Paloma MIC-180 - Manual (Page 10)

6. Typical Installation of Extended Manifold Controller For Manifolding seven
(7) to twenty (20) Water Heaters
Manifold controller (MIC-180) provides control of two (2) to six (6) water heaters when properly
installed and connected with communication cables (sold separately) to any Rheem-Ruud or Paloma
commercial Tankless Water Heaters. To control additional water heaters (7 to 20 water heaters), it is
necessary to purchase separately and install an extended communication PCB (MICS-180) in the
control system.
Example of typical installation using both main communication PCB and extended communication
PCB (MICS-180) is shown below in figure 12.
Manifold box
Communication cable
from water heater No. 1
Ground wire
Power wires
Main communication PCB (For
manifolding 2 to 6 heaters)
Junction box
Figure 12
LED Display (Displays error code
and selected water heater)
Relay cable
Communication cable
from water heater No. 7
Wiring from main
remote control
Extended communication PCB (For
manifolding 7 to 20 heaters)
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