Figure 9: 2-Foot Deco Grille; Figure 10: Barrier Shield; Figure 11: Protective Grille - Roberts Gorden Corayvac CRV-B Series Installation, Operation & Service Manual

CRV-S I , O
ERIES NSTALLATION PERATION AND
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings, elbows, tees and crosses.
2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream from
where the combustion chamber and the tube connect.

FIGURE 9: 2-FOOT DECO GRILLE

A
C
B D

FIGURE 10: BARRIER SHIELD

A
B
D
C

FIGURE 11: PROTECTIVE GRILLE

A
C
B
D
8 of 85
S M
ERVICE ANUAL
Model A
CRV-B-2 4
CRV-B-4 4
CRV-B-6 4
CRV-B-8 4
CRV-B-9 4
CRV-B-10 4
CRV-B-12 4
CRV-B-12A 4
Model A
CRV-B-2 4
CRV-B-4 4
CRV-B-6 4
CRV-B-8 4
CRV-B-9
CRV-B-10
CRV-B-12
CRV-B-12A
Model A
CRV-B-2 4
CRV-B-4 4
CRV-B-6 4
CRV-B-8 4
CRV-B-9 4
CRV-B-10 4
CRV-B-12 4
CRV-B-12A 4
(inches)
B C D
12 48 12
12 48 12
12 48 12
12 48 12
18 56 18
18 56 18
18 56 18
18 56 18
(inches)
B C D
12 12 12
12 12 12
12 12 12
12 12 12
- UNAPPROVED -
- UNAPPROVED -
- UNAPPROVED -
- UNAPPROVED -
(inches)
B C D
20 48 20
20 48 20
20 48 20
20 48 20
36 60 36
36 60 36
36 60 36
36 60 36
(centimeters)
A B C
11 31 122
11 31 122
11 31 122
11 31 122
11 46 143
11 46 143
11 46 143
11 46 143
(centimeters)
A B C
11 31 31
11 31 31
11 31 31
11 31 31
- UNAPPROVED -
- UNAPPROVED -
- UNAPPROVED -
- UNAPPROVED -
(centimeters)
A B C
11 51 122
11 51 122
11 51 122
11 51 122
11 92 153
11 92 153
11 92 153
11 92 153
D
31
31
31
31
46
46
46
46
D
31
31
31
31
D
51
51
51
51
92
92
92
92