Velocity Raptor RPTR155, Installation And Operating Instructions Manual, Page: 163 / 172

163
Appendix C - (continued)
IV
– Introduction
1. Parts Included: 3 copper pipe assemblies, thermostatic mixing valve, flow switch, and miscellaneous parts bag.
2. Install boiler per installation instructions. Attach supply and return piping at bottom of jacket (See Figure C.1).
3. Install 30psi relief and air vent at top of boiler shown in Figure C.2. Please note there is no top and bottom supply/return
connection available on combi 155 boiler, only bottom supply and return piping.
4. Install DHW piping included in miscellaneous parts carton. See pages 165 and 166 for DHW pipe assembly. Correctly
pipe domestic side in/out connections using check valve, relief valve, and expansion tank as described in Figure C.2.
5. Complete wiring and system connections. See page 166.
6. Adjust mixing valve. See page 167.
Figure C.1: Combi Piping Assembly Outside of Jacket