Accurex XRRS Series User Manual

Fire Ready Hood16
Once hood and fan (if external) is installed and powered,
navigate into the service menu on the user interface.
Navigation instructions can be found on pages 20-21.
Press the “Balance Exhaust Fan” button, and fan will
turn on and ramp to full speed.
Once fan is on, connect one end of manometer to
plenum pressure port (1/8 inch MNPT barb located near
grease filter) and take reading. Adjust the max speed as
necessary to match the pressure with the corresponding
value on the screen (or reference the table below based
on your hood size and configuration).
For example, for a 36 inch, non-NFPA 101 compliant,
external fan – top discharge, inline fan configuration
model, to obtain the designed 300 CFM, we need the
plenum pressure reading to be 0.25 in. wc.
Fan Calibration
NOTE
Integral fan – front recirculating models shouldn’t have
to be calibrated, as these require no added ductwork.
Fan calibration is necessary for integral fan – rear
discharge and external fan configurations (both inline
and fan by others).
NOTE
To avoid poor hood performance, it is important for
the hood to be balanced for the designed CFM. For
NFPA 101 compliant models, 500 designed CFM is
required.
Hood
Length
(in.)
NFPA 101
Compliance
Ventilation
External
Fan Type
Plenum Pressure
Reading for
Designed CFM
High
CFM
High
Percent of
Max CFM
Low
Percent of
Max CFM
Approximate
Low CFM
30
No
Integral Fan – Front Recirculating Not applicable .21 250 70%
60%
(Default)
214
Integral Fan – Rear Discharge Not applicable .27 250 50% 300
External Fan - Top Discharge Inline .13 250 100% 150
External Fan - Top Discharge Fan by Others .13 250 100% 150
Yes
Integral Fan - Rear Discharge Not applicable .67 500 80% 375
External Fan - Top Discharge Inline .34 500 100% 300
External Fan - Top Discharge Fan by Others .34 500 100% 300
36
No
Integral Fan – Front Recirculating Not applicable .28 300 80% 225
Integral Fan – Rear Discharge Not applicable .20 300 50% 360
External Fan - Top Discharge Inline .25 300 100% 180
External Fan - Top Discharge Fan by Others .25 300 100% 180
Yes
Integral Fan - Rear Discharge Not applicable .54 500 100% 300
External Fan - Top Discharge Inline .62 500 100% 300
External Fan - Top Discharge Fan by Others .62 500 100% 300
Once balancing is complete, press the back arrow button to navigate back to the previous screen.

Accurex XRRS Series Specifications

General

Brand	Accurex
Model	XRRS Series
Category	Ventilation Hood
Language	English