Thermador UCVRECIRC, Installation Manual

Page 5

INSTALL THE 

RECIRCULATION BOX

1.  Cut opening in cabinet base.

•  Size: 14 1/2” (368) x 15” (380) 
•  Orientation depends upon direction of exhaust.
•  Double-check that blower outlet and recirculation box inlet will align.

2.  Temporarily place recirculation box into opening in cabinet base.

•  Rotate back of box up slightly and insert exhaust end down into opening.
•  Mark location of exhaust opening in toe space, rear, or side of cabinet.

3.  Remove recirculation box from opening.

4.  Cut exhaust opening.

•  Size: 3 1/2” (89) x 14 1/4” (362)
•  This opening will be covered with decorative grille.

5.  Replace recirculation box into opening in cabinet base.

•  If necessary, attach a length 3 1/4” (83) x 14” (356) duct extension (not 

included) to extend from recirculation box outlet to decorative grille 
location.

•  Seal the duct connection(s) with aluminum tape to make them secure and 

air tight. Do not use duct tape.

•  Use 6 - #10 x .625” screws to secure recirculation box to cabinet base.

6.  Install blower.

•  See blower instructions.
•  Use 8” (203) round duct to connect blower exhaust to recirculation box 

inlet

•  Seal the duct connections with aluminum tape to make them secure and 

air tight. Do not use duct tape.

•  Drill 1/8” (3) pilot holes through top of recirculation box and attach legs 

to recirculation box with 4 - #8 x .375” screws.

7.  Install decorative grille.

•  Use screws provided.

8.  Remove polyfilm from filter.

•  Lift filter from slot.
•  Remove polyfilm.
•  Replace filter into slot.

CUSTOM-MADE 

DECORATIVE GRILLE

You can make your own decorative grille. Use the decorative grille in 
this kit as a template for the overall size and mounting hole locations. 
The grille opening pattern is up to you.
Equivalent area of grille slots for proper air flow = 18 in.

2

 min.

EXHAUST
THROUGH
CABINET 
SIDE

FILTER REPLACEMENT

It is recommended that you replace the recirculation filter every 
6 months. However, this may vary, depending upon the type and 
amount of cooking you do. Call customer service or your local 
distributor to order filter replacement Model UCVFILTER.

ALIGN BLOWER 

OUTLET WITH 

RECIRCULATION 

BOX INLET

METAL 8” ROUND DUCT 

(per local codes)

EXHAUST THROUGH 

CABINET FRONT (TOE KICK)

BLOWER

EXHAUST THROUGH 

CABINET SIDE

EXHAUST THROUGH 

CABINET BACK

Blower mounted 

to downdraft using 

mounting legs.

BLOWER

Blower mounted to 

framing in remote 

location - using 

mounting brackets.

MOUNTING

LEGS

Blower outlet and 

recirculation box 

inlet must align. 

(See below.)

OPTIONAL REMOTE BLOWER MOUNT

DIMENSIONS

EXHAUST
THROUGH
CABINET 
BACK

15”

(380)

14 1/2”

(368)

3 1/2" (89) x 14 1/4" (362)

EXHAUST OPENING

DECORATIVE

GRILLE

15"

(380)

14 1/2"

(368)

3 1/2" (89) x 14 1/4" (362)

EXHAUST OPENING

DECORATIVE

GRILLE

4 1/2”

(114)

16”

(406)

8”

(203)

6 1/2”

(165)

12 1/4”

(311)

17 1/2”

(445)

16”

(406)

14”

(356)

16”

(406)

15”

(380)

3 1/4”

(83)

3 3/4”

(95)

Measurements 

in inches (mm).

Measurements 

in inches (mm).