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1. Remove Hood access panel and make sure the circuit breaker is in the ON position.
2. Turn at least one (1) oven switch ON. The VFD display should show the POWER and RUN
LED lamps lit up, and a numeric value should appear in the window display.
The VFD controller is adjusted at the factory to the values displayed in the chart below.
All AVI Hoods are functionally tested at the factory. Operation is verified, and adjust-
ments are made to ensure proper operation. However, field conditions are sometimes different
than factory conditions. These variables make it necessary to have an authorized service techni-
cian verify operation and make field adjustments if needed. The following items must be checked
and verified to meet the specifications and requirements stated in this manual prior to the hood be-
ing commissioned:
Correct fan rotation
Balanced make-up air
The Initial Start-Up Checklist must be completed at time of installation, signed by the Cus-
tomer and returned to XLT Ovens to initiate Warranty Policy.
Function
Store
VFD Controller Display
Window Display
If you require either more or less air flow, follow these steps:
Variable Frequency Drive Adjustments
HOOD INITIAL START-UP
Top Middle Bottom
Single
X
20 Hz
25 Hz
30 Hz
X
20 Hz
25 Hz
30 Hz
X
35 Hz
40 Hz
45 Hz
X
X
35 Hz
40 Hz
45 Hz
X
20 Hz
25 Hz
30 Hz
X
30 Hz
35 Hz
40 Hz
X
40 Hz
45 Hz
50 Hz
X
X
30 Hz
35 Hz
40 Hz
X
X
40 Hz
45 Hz
50 Hz
X
X
40 Hz
45 Hz
50 Hz
X
X
X
45 Hz
50 Hz
55 Hz
VFD Controller Settings
Switches On
1832 & 2440
3240, 3255 & 3270 3855 & 3870
Fire Suppression
60 Hz
DO NOT CHANGE
Triple
Double
