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CONDENSATE DRAIN – The water heater should either be raised several inches above the floor on a concrete slab or
use a low profile condensate pump to allow free drainage of condensate from the elbow drain fitting. This water heater
is a condensing type unit and requires a drain to be located in close proximity to allow the condensate to drain safely.
The condensate drains from the unit at the exhaust elbow located near the bottom of the unit. The preferred connection
to the drain fitting is to use a ¾ inch (1.9 cm) elbow sealed with silicone over the outside of the drain outlet and use ¾
inch (1.9 cm) for the drain trap and condensate line to a drain. Use a thick bead of silicone caulk over the outside of the
drain outlet connection before assembling the elbow. This is preferred over using the threaded tap because the larger
drain line will drain more freely and if too much force is applied to the plastic threads, the fitting may crack and cause a
leak. Make sure the condensate drain line slopes down, away from the water heater at least ⅛ inch (.3 cm) per foot (.3
m) toward the drain. The condensate drain pipe must not be routed through an area subject to below freezing
temperatures. The condensate build-up will block the exhaust outlet, which will cause improper operation. Refer to
Figure 2 for the proper connection of an elbow to the drain outlet and a condensate trap.
Figure 2. Condensate Elbow With Trap
CLEANOUT – All models are equipped with a cleanout opening to aid in removal of hard water deposits from the tank
bottom. If this water heater operates under hard water conditions, the following should be performed at least every 3
months: Turn off water supply and drain the water heater. Remove the cleanout jacket cover and tank cover. When
cleaning the tank, care must be taken to avoid trying to break deposits loose as this could damage the glass lining and
shorten the life of the water heater. After cleaning, re-install the cleanout tank cover and jacket cover, and refill with
water. Refer to the section, “Section X: Maintenance” in this Installation and Operating Instruction manual for the
procedures for filling and draining the water heater.
SACRIFICIAL ANODES – Four sacrificial anode rods have been installed in the tank head to extend tank life. The
anode rods should be inspected periodically for corrosion and replaced when necessary to prolong tank life. Water
conditions in your area will influence the time interval for inspection and replacement of the anode rods. The use of a
water softener may increase the speed of anode consumption. More frequent inspection of the anodes is needed when
using softened (or phosphate treated) water. Contact the installing contractor, or service provider that installed the
water heater or the manufacturer listed on the rating plate for anode replacement information.