Installation Instructions

14
EN
A. Removing the Cover
• Pry o the round knob cover plate (Figure
5, M) with a small  at head screwdriver.
• Pry o the screw covers (Figure 5, V) with
a small  at head screwdriver.
• Remove the Phillips screws.
• The cover (Figure 5, C) can now be
removed by pulling out its left hand edge.
When reassembling, work in the opposite
way, being careful to insert the tongue of
the cover into the slot.
B. Draining the Heater
If the heater has been installed with  exible
hoses:
• Shut o the power supply.
• Turn the heater upside down over a sink
to drain the water out of it.
The water heater can also be emptied by:
Figure 5 - Water Heater Cover and Thermostat Detail
D. Inspecting the Anode Rod
The purpose of the anode rod (Figure 7, N)
is to protect the tank against corrosion. The
anode rod must be inspected once a year to
determine whether it requires replacement.
To access the anode rod, the heating element
must be removed. See Removing the Heating
Element above. Upon inspection, the anode
rod surface should appear smooth. If the rod
surface appears pitted, bumpy, rusty, or if the
rod is missing completely, then it must be
replaced.
Original anode rod sizes:
• 2.5 and 4 Models: length 6 1/2”, diameter
5/8”
C. Removing the Heating Element
• Shut o the power supply and drain the
water heater.
• Remove the front cover plate. Disconnect
terminals X, Y, and T. See Figure 6.
• Unscrew the four (4) heating element
retaining nuts (Figure 6, F).
• Remove the element (Figure 6, G).
Figure 6 - Open Heater Cover Detail
• Siphoning through the inlet side hose.
• Keep a hot water faucet open while
siphoning.
If the heater has been installed with rigid
piping:
• Siphon the water out through any lower
service valve on the inlet side.
• Keep a hot water faucet open while
siphoning the water out.
Figure 7 - Heating Element and Anode Rod Detail
• 8 Model: length 8 1/4”, diameter 5/8”
Certain installations may require more frequent replacement of the anode rod:
• Recirculation applications;
• Poor water quality;
• Galvanic / Electrolytic corrosion;
• High  ow applications