Roberts Gorden Caribe CGTH-30 用户手册

29

After the heater has been properly suspended in 
accordance with the preceding headings of this sec-
tion, proceed to install the venting as described 
below. Be sure to observe the General Venting 
Guidelines on Page 14, Section 4.5.

Table 2: Components

1. Using a saw, cut an appropriate size clearance hole in 

the roof to accommodate the vertical run of vent pipe 
and the vent termination (minimum 5" [125 mm]).

2. Install the vent adapter (P/N 90506012) and 

secure with #8 x 3/8" sheet metal screws as shown 
on Page 28, Figure 26.

3.  Measure the distance to the center of the hole 

from the vent adapter. Note this dimension here 
_________.  If the concentric vent has to be cut, 
use the following guidelines:

A. Subtract 1.5" (38 mm) to allow for the elbow 

and both joints.

B. Separate the 3" (80 mm)  and the 5" (125 

mm) vent by pulling the 3" (80 mm) vent out 
from the end with the internal silicone gasket. 
Remove the internal spring from the non-sili-
cone gasket end of the 5" (125 mm) vent.

C. Always cut the 3" (80 mm) and 5" (125 mm) 

vent separately to avoid damage.

D. Always cut from the non-silicone gasket end 

and deburr thoroughly. 

4.  Install a 4-7" EPDM storm collar (P/N 90506015) 

following the instruction below:

A. Slide storm collar down over lower section of 

the vertical vent. Water can be used as a 
lubricant. Apply silicone sealant on under-
side of flange. Turning back flexible flange 
makes this simple.

B. Press pipe flashing into contours of roof 

panel configuration. If there is a sharp angle 
in the panel, a blunt tool can be used to 
press the flashing into place.

C. Lower roof terminal (P/N 90506008) through 

the 5" (125 mm) hole. From the inside ensure 
the vent is square. Secure the vent clamp to 
the inside of the roof. See Figure 28.

D. Apply silicone sealant between base and 

roof. Drill and fasten flashing to surface. Use 
a blunt tool to press base into sharp corners 
of valleys while drilling; and against to insert 
rivet or screw.

E. Follow the sequence: drill two holes on oppo-

site sides of aluminum base through sheet. 

90506001

   Elbow 90°

90506003

   Concentric Flue   10" (254 mm)

90506004

   Concentric Flue   20" (500 mm)

90506005

   Concentric Flue   39" (1000 mm)

90506008

   Roof Terminal   50.5" (1283 mm)

90506012

   Burner/Vent Adapter 

B

30” (762 mm)

minimum

above roof

Vent

Clamp

Storm

Collar

90506003

90506004

90506005

90506012 Burner

A

Use Table 2 to select lengths for A & B

Roof

90506001

Roof

Terminal

90506008

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