Roberts Gorden CGTH-50 Flue Collar and Adapter, Horizontal Venting Configurations, Part Number

CGTH INSTALLATION, OPERATION AND SERVICE MANUAL

4.Install the vent adapter (P/N 90506012) and secure with #8 x 3/8” sheet metal screws as shown

in Figure 26.

5.If the concentric vent has to be cut (see note on Page 28), follow instructions A-E (see Figure 27). If the concentric vent does not have to be cut, see note on Page 28. Follow instructions A & F below (See Figure 27).

A.Install the horizontal vent terminal (P/N 90506011) ensure that the air holes intake hole are facing down. Install the flashing plates with the hardware supplied.

(See Figure 27.)

FIGURE 26: Flue Collar and Adapter

(3X) Screw

P/N 94118106

Adapter

P/N 90506012

B. Measure from the end of the adapter to the end of the vent terminal, dimension C, Page 27, Figure 25. Note the dimension here,

__________.

C. 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 gas- ket. Remove the internal spring from the non-silicone gasket end of the 5” (125 mm) vent.

D.Add 3.5” (90 mm) to the dimension noted in step B, this is to allow for the internal joint of the vent. Cut both the 3” (80 mm) and 5” (125 mm) vent to this length and de-burr the ends. Always cut from the non-silicone gas- ket end.

E.Re-assemble the 3” (80 mm) and 5” (125

mm)vent with the internal spacer at the sili- cone gasket end only.

FIGURE 27: Horizontal Venting Configurations

	HORIZONTAL
	90506003	90506011
	90506004
	90506005	90506013
90506012
Heater	A

Table 1: Components

Part Number	Description
90506003	Concentric Flue	10” (254 mm)
90506004	Concentric Flue	20” (500 mm)
90506005	Concentric Flue	39” (1000 mm)
90506011	Storm Collar	27.5” (690 mm)
90506012	Burner/Vent Adapter
90506013	Wall Plate

F. Push vent terminal away from heater. Insert the cut vent in between the adapter and the vent terminal. Starting at the adapter end, push the plain end of the vent into the sili- cone gaskets. The connection will fit firmly together. If undue force is required to assem- ble the parts, first check the cut length for burrs, second apply warm soapy water to the silicone gaskets.

Note: The gasket construction of this venting is designed to make a permanent airtight con- nection, additional silicone sealant and securing screws are not to be used.

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