Desa CTB3924NT, RL24NR, CSG3924NR, VRL24PR Thermostat Control Operation, Manual Lighting Procedure

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OPERATING HEATER (THERMOSTAT-CONTROLLED MODELS)

Thermostat Control

Manual Lighting Procedure

OPERATING HEATER (REMOTE-READY MODELS)

For Your Safety Read Before Lighting

Lighting Instructions

19

OPERATING HEATER

Continued

THERMOSTAT CONTROL

OPERATION

The thermostat control knob can be set to any comfort level between HI and LO. The thermostat will gradually modulate the heat output and flame height from higher to lower settings, or pilot, in order to maintain the comfort level you select. The ideal comfort setting will vary by household depending upon the amount of space to be heated, the output of the central heating system, etc.

Note: Selecting the HI setting with the control knob will cause the burner to remain fully on, without modulating down in most cases.

MANUAL LIGHTING PROCEDURE

1.Follow steps 1 through 5 under Lighting Instructions, page 18.

2.Depress control knob and light pilot with match.

3.Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. Now follow steps 8 and 9 under Lighting Instructions, page 18.

REMOTE-READY MODELS

FOR YOUR SAFETY

READ BEFORE LIGHTING

WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing prop- erty damage, personal 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 de- partment.

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 techni- cian 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 service 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

WARNING:

•If fireplace has glass doors, never operate this heater with glass doors closed. If you operate heater with doors closed, heat buildup inside fire- place will cause glass to burst. Also if fireplace opening has vents at the bottom, you must open the vents before operating heater.

•You must operate this heater with a fireplace screen in place. Make sure fireplace screen is closed before running heater.

NOTICE: During initial operation of new heater, burn- ing logs will give off a paper-burning smell. Open damper or window to vent smell. This will only last a few hours.

Note: Home owners generally prefer to operate their heater with the chimney damper closed. This will put all the heat into the room. However, there may be times you will desire the full flames of the HI heat setting but will find the heat output excessive. You can open the chimney damper (if you have one) fully or partially to release some of the heat.

WARNING: Damper handle will be hot if heater has been running.

1.STOP! Read the safety information in column 1.

2.Make sure equipment shutoff valve is fully open.

3.Set switch in OFF position.

WARNING: Burner will come on automatically within one minute when the remote selector switch is in the ON position after the pilot is lit.

4.Press in and turn control knobs clockwise to the OFF position.

5.Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Fol- low “B” in the safety information, column 1. If you don’t smell gas, go to the next step.

6.Press in and turn control knob counterclockwise to the PILOT position. Press in control knob for five (5) seconds (see Figure 32, page 20).

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

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110021-01C

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualSafety Information Table of ContentsSafety Information Unpacking Optional Remote Control AccessoriesProduct Identification Local CodesAIR for Combustion and Ventilation Product FeaturesDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationVentilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Installation and Clearances for VENT-FREE Operation InstallationCheck GAS Type See Between 8 Minimum Noncombustible Material ClearancesDetermining Minimum Mantel Clearance Determining Minimum Mantel Clearance When Using a HoodMantel Clearances Floor ClearancesRemote-Ready Models Only Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Assembly Installation Items NeededAttaching Extension Plates to Base Assembly 30 Model Only Connecting to GAS SupplyExternal Regulator With Vent Pointing Down Pressure Testing Heater Gas Connections Pressure Testing gas Supply Piping systemChecking GAS Connections Installing Log #1 Ember Bed Model CSG3924NR Shown Installing LogsInstalling Log #2 Right and Log #3 Left Model VRL30NR Shown Lighting Instructions Attaching Grate to Base AssemblyOperating Heater Adding Lava RockShutting Off Heater To Turn OFF GAS to ApplianceShutting Off Burners Only pilot stays lit REMOTE-READY Models For Your Safety Read Before Lighting Manual Lighting ProcedureThermostat Control Operation Control Knob Rear Burner Ghrcta Series Operation Optional Remote OperationThermostat Control Operation Ghrc Series OperationPilot Flame Pattern Inspecting BurnersBurner Flame Patterns Cleaning Burner Injector Holders and Pilot AIR Inlet Holes Cleaning MaintenanceLogs Observed Problem Possible Cause Remedy TroubleshootingRefer to Air for Combustion and Venti Gas leak. See Warning statement Important Do not crimp capillary Optional Positioning of Thermostat Sensing BulbTechnical Service SpecificationsWiring Diagram Service HintsFor more Visit www Com Illustrated Parts BreakdownTHERMOSTAT-CONTROLLED VRL24NT, VRL24PT VRL30NT, VRL30PT THERMOSTAT-CONTROLLED Parts ListCSG3924NR, CSG3924PR CTB3924NR, CTB3924PR REMOTE-READY VRL24NR, VRL24PR VRL30NR, VRL30PRREMOTE-READY Accessories Replacement PartsOwners Registration Form Postage Required 110021-01C Not a UPC

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.

Lastly, the CTB3924NT model offers the best in technology and features. It includes a built-in air purification system that not only heats but also improves indoor air quality. This model is equipped with Wi-Fi connectivity, allowing users to control their heating remotely via a smartphone app. Its smart technology integrates with home automation systems, enhancing convenience and user experience.

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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