Desa GVC35NA, GVC50NA, GVC65NA Checking GAS Connections, Pressure Testing Gas Supply Piping System

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INSTALLING HEATER

Continued

CHECKING GAS CONNECTIONS

WARNING

Test all gas piping and connections for leaks after install- ing or servicing. Correct all leaks at once.

WARNING

Never use an open flame to check for a leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once.

Pressure Testing Gas Supply Piping System

Test Pressures In Excess of 1/2 PSIG

1.Disconnect heater and its individual manual shutoff valve from gas supply pipe. Pressures in excess of 1/2 PSIG will damage heater regulator.

2.Cap off open end of gas pipe where manual shutoff valve was connected.

3.Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter.

4.Check all joints of gas supply piping system. Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

5.Correct all leaks at once.

Test Pressures Equal To or Less Than 1/2 PSIG

1.Close manual shutoff valve (see Figure 8).

2.Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter.

3.Check all joints from propane supply tank to manual shutoff valve. Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

4.Correct all leaks at once.

Pressure Testing Heater Gas Connections

1.Open manual shutoff valve (see Figure 8).

2.Open main gas valve located on or near gas meter.

3.Make sure control knob of heater is in the OFF position.

4.Check all joints from manual shutoff valve to control valve on heater. Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Light heater (see Operating Heater, pages 18 through 20). Check the rest of the internal joints for leaks.

7.Turn off heater (see To Turn Off Gas to Appliance, page 20).

PO On Position

Off Position

Figure 8 - Manual Shutoff Valve

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Contents For Your Safety OWNER’S Operation and Installation ManualWhat to do if YOU Smell GAS Contents Carbon monoxide poisoning may lead to death Safety InformationSafety Information Product Identification Installation Items Local Codes Unpacking Product FeaturesCheck GAS Type Heater Clearances Locating HeaterVenting Heater Do not vent heater in any of the following ways see Figure Venting HeaterVenting Heater Proper Size Vent Connecting Heater to Utility Gas Line Connecting to GAS SupplyGas Connection Checking GAS Connections Pressure Testing Gas Supply Piping SystemFresh AIR for Combustion and Ventilation Draft Hood Spillage Test Determining FRESH-AIR Flow for Heater LocationVentilation Air from Outdoors Example 2 Locating Heater in Confined Closed Area Operating Heater For Your Safety Read Before LightingLighting Instructions Viewing Pilot Blower Operation Manual Lighting ProcedureTo Turn OFF GAS to Appliance Shutting Off HeaterPilot Flame Pattern Inspecting Pilot and Burner FlameBurner Flame Pattern Correct Burner Flame Pattern Cleaning and Maintenance Observed Possible Problem Cause Remedy Trouble ShootingTROUBLE- Shooting Cleaning and MainteLighting Instructions Top Ing statement atRemoving Control Valve and Burner Tube Service ProceduresRemoving Burner Diagram Blower WiringChanging Burner Orifice Service Hints Accessories Technical Service35,000 BTU/Hr 50,000 BTU/Hr ModelParts Under Warranty Ordering Replacement Parts CentralsParts Not Under Warranty Cabinet Assembly Illustrated Parts ListBurner Assembly Parts List Limited Warranty Vanguard Vented Natural GAS Heaters Warranty Information

GVC35NA, GVC50NA, GVC65NA specifications

Desa GVC series heaters, including models GVC35NA, GVC65NA, and GVC50NA, are prominent products in the realm of gas-fired heating solutions. These heaters are designed for residential and light commercial applications, providing a reliable heat source with high efficiency.

The GVC35NA has a heating capacity of 35,000 BTU, making it an excellent choice for smaller spaces. It features a compact design, allowing for easy installation in various settings. The advanced vent-free technology incorporated into the GVC35NA enables it to operate without the need for external venting, maximizing efficiency and eliminating heat loss. Additionally, this model includes an oxygen depletion sensor (ODS), which ensures safety by shutting off the unit if oxygen levels drop below a certain threshold.

Moving on to the GVC50NA, this model provides a mid-range heating capacity of 50,000 BTU. This unit is ideal for medium-sized rooms and offers the same vent-free technology as the GVC35NA. The GVC50NA's unique design also enhances airflow, ensuring a consistent and comfortable temperature throughout the space. Like its counterpart, it is equipped with the ODS for added safety, making it suitable for use in bedrooms and other enclosed areas.

The GVC65NA represents the upper end of the GVC series, boasting a robust heating capacity of 65,000 BTU. Designed for larger spaces, it features multiple heat settings, allowing users to customize their heating experience based on specific needs. The unit’s sleek design not only provides aesthetic value but also incorporates a built-in blower option, enhancing air circulation and ensuring even heat distribution. Safety remains a priority with the GVC65NA, which includes an ODS as well as a built-in thermostat for precise temperature control.

All models in the GVC series come equipped with simple control mechanisms, ensuring ease of use. They also utilize glowing ceramic elements for efficient and effective heating. Furthermore, the stylish exterior and compact design of these heaters make them an attractive addition to any room.

In summary, the Desa GVC35NA, GVC65NA, and GVC50NA heaters provide a comprehensive range of heating solutions, combining efficiency, safety, and ease of use. Their vent-free operation, built-in safety features, and aesthetic designs make them ideal choices for a variety of heating needs. Whether for small, medium, or large spaces, there is a GVC model to meet specific requirements, ensuring comfort and warmth for users.
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