Desa VTD-18P-BTB, VTD-24P-PDG Checking GAS Connections, Pressure Testing gas Supply Piping system

Page 9

INSTALLATION Connnecting to Gas Supply (cont.)

Checking Gas Connections Pressure Testing Gas Supply Piping System

9

INSTALLATION

Continued

Installation must include an equipment shutoff valve, union, and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from appliance (see Figure 9).

IMPORTANT: Install equipment shutoff valve in an accessible location. The equipment shutoff valve is for turning on or shutting off the gas to the appliance.

Apply pipe joint sealant lightly to male NPT threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged appliance valves.

WARNING: Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.

We recommend that you install a sediment trap in supply line as shown in Figure 9, depending on your model. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and appliance. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps mois- ture and contaminants. This keeps them from going into appliance controls. If sediment trap is not installed or is installed wrong, ap- pliance may not run properly.

CAUTION: Avoid damage to gas control. Hold gas control with wrench when connecting it to gas piping and/or fittings.

Installation must include an equipment shutoff valve, union, and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from appliance (see Figure 9).

IMPORTANT: Install equipment shutoff valve in an accessible location. The equipment shutoff valve is for turning on or shutting off the gas to the appliance.

Apply pipe joint sealant lightly to male NPT threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged appliance valves.

CSA Design-Certified Equipment

PROPANE/LP

Shutoff Valve With 1/8" NPT Tap*

- From External

 

Approved Flexible

Regulator

Gas Hose (if allowed

(11" W.C.**

by local codes)

to 14" W.C.

 

Pressure)

3" Minimum

NATURAL

 

- From Gas

 

Meter

 

(5" W.C.**

 

to 10.5" W.C.

Gas Control

Pressure)

 

Pipe Cap

Tee

Nipple

Joint

Sediment Trap

Figure 9 - Gas Connection

*Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 22.

**Minimum inlet pressure for purpose of input adjustment.

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping and connections for leaks after installing or servicing. Correct all leaks at once.

WARNING: Never use an open flame to check for a leak. Apply a noncorrosive leak detection fluid to all joints. Bubbles forming show a leak. Correct all leaks at once.

CAUTION: Make sure external regulator has been installed between propane/LP supply and appliance. See guidelines under Connecting to Gas Supply, page 8.

External Regulator

Propane/LP

Supply Tank

Vent Pointing Down

Figure 8 - External Regulator With Vent Pointing Down

Pressure Testing gas Supply Piping system

Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)

1.Disconnect appliance with its appliance main gas valve (control valve) and equipment shutoff valve from gas supply piping system. Pressures in excess of 1/2 psig will damage appliance regulator.

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

3.Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas, or using compressed air.

For more information, visit www.desatech.com

111826-02F

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Contents Ansi Z21.60-2003 CSA What to do if YOU Smell GASSafety Information Table of ContentsProduct Identification Local CodesProduct Features Optional Remote Control AccessoriesUnpacking AIR for Combustion and VentilationVentilation AIR Determining FRESH-AIR Flow for Appliance LocationVentilation Air from Outdoors Installation Installing Appliance Assembly Connecting to GAS SupplyInstallation Items Needed Checking GAS Connections Pressure Testing gas Supply Piping systemValve Pressure Testing Appliance Gas ConnectionsFor Your Safety Read Before Lighting Operating ApplianceLighting Instructions Manual Lighting Procedure Remote Control OperationTo Turn OFF GAS to Appliance Operating Appliance Inspecting Burner Cleaning and MaintenancePilot Flame Pattern Burner Flame PatternObserved Problem Possible Cause Remedy TroubleshootingRefer to Air for Combustion and Venti Observed Problem Possible Cause VTD-18N-PDG/VTD-18N-BTB SpecificationsReplacement Parts Wiring DiagramService Hints Technical ServiceThis page Intentionally Left Blank Illustrated Parts Breakdown Illustrated Parts BreakdownParts List Accessories Owners Registration Form Postage Required 111826-02F Warranty Information

VTD-24P-BTB, VTD-18P-BTB, VTD-24P-PDG, VTD-18N-BTB, VTD-18N-PDG specifications

Desa VTD-18N-BTB, VTD-18P-BTB, VTD-24P-PDG, VTD-24P-BTB, and VTD-18N-PDG are notable offerings in the realm of heaters, designed to provide efficient and effective heating solutions for various environments. Each model boasts a range of features and technologies that cater to different needs and preferences, promoting comfort and convenience.

Starting with the VTD-18N-BTB and VTD-18P-BTB, these models are engineered with a focus on reliability and performance. They come equipped with advanced heating technology that ensures rapid warmth distribution in residential or commercial spaces. Featuring adjustable heat settings, users can customize the temperature according to their comfort levels. The BTB designation indicates that these models possess a robust build quality, designed to withstand heavy use, while maintaining aesthetic appeal.

The VTD-24P-PDG and VTD-24P-BTB are designed for larger areas, delivering an increased heat output to accommodate more substantial spaces. These models incorporate energy-efficient technology, which aids in reducing overall energy consumption while providing consistent heat. Moreover, the programmable thermostat feature available in these units allows users to set specific heating schedules, significantly enhancing energy efficiency and convenience.

The VTD-18N-PDG stands out with its unique design and advanced features. This model combines a sleek and modern aesthetic with high functionality, making it suitable for contemporary interiors. It utilizes a dual-fuel technology option, providing the flexibility to operate on either gas or electric power, thus enhancing versatility in use. This feature is particularly beneficial for areas with fluctuating energy availability.

In terms of safety, all models incorporate essential safety mechanisms, including overheating protection and tip-over switches, ensuring peace of mind for users. The combination of portability and performance allows for seamless placement in various settings, from home living rooms to workshops and garages.

Overall, Desa's VTD series reflects a commitment to quality and innovation, promoting efficient heating solutions that cater to varying space and user requirements. These models are ideal for users seeking dependable heating options without compromising on style, functionality, or safety.
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