AAON Orion VCCX2 User Manual

93
VCCX2 Controller Technical Guide
VCCX2 CONTROLLER TREND LOGS
Item Description Log Abbreviation
(Unit)
Date Date (Day Month)
Time Time (24 Hr.)
Mode of Operation Mode (Enumerated)*
HVAC Mode HVAC (Enumerated)*
Space Temperature Space (ºF)
Indoor Humidity InRH (%)
Mode Cooling Setpoint CSP (ºF)
Mode Heating Setpoint HSP (ºF)
Supply Air Temperature SAT (ºF)
Supply Air Setpoint SATSP (ºF)
Coil (Saturation) Temp Setpoint CoilSP (ºF)
Return Air Temperature RAT (ºF)
Return Air Humidity RA RH (%)
Outdoor Air Temperature OAT (ºF)
Outdoor Air Humidity OA RH (%)
Outdoor Air Wetbulb OA WB (ºF)
Outdoor Air Dewpoint OA DP (ºF)
Carbon Dioxide CO2 (PPM)
Outdoor Airow CFM OACFM (kCFM)
Supply Airow CFM SACFM (kCFM)
Return Airow CFM RACFM (kCFM)
Exhaust Airow CFM EXCFM (kCFM)
Building Pressure BldPr (WG”)
Duct Static Pressure Static (WG”)
MHGRV Valve Position ReHeat
MODGAS Valve Position ModGas
Main Fan Speed VFD Signal FanVFD (%)
Economizer Position Econo (%)
Modulating Heat Signal ModHeat (%)
Building Pres. Relief VFD Signal Relief (%)
Modulating Cooling Signal ModCool (%)
Sensor Alarms AlrmGrp1 (Bit String)*
Mechanical Alarms AlrmGrp2 (Bit String)*
Temp Limit & Sump Drain Alarms AlrmGrp3 (Bit String)*
Missing Module Alarms AlrmGrp4 (Bit String)*
Refrigeration Module Alarms AlrmGrp5 (Bit String)*
Binary Inputs Status Bin IN (Bit String)*
Relays Status of VCCX2 & EM1 Main Rly (Bit String)*
Relays Status of 12 Relay
Expansion Module
Exp Rly (Bit String)*
* Bit String and Enumeration Value information and interpretation
is explained in the paragraphs and tables at the end of this section.
RSM Trend Logs
There can be as many as four RSMV or RSMDs on a unit, or
six RSMZs, with each RSM controlling up to two compressors
and condensers. These can be referred to as modules 1, 2, 3,
and 4 or as modules A, B, C, and D. Various items in the trend
logs can refer to dierent modules and dierent compressor/
condensers on each module. For instance, 1A1 Stat refers to the
status of Module 1/Compressor 1. 2B2 would refer to Module 2/
Compressor 2. 4D1 would be Module 4/Compressor 1. Likewise,
1SuctTmp1 refers to the suction (saturation) temperature of
Module 1/Compressor 1, while 3SucTmp2 refers to the suction
(saturation) temperature of Module 3/Compressor 2. Several
trend log items will use this pattern to identify the status of values
related to certain modules and the compressors or condensers on
those modules. See Table 6, this page for RSMV / RSMD trend
logs and Table 7, page 94 for RSMZ trend logs.
RSMV / RSMD MODULE TREND LOGS
(TYPICAL OF 4 RSM MODULES)
Item Description Log Abbreviation (Unit)
Compressor A1 Status 1A1Stat (Bit String)*
Compressor A2 Status 1A2Stat (Bit String)*
Compressor A1 Modulating
Position
1Comp1 (%)
Compressor A2 Modulating
Position
1Comp2 (%)
Condenser A1 Modulating
Position
1Cond1 (%)
Condenser A2 Modulating
Position
1Cond2 (%)
A1 Expansion Valve 1EXV1 (%)
A2 Expansion Valve 1EXV2 (%)
Condenser A1 Expansion Valve 1EXV3 (%)
Condenser A2 Expansion Valve 1EXV4 (%)
A1 Head Pressure 1HeadPr1 (PSI)
A2 Head Pressure 1HeadPr2 (PSI)
A1 Suction Pressure 1SuctPr1 (PSI)
A2 Suction Pressure 1SuctPr2 (PSI)
A1 Saturation Temperature 1SuctTmp1 (ºF)
A2 Saturation Temperature 1SuctTmp2 (ºF)
A1 Suction Line Temperature 1CoilTmp1 (ºF)
A2 Suction Line Temperature 1CoilTmp2 (ºF)
A1 Condenser Suction Temp 1CoilTmp3 (ºF)
A2 Condenser Suction Temp
1CoilTmp4 (ºF)
A1 Superheat
1SprHeat1 (ºF)
A2 Superheat
1SprHeat2 (ºF)
Table 5: VCCX2 Controller Trend Logs
Table 6: RSMV/RSMD Module Trend Logs
SEQUENCE OF OPERATIONS
VCCX2 Controller Trend Logs

AAON Orion VCCX2 Specifications

General

Brand	AAON
Model	Orion VCCX2
Category	Controller
Language	English