Filter
Top Products
3
Model VSU Make-Up Air
®
Table of Contents
General Safety Information ....................1
Receiving, Handling and Storage ...............2
Product Overview ............................4
Subassembly Overview:
Filter Section / Vertical Mounting Stand ..........4
Optional Service Platform .....................4
Burner, Blower and Control Center Overview ......5
Burner Subassembly .......................6
Control Center ............................6
Dampers ...................................6
Installation
Concrete Slab ..............................7
Service and Access Clearance .................7
Clearance to Combustibles ....................7
Burner/Blower Section ........................7
Install Ductwork .............................7
Complete Installation .........................8
Optional Service Platform ..................8-9
Electrical Wiring ............................10
Direct Gas Piping ...........................11
Building Pressure Control, optional .............12
Start-Up
Checklist .................................13
Blower ................................14-15
Direct Gas .............................15-18
Operation
Optional VAV Units ..........................19
Optional Recirculating Units ..................20
Electrical ...............................20-21
Troubleshooting
Blower Does Not Operate ....................22
Motor Overamps ...........................23
Insufficient Airflow ..........................24
Too Much Airflow ...........................24
Excessive Noise or Vibration ..................25
Heater Does Not Operate (Pilot Ignition) ......26-28
Heater Does Not Operate (Direct Spark) ......29-30
Maintenance
Routine ...................................31
V-Belt Drives .............................31
Motors ..................................31
Wheels .................................31
Filters ..................................31
Bearings ................................32
Fall ......................................32
Start-Up ................................32
High Limit ...............................32
Gas Train ................................32
Reference
Typical Gas Train Layout ..................33-34
Control Center Layout .......................35
Maintenance Log ..................... Backcover
Warranty ............................Backcover