90MA/MU
Single-Package Marine Cooling Units
Installation, Operation and Service Instructions
SAFETY CONSIDERATIONS
The 90MA/MU Units are designed to provide safe and reliable service when operated within design specifications. However, due to system pressures, electrical components, and equipment location, some aspects of installation, operation and servicing of this equipment can be hazardous.
Only trained, qualified installers and service technicians should install, operate, and service this equipment.
When working on the equipment, observe all precautions on tags or labels attached to the unit. Safety notes in the literature, and any other safety precautions that apply.
•Follow all safety codes.
•Wear safety glasses and work gloves.
•Use care in handling, rigging, and placing bulky equipment.
WARNING
Never reach into unit while fan is running. Lock open and tag power disconnect before working on a fan. Remove the fuses and take them with you after noting this on tag.
Check assembly and component weight to be sure rigging equipment can handle them safely. Note also any specific rigging instructions.
When steam cleaning coils, be sure area is clear of personnel.
GENERAL
The 90MA/MU water cooled
An accessory discharge plenum may be installed to provide
CONTENTS | Page |
SAFETY CONSIDERATIONS | 1 |
GENERAL | 1 |
INSTALLATION | 1 |
Step 1- Inspect Unit | 1 |
Step 2 - Protect Unit from Damage | 1 |
Step 3 - Provide Unit Support | 1 |
Step 4 - Rig and Place Unit | 8 |
Step 5 - Install Accessory Plenum (If Supplied) | 8 |
Step 6 – Check Fan Shaft and Wheel Alignment | 9 |
Step 7 - Install Ventilation Ductwork (If Required) | 9 |
Step 8 - Check | 9 |
Step 9 - Check Compressor Spring Mounts |
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(*08 & *12) | 9 |
Step 10 - Make Condenser Connections | 9 |
Step 11 - Install Unit Drain Line | 11 |
Step 12 - Make Electrical Connections | 12 |
OPERATION | 12 |
To Start Unit | 12 |
To Shut Down Unit | 12 |
Service Valves | 12 |
SERVICE | 13 |
13 | |
Access Panel Removal | 13 |
Evaporator Fan Adjustment | 13 |
Lubrication | 13 |
13 | |
Condensate Drains | 13 |
Evaporator Coil | 14 |
Water Regulating Valve | 14 |
Condenser | 14 |
Charging the System | 15 |
Evaporator Fan Motor Removal | 15 |
Pressure Relief Device | 15 |
Crankcase Heater | 15 |
15 | |
Discharge And Suction Pressure Switches | 16 |
Oil Charge | 16 |
WIRING SCHEMATIC - *04/*06 | 17 |
COMPONENT ARRANGEMENT - *04/*06 | 18 |
WIRING SCHEMATIC - *08/*12 | 19 |
COMPONENT ARRANGEMENT - *08/*12 | 20 |
UNIT SUPPORT DRAWINGS | 21 |
INSTALLATION
Step 1 - Inspect Unit - 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.
Step 2 - Protect Unit from Damage - To maintain warranty, protect unit against adverse weather, theft, or vandalism on job site.
Step 3 - Provide Unit Support - Refer to Figure 2 and Tables 1A/B/C/2A/B/C for unit size and weight. If desired, construct a frame of
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations
Printed in U.S.A. | Pg 1 | |
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