Use and Care Manual

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III. INDIRECT WATER HEATER PIPING
A. CONNECT Indirect Water Heater Piping as shown in Figure 13. Refer to Indirect Water Heater Instruction Manual for
additional installation information.
Figure 13: Indirect Water Heater Piping on RRO Series Water Boiler
RRO Series Water Boiler - Figure 13 shows indirect water heater piping on typical hot water heating system. Boiler
piping is the same as for any two-zone system. Figure 13 shows circulator zoning, which is usually preferred for indirect
water heaters. Size the circulator and indirect water heater piping to obtain the boiler water ow through the indirect
water heater called for by the indirect water heater manufacturer. Refer to the indirect water heater instruction manual for
additional details.