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Johnson Controls DSH Series, Installation, Operation & Maintenance Instructions Manual

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Johnson Controls DSH Series Installation, Operation & Maintenance Instructions Manual Download Page 17

FORM 145.32-IOM4 (818) 

17

 

8 & 10 TON HORIZONTAL A/C UNIT  

SERVICE CLEARANCES (8 TON PACKAGED UNIT SHOWN) 

CONDENSER
INTAKE

RETURN
 AIR

SUPPLY 
AIR

8 TON HORIZONTAL A/C UNIT
SERVICE CLEARANCES

EVAPORATOR
SECTION

CONDENSER
SECTION

EVAPORATOR
SECTION

CONDENSER
SECTION

TOP VIEW

4 IN. MINIMUM CLEARANCE
(FOR DRAIN TRAP)

36 IN. MINIMUM 
CLEARANCE

36 IN. MINIMUM
CLEARANCE

36 IN. MINIMUM 
CLEARANCE

BACK VIEW

Summary of Contents for DSH Series

Page 1: ...MODEL DSH024C 060C AND 096B 120B HORIZONTAL R 410A STYLE B C Issue Date August 30 2018 AIR COOLED SELF CONTAINED UNITS INSTALLATION OPERATION MAINTENANCE Supersedes 145 32 IOM4 1216 Form 145 32 IOM4 818 ...

Page 2: ... and understood this document and any referenced materials This individual shall also be familiar with and comply with all applicable governmental standards and regulations pertaining to the task in question SAFETY SYMBOLS The following symbols are used in this document to alert the reader to areas of potential hazard DANGER indicates an imminently haz ardous situation which if not avoided will re...

Page 3: ...e is available TABLE OF CONTENTS Safety Symbols 2 Changeability of This Document 3 Typical Installation Diagrams 4 General Information 7 Installation Pre Installation Inspection of Equipment 7 Rigging 7 Installation Site 7 Cabinet Configurations Unit Mounting 8 Separation of Units Evaporator Condenser 8 Physical Data 11 Service Clearances and Corner Weights 15 Interconnecting Refrigerant Tubing 18...

Page 4: ...FORM 145 32 IOM4 818 4 ...

Page 5: ...FORM 145 32 IOM4 818 5 DSH024C DSH060C SINGLE COMPRESSOR UNIT TYPICAL INSTALLATION DIAGRAM ...

Page 6: ...FORM 145 32 IOM4 818 6 DSH096B 120B DUAL COMPRESSOR UNIT TYPICAL INSTALLATION DIAGRAM ...

Page 7: ...FORM 145 32 IOM4 818 7 NOMENCLATURE TABLE ...

Page 8: ... immediately Refrigerant circuit should be checked to ensure no leaks have occurred during shipment Install gauge set to high and low pressure ports to confirm pressure has been maintained and no leaks have occurred during shipment Repair any damage prior to installation to ensure safe operation RECORD ANY UNIT DAMAGE ON THE BILL OF LADING AND REPORT TO CARRIER AND FACTORY IMMEDIATELY SHIPPING AND...

Page 9: ...aps and brackets from refrigerant piping and couplings before assembling and piping the units see pictures below 8 10 ton model shown Units may be either hung or floor mounted If unit is to be hung use all mounting points indicated regardless if unit is installed as a package or split system refer to typical installation diagram on Page 4 5 Use of minimum in dia hanger rods is strongly recommended...

Page 10: ...cess wire into the evaporator panel 5 Remove the threaded wire bushing connecting the two electrical panels 6 Remove the unit top joining strip Take care to remove only those screws which attach the joining strip to the evaporator and condenser cabinets 7 Remove the two side cross member angles 8 Carefully pull the evaporator section away from the condenser section Take care not to damage the shor...

Page 11: ... line set or if necessary position of unit module 3 Using a back up wrench tighten the female union nut until a definite increase in resistance is felt At this point most of threads will have been covered by the nut Ensure that the female and male bodies during any portion of the wrench installation do not rotate 4 Make note of the location of the female nut to the bulkhead Using a marker or scrib...

Page 12: ... FIELD CONVERTIBLE OPTIONAL CONDENSER INTAKE FIELD CONVERTIBLE 3 4 NPT DRAIN CONNECTION 2 3 TON HORIZONTAL A C UNIT DIMENSIONAL DATA EVAPORATOR SECTION ELECTRICAL BOX ACCESS EVAPORATOR FAN ACCESS CONDENSER FAN ACCESS LOW VOLTAGE CONNECTION 23 75 7 18 7 00 56 00 71 88 C C 78 19 2 70 2 75 FRONT BACK FRONT ELECTRICAL POWER CONNECTION CONDENSER SECTION ELECTRICAL BOX ACCESS COMPRESSOR ACCESS EVAPORATO...

Page 13: ...ER SECTION EVAPORATOR SECTION 35 62 C C 40 00 C C 80 50 C C 66 50 C C 69 10 86 19 ELECTRICAL POWER CONNECTION CONDENSER SECTION ELECTRICAL BOX ACCESS EVAPORATOR SECTION ELECTRICAL BOX ACCESS LOW VOLTAGE CONNECTION CONDENSER OPENINGS EVAPORATOR OPENINGS FRONT FRONT 17 50 18 50 15 00 16 00 10 12 9 73 8 13 8 75 CONDENSER FAN ACCESS EVAPORATOR FAN ACCESS 28 00 26 75 29 38 23 13 COMPRESSOR ACCESS EVAPO...

Page 14: ... 00 4 75 17 00 25 00 21 25 10 88 85 21 80 00 1 25 1 00 CONDENSER SECTION ELECTRICAL BOX ACCESS EVAPORATOR SECTION ELECTRICAL BOX ACCESS EVAPORATOR BLOWER DRIVE ACCESS PANEL FILTER ACCESS BOTH SIDE CONDENSER BLOWER DRIVE ACCESS PANEL COMPRESSOR ACCESS PANEL CONDENSER OPENING 48 00 29 38 33 38 4 94 2 63 38 13 30 13 1 56 1 00 2 19 23 88 20 94 2 25 8 56 39 88 3 4 NPT DRAIN CONNECTION EVAPORATOR OPENIN...

Page 15: ...SECTION ELECTRICAL BOX ACCESS EVAPORATOR SECTION ELECTRICAL BOX ACCESS EVAPORATOR BLOWER DRIVE ACCESS PANEL FILTER ACCESS BOTH SIDES CONDENSER BLOWER DRIVE ACCESS PANEL COMPRESSOR ACCESS PANEL CONDENSER DISCHARGE 61 00 29 35 33 25 4 94 2 5 38 10 30 10 1 58 1 25 2 20 11 26 41 79 3 4 NPT DRAIN CONNECTION EVAPORATOR DISCHARGE 2 94 TOP VIEW TX VALVE FILTER DRIER ACCESS PANEL 1 08 20 52 21 27 70 88 18 ...

Page 16: ...ZONTAL A C UNIT SERVICE CLEARANCES SUPPLY AIR RETURN AIR CONDENSER INTAKE CONDENSER DISCHARGE CONDENSER SECTION EVAPORATOR SECTION FRONT CONDENSER FAN ACCESS EVAPORATOR FAN ACCESS 36 IN MINIMUM CLEARANCE 36 IN MINIMUM CLEARANCE 4 IN MINIMUM CLEARANCE FOR DRAIN TRAP ...

Page 17: ... SHOWN CONDENSER INTAKE RETURN AIR SUPPLY AIR 8 TON HORIZONTAL A C UNIT SERVICE CLEARANCES EVAPORATOR SECTION CONDENSER SECTION EVAPORATOR SECTION CONDENSER SECTION TOP VIEW 4 IN MINIMUM CLEARANCE FOR DRAIN TRAP 36 IN MINIMUM CLEARANCE 36 IN MINIMUM CLEARANCE 36 IN MINIMUM CLEARANCE BACK VIEW ...

Page 18: ...FORM 145 32 IOM4 818 18 UNIT CORNER WEIGHTS ...

Page 19: ... checking all field brazed joints After completion of the leak check evacuate the interconnecting lines to hold a 350 micron vacuum If gauge pressure rises above 500 microns in one minute then evacuation is incomplete or the system has a leak RECOMMENDED REFRIGERANT LINE SIZES Model LESS THAN 75 LINEAR FEET LIQUID LINE SUCTION LINE DSH024C 3 8 3 4 DSH036C 3 8 3 4 DSH048C 1 2 7 8 DSH060C 1 2 7 8 DS...

Page 20: ...al electrical codes when making electrical connections Units are completely factory wired for normal supply voltages i e 208 230 460 575V 3Ph 60Hz Confirm unit specifications by checking unit data plate The factory wiring terminates in two boxes one in each section of the unit The electrical control boxes are located behind outer access panels Each electrical compartment has its own control cover ...

Page 21: ...FORM 145 32 IOM4 818 21 TYPICAL WIRING SCHEMATICS ...

Page 22: ...FORM 145 32 IOM4 818 22 ...

Page 23: ...30 3 60 2 15 9 110 0 3 00 8 5 3 00 8 5 52 78 60 DSH120B4 460 3 60 2 7 1 52 0 3 00 4 2 3 00 4 2 24 38 30 DSH120B5 575 3 60 2 5 1 39 5 3 00 3 4 3 00 3 4 18 28 20 ELECTRICAL DATA OVERSIZED EVAPORATOR MOTOR MODEL VOLTAGE COMPRESSOR EVAP FAN COND FAN MCA MAX FUSE CCT BKR AMP QTY RLA LRA HP FLA HP FLA DSH048C2 208 230 3 60 1 13 8 83 1 1 00 3 1 1 50 4 4 24 75 35 DSH048C4 460 3 60 1 6 2 41 0 1 00 1 5 1 50...

Page 24: ...rive3 0 8 1 0 OUTDOOR CFM AVAILABLE EXTERNAL STATIC PRESSURE Inches W C 0 0 0 2 0 4 0 6 0 8 SUPPLY CFM 0 0 0 2 0 4 0 6 SUPPLY AIR BLOWER PERFORMANCE RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 800 453 0 06 534 0 09 609 0 11 679 0 14 744 0 16 866 0 21 969 0 26 1065 0 33 1000 566 0 13 633 0 16 695 0 19 755 0 21 812 0 24 917 0 30 1016 0 38 1200 680 0 23 735 0 26 789 0 29 840 0 33 ...

Page 25: ...0 1 2 Standard Factory Drive Hi Static Drive Factory Drive 0 75HP Low Static Drive3 1 4 Hi Static Drive 1 0HP 1 2 SUPPLY AIR BLOWER PERFORMANCE RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Hi Static Drive 1 5HP 1600 511 0 25 562 0 30 612 0 34 658 0 38 703 0 43 786 0 50 863 0 59 935 0 68 1002 0 78 1066 0 86 1800 575 0 36 620 0 41 666 0 45 708 0 50 749 0 55 826 0 6...

Page 26: ...BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Standard Factory Drive 3 HP Optional Oversized Motor 5 HP 6400 691 1 98 747 2 24 800 2 52 850 2 80 898 3 08 945 3 36 990 3 66 1033 3 96 1075 4 26 SUPPLY AIR BLOWER PERFORMANCE SUPPLY CFM AVAILABLE EXTERNAL STATIC PRESSURE Inches W C 0 2 0 4 0 6 0 8 1 0 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM...

Page 27: ...6 68 2 0 3 0 1VP34X5 8 7 2 AK74H AX49 DSH048C 470 694 1 5 145 88 5 2 0 3 0 1VP34X7 8 7 7 AK79H AX54 DSH060C 525 775 1 5 145 88 5 2 0 3 0 1VP34X7 8 6 9 AK71H AX52 DSH096B 515 686 3 184 88 5 2 8 3 8 1VP44X1 1 8 10 2 AK104H AX54 DSH120B 640 854 3 184 88 5 2 8 3 8 1VP44X1 1 8 8 2 AK84H AX57 Frame Eff Pitch Dia Browning Pitch Dia Browning Size in Part No in Part No DSH024C 614 906 0 5 56 62 2 0 3 0 1VP...

Page 28: ...speed is accomplished as follows 1 Loosen belt tension by moving motor towards the blower shaft via the adjustable mounting 2 Loosen the set screw in the adjustable motor pulley flange Remove external key on pulleys 4 in diameter and larger 3 Slower speed will increase when moveable flange is adjusted towards the fixed flange closed Blower speed will decrease when the moveable flange is adjusted a...

Page 29: ...t located on the liquid refrigerant line leaving the condenser The pressure controller complete with terminal connection blocks for wiring is attached to a field installed mounting bracket Appropriate mounting hardware for the pressure control module and the damper actuator motor are provided with the kit A routing hole is provided in the condenser corner panel near the actuator mounting location ...

Page 30: ...itch any two wires at contactor if blower rotation is not correct There is no negative impact on durability caused by operating three phase Scroll compressors in the reversed direction for a short period of time under one hour However after several minutes of operation the compressors internal protector will trip If opposite rotation is needed disconnect and reverse any two leads of the three phas...

Page 31: ...cessor control will energize the blower motor Once the room t stat has been satisfied it will de energize Y1 If the compressor has satisfied its minimum run time the compressor and fan de energize Otherwise the unit operates the cooling system until the minimum run time for the compressor has been completed After the compressor de energizes the blower is stopped following the elapse of the fan off...

Page 32: ...densate Overflow lock out SAFETY CONTROLS The microprocessor control monitors the following inputs 1 A High Pressure Switch on each compressor circuit to protect against excessive discharge pressures 2 A Low Pressure Switch on each compressor circuit to protect against loss of refrigerant charge 3 A Condensate Overflow Switch to protect against condensate overflow Compressor Protection In addition...

Page 33: ... the button once and it scans the bus then assigns itself the first available address starts at 2 It then flashes that address one time Pressing the button twice causes the control to flash the address FLASH CODES Description On Steady This is Control Failure 2 Flashes Control waiting ASCD Anti Short Cycle Delay 3 Flashes High Pressure Compressor 1 Lockout 4 Flashes High Pressure Compressor 2 Lock...

Page 34: ... type and do not require lubrication Check bearings for any signs of wear movement between inner and outer races Ensure bearing locking collars are secure to the shaft and that collar locking screw is properly set Check that the blower wheel is tight on the shaft and that the hub set screws are tightened to the proper torque DRIVE BELTS Examine belts periodically for wear Glazed areas on the drive...

Page 35: ...t least 700 psig high side and 180 psig low side with 550 psig retard All hoses must have a service pressure rating of 800 psig Leak detectors must be designed to detect HFC refrigerants Systems must be charged with refrigerant Use a commercial type metering device in the manifold hose R 410A can only be used with POE type oils POE type oils rapidly absorb moisture from the atmosphere Vacuum pumps...

Page 36: ... USA 17406 8469 800 861 1001 Subject to change without notice Printed in USA Copyright by Johnson Controls 2018 www johnsoncontrols com ALL RIGHTS RESERVED Form 145 32 IOM4 818 Issue Date August 30 2018 Supersedes 145 32 IOM4 1216 ...

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