PAGE 15of 46 HG-1-1701 GAS-FIRED HEATER
LAST UPDATED: JAN-25-2022 © SAMUEL JACKSON, INCORPORATED 2011 ALL RIGHTS RESERVED
AIRFLOW TRANSDUCER TEST
Push the button labeled Fan. The button will turn green as well as display the word “On”
and the fan will start. The two boxes at the top of the screen will show green check
marks that prove the Air Flow Transducer is satisfied and that the fan starter indicates the
fan is running.
Interference Test
– Ensures that the ignition wire and the flame relay wire are electrically
isolated from each other. Note that the Fan and Air interlocks are indicated at the top of the page.
The fan must run to evacuate any gas from the heater prior to initiating a spark.
When the Ignition Transformer button is pressed, and the box turns green, the PLC turns on the
ignition transformer and causes a spark at the ignitor plug. If the Flame Relay senses a flame at
this time it means the there is an electrical interference between the ignition circuit and the flame
detection circuit. The two must be isolated from each other before the heater can run. Refer to
Error 155 explanation in the following sections.
Содержание HG-1-1701
Страница 4: ......
