14
CONNECTING TANK TYPE WATER HEATERS
CONNECTING ELECTRIC WATER HEATERS
1 Turn off power to the water heater at the main disconnect switch or breaker.
2 There will always be hot surfaces on operating water heating appliances. Be careful to avoid
contact with hot pipes and other surfaces when working on or near water heating appliances.
3 Open the control cabinet and locate the CCB (central control board). On SSE models the CCB is
mounted on the hinged cabinet door. On CSB IFE models the CCB is mounted on the upper left
portion of the control panel - see Figure 9 on page 15.
4 On SSE models remove one of the 1/2” knockout plugs on the left side of the control cabinet that
is at the same height as the CCB. Install a Knockout Bushing (Table 1 on page 7) in the knockout
hole - see Figure 9 on page 15
5 On CSB IFE models that have a factory provided 1/2” knockout (left side of the top plate of the
control cabinet) remove the knockout plug. Install a Knockout Bushing (Table 1 on page 7) in the
knockout hole - see Figure 9 on page 15.
6 On CSB IFE models that do not have a factory provided 1/2” knockout use a portable drill and a
1/2” electrical knockout punch/die (see Tool Requirements on page 4) to add a knockout hole on
the top plate of the control cabinet. Locate the knockout hole as shown in Figure 9 on page 15.
Take steps to ensure metal shavings do not fall into any electrical components such as the CCB,
contactors or fuse blocks when cutting the knockout hole. After the knockout hole has been
added to the top plate of the control cabinet install a Knockout Bushing (Table 1 on page 7) in the
knockout hole.
7
On Single Appliance Networks:
route the network cable from the CM (see page 11) through the
knockout bushing and plug the cable into the J9 socket on the CCB - see Figure 8 and Figure 9
on page 15. Proceed to the Start Up section on page 25 when these connections are complete.
8
On Multiple Appliance Networks:
all tank type water heaters on the network require a MDA
(multiple device adapter) - proceed to page 16.
If any gas fired tank type water heaters are to be added to the network see page 12.
Commercial Electric CCB (central control board)
Figure 8
J9 Socket