Carrier 50TCM Series Installation, Operation And Maintenance Manual Download

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Subject to change without notice

Installation, Operation and Maintenance

Manufacturing point: Jeddah, Saudi Arabia
Nearest port of embarkation: Jeddah Islamic port
Product classification: Commercial

50TCM – 50Hz

Nominal Cooling Capacity 6 – 12.5 Tons

HFC R

410A Refrigerant

The 50TCM units are single side discharge rooftop cooling unit utilizing electric heat as an option. Units are pre-

wired, pre-charged with R-410A refrigerant, and tested at the factory. These units can be placed on the side of a

building or can be placed on a roof without roof curbs. Each unit is designed to occupy a minimal space. Piping and

drain connections are readily accessible.

Contact your local Carrier representative for additional reference materials.

Package Rooftop Units – 50Hz

Quality Assurance

Certificate Reg. No:

04 100 950420

Page 1

Summary of Contents for 50TCM Series

Page 1: ...arge rooftop cooling unit utilizing electric heat as an option Units are pre wired pre charged with R 410A refrigerant and tested at the factory These units can be placed on the side of a building or can be placed on a roof without roof curbs Each unit is designed to occupy a minimal space Piping and drain connections are readily accessible Contact your local Carrier representative for additional ...

Page 2: ... 2 Internal Wiring 17 3 3 Compressor Mounting 17 3 4 Refrigerant Service Ports 17 3 5 Compressor Rotation 17 3 6 Evaporator Fan 17 3 7 Condenser Fans and Motors 17 3 8 Return Air Filters 17 3 9 Base Unit Operation 17 4 0 SERVICE 18 4 1 Cleaning 18 4 2 Lubrication 18 4 3 Evaporator Fan Performance Adjustment 19 4 4 Evaporator Fan Service and Replacement 19 4 5 Belt Tension Adjustment 20 4 6 Condens...

Page 3: ...ed to highlight suggestions which will result in enhanced installation reliability or operation 1 2 Installation Safety Considerations After the unit has been received and when it is ready to be installed or reinstalled it must be inspected for damage If damage is detected upon receipt immediately file a claim with the shipping company or repair This machine must be installed in a location that is...

Page 4: ...2 systems Do not use R 22 service equipment or components on Puron refrigerant equipment WARNING PERSONAL INJURY AND ENVIRONMENTAL HAZARD Failure to follow this warning could cause personal injury death and or equipment damage Relieve pressure and recover all refrigerant before system repair or final unit disposal Wear safety glasses and gloves when handling refrigerants Keep torches and other ign...

Page 5: ...urn Air Filter Qty Size in 4 16x16x2 4 16x20x2 Fan Quantity Fan Size in 1 10 x 10 Fan Type Drive Type Motor Type Motor Qty Maximum BHP 1 4 2 4 FLA 3 4 Efficiency Full Load 81 RPM Range 855 1211 665 903 Shaft Diamter in 7 8 Motor Frame Size Motor Qty Maximum BHP 3 1 3 9 FLA 4 4 7 4 Efficiency Full Load RPM Range 1077 1449 808 1082 837 1056 Shaft Diamter in Motor Frame Size 56HZ 145TY 7 8 81 692 932...

Page 6: ... LPHQVLRQV 7 8 85 6 76 0 16 216 7 007 Page 6 ...

Page 7: ...d e g metal masonry wall 36 in 914 mm Surface behind servicer is electrically non conductive e g wood fiberglass Special Check for sources of flue products within 10 ft of unit fresh air intake hood C 36 in 914 mm Side condensate drain is used 18 in 457 mm Minimum clearance D 42 in 1067 mm Surface behind servicer is grounded e g metal masonry wall another unit 36 in 914 mm Surface behind servicer ...

Page 8: ... 85 6 76 0 16 216 7 0 LPHQVLRQV 7 5 5 Page 8 ...

Page 9: ...n 305 mm Minimum clearance use manual ratchet screwdriver B 12 in 305 mm If dimension A is 36 in 914 mm Special Check for sources of flue products within 10 ft of unit fresh air intake hood C 36 in 914 mm Side condensate drain is used 18 in 457 mm Minimum clearance D 42 in 1067 mm Surface behind servicer is grounded e g metal masonry wall another unit 36 in 914 mm Surface behind servicer is electr...

Page 10: ... LPHQVLRQV 7 85 6 76 0 16 216 7 0 5 5 Page 10 ...

Page 11: ...d e g metal masonry wall 36 in 914 mm Surface behind servicer is electrically non conductive e g wood fiberglass Special Check for sources of flue products within 10 ft of unit fresh air intake hood C 36 in 914 mm Side condensate drain is used 18 in 457 mm Minimum clearance D 42 in 1067 mm Surface behind servicer is grounded e g metal masonry wall another unit 36 in 914 mm Surface behind servicer ...

Page 12: ... in Fig 1 For the centre of gravity coordinates the position of the unit mounting holes and the weight distribution points refer to the Unit Dimensional Drawing Fig 1 Unit Clearance Diagram NOTES 1 Consider also the effect of adjacent units 2 Do not install unit in an indoor location 2 3 Inspect Unit Inspect unit for transportation damage File any claim with transportation agency Confirm before in...

Page 13: ...ey are in the right places Although the unit is weatherproof guard against water from higher level runoff and overhangs Unit may be installed directly on wood flooring or on approved roof covering material when roof curb is used Do not install unit in an indoor location Do not locate air inlets near exhaust vents or sources of contaminated air Curb should be level This is necessary for unit drain ...

Page 14: ... the red plug in the alternate bottom connection is tight Do this before setting the unit in place The red drain pan can be tightened with a 1 2 in square socket drive extension To use the alternate bottom drain connection remove the red drain plug from the bottom connection use a 1 2 in square socket drive extension and install it in the side drain connection The piping for the condensate drain a...

Page 15: ...Maximum Over current Protection device size All field wiring must comply with NEC and local requirements 1 Install power wiring conduit through side panel openings Install conduit between disconnect and control box 2 Install power lines to terminal block connections Voltage to compressor terminals during operation must be within voltage range indicated on unit nameplate On 3 phase units voltages b...

Page 16: ...uns up to 15 m 50 ft use no 18 AWG American Wire Gage insulated wire 35_C minimum For 15 to 23 m 50 to 75 ft use no 16 AWG insulated wire 35_C minimum For over 23 m 75 ft use no 14 AWG insulated wire 35_C minimum All wire sizes larger than no 18 AWG cannot be directly connected to the thermostat and will require a junction box and splice at the thermostat Fig 8 Typical Low Voltage Control Connecti...

Page 17: ...o alter fan performance see Evaporator Fan Performance Adjustment section 3 7 Condenser Fans and Motors Fans and motors are factory set Refer to Condenser Fan Adjustment Section as required 3 8 Return Air Filters Check that correct filters are installed in filter tracks See Table 1 Physical data Do not operate unit without return air filters 3 9 Base Unit Operation COOLING UNITS when thermostat ca...

Page 18: ...RATOR COIL Clean as required with a commercial coil cleaner CONDENSER COIL Clean condenser coil annually and as required by location and outdoor air conditions Inspect coil monthly and clean as required CONDENSATE DRAIN Check and clean each year at start of cooling season FILTERS Clean or replace at start of each heating and cooling season or more often if operating conditions require Refer to Tab...

Page 19: ...acement 1 Remove supply air section panel The bolts holding the flexible connection to the panel should be removed 2 Remove the Control Side panel 3 Remove the Belt refer to the previous section for Belt removal 4 Remove the locking device of the hub shaft from the both sides it can be accessed throw the fan side panel 5 Pull the shaft gently from the control side the blower will fall inside the b...

Page 20: ...m weight in the specified amount of refrigerant refer to Table 1 LOW CHARGE COOLING Using cooling charging chart according to the size of the unit Add or remove refrigerant until conditions of the chart are met Note that charging chart is different from those normally used An accurate pressure gage and temperature sensing device is required Charging is accomplished by ensuring the proper amount of...

Page 21: ...s If either switch trips it will be automatically reset when fault is cleared 4 9 Control Circuit 24 V This control circuit is protected against over current by a circuit breaker Breaker can be reset manually if it trips determine cause of trouble before resetting 5 0 REPLACEMENT PARTS A complete list of replacement parts may be obtained from any Carrier distributor NOTE IMPORTANT After prolonged ...

Page 22: ... 0 2 6 CRHEATER113A00 11 5 16 5 23 9 25 7 6 51 5 6 2 52 0 2 1 2 1 8 2 0 2 6 CRHEATER114A00 19 3 27 9 38 1 40 7 6 51 5 6 2 52 0 2 1 2 1 8 2 0 2 6 CRHEATER115A00 22 9 33 1 44 6 45 7 6 51 5 6 2 52 0 2 1 2 1 8 2 0 2 6 CRHEATER114A00 116A00 29 0 41 8 55 5 60 7 6 51 5 6 2 52 0 2 1 2 1 8 2 4 3 4 22 7 30 7 6 51 5 6 2 52 0 2 1 2 1 8 2 4 3 4 CRHEATER116A00 9 7 13 9 22 7 30 7 6 51 5 6 2 52 0 2 1 2 1 8 2 4 3 ...

Page 23: ... 7 13 9 33 5 40 9 7 64 0 10 6 74 0 1 1 3 4 3 9 7 4 CRHEATER113A00 11 5 16 5 33 5 40 9 7 64 0 10 6 74 0 1 1 3 4 3 9 7 4 CRHEATER114A00 19 3 27 9 44 1 45 9 7 64 0 10 6 74 0 1 1 3 4 3 9 7 4 CRHEATER115A00 22 9 33 1 50 6 60 9 7 64 0 10 6 74 0 1 1 3 4 3 9 7 4 CRHEATER114A00 116A00 29 41 8 61 5 70 Legend and Notes for Electrical Data Table AB 397 392 5v BC 404 397 7v AC 457 397 2v AB 392v BC 404v Determ...

Page 24: ...Typical Wiring Schematic 50TCMA07 400V Page 24 ...

Page 25: ...Typical Wiring Schematic 50TCMD08 09 400V Page 25 ...

Page 26: ...Typical Wiring Schematic 50TCMD12 14 400V Page 26 ...

Page 27: ...Typical Control Schematic 50TCMA Series Page 27 ...

Page 28: ...Typical Control Schematic 50TCMD Series Page 28 ...

Page 29: ... 82 1 98 864 2 09 2 27 RPM KWI BHP RPM KWI BHP RPM KWI BHP RPM KWI BHP RPM KWI BHP 2250 832 1 42 1 54 882 1 65 1 79 928 1 90 2 06 2438 851 1 55 1 68 899 1 79 1 94 2625 870 1 69 1 84 918 1 94 2 11 2813 890 1 86 2 02 3000 912 2 04 2 21 3188 3375 3563 3750 Normal Font Field Installed Drive Package 8 Conversion Bhp to KWI 1 2 1 4 1 6 1 8 2 0 Legend 5 Extensive motor and drive testing on these units en...

Page 30: ... 1023 2 33 2 53 3500 886 1 88 2 05 929 2 07 2 24 969 2 25 2 44 1008 2 43 2 64 1045 2 61 2 84 3750 912 2 15 2 33 954 2 34 2 54 994 2 53 2 75 1031 2 74 2 97 1068 2 93 3 18 4000 940 2 43 2 64 980 2 64 2 87 1019 2 85 3 09 1056 3 06 3 32 1092 3 26 3 54 4250 968 2 75 2 98 1007 2 97 3 22 1045 3 19 3 47 1081 3 40 3 70 1117 3 63 3 94 4500 996 3 09 3 36 1035 3 32 3 61 1072 3 56 3 86 1108 3 79 4 11 Normal Fo...

Page 31: ...alics Font Medium Drive Package Medium Static Motor RPM Revolutions Per Minute KWI Kilo Watts Input to Motor BHP Brake Horsepower Input to Fan CFM Cubic Feet per Minute in wg Inch Water Gage Notes 1 Do not adjust motor rpm such that motor maximum bhp and or watts is exceeded at the maximum operatin cfm 2 Static Pressure i e Filters must be added to external static pressure before entering fan perf...

Page 32: ...Charging Chart 400V 50Hz 50TCMA07 Charging Chart 400V 50Hz 50TCMD08 CIR 1 Page 32 ...

Page 33: ...Charging Chart 400V 50Hz 50TCMD08 CIR 2 Charging Chart 400V 50Hz 50TCMD09 CIR 1 Page 33 ...

Page 34: ...Charging Chart 400V 50Hz 50TCMD09 CIR 2 Charging Chart 400V 50Hz 50TCMD12 CIR 1 Page 34 ...

Page 35: ...Charging Chart 400V 50Hz 50TCMD12 CIR 2 Charging Chart 400V 50Hz 50TCMD14 CIR 1 Page 35 ...

Page 36: ...Charging Chart 400V 50Hz 50TCMD14 CIR 2 Page 36 ...

Page 37: ... line filter driers with rated working pressures less than 600 psig Do not leave R 410A refrigerant suction line filter driers in line longer than 72 hours Do not install a suction line filter drier in liquid line POE oils absorb moisture rapidly Do not expose oil to atmosphere POE oils may cause damage to certain plastics and roofing materials Wrap all filter driers and service valves with wet cl...

Page 38: ...te leak repair and recharge Air in system Recover refrigerant evacuate system and recharge Condenser coil dirty or restricted Clean coil or remove restriction Dirty drier filter Replace filter Dirty condenser coil Clean coil Refrigerant overcharged Recover excess refrigerant Faulty TXV 1 Check TXV bulb mounting and secure tightly to suction line 2 Replace TXV if stuck open or closed Air in system ...

Page 39: ...IS LEVEL 1 ALL PACKING MATERIALS HAVE BEEN REMOVED FROM THE UNIT Tear Along This Line L2 L2 III START UP ELECTRICAL 8 ENERGIZE CRANKCASE HEATERS FOR 12 HOURS 9 CORRECT FAN ROTATION HAS BEEN CONFIRMED 10 SEALED ALL POWER AND CONTROL WIRES ENTRY INTO THE UNIT AND INSIDE THE BOX L3 L1 L3 L3 L3 L2 L3 L2 TEMPERATURES BOTH CIRCUITS OPERATING SUPPLY VOLTAGE COMPRESSOR 1 AMPS COMPRESSOR 2 AMPS INDOOR FAN ...

Page 40: ... rights to discontinue or change at any time specifications or designs without notice and without incurring any obligations Supersedes Version 50TCM IOM01 Catalog Number 50TCM IOM02 Effective Date 12 07 2016 Phase 50Hz Page 40 ...

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