2
Fan Motor Wiring Recommendations . . . . . . . . . . 137
Motor Nameplate Data . . . . . . . . . . . . . . . . . . . . . . . 140
Fan Motor Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
VFD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
VFD with Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Shunt Trip Installation, ACI Part No. 135046 . . . . . 149
Shunt Trip Installation, ACI Part No. 135728 or
135728A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
VFD Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 152
• START-UP BY CHANGING PARAMETERS
VFD Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
ABB E-Clipse Bypass Operator Control . . . . . . . . 154
• BYPASS CONTROL KEYPAD AND CONTROL BOARD
• PROGRAMMABLE RELAY CONTACT OUTPUTS
Electric Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
• CONNECT POWER AND CONTROL WIRES
Gas Furnace Identification . . . . . . . . . . . . . . . . . . . 180
Gas-Fired Duct Furnaces . . . . . . . . . . . . . . . . . . . . 180
• FURNACE COMPONENT IDENTIFICATION
• OPERATING AND SAFETY CONTROLS
• GAS SUPPLY, PIPING, AND CONNECTIONS
Gas-Fired Rack System Furnaces . . . . . . . . . . . . 187
• FURNACE COMPONENT IDENTIFICATION
• OPERATING AND SAFETY CONTROLS
• UNIT LOCATION AND CLEARANCES
• GAS SUPPLY, PIPING, AND CONNECTIONS
Energy Recovery Ventilation (ERV) Sections . . . . 190
Marine Lights and Convenience Outlets . . . . . . . 196
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
• AIRFOIL AND FORWARD-CURVED FANS
• TWO, FOUR, OR SIX-FAN ARRAY DIRECT DRIVE
• HUMIDIFIER INSTALLATION CHECKLIST
• INTEGRAL FACE AND BYPASS COIL START-UP
• GAS-FIRED FURNACES (DUCT AND RACK SYSTEM)
Energy Recovery Wheel . . . . . . . . . . . . . . . . . . . . 202
• ZEROING THE MINIHELIC GAGE BEFORE START UP
• SEGMENT INSTALLATION AND REPLACEMENT
• WHEEL DRIVE MOTOR AND PULLEY
• SOLID BELT REPLACEMENT (FIG. 189)
• ANTIFREEZE METHODS OF COIL PROTECTION
• AIR-DRYING METHOD OF COIL PROTECTION
Coil Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
• REMOVAL OF SINGLE HEIGHT COILS (SIZES 03-36)
• REMOVAL OF STACKED COILS (SIZES 40 TO 110)
Changing Coil Hand . . . . . . . . . . . . . . . . . . . . . . . . 210
• CHILLED WATER AND HOT WATER COILS
• STEAM INNER DISTRIBUTING TUBE COILS
Minihelic Gage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Fan Shaft Bearing Removal . . . . . . . . . . . . . . . . . 217
Fan and Shaft Removal . . . . . . . . . . . . . . . . . . . . . 254