Modine Ductless Split Installer`s Guide - H
Contents
1. 43 4 L 32 3 8 28 11 16 D E 12 9 16 28 9 16 17 8 9 13 16 8 504 5 SeEPNOAPWONS gt DX Suction Line DX Liquid Line HW Coil Inlet Optional HW Coil Outlet Optional Fresh Alr Intake x3 Branch Duct Opening x4 Pump Inspection Port Condensate Drain Control Panel Mounting Bracket VIEW 13 DIMENSIONS LARGE CHASSIS Figure 14 1 Dimensions Large Chassis SSD SSH 30 SSD SSH 36 and SSD SSH 42 11 8 49 316 I ZA 43 4 28 11 16 a 447 162. L 129016 28 9 16 25 8 11 1 2 32 3 8 A S A CN N 178 23 4 94 234 4 m 1 1 5 14 8 504 5 e DX Suction Line DX Liquid Line HW Coil Inlet Optional HW Coil Outlet Optional Fresh Alr Intake x3 Branch Duct Opening x4 Pump Inspection Port Condensate Drain Control Panel Mounting Bracket 27 8 6 516 E i bod D gt 2718 2 718 3 1 2 4718 6 7 16 o TECHNICAL DATA DX COOLING ONLY AND HEAT PUMP UNITS Table 15 1 Technical Data DX Cooling Only and Heat Pump Units SSD SSH 18 SSD SSH 24 SSD SSH 30 SSD SSH 36 SSD SSH 42 Nominal Cooling Capacity 1 19200 23000 31400 38200 42500 Nominal Heating Capacity 2 Nominal System SEER 3 HSPF Construction Material Fascia High Impact Polystyrene Material Chassis Galvanized Steel Color Fascia Pearl Grey Fire rating UL94 VO Evaporator Type Finned Tube Quantity 1 Face Area 5 2 Nominal Airflow 920 800 680 Discharge 4 way Fan Type Centrifugal Quantity 2 Diameter i 14 Horsepower per fan 1 8 Refrigeration Number of Circuits Refrigerant Type Weights Weight Chassis 97 Weight Fascia 21 Connections 4 Suction i 3 4 Liquid i 3 8 Condensate ID i 3 8 Filt
3. THERMAL INNOVATION A WARNING Improper installation adjustment alteration service or maintenance can cause property damage injury or death Read the installation operating and maintenance instructions thoroughly before installing or servicing this equipment IMPORTANT 1 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 2 SSD and SSH units contain the refrigerant R 410A Review the R 410A Material Safety Data Sheet MSDS for hazards and first aid measures 3 Refrigerant charging should only be carried out by an EPA certified air conditioning contractor 8 504 5 5H101548A2 September 2012 INSTALLATION AND SERVICE MANUAL Ductless Mini Split Ceiling Cassette Models SSD SSH and SCW US Listed 3087217 Refrigerant R 410A Refrigerant R 410A is a colorless volatile liquid with ethereal and faint sweetish odor It is a non flammable material Overexposure may cause dizziness and loss of concentration At higher levels Central Nervous System CNS depression and cardiac arrhythmia may result from exposure Vapors may displace air and can cause asphyxiation in confined spaces At higher temperatures gt 250 C decomposition products may include Hydrofluoric Acid HF and carbonyl halides Review the R 410A Material Data Safe
4. Microprocessor Controlled Remote Control via Infrared or Pendant SUERTE WM Evora CA 7 Carel Controller ETV Bachan c tiste u SSD 18EM 5 Ceiling Cassette Unit DX Cooling 18 000 re ANSI UL STD 1995 Nomina BTU H Cete CERTIFIED TO Electro Mechanical Control CAN CSA STD C22 2 NO 236 lagram 2 _ blank u S9SSTOTHS Ag Ag 26 8 504 5 THIS PAGE INTENTIONALLY LEFT BLAN 8 504 5 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
5. 208 230V 1Ph 60Hz 1 3 1 4 10 208 230V 1Ph 60Hz 5 0 23 1 28 8 30 115V 1Ph 60Hz 2 5 2 8 10 2 Standard unit fitted with optional booster transformer for connection to a 115V electrical supply Electric heat not available in conjunction with this option 8 504 5 EXPLODED UNIT DRAWING amp PARTS LIST SCW2 8 amp SCW2 12 Figure 20 1 Exploded Unit Drawing amp Parts List SCW2 8 amp SCW 2 12 Co 20 Cassette Chassis Chilled Water Coil Electric Heater Element Assembly Condensate Tray Condensate Tray Supports 2 Condensate Pump High Level Switch Condensate Pump Assembly Shown Inverted 11 12 13 14 15 16 Fan Motor Assembly Coil Return Air Sensors Microprocessor Only Grille Airedale Label Air Deflector Vanes 4 Freeze Protection Thermostat 22 Electro Mechanical version only Filter Fascia Assembly 8 504 5 Wall Mounted Controllor 17 18 19 20 23 24 Receiver Microprocessor Only Terminal Rail Relays amp Timer Micro amp Electro Mechanical Version Control Box Lid Control Box PCB Controller Microprocessor Only Coil Support Brackets Wall Mounted Controller Electro Mechanical Only Remote Handset Microprocessor Only EXPLODED UNIT DRAWING amp PARTS LIST SSD SSH SCW 18 42 Figure 21 1 Exploded Unit Drawing amp Parts List SSD SSH SCW 18 42 6 5 2 y 9 19
6. Fresh Air Intake x2 Pump Inspection Port Condensate Drain Control Panel Mounting Bracket VIEW A A DIMENSIONS MEDIUM CHASSIS Figure 11 1 Dimensions Medium Chassis SCW 18 and SCW 20 1 11 16 a 25 8 gi ts 91 2 23 4 32 3 8 je 28 11 16 E 1 32 5 16 22 m 33 16 T 1113 16 tc dur a We 3 od n 5 3 8 8 11 16 p al 31 3 8 U b Ya 8 13 16 M N YQ M e L 42946 10 28 9 46 11346 a a rima 45 8 1 S 4 uns E E gu LEM J 1 q 234 11 234 M 4718 8 504 5 Or CW Coil Inlet CW Coil Outlet HW Coil Inlet Optional HW Coil Outlet Optional Fresh Air Intake x3 Branch Duct Opening x4 Pump Inspection Port Condensate Drain Control Panel Mounting Bracket VIEW A A 11 DIMENSIONS LARGE CHASSIS Figure 12 1 Dimensions
7. Large Chassis SCW 33 SCW 36 j 37 j 1 CW Coil Inlet 2 CW Coil Outlet 3 HW Coil Inlet Optional 4 Outlet Optional FHIIH mammam 5 Fresh Air Intake x3 At 6 Branch Duct Opening x4 MSS 7 Pump Inspection Port LH 8 Condensate Drain N 9 Control Panel 10 Mounting Bracket 49 3 16 Il f i DJ AOOO LJ EY 218 M 550 32 3 8 28 11 16 elo 5 3 x 4 o 19 5 8 VIEW 431 2 o b Yu H 5 H 3 5 8 b z 127 16 e Ep 338 NI A 3 Se Se loos o 1 m ay H 813 16 m 12916 2896 I 17 8 r DIMENSIONS MEDIUM CHASSIS Figure 13 1 Dimensions Medium Chassis SSD SSH 18 and SSD SSH 24 Z5 6 SA 11416
8. SSD SSH Units 13 Dimensions Large Chassis SSD SSH Units 14 Technical Data DX Cooling Only and Heat Pump 15 Units Technical Data Condensers for DX Cooling Only 16 Units Technical Data Condensers for Heat Pump Units 17 Technical Data Chilled Water Units 18 UNIT LOCATION Electrical Data Ceiling Cassettes 19 Exploded Unit Drawing amp Parts List SCW 2 8 amp SCW 2 12 20 Exploded Unit Drawing amp Parts List SSD SSH SCW 18 42 21 Maintenance Indoor Unit 22 Maintenance Schedule 22 Filter Removal and Cleaning 22 Recommended Spares 22 Disassembly Procedure 22 Fan Removal 22 Condensate Tray Removal 22 Condensate Pump Removal 22 Troubleshooting Indoor Unit 23 26 Replacement Parts 26 Warranty 28 Table 3 1 SI Metric Conversion Factors To Convert To Obtain To Convert Multiply By Multiply By 0 305 0 00379 0 249 32 x 5 9 1 06 kPa feet 1 The appliance must be installed on a structure that is suitable to support the total weight of the appliance piping refrigerant and condensate 2 Piping electrical panel and condensate pump access panel should be readily accessible for maintenance purposes A clearance of 2 feet is recommended around the electrical panel and condensate pump access panel 3 The unit should not be positioned less than 5 ft from a wall or similar obstruction or in a position where the discharge air could blow directly on to the thermost
9. Tube Round Tube Round Tube Coil Construction Plate Fin Plate Fin Plate Fin Plate Fin Plate Fin Connections 1 Suction i 3 4 3 4 3 4 3 4 7 8 Liquid i 3 8 3 8 3 8 3 8 3 8 Refrigerant Charge Condenser factory charge 9 12 Charge Required Per Foot of Pipework 0 67 1 Refrigerant line sizes should always match condensing unit connection sizes 8 504 5 17 TECHNICAL DATA CHILLED WATER UNITS Table 18 1 Technical Data Chilled Water Units SCW2 8 SCW242 SCW18 SCW 20 Nominal Cooling Capacity 1 6 601 11 091 17 592 19 087 Construction Material Fascia High Impact Polystyrene Material Chassis Galvanized Steel Color Fascia Pearl Grey Fire rating UL94 VO Chilled Water Coil Type Finned Tube Quantity 1 1 Face Area z 2 8 2 8 Nominal Airflow 630 700 530 630 500 530 Discharge 4 way 4 way Unit water Volume 0 45 0 45 Fan Type Centrifugal Quantity 1 1 Diameter i 15 15 Horsepower per fan 1 8 1 8 Weights Weight Chassis 64 64 Weight Fascia 18 18 Connections Chilled Water Inlet i 718 7 8 Chilled Water Outlet i 718 7 8 Condensate ID i 3 8 3 8 Filtration Type Wire Framed Periframe Quantity 2 2 Arrestance 80 80 Condensate Pump Maximum Head i 30 30 Nominal Flowrate 0 1 0 1 Options Electric Heating Capacity 3 0 3 0 HW Heating Capacity 2 29 258 30 946 HW Coil Connection OD i 5 8 5 8 Max Branch Duct Connections 2 2 Branch Duct Diameter 5 5 Ducted Air Volume
10. other avenues of investigation are exhausted Fans Will Not Run Loose wire Faulty fan capacitor Faulty fan motor Faulty PC Board Check all fan wire connections Use unit s electrical schematic to verify that fan is wired correctly Check fan capacitors replace if necessary Check fan motor protector for open circuit replace if necessary On electro mechanical units check for a signal at G terminal On micro units check for steady green light on display panel 8 504 5 23 TROUBLESHOOTING INDOOR UNIT Table 24 1 Troubleshooting Indoor Unit TROUBLE POSSIBLE CAUSE POSSIBLE CAUSE No Cooling Incorrect MODE setting Check that the transmitter MODE is set to Cooling or micro units only Auto Mode Set point too high Check the set point on the transmitter or wall mounted thermostat and adjust if necessary Compressor protection delay Check that the green On Off LED is not flashing If it micro units only is flashing wait for ten minutes then re check if cooling is operating Applies to chilled water units also Compressor protection delay Wait for ten minutes and then re check if cooling is Electro mechanical DX units only operating Dirty or blocked air filter See section Coil Freeze High condensate level trip Drain the condensate tray and investigate See section Condensate High Level Indoor coil temperature too low Check refrigerant charge by measuring operating pressures Check fi
11. supplies care must be taken to ensure that the outdoor unit is isolated whenever the indoor unit power is removed Failure to do so may result in freeze ups and other damage to the unit Chilled Water Unit Control Circuit Checks A thorough pipe work check and pressure test should be performed before the unit controls are set up 1 Isolate the unit from the chilled water supply A system electrical check can now be carried out 2 Switch on the indoor unit via the infrared pendant transmitter or wall mounted thermostat and check that the fan cycles correctly Note in some models there is a 2 minute fan run on time to remove residual heat from the unit if the unit is switched off during the heating mode 3 On models with microprocessor controls check that the High Medium and Low fan speeds are operating correctly by changing the fan speed via the transmitter 4 On medium and large size units check that the motorized vane sweep functions correctly by toggling the function on or off either via the transmitter micro units or via the toggle Switch on the side of the electrical panel lid electro mechanical units 5 On micro controlled units should it be required check that the built in timer function is programmed and operating correctly When the timer is activated the red LED on the fascia display panel should be lit 6 Check the operation of the condensate pump by pouring 7 8 ounces of water down the pump outlet sw
12. water or steam or other liquids or gases used in the equipment BUYER AGREES 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 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 Component Applicable Models Heat Exchangers Gas Fired Units except PSH BSH TEN YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER WITHIN TEN YEARS FROM DATE OF
13. 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 6 2 Terminal Strip Fascia Assembly Once the services have been connected the four 4 fascia mounting bolts can be unscrewed approximately 1 from the condensate tray support channels INSTALLATION START UP PROCEDURE The fascia can now be unpacked for fitting to the unit chassis Ensure the black fir tree fasteners holding the fascia polystyrene are pushed in firmly in case of transit vibration If a fascia aperture needs blanking off then take one of the polystyrene blanking pieces and push it into the recess in the polystyrene fascia insulation See Figure 7 1 Install the fascia by removing the inlet grilles and filters locating the four fascia mounting bolts on the chassis through the four keyhole brackets on the fascia and then sliding the fascia sideways until it locks into position Note Up to two non adjacent sides can be blanked off Figure 7 1 Fascia Blanking Piece Fascia Blanking Piece Side view of fascia Note Make sure the foam insulating strip profile on the fascia matches the square and angled corners of the unit housing Before tightening the fascia to the unit connect the two halves of the vane motor s plug and socket connection medium and large size un
14. 3 Fresh Air Connections 1 3 1 3 Fresh Air Duct Diameter 3 3 Fresh Air Volume 4 60 65 1 Nominal cooling capacity based on 80 67 F DB WB and water temperature of 45 F inlet 55 F outlet 2 Nominal heating capacity based on 70 60 F DB WB and water temperature of 180 F inlet 160 F outlet 3 Maximum air volume available through one branch duct 6 long with Cassette fan s at high speed and corresponding fascia aperture closed 4 Maximum fresh air through all knockouts connected to one 10 long duct with fan at high speed 18 8 504 5 ELECTRICAL DATA CEILING CASSETTES Table 19 1 Electrical Data Ceiling Cassettes Chassis Size Standard Unit Data Power Supply Full Load Amps Minimum Circuit Amps MCA Recommended Fuse With Optional Electric Heat 1 Power Supply Model Size 2 8 amp 2 12 Small 2 x 2 208 230V 1Ph 60Hz 0 65 0 74 10 208 230V 1Ph 60Hz 18 20 amp 24 Medium 3 x 3 208 230V 1Ph 60Hz 0 85 0 99 10 208 230V 1Ph 60Hz 3 0 Electric Heat Capacity 1 5 Full Load Amps 7 2 13 9 Minimum Circuit Amps MCA 8 9 19 3 Recommended Fuse with Heat 15 20 With Optional Booster Xfmr 2 Power Supply Full Load Amps Minimum Circuit Amps MCA Recommended Fuse 115V 1Ph 60Hz 1 3 1 5 10 115V 1Ph 60Hz 1 7 2 0 10 1 Standard Unit fitted with optional electric heating elements Available with 230V model units only 30 33 36 amp 42 Large 3 x 4
15. 3 16 Py 11 MN y EA E Ta 15 1 Cassette Chassis 11 Vane 2 Evaporator Coil 12 Vane Motor Assembly 3 Condensate Tray 13 Filter 4 Condensate Tray Support 14 Fascia 5 High Level Switch Shown Inverted 15 Remote Handset 6 Condensate Pump Shown Inverted 16 Control Box Lid T Fan amp Motor Assembly 17 Control Box PCB 8 Fan Inlet Ring 18 Control Box 9 Grille 19 Bracket 10 Infrared Receiver 20 Expansion Valve 8 504 5 21 MAINTENANCE INDOOR UNIT DISASSEMBLY PROCEDURE MAINTENANCE INDOOR UNIT A WARNING When servicing or repairing of this equipment use only factory approved service replacement parts 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 A IMPORTANT To check most of the Possible Remedies in the troubleshooting guide listed in Tables 23 1 through 26 1 refer to the applicable sections of the manual Maintenance Schedule Every THREE 3 MONTHS 1 Check the air filter condition Clean if necessary see Filter Removal and Cleaning below Every SIX 6 MONTHS 1 2 3 Same as three 3 months PLUS Clean condensate tray with biocid
16. Do not attempt to reuse any mechanical or electrical controllers which have been wet Replace defective controller IMPORTANT 1 Make sure the ceiling grid is supported separately from the appliance The ceiling must not be supported by any part of the appliance fascia or any associated wiring or pipe work 2 Start up and adjustment procedures should be performed by a qualified service agency 3 To check most of the Possible Remedies in the troubleshooting guide listed in Tables 23 1 through 26 1 refer to the applicable sections of the manual Table of Contents EPA certified air conditioning contractor 8 504 5 Inspection on Arrival Special Precautions Hazard Intensity Levels SI Metric Conversion Factors Unit Location Unpacking Blank Off Pieces Positioning Ceiling Opening Sizes Positioning Electro Mechanical Thermostat Installation Hanger Bolts Installation Guides Condensate Piping Duct Collars Piping Installation Piping Insulation Wiring Terminal Strip Connections Fascia Assembly Start Up Procedure Pre Start Checks DX Unit Control Circuit Checks Chilled Water Unit Control Circuit Checks Sequence of Operation Start Up Sheet Example 0000000 444 Dimensions Small Chassis SCW Units 10 Dimensions Medium Chassis SCW Units 11 Dimensions Large Chassis SCW Units 12 Dimensions Medium Chassis
17. R 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 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 Compressors Vertical Unit Ventilators Burners High Intensity Infrared Units Sheet Metal Parts All Products 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 Modine Manufacturing Company has a continuous product improvement program and therefore reserves the right to change design and specifications without notice RR MD GM V d r L Ni M E RGANO gt THERMAL INNOVATION Modine Manufacturing Company 2012 Commercial Products Group Modine Manufacturing Company 1500 DeKoven Avenue Racine WI 53403 Phone 1 866 828 4328 HEAT www modinehvac com Litho in USA
18. 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 OCCURS FIRST 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 TO 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 OPTIONAL SUPPLEMENTAL WARRANTY Provided a supplemental warranty has been purchased S
19. al 1 2 Disconnect the condensate pump and float switch wires from inside the electrical panel Unscrew the three M4 screws holding the pump inspection plate in place and pull the pump and mounting bracket away from the chassis while feeding the pump wires between condensate tray and insulation TROUBLESHOOTING INDOOR UNIT Table 23 1 Troubleshooting Indoor Unit ROUBLE POSSIBLE CAUSE Red Alarm LED flashing Faulty float switch t 1 second intervals Microprocessor units only Fan Trip Indoor coil sensor failure Connected to micro terminals T3 Red Alarm LED flashing Return Air Sensor failure t 5 second intervals Connected to micro terminals T1 Microprocessor units only Both Yellow Heat amp Cool LEDs flashing Microprocessor units only Control Board PCB battery failure Unit Will Not Operate No power mains power No 24V control circuit power Control circuit disabled by unit protection device Infrared receiver failure micro units only Transmitter failure micro units only Microprocessor failure micro units only POSSIBLE REMEDY See section Condensate High Level See section Fans Will Not Run After checking the above use the unit wiring schematic to isolate the indoor coil sensor and measure the resistance Sensor is 50K 72 F type Check and replace if necessary Use the unit wiring schematic to isolate the return air sensor and measu
20. ans See section Fans Will Not Run Remove power from unit and reset manual overheat cut out by rubbing DO NOT PRESS Consult Factory for instruction if necessary Investigate and replace if necessary Check signals to relay and check action of relay contacts Replace relay or PCB if necessary 8 504 5 25 TROUBLESHOOTING REPLACEMENT PARTS MODEL NUMBER DESIGNATION SERIAL PLATE Table 26 1 Troubleshooting Indoor Unit Continued ROUBLE ELECTRIC OVERHEAT The electric heat circuit contains one automatic reset and one manual reset overheat cut out protection switch for each electric heat element fitted to the unit The cut outs are wired in line with the main power flowing in each element and operate as described below 1 Auto Cut out if the auto cut out trips the electric heat is temporarily disabled until the unit temperature falls and causes the overheat cut out to automatically reset Manual Cut out if the manual cut out trips the electric heat is disabled until the unit temperature falls and the overheat cut out is manually reset It will typically take five minutes for the unit temperature to fall sufficiently to allow the cut out to be reset The cut out should only be reset by a qualified and competent electrician and with the mains power switched off Ensure the elements have cooled sufficiently REPLACEMENT PARTS Figure 26 2 Serial Plate EXAMPLE For ease of identification when order
21. at 4 Theunit should not be positioned directly above any obstructions 5 The unit must be installed square and level 6 The condensate drain should have sufficient downward slope 1 in 100 in any horizontal run between unit and drain Maximum condensate pump lift is 30 7 There should be sufficient room above the false ceiling for installing the unit Minimum distance as shown in Figure 3 1 and Table 3 2 8 In case of high humidity clogged or damaged condensate piping incorrect installation or faulty condensate pump water may drip from the unit Do not 37 3 gallons install the appliance where dripping water can cause 0 000293 Horsepower damage 0 000472 inches ft hr 0 00000787 CFM ft min 0 0283 0 000472 UNIT LOCATION DANGER Appliances must be installed where they may be exposed to potentially explosive or flammable atmosphere Unpacking Remove the banding straps and lift the cardboard lid Remove the fascia packed in bubble wrap and polystyrene packing pieces to expose the unit When removing the unit chassis from the box the four corner brackets should be utilized for lifting In order to protect the fascia from dirt and damage it should be returned to the box until it is ready to be installed Blank Off Pieces When branch ducting is to be used polystyrene pieces for blanking off fascia openings are inc
22. at from the unit if the unit is switched off during the heating mode On models with microprocessor controls check that the High Medium and Low fan speeds are operating correctly by changing the fan speed via the transmitter On medium and large size units check that the motorized vane sweep functions correctly by toggling the function on or off either via the transmitter micro units or via the toggle Switch on the side of the electrical panel electro mechanical units On micro controlled units should it be required check that the built in timer function is programmed and operating correctly When the timer is activated the red LED on the fascia display panel should be lit START UP PROCEDURE 7 Check the operation of the condensate pump by pouring 7 8 ounces of water down the pump outlet switch the unit on select cooling mode and the lowest possible temperature set point then observe the water being pumped from the unit 8 Where fitted check the operation of the hot water valve or the electrical heat elements by switching the system to the heating mode and selecting the highest possible temperature set point 9 The compressor signal Y1 disconnected from the indoor unit in step 1 can now be re connected and main power applied to the system Note 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
23. ay from the cassette See Figure 4 3 2 Adjust the height of the cassette until the guide is level with the bottom of the false ceiling Figure 4 3 Installation Guide Position NW Sere itt dx zd OUTER CASE INSULATION NN S 2505 59595 200 NN nnt 50006 5 CASSETTE CASE n NS 2 NS oxy 06 Ses NS um 555 bse INNER CASE INSULATION NN nee ed 54 E TAB FALSE CEILING GUIDE IN POSITION 3 Secure the unit in position with locknuts and washers on both sides of the unit bracket Ensure the threaded rod does not protrude more than 2 below the mounting bracket as shown in Figure 5 1 INSTALLATION Figure 5 1 Threaded Rod Dimension Condensate Piping The unit is supplied with a 3 8 ID flexible hose for connection to copper or plastic drain piping When installing the unit the following points should be remembered 1 Maximum pump lift is 30 2 The highest point in the condensate piping should be as close to the unit as possible See Figure 5 2 Figure 5 2 Condensate Piping INCORRECT CORRECT Condensate piping should slope downwards in the direction of water flow with a minimum gradient of 1 in 100 There must not be any uphill gradients other than in the first 30 of piping from the unit When multiple units are connected to a common condensate drain ensure the drain is large en
24. e suitable for polystyrene Clean fascia Every TWELVE 12 MONTHS 1 2 3 4 Same as six 6 months PLUS Check all electrical connections for security Check condensate pump operation Check the heating and cooling action to ensure proper operation Filter Removal and Cleaning 1 2 22 Disconnect power Unclip the catches along the edge of each grille and allow them to hang from the fascia by the molded plastic hinges located along the opposite edge If desired the grilles be removed from the fascia completely The filter can now be easily slid out of the small plastic retaining clips on the back of each grille Gently vacuum clean the filters on a medium vacuum power When cleaned the filters can be replaced by reversing steps 2 to 4 8 504 5 Recommended Spares One complete set of air filters DISASSEMBLY PROCEDURE Disconnect power supply before disassembly to prevent electrical shock and injury from moving parts Fan Removal 1 2 Unclip the grille catches and remove the grille s from the fascia a For model sizes 2 8 amp 2 12 only remove the fascia by loosening the four fascia mounting bolts and then slide the fascia horizontally until it releases from the chassis Drain the condensate tray by removing the small black rubber drain plug catching the condensate if any in a suitable container Remove the self tapping Screws securing the two insulated metal condensate t
25. eller 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 The above referenced 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 Heat Exchangers Low Intensity Infrared Units Compressors Condensing Units for Cassettes 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 SIXTY 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 TWO YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHE
26. etween the condensate outlet and the site installed condensate gravity drain Condensate pump blocked or Clear any blockages and ensure that power is being failed applied to the pump If the pump still does not run replace the pump Float switch failure Check that the float switch operates correctly and is properly positioned Float switch is normally closed opens on rise of water level 24 8 504 5 TROUBLESHOOTING INDOOR UNIT Table 25 1 Troubleshooting Indoor Unit ROUBLE Condensate High Level micro units red alarm LED will flash at one second intervals POSSIBLE CAUSE Maximum pump lift exceeded POSSIBLE REMEDY Check that the condensate pump head is no greater than 30 See page 5 of this manual for installation guide Blocked kinked condensate pipe See section Water Leaking From Unit Condensate pump blocked or failed Coil freeze up See section Water Leaking From Unit A coil freeze condition may have caused excessive condensate to collect in the drip tray See section Coil Freeze No Heating Hot Water No Heating Electric Heat Cooling coil freeze protection thermostat tripped Auto reset when freeze cleared Dirty or blocked air filter System head pressure set too low Loss of refrigerant Incorrect MODE setting micro units only Set point too low Blocked or dirty filters causing low airflow No hot water pumps failed Faulty valve ac
27. ial Chassis Pre Treated Galvanized Painted Steel Color Champagne Dimensions Weights Height includes Fan Guard i 28 28 28 28 30 Width i 23 23 23 29 29 Depth i 2375 23 23 29 29 Weight 97 129 131 145 173 Compressor Type Rotary Recip Recip Recip Recip Crankcase Heater Fitted No No No No No Condenser Plate Fin Plate Fin Plate Fin Plate Fin Plate Fin Coil Construction Microchannel Microchannel Microchannel Microchannel Microchannel Connections 1 Suction i 5 8 3 4 3 4 3 4 7 8 Liquid i 3 8 3 8 3 8 3 8 3 8 Refrigerant Charge Condenser factory charge 3 3 3 13 3 14 Charge Per Foot of Pipework 0 58 0 62 0 62 1 Refrigerant line sizes should always match condensing unit connection sizes 16 8 504 5 TECHNICAL DATA CONDENSERS FOR HEAT PUMP UNITS Table 17 1 Technical Data Condensers for Heat Pump Units Cassette Unit SSH 18 SSH 24 SSH 30 SSH 36 SSH 42 Condenser Model YHJD24 YHJD30 YHJD36 YHJD42 YHJD18 Performance Nominal System Cooling Capacity Nominal System SEER Construction Material Chassis Pre Treated Galvanized Painted Steel Color Champagne Dimensions Weights Height includes Fan Guard i 28 32 36 40 40 Width i 34 34 34 34 34 Depth i 34 34 34 34 34 Weight 172 184 196 208 208 Compressor Type Scroll Recip Recip Recip Scroll Crankcase Heater Fitted No Yes Yes Yes No Condenser Round
28. ing replacement parts or contacting the factory about your unit please quote the unit MODIN type and unit serial number This information can be found UM on the serial plate attached to your unit See Figure 26 2 18 1 When a component part fails a replacement part should be pos obtained through our Parts Department If the part is CEILING CASSETTE UNIT man v s a considered to be under warranty the following details are WATER COIL required to process this requirement SSH 24EM c ASAIR 1 Full description of part required including Unit s part 200F 125psis number if known DESIGN PRESSURE 2 The original equipment serial number 325 psic 3 An appropriate purchase order number REFRIGERANT m Voltage Rating 208 230V 1Ph 60Hz Blower Motor QTY 0 4 Figure 26 1 Model Number Designations A 1 8 HP 1 CEILING CASSETTE UNITS Wiring D Base Model 2H102 0 2 31 0 3 0113 0 SSD SSH SSD Ceiling Cassette Unit DX Cooling UNIT ELECTRECAT RATINGS or SCW SSH Ceiling Cassette Unit Heat Pump pe m SCW Ceiling Cassette Unit Chilled Water tsaz Ll Cabinet Size 2 Small Body 2 X 2 Series Medium Body 3 X 3 Series or Large Body 3 X 4 Series Model Size 8 to 42 Nominal Cooling in Mbh See Performance Data for Details Control Type a 0 Electro Mechanical Control
29. itch the unit on select cooling mode and the lowest possible temperature set point then observe the water being pumped from the unit 7 Check the operation of the chilled water valve by switching the system to the cooling mode and forcing a call for cooling 8 Where fitted check the operation of the hot water valve or the electrical heat elements by switching the system to the heating mode and forcing a call for heat 9 Allow chilled water to enter the unit and vent air from the unit by opening the 1 4 air bleed Re tighten the bleed Screw once all air has been removed 10 Repeat steps 1 4 above for all units in the same system The units are now ready for the system balance to be performed 8 Sequence of Operation Electro Mechanical Controls A 24V signal from the thermostat to terminal G supplies power the blower motor s condensate pump and vane motor if equipped A toggle Switch on the control box can be used to switch the oscillating vanes on or off The condensate pump will run continuously as long as the blower is energized A call for heating at terminal W or cooling at terminal Y will energize the water valve actuator and allow water to flow through the cassette coil When the call for heating or cooling is satisfied the valve will close If the temperature drops below the set point of the coil freeze stat the water valve with automatically open to circulate water through the coil If the condensate float s
30. its On microprocessor controlled units ensure that the display panel cable is routed to the electrical panel and securely fastened to its connector on the microprocessor circuit board Refer to the unit s electrical wiring schematic Take care to ensure that the connector is connected in the proper orientation and that the wires are not routed such that they may become trapped cut broken or chafed The fascia can now be tightened up to the unit chassis until a good seal is obtained between fascia and chassis Note Do not over tighten the bolts To do so may cause damage to the fascia With filters in place the inlet grilles can now be fitted to the fascia to complete the installation START UP PROCEDURE IMPORTANT Start up and adjustment procedures should be performed by a qualified service agency See start up sheet example Figure 9 1 8 504 5 Pre Start Checks Once installation is complete it is important that the following pre start checks are made 1 All factory and field piping is complete and tested for leaks 2 All factory and field piping is insulated where necessary 3 All fans are able to rotate freely 4 The unit and interconnecting piping have been evacuated correctly and the condensing unit service valves are open SSD and SSH units only All electrical connections both power and control are properly terminated All condensate drains are installed correctly The power supply i
31. lectric 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 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 See Table 19 1 for Electrical Data 8 504 5 This equipment in its standard form is designed for an electrical supply of 208 230V 1Ph 60Hz When connection to a 115V 1Ph 60Hz supply is necessary a factory mounted step up transformer must be fitted to the unit Any damage to or failure of units caused by incorrect wiring of the units is not covered by warranty Once the refrigeration pipe work is complete the electrical supply can be connected by routing the cable through the appropriate casing hole and connecting the supply and ground cables to the unit s power terminals A plastic sleeve is provided inside the control panel Low voltage control wiring must run through the plastic sleeve on the inside of the control panel 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 6 2 2 Remove approximately 3 8 of insulation from the end of the wire and push the stripped
32. lls and drafts from windows and doors 4 Avoid positioning near shelves and curtains as these restrict air movement 5 Avoid heat sources e g direct sunlight heaters dimmer switches and other electrical devices INSTALLATION IMPORTANT Make sure the ceiling grid is supported separately from the appliance The ceiling must not be supported by any part of the appliance fascia or any associated wiring or pipe work Hanger Bolts The hanger bolts can now be installed use 3 8 all thread rod at the centers shown in Figure 4 1 and Table 4 1 Figure 4 1 Hanger Bolt Mounting Dimensions Table 4 1 Hanger Bolt Mounting Dimensions SCW 2 8 amp 2 12 23 31 SSD SSH SCW 18 20 amp 24 SSD SSH SCW 30 33 36 amp 42 43 Check the strength of the unit mounting hanger bolts Refer to Tables 15 1 and 18 1 for unit weights 4 8 504 5 Installation Guide An installation guide is included in the Modine Owner Information packet provided with the unit Prepare the installation guide by folding the flat metal piece by hand along the perforations as shown in Figure 4 2 Figure 4 2 Installation Guide Setup FOLD SIDE BACK FOLD TAB UP The unit can now be lifted onto the hanging rods and leveled at the correct distance from the ceiling with the aid of the installation guide 1 Hold the tab on the installation guide against the bottom of the cassette case with the guide pointing aw
33. lters condition See page 22 for filter removal and cleaning instructions Sensor failure If any of the sensors are faulty the microprocessor will micro units only disable the cooling operation see AIR 8 507 Infra Red Controller Installation and Service Manual Outdoor unit tripped Check outdoor unit refer to outdoor unit troubleshooting section Faulty valve actuator Check cooling signal present at actuator Check Chilled water units only actuator by manually opening the valve Replace actuator if necessary Water Leaking From Condensate plug loose or missing Check that the rubber condensate plug is securely Unit fitted to the underside of the unit s polystyrene drip tray On some models this is located underneath the lso Cond te High condensata fascia support rails on the pump side of the unit Level PCB jumper links not set correctly Check jumper links Refer to unit wiring diagram micro units only Unit installed unevenly With fascia removed ensure that the unit chassis is level at the face both front to back and left to right to ensure correct condensate flow Condensate drain piping installed Check that the site installed condensate gravity drain incorrectly slopes downhill away from the unit See page 5 of this manual for installation guide Blocked kinked condensate pipe Check condensate piping for blocks kinks clear as necessary Check for a water tight connection b
34. luded with the fascia packing Up to two opposing sides may be blanked off See Installation Duct Collars Positioning Before any installation work commences the condensing unit location where applicable pipe work sizes and routes should be designed in accordance with good refrigeration practice The unit installation position should be selected with the following points in mind Figure 3 1 Minimum Distance to Ceiling Table 3 2 Minimum Distance to Ceiling SCW 2 8 amp 2 12 SCW 18 amp 20 SCW 33 36 amp SSD SSH 18 42 Ceiling Opening Sizes An opening in the false ceiling will then have to be cut to the size shown in Table 3 3 Table 3 3 Ceiling Opening Sizes SCW 2 8 amp 2 12 SSD SSH SCW 18 20 amp 24 SSD SSH SCW 30 33 36 amp 42 8 504 5 UNIT LOCATION INSTALLATION A cardboard template for ceiling cut out and rod positions is included with the unit Positioning Electro Mechanical Thermostat In addition to positioning the unit correctly it is very important to locate the wall mounted thermostat in the optimum position to ensure good temperature control Therefore the installation should be selected with the following points in mind 1 Position the thermostat approximately 48 inches above floor level 2 Do not position thermostat where it can be directly affected by the unit s discharge air stream 3 Avoid external wa
35. ockouts Qty 1 4 j Fresh Air Knockouts used 3 Knockouts Qty 1 3 Freeze Stat Tested Auto Reset Out 35 F in 55 F Set Points Moe J FanSpeed Tee Outdoor Unit Check List Brand wee SeaNmbe 2 C Supply Voltage Primary 1 Secondary Suction Pressure Liquid Pressure Ps Superheat Compressor E Outdoor Air Temperature Air on coil Indoor Air Temperature E amp Low Ambient Kit Fitted _ Hard Start Kit Fitted LL Crankcase Heater Fitted Technicians Customer Notes DIMENSIONS SMALL CHASSIS Figure 10 1 Dimensions Small Chassis SCW2 8 and SCW2 12 253 16 25 3 16 11146 19 9 16 N 129 16 zx 19 1 2 4 1 i 8 11 5 16 53 16 2242 524 41116 dbi Dem je ELLA 25 8 amp af No 9 10 8 504 5 e 10 11 16 17 16 CW Inlet CW Outlet HW Coil Inlet Optional HW Coil Outlet Optional Branch Duct Opening x3
36. on which if not avoided MAY result in a potential safety concern DANGER Appliances must be installed where they may be exposed to potentially explosive or flammable atmosphere A WARNING 1 Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage 2 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 3 Any original factory wiring that requires replacement must be replaced with wiring material having a temperature rating of at least 105 C 4 Ensure that the supply voltage to the appliance as indicated on the serial plate is not 5 greater than rated voltage 5 When servicing or repairing of this equipment use only factory approved service replacement parts 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 1 SSD and SSH units 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 CAUTION 3 Ensure that the supply voltage to the appliance as indicated on the serial plate is not 5 less than the rated voltage 4
37. ough to cope with the volume of condensate from all units It is also recommended to have an air vent in the condensate piping to prevent any air locks Condensate piping must not be installed where it may be exposed to freezing temperatures Duct Collars Branch duct and fresh air duct collars can be attached to the unit chassis by following the steps below 1 Up to 2 branch ducts can be attached per unit 2 Refer to the relevant dimensional drawing on pages 10 to 14 to become familiarized with knock out hole locations 8 504 5 The insulation is pre cut to aid location and removal of the relevant section Rub hand across surface of insulation to reveal exact location of knock out Remove the metal knockout from the chassis Attach the duct collar to the chassis using self tapping Screws Replace washable filter with the pleated filter provided with fresh air duct collar kit Note See Figures 10 1 11 1 12 1 13 1 and 14 1 for Branch Duct and Fresh Air Duct locations and dimensions Piping Installation SSD and SSH Units y CAUTION 1 SSD and SSH units 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 Note R 410A refrigerant is the only approved refrigerant for this system The unit should be piped up in accordance with good refrigera
38. ration Type Wire Framed Periframe Quantity 3 Arrestance 8096 Condensate Pump Maximum Head i 30 30 30 Nominal Flowrate 0 1 0 1 0 1 Options Electric Heating Capacity 3 0 5 0 5 0 HW Heating Capacity 5 41 993 56 609 59 600 HW Coil Connection OD 7 8 7 8 7 8 Max Branch Duct Connections 2 2 2 Branch Duct Diameter 5 6 6 Branch Duct Air Volume 6 130 180 200 Fresh Air Connections 1 3 1 3 1 3 Fresh Air Duct Diameter 3 3 3 Fresh Air Volume 7 65 85 90 1 Nominal cooling capacity based on 80 67 F DB WB and 95 75 F DB WB ambient 2 Nominal heating capacity based on 70 60 F DB WB and 47 43 F DB WB ambient 3 Test conditions based on ARI 210 240 4 Refrigerant line sizes should always match condensing unit connection sizes 5 6 Nominal heating capacity based on 70 60 F DB WB and water temperature of 180 F inlet 160 F outlet Maximum air volume available through one branch duct 6 long with Cassette fan s at high speed and corresponding fascia aperture closed 7 Maximum fresh air through all knockouts connected to one 10 long duct with fan at high speed 8 504 5 15 TECHNICAL DATA CONDENSERS FOR DX COOLING ONLY UNITS Table 16 1 Technical Data Condensers for DX Cooling Only Units Cassette Unit SSD 18 SSD 24 SSD 30 SSD 36 SSD 42 Condenser Model YCJD18 YCJD24 YCJD30 YCJD36 YCJD42 Performance Nominal System Cooling Capacity Nominal System SEER Construction Mater
39. ray support channels and pull the channels away from the condensate tray Pull the condensate tray downwards away from the chassis b For model sizes 18 to 42 only remove the M6 screws from the black plastic inlet ring and pull the inlet ring downwards from the condensate tray Remove the electrical panel lid and disconnect the fan connections from within the electrical panel Rotate the fan by hand until two M6 nuts are visible through the fan mounting access holes Remove the two nuts Rotate the fan 90 until the remaining two nuts are visible and remove while supporting the fan to prevent it from falling The fan can now be dropped down from the unit Condensate Tray Removal 1 2 Unclip the grille catches and remove the grille s from the fascia Remove the fascia by loosening the fascia mounting bolts and then slide the fascia horizontally until it releases from the chassis If the unit is microprocessor controlled remove the display panel cable from within the electrical panel before removing the fascia Drain the condensate tray by removing the small black rubber drain plug catching any condensate in a suitable container Remove the self tapping screws securing the two insulated metal condensate tray support channels and pull the channels away from the condensate tray Pull the condensate tray complete with inlet ring inlet ring on model sizes 18 to 42 only downwards away from the chassis Condensate Pump Remov
40. re the resistance Sensor is 50 72 type Check and replace if necessary Check battery and replace if necessary See the Infra Red Remote Controller Installation and Service Manual 8 507 for procedure Check power supply to the unit For micro units check power to the micro and check the on board micro fuse Check the 24V feed from the control transformer If not present check transformer windings replace if necessary In some models particularly electro mechanical units some protection devices such as freeze stats fan trips etc are wired in line with the 24V control circuit feed to cause the unit to shut down in an alarm condition Use the unit s wiring schematic to identify these devices and investigate accordingly If audible bleep is heard on signal transmission from transmitter and the green LED is lit or flashing receiver is OK Ifthere are no LEDs lit and the unit will not respond to the transmitter press the On Off button on the fascia display panel If the unit responds to the On Off button receiver is OK Check transmitter Try new batteries first if receiver bleeps on transmitting signal transmitter is OK If no response press On Off button on unit fascia If the unit responds to the On Off button transmitter is faulty The microprocessor is the least likely component to be at fault Investigate other possibilities in every section of this troubleshooting guide first Replace the micro only after all
41. s of the correct voltage and frequency The units are properly grounded in accordance with current electrical codes For microprocessor controlled units check that the display panel cable is properly connected to the microprocessor main circuit board and that the jumper links are correctly set refer to unit wiring schematic If the links are set incorrectly remove main power supply before making any changes For microprocessor controlled units check that the battery on the main circuit board is in place and properly connected Check also that the batteries are installed in infrared pendant transmitter When a pendant transmitter is used ensure it is properly located on to the wall mounting bracket 10 SSD and SSH Units Control Circuit Checks Note See the installation and maintenance manual provided with the condensing unit for start up information 1 Ensure that the condensing unit start up procedure has been carried out as detailed in the condensing unit installation and maintenance manual The compressor should be isolated by removing the connection at the Y 1 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 on the indoor unit via the infrared pendant transmitter or wall mounted thermostat and check that the fan cycles correctly Note in some models there is a 2 minute fan run on time to remove residual he
42. tion 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 Tables 16 1 and 17 1 Condensing units are factory charged with refrigerant for a matching indoor coil plus 15 feet of field supplied lines See the installation and maintenance manual provided with the condensing unit for installation evacuation and system charge information Piping Installation Hot Chilled Water Coils 1 Branch piping to and from the unit should include swing joints to allow for expansion and contraction of the piping without placing a strain on the unit coil Install pipe unions and 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 Figure 6 1 Include a circuit setter in return line for water flow regulation A drain valve hose bib should also be provided for each coil line to allow removal of water from the coil if located in an area subject to freezing It is advisable to use a pipe line strainer before each coil Provide adequate pipe hangers supports or anchors to secure the piping system independently of the unit INSTALLATION Figure 6 1 Hot Chilled Water Coil Piping Installation Air Vent X EH Sh
43. tuator Faulty heater relay Incorrect MODE setting micro units only Set point too low Overheat cut out tripped See also section Electric Overheat Heater element failed Faulty heater relay Freeze stat is normally closed opens during freeze Where fitted the stat will disable the cooling action sometimes the entire system during coil freeze conditions Use the unit s wiring schematic to investigate Clean replace filters as necessary See page 22 for filter removal and cleaning instructions Check condensing pressure installation of low ambient kit may be required Check system for refrigerant leaks and repair before re charging Check that the transmitter MODE is set to Heat or Auto Mode Check the set point on the transmitter or wall mounted thermostat and adjust if necessary Check filters condition See page 22 for filter removal and cleaning instructions Check hot water source and supply to unit Check actuator by manually opening and closing valve replace if faulty Check signals to relay and check action of relay contacts Replace relay or PCB if necessary Check that the transmitter MODE is set to Heat or Auto Mode Check the set point on the transmitter or wall mounted thermostat and adjust if necessary Investigate cause of over heat condition e Possible low airflow check filter condition See page 22 for filter removal and cleaning instructions e Possible fan failure Check f
44. ty Sheet MSDS for hazards and first aid measures Inspection upon Arrival 1 Inspect unit upon arrival In case of damage report immediately to transportation company and your local factory sales representative 2 Check rating plate on unit to verify that the 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 PROPERY 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 situati
45. ut Off Valve SUPPLY Union Strainer il Shut Off Valve HsH RETURN Circuit Setter Host Union t Hot Chilled Water coil X 2 Way Control Valve Hose Bib Drain Piping Insulation Refrigerant chilled water and condensate pipes should be insulated right up to the unit chassis to prevent condensation which can damage the ceiling and objects located below the piping Chilled water valves must also be insulated to prevent sweating Wiring A WARNING 1 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 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 Ensure that the supply voltage to the appliance as indicated on the serial plate is not 596 greater than rated voltage y CAUTION Ensure that the supply voltage to the appliance as indicated on the serial plate is not 5 less than the rated voltage Installation of wiring must conform with local building codes or in the absence of local codes with the National E
46. witch detects a high level of water in the condensate tray the switch will open activate the condensate pump and disable the heating cooling signal until the water level drops down to normal Micro Processor Controls See the Infra Red Remote Controller Installation and Service Manual 8 507 START UP SHEET EXAMPLE Figure 9 1 Start Up Sheet EXAMPLE 8 504 5 Cassette Start up Sheet This Document should be returned to your supplier within 30 days of start up to validate warranty Date lob Reference 05 Technician Drawing SeimNumbe id SalesRep 5 5 0 0 Installer Pre Start up Check List Unit Satisfactory Comments Dry Nitrogen Pressure Test Initial Test Pressure Psi Final Test Pressure Ld Psig Test Duration Mns PCB Jumpers links set Of On Of of TT J Ail Electrical Connections Tight Indoor Outdoor Thermostat Indoor Unit Check List Supply Voltage Primary Secondary tvm 7 Unit Level Uni Cycled Cd Fan Speeds Correct Microprocessor only Vane Sweep Operates Medium and Large Cassettes only Condensate Float Switch Operates High water level in sump disables cooling signal Condensate Pump ejects test water 10 oz Ld Condensate Drain Installed Correctly Maximum Pump Lift 30 Inch 2 Timer Functions Set Microprocessor only Supply Air Knockouts used 5 or 6 Kn
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