16
CONNECTING TANK TYPE WATER HEATERS
MULTIPLE APPLIANCE NETWORKS
Multiple Appliance Networks are formed by connecting network cables between multiple
tank type water heaters and the iCOMM™ system’s CM (communication module) in a “daisy
chain” configuration - see Figure 15 on page 20.
Multiple Device Adapters - MDAs
“Tank type” water heaters in a Multiple Appliance Network require MDAs (multiple device
adapters) to be installed on each water heater in the network - see pages 19 and 20. MDAs
have two female RJ45 sockets and a short length of network cable with a male RJ45 plug.
There is a small green LED light on the top that verifies power from the CM is present at the
MDA - see Figure 10.
MDAs are sold separately as a kit. One MDA kit must be ordered for each tank type water
heater connected to a Multiple Device Network. Each MDA kit comes with the items listed in
Table 3. Ensure all these parts are present before you begin the installation.
TABLE 3
Item
Quantity
Description
1
1
MDA assembly
2
1
Splitter – T Adaptor (Category 5 cable splitter)
3
1
†
Category 5 network cable (25 feet)
†. Cat 5 cable included for connecting one tank type water heater to the iCOMM™ network. Longer
cables can be obtained from local computer stores/home centers or fabricated in the field.
4
2
Adhesive Velcro strips
5
5
Wire tie mounts 3/4” (adhesive/screw mount)
6
5
Wire tie wraps
7
1
Universal Knockout Bushing (for commercial electric tank type water heaters only)
MDA (multiple device adapter)
End View
Figure 10
RJ45 male plug
Two RJ45
female sockets
Small green LED
light on top verifies
power from the CM
is present.
