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06E,07E
Compressors and Condensing Units
Installation, Start-Up and
Service Instructions
Hermetic, Water-Cooled
CONTENTS INSTALLATION
Page
Receive and Inspect Unit — Inspect shipment for
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1
damage. File claim with the shipping company if shipment is
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
damaged or parts are missing.
Receive and Inspect Unit. . . . . . . . . . . . . . . . . . . . . . . .
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Piping Connections — Attach water supply and return 243 + 236 + 238 Average Voltage = lines to connections indicated on condensing unit (Fig. 2). 3 Water leaving condenser should not be connected directly into 717 sewer lines; check local codes. = 3 Attach refrigerant liquid and suction lines to condensing = 239 volts unit (Fig. 2); suction and discharge lines to compressor unit (Fig. 3 and 4). Discharge line muffler and check valve are Determine maximum deviation from average voltage: factory
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3 DIMENSIONS (in.) UNIT 07E VOLTS A B C D E F G H I 3 3 1 9 5 208/230 66 49 / 2 / 34 27 / 121 5 / 9 / 4 4 2 16 16 A022 3 3 9 5 460, 575 66 43 / 2 / 34 26 1 21 5 / 9 / 4 4 16 16 3 3 1 9 5 208/230 78 49 / 2 / 34 27 / 121 5 / 9 / 4 4 2 16 16 B027 3 3 9 5 460, 575 78 43 / 2 / 34 26 1 21 5 / 9 / 4 4 16 16 3 3 1 9 5 208/230 78 49 / 2 / 34 27 / 121 5 / 9 / 4 4 2 16 16 B033 3 3 9 5 460, 575 78 43 / 2 / 34 26 1 21 5 / 9 / 4 4 16 16 1 3 3 1 1 5 208/230 69 / 49 / 2 / 34 27 / 121 4 / 8 / 2 4 4 2 8 8 D044 1
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NOTE: Recommended service space is 3 ft-0 in. at compressor motor end to allow for motor removal. DIMENSIONS (in.) 06E UNIT VOLTAGE A B C D E F G 1 7 1 1 1 208/230 48 / 35 36 / 1 / 27 / 119 / 4 8 2 2 2 V022 1 7 1 1 460,575 48 / 29 36 / 1 / 26 1 19 / 4 8 2 2 1 7 1 1 1 208/230 50 / 35 36 / 1 / 27 / 119 / 4 8 2 2 2 W027 1 7 1 1 460,575 50 / 29 36 / 1 / 26 1 19 / 4 8 2 2 1 7 1 1 1 208/230 50 / 35 36 / 1 / 27 / 119 / 4 8 2 2 2 W033 1 7 1 1 460,575 50 / 29 36 / 1 / 26 1 19 / 4 8 2 2 1 7 1 1 1 208/230
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Table 1 — Electrical Data — Compressor Motor With Circuit Breaker COMPRESSOR MOTOR DATA CIRCUIT BREAKER Motor Compressor Maximum LRA-PW Recommended Voltage Maximum Winding Recommended Part Hp Must Trip LRA-XL (first Circuit Breaker MHA MTA LRA (3 Ph - 60 Hz) RLA Resistance RLA Number 06E Amps winding) Part No. (Ohms) 208/230 108 87 345 207 0.32 HH83XB336 91 104 350 74.3 250 575 20 45 36 120 72 2.2 XA461 33 38 124 27.1 460 54 44 173 104 1.3 XA424 42 49 175 35.0 208/230 140 112 446 268 0.27 HH83XC
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LEGEND AUX — Auxiliary M1 — Evaporator Fan or Terminal Block Connector C— Compressor Contactor Chilled Water Pump C1 — Compressor Contactor M2 — Cooling Tower Pump (XL start and first step of PW start) M3 — Cooling Tower Fan Unmarked Terminal C2 — Compressor Contactor NEC — National Electrical Code (PW second step) OPS — Oil-Pressure Switch Marked Terminal CH — Crankcase Heater POR — Pumpout Relay CHR — Crankcase Heater Relay PW — Part Wind Factory Wiring CR — Control Relay SW — Start-Stop-Reset
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operation. To add or remove oil, see Carrier Standard Service PRE-START-UP Techniques Manual, Chapter 1, Refrigerants. IMPORTANT: Use only Carrier approved compressor oil. Do not reuse oil that has been drained and do not use oil When charging, or when removing charge, circulate water that has been exposed to atmosphere. through water-cooled condenser and cooler continuously to prevent freezing. Freezing damage is considered abuse and Approved compressor oils*: is not covered by Carrier warranty
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Table 3 — 07E Physical Data UNIT 07E A022 B027 B033 D044 OPERATING WEIGHT (lb) 1090 1200 1250 1410 REFRIGERANT R-134a, R-22, R-507/404A COMPRESSOR — 06E* A250 A265 A275 A299 Cylinders 4666 11 11 11 11 Bore (in.) 2 / 2 / 2 / 2 / 16 16 16 16 3 3 7 Stroke (in.) 2 / 22 / 2 / 16 16 8 Displacement (cfm at 1750 rpm) 50 68 75 99 Oil Charge (pt) 14 19 19 19 High Side Maximum Pressure (psi) 450 Low Side Maximum Pressure (psi) 245 CONDENSER (Shell and Tube)† Part Number P701-0840AX P701-0850AX P701-0850AX
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exceeds 295 ± 5 F, the sensor contacts open and the compressor SERVICE shuts down. The sensor reset temperature is 235 F minimum. Protection Devices See Fig. 8 for control circuit connections. HIGH-PRESSURE SWITCH — Check by throttling con- Capacity Control System denser water or blocking airflow on air-cooled units, allowing CAPACITY CONTROL VALVE (Fig. 9) — Valve is con- head pressure to rise gradually. Check discharge pressure trolled by suction pressure and actuated by discharge pressure. co
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To Regulate Control Set Point — Turn adjustment nut Replacing Suction Cutoff Unloading Heads — When the clockwise to its bottom stop. In this position, set point is original compressor is equipped with suction cutoff unloading 86 psig. Control set point is then regulated to desired pressure head(s), the complete cylinder head and control valve assem- by turning adjustment nut counterclockwise. Each full turn blies must be transferred to the service (replacement) compres- decreases set point by a
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NOTE: Pressure-operated control valve shown. A solenoid-operated control valve can also be used. Fig. 10 — Suction Cutoff Unloader Operation 11
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78 9 18 3 14 15 16 17 19 10 20 21 23 22 4 5 6 1 2 31 26 32 33 31 25 31 34 32 35 33 36 24 32 37 38 38 39 40 41 41 29 30 28 27 11 13 12 LEGEND 32 — Valve Plate Assembly (includes dis- 1— Stator (Compressor Motor) 17 — Oil Sight Glass Screw 18 — Oil Sight Glass Lock Washer charge valves) 2— Rotor (Compressor Motor) 33 — Cylinder Head Gasket 3— Motor Key 19 — Pipe Plug (Hex Head) 20 — Crankshaft 34 — Cap Screw, Valve Stop 4— Rotor Plate Washer 35 — Valve Stop Support 5— Rotor Lock Washer 21 — Ring S
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Table 6 — Torque Values REMOVE 8 CAP SCREWS SIZE TORQUE THREADS DIAM RANGE USAGE PER IN. (in.) (lb-ft) 1 / 27 (pipe) 8-12 Pipe Plug — Crankshaft 16 1 / 18 (pipe) 20-25 Pipe Plug — Crankcase 4 8-10 Conn. Rod Cap Screw 1 / 20 4 8-12 Junction Box 3-5 Sight Glass 14-18 Oil Pump Drive Segment 1 / 28 14-18 Unloader Valve 4 14-18 Discharge Valve Stop 12-15 Head Gasket Positioning Screw OIL Cover Plate — Pump End Bearing 15-24 PRESSURE 5 / 18 (pipe) Head 16 TAP 15-24 Discharge Service Valve (4 cyl) PUM
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Keep each connecting rod and piston assembly together for Cylinder Heads (See Fig. 11) — Disassemble cyl- proper reassembly. Check all parts and crankpins for wear inder heads by removing cap screws, and prying up on side (refer to Table 7 for wear limits). lifting tabs to break heads loose from valve plates. Do not hit cylinder heads to break loose. Check heads for warping, cracks and damage to gasket surfaces. When replacing cylinder head, torque cap screws 90 to 100 lb-ft (prevents high to lo
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Compressor Running Gear Replacement CRANKSHAFT — Be sure compressor end bearing washer is in place on dowel pin. Install crankshaft through pump end, carefully guiding it through main bearings. Replace rotor. CRANKSHAFT CONNECTING ROD/PISTON ASSEMBLY (Fig. 18) — The assembly of the connecting rod with contoured-crown piston CONNECTING RODS AND must be as shown. Note the relationship of the piston crown CAPS pattern with the chamfered side of the rod bearing. This ensures that the rods in the out
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Turn crankshaft to be sure there is no binding between Push stator into housing until it lines up correctly with rotor bearing surfaces and journals. Replace oil screen, bottom cover (Fig. 22). plate, valve plates and cylinder heads. Line up keyways in stator and crankcase and replace stator locking assembly, then drive key into keyway and stake over DOWELS IN keyway in stator to secure key. When a new motor is being CYLINDER DECK DOWEL FOR SUCTION installed, the stator must be drilled and a new
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2. Remove burned motor from compressor, and drain com- pressor oil. Clean crankcase and motor housing with END solvent. Ensure that all metal particles are wire-brushed STATOR TURN free and removed. On severe burnouts, disassemble compressor heads and valve plate assemblies. Clean them in same manner as crankcase and motor housing. 3. Determine cause of burnout and remedy. Check control END RING box for welded starter contacts, welded overload contacts ROTOR or burned out heater elements. Check
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CENTRIFUGAL PUMP 1/2 HP CLOSE VENT PIPE FILL CONDENSER WITH GAS VENT 30 GPM AT 35’ HEAD VALVE WHEN CLEANING SOLUTION. DO PUMP IS PRIMING NOT ADD SOLUTION GLOBE PUMP RUNNING CONN. MORE RAPIDLY THAN VALVES VENT CAN EXHAUST SUCTION GASES CAUSED BY CHEMICAL ACTION. PUMP SUPPORT 1” PIPE 1” PIPE CONDENSER VENT PIPE 5’ APPROX TANK REMOVE WATER REGULATING VALVE 3’ TO 4’ RETURN FINE MESH CONDENSER SCREEN Fig. 25 — Forced Circulation Fig. 24 — Gravity Circulation 18
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Copyright 2001 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book2244 PC 802 Catalog No. 530-601 Printed in U.S.A. Form 06/07E-1SI Pg 20 5-01 Replaces: 06E,07E-9SI Tab 1b2a2b3a
