Desa CBT30NT, CBT30PT Inspecting Heater, To Turn OFF GAS To Appliance, Manual Lighting Procedure

Page 15

OPERATING HEATER

Continued

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Heater

1.Turn control knob clockwise to the OFF position.

2.Turn off all electric power to the appliance if service is to be performed.

Shutting Off Burner Only (pilot stays lit)

Turn control knob clockwise

to the

PILOT position.

 

THERMOSTAT CONTROL

OPERATION

The thermostatic control used on these models differs from standard thermostats. Standard thermostats simply turn on and off the burner. The thermostat used on this heater senses the room temperature. At times the room may exceed the set temperature. If so, the burner will shut off. The burner will cycle back on when room temperature drops below the set temperature. The control knob can be set to any heat level between 1 and 5. This adjusts the amount of gas flow to the burner that increases or decreases the burner flame height. Note: The thermostat sensing bulb measures the temperature of air near the heater cabinet. This may not always agree with room tem- perature (depending on housing construction, installation location, room size, open air tem- peratures, etc.) Frequent use of your heater will let you determine your own comfort levels.

MANUAL LIGHTING

PROCEDURE

1.Remove front panel (see Figure 7, page 9).

2.Follow steps 1 through 7 under Lighting Instructions, page 14.

3.With control knob pressed in, strike match. Hold match to pilot until pilot lights.

4.Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. Now follow step 9, under Lighting Instructions, page 14.

5.Replace front panel.

INSPECTING HEATER

Check pilot flame pattern and burner flame pat- tern often.

PILOT FLAME PATTERN

Figure 21 shows a correct pilot flame pattern. Figure 22 shows an incorrect pilot flame pattern. The incor- rect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When the thermocouple cools, the heater will shut down.

If pilot flame pattern is incorrect, as shown in Figure 22

•turn heater off (see To Turn Off Gas to Ap- pliance)

•see Troubleshooting, page 18

Note: The pilot flame on natural gas units will have a slight curve, but flame should be blue and have no yellow or orange color.

Thermocouple

Blue Pilot Flame

 

 

Pilot Burner

Figure 21 - Correct Pilot Flame Pattern

Thermocouple

Yellow Pilot Flame

Pilot Burner

Figure 22 - Incorrect Pilot Flame Pattern

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Contents What to do if YOU Smell GAS Table of Contents Safety Information Ignition System Product FeaturesSafety Device Local CodesUnusually Tight Construction AIR for Combustion VentilationProviding Adequate Ventilation Following are excerpts from National FuelVentilation Air From Inside Building Determining FRESH-AIR Flow for Heater LocationVentilation AIR Determining if You Have a Confined or Unconfined SpaceVentilation Air From Outdoors AIR for Combustion Ventilation InstallationInstallation Items Check GAS TypeThermostat Sensing Bulb Locating HeaterMarking Screw Locations Installing Heater to WallMounting Bracket Removing Front Panel Of HeaterPlacing Heater On Mounting Bracket Installing Bottom Mounting ScrewsAttaching To Wall Stud Method Attaching To Wall Anchor MethodMounting Base Feet to Heater Connecting to GAS SupplyMounting Base Feet to Floor Where required by local code Mounting Heater to Floor OptionalClogged heater valves Dealer. See Accessories,Be upstream from heater see Figure Appliance Apply pipe joint sealant lightly to male NPTChecking GAS Connections Test Pressures In Excess Of 1/2 Psig 3.5 kPaTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa For Your Safety Read Before Lighting Operating HeaterLighting Instructions Thermostat Control Operation Manual Lighting ProcedureInspecting Heater To Turn OFF GAS To ApplianceBurner Pilot AIR Inlet Soft bristled brush to cleanBurner Flame Pattern ODS/PILOT and BurnerWhen Gas Pressure Is Too Low Cleaning MaintenanceService Hints Technical ServiceContact local propane/LP gas company TroubleshootingObserved Problem Possible Cause Remedy Control knob is not in pilot positionDelayed ignition of burners Manifold pressure is too low Goes out when control knob is Control knob not pressedProblem could be caused by AssemblyInitial operation Processes Hours of operation Noise when burner is litWhen heated, vapors from Turn heater off when using Slight smoke or odor duringGas leak. See Warning Specifications Service Publications Replacement PartsIllustrated Parts Breakdown Parts List 111435-01 Electronic Ignitor 097159-04 Piezo IgnitorFront Panel 107954-01 107955-01 Floor Mounting KIT GA4550 AccessoriesEquipment Shutoff Valve GA5010 FAN Kits GA3250TParts Central Keep this Warranty Warranty Information

CBT30NT, CBT30PT specifications

The Desa CBT30NT and CBT30PT are high-performance heating solutions designed to deliver efficient warmth for both residential and commercial applications. These units are known for their reliability, innovative features, and easy integration into various spaces. They are particularly suited for those seeking effective heating options without compromising on energy efficiency.

The CBT30NT, or the natural gas version, stands out with its ability to provide consistent warmth through a direct vent system. This allows for safe operation while minimizing the impact on indoor air quality. It effectively draws combustion air from outside, which is essential for spaces with limited ventilation. The CBT30PT, on the other hand, is a propane variant, providing flexibility for users who may not have access to natural gas lines. Both models are designed with user convenience in mind, featuring a simple control system that allows for easy adjustments and temperature settings.

One of the key characteristics of these heaters is their advanced thermostat control, which enables precise temperature management. This feature ensures energy usage is optimized, preventing unnecessary heating and reducing utility costs. The compact and sleek design of the CBT30NT and CBT30PT allows them to fit seamlessly into any room without being an eyesore.

The heaters are equipped with durable materials, providing resilience against the rigors of daily use. They feature safety mechanisms, including flame failure safety devices, ensuring peace of mind for users. Furthermore, both models incorporate a forced air design, which disperses heat efficiently throughout the space, eliminating cold spots and creating a more uniform climate.

In summary, the Desa CBT30NT and CBT30PT are ideal heating solutions that combine safety, efficiency, and aesthetic appeal. Their natural gas and propane options respectively cater to a diverse range of user needs, making them versatile choices for enhanced comfort. With their advanced technology and user-friendly features, these heaters are a worthy investment for anyone in need of reliable heating solutions. Emphasizing energy efficiency and user safety, they represent the next generation of residential and commercial heating systems.
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