lp-505 Rev. 000 Rel. 015 Date 1.7.20
19
2. The expansion tank must be located as shown in Applications, this manual, or following recognized design methods. See expansion tank
manufacturer’s instructions for details.
D. Piping the Water Heater
Use both thread tape and pipe dope to connect to the 3/4” domestic water inlet and outlet, and recirculation inlet (if applicable). Tankless
isolation valves between the city water supply and tank inlet are recommended for ease of service.
Use at least the MINIMUM pipe size for all water heater loop piping This is to avoid the possibility of inadequate flow through the water
heater. Using less than the required minimum pipe size and piping could result in system problems, property damage, and premature water
heater failure. Such problems ARE NOT covered by product warranty.
E. Applications
Figure 7 - Piping Symbol Legend
DO NOT use this water heater for high temperature (over 140
o
F) central heating applications. Failure to comply will result in substantial
overworking of the appliance and possibly lead to early appliance failure and property damage. Use of the water heater for high temperature
central heating applications WILL VOID the warranty.
Summary of Contents for Hydra Smart RT-199
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Page 42: ...lp 505 Rev 000 Rel 015 Date 1 7 20 42 Figure 40 199 Model Electrical Wiring Diagram ...
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