Product Overview
PVI Industries 107774 Hot Surface Ignitor
The PVI Industries 107774 Hot Surface Ignitor is a replacement ignition component for applicable PVI Low NOx TurboPower water-heating equipment. During the burner-start sequence, its resistive element heats to provide an ignition source; the PVI drawing identifies a resistance range of 40 to 75 ohms.
Part Details:
- PVI Industries hot surface ignitor, manufacturer part number 107774
- Identified for applicable PVI Low NOx TurboPower equipment
- Manufacturer-documented cross-reference to Norton MB478843
- Specified resistance range of 40 to 75 ohms
- Manufacturer drawing specifies 1800°F within 17 seconds at 102 ±1 volts
- Specified current of 4.25 to 4.75 amps at 132 ±1 volts
Documentation:
FAQs:
Q: Is the PVI 107774 hot surface ignitor compatible with my TurboPower water heater?
A: PVI’s engineering drawing identifies part 107774 for Low NOx TurboPower equipment, but it does not provide a complete list of compatible models or serial-number ranges. Confirm that 107774 appears in the parts documentation for the exact equipment model and serial number before ordering.
Q: Is Norton MB478843 the same ignitor as PVI 107774?
A: Yes. The PVI part-number table pairs Norton MB478843 with PVI part number 107774. Check the equipment parts documentation and the identification on the existing component before selecting the replacement.
Q: What are the electrical specifications of the PVI 107774 hot surface ignitor?
A: The PVI drawing specifies a resistance range of 40 to 75 ohms, 1800°F within 17 seconds at 102 ±1 volts, and current of 4.25 to 4.75 amps at 132 ±1 volts. These are manufacturer drawing specifications and should not be treated as field-testing or installation instructions.
Q: How can I verify that PVI 107774 is the correct replacement ignitor?
A: Verify the part number in the equipment documentation and compare the existing ignitor’s reference number, mounting arrangement, element configuration, lead arrangement, and dimensions. PVI 107774 corresponds to Norton MB478843 and has a different documented “A” dimension from the similar PVI 107775 configuration.
Q: What symptoms may lead a technician to inspect the PVI 107774 ignitor?
A: A failure to establish burner ignition, an ignitor that does not heat during the expected ignition sequence, or visible element damage may prompt inspection of the ignitor and related ignition components. These conditions do not prove the ignitor has failed because controls, wiring, power supply, gas-system components, and other burner-sequence conditions can cause similar symptoms.
