Desa GN30T, GWP30T Operating Heater, Manual Control Models For Your Safety Read Before Lighting

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OPERATING HEATER

MANUAL CONTROL MODELS

FOR YOUR SAFETY

READ BEFORE LIGHTING

WARNING: If you do not fol- low these instructions exactly, a fire or explosion may result causing property damage, per- sonal injury or loss of life.

A.This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly.

B.BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS

•Do not try to light any appliance.

•Do not touch any electric switch; do not use any phone in your building.

•Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

•If you cannot reach your gas supplier, call the fire department.

C.Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in or turn by hand, don’t try to repair it, call a qualified service tech- nician or gas supplier. Force or attempted repair may result in a fire or explosion.

D.Do not use this appliance if any part has been under water. Immediately call a qualified ser- vice technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.

LIGHTING

INSTRUCTIONS

1.STOP! Read the safety information above.

2.Make sure equipment shutoff valve is fully open.

3.Press in and turn control knob clockwise to the OFF position.

4.Wait five (5) minutes to clear out any gas. Then smell for gas around heater and near the floor. If you smell gas, STOP! Follow “B” in the safety information above. If you don’t smell gas, go to the next step.

5.Press in control knob and turn counter-

clockwise to the PILOT position. Keep control knob pressed in for five (5) seconds (see Figure 19).

Note: You may be running this heater for the first time after hooking up to gas sup- ply. If so, the control knob may need to be pressed in for 30 seconds or more. This will allow air to bleed from the gas system.

•If control knob does not pop up when re- leased, contact a qualified service person or gas supplier for repairs.

6.With control knob pressed in, push down and release ignitor button. This will light pilot. The pilot is attached to the front of burner. If needed, keep pressing ignitor button until pilot lights.

Note: If pilot does not stay lit, refer to Troubleshooting, pages 20 through 23. Also contact a qualified service person or gas supplier for repairs. Until repairs are made, light pilot with match. To light pilot with match, see Manual Lighting Procedure, page 16.

7.Keep control knob pressed in for 30 sec- onds after lighting pilot. After 30 seconds, release control knob.

Note: If pilot goes out, repeat steps 3 through 7.

8.Press in and turn control knob counter-

clockwise to the HIGH position. Set control knob to desired heat setting.

CAUTION: Do not try to ad- just heating levels by using the equipment shutoff valve.

Ignitor

 

Control

Button

OFF

Knob

IGNITOR

Figure 19 - Control Knob In The OFF

Position

Thermocouple

Ignitor Electrode

Pilot Burner

Figure 20 - Pilot (actual pilot may vary)

107884-01H

www.desatech.com

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Contents What to do if YOU Smell GAS Table of Contents Safety Information Unpacking Product FeaturesLocal Codes Product IdentificationConfined and Unconfined Space AIR for Combustion VentilationProviding Adequate Ventilation Unusually Tight ConstructionDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationVentilation Air From Inside Building InstallationVentilation AIR Check GAS TypeLocating Heater Installation ItemsInstalling Heater to Wall 20,000 Btu/Hr Models Attaching To Wall Anchor MethodPlacing Heater On Mounting Bracket Mounting Base Feet to Heater Installing Bottom Mounting ScrewsMounting Base Feet to Floor Where required by local code Mounting Heater to Floor with Optional Floor KITTypical Inlet Pipe Diameters Connecting to GAS SupplyChecking GAS Connections Natural GasPropane/LP Open equipment shutoff valve see , Pressure Testing Heater Gas ConnectionsManual Control Models For Your Safety Read Before Lighting Operating HeaterLighting Instructions Shutting Off Burner Only pilot stays lit Manual Lighting ProcedureTo Turn OFF GAS To Appliance Shutting Off HeaterThermostat Control Operation Inpecting Heater Pilot Flame PatternBurner Flame Pattern Cabinet Cleaning MaintenanceODS/PILOT and Burner Burner Pilot AIR InletObserved Problem Possible Cause Remedy TroubleshootingReplace burner orifice See Cleaning and Mainte Statement above Gas leak. See WarningSpecifications GN30, GN30T WMN20, GWN20GP30, GP30T Parts Under Warranty Service HintsTechnical Service Service Publications Replacement PartsIllustrated Parts Breakdown NJF 8C Parts ListGWN20T, GWP20T GWN30T, GWP30T Parts List Base KIT GA4550 AccessoriesEquipment Shutoff Valve GA5010 FAN Kits GA3250TParts Centrals Warranty Information Keep this WarrantyLimited Warranty VENT-FREE Residential GAS Heaters

GP30, GWN20T, GWN30T, GWN20, GWP20 specifications

Desa GWP20, GWP30T, GP30T, GN30T, and GP30 are advanced water heater models that stand out in the market for their efficiency, innovative technology, and user-friendly features. Each model is designed to cater to different consumer needs, offering reliable hot water solutions for residential and commercial applications.

The Desa GWP20 is a compact and efficient water heater that operates on a 20-gallon tank. Ideal for smaller households, it boasts fast heating capabilities and a durable construction that ensures longevity. Its user-friendly control panel allows for easy temperature adjustments, and its energy-saving mode helps reduce utility costs.

Moving up in capacity, the GWP30T features a 30-gallon tank, making it suitable for medium-sized households. This model incorporates a high-efficiency burner that maximizes heat output while minimizing gas consumption. With an upgraded insulation system, the GWP30T retains heat for longer periods, enhancing energy efficiency. The built-in diagnostics monitor performance, ensuring consistent operation and alerting users to any potential issues.

The GP30T is another 30-gallon model that emphasizes flexible installation options. It can be configured for various venting systems, making it adaptable for different home layouts. Its robust safety features, such as an automatic shut-off system, provide peace of mind for users. Additionally, the GP30T is equipped with a flame sensor for improved safety during operation.

For those seeking an efficient gas-powered unit, the GN30T delivers exceptional performance with a 30-gallon capacity. This model is designed to withstand the demands of larger households, featuring rapid recovery rates to provide a continuous supply of hot water. It utilizes advanced combustion technology that ensures efficient gas usage, striking the perfect balance between performance and energy costs.

Finally, the GP30 is a versatile water heater designed to meet diverse consumer needs. With a focus on sustainability, this model incorporates eco-friendly materials and technologies. The GP30 is packed with features that enhance its usability, such as customizable temperature settings, easy-to-read indicators, and a straightforward installation process.

In summary, Desa's GWP20, GWP30T, GP30T, GN30T, and GP30 water heaters are engineered for efficiency and reliability. Each model offers unique features tailored to specific user needs, from compact designs for smaller spaces to powerful systems for larger families. With an emphasis on modern technology and safety, Desa continues to be a leader in the water heating market.
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