Desa CGB50P, CGB35P Changing Burner Orifice, Orifice Location 35,000 BTU/Hr Burner Shown

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SERVICE PROCEDURES

Continued

Changing Burner Orifice

1.Shut off gas supply to heater.

2.Remove lower front access panel on heater.

3.Disconnect burner tube from orifice holder (see Figure 24).

4.Remove orifice holder from burner (see Figure 24).

5.Use socket or open-end wrench to remove the old orifice from the orifice holder.

6.Clean and replace orifice, or replace with new orifice.

7.Turn on gas to heater and check for gas leaks. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once.

8.Replace lower front access panel.

32

Burner

Orifice

Burner

Tube

Orifice

Holder

Figure 24 - Orifice Location (35,000 BTU/Hr Burner Shown)

Figure 25 - Orifice

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualFor Your Safety Contents Safety Information Carbon monoxide poisoning may lead to deathSafety Information Product Identification Check GAS Type Local Codes Unpacking Product FeaturesInstallation Items Locating Heater Heater ClearancesVenting Heater Venting Heater Do not vent heater in any of the following ways see FigureVenting Heater Proper Size Vent Connecting to GAS Supply External Regulator with Vent Pointing DownGas Connection Pressure Testing Gas Supply Piping System Checking GAS ConnectionsInstalling Glass Panel Removing Lower Front Access PanelInserting Glass Panels Fresh AIR for Combustion and Ventilation Determining FRESH-AIR Flow for Heater Location Draft Hood Spillage TestVentilation Air from Outdoors Example 2 Locating Heater in Confined Closed Area Lighting Instructions For Your Safety Read Before LightingOperating Heater Viewing Pilot Manual Lighting Procedure To Turn OFF GAS to ApplianceShutting Off Heater Shutting Off Burner Only pilot stays litBurner Flame Pattern Inspecting Pilot and Burner FlamePilot Flame Pattern Correct Burner Flame Pattern Cleaning and Maintenance Trouble Shooting Observed Possible Problem Cause RemedyObserved Possible Remedy Problem Cause TROUBLE- ShootingStat bulb satisfied Gas leak. See Warning Statement at topService Procedures Removing Control Valve and Burner TubeRemoving Burner Changing Burner Orifice Orifice Location 35,000 BTU/Hr Burner ShownTechnical Service Service Hints35,000 BTU/Hr ModelParts Not Under Warranty Ordering Replacement Parts CentralsParts Under Warranty Accessories Valve GA5010Illustrated Parts List QTY Cabinet Assembly 100352 Warranty Information International