11
Updated: 07/10/12
Ash Removal
1) When removing ashes, always turn off the combustion air blowers.
2) Open the outer door, which releases the auger tube cover plate.
3) insert the ash auger and remove the ashes.
Supply Line and Return Line Threaded Connectors
There are two 1.5” Supply line and two 1.5” Return line threaded connectors (female nPT) located at the back
of the Model 600 CSS. A brass nipple should be used to connect any fittings to the threaded spuds. Refer to
the “Supply Line and Return Line Threaded Connectors” section in the Operators and maintenance manual.
Low Water Cutoff
Principles
The low water Cutoff (located above the flue) shuts down power to the fans
when the water in the furnace is low.
The only way to restore power to the fans is to fill the furnace with water.
Do not fill a warm furnace with cold water.
Outer Door
Operation
The outer door on the firebox is hinged and latched separately from the internal fire
door.
The door is hinged and opens to the right of the furnace. As the door opens it
releases the A.R.D. auger tube cover plate, which allows air to enter the firebox before
the fire door is opened, reducing the risk of a flashback. It is strongly recommended that
a post is installed to the outside corner of the opened door to fasten the back and front
external doors secure while in the open position. This reduces the risk of injury caused
by the sudden movement of either large door (see drawing supplied).
