Desa CGB3924PR Installing Heater Base Assembly, Connecting To Gas Supply, Installation, Continued

CGD3924PR, CGB3924PR and CGB3930PR

UNVENTED PROPANE/LP GAS LOG HEATER

INSTALLATION

Continued

INSTALLING HEATER BASE ASSEMBLY

CAUTION: Do not remove the metal data plates attached to the heater base assembly. The data plates contain important warranty information.

WARNING: You must secure this heater to fireplace floor. If not, heater will move when you adjust controls. Moving heater may cause a gas leak.

WARNING: If installing in a sunken fireplace, special care is needed. You must raise the fire- place floor to allow access to heater control panel. This will in- sure adequate air flow and guard against sooting. Raise fireplace floor with non-combustible mate- rial. Make sure material is secure.

CAUTION: Do not pick up heater base assembly by the burner. This could damage heater. Only handle base assem- bly by grates.

IMPORTANT: Make sure the heater burn- ers are level. If heater is not level, heater will not work properly.

Installation Items Needed

•hardware package (provided with heater)

•approved flexible gas hose (not provided) (if allowed by local codes)

•sealant resistant to propane/LP gas, not provided

•electric drill with 3/16" masonry drill bit

1.Apply pipe joint sealant lightly to male threads of the fitting to be threaded into gas regulator. Connect approved flex- ible gas hose to gas regulator of heater (see Figure 10).

2.Locate masonary screws in hardware package.

3.Position heater base assembly in fireplace.

4.Mark screw locations through holes in mounting flanges (see Figure 11). If in- stalling in a brick-bottom fireplace, mark screw locations in mortar joint of bricks.

5.Remove heater base from fireplace.

6.Drill holes at marked locations using 3/16" masonry drill bit.

7.Attach base assembly to fireplace floor using two masonry screws (in hardware package) (see Figure 11).

8.Connect to gas supply. See Connect- ing To Gas Supply.

Flexible Gas Hose (if allowed by local codes)

Fitting

Figure 10 - Attaching Flexible Gas Hose to Heater

Masonry

Screw

Mounting

Flanges

Figure 11 - Attaching Base Assembly to Fireplace Floor

CONNECTING TO GAS SUPPLY

NOTICE: A qualified service per- son must connect heater to gas supply. Follow all local codes.

CAUTION: Never connect heater directly to the propane supply. This heater requires an external regulator (not supplied). Install the external regulator be- tween the heater and propane supply.

Installation Items Needed

Before installing heater, make sure you have the items listed below.

•piping (check local codes)

•sealant (resistant to propane/LP gas)

•manual shutoff valve *

•test gauge connection *

•sediment trap

•tee joint

•pipe wrench

•two (2) 9-volt alkaline batteries (not in- cluded)

*An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Pur- chase the optional A.G.A. design-certified manual shutoff valve from your dealer. See Accessories, page 21.

The installer must supply an external regu- lator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11 and 14 inches of water. If you do not reduce incom- ing gas pressure, heater regulator damage could occur. Install external regulator with the vent pointing down as shown in Figure

12.Pointing the vent down protects it from freezing rain or sleet.

External Regulator

Propane

Supply Tank

Vent Pointing Down

Figure 12 - External Regulator With Vent Pointing Down

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