Desa CBT30NT, CBT30PT Mounting Heater to Floor Optional, Connecting to GAS Supply

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INSTALLATION

Continued

MOUNTING HEATER TO FLOOR (OPTIONAL)

Mounting Base Feet to Heater

1.Lay heater cabinet on its back on a table with the heater bottom overhanging the table edge.

2.Align holes in base foot with mounting holes on bottom of cabinet (see Figure 13).

3.Secure base foot to heater using sheet metal screws.

4.Repeat for other side.

Mounting Base Feet to Floor (Where required by local code)

1.Remove front cover (see Removing Front Panel of Heater, page 9).

2.Position heater with base feet in desired loca- tion. Mark holes for drilling. Remove heater with base.

3.For carpeted floors, make a small cut with a sharp knife at marked locations prior to drill- ing. If mounting base to a wood floor, drill 1/8" (3.2 mm) diameter hole, 3/4" (1.9 cm) deep. (Do not use anchors in wood floors).

If mounting base to a concrete floor, drill with 1/4" (6.4 mm) diameter concrete drill bit, 13/8" (3.5 cm) into floor. Insert anchors completely into holes.

4.Reposition heater with base feet over holes. Secure base to floor with wood screws. See Figure 13.

Wood

Screw

Base Foot

Sheet Metal Screw

Figure 13 - Installing Base Feet

CONNECTING TO GAS SUPPLY

WARNING: This appliance requires a 3/8" NPT (National Pipe Thread) inlet connection to the pressure regulator.

WARNING: A qualified ser- vice person must connect heater to gas supply. Follow all local codes.

WARNING: For natural gas, never connect heater to private (non-utility) gas wells. This gas is commonly known as wellhead gas.

IMPORTANT: For natural gas, check gas line pressure before connecting heater to gas line. Gas line pressure must be no greater than 10.5 inches of water. If gas line pressure is higher, heater regula- tor damage could occur.

CAUTION: For propane/LP gas, never connect heater di- rectly to the propane/LP supply. This heater requires an external regulator (not supplied). Install theexternalregulatorbetweenthe heater and propane/LP supply.

For propane/LP gas, the installer must supply an external regulator. 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 pres- sure, heater regulator damage could occur. Install the external regulator with the vent pointing down as shown in Figure 14, page 12. Pointing the vent down protects it from freezing rain or sleet.

107882-01M

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Contents
What to do if YOU Smell GAS Table of Contents Safety Information Ignition System Product FeaturesSafety Device Local CodesUnusually Tight Construction AIR for Combustion VentilationProviding Adequate Ventilation Following are excerpts from National FuelVentilation Air From Inside Building Determining FRESH-AIR Flow for Heater LocationVentilation AIR Determining if You Have a Confined or Unconfined Space Ventilation Air From Outdoors AIR for Combustion Ventilation Installation Installation Items Check GAS TypeThermostat Sensing Bulb Locating HeaterMarking Screw Locations Installing Heater to WallMounting Bracket Removing Front Panel Of HeaterPlacing Heater On Mounting Bracket Installing Bottom Mounting ScrewsAttaching To Wall Stud Method Attaching To Wall Anchor MethodMounting Base Feet to Heater Connecting to GAS SupplyMounting Base Feet to Floor Where required by local code Mounting Heater to Floor OptionalClogged heater valves Dealer. See Accessories,Be upstream from heater see Figure Appliance Apply pipe joint sealant lightly to male NPTTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Checking GAS ConnectionsTest Pressures In Excess Of 1/2 Psig 3.5 kPa Lighting Instructions For Your Safety Read Before LightingOperating Heater Thermostat Control Operation Manual Lighting ProcedureInspecting Heater To Turn OFF GAS To ApplianceBurner Pilot AIR Inlet Soft bristled brush to cleanBurner Flame Pattern ODS/PILOT and BurnerWhen Gas Pressure Is Too Low Cleaning MaintenanceService Hints Technical ServiceContact local propane/LP gas company TroubleshootingObserved Problem Possible Cause Remedy Control knob is not in pilot positionDelayed ignition of burners Manifold pressure is too low Goes out when control knob is Control knob not pressedProblem could be caused by AssemblyInitial operation Processes Hours of operation Noise when burner is litWhen heated, vapors from Turn heater off when using Slight smoke or odor duringGas leak. See Warning Specifications Service Publications Replacement PartsIllustrated Parts Breakdown Front Panel 107954-01 107955-01 Parts List111435-01 Electronic Ignitor 097159-04 Piezo Ignitor Floor Mounting KIT GA4550 AccessoriesEquipment Shutoff Valve GA5010 FAN Kits GA3250TParts Central Keep this Warranty Warranty Information
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