Description
Fenwal 05-343261-143 Ignition Control Board. Replacement Fenwal for Mighty Max boiler, Teledyne Laars, Conversion kit
Please provide the model and serial number of your heater so we can send you the correct replacement.
This control is no longer available. You will be sent a factory direct replacement kit.
NO LONGER AVAILABLE NO LONGER AVAILABLE NO LONGER AVAILABLE NO LONGER AVAILABLE
Technical Specification
SPECIFICATIONS
| Size (H x W x D) | 3.93 x 5.68 x 1,60 in(99.8 x 144.3 x 40.6 mm) |
| Weight | Approximately 6 02 (180 g) |
| Input Voltage | Ignitor: 120 VAC, 50/60 HzThermostat; 24 VAC, 50/50 Hz (Operating range20-28 VAC) |
| Input Current Drain (24 VAC) | 100 mA, does not include valve power |
| Diagnostic Outputs | Prepurge and lockout 24 VAC, 500 mA, inrush 2 A maximum |
| Valve Rating | 24 VAC, 1.0 A maximum, inrush 2 A maximum |
| Ignitor Proving Current | (See How to Order) |
| Inducer Contact Rating | 10 A at 250 VAC (1/3 hp) |
| Ambient Temperature Limits | -40 to deg. F : -40 todeg. C) |
| System Check Circuit | Checks ignitor proving, valve control, and flamerectification circuits before ignition sequence isinitiated. |
| Tries for Ignition | Available in one- or three-try versions. |
| Trial-For-Ignition Periods (Lockout time) | 2.0, 4.0 or 7.0 seconds, depending on model. |
| Prepurge | None, 15 or 30 seconds, depending on model. |
| Postpurge | None, 15 or 30 seconds, depending on model. |
| Retry for Ignition. | Loss of flame will result in one retry for ignition.(Two retries on three-trial-for-ignition model,) |
| Flame Current | .75 rnicroamp minimum |
| Moisture Resistance | Each module is conformal coated to operate to 95%R. H. However, care must be taken to protect themodule from direct exposure to water. |
|
CONTROL CONFIGURATION |
|
|
Inducer |
Inducer With Postpurge (30 second) |
|
Sense |
Local Sense With Purge & Lockout Indicators |
|
Try |
Three Try |
|
Connectors |
With All Quick Connect Connectors Without Pressure Switch Input |
|
Prepurge |
15 Second Prepurge |
|
Proving Current |
2.7 Proving Current (in amps) |
|
TFI |
7.0 Second |
