Rheem 864 Series Owner's Manual And Installation Instructions page 79

EZ LINK CABLE CONNECTION
The references in steps 5 to 8 are to the
connect the EZ Link cable to the water heaters:
"Installation – Controllers"
Refer to
Close any hot taps and ensure the burners on both water heaters are not operating.
1.
Switch off the electrical supply at the power outlet to each water heater.
2.
Remove the screws holding the front panel to the jacket on each water heater.
3.
Gently disengage the front panel and pull forward to remove from each water heater.
4.
Connect one end of the EZ Link cable to the first water heater.
5.
If a controller(s) is connected to one of the water heaters, then this is the 'first' or 'master' water heater.

Draw the cable through the cable grommet on the underside of the water heater.

Plug the cable into the four pin connector located immediately below the MIN button, toward the upper
right hand corner of the Control Board (refer to the
The connector will only fit one way.

Press until the connector snaps into place.

Secure the EZ Link cable with the clamp and screw provided to the top right of the Control Board
(refer to the Control Board
Switch DIP SWITCH 4 to the on (up) position on the
6.
first water heater (refer to the
diagram). Note: This dip switch is on the DIP 1 set
of dip switches.
If a temperature controller is not installed, then

also switch DIP SWITCH 1 of the DIP 2 set of
dip switches to the on (up) position on the first
water heater.
Connect the other end of the EZ Link cable to the
7.
second water heater.

Draw the cable through the cable grommet on
the underside of the water heater.

Plug the cable into the four pin connector
located immediately below the MIN button,
toward the upper right hand corner of the
Control Board (refer to the
diagram).
The connector will only fit one way.

Press until the connector snaps into place.

Secure the EZ Link cable with the clamp and
screw provided to the top right of the Control
Board (refer to the
Switch DIP SWITCH 4 to the on (up) position on the
8.
second water heater (refer to the
diagram). Note: This dip switch is on the DIP 1 set
of dip switches.
Refit the front panel and screws to each water heater.
9.
'Control Board with EZ Link Connection'
on page 82 for information on the installation of temperature controllers.
diagram).
Control Board
Control Board
Control Board diagram)
Control Board
EZ LINK SYSTEM DUAL INSTALLATION
Control Board diagram).
dip switch settings
without temperature controller
dip switch settings
with temperature controller connected
79
diagram on page 80. To