Installation and Operation Manual
MAC Series
Condensing Units
Replaces H-IM-67H (01/18)
TABLE of CONTENTS
General safety and inspection
Condensing unit specications ............................... 2
Evaporator unit specications ................................. 3
Evaporator placement ............................................. 4
Condensing Unit placement.....................................5
Refrigerant piping and line sizes ..........................6-8
Leak detection and evacuation ................................ 9
Field wiring ........................................................... 10
Beacon II Controller
Installation .......................................................... 11
Refrigerant line brazing
Power supply
Wiring ................................................................ 12
Box temp control settings
Refrigerant charging
Start-up operation ............................................... 13
Initial power on
Operating mode display ..................................... 14
Program & review settings/changes ..............15-18
Low ambient operation
Pumpdown ....................................................19-20
Defrost ................................................................ 20
Alarms and error indicator LED ........................ 21
Evaporator fans shut down by operators
Power failure
Space sensor terminal
Checking sensors ............................................... 22
System defaults
Control sensor and piping .................................. 23
Checking operation of exp. valve
Exp. valve motor winding resistance ................. 24
Smart Controller ............................................25-36
Operational checkout ......................................... 37
Preventive maintenance ................................38-40
Diagnostics .......................................................41-44
Beacon II parts lists ..........................................45-46
Startup Checklist .............................................. 47-48
Wiring diagrams ...............................................49-51
Warranty information ............................................ 52
H-IM-67H March 2018 Part #25006401
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