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VCCX2 Controller Technical Guide
WIRING .......................................................................................................................... 53
RSMV-HP Controller Inputs .................................................................................................................................. 53
RSMV-HP Controller Outputs................................................................................................................................ 54
RSMD Controller Inputs ........................................................................................................................................ 55
RSMD Controller Outputs ..................................................................................................................................... 56
RSMZ Controller Inputs ........................................................................................................................................ 57
RSMZ Controller Outputs ...................................................................................................................................... 58
Subcool Monitor Controller ................................................................................................................................... 59
MHGRV-X Controller ............................................................................................................................................. 60
MODGAS-X Controller .......................................................................................................................................... 61
MODGAS-XWR2 Controller .................................................................................................................................. 62
PREHEAT-X and PREHEAT-X-EXT Controller ..................................................................................................... 63
START
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UP AND COMMISSIONING ............................................................................... 64
Powering Up and Conguration ............................................................................................................................ 64
INPUTS AND OUTPUTS ................................................................................................ 65
VCCX2 Controller and EM1 Module Input/Output Maps ....................................................................................... 65
VCCX2 Controller Inputs ....................................................................................................................................... 66
VCCX2 Controller Outputs .................................................................................................................................... 67
VCC-X EM1 Expansion Module ............................................................................................................................ 68
E-BUS 12-Relay Expansion Module ..................................................................................................................... 69
SEQUENCE OF OPERATIONS ....................................................................................... 70
Supply Fan and Occupied/Unoccupied Operation ................................................................................................ 70
HVAC Modes of Operation .................................................................................................................................... 71
Economizer Operation .......................................................................................................................................... 73
Dehumidication Mode ......................................................................................................................................... 74
Reheat, Coil Suction, and Return Air Bypass Damper .......................................................................................... 75
Heating Mode ........................................................................................................................................................ 76
Ventilation Mode, Remote Contact Control, and Space Sensor Operation .......................................................... 77
IAQ Control, Morning Warm-Up and Cool-Down, and Single Zone VAV .............................................................. 79
Airow Monitoring, Pre-Heater, Low Ambient and Duct Static Press ................................................................... 81
Duct Static Setpoint Reset and Duct Static Pressure Control ............................................................................... 82
Building Pressure Control and Exhaust Duct Static Pressure Control .................................................................. 83
MUA, CAV/MUA, and Space Temperature Control ............................................................................................... 84
VAV w/SA Tempering, Air to Air Heat Pump and Standard Defrost ....................................................................... 85
Heat Pump Adaptive Defrost, WSHP, EXV and Head Pressure ........................................................................... 86
Evaporative Condenser, WSE, OA Lockouts and Temp Protection ...................................................................... 87
Alarm Detection and Sensor Failure Alarms ......................................................................................................... 89
Mechanical Failure and Failure Mode Alarms ....................................................................................................... 91
Title 24 Economizer Alarms .................................................................................................................................. 92
VCCX2 Controller Trend Logs .............................................................................................................................. 93
RSMV/RSMD/RSMZ Trend Logs and Trend Log Enumerated Values ................................................................. 94
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