14

INSTALLATION

Checking Gas Connections

INSTALLATION

Continued

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 heater. See guidelines under Connecting to Gas Supply, page 12.

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 sys-

 

tem. Pressures in excess of 1/2 psig will damage heater 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

Pressure Testing Heater Gas Connections

1.Open equipment shutoff valve (see Figure 17).

2.Open main gas valve located on or near gas meter for natural gas or open propane/LP supply tank valve.

3.Make sure control knobs of heater are in the OFF position.

4.Check all joints from equipment shutoff valve to thermostat gas valve (Thermostat-Controlled Models) or control valve (Remote- Ready Models) (see Figure 18 or 19). Apply a noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.

5.Correct all leaks at once.

6.Light heater (see Operating Heater, pages 17 through 21). Check all other internal joints for leaks.

7.Turn off heater (see To Turn Off Gas to Appliance, page 18 [Ther- mostat-Controlled Models] or page 20 [Remote-Ready Models]).

Open

Equipment

Shutoff

Valve

Closed

Figure 17 - Equipment Shutoff Valve

Equipment Shutoff Valve

 

located on or near gas meter for natural gas, or using com-

 

pressed air.

4.

Check all joints of gas supply piping system. Apply a noncorrosive

 

leak detection fluid to all joints. Bubbles forming show a leak.

5.

Correct all leaks at once.

6.

Reconnect heater and equipment shutoff valve to gas supply.

 

Check reconnected fittings for leaks.

Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)

1. Close equipment shutoff valve (see Figure 17).

Propane/LP Supply Tank

Thermostat Gas Valve or

Control Valve Location

2.

Pressurize supply piping system by either opening propane/LP sup-

 

ply tank valve for propane/LP gas or opening main gas valve lo-

 

cated on or near gas meter for natural gas, or using compressed air.

3.

Check all joints from gas meter for natural or propane/LP sup-

 

ply to equipment shutoff valve (see Figure 18 or 19). Apply a

 

noncorrosive leak detection fluid to all joints. Bubbles form-

 

ing show a leak.

4.

Correct all leaks at once.

Figure 18 - Checking Gas Joints (Propane/LP Gas Only)

Equipment Shutoff Valve

Thermostat Gas Valve or

Control Valve Location

Gas Meter

Figure 19 - Checking Gas Joints (Natural Gas Only)

For..com

110021-01C

Page 13 Page 15
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Image 14
Desa VRL30PR Checking GAS Connections, Pressure Testing gas Supply Piping system, Pressure Testing Heater Gas Connections
Page 13 Page 15

CSG3924NR, CTB3924NR, VRL24PR, VRL30NR, RL24NR specifications

Desa VRL30NR, CSG3924PR, RL24NR, CSG3924PT, and CTB3924NT are advanced heating units developed by Desa, a brand recognized for its innovation in heating technologies. These models cater to a variety of consumer needs, offering efficient, reliable, and cost-effective heating solutions for residential and commercial applications.

The Desa VRL30NR is a powerful model known for its exceptional performance and efficiency. It features an intuitive digital thermostat for precise temperature control, ensuring optimal comfort. The unit is designed with an advanced airflow system that maximizes heat distribution throughout the space, making it ideal for larger rooms or open-concept spaces. The VRL30NR is also equipped with safety features such as an automatic shut-off mechanism that activates in case of overheating or tip-over, providing added peace of mind.

In contrast, the CSG3924PR and CSG3924PT models offer versatility with a sleek design and robust functionality. Both models come with an adjustable flame height feature, allowing users to customize their heating experience based on preference and room size. These units are designed for easy installation and operation, often incorporating wall-mounted options to save floor space. The incorporation of energy-efficient technologies ensures that they consume less power while still delivering powerful heating output, making them an environmentally friendly choice.

The RL24NR model stands out with its compact design, making it suitable for smaller spaces. This model prioritizes aesthetics without compromising on performance. It is equipped with a quiet operation mode, making it perfect for bedrooms or offices where noise levels need to be minimal. The RL24NR also boasts a quick heat-up time, providing instant warmth when needed.

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Overall, each of these Desa models provides reliable heating solutions tailored to diverse needs and spaces. Their combined focus on efficiency, safety, and user-friendly features makes them standout options in the competitive heating market.
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