Vent-a-Hood PRH18M30SS Installation Instruction
Page 4
L157 0311A
Installation Details Continued
4) Remove the hood from its packaging and place the back of the hood on the floor or countertop in front of the wall
where it will hang.
5) Remove the cardboard filter retaining clip. Sharply push the front of the filter (knob end) into the hood. Raise the back
of the filter from the filter rest and remove the filter through the hood opening. Repeat for each filter.
Warning: Make sure power is off and locked at the service disconnecting
means on the service panel during installation.
6) Hoods are shipped from the factory with the junction box mounted for the M1200 double blower configuration. Remove
the junction box cover. If the M600 single blower will be used, relocate the junction box and ground strap to the offset
location. Install an appropriate 1/2” UL listed electrical wire clamp through the electrical opening on top of the hood.
Install electrical wiring from the service panel to the hood location. Consult the connection diagrams (on previous
page) for further details on electrical placement.
Model
Volts
Amps*
Hz
CFM
SP@0.0"
CFM
SP@0.1"
CFM
SP@0.25"
CFM
SP@0.5"
CFM
SP@0.75"
Minimum Round
Duct Size
M600 Single
115
5.0
60
630
625
615
600
580
6" (28 in.
2
)
M1200 Dual
115
10.0
60
1035
1015
1000
955
915
10" (79 in.
2
)
* Add 0.5 amp for each halogen light. 2 lights: 30" - 41", 3 lights: 42" - 53", 4 lights: 54"-66"
7) For M600 single blower installation, skip to Step 8. Install the 10" transition (VP566, included) to the top of the hood
with the screws provided. Seal the base of the transition to the hood with duct tape.
8) If using a duct cover, carefully remove the knockouts from the top four corners of the hood. Remove the duct cover
from its packaging and remove the mounting screws from the base of the duct cover. Place the duct cover on the top
of the hood and secure it through the knockout openings using the mounting screws previously removed.
9) Lift the hood (and duct cover assembly) to the location on the wall where it will be installed. Lightly mark the wall with
a short, horizontal mark along the bottom edge of the hood. Remove the hood (and duct cover assembly) from the
wall.
10) On the back side of the hood, measure the distance between the bottom edge of the hood and the top edge of the
wood mounting strip. Measure this distance above the horizontal mark made in Step 9 and lightly mark the wall with
a level, horizontal line. Measure where the center (left to right) of the hood will be and mark the upper, horizontal line
on the wall with a short, vertical centerline.
11) Remove the screws inside the top of the back of the hood that retain the wood strip that is recessed in the mounting
channel. Remove the wood mounting strip from the back of the hood and place the top edge of the strip on the upper,
level, horizontal line on the wall. Referencing the vertical centerline from Step 10, place the mounting strip on the
wall so it is centered (left to right) in the space where the hood will be located. Drill pilot holes in the strip to prevent
splitting. Using proper hardware, attach the mounting strip to the two outermost available wall studs. For hoods wider
than 36", attach to additional wall studs.
12) Hang the hood on the mounting strip by first aligning the ducting (M1200 blower only) and then aligning the channel
at the top of the back of the hood over the wood mounting strip on the wall. While holding the hood in place, mark
locations on the mounting strip through the two mounting holes in the channel at the top of the hood. Remove the
hood and drill 3/32" pilot holes at the center of the marks in the wood strip to prevent splitting.
13) Insert the electrical wire from the service panel 6" past the electrical wire clamp on the junction box. Tighten the wire
clamp. While securing the slack in the wire, lift the hood up to the wall and hang the hood on the mounting strip, taking
care to properly align the duct connection (M1200 blower). Secure the hood to the mounting strip by installing the
screws (previously removed from the strip in Step 11) into the pilot holes drilled in Step 12.