1. Introduction
This manual provides essential information for the safe and effective installation, operation, and maintenance of the Delixike 1950-001 Robertshaw Thermopile. A thermopile is a safety device used in gas appliances to generate a small electrical current (millivolts) when heated by a pilot flame. This current signals the gas valve to remain open, allowing the main burner to operate. Please read this manual thoroughly before proceeding with installation or service.
2. Product Overview
The Delixike 1950-001 is a 36-inch thermopile designed to produce 250-750 millivolts (MV). It features a 2-lead wire type and includes a PG9 adapter for connection. This component is crucial for the safe operation of various gas-fired heating systems.
Figure 2.1: The Delixike 1950-001 Robertshaw Thermopile. This image shows the complete thermopile unit, including the sensor tip, brass fitting, armored cable, and two electrical leads with spade connectors.
2.1 Key Features
- Length: 36 inches (91.44 cm)
- Voltage Output: 250-750 Millivolts (MV)
- Lead Type: 2-wire lead
- Connection: Includes PG9 Adapter
- Construction: Durable body structure with high-temperature resistance fire lines and a metal aluminum envelope.
Figure 2.2: Detailed view of the thermopile's construction. This image highlights the internal components, including the two high-temperature resistance fire lines, metal aluminum envelope, glass fiber wrapping line, and copper material.
3. Compatibility
This thermopile is suitable for a wide range of gas appliances that utilize millivolt-controlled gas valves. It is a functional equivalent for various brands and models.
3.1 Applicable Appliances
- Gas Ovens
- Gas Grills
- Gas Boilers
- Gas Water Heaters
- Restaurant Kitchen Fryers (e.g., Imperial Elite, Frymaster, Blue Seal, Dean, Pitco)
- Appliances using Propane and Natural Gas
Figure 3.1: Examples of gas appliances where the thermopile can be used, including gas ovens, grills, boilers, and water heaters.
3.2 Replacement Part Numbers
This thermopile can replace the following part numbers:
- Q313A
- 60125501
- 60J79
- 60J7901
- H5882
- R942
- R1054
- 2103-512
- 1950-001
- 071515
- 53374
- 7533113
Figure 3.2: An image showing a water heater assembly, indicating that this thermopile can replace various listed models.
4. Safety Information
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Read the installation, operating, and maintenance instructions thoroughly before installing or servicing this equipment.
- Always turn off the gas supply and electrical power to the appliance before attempting any installation or service.
- Ensure adequate ventilation when working on gas appliances.
- Verify all gas connections for leaks after installation using a soap solution.
- If you are unsure about any step, consult a qualified service technician.
- Do not bypass any safety devices.
5. Installation
This section outlines the general procedure for replacing a thermopile. Specific steps may vary depending on your appliance model. Refer to your appliance's service manual for detailed instructions.
5.1 Pre-Installation Checks
- Confirm the new thermopile matches the specifications (length, voltage, lead type) of the original part.
- Gather necessary tools (wrenches, screwdrivers, multimeter).
- Ensure the gas supply valve is closed and the appliance's electrical power is disconnected.
5.2 Replacement Procedure
- Locate the Old Thermopile: Identify the existing thermopile, typically positioned in the pilot burner assembly, with its tip immersed in the pilot flame.
- Disconnect Electrical Leads: Carefully disconnect the two electrical leads (usually red and white) from the gas valve terminals. Note their original positions.
- Remove Old Thermopile: Unscrew the thermopile's brass fitting from the pilot burner assembly. This may require a wrench.
- Install New Thermopile: Thread the new Delixike 1950-001 thermopile into the pilot burner assembly. Ensure it is hand-tightened, then use a wrench for a final snug turn. Do not overtighten.
- Connect Electrical Leads: Connect the new thermopile's leads to the appropriate terminals on the gas valve. Typically, the red lead connects to the outer terminal and the white lead to the middle terminal, but always verify with your appliance's wiring diagram.
- Verify Placement: Ensure the tip of the thermopile is correctly positioned within the pilot flame for optimal heating.
- Restore Gas and Power: Slowly open the main gas supply valve. Restore electrical power to the appliance.
- Test for Leaks: Apply a soap and water solution to all gas connections. Bubbles indicate a leak, which must be corrected immediately.
- Test Operation: Follow your appliance's instructions to light the pilot and main burner. Observe if the pilot stays lit and the main burner ignites correctly.
Figure 5.1: A close-up view of a pilot burner assembly, illustrating where the thermopile connects and its position relative to the pilot flame. This image helps visualize the connection points for the 2-lead thermopile.
6. Operation
Once properly installed, the thermopile operates automatically as part of the appliance's safety system. When the pilot flame heats the thermopile tip, it generates a small DC voltage (millivolts). This voltage is sent to the gas valve, which contains an electromagnet. If sufficient voltage is present, the electromagnet holds the gas valve open, allowing gas to flow to the pilot and main burner. If the pilot flame extinguishes, the thermopile cools down, the voltage drops, and the gas valve closes, shutting off the gas supply to prevent hazardous gas leaks.
7. Maintenance
Regular inspection and maintenance can extend the life of your thermopile and ensure the safe operation of your appliance.
- Annual Inspection: Have a qualified technician inspect your appliance annually, including the thermopile and pilot assembly.
- Cleanliness: Ensure the thermopile tip and pilot burner are free from soot, dust, or debris, which can interfere with proper heating and voltage generation. Use a soft brush or compressed air for cleaning.
- Pilot Flame Check: Verify that the pilot flame consistently impinges on the thermopile tip. A weak or misdirected pilot flame can lead to insufficient voltage.
- Voltage Measurement: If troubleshooting, a multimeter can be used to measure the millivolt output of the thermopile when heated by the pilot flame. Refer to your appliance's specifications for the expected voltage range.
8. Troubleshooting
If your gas appliance is experiencing issues related to the pilot or main burner, the thermopile may be a factor. Here are common symptoms and potential solutions:
| Symptom | Possible Cause | Solution |
|---|---|---|
| Pilot lights, but goes out when release button is released. | Insufficient millivolt output from thermopile; faulty gas valve; loose connections. | Check pilot flame position on thermopile. Clean thermopile tip. Check electrical connections. Test thermopile output with a multimeter (should be 250-750 MV). Replace thermopile if output is low. If still problematic, gas valve may be faulty. |
| Main burner does not ignite after pilot is established. | Faulty gas valve; thermostat issue; insufficient thermopile voltage (less common if pilot stays lit). | Ensure thermostat is set correctly. Verify thermopile voltage. Consult appliance service manual for gas valve diagnostics. |
| Pilot will not light or stay lit at all. | No gas supply; clogged pilot orifice; faulty igniter/spark electrode; faulty thermopile (if it's preventing pilot from staying lit). | Check gas supply. Clean pilot orifice. Inspect igniter. If pilot lights but immediately goes out, refer to the first symptom. |
| Thermopile shows visible pitting or damage. | Wear and tear; excessive heat exposure. | Replace the thermopile. |
9. Specifications
| Attribute | Value |
|---|---|
| Model Number | 1950-001 |
| Brand | Delixike |
| Length | 36 inches (91.44 cm) |
| Voltage Output | 250-750 Millivolts (MV) |
| Lead Type | 2 Wire Lead |
| Adapter Type | PG9 |
| Item Weight | 2.64 ounces (74.84 grams) |
| Package Dimensions | 5.24 x 2.99 x 0.55 inches |
| Manufacturer | Delixike |
Figure 9.1: Visual representation of the thermopile's length (36 inches) and rating (750 MV), along with its normal working temperature range of 700-750°C.
10. Warranty and Support
For warranty information or technical support regarding your Delixike 1950-001 Robertshaw Thermopile, please contact the manufacturer directly. Keep your purchase receipt as proof of purchase.