41
Section 3 - Maintenance Instructions
1. De-energize the pumps and close the supply and
return valves on the outdoor furnace. Remove the
inspection panel and insulation covering the drain
to gain access to the drain. Remove the cap and
connect a hose to the drain.
NOTE: Refer to General Installation Information
for information on draining treated system water.
2. Open the drain to drain the system; then flush the top
of the firebox and bottom of the water jacket beneath
the firebox using a wand placed in the vent (Fig. 41).
CAUTION
Completely clean out the firebox before draining
water from the outdoor furnace.
Fig. 41
3. Close the drain valve securely and replace the cap
on the drain after flushing the outdoor furnace.
4. Fill the furnace following the procedure in Water
Quality and Maintenance making sure to operate the
pump(s) to thoroughly mix the Corrosion Inhibitor
Plus™.
5. Insulate the area using either canned urethane foam
insulation or a mat of fiberglass insulation.
6. Install the inspection panel and secure with self-
tapping screws.
