Harman Accentra Installation & Operating Manual page 26

Hide thumbs Also See for Accentra:

Table of Contents

Accentra motor & Component locations

Feed Motor

Combustion Blower

The Control board/ESP combination is responsible for all

high limit safety control. There are 2 high limits, one normal

operation high limit and one backup high limit. The control

has an automatic diagnostic circuit that continuously monitors

the ESP and Room Sensor for faults. If a fault should occur,

the control sends a status alert and at the same time the

unit goes down to minimum feed/minimum burn as a safety

condition.

Distribution Blower

ESP- Probe

3" Flue Pipe Connector

The low draft Pressure Switch is a differential pressure

switch that senses the pressure between the firebox and the

room. If the negative pressure in the firebox becomes too

low for proper combustion, the switch opens, interrupting

power to the feed motor and the igniter. If the switch "opens"

during a rest period, the control will not try to feed or ignite. If

the circuit opens during a feed or ignition cycle, the indicator

lights will remain "on".

Air Intake Flapper

Low Draft Pressure

Switch

Table of Contents

Show Quick Links

Table of Contents