User guide

13
Model VSU Make-Up Air
®
Unit Model Number _______________________________
(e.g. VSU-H20)
Unit Serial Number _______________________________
(e.g. 10111000)
Start-Up Date _______________________________
Start-Up Personnel Name __________________________
Start-Up Company _______________________________
Phone Number _______________________________
Pre Start-Up Checklist – check boxes as items
are completed.
Check tightness of all factory wiring connections
Verify control wiring wire gauge
Hand-rotate blower to verify free rotation
Verify supply voltage to the main disconnect
Verify the supply gas pressure
Verify remote controls wiring
Check V-belt drive for proper alignment and
tension
Start-Up Blower Checklist – refer to Start-Up -
Blower section for further detail.
Check line voltage L1-L2 __________
L2-L3 __________
L1-L3 __________
Check blower rotation
Check for vibration
Supply fan RPM _________ RPM
Motor nameplate amps _________ Amps
Actual motor amps _________ Amps
Actual CFM delivered _________ CFM
Optional Accessories – refer to Start-Up - Blower,
Set-Up Optional Components, pg. 15 for further detail.
Heating Inlet Air Sensor
________ Actual Setting
Typical setting 60º-70ºF
Cooling Inlet Air Sensor
________ Actual Setting
Typical setting 75ºF
Building Freeze Protection
________ Actual Setting
Typical setting 5 minutes; 45ºF
Dirty Filter Gauge
________ Actual Setting
Typical setting varies
Start-Up Direct Gas (Pilot Ignition) – refer to
Start-Up - Direct Gas section for further detail.
Check supply gas pressure
________ Maximum
________ Minimum
________ Actual
Check Pilot Gas Pressure
________ Actual Setting
Typical 3.0 in. wg
Set optional High Gas Pressure Switch
________ Actual Setting
Typical 8.0 in. wg
Set optional Low Gas Pressure Switch
________ Actual Setting
Typical 3.0 in. wg
Set Burner Pressure Differential
________ Actual Setting
Typical 0.65 in. wg
Set the maximum firing rate
________ temp rise
Set the minimum firing rate
________ check
Set the unit’s operating temperature
________ ºF
Start-Up Direct Gas (Direct Spark) – refer to
Start-Up - Direct Gas section for further detail.
Check supply gas pressure
________ Maximum
________ Minimum
________ Actual
Set optional High Gas Pressure Switch
________ Actual Setting
Typical 8.0 in. wg.
Set optional Low Gas Pressure Switch
________ Actual Setting
Typical 3.0 in. wg.
Set Burner Pressure Differential
________ Actual Setting
Typical 0.65 in. wg
Set the maximum firing rate
________ temp rise
Set the minimum firing rate
________ check
Set the unit’s operating temperature
________ ºF
Start-Up - Checklist