Installation

Continued

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 14. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and heater. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into heater controls. If sediment trap is not installed or is installed wrong, heater may not run properly.

CHECKING GAS CONNECTIONS

WARNING:Testallgaspiping and connections, internal and external to unit, 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 detec- tion fluid to all joints. Bubbles forming show a leak. Correct all leaks at once

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

CAUTION: Make sure exter- nal regulator has been installed between propane/LP supply and heater.SeeguidelinesunderCon- necting to Gas Supply, page 13.

CSA Design-

Propane/LP

Certified Equipment

From External

Shutoff Valve With

Regulator (11"

1/8" NPT Tap*

W.C.** to 14" W.C.

 

Pressure)

Approved

Natural

From Gas Meter

Flexible

(5" W.C.** to

Gas Hose (if

10.5" W.C.

allowed by

local codes)

Pressure)

 

3" Minimum

 

Cap Pipe Tee

 

Nipple Joint

Gas

Sediment Trap

Control

 

Figure 14 - Gas Connection

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

Accessories, page 34.

** Minimum inlet pressure for purpose of input adjustment.

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 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 located on or near gas meter for natural gas or using compressed air.

4. Check all joints of gas supply piping system. Apply noncorrosive leak detection fluid to gas joints. Bubbles forming show a leak.

5. Correct all leaks at once.

6. Reconnect heater and equipment shutoff valve to gas supply. Check reconnected fit- tings for leaks.

14

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111161-01H

Page 14
Image 14
Desa CHL3924NR installation manual Checking GAS Connections, Propane/LP, Natural

CHL3924NR specifications

Desa CHL3924NR is an innovative and versatile heating solution designed to meet the demands of modern living. This unit is particularly favored for its combination of efficiency, performance, and advanced technology, making it an ideal choice for homeowners looking for effective heating options.

One of the standout features of the Desa CHL3924NR is its impressive heating capacity. With a powerful design, it can deliver substantial warmth to medium to large spaces while maintaining a user-friendly operation. The unit boasts a range of heating settings, allowing users to customize the temperature according to their preferences and comfort. This flexibility not only enhances user experience but also optimizes energy consumption, contributing to lower utility bills.

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Safety features are paramount in the design of the CHL3924NR, ensuring peace of mind during operation. The unit is equipped with safety shut-off mechanisms, preventing overheating and potential hazards.

In conclusion, the Desa CHL3924NR stands out as a reliable, efficient, and stylish heating solution, perfect for contemporary homes. Its combination of advanced technology, user-friendly features, energy efficiency, and safety make it an excellent choice for anyone looking to enhance their heating experience. Whether for a cozy night in or providing warmth during colder months, the Desa CHL3924NR delivers exceptional performance that meets the needs of today’s consumers.