Owner manual
Boiler Piping Installation
8
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-
All plumbing must meet or exceed local, state or
national plumbing codes.
- Support all piping using hangers. DO NOT sup-
port piping by the unit or by system components
- Install unions for easy removal of the Mini
SMART from the system piping
- Use isolation valves to isolate the Mini SMART
and system components.
- If plastic pipe is used for boiler water piping, it
must have a maximum oxygen diffusion rate of
0.1 mg/liter-day.
- Boiler water (including additives) must be practi-
cally non-toxic, having a toxicity rating or Class
of 1, as listed in Clinical Toxicology of
Commercial Products.
- Reference Fig. 4 for a typical boiler piping dia-
g
ram.
- Reference the PRESTIGE Boiler Installation
Manual for additional information and require-
ments regarding boiler piping.
If antifreeze is used in the boiler system, local codes
may require a backflow preventer on the domestic cold
water supply piping. Use antifreeze specifically intend-
ed for hydronic heating systems. Inhibited propylene
glycol is recommended at a maximum 50/50 mixture.
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DANGER
1. PRESTIGE boiler
2. Mini SMART
3. Isolation valve
4. DHW circulator
5. CH circulator (provided)
6. Flow/check valve
7. Pressure relief valve
8. Drain/purge valve
1
7
5
2
3
6
3
4
Supply
System
System
Return
8
8
Fig. 4: Boiler Piping - PRESTIGE Solo 110 with a Mini Smart