INSTALLATION, OPERATION, SERVICE & PARTS SUPPLEMENT
Contents
1. 2 2 26 SERVICING THE LIQUID LINE SOLENOID VALVE 2 2 2 6 1 Goll Replacements se ence epee E Reg 2 2 2 6 2 Internal Part Replacement 2 2 2 6 3 Replace Entire Valve 2 3 27 THERMOSTATIC EXPANSION VALVE Block 2 3 2 71 Replacement codd dee usyaq 2 3 28 FREEZE THERMOSTAT Freeze Stat 2 3 2 9 HIGH PRESSURE SWITCH Optional 2 3 SERVICE PARTS De eee ia ali 3 1 INTRODUCTION eno iter cet Teteres eget Dae ee ec oe E totes 3 1 CONFIGURATION IDENTIFICATION 3 1 MODEL GHART isla ura Ee 3 1 GENERALE NOTES Sie um a T lQ apan AMETE queni MUERE MEM 3 1 3 1 55 COOLING SYSTEM 12 24V COMMON PARTS 77 62186 00 THRU 04 3 2 3 2 ESS COOLING SYSTEM 12 24V MIO CONNECTIONS 77 62186 00 AND 01 3 4 3 3 ESS COOLING SYSTEM 12 24V ORS CONNECTIONS 77 62186 02 03 AND 04 3 5 3 8 ESS COOLING SYSTEM HARNESS 77 62186 00 THROUGH 032. 3 6 3 5 ESS COOLING SYSTEM HARNESS 77 62186 04 3 6 3 6 ESS COOLING SYSTEM 24V ORS CONNECTIONS MCI 77 62203 00 3 7 3 6 ESS COOLING SYSTEM 24V ORS CONNECTIONS MCI 77 62203 00 3 8 37 ESS COOLING SYSTEM SUCTION TUBE ASSEMBLY FOR 77 62203 00 3 10 3 8 ESS COOLING SYSTEM LIQUID TUBE ASSEMBLY FOR 77 62203 00 3 10 3 9 ESS COOLING SYSTEM HARNESS FOR 77 62203 00 MCI 3 11 LIST OF FIGURES Figure 1 1 ESS Air Cooler amp Components 1 1 Figure 1 2 Electrical Schematic ESS Air Cooler W Micromax Rooftop RF Application 1 1 Figure 1 3 Electrical Schematic ESS Air Cooler W Micromax Rearmount RM55 Application 1 2 Figure 1 4 Electrical Schematic ESS Air Cooler W Micromax Rearmount RM50 Application 1 2 Figure 1 5 ESS With Air Cooler Installed 1 3 Figure 2 1 Air Cooler Operation 2 1 Figure 2 2 Air Cooler Refrigerant Flow Diagram 2 2 Figure 2 3 Liquid Line Solenoid Valve 2 3 i T 333 SECTION 1 INSTALLATION 1 1 Introduction The Carrier Rooftop ESS Energy Storage System A
3. 3 4 Inch Long Screw Cap Hex Head 1 4 20 X 1 1 2 Inch Long SST Flat 1 4 Inch SST Nut Hex Self Locking 1 4 20 SST 3 2 ESS COOLING SYSTEM 12 24V MIO CONNECTIONS 77 62186 00 AND 01 81 62142 00 Tube Assembly Liquid amp Suction MIO Fittings Includes Tube Assembly Liquid Bent 3 8 OD X 028 Wall Copper Tube Assembly Suction Bent 5 8 OD X 040 Wall Copper Reducer 1 2 ODM X 3 8 ODF Copper Valve Solenoid Without Coil 1 2 ODF N C Fitting Swivel Nut 1 2 X 3 4 16 Fitting Swivel Nut 5 8 X 7 8 14 Plate Connection Retainer Brass MIO Tube Liquid Bent 1 2 OD X 035 Wall Copper 39 40 T 333 3 4 3 3 ESS COOLING SYSTEM 12 24V ORS CONNECTIONS 77 62186 02 03 AND 04 81 62143 00 Assembly Liquid amp Suction ORS Fittings Includes Tube Assembly Liquid Bent 3 8 OD X 028 Wall Copper 1 Tube Assembly Suction Bent 5 8 OD X 040 Wall Copper Reducer 1 2 ODM X 3 8 ODF Copper Valve Solenoid Without Coil 1 2 ODF N C Fitting ORS 3 8 X 11 16 16 6 1 Fitting ORS 5 8 X 1 00 14 10 EM Plate Connection Retainer Brass ORS Tube Liquid Bent 3 8 OD X 028 Wall Copper 42 00243 02 1 50 I D x 1 75 42 00243 03 O Ring 0 62 I D x 0 75 3 5 T 333 3 4 ESS COOLING SYSTEM HARNESS 77 62186 00 THROUGH 03 61 62 63 60 62 63 60 22 01585 00SK Male 2 P
4. 40 00491 12 40 00491 15 40 01124 00 40 01184 00 T 333 PAGE NO 3 3 3 9 3 3 3 9 3 3 3 9 3 4 3 5 3 10 3 3 3 9 3 3 3 10 3 6 3 11 3 3 3 9 3 3 3 6 3 9 3 6 3 11 3 6 3 11 3 3 3 9 3 6 3 11 3 3 3 9 3 3 3 6 3 11 3 4 3 4 3 4 3 9 3 4 3 4 3 7 3 9 3 9 3 9 3 4 3 9 3 3 3 9 3 4 3 5 3 10 3 5 3 5 3 10 3 10 3 3 3 10 3 9 INDEX PART NO 40 01184 50 40 62032 01 40 62032 02 42 00243 02 42 00243 03 42 62122 00 42 62123 00 42 62124 00 42 62124 01 42 62125 00 42 62125 02 42 62126 00 42 62131 03 42 62131 05 42 62131 06 42 62131 07 42 62138 00 42 62138 01 42 62139 00 56 62299 00 56 62300 00 56 62301 00 56 62302 00 56 62321 00 56 62323 00 58 00661 04 58 04730 00F25 62 02444 00 62 62039 00 66U1 3882 67 62000 00 67 62002 00 67 62002 01 67 62003 00 67 62020 00 67 62021 00 67 62022 00 67 62023 00 Index 2 PAGE NO 3 9 3 4 3 4 3 5 3 5 3 3 3 3 3 3 3 3 3 3 3 9 3 4 3 9 3 9 3 9 3 9 3 9 3 9 3 7 3 4 3 5 3 4 3 4 3 5 3 5 3 10 3 10 3 3 3 9 3 6 3 11 3 3 3 9 3 9 3 3 3 3 3 3 3 3 3 9 3 7 3 9 3 9 Change 08 08 INDEX Part Number Index PART NO PAGE NO PART NO PAGE NO 67 63753 00 3 9 68 63572 00 3 3 68 63759 00 3 9 68 63573 00 3 3 68 63578 00 3 3 77 62203 01 3 7 3 9 68 63580 00 3 4 3 5 68 63600 00 3 3 81 62142 00 3 4 68 63624 00 3 3 68 63720 00
5. Partnumber 42 62125 00 Baffle Foam 1 lt 16 AC801 202 1 2 Inch Coil Assembly Evaporator EM 6 Includes 02 62000 00 Adhesive Hot Melt D C Tape 150 Feet Roll 67 62002 00 Assembly Side Interface Control White 67 62002 01 Panel Assembly Side Interface Control White 1 I 8 426212400 Insulation Side Panel Foam Adhesive Backed 1 9 12 13 15 2 3 4 5 7 10 11 12 13 14 15 16 Body Valve Schrader Brass 1 4 SAE Flare Includes Core Valve Schrader Nickel Plated Cap Seal Flare1 4 Inch Bracket Assembly Mounting Solenoid Valve White 1 Coil 12 VDC 15 Watts Model 77 62186 00 amp 02 Coil 24 VDC 15 Watts Model 77 62186 01 03 amp 04 Bracket Mounting Tube Connections Painted MIO Bracket Mounting Tube Connections Painted ORS 7 68 63573 00 Panel Top Painted Model 77 62186 00 01 02 03 68 63573 01 Panel Top With Notch Painted Model 77 62186 04 2 3 3 T 333 3 1 ESS COOLING SYSTEM 12 24V COMMON PARTS 77 62186 00 THRU 04 Continued 42 62126 00 Insulation Front Panel Assembly Black Adhesive Backed 34 62021 01 Rivet Blind Dome Head 3 16 Grip Range 250 375 Screw Hex Head Captive Washer 10 32 X 50 Inch Long Screw Hex Head Captive Washer 10 32 X
6. forming on the Air Cooler evaporator coil which is an indication that liquid is getting back to the compressor The Air Cooler Freeze Thermostat is wired in series with the liquid line solenoid valve f the Freeze Thermostat reaches the preset temperature it will open shutting off power to the liquid line solinoid which will also open stopping the flow of liquid refrigerant The Freeze Thermostat will cut out at 30 5 0 8 1 5 F andit will cut in at 45 F 7 2 C x 1 5 F Preset at the factory Non Adjustable In order to accurately sense the temperature of the refrigerant within the evaporator tubes the probe of the Freeze Thermostat must always be inserted within the evaporator coil 2 9 HIGH PRESSURE SWITCH Optional The ESS Air Cooler Rooftop System has a normally closed High Pressure Switch wired in series with the Micromax Controller The HPS will open when the refrigerant pressure rises to 300 Lbs 10 Ibs The HPS will close when the pressure drops to 200Lbs 10 Ibs T 333 SECTION 3 SERVICE PARTS INTRODUCTION This section provides identification of service replacement parts for the Carrier Transport Air Conditioning Energy Supply System ESS Air Cooling Units listed in the following Model Chart CONFIGURATION IDENTIFICATION Unit identification information is provided on a plate decal located on the side ofthe ESS This plate provides the unit model number and the unit serial
7. to the Rooftop RF or rear mounted RM service manual for procedures 2 5 ADDING REFRIGERANT TO SYSTEM Refer to the Rooftop RF or rear mounted RM service manual for procedures T 333 2 6 SERVICING THE LIQUID LINE SOLENOID VALVE TheLiquid line solenoid valve Figure 2 3 is very similar to a heat valve It requires no maintenance unless a malfunction to the internal parts or coil occurs This may be caused by foreign material such as dirt scale or sludge in the refrigeration system or improper voltage to the coil There are only three possible valve malfunctions coil burnout failure to open or failure to close Coil burnout may be caused by the following 1 Improper voltage 2 Continuous over voltage more than 1096 or under voltage of more than 15926 3 Incomplete magnet circuit due to the omission of the coil hosing or plunger 4 Mechanical interface with movement of plunger which may be caused by a deformed enclosing tube Failure to open may be caused by the following 1 Coil burned out or an open circuit to coil connections 2 Improper voltage 3 Defective plunger or deformed valve body assembly Failure to close may be caused by the following 1 Defective plunger or deformed valve body assembly 2 Foreign material in the valve 2 6 1 Coil Replacement a It is not necessary to remove the refrigerant charge from the system b Disconnect Air Cooler from Rooftop or Rear Mounted evaporator assemb
8. 3 3 8 3 6 ESS COOLING SYSTEM 24V ORS CONNECTIONS MCI 77 62203 00 Continued Description ESS Cooling Assembly Chassis Kit Reference Only Includes i 12 00547 00 Thermostat Freeze Up Non Adjustable 12 24 VDC 7 22 01585 005 Connector Male 2 Pin Black 22 02394 00 Seal Cable Gray 22 02567 02 Coil 24 VDC 15 Watts 5 14 00301 03 Valve Thermal Expansion Block Type R 134a 22 01566 01 Ierminal Female 18 20 AWG Rivet Blind Dome Head 3 16 Dia Grip Range 250 375 38 00573 09 Filer Air 012 Thick X 8 00 X 18 20 Inches 40 01184 00 Fitting Assembly Low Side Adapter M8 Includes 7 RE 1 N o 3 9 T 333 3 7 ESS COOLING SYSTEM SUCTION TUBE ASSEMBLY FOR 77 62203 00 41 42 43 Tube Assembly Suction Includes Tube Assembly Suction Bent 5 8 OD X 040 Wall Copper Fitting ORS 5 8 ODF X 1 00 14 Body Valve Schrader Brass 1 4 SAE Flare Includes Core Access Valve Nickel Plated Cap Seal Flare 1 4 Inch 3 8 ESS COOLING SYSTEM LIQUID TUBE ASSEMBLY FOR 77 62203 00 44 81 62157 00 Tube Assembly Liquid Includes Tube Liquid 3 8 OD X 028 Wall Copper Tube Assembly Liquid Bent 3 8 OD X 028 Wall Copper Fitting ORS 3 8 x 11 16 16 56 62321 00 56 62322 00 40 00491 12 14 00150 14 Solenoid Without Coil 1 2 ODF N C 40 00201 02
9. 3 9 81 62143 00 3 5 68 63755 00 3 9 81 62157 00 3 10 A 81 62158 00 3 10 AC022 289 3 3 3 9 AC801 201 3 3 3 9 86 62438 00 3 3 AC801 202 3 3 3 9 AC801 203 3 3 3 9 86 62440 00 3 3 D 86 62440 01 3 3 DD 19CA061 3 10 86 62520 00 3 9 Index 3 T 333 2 Carrier Transport Air Conditioning Carrier 50 Grumbacher Road A United Technologies Company York PA 17406 USA Carrier Transicold Division Tel 1 800 673 2431 Carrier Corporation Fax 1 717 764 0401 Transport Air Conditioning Group P O Box 4805 Syracuse N Y 13221 U S A www carrier transicold com A member of the United Technologies Corporation family Stock symbol UTX TRANSICOLD 2008 Carrier Corporation Printed 1 5 0608
10. Bushing Tube Flush 1 2 ODM x 3 8 ODS T 333 3 10 3 9 ESS COOLING SYSTEM HARNESS FOR 77 62203 00 51 52 53 51 52 53 22 62233 01 Harness ESS Coiling System Includes 22 02392 00 Connector Kit 2 Pin C1 22 02393 00 22 01141 01 inal ip On 14 16 AWG T1 T2 58 04730 00F25 i i Change 08 08 3 11 T 333 Text Index A ADDING REFRIGERANT TO SYSTEM 2 2 Air Circulation 2 1 C COIL FREEZE THERMOSTAT 2 3 Coil Replacement 2 2 E Electrical 1 1 EVACUATION AND DEHYDRATION 2 2 H HIGH PRESSURE SWITCH 2 3 Installation 1 3 Internal Part Replacement 2 2 Introduction 1 1 L Liquid Line Solenoid 2 2 INDEX Maintenance Schedule 2 2 O OPERATION 2 1 R Refrigerant Cycle 2 1 REFRIGERANT LEAK CHECK 2 2 Replace Entire Valve 2 3 S Scheduled Maintenance 2 2 SERVICE 2 1 T Thermostatic Expansion Valve 2 3 V Valve Replacement 2 3 Index 1 T 333 Part Number Index PART NO 02 62000 00 08 62061 00 08 62075 00 12 00547 00 14 00150 14 14 00301 03 14 00351 00 22 01141 01 22 01566 01 22 01585 00SK 22 02392 00 22 02393 00 22 02394 00 22 02394 01 22 02567 02 22 02567 03 22 62233 00 22 62233 01 34 00655 12 34 00662 11 34 00667 61 34 00917 08 34 00917 12 34 00917 18 34 01267 20 34 06088 04 34 06088 05 34 06212 15 34 62021 01 38 00573 09 40 00090 04 40 00201 02 40 00491 09
11. RS depending on application from the Air Cooler TXV to the system compressor Connect wiring from the Liquid Line Solenoid Valve on the main evaporator assembly to the Air Cooler plug TOP VIEW Figure 1 5 ESS With Air Cooler Installed 1 3 T 333 SECTION 2 OPERATION SERVICE WARNING BE SURE TO OBSERVE ALL WARNINGS AND CAUTIONS LISTED IN THE THIS MANUAL BEFORE PERFORMING MAINTENANCE ON THE HVAC SYSTEM AND THE AIR COOLER 4 WARNING DO NOT ATTEMPT ANY SERVICE TO THE ENERGY STORAGE SYSTEM THE ESS CONTAINS HIGH VOLTAGE AND SERIOUS INJURIES COULD OCCUR THE CARRIER TRANSPORT AIR COOLER IS THE ONLY ITEM THAT IS SERVICABLE 2 1 OPERATION 2 1 1 Air Circulation The Air Cooler has no fan or blower assemblies Circulation is achieved from the fans located within the Energy Storage System ESS Ambient air is pulled across the evaporator coil and cooled Cool air is then circulated throughout the ESS The cool air is mixed with the heat given off from the ESS The warm air is ejected from the ESS and returned to the ambient RETURN TO AMBIENT Figure 2 1 Air Cooler Operation 2 1 2 Refrigerant Cycle The ESS Air Cooler is an auxillary cooling component of a rooftop RF or rear mounted RM air conditioning system When the main evaporator calls for cooling the liquid line solenoid valve is opened sending a signal to open the liquid line solenoid valve on the ESS Air Cooler See Figure 2 2 L
12. Transport Air Conditioning INSTALLATION OPERATION SERVICE amp PARTS SUPPLEMENT for Rooftop Energy Storage Systems ESS AIR COOLING UNIT 77 62186 00 THRU 04 amp 77 62203 00 T 333 Rev D Change 08 08 TRANSICOLD INSTALLATION OPERATION SERVICE amp SERVICE PARTS SUPPLEMENT For ROOFTOP ENERGY STORAGE SYSTEM ESS AIR COOLING UNIT 77 62186 00 Thru 77 62186 04 amp 77 62203 00 TABLE CONTENTS PARAGRAPH NUMBER Page INSTAPEATIOQN i um lA e M EU EIE DUE 1 1 Tl Introduction uet eR Rete payata h eU 1 1 1 22 Electrical c ebbe el itte ee ates vert 1 1 123 installation n Rr Eee Eie roS LI qt 1 3 OPERATIONS SERVICE eri re bie eee 2 1 2 OPERATION AN Rec Ald Y Re Ae ue 2 1 Dil CIrCUlation esis Paw ce DESC Rae Ae egies 2 1 2 1 2 Refrigerant 2 1 2 2 MAINTENANCE SCHEDULE deine bev lee waska bee 2 2 2 2 1 Scheduled Maintenance 2 2 2 3 REFRIGERANT LEAK CHECK 2 2 24 EVACUATION AND DEHYDRATION 2 2 2 5 ADDING REFRIGERANT TO SYSTEM
13. erant Flow Diagram 2 2 MAINTENANCE SCHEDULE Normal or routine maintenance on the ESS Air Cooler will normally be performed in conjuction with the main rooftop RF or rear mounted RM maintenance schedules Refer to the appropriate operation and service manual for these maintenance schedules 2 2 1 Scheduled Maintenance a Check inlet air filters weekly Clean or replace as necessary b Check operation of the liquid line solenoid It must operate in conjuction with the rooftop or rear mount evaporator liquid line solenoid Refer to paragraph 2 6 c Check liquid amp suction line connections for leaks d Check and clean Air Cooler coil as necessary 2 3 REFRIGERANT LEAK CHECK A refrigerant leak check should always be performed after the system has been opened to replace or repair a component To check for leaks in the refrigeration system perform the following procedure a Ensure liquid line solenoid valve is open Solenoid valve will need to be powered from the closest 12VDC or 24VDC source Refer to the Rooftop RF or rear mounted RM service manual for procedures 2 4 EVACUATION AND DEHYDRATION The presence of moisture in a refrigeration system can have many undesirable effects The most common are copper plating acid sludge formation freezing up of metering devices by free water and formation of acids resulting in metal corrosion Evacuate and dehydrate only after pressure leak test Refer
14. in Black E1 22 01141 01 58 04730 00F25 3 5 55 COOLING SYSTEM HARNESS 77 62186 04 67 68 69 67 68 69 66 22 62233 01 Harness 55 Coiling System Includes 22 02392 00 Connector Kit 2 Pin C1 E1 22 02393 00 22 01141 01 58 04730 00F25 T 333 3 6 INCUN REF 77 62203 00 MCI Reference Only Grade 10 9 Description Chassis Kit Bracket Assembly Interface Control Insulation M6 x 20MM Long Foam Adhesive Backed Bracket 42 62139 00 77 62203 01 55 Cooling Assembly 67 62021 00 se N N N 9 LU e 9 7 x e 2 N LU N gt 2 2 E e 9 7 N ve 34 01267 20 Screw Flat Head Socket Part Number T 333 3 7 3 6 ESS COOLING SYSTEM 24V ORS CONNECTIONS MCI 77 62203 00 Continued 10 29 31 11 37 16 3 20 22 23 10 24 5 26 36 6 7 8 9 14 21 34 14 19 27 2 14 17 18 28 32 Decal SN Warranty REF 77 62203 01 T 33
15. iquid refrigerant flows from the main condensing assembly through the ESS Air Cooler liquid line solenoid valve to the expansion valve TXV The thermal expansion valve reduces pressure and temperature of the liquid and meters the flow of liquid refrigerant to the Air Cooler coil to obtain maximum use of the coils heat transfer surface The low pressure low temperature liquid that flows into the Air Cooler evaporator coil tubes is colder than the air that is circulated over the evaporator tubes by the ESS fans Heat transfer is established from the evaporator air flowing over the tubes to the refrigerant flowing inside the tubes The evaporator tubes have alunimum fins to increase heat transfer from the air to the refrigerant therefore the cooler air is circulated to the interior of the ESS The liquid line solenoid valve closes during shutdown to prevent refrigerant flow The transfer of heat from the air to the low temperature refrigerant in the evaporator coil causes the liquid to vaporize This low temperature low pressure vapor passes through the suction line and returns to the compressor where the cycle is repeated T 333 55 Air Cooler Liquid Line Solenoid Liquid From Unit um 2 Suction To Compressor Mounting Bracket Fitting Connections mamam LIQUID LIQUID VAPOR MIX Figure 2 2 Air Cooler Refrig
16. ir Cooling Unit See Figure 1 1 is one assembly consisting of an evaporator coil expansion valve TXV liquid line solenoid valve suction line and a freeze thermostat The ESS Air Cooling Unit is used in conjunction with a Carrier Rooftop RF or Rear Mounted RM main air conditioning system and a Micromax Controller The purpose of the air cooler is to aid in keeping the hybrid bus battery pack ESS cool The ESS has its own fans that provide airflow ventilation system The Carrier ESS Air Cooler is integrated into that ventilation system Figure 1 1 ESS Air Cooler amp Components 1 2 Electrical Movement of refrigerant through the Carrier Air Coolling Unit is controlled by the electrical system of the main air conditioning system See Figure 1 2 Figure 1 3 or Figure 1 4 The internal components of the ESS along with the Carrier Air Cooling Unit must have sufficient air movement to keep the ESS temperature under 30 C 86 F Reference Unit 68RF353 101 7 From main system K13 LEGEND K13 CLUTCH RELAY TB TERMINAL BOARD CL CILUTCH LSV LIQUID LINE SOLENOID FT FREEZE THERMOSTAT Note The Air Cooler will not operate unless the main evaporator assembly is in the cool mode OPEN P RISE 300 10 CLOSE P DROP 200 40 B Compressor Liquid Solenoid Valve In Evaporator RF Liquid Solenoid Valve ESS Air Cooler ESS AIR COOLING UNIT Figure 1 2 Electrical Schema
17. ly c Disconnect wire leads to coil d Remove coil retaining clip and nameplate e Lift failed coil from enclosing tube and replace f Connect wire leads connect to main evaporator and test operation 2 6 2 Internal Part Replacement a Disconnect system from bus battery b Recover and recycle system refrigerant Refer to the Rooftop RF or rear mounted RM service manual for procedures Assemble valve leak check d Evacuate and recharge system Refer to the Rooftop RF or rear mounted RM service manual for proce dures 2 6 3 Replace Entire Valve a Recover and recycle system refrigerant Refer to the Rooftop RF or rear mounted RM service manual for procedures b Remove valve assembly from bracket c Disconnect wire leads to coil d Disassemble new valve to protect internal parts and solder to lines e Assemble and leak check valve Refer to the Rooftop RF or rear mounted RM service manual for proce dures f Evacuate and recharge system Refer to the Rooftop RF or rear mounted RM service manual for proce dures g Connect wire leads and test operation 1 Snap Cap 5 Gasket 2 Coil Assembly 6 Piston Assembly 3 Enclosing Tube 7 Body Assembly 4 Plunger Assembly 8 Bracket Adapter Figure 2 3 Liquid Line Solenoid Valve 2 7 THERMOSTATIC EXPANSION VALVE Block The thermostat expansion valve is an automatic device which maintains constant superheat of the refrigeran
18. number The model number identifies the unit configuration and differences in detailed parts MODEL CHART ESS AIR COOLER Model Number Solenoid Coil Voltage Watts Fitting Connections To TXV 77 62186 00 12 VDC 15 Watts Male Insert O Ring MIO 77 62186 01 24 VDC 15 Watts Male Insert O Ring MIO 12 VDC 15 Watts 24 VDC 15 Watts O Ring Seal ORS 24 VDC 15 Watts 24 VDC 15 Watts O Ring Seal ORS GENERAL NOTES To find replacement parts determine major group in which replacement parts are located and turn to the appropriate page for the illustrated breakdown ofthe replacement parts The following letter designations used to classify parts throughout this list A R As Required N S Not Shown on Illustration NSS Not Sold Separtely Order next higer assembly or kit P Suffix P added to part number means part is available in packaged quantity only PL Purchase Locally SST Stainless Steel 300 Series unless otherwise specified SV Suffix SV added to part number designates service replacement part 3 1 T 333 3 1 ESS COOLING SYSTEM 12 24V COMMON PARTS 77 62186 00 THRU 04 NOTCH 04 ASSEMBLY ONLY 39 OR 48 LIQUID SUCTION TUBING ASSEMBLY SEE SECTION 3 2 OR 3 3 28 29 32 26 33 35 20 21 22 23 24 34 14 15 16 36 37 38 SERIAL DECAL 59 OR 66 HARNESS SEE SECTION 3 4 OR 3 5 T 333 3 2 3 1 ESS COOLING SYSTEM 12 24V COMMON PARTS 77 62186 00 THRU 04 Continued item
19. t gas leaving the evaporator regardless of suction pressure The valve functions are a automatic control of refrigerant flow to match the evaporator Air Cooler load and b prevention of liquid refrigerant entering the compressor Unless the valve is defective it seldom requires any maintenance 2 7 1 Valve Replacement a Recover and recycle system refrigerant Refer to the Rooftop RF or rear mounted RM service manual for procedures b Remove no drip insulating tape from block valve and fitting connections c Carefully loosen all fittings connected to the block valve CAUTION There may be liquid refrigerant trapped be hind the block valve Slowly loosen the fit tings and avoid contact with exposed skin or eyes d Remove and replace block valve lubricating the fit ting threads and O rings with mineral oil before torqu ing to the required specification of 30 35 Ft Lb NOTE Do not attempt to adjust the replacement block valve The valves are preset at the factory e Insulate block valve with no drip insulating tape f Leak check evacuate and charge system with recov ered refrigerant Refer to the Rooftop RF or rear mounted RM service manual for procedures g Check operation of the system Adjust refrigerant charge if needed Refer to the Rooftop RF or rear mounted RM service manual for procedures 2 8 COIL FREEZE THERMOSTAT Freeze Stat Freeze Thermostats are used to prevent ice from
20. tic ESS Air Cooler W Micromax Roottop RF Application 1 1 T 333 Reference Unit 68RM55 101 11 OPEN P RISE 300 10 CLOSE P DROP 200 40 From main system K13 HPS SISI lt lt amp s 87 z gt A L5 8 3 31 30 LEGEND K13 CLUTCH RELAY TB TERMINAL BOARD CL CLUTCH LSV LIQUID LINE SOLENOID FT FREEZE THERMOSTAT CLUSE T RISE ESS COOLER OPEN T DROP ose P RISE CLOSE P DROP JP4 RD LEGEND CL CLUTCH LSV 1 LIQUID LINE SOLENOID RM K13 CLUTCH RELAY LSV 2 ESS LIQUID LINE SOLENOID FTS FREEZE THERMOSTAT SWITCH Figure 1 4 Electrical Schematic ESS Air Cooler W Micromax Rearmount RM50 Application T 333 1 2 1 3 Installation To install the air cooler to the ESS do the following a Remove and save six bolts 6M from the air intake of the ESS b Remove and discard the intake grill c Removeandsave six bolts 6M from the ESS air out let d Remove left side panel side opposite on the Air Cooler This will allow you acces the ESS bolt holes a 2 Place the Air Cooler against the ESS and fix in place using the original 12 6M ESS bolts See Figure 1 5 Replace Air Cooler side panel Connect a 6 or 8 liquid hose MIO or ORS depend ing on application from the main evaporator assem bly to the Air Cooler TXV Connect a 10 suction hose MIO or O
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