Related Manuals for Carrier 90MA/MF/MU
Summary of Contents for Carrier 90MA/MF/MU
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Page 1: Cooling Unit
Marine/Industrial Single Package Cooling Unit Models 90MA/MF/MU, Design Series Two Beginning Serial Number C00400 62- -10458- -00... - Page 2 90MA/MF/MU, Design Series Two Beginning Serial Number C00400 Carrier Refrigeration Operations, A member of the United Technologies Corporation family. Stock symbol UTX. Carrier Transicold, Carrier Corporation, P.O. Box 4805, Syracuse, N.Y. 13221 U. S. A. Carrier Corporation 2000 D Printed in U. S. A. 0700...
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Page 3: General Safety Notices
GENERAL SAFETY NOTICES The following general safety notices supplement the specific warnings and cautions appearing elsewhere in this manual. They are recommended precautions that must be understood and applied during operation and maintenance of the equipment covered herein. The general safety notices are presented in the following three sections labeled: First Aid, Operating Precautions and Maintenance Precautions. - Page 4 Sharp edges of coil fins are exposed. To prevent injury, cover top of evaporator with cardboard or a few layers of heavy tape. To avoid coil damage, cover evaporator face with plywood or other rigid sheet material. If any coil fins are mashed or bent, straighten with a coil fin comb of the proper tooth spacing (refer to “coil fins/inch”...
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Page 5: Table Of Contents
PARAGRAPH NUMBER GENERAL SAFETY NOTICES FIRST AID ..............OPERATING PRECAUTIONS MAINTENANCE PRECAUTIONS SPECIFIC WARNING AND CAUTION STATEMENTS... - Page 6 Figure 15 Wiring Schematic - - 90MA/MF/MU008/012 Figure 16 Component Arrangement - - 90MA/MF/MU008/012 TABLE NUMBER Table 1 90MA/MF/MU Physical Data - - Refrigerant 22 Table 2 90MA/MF/MU Physical Data - - Refrigerant 407C Table 3 90MA/MF Physical Data - - Refrigerant 134a...
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Page 7: Introduction
Check unit against shipping order. Inspect carefully for concealed shipping damage. If shipment is damaged or incomplete, file claim with transportation company and advise Carrier Transicold immediately. Protect Unit from Damage To maintain warranty, protect unit against adverse weather, theft, or vandalism on job site. -
Page 8: Condenser Connections
MPT = Male Pipe Thread NOTES: 1. Motors and drives other than those furnished with unit must be purchased separately. Contact your Carrier Transicold represen- tative. 2. Accessory heating coil in 004 and 006 units is combination hot water/steam. See hot water data. -
Page 9: Table 2 90Ma/Mf/Mu Physical Data - - Refrigerant 407C
MPT = Male Pipe Thread NOTES: 1. Motors and drives other than those furnished with unit must be purchased separately. Contact your Carrier Transicold represen- tative. 2. Accessory heating coil in 004 and 006 units is combination hot water/steam. See hot water data. -
Page 10: Table 3 90Ma/Mf Physical Data - - Refrigerant 134A
LEGEND FPT = Female Pipe Thread MPT = Male Pipe Thread NOTES: 1. Motors and drives other than those furnished with unit must be purchased separately. Contact your Carrier Transicold represen- tative. 62--10458--00 R- -134a - - English Units UNITS... -
Page 11: Check Return- -Air Filters
b. Attach a one- -inch (2.5 cm) flange or attach a flanged, flexible duct connection directly to unit. If an outdoor makeup air damper is to be installed, at- tach it directly to unit back panel and install flexible connection between damper and remaining duct- work. -
Page 12: Check Compressor Spring Mounts (008 & 012 Size Only)
90MA/MF004/006 UNITS 90MU004/006 UNITS UNIT 90MA/MF004 90MA/MF006 90MA/MF008/012 90MU004 90MU006 90MU008/012 * A = Condenser In, B & C = Condenser Out, D = Condensate, all Female Pipe Thread, E = Liquid Refrigerant (field cut), F = Refrigerant Discharge (field cut), G = Electrical Opening 3.11 Check Compressor Spring Mounts (008 &... -
Page 13: Install Condensate Drain Line
Correct improper voltage or phase imbalance. Unit failure as a result of operation on improper line voltage or excessive phase imbalance constitutes abuse and shall void the Carrier warranty. Use the following formula to determine the percent voltage imbalance. 51- -75... -
Page 14: Control Wiring
To wire these units to a remote thermostat, or to a remote control switch and thermostat, refer to unit Wiring Diagram or contact your Carrier Transicold representative. OPERATION CAUTION Compressor crankcase heater must be ener- gized for 24 hours prior to start up to prevent compressor bearing damage. -
Page 15: Figure 8 Fan Pulley Adjustment
switch T- -HIGH to energize liquid line solenoid (LLS) [to activate the full evaporator coil and all compressor cylinders]. If thermostat switch T- -HIGH is not calling for cooling, power flows to energize compressor unloader solenoid (US) [to unload compressor cylinders]. -
Page 16: Figure 9 Gravity Flow Method
Shut off unit power BELT TENSION ADJUSTMENT - - supply. Loosen fan motor from mounting bracket. Do not loosen motor mounting bracket from unit. Move fan motor up or down until proper belt tension is achieved (approximately 3/4- -in. deflection with 8- -pound tension at midpoint of belt span). -
Page 17: Refrigerant Charging
c. Regulate flow to condenser with a supply line valve. If pump is a non- -overloading type, the valve may be fully closed while pump is running. For average scale deposit, allow solution to remain in condenser over- night. For heavy scale deposit, allow 24 hours. d. -
Page 18: Evaporator Fan Motor Removal
24 hours. When additional oil or a complete charge is required, use only the following Carrier approved oil. R- -22 Units Design Series One 204/206 size units Witco part number 999- -5170- -55... -
Page 19: Figure 12 Mounting Base
Figure 12 Mounting Base 62--10458--00... -
Page 20: Figure 13 Wiring Schematic - - 90Ma/Mf/Mu004/006
FIELD POWER SUPPLY GROUND (SEE NOTE 3) TB1- -4 T- -LOW OPTIONAL ELECTRIC DUCT HEATER GROUND TB1- -4 TB1- -3 Figure 13 Wiring Schematic - - 90MA/MF/MU004/006 62--10458--00 WIRE PASSES THOUGH LOOP OF CL TRAN 24VOLT 90MU UNITS ONLY LOGIC TB1- -5 HEATERS SEE NOTE 1... -
Page 21: Figure 14 Component Arrangement - - 90Ma/Mf/Mu004/006
CONTROL BOX C1 IFC C1 CFR LEGEND AIR SWITCH AUTOMATIC CUTOUT COMPRESSOR COMPRESSOR CONTACTOR CRANKCASE HEATER CONDENSER FAN RELAY CHR CRANKCASE HEATER RELAY COMPRESSOR LOCKOUT DISCHARGE PRESSURE SWITCH FUSE CONTROLLING HEAT CONTACTOR BACKUP HEAT CONTACTOR INDOOR FAN CONTACTOR INDOOR FAN MOTOR INTERNAL PROTECTOR--COMPRESSOR INTERNAL PROTECTOR--FAN MOTOR MANUAL (RESET) CUTOUT... -
Page 22: Figure 15 Wiring Schematic - - 90Ma/Mf/Mu008/012
FIELD POWER SUPPLY GROUND (SEE NOTE 3) TB1- -4 T- -LOW 90MA012 UNITS ONLY T- -HIGH OPTIONAL ELECTRIC DUCT HEATER GROUND TB1- -4 TB1- -3 Figure 15 Wiring Schematic - - 90MA/MF/MU008/012 62--10458--00 TRAN 24VOLT TB1- -1 90MU UNITS ONLY LOGIC TB1- -5 C DT1... -
Page 23: Figure 16 Component Arrangement - - 90Ma/Mf/Mu008/012
CONTROL BOX C1 IFC C1 CFR LEGEND AIR SWITCH AUTOMATIC CUTOUT COMPRESSOR COMPRESSOR CONTACTOR CRANKCASE HEATER CONDENSER FAN RELAY CHR CRANKCASE HEATER RELAY COMPRESSOR LOCKOUT DUMMY TERMINAL DISCHARGE PRESSURE SWITCH FUSE CONTROLLING HEAT CONTACTOR BACKUP HEAT CONTACTOR INDOOR FAN CONTACTOR INDOOR FAN MOTOR INTERNAL PROTECTOR--COMPRESSOR INTERNAL PROTECTOR--FAN MOTOR... - Page 24 Access Panel, 9 Accessory Plenum, 1 Air Filter, 5, 10 Component Arrangement, 15, 17 Condensate Drain, 7, 10 Condenser, 10 Condenser Connections, 6 Crankcase Heater, 12 Cycle- -Loc, 12 Electrical Connections, 7 Evaporator Coil, 10 Fan Adjustment, 9 Fan Motor, 12 Fan Shaft, 5 Heating Coil, 1 Installation, 1...
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