Mascot FT, Heating Only, Boiler
Page 43
Do not exceed 12" apart
PRIMARY LOOP
SECONDARY LOOP (SPACE HEATING)
CH SUPPLY
(SPACE HEATING)
PRIMARY/SECONDARY
CONNECTION
ZONE 1
ZONE 2
ZONE 3
FLOOR HEATING
CH RETURN
Circulation pump
Pressure relief valve
Expansion tank
Air separator
(Closed type)
Isolation valve
Check valve
Gate valve
4.14 Plumbing Guidelines
Zoning with circulation pump
- Each heating zone of a pump based system has its own circulator pump which runs when the zone needs it.
- Each zone thermostat goes to a controller which controls the pumps.
Figure 10. Plumbing Diagram using zones and circulation pumps
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