Desa EFS33NR, EFS33NRA, EFS33PR, EFS33PRA VSGF33NR, VSGF33NRA, VSGF33PR, VSGF33PRA

INSTALLATION

Built-In Fireplace Installation (Cont.) Installing Gas Piping to Fireplace Location

11

INSTALLATION

Continued

NOTICE: Surface temperatures of adjacent walls and mantels become hot during operation. Walls and mantels above the firebox may become hot to the touch. If installed properly, these temperatures meet the requirement of the national product standard. Follow all minimum clearances shown in this manual.

Installation Items Needed

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

• external regulator for propane/LP unit only (supplied by installer)
• piping (check local codes)
•	sealant (resistant to propane/LP gas)
•	equipment shutoff valve *

Note:

All Vertical mea- surements are from top of fireplace opening to bottom of mantel shelf.

Minimum Non-

Combustible

Material

10"

8"

6"

2 1/2"

13" 16"

Mantel

Shelf

19" 21"

• test gauge connection *
•	sediment trap (optional)
•	tee joint
•	pipe wrench
• approved flexible gas line with gas connector (if allowed by lo-
	cal codes) (not provided)

*A CSA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, pages 28 through 30.

For propane/LP units, the installer must supply an external regula- tor. 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 incoming gas pressure, heater regulator damage could occur. Install external regulator with the vent point- ing down as shown in Figure 17. Pointing the vent down protects it from freezing rain or sleet.

Figure 16 - Minimum Mantel Clearances for Built-In Installation

INSTALLING GAS PIPING TO FIREPLACE LOCATION

WARNING: This appliance requires a 1/2" NPT (National Pipe Thread) inlet connection to the pres- sure regulator.

WARNING: A qualified service person must con- nect fireplace to gas supply. Follow all local codes.

CAUTION: Never connect propane/LP fireplace directly to the propane/LP supply. This fireplace requires an external regulator (not supplied). Install the external regulator between the fireplace and pro- pane/LP supply.

WARNING: Never connect natural gas fireplace to private (non-utility) gas wells. This gas is commonly known as wellhead gas.

CAUTION: Use only new, black iron or steel pipe. Internally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of 1/2" diam- eter or greater to allow proper gas volume to fireplace. If pipe is too small, undue loss of pressure will occur.

External	Propane/LP
	Supply Tank
Regulator

Vent

Pointing

Down

Figure 17 - External Regulator on Propane/LP Supply Tank with Vent Pointing Down

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