Mars Comfort-Aire Century CMA1412SF-0 Installation, Operation And Maintenance Manual Download Page 2

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IOM -

Horizontal/Side Discharge Condensing Units

Horizontal/Side Discharge Condensing Units:

Installation, Operation and Maintenance

TABLE OF CONTENTS

Safety Precautions ................................................................................................................... 3

General Operating Instructions................................................................................................. 4

General Product Information .................................................................................................... 5

Outdoor Unit Installation ........................................................................................................6-7

Unit Wiring ...........................................................................................................................8-12

Wiring Diagrams ..................................................................................................................8-12

Refrigerant Piping ................................................................................................................... 13

Leak Test, Evacuation & Release of Refrigerant .................................................................... 13

Initial Start-Up & Checks ........................................................................................................ 14

Field Charging ........................................................................................................................ 14

Field Inspection ...................................................................................................................... 14

Summary of Contents for Comfort-Aire Century CMA1412SF-0

Page 1: ...orizontal Side Discharge Condensing Units Models CMA1412SF 0 CMA1418SF 1 CMA1424SF 1 CMA1430SF 1 CMA1436SF 1 CMA1448SF 1 Installation Operation and Maintenance Manual 517 787 2100 www marsdelivers com...

Page 2: ...tallation Operation and Maintenance TABLE OF CONTENTS Safety Precautions 3 General Operating Instructions 4 General Product Information 5 Outdoor Unit Installation 6 7 Unit Wiring 8 12 Wiring Diagrams...

Page 3: ...refrigeration cycle explosion and injury 8 Do not modify the length of the power supply cord or use an extension cord and do not share the single outlet with other electrical appliances Otherwise it...

Page 4: ...0 times per hour If you notice more frequent starts call your service contractor 4 For energy conservation reasons you may want to set your thermostat at a higher temperature when you are away Do not...

Page 5: ...uctless air handlers maybe used but often do not include an expansion device A properly sized thermostatic expansion valve is recommended Consult AHRI s directory of certified products for indoor matc...

Page 6: ...snowfall Ensure that the awning is at least 2 ft above the top of the unit s housing Insure free flow of air into and out of the unit Inlets outlets should stay clear of obstructions such as walls an...

Page 7: ...ed to ensure that the air inlets and outlets are not obstructed See Fig 4 Anchor the outdoor unit with a 10mm 3 8 inch diameter bolt and nut tightly on a concrete or rigid surface See Fig 5 Anchoring...

Page 8: ...wiring and or improper electrical supply will likely result in failure of the compressor and other electrical components and voids the warranty NOTE The supply voltage must be consistent with the rate...

Page 9: ...tinued NOTE1 Please refer to the installation instructions of the 24V thermostat used in conjunction with this unit for additional wiring instructions TERMINAL bLOCk OF OUTDOOR UNIT TERMINAL bLOCk OF...

Page 10: ...Horizontal Side Discharge Condensing Units 10 Horizontal Side Discharge Condensing Units OUTDOOR UNIT WIRING CONNECTION continued 12K 18K 10 NOTE For reference only the actual wiring diagram shall pre...

Page 11: ...IOM Horizontal Side Discharge Condensing Units 11 24K 30K 36K Horizontal Side Discharge Condensing Units 11 NOTE For reference only the actual wiring diagram shall prevail...

Page 12: ...IOM Horizontal Side Discharge Condensing Units 12 48K Horizontal Side Discharge Condensing Units 12 NOTE For reference only the actual wiring diagram shall prevail...

Page 13: ...lves 5 Evacuate to 500 microns or less for a minimum of 30 minutes Close the manifold valves and shut off the pump Note the vacuum reading and wait 15 minutes Take a new vacuum reading A reading of 80...

Page 14: ...art up will payoff in the long run Operating conditions such as voltage air flow evaporator coil size and indoor and outdoor temperature and humidity all have an effect on the system pressures and sup...

Page 15: ...t retain a receipted bill of sale as proof of warranty period Without this proof the express warranty begins on the date of shipment from the factory REMEDY PROVIDED BY THE LIMITED EXPRESS WARRANTY Th...

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