall use a spring return normally open modulating valve operated by a proportional signal 2 10VDC or a tri state 24VAC signal Units with Carel controls shall use a modulating control valve with a proportional signal On a call for heating or cooling depending on the season the valve SEQUENCE OF OPERATION shall open proportionally based on how many degrees the room temperature is from the setpoint The adjustable proportional band on the Carel controller is set to a default 1 F example valve is 50 open when room temperature is 0 5 F from setpoint If for any reason the supply air temperature drops below 55 F adjustable the water valve shall modulate open to maintain 55 F On 2 pipe units not having C
29. arel controls or not connected to a network an optional aquastat is recommended to prevent inadvertent changeover of heating cooling modes Hot Water and Chilled Water 2 Pipe with Face amp Bypass Control Units desiring face and bypass control to provide heating and cooling on a single water coil 2 pipe system shall modulate the face amp bypass damper via a spring return actuator controlled by a proportional signal 2 5 5V The face amp bypass damper regulates the amount of return air and outside air passing through the water coil On a call for heating or cooling depending on the season the damper shall open proportionally based on how many degrees the room temperature is from the setpoint The adjustable proportional band on the Carel controller is set to a default 1 F example damper is 50 open when room temperature is 0 5 F from setpoint When the damper is in full bypass position 2V all return and outside air bypasses the water coil When the damper is in full face position 5 5V all return and outside air passes through the water coil If for any reason the supply air temperature drops below 55 F adjustable the water valve shall open if equipped and the face and bypass damper shall modulate to maintain 55 F 2 Position Control Valves Optional spring return 2 position control valves can be used to control the end of cycle flow on both chilled and hot water coils On a chilled water a normally
30. ation Supply Fan The supply fan shall run at all times when unit is in occupied mode When in unoccupied mode the supply fan shall run only a call for heating or cooling The supply fan speed be adjusted using the standard equipped manual 3 speed switch If equipped with Modine Control System the supply fan is programmed to run for 2 minutes adjustable after the heating or cooling cycle ends Freeze Stat Optional On units equipped an adjustable auto resetting freeze stat is factory set to trip at 35 F If the coil temperature reaches the limit and the freeze stat trips it shall automatically reset when the coil temperature rises 5 F above the setpoint The freeze stat shall be wired so that upon tripping power is removed from the supply fan the outside air damper closes and either the HW valve opens model digit 32V or the face amp bypass damper goes to full bypass model digit 3 F Outside Air and Return Air Dampers Optional The outside air and return air dampers control the mixture of return air and outside air drawn through the unit Both dampers are linked together and are controlled by an actuator requiring a 2 6VDC proportional signal At 2V the dampers are positioned for full return air and no outside air At 6V the dampers are positioned for full outside air and no return air The outside air damper shall open to a minimum position to provide ventilation requirements when the room is occupied When i
31. ble 15 2 Chilled Water Coil with Pre Heat Piping Locations Dimensions inches ce ee er 2 Row 4 Row 2 Row 4 Row For Hot Water Pre Heat piping location see Figure 18 1 For Steam Pre Heat Piping location see Figure 19 1 14 500 2 15 PIPING LOCATIONS Figure 16 1 DX Cooling Size 750 Only with Optional Reheat Piping Locations Size 750 DX Cooling Coil Only or DX Cooling Coil with Reheat Coil LEFT HAND CONNECTIONS RIGHT HAND CONNECTIONS AIR FLOW AIR FLOW l 10 16 7 50 3 37 RA I LL Liquid Line SL Suction Line Table 16 1 DX Cooling Coil Piping Locations Dimensions inches B C D 16 5 8 14 25 11 25 217 8 14 25 16 50 10 00 For Hot Water Reheat piping location see Figure 18 2 For Steam Reheat piping location see Figure 19 2 Figure 16 2 DX Cooling Size 750 Only with Pre Heat Piping Locations Size 750 DX Cooling Coil with Pre Heat Coil Only LEFT HAND CONNECTIONS RIGHT HAND CONNECTIONS AIR FLOW AIR FLOW 120 16 65 10 66 3 37 ls RA RA el pod 11 1 LL Liquid Line SL Suction Line Table 16 2 DX Coil with Pre Heat Piping Locations Dimensions inches B C D 16 5 8 14 25 11 25 217 8 14 25 16 50 10 00 For Hot Water Pre Heat piping location see Figure 18
32. cal iid ook Hd Was e 3 the rating plate on the appliance for complete appliance 3 model number serial number and company address Piping Installation 2 mr nd py ion oo s Saga aaa nord 4 Any substitution of parts or controls not approved by the Piping Insulation a bak bah REPRE RE PR npn 5 factory will be at the owner s risk Ml EXC Rm 5 Terminal Strip Connections 5 Start Up Procedure cese reae ew ne RR Red 6 Pre Start 6 Unit Start Up 6 Typical Sequence of Operation 7 8 Start Up Sheet 9 10 Dimensions x y qu d nore Fun UR AR AR S 11 14 Piping LOCATIONS xe RR EE CR SER dal pe aes 15 19 Technical Data se eae RR eee RR RR nma 20 Component Layout enses ke ERR RE XD Pr aS 21 Maintenance konnaa reete KC UY Y u Qe Roni dd 22 Troubleshooting 23 24 Replacement Parts Model 25 Serial Plate NAR RT Pd 26 Warranty sues saec eh ees qux Rund x Rc E e Nd e dod 28 14 500 2 UNIT LOCATION Table 3 1 SI Metric Conversion Factors To Obtain To Convert Multiply To Obtain To Convert Multiply
33. closed valve is used On a hot water coil or 2 pipe changeover system a normally open valve is used The 2 position valve used on a chilled water coil shall open on a call for cooling when the outside air temperature is greater than 55 F adjustable When the outside air temperature is less than 55 F the valve should remain closed and free cooling shall be utilized The 2 position chilled water valve shall be closed when the 2 position hot water valve is open when equipped The valve is controlled by a 24VAC digital output The 2 position valve used on a hot water coil shall open on a call for heating The valve shall always open when the outside air temperature drops below 407 This is to prevent the coil from freezing or nuisance tripping of the freeze stat The 2 position hot water valve shall be closed when the 2 position chilled water valve is open if equipped The valve is controlled by a 24VAC digital output The 2 position valve used on a 2 pipe changeover system shall operate like the 2 position chilled water valve in cooling mode and like the 2 position hot water valve in heating mode Condensate Pump Optional On units equipped with a condensate pump the pump shall begin to run once the condensate reaches a set level The pump comes with an internal safety switch that can be wired either normally open or normally closed The safety switch shall be wired such that the chilled water valve closes when it trips On Carel
34. d View BACK ADAPTER ASSEMBLY DISCHARGE AIR PANEL ASSEMBLY COIL ASSEMBLY MOTOR ASSEMBLY BASE ASSEMBLY OA DAMPER ASSEMBLY Figure 21 2 Component Layout Control _ Blower Panel Freeze Stat Motor Optional Face 4 Bypass Damper Actuator Field Installed Piping Outside Air Return Air Face amp Bypass Filters Blowers Electrical Box with Power Damper Actuator Damper Connection Disconnect Switch and Optional Optional 3 Speed Fan Switch 14 500 2 MAINTENANCE MAINTENANCE A WARNING When servicing or repairing this equipment use only factory approved service replacement parts A complete replacement parts list may be obtained by contacting Modine Manufacturing Company Refer to the rating plate on the appliance for complete appliance model number serial number and company address Any substitution of parts or controls not approved by the factory will be at the owner s risk A CAUTION Do not attempt to reuse any mechanical or electrical controllers which have been wet Replace defective controller IMPORTANT To check most of the possible remedies in the troubleshooting guide listed in Tables 23 1 amp 24 1 refer to the applicable sections of the manual The routine care and maintenance of this unit will increase longevity provide for the proper operational performance and reduce the probability of fail
35. door evaporator coil temperatures below its set point the compressor will be disabled Chilled Water with Face amp Bypass Control Units equipped with a chilled water coil and face amp bypass control shall modulate the face amp bypass damper via a spring return actuator controlled by a proportional signal 2 5 5V The face amp bypass damper regulates the amount of return air and outside air passing through the chilled water coil On a call for cooling the damper shall open to the face of the coil proportionally based on how many degrees the room temperature is from the setpoint The adjustable proportional band on the Carel controller is set to a default 1 F example damper is 50 open when room temperature is 0 5 F from setpoint When the damper is in full bypass position 2V all return and outside air bypasses the chilled water coil When the damper is in full face position 5 5V all return and outside air passes through the chilled water coil Hot Water with Face amp Bypass Control Units equipped with a hot water or steam coil and face amp bypass control shall modulate the face amp bypass damper via a spring return actuator controlled by a proportional signal 2 5 5V The face amp bypass damper regulates the amount of return air and outside air passing through the heating coil On a call for heating the damper shall open proportionally based on how many degrees the room temperature is from the setpoint The
36. ease refer to manufacturer s charging chart See the installation and maintenance manual provided with the condensing unit for installation evacuation and system charge information Piping Installation Chilled Hot Water Coils CAUTION 1 Units not approved for use in potable water systems 2 Hot water supplied to the hot water heating option must not exceed 200 F temperature or 125 PSIG pressure 3 Do not attempt to reuse any mechanical or electrical component which has been wet Such component must be replaced 1 Chilled water and hot water coils are supplied from the factory with unions Field installed piping can be mounted to the supplied unions with 3 4 female sweat connections Factory assembled piping packages are supplied with matching unions on the coil and the piping assembly 2 Install shut off valves in lines to and from each coil to allow maintenance or replacement of unit without shutting down and draining entire system see Figures 4 2 and 4 3 3 Include a circuit setter in the return line for water flow regulation 4 A drain valve hose bib should also be provided for each coil to allow removal of water from the coil if located in an area subject to freezing 5 It is advisable to use a pipe line strainer before each coil 6 Provide adequate pipe hangers supports or anchors to secure the piping system independently of the coil Figure 4 2 Typical 2 Way Piping Installation AIR VENT
37. etector shall shut down power to the supply fan and close all dampers upon the detection of a fire Smoke Detector Optional Units equipped with an optional smoke detector shall shut down power to the supply fan and close all dampers upon the detection of smoke The LED on the smoke detector will stay on solid Cycle the power Off and then On to reset 14 500 2 START UP SHEET EXAMPLE Figure 9 1 Start Up Sheet EXAMPLE Page 1 MODINE Modine Valedictorian Unit Ventilator Start up Sheet This document should be returned to Modine within 30 days of start up to validate warranty Date Job Reference Senal sos nstaller 1 Installation Checks Unit mounted level Unit floor mounted Unit ceiling mounted Wall sleeve correct Any visual damage Dry Nitrogen Pressure Test DX Units Only Supply Fan Motor Motor Size HP Ld Amps High RPM Main Voltage XFMR Volta Controller information Make 1 BACnet Card Cid Loncard Occupied Set point Ld Unoccupied Set point Temperatures Return Air Temp oF Supply Air Temp 0 Out door Air Temp Component Tests If Applicable Airflow Switch tested Aqua Stat tested Chilled Water valve tested Condensate pump tested Remote shutdown link tested Face amp Bypass damper tested Drain pan high limit switch tested Fresh air amp and retum air damper tested Electromechanically tested Filter change switch tested
38. filter s and replace if necessary Slide the filter s out of the track and replace with new filter s see Figure 22 1 The filters are positioned under the coil assembly Never run the unit without filters Check the control wiring and sensors Check the operation and sequencing of controls and ensure that all relevant set points are recorded Check all warning labels to ensure they can be read and that they have not been removed Inspect condensate hose for any possible clogs Check for general obstructions to inlet and discharge openings Oil the fan motor by adding 3 drops of SAE 20 weight non detergent oil to the two oil holes on the fan motor Fill the fan shaft bearing cup with oil The fan shaft bearing is located in the housing at the opposite end of the fan shaft from the motor see Figure 22 2 Additional bearing cup in middle of unit on 1250 and 1500 CFM units and is accessible through the front panel Figure 22 2 End Shaft Bearing Cup Location Fan Shaft 22 14 500 2 TROUBLESHOOTING Table 23 1 Troubleshooting General Possible Cause Possible Remedy A Unit Not Operating Power On B Unit Operating No Mechanical Heating Cooling C No Indoor Fan D Hot Water Chilled Water Valve Not Operational Option E DX Split Units Only Low Suction Pressure LP Switch Tripped Unit mounted disconnect in the OFF posi
39. l down This switch is automatic reset Loose control wiring connections Inspect connections beginning with compressor output from the microprocessor Tripped circuit breakers Low temperature unit lockout Reset the tripped circuit breaker s Consult microprocessor setpoints DX Split Units Only Compressor faulty Replace compressor Condensate pan pump float switch tripped Motor tripped on internal overload Check condensate pan pump and piping for blockage Let motor cool down and reset possible bad motor or blocked filter Fan not required Consult microprocessor documentation or set thermostat to ON Check if unit is in unoccupied and standby mode No power to the fan Check to make sure plugs are locked in place and all pins are secure Check for 24V control signal Current sensor fault Heating not required Make sure sensor is functioning correctly Consult microprocessor documentation Loose wiring connections Inspect connections beginning with valve output from the microprocessor Check to ensure 24V supply power is present at actuator Faulty heating actuator Isolation valves are open Replace actuator if faulty Check for additional external isolation valves Check for DC control signal Low refrigeration charge Check for 2 10vDC signal from microprocessor Measure
40. ling units only 8 Check that the plug is installed for the condensate connection that is not being used 9 Check that the motor is secure and the shaft and blower set screws are tight Rotate the blower shaft by hand 10 Check that the filters have been properly installed Unit Start Up Procedure Note For models with DX Cooling see the installation and maintenance manual provided with the condensing unit for start up information 1 DX Cooling models only Ensure that the condensing unit start up procedure has been carried out as detailed in the condensing unit installation and maintenance manual 2 DX Cooling models only The compressor should be isolated by removing the connection at the Y1 terminal on the indoor unit Main power can now be applied to the indoor and outdoor units A system electrical check can now be carried out Switch the 3 speed switch to position 1 2 or 3 Switch the disconnect switch to the ON position 5 Confirm that the blower motor is rotating in the correct direction and blowing air out of the supply air grill 6 Units with Chilled Water Hot Water and Steam coils only Ensure all valves are open to the unit 7 Units with Chilled Water and Hot Water only Check water flow rates and pressure drops and compare to design 8 Check that the dampers are not obstructed and move through their full range of motion 6 14 500 2 START UP PROCEDURE Typical Sequence of Oper
41. n heating mode if the space temperature is more than 4 F from the heating setpoint the outside air damper shall fully close The outside air damper shall also be fully closed during unoccupied mode If the unit is equipped with a sensor the outside air damper shall modulate open proportionally to compensate for the CO levels in the room The dampers can act as economizers for free cooling If cooling is required and the outside air temperature is below the economizer outside air lockout temperature 60 F recommended and above 35 F adjustable the outside air damper shall modulate open On units with a Carel controller the outside air damper shall fully open when the room temperature is above the setpoint by more than 1 F adjustable Within 1 F the proportional band adjusts the outside air damper When the unit is in free cooling water valves shall be fully closed and if equipped the face amp bypass damper should move to full bypass position The outside air lockout temperature on Carel units is factory set to 60 F and is adjustable Chilled Water with Valve Control Units with a chilled water coil and non Carel controls desiring valve control shall use a non spring return modulating valve operated by either a proportional 2 10VDC or a tri state 24VAC signal Units with a chilled water coil and Carel controls desiring valve control shall use a modulating valve requiring a tri state signal When the room temperatu
42. re is above the cooling setpoint the valve shall open proportionally according to the adjustable proportional band The adjustable proportional band on the Carel controller is set to a default 1 F example valve is 50 open when room temperature is 0 5 F from setpoint The Carel controller will not allow the chilled water valve to open when the outside air temperature is below 55 F 14 500 2 Hot Water or Steam with Valve Control Units with a hot water or steam coil and non Carel controls desiring valve control shall use a spring return normally open modulating valve operated by a proportional signal 2 10VDC or a tri state 24VAC signal Units with Carel controls desiring valve control shall use a modulating control valve with a proportional signal When the room temperature is below the heating setpoint the valve shall open proportionally according to the adjustable proportional band The adjustable proportional band on the Carel controller is set to a default 1 F example valve is 50 open when room temperature is 0 5 F from setpoint If for any reason the supply air temperature drops below 55 F adjustable the valve shall modulate open to maintain 55 F Direct Expansion DX Cooling Control When the room temperature is above the cooling setpoint the compressor will be energized The compressor will de energize when the room temperature falls below the cooling setpoint If the factory installed low limit stat detects in
43. s except PSH BSH OCCURS FIRST Heat Exchangers Low Intensity Infrared Units Compressors Condensing Units for Cassettes BUYER S REMEDY FOR BREACH OF WARRANTY EXCLUSIVE OF ALL OTHER REMEDIES PROVIDED BY LAW IS LIMITED TO REPAIR OR REPLACEMENT AT THE FACTORY OF SELLER ANY COMPONENT WHICH SHALL WITHIN THE APPLICABLE WARRANTY PERIOD DEFINED HEREIN AND UPON PRIOR WRITTEN APPROVAL BE RETURNED TO SELLER WITH TRANSPORTATION CHARGES PREPAID AND WHICH THE EXAMINATION OF SELLER SHALL DISCLOSE TO HAVE BEEN DEFECTIVE EXCEPT THAT WHEN THE PRODUCT IS TO BE USED BY BUYER AS A COMPONENT PART OF EQUIPMENT MANUFACTURED BY BUYER BUYER S REMEDY FOR BREACH AS LIMITED HEREIN SHALL BE LIMITED TO ONE YEAR FROM DATE OF SHIPMENT FROM SELLER FOR GAS FIRED PRODUCTS INSTALLED IN HIGH HUMIDITY APPLICATIONS AND UTILIZING STAINLESS STEEL HEAT EXCHANGERS BUYER S REMEDY FOR BREACH AS LIMITED HEREIN SHALL BE LIMITED TEN YEARS FROM DATE OF SHIPMENT FROM SELLER These warranties are issued only to the original owner user and cannot be transferred or assigned No provision is made in these warranties for any labor allowance or field labor participation Seller will not honor any expenses incurred in its behalf with regard to repairs to any of Seller s products No credit shall be issued for any defective part returned without proper written authorization including but not limited to model number serial number date of failure etc and freight prepaid
44. the louver blade and the unit to ensure no re circulation of exhaust air takes place Dirty condenser coils Clean condenser coil System overcharged Remove excess refrigerant Noncondensables in system Evacuate refrigerant circuit and recharge Condenser fan speed is too slow cooling mode Condensate drain not piped up Not applicable refer to manufacturer s Technical Manual Pipe condensate drain Condensate pan line plugged Clean drain pan and piping Condensate pump optional faulty Loose sensor wire connectors Check operation of condensate pump Replace pump if necessary Inspect sensor connections at the microprocessor Strategy file corrupted Consult microprocessor documentation Loose control wiring 14 500 2 Check 24V power supply wiring REPLACEMENT PARTS REPLACEMENT PARTS For ease of identification when ordering replacement parts or contacting the factory about your unit please quote the unit type and unit serial number This information can be found on the serial plate attached to your unit see Figure 25 1 When a component part fails a replacement part should be obtained through our Parts Department If the part is considered 1 Full description of part required including Unit s part number if known 2 The original equipment serial number 3 An appropriate purchase order number To
45. tion Turn the disconnect switch to the ON position Unit mounted 3 speed selector switch in the 0 position Turn the 3 speed selector switch to the 1 2 or 3 position Unit switched OFF in the microprocessor Consult microprocessor documentation Delay on start set incorrectly Unit not in occupied mode Consult microprocessor documentation Consult microprocessor documentation and consult microprocessor occupied setpoints Fire smoke alarm tripped Tripped circuit breakers De energize and re energize unit Reset the tripped circuit breaker s Loose mains or control wiring With power OFF from distribution panel inspect the field wiring connections in the electrical panel Occupancy sensor malfunction Inspect connections beginning with sensor input from the microprocessor 10 Hot water freeze protection optional stat tripped Heating cooling not required 10 Manually reset at stat Verify applicable set point with return air temperature No output from microprocessor Consult microprocessor documentation DX Split Units Only HP LP pressure safety switch es tripped open Inspect high and low system pressures and wiring Check for dirty filters in Heat Pump mode DX Split Units Only Internal overload switch on compressor tripped open Wait for compressor motor windings to coo
46. unit filled with water in a building without heat unless antifreeze has been added All refrigeration checks must be made by a qualified R 410A refrigeration technician Do not release refrigerant to the atmosphere When adding or removing refrigerant all national state province and local laws must be followed To check most of the Possible Remedies in the troubleshooting guide listed in Tables 23 1 amp 24 1 refer to the applicable sections of the manual Table of Contents Inspection on 1 hazard to persons and property General Information uno e ba eee ew he pn 1 Any original factory wiring that requires replacement must Special Precautions ds sg ce tes ase aad sasa wd 2 be replaced with wiring material having a temperature Hazard Intensity Levels 2 rating of at least 105 C SI Metric Conversion 3 Ensure that the supply voltage to the appliance as Unit aa alee a ama kmb Sus 3 indicated on the serial plate is not 5 greater than rated Handling sis 3 voltage Preparation Re bw you alkene bea 3 When servicing Or repairing this equipment use only Drainage UNTEN 3 factory approved service replacement parts Refer to Electri
47. units the switch shall be wired normally closed into a digital input of the controller If the unit is also equipped with a condensate pan float switch both switches shall be wired in series Condensate Pan Float Switch Optional On units equipped with a condensate pan float switch the normally closed switch shall be wired such that the chilled water valve closes or the outdoor condensing unit is disabled DX Cooling Models Only upon tripping On Carel units the Switch shall be wired normally closed into a digital input of the controller If the unit is also equipped with a condensate pump both the condensate pump limit switch and condensate pan float Switch shall be wired in series Sensor Optional An optional sensor with a range of 0 2000 ppm producing an output signal of 4 20mA is available to modulate the outside air damper If equipped the outside air damper shall modulate open proportionally to compensate for the CO levels in the room On Carel units if the level is 800 ppm or less adjustable the damper shall remain at its normal minimum position If the level increases above 800 ppm the damper begins to open according to the proportional band The proportional band is set to a default of 200 ppm and is adjustable Using the default once the level reaches 1000 ppm the damper shall be at its maximum ventilation position Fire Detector Optional Units equipped with an optional fire d
48. ure Once the unit is operational it will be necessary to perform certain routine maintenance service checks Following is a Maintenance Schedule with the recommended checks If your unit is equipped with special features there may be additional checks that are required Consult Modine for assistance The use of torque screwdrivers on panel cover or component mounting screws is not recommended Hand start all screws If electric drills are used set at the lowest possible torque Figure 22 1 Filter Location Access Access to the unit is gained by opening the front panels and hinged top side covers using the key that is provided Maintenance Schedule Every ONE 1 MONTH With the Disconnect in the position check the filter s and replace if necessary Slide the filter s out of the track and replace with new filter s See Figure 22 1 The filters are positioned under the coil assembly Never run the unit without filters Every SIX 60 MONTHS Before the heating and cooling season 1 Check for correct fan operation no excessive noise or vibrations With the Disconnect Switch in the OFF position 2 Inspect all electrical circuits including optional components and sensors for loose connections and signs of overheating arcing chafing or other physical damage The electrical control section should also be wiped clean of all dirt that may affect the unit operation Check the
49. which if not avoided MAY result in a potential safety concern DANGER Appliances must not be installed where they may be exposed to potentially explosive or flammable atmosphere WARNING Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage All appliances must be wired strictly in accordance with the wiring diagram furnished with the appliance Any wiring different from the wiring diagram could result in a CAUTION Ensure that the supply voltage to the appliance as indicated on the serial plate is not 5 less than the rated voltage Units not approved for use in potable water systems Hot water supplied to the hot water heating option must not exceed 200 F temperature or 125 PSIG pressure Do not operate the units within steam pressure greater than 10 PSIG Steam pressure must be 10 PSIG or lower to avoid excessive discharge air temperatures that could cause burns or personal injury Do not overcharge the refrigeration system This can lead to elevated compressor discharge pressure and possibly flooding the compressor with liquid Do not attempt to reuse any mechanical or electrical component which has been wet Such component must be replaced IMPORTANT Start up and adjustment procedures should be performed by a qualified service agency No water flow can cause a freeze condition resulting in damage to the coil Never leave the
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