Data Aire GUGU 070 - Page 5

10-2014 gForce User Manual ● 5
8.2.1 Menu A – ON/OFF................................................................................. 57
8.2.2 Menu B - Setpoints ............................................................................... 58
8.2.3 Menu C – Clock/Scheduler ..................................................................... 62
8.2.4 Menu D – Input/Output ......................................................................... 62
8.2.5 Menu E – Historical Data ....................................................................... 62
8.2.6 Menu F – Information ........................................................................... 65
8.2.7 Menu G – Network Config ..................................................................... 65
8.2.8 Menu H – Calibrate Sensors................................................................... 68
8.2.9 Menu I – Manual Control ....................................................................... 71
8.2.10 Menu J – Factory Settings .................................................................. 75
8.2.11 Menu K – Alarms & Limits .................................................................. 88
8.2.12 Menu L – Configure I/O ..................................................................... 99
8.2.13 Zone Master ...................................................................................... 99
8.3 Secondary Heat Exchangers ..................................................................................99
9. Control Logic .................................................................................................. 100
9.1 Fan Control Logic ............................................................................................... 100
9.1.1 Fan Speed Modulation to Rack Temperature (Mod to Rack): ................. 100
9.1.2 Fan Speed Modulation Proportional to Cooling Demand (Mod to Comp): 101
9.1.3 Fan Speed Modulation to Return Air (RA) Temperature (Mod to RetT): .. 101
9.1.4 Fan Speed Modulation to Constant Static Pressure (Air Pressure): ......... 101
9.1.5 Fan Speed Modulation based on BMS (BMS Speed): ............................. 101
9.1.6 Constant Fan Speed (Const Speed): ..................................................... 102
9.2 Compressor ....................................................................................................... 102
9.2.1 Return Air Temperature Control Mode .................................................. 102
9.2.2 Discharge Air Temperature Control Mode ............................................. 107
9.3 Safeties and Alarms ........................................................................................... 110
9.4 Dehumidification Mode ....................................................................................... 112
9.4.1 Relative Humidity Control Mode ........................................................... 113
9.4.2 Dewpoint Control Mode ....................................................................... 115
10. REGULAR MAINTENANCE ITEMS................................................................... 118
10.1 Air Filters .......................................................................................................... 118
10.2 Fuses ................................................................................................................ 118
10.3 Electric Reheat .................................................................................................. 119
10.4 Humidifier ......................................................................................................... 119
10.4.1 Humidifier Canisters ......................................................................... 119
10.5 Refrigerant Filter Drier ........................................................................................ 119
10.6 Current Sensing Relay ........................................................................................ 120
10.7 Plug Fans .......................................................................................................... 122
10.7.1 Electronically Commutated Motors .................................................... 122
10.7.2 Testing ........................................................................................... 124
11. RECOMMENDED LINE SIZING ....................................................................... 125
11.1 Hot Gas Lines – Single Circuit Units (Up To 200 Equivalent Feet (61 m)) ................ 125
11.2 Hot Gas Lines – Dual Circuit Units (Up To 200 Equivalent Feet (61 m)) ................... 125