Lennox SW 036 Installation Instructions Manual Download Page 2

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Page 2

SW 120 Parts Arrangement

INDOOR

COIL

COMPRESSOR 1

BLOWER

FILTERS

(SIX - 16 X 25 X 2”)

ECONOMIZER

DAMPERS (OPTIONAL)

CHARGE

COMPENSATOR 1

REVERSING

VALVE 2

IMC UNIT

CONTROLLER

WATER INLET
CONNECTION

WATER OUTLET

CONNECTION

BOTTOM

WATER ENTRY

STG. 1 WATER FLOW

CONTROL VALVE

(SEE FIGURE 7)

STG. 1 WATER TO

REFRIGERANT COIL

(SEE FIGURE 7)

COMPRESSOR 2

BLOWER

MOTOR

REVERSING

VALVE 1

CHARGE

COMPENSATOR 2

STG. 2 WATER TO

REFRIGERANT COIL

(SEE FIGURE 7)

STG. 2 WATER FLOW

CONTROL VALVE

(SEE FIGURE 7)

SW 240 Parts Arrangement

STG. 1 WATER

FLOW CONTROL VALVE

(SEE FIGURE 8)

STG. 2 WATER

FLOW CONTROL VALVE

(SEE FIGURE 8)

INDOOR

COIL

BLOWER MOTOR

COMPRESSOR 1

BLOWER

FILTERS

(TWELVE - 20 X 20 X 2”)

ECONOMIZER

DAMPERS (OPTIONAL)

STG.1 WATER TO

REFRIGERANT COIL

(SEE FIGURE 8)

WATER INLET
CONNECTION

REVERSING

VALVES

IMC UNIT

CONTROLLER

WATER OUTLET

CONNECTION

BOTTOM

WATER ENTRY

CHARGE

COMPENSATOR 1

CHARGE

COMPENSATOR 2

COMPRESSOR 2

STG.2 WATER TO

REFRIGERANT COIL

(SEE FIGURE 8)

Summary of Contents for SW 036

Page 1: ...eneral Page 6 Safety Page 6 Unit Support Page 7 Duct Connection Page 7 Rigging Unit For Lifting Page 7 Condensate Drains Page 8 Water Supply Connections Page 8 Water Bypass Loop Page 11 Bleed Air From...

Page 2: ...1 CHARGE COMPENSATOR 2 STG 2 WATER TO REFRIGERANT COIL SEE FIGURE 7 STG 2 WATER FLOW CONTROL VALVE SEE FIGURE 7 SW 240 Parts Arrangement STG 1 WATER FLOW CONTROL VALVE SEE FIGURE 8 STG 2 WATER FLOW CO...

Page 3: ...5 1 4 133 41 3 8 1050 3 1 2 89 37 7 8 962 53 1 8 1350 12 1 2 318 OUTDOOR AIR CIRCUIT BREAKER COVER 4 1 4 108 ECONOMIZER DAMPERS Factory Installed Option 1 25 12 1 2 318 18 457 5 1 4 133 1 1 2 38 CONT...

Page 4: ...964 12 3 8 314 12 3 8 314 13 3 8 340 OUTDOOR AIR CIRCUIT BREAKER COVER 4 1 4 108 ECONOMIZER DAMPERS Factory Installed Option OUTDOOR AIR HOOD For Outdoor Air Dampers 4 102 4 102 BOTTOM POWER ENTRY 5 x...

Page 5: ...stalled OPTIONAL OUTDOOR AIR HOOD Factory or Field Installed COMPRESSOR 1 3 4 45 BOTTOM WATER ENTRY WATER TO REFRIGERANT COIL 17 3 8 440 CENTER OF GRAVITY FF EE BB 3 X 12 76 X 305 BOTTOM WATER ENTRY 2...

Page 6: ...Code ANSI NFPA No 70 1984 is available from National Fire Protection Association 1 Batterymarch Park PO Box 9101 Quincy MA 02269 9101 The unit is ETL certified as a heat pump with cooling and with or...

Page 7: ...r linear foot 5mm per linear meter in any direction 3 Frame or supports must be high enough to prevent any form of moisture from entering unit Recommended minimum frame height is 14 356mm 4 Duct must...

Page 8: ...onnections See dimensions in the front of this manual 1 Remove two piece cover and install black iron pipes through openings in base Extend pipes 3 6in 76 152mm above the opening Use the following dia...

Page 9: ...FOUR SCREWS FIGURE 6 WATER TO REFRIGERANT CIRCUIT SW 036 060 WATER IN MANUAL AIR VENT WATER TO REFRIGERANT COIL WATER OUT B39 WATER FLOW CONTROL VALVE ON OFF STRAINER THREE WAY VALVE IN BYPASS POSITIO...

Page 10: ...RS FLEXIBLE MESH BY PASS HOSE DRAIN VALVE WITH HOSE END CONNECTION FIGURE 8 WATER TO REFRIGERANT CIRCUIT SW 240 WATER TO REFRIGER ANT COIL STG 1 B39 STG 1 WATER FLOW CONTROL VALVE ON OFF MANUAL AIR VE...

Page 11: ...water inlet valve to main loop position If running water is not heard circulating make sure the main system pump is running 3 Slowly open the manual air vent bleed port s When the venting stops close...

Page 12: ...ood to unit 2 Pivot hood as shown in figure 12 and secure sides of hood to unit mullions with two sheet metal screws on each side 120 240 Units Outdoor air hood is shipped folded down over the horizon...

Page 13: ...d 6 Install back filter bracket on unit division panel as shown in figure 16 7 Secure side seals to the hood sides as shown in figure 17 8 Install longer front filter bracket on hood top as shown in f...

Page 14: ...they must be routed away from line voltage wiring C Wiring Connections This unit is equipped with a series of integrated modular control IMC boards which control unit function Refer to the IMC manual...

Page 15: ...up mode Refer to the IMC manual provided with each unit to change ECTO options See figure 19 for field wiring FIGURE 19 16 17 TB1 24 VOLT FIELD WIRING IN ZONE SENSOR MODE IMC in Zone Sensor Mode ECTO...

Page 16: ...blower shaft RPM Air filters must be in place when measurements are taken 2 With all access panels in place measure static pressure external to unit from supply to return 3 Referring to tables 2 throu...

Page 17: ...Motor shaft and blower shaft must be parallel 4 Tighten two bolts on other side of base BELT TENSION ADJUSTING BOLT TURN CLOCKWISE TO TIGHTEN FIGURE 22 BLOWER ASSEMBLY SW 240 TO INCREASE BELT TENSION...

Page 18: ...to center of span X with enough pressure to deflect belt 1 64 for every inch of span length or 0 4mm per 25 4mm of span length Example Deflection distance of a 40 span would be 40 64 or 5 8 Example De...

Page 19: ...0 94 991 1 03 1049 1 09 1086 1 13 1132 1 16 2500 907 0 94 968 1 04 1022 1 12 1069 1 16 1113 1 20 1159 1 23 Air Volume cfm EXTERNAL STATIC PRESSURE Inches Water Gauge Drive 0 70 0 80 0 90 1 0 1 10 1 20...

Page 20: ...06 1107 1 09 2400 876 0 86 934 0 94 991 1 03 1040 1 09 1086 1 13 1132 1 16 2500 907 0 94 968 1 04 1022 1 12 1069 1 16 1113 1 20 1159 1 23 Air Volume cfm EXTERNAL STATIC PRESSURE Inches Water Gauge Dr...

Page 21: ...2 27 4400 1 669 1 72 699 1 87 730 2 01 761 2 14 791 2 25 820 2 35 849 2 44 4600 693 1 92 724 2 07 755 2 21 785 2 34 814 2 45 842 2 54 871 2 62 4800 718 2 14 749 2 29 780 2 43 809 2 54 837 2 64 865 2 7...

Page 22: ...2 91 7200 426 1 45 467 1 82 505 2 10 541 2 36 574 2 65 606 2 86 638 3 02 7400 435 1 55 475 1 93 513 2 22 548 2 49 580 2 77 612 2 98 644 3 14 7600 444 1 67 483 2 05 520 2 34 555 2 62 587 2 90 618 3 10...

Page 23: ...775 4 20 812 4 42 849 4 64 886 4 86 8400 711 3 93 746 4 11 782 4 32 819 4 54 855 4 76 892 4 98 8600 718 4 06 752 4 24 788 4 44 825 4 66 862 4 88 898 5 10 8800 725 4 19 759 4 37 795 4 57 831 4 78 868...

Page 24: ...in main loop position B Start Up 1 Initiate first and second cooling demand according to instructions provided with thermostat 2 036 060 Units First stage thermostat demand will energize compressor 1...

Page 25: ...FLOW CONTROL VALVE ON OFF BYPASS CIRCUIT 10 ton units only one in each unit other components are one in each circuit FIGURE 27 REFRIGERANT ROUTING COOLING OPERATION 20 TON UNITS WATER IN WATER TO REFR...

Page 26: ...ATER OUT BYPASS CIRCUIT THREE WAY VALVES 10 ton units only one in each unit other components are one in each circuit FIGURE 29 REFRIGERANT ROUTING HEATING OPERATION 20 TON UNITS REFRIGERANT WATER WATE...

Page 27: ...Refrigerant Charge and Check WARNING Do not exceed nameplate charge under any condition This unit is factory charged and should require no further adjustment If the system requires charge reclaim the...

Page 28: ...heater which must be on 24 hours before running compressors Energize by setting thermostat so that there is no cooling demand to prevent compressor from cycling and apply power to unit 4 Freezestats...

Page 29: ...he antifreeze water mixture freezing point Set stage 2 to initiate a minimum of 5 F above the antifreeze water mixture freezing point For example the freezing point of a 10 mixture of ethylene glycol...

Page 30: ...a Ammonium Hydroxide 0 5 ppm maximum Ammonium chloride Ammonium 0 5 ppm maximum Nitrate Ammonium Sulfate 0 5 ppm maximum Hydrogen Sulfide No level allowable Maintenance Water quality should be checked...

Page 31: ...r and reinstall 5 Replace removable cap and hose end cap Close the hose end drain valve and manual air vents if opened 6 To place the water system valves in the main loop position follow procedure in...

Page 32: ...n Ambient Temp ________Return Air Temp ________ Supply Air Temp ________ Compr Amps Compressor Volts Pressures CC Heater Amps L1 L2 L3 L1 L2 L1 L3 L2 L3 Disch Suct L1 1 2 Water To Refrigerant Coil Che...

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