Desa NZ119, NZ118 Inspecting Heater, Operating Blower, Pilot Flame Pattern, Burner Flame Pattern

Page 20

Operating Heater

Continued

Operating

Blower

This heater has a thermostatic blower that will automatically turn ON or OFF.

Note: Your heater and thermostat blower will not turn on and off at the same time. The heater may run for several minutes before the blower turns on. After the heater modulates to the pilot position, the blower will continue to run. The blower will shut off after the heater cabinet temperature decreases.

Note: It is safe to operate heater with blower turned off. However, the blower helps distrib- ute heated air from the heater.

Inspecting Heater

Check pilot flame pattern and burner flame pattern often.

PILOT FLAME PATTERN

Figure 29 shows a correct pilot flame pattern. Figure 30 shows an incorrect pilot flame pat- tern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermo- couple to cool. When the thermocouple cools, the heater will shut down.

If pilot flame pattern is incorrect, as shown in Figure 30

•turn heater off (see To Turn Off Gas to Ap- pliance, page 16)

•see Troubleshooting, page 22

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

Pilot

Burner

Thermocouple

Figure 29 - Correct Pilot Flame Pattern

Yellow

Flame

Pilot

ThermocoupleBurner

Figure 30 - Incorrect Pilot Flame Pattern

BURNER FLAME PATTERN

Figure 31 shows the burners in the ON and OFF positions. Burners will come on and go off when the remote control is set in the manual on mode or thermostat mode.

Figure 32 shows a correct burner flame pat- tern. Figure 33 shows an incorrect burner flame pattern.

If burner flame pattern is incorrect, as shown in Figure 33

•turn heater off (see To Turn Off Gas to Ap- pliance, page 16)

•see Troubleshooting, page 22

Burners ON

Burners OFF

Figure 31 - Burner Patterns

Figure 32 - Correct Burner Flame Pattern

Figure 33 - Incorrect Burner Flame

Pattern

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Contents What to do if YOU Smell GAS Actual heater may Vary from illustrationTable of Contents Safety InformationSafety Information Product Features Product IdentificationLocal Codes UnpackingAir For Combustion Ventilation Providing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location Determining if You Have a Confined or Unconfined SpaceInstallation Ventilation AIRCheck GAS Type Ventilation Air From Inside BuildingInstallation Items Locating HeaterHeaterpilotandburnermustbeat least 18 45.7 cm above floor This heater is designed to be mounted on a wallInstalling Heater to Wall Installing Bottom Mounting Screws Attaching To Wall Stud MethodAttaching To Wall Anchor Method Placing Heater On Mounting BracketInstalling Remote Control Receiver Installing batteries into remoteMounting Base Feet to Floor Where required by local code Mounting heater to floor With optional floor kitConnecting to GAS Supply Close equipment shutoff valve see Figure Checking GAS ConnectionsTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Extension Cord Connecting to electrical supplyPressure Testing Heater Gas Connections For Your Safety Read Before Lighting Operating HeaterLighting Instructions Do not try to light any applianceHand-Held Remote Operation Manual Lighting ProcedureTo Turn OFF GAS To Appliance Setting the Clock Setting Fahrenheit and Celsius ScaleSetting Programs ButtonsLow Battery Indicator Childproof Lock Out CPGeneral Information Code SettingReceiver Slide Inspecting Heater Operating BlowerPilot Flame Pattern Burner Flame PatternCleaning Maintenance Service HintsTechnical Service ODS/PILOT and BurnerTroubleshooting Observed Problem Possible Cause RemedyReplace pilot assembly Replace control valve Clean burner orificesBurner backfiring during Combustion Or damagedService person Batteries not installed corStalled. Battery power is Replace batteries in re Low When heated, vapors fromGas leak. See Warning Illustrated Parts Breakdown Models097555-01 Not a field replaceable part Parts List117103-04 Illustrated Parts Breakdown and Parts List Burner AssemblySpecifications Wiring DiagramsService Publications Replacement PartsAccessories Parts Central Warranty Information Keep this WarrantyModel Serial No Date Purchased Industrial Drive P.O. Box 118621-01 Rev. B

NZ103 NZ104, NZ119, NZ102, NZ100, NZ118 specifications

Desa's NZ series includes a range of innovative products designed to enhance efficiency, comfort, and user experience in various applications. This series features models NZ100, NZ101, NZ102, NZ103, NZ104, and NZ106, each offering unique capabilities while sharing core technological advancements and characteristics.

The NZ100 model is renowned for its compact size and energy efficiency. It is ideal for small to medium spaces, combining sleek design with powerful performance. It includes smart thermostatic controls that allow users to customize temperature settings easily, ensuring comfort and energy savings.

The NZ101 steps up with enhanced features, including a larger heating capacity and advanced airflow management. This model employs a dual-fan system, ensuring even heat distribution throughout the room. Its portable design means it can be easily moved to different locations, making it versatile for various environments.

NZ102 integrates cutting-edge technology with modern aesthetics. This model features an intuitive touch interface, allowing users to access multiple functions seamlessly. Its built-in Wi-Fi connectivity enables smart home integration, allowing remote control via smartphone apps. Additionally, NZ102 is equipped with multiple safety features, including an automatic shut-off function.

The NZ103 model emphasizes durability and robustness, designed for tougher conditions. It comes with a rugged exterior and waterproof components, making it suitable for both indoor and outdoor use. The high-performance heating elements ensure rapid warmth, making it a favorite for those needing immediate heat in varying conditions.

NZ104 focuses on enhancing user comfort and customization. This model includes adjustable heat settings and programmable timers, allowing users to set specific heating schedules. Its whisper-quiet operation is ideal for bedrooms and quiet spaces, ensuring minimal disruption while providing warmth.

Finally, the NZ106 serves as the flagship of the series, combining all the best features of its predecessors. It offers advanced smart technology, including voice control compatibility, allowing users to manage their heating effortlessly. The NZ106 employs eco-friendly materials and technologies, aligning with sustainable energy practices while maintaining performance.

Each model in the Desa NZ series is engineered with high-quality materials and meticulous attention to detail, ensuring longevity and reliability. The integration of modern technologies paired with user-centric designs makes these models a top choice for heating solutions across various applications.
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