20
LP-454 REV. 1.6.15
Figure 6
– Phoenix with Recirculation Line and Thermostatic Mixing Valve
NOTES:
1. Minimum pipe size should match unit connection size. Upsize pipe accordingly if greater flow is required.
2. A thermal expansion tank suitable for potable water must be sized and installed within this piping system between the backflow preventer and the cold
water inlet.
3. Gas line must be rated to the unit maximum input capacity. Unit must have 10 feet of pipe after gas regulator.
4. All circulators should have an integral flow check.
5. Drains and check valve between unit and storage tank will assist in purging air from system.
6. This drawing is meant to demonstrate system piping only. The installer is responsible for all equipment and detailing required by local codes. In
Massachusetts, you must install a vacuum relief valve per 248 CMR.
The piping will not support the weight of the water heater circulator pump. Refer to the pump manufacturer’s installation instructions to
properly support the circulator pump. Failure to comply with these instructions could result in substantial property damage, severe
personal injury, or death.
Summary of Contents for phoenix plus PHP199-119
Page 32: ...32 LP 454 REV 1 6 15 Figure 15...
Page 37: ...37 LP 454 REV 1 6 15 C INTERNAL WIRING DIAGRAM Figure 21 Stage 1 Wiring Diagram...
Page 38: ...38 LP 454 REV 1 6 15 Figure 22 Stage 2 Wiring Diagram Not Applicable to 199kBTU Models...
Page 39: ...39 LP 454 REV 1 6 15 Figure 23 LP 179 L...
Page 48: ...48 LP 454 REV 1 6 15 Figure 26 LP 454 W...
Page 49: ...49 LP 454 REV 1 6 15 Figure 27 LP 454 Y...
Page 50: ...50 LP 454 REV 1 6 15 Figure 28 LP 454 X...
Page 53: ...53 LP 454 REV 1 6 15...
Page 54: ...54 LP 454 REV 1 6 15...