Fenwal-Series, Installation Instructions

FENWAL-SERIES 05-14

Fan and Heater

FENWAL

SERIES 05-14

Proof of Flame

Direct Spark Ignition System

U.S. Patent Nos. 3,504,992;3,832,123;3,847,533;3,861,854. Can Patent No. 860,521

Installation Instructions

General Information

Fenwal Series 05-14 Spark Ignition Systems are manufactured and tested to the most rigid quality control standards. Strict adherence to these instructions will assure satisfactory performance.

WARNING: This ignition system complies with the Z21.20 ANSI Standards for gas burner auto- matic ignition systems when installed with Fenwal specified electrodes and high voltage lead wires. The replacement of components or any alterations to this control board will invalidate our warranty, void agency certifications and can create hazard- ous conditions that may cause property damage, personal injury or even death.

Operation

On a call for heat, input power is applied to control board, sparking is then initiated and the gas valve is energized. Sparking continues with the gas valve powered for a specified "trial-for- ignition" period. (See Specifications for timing periods.)

In normal operation, as soon as flame is estab- lished and proven by the flame sensing circuitry, sparking will cease immediately and the system will remain "on", monitoring the flame until the end of the duty cycle.

Should a flame-out occur during the duty cycle, the system will reactivate the spark with 0.8 seconds, to provide for re-ignition. The flame will either be re-established within the "trial-for- ignition" time, or the system will lock-out in the normal manner. Should lock-out occur, reset action (manual or thermostatic) must be taken

before the unit can be recycled. Reset action may be accomplished at either the thermostat or at the control unit circuit breaker, depending on the model number of the unit. If the ignitor is a manual reset model (05-140X0X-00X), the circuit breaker will trip several seconds after sparking stops and the gas valve is deenergized. If the ignitor is designed for thermostatic reset, (05-1420X0X-00X), the circuit breaker will only trip after several attempts at re- ignition.

Thermostat Reset (Line Interruption)

Should the 05-14 series with the thermostat reset (models designated 05-142X01-0XX) go into lock- out due to loss of flame, the thermostat should be momentarily turned below set point or the control switch opened to initiate recycling. Lowering the thermostat below ambient will normally recycle the system. If several attempts at thermostatic reset do not result in ignition, a manual reset button on the ignitor module will actuate, preventing further recycling.

Manual Reset

The manual reset feature, available on models designated 05-140X01-00X requires manual resetting of the system in the event of lock-out.