Desa WMP20A Safety Information, Local Codes, Unpacking, Product Identification, Product Features

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SAFETY INFORMATION

Continued

12.Operating heater above elevations of 4,500 feet could cause pilot outage.

13.To prevent performance problems, do not use propane/LP fuel tank of less than 100 lbs. capacity.

14.Provide adequate clearances around air openings.

Local Codes

Install and use heater with care. Follow all lo- cal codes. In the absence of local codes, use the latest edition of National Fuel Gas Code, ANSI Z223.1/NFPA 54*.

*Available from:

American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

State of Massachusetts: The installation must be made by a licensed plumber or gas fitter in the Commonwealth of Mas- sachusetts.

Sellers of unvented propane or natural gas-fired supplemental room heaters shall provide to each purchaser a copy of 527 CMR 30 upon sale of the unit.

Vent-free gas products are prohibited for bedroom and bathroom installation in the Commonwealth of Massachusetts.

Unpacking

1.Remove heater from carton.

2.Remove all protective packaging applied to heater for shipment.

3.Check heater for any shipping damage. If heater is damaged, promptly inform dealer where you bought heater.

Product

Identification

Heater

Control Knob

 

Cabinet Ignitor Button

 

Grill Guard

Glass Panel

Front Panel

Figure 1 - Vent-Free Gas Heater

Product Features

Safety Device

This heater has a pilot with an Oxygen Deple- tion Sensing (ODS) safety shutoff system. The ODS/pilot is a required feature for vent-free room heaters. The ODS/pilot shuts off the heater if there is not enough fresh air.

Piezo Ignition System

This heater has a piezo ignitor. This system re- quires no matches, batteries or other sources to light heater.

Thermostatic Heat Control

Thermostat models have a thermostat sens- ing bulb and a control valve. This results in the greatest heater comfort. This can also result in lower gas bills.

www.desatech.com119344-01B

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Contents What to do if YOU Smell GAS Models GWN20TA, GWP20TA, GWN30TA, GWP30TA, WMN20a, WMP20aTable of Contents Safety InformationSafety Information Safety Information Product FeaturesLocal Codes UnpackingAir For Combustion Ventilation Providing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Installation Ventilation AIRCheck GAS Type Ventilation Air From Inside BuildingInstallation Installation ItemsLocating Heater This heater is designed to be mounted on a wallInstalling Heater to Wall 30,000 Btu/Hr Models 20,000 Btu/Hr ModelsAttaching To Wall Stud Method Attaching To Wall Anchor MethodInstalling Bottom Mounting Screws Mounting heater to floor With optional floor kitHeater Wall Mounting Base Feet to HeaterConnecting to GAS Supply Typical Inlet Pipe DiametersChecking GAS Connections Test Pressures Equal To or Less Than 1/2 Psig 3.5 kPaPressure Testing Heater Gas Connections Correct all leaks at onceFor Your Safety Read Before Lighting Operating HeaterLighting Instructions Do not try to light any applianceManual Lighting Procedure Operating HeaterTo Turn OFF GAS To Appliance Thermostat Control OperationPilot Flame Pattern Inspecting HeaterBurner Flame Pattern Cleaning Maintenance ODS/PILOT and BurnerBurner Pilot Air Inlet CabinetTroubleshooting Observed Problem Possible Cause RemedyTroubleshooting Observe minimum installa Slight smoke or odor duringBlocked Burner orificeGas leak. See Warning Statement aboveSpecifications Service HintsReplacement Parts Technical ServiceIllustrated Parts Breakdown Models WMN20A, WMP20A, GWN20TA, GWP20TA, GWN30TA and GWP30TAParts List NJF 8CAccessories Equipment Shutoff Valve GA5010Base Kit GA4550 Electronic ignitor Kit GA435 Not ShownParts Centrals Warranty Information Keep this WarrantyModel Serial No Date of Purchase Industrial Drive P.O. Box 119344-01 Rev. B
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