Boiler Piping Installation
8
GENERAL REQUIREMENTS
-
All plumbing must meet or exceed local, state or
national plumbing codes.
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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
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Use isolation valves to isolate the Mini SMART
and system components.
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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-
gram.
-
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.
Do not use automotive, ethylene glycol or petrole-
um-based antifreeze. Do not use any undiluted
antifreeze. This can cause severe personal injury,
death or substantial property damage.
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
