Brochure

43
Blowers
1. Distance from cooking surface:
For optimal performance, the distance from the cooking
surface to the bottom of the range hood should be between
24" to 30", unless otherwise noted. DO NOT install a Broan
Elite range hood less than 24" above cooking surface.
To maintain hood performance at heights greater than the
recommended range, use the
following guidelines:
• For every 3" increase in
installation height, add
100 CFM to the minimum
exhaust requirement and/or
a minimum of 3" to the hood/
liner width (may require going
to the next hood width).
2. Range hood width:
The hood should never be less
than the width of the cooktop.
3. Required blower CFM based on cooktop BTU output.
• For gas cooktops UNDER 60,000 BTUs or electric,
choose a blower with a minimum of 100 CFM per lineal
foot of your cooktop width. For example, a 36" wide cook-
top requires a blower with a minimum of 300 CFM.
• High heat cooking or aromatic foods may require additional
CFM. Always check with the range manufacturer. NOTE:
Increasing capture area by 3" on each side is also a
recommended way to address this issue.
• As a means to estimate the approximate CFM requirement
for gas cooktops OVER 60,000 BTUs, choose a blower
with 1 CFM per 100 BTU of cooktop output. To quickly
calculate this number, add the BTU output from all
burners and drop the last two zeros. For example, if the
total BTU output of the cooktop burners is 65,000 BTUs,
choose a blower with at least 650 CFM.
4. Additional CFM needs for a Grill or Griddle:
If your cooktop has a grill or griddle, ADD 200 CFM to
your estimated CFM needs as calculated in step 3. For
example, if your cooktop BTU output requires a 650 CFM
blower, add 200 CFM for a total of 850 CFM.
Installation Example:
A consumer purchases a cooktop with these specifications:
• Four burner, 36" cooktop
• Burner output is 60,000 BTU
• The cooktop features a grill.
• Installation requirements call for the range hood to be
33" over the range (3" above recommended maximum
height)
Blower CFM Option 1: (Using the guidelines above)
The blower must equal a minimum of 600 CFM (60000
BTU) + 200 CFM (for Grill requirement) + 100 CFM
(for 3" of installation height) = 900 CFM
Blower CFM Option 2: (Using the guidelines above)
Select a range hood that is a minimum of 3" WIDER than
the cooktop, a minimum 600 CFM (60000
BTU) + 200
CFM (for Grill requirement) = 800 CFM
Internal, In-Line and Exterior blower specifications table
Installation and blower selection guidelines
MODEL MOUNTING CFM HVI VOLTS AMPS ROUGH-IN DUCT
†
INLET/OUTLET DIRECTION MOTOR TYPE
P5 Internal 460V/500H Y 120 1.8 3
1
⁄4 " x 10" — V or H —
P8 Internal 850V/900H Y 120 3.4 3
1
⁄4 " x 14" — V or H —
331H
++
Exterior 600 Y 120 2.3 10" Round — — Single-Speed
332H
++
Exterior 900 Y 120 5.8 10" Round — — Single-Speed
335
++
Exterior 1200 Y 120 3.0 10" Round — — Single-Speed
336
+v
Exterior 1500 Y 120 3.8 10" Round — — Single-Speed
HLB3
++
^
In-Line 280/260* Y 120 2.6 — 8" or 10"/8"Round V or H Single-Speed
HLB6
++
In-Line 600/600* Y 120 2.9 — 10"/10" Round V or H Single-Speed
HLB9
++
In-Line 800/700* Y 120 3.0 — 10"/10" Round V or H Single-Speed
HLB11
++
In-Line 1100/1000* Y 120 5.0 — 10"/10" Round V or H Single-Speed
++
Model 332KR Rough-In Kit required for installation with hood series E60000, E64000, RM60000 and RMIP
(Model 421 10" In-Line damper recommended for Exterior blowers).
* Straight CFM/Right angled CFM (rated with transitions provided).
†
Transitions provided with unit.
^
Not recommended for use with grill applications.