Desa CRN30 Inspecting Heater, Thermostat Operation, Pilot Flame Pattern, Burner Flame Pattern

Page 17

OPERATING HEATER

Continued

THERMOSTAT

OPERATION

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.

Blue Flame

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

Thermocouple

Pilot Burner

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 2 comfort level between HI and LO. All plaques will turn off and on.

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 8).

2.Follow steps 1 through 5 under Lighting Instructions, page 16.

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

4.Keep thermostat control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. Follow step 8 under Lighting Instructions, page 16.

5.Replace front panel.

INSPECTING HEATER

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

PILOT FLAME PATTERN

Figure 25 shows a correct pilot flame pattern. Figure 26 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 26

•turn heater off (see To Turn Off Gas to Appli- ance, page 15, depending on your model)

•see Troubleshooting, page 19

Figure 25 - Correct Pilot Flame Pattern

 

Yellow Flame

Thermocouple

Pilot Burner

 

Figure 26 - Incorrect Pilot Flame Pattern

BURNER FLAME PATTERN

Figure 27 shows a correct burner flame pattern. Fig-

ure 28 shows an incorrect burner flame pattern.

If burner flame pattern is incorrect, as shown in

Figure 28

 

•turn heater off (see To Turn Off Gas to Appli- ance, page 15, depending on your model)

•see Troubleshooting, page 19

Figure 27 - Correct Burner Flame Pattern

Figure 28 - Incorrect Burner Flame Pattern

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Contents Model CRN30 Shown CRP26, CRP26T, CRT26PT, CRN30, CRN30T, CRT30NTTable of Contents Safety Information Unpacking Product FeaturesLocal Codes Determining FRESH-AIR Flow for Heater Location AIR for Combustion VentilationProviding Adequate Ventilation Ventilation Air From Inside Building Ventilation AIRInstallation Items InstallationCheck GAS Type Locating HeaterThermostat Sensing Bulb Installing Heater to WallThermostat Models Only Mounting BracketMarking Screw Locations Methods For Attaching Mounting Bracket To WallPlaque Heater Attaching To Wall Anchor MethodPlacing Heater On Mounting Bracket Installing Bottom Mounting ScrewsMounting Base Feet to Floor Where required by local code Connecting to GAS SupplyMounting Heater to Floor Mounting Base Feet to HeaterJoint Nipple Sediment Trap From External Regulator Checking GAS ConnectionsTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Test Pressures In Excess Of 1/2 Psig 3.5 kPaLighting Instructions NON-THERMOSTAT Models For Your Safety Read Before LightingOperating Heater Thermostat Models For Your Safety Read Before Lighting Manual Lighting ProcedureTo Select Heating Level To Turn OFF GAS To ApplianceControl Knob CRP16T CRP26T Ignitor Button Control KnobThermostat Operation Inspecting HeaterPilot Flame Pattern Burner Flame PatternTechnical Service Cleaning MaintenanceService Hints Observed Problem Possible Cause Remedy TroubleshootingODS/pilot lights but flame Gas leak. See Warning CRN18, CRN18T CRN30, CRN30T CRT30NT SpecificationsService Publications AccessoriesReplacement Parts Cabinet Body Models Illustrated Parts BreakdownParts List Cabinet Body Models CRT26PT and CRT30NT KEY Part Number CRT26PT CRT30NT Description QTY Burner Assembly Models CRP16, CRN18, CRP26 and CRN30 110803-02 Illustrated Parts Breakdown Parts Central Limited Warranty VENT-FREE Infrared GAS Heaters Warranty InformationKeep this Warranty

CRN30 specifications

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One of the main features of the Desa CRN30 is its powerful processing unit, which is engineered to handle multitasking with ease. Equipped with a high-performance chipset, it ensures smooth operation across various applications, making it ideal for users who demand speed and efficiency. The device also boasts ample memory and storage options, allowing users to seamlessly manage large files and run multiple applications simultaneously without any lag.

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User experience is enhanced through an intuitive interface that provides easy navigation. The device features a vibrant display that ensures clear visibility in various lighting conditions, further elevating the user experience. Additionally, the Desa CRN30 is compatible with a range of applications, providing users with the flexibility to customize their device according to their specific needs.

Security is also a prime consideration in the design of the Desa CRN30. With advanced security features such as biometric authentication and encrypted storage, users can rest assured that their data and personal information are well-protected from unauthorized access.

In conclusion, the Desa CRN30 stands out as a powerful, reliable, and secure device that caters to the needs of modern users. Its exceptional features, advanced technology, and user-friendly design make it an ideal choice for anyone looking to enhance their productivity and experience in an increasingly digital world. Whether for work or leisure, the Desa CRN30 promises to deliver outstanding results.
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