Carrier 90MA/MF/MU- Manuals

Page 3 - SAFETY SUMMARY; GENERAL SAFETY NOTICES; elsewhere in the manual follows the general safety notices.; FIRST AID

Safety-1 62--10458--00 SAFETY SUMMARY 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 c...

Page 5 - TABLE OF CONTENTS; PARAGRAPH NUMBER

i 62--10458--00 TABLE OF CONTENTS PARAGRAPH NUMBER Page GENERAL SAFETY NOTICES Safety-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FIRST AID Safety-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Page 6 - ii; LIST OF ILLUSTRATIONS; FIGURE NUMBER; LIST OF TABLES; TABLE NUMBER

ii 62--10458--00 LIST OF ILLUSTRATIONS FIGURE NUMBER Page Figure 1 Base Unit Interior Details (Typical) 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 2 Unit Dimensions 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Page 7 - NOTE

1 62--10458--00 1. INTRODUCTION The 90M series single--package cooling units (See Figure 1) are designed to provide air conditioning aboard marine vessels and in industrial applications. The 90MA units are fitted with sea water cooled condensers while the 90MF units are fitted with fresh water coole...

Page 11 - UNIT; Figure 2 Unit Dimensions; HORIZONTAL WHEEL CENTERING; Figure 4 Concentric Wheel Alignment

5 62--10458--00 UNIT 004 006 008,012 A B C 36.19(919) 21.88(556) 59.12(1501) 48(1219) 29.62(752) 69.50(1765) D SEE NOTE 2 E 24(610) F G H J 13.81(351) 13.13(333) 0.75(19) 12.5(318) 16.44(418) 15(381) 0.75(19) 10.62(270) 19.38(492) 17.25(438) 1.31(33) 11.44(291) K L M N P Q R 17.06(433) 20.50(521) 17...

Page 12 - Figure 5 Connection Locations; See Figure 5; Figure 6 Typical Condenser Water Piping

6 62--10458--00 90MA/MF004/006 UNITS 90MU004/006 UNITS 90MA/MU008/012 UNITS 90MU008/012 UNITS UNIT A* B* C* D* E F G 90MA/MF004 1/2 1/2 -- -- ¾ FPT -- -- -- -- 1.75 90MA/MF006 3/4 -- -- 3/4 -- -- -- -- (45) 90MA/MF008/012 1” 1” -- -- -- -- -- -- 90MU004 -- -- -- -- -- -- 1/2 flare 1/2 flare 90MU006 ...

Page 13 - Figure 7 Condensate Drain Trap

7 62--10458--00 Table 4 Recommended Line Sizes, Remote Condenser UNIT LENGTH OF RUN (90MU) 0--25 26--50 51--75 76--100 ( ) DISCH LIQUID DISCH LIQUID DISCH LIQUID DISCH LIQUID 004 1/2 (1.3) 1/2(1.3) 5/8(1.6) 1/2(1.3) 5/8(1.6) 1/2(1.3) 7/8(2.2) 1/2(1.3) 006 5/8(1.6) 1/2(1.3) 7/8(2.2) 1/2(1.3) 7/8(2.2)...

Page 14 - OPERATION; CAUTION; To Start Unit; or

8 62--10458--00 CONTROL WIRING -- On extended voltage (208/230--v) units, the control transformer is factory wired for 208--v usage. If unit is to be used on 230--v system, reconnect primary wiring on transformer. See Figure 13 (004/006 size) or Figure 15 (008/012 size).On all units, the thermostat ...

Page 16 - Table 1, Table 3 or Table 2; Water Regulating Valve; PREPARATION FOR OPERATION.; Condenser; GRAVITY FLOW METHOD

10 62--10458--00 BELT TENSION ADJUSTMENT -- Shut off unit power 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...

Page 17 - Figure 11 Charging Charts

11 62--10458--00 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. Drain condenser ...

Page 18 - Discharge and Suction Pressure Switches

12 62--10458--00 5.10 Evaporator Fan Motor Removal a. Shut off unit main power supply. WARNING Lock open and tag unit disconnect before working on fan motor. Remove fuses and take them with you after noting this on tag. CAUTION Before attempting to remove fan motors or motor mounts, place a piece of...

Page 19 - Figure 12 Mounting Base

13 62--10458--00 BASED O N DRA W ING 50BW 400093 USED ON A 004/ 006 SI ZE 40. 25 52. 00 B 22. 00 27. 31 C 38. 25 50. 00 D 36. 25 48. 00 E -- 1. 25 F -- 45. 50 G 18. 005 23. 31 H -- 0. 75 J -- 25. 81 K 3. 18 -- L 2. 56 -- M 8. 75 -- N 2. 00 -- P 1. 00 -- R 5. 00 9. 00 S 7. 50 6. 00 T 15. 00 16. 50 V ...