Desa WMN20A Mounting heater to floor With optional floor kit, Installing Bottom Mounting Screws

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INSTALLATION

Continued

Installing Bottom Mounting Screws

1.Locate two bottom mounting holes. These holes are near bottom on back panel of heater (see Figure 12).

2.Mark screw locations on wall.

3.Remove heater from mounting bracket.

4.If installing bottom mounting screws into hollow or solid wall, install wall anchors. Follow steps 1 through 4 under Attaching To Wall Anchor Method, page 10.

If installing bottom mounting screw into wall stud, drill holes at marked locations using 9/64" drill bit.

5.Replace heater onto mounting bracket.

6.Place spacers between bottom mounting holes and wall anchor or drilled hole.

7.Hold spacer in place with one hand. With other hand, insert mounting screw through bottom mounting hole and spacer. Place tip of screw in opening of wall anchor or drilled hole.

8.Tighten both screws until heater is firmly secured to wall. Do not over tighten.

Note: Do not replace front panel at this time. Replace front panel after making gas connections and checking for leaks (see pages 12 through 14).

Front View

Heater

Wall

 

 

Spacer

Side View

Figure 12 - Installing Bottom Mounting

Screws

Mounting heater to floor With optional floor kit

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.

Wood

Screw

Base Foot

Sheet Metal Screw

Figure 13 - Installing Base Feet

Mounting Base Feet to Floor

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

2.Position heater with base feet in desired location. 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 drilling. If mounting base to a wood floor, drill 1/8" diameter hole, 3/4" deep. (Do not use anchors in wood floors).

If mounting base to a concrete floor, drill with 1/4" diameter concrete drill bit, 13/8" 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.

119344-01B

www.desatech.com

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Contents Models GWN20TA, GWP20TA, GWN30TA, GWP30TA, WMN20a, WMP20a What to do if YOU Smell GASSafety Information Table of ContentsSafety Information Unpacking Safety InformationProduct Features Local CodesConfined and Unconfined Space Air For Combustion VentilationProviding Adequate Ventilation Unusually Tight ConstructionDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation Air From Inside Building InstallationVentilation AIR Check GAS TypeThis heater is designed to be mounted on a wall InstallationInstallation Items Locating HeaterInstalling Heater to Wall Attaching To Wall Anchor Method 30,000 Btu/Hr Models20,000 Btu/Hr Models Attaching To Wall Stud MethodMounting Base Feet to Heater Installing Bottom Mounting ScrewsMounting heater to floor With optional floor kit Heater WallTypical Inlet Pipe Diameters Connecting to GAS SupplyTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Checking GAS ConnectionsCorrect all leaks at once Pressure Testing Heater Gas ConnectionsDo not try to light any appliance For Your Safety Read Before LightingOperating Heater Lighting InstructionsThermostat Control Operation Manual Lighting ProcedureOperating Heater To Turn OFF GAS To ApplianceBurner Flame Pattern Inspecting HeaterPilot Flame Pattern Cabinet Cleaning MaintenanceODS/PILOT and Burner Burner Pilot Air InletObserved Problem Possible Cause Remedy TroubleshootingTroubleshooting Burner orifice Observe minimum installaSlight smoke or odor during BlockedStatement above Gas leak. See WarningTechnical Service SpecificationsService Hints Replacement PartsModels WMN20A, WMP20A, GWN20TA, GWP20TA, GWN30TA and GWP30TA Illustrated Parts BreakdownNJF 8C Parts ListElectronic ignitor Kit GA435 Not Shown AccessoriesEquipment Shutoff Valve GA5010 Base Kit GA4550Parts Centrals Industrial Drive P.O. Box 119344-01 Rev. B Warranty InformationKeep this Warranty Model Serial No Date of Purchase
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