Installation Guide

57
17 Installation of the Multi-System
• For 6 Water Heaters or less, use the system controller (SC-401-6M).
For 6 Water Heaters or more, use the system controller unit (SCU-401-12M, SCU-401-24M).
• SC-301-6M and SCU-301-12M are also compatible, but they are not enable to use “Noritz Wireless Adapter
(NAW-1)”.
• Refer to the Installation Manual of the system controller for more information on construction and setting.
System Controller
Gas Pipe
Remote Controller
Hot
Water Supply Pipe
(1 1/4 in.
-2 in.)
(Size for max. flow)
Cold Water Supply Pipe
Water Heater 6Water Heater 2Water Heater 1
Insulate or apply heating materials to both the cold
water supply piping and the hot water supply piping
to prevent freezing during cold weather and to
prevent heat loss through the piping.
(1 1/4 in.-2 in.)
Size the cold water
supply piping to allow
for maximum flow r
ates
of the Water Heaters.
17.1 With System Controller (SC-401-6M)
17.1.1 Example of Installation without a recirculation system
Installation of the Multi-System