LAARS Heating Systems
Page 36
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..
SECTION 4. Installation
PRIMARY LOOP
CH SUPPLY
(SPACE HEATING)
DHW INLET
DHW OUTLET
ZONE 1
ZONE 2
ZONE 3
FLOOR HEATING
SECONDARY LOOP (SPACE HEATING)
Do not exceed 12" apart
Circulation pump
Check valve
Drain valve
Gate valve
Backflow preventer
Expansion tank
Air separator
(Diaphragm-type)
Automatic air vent
Pressure Relief Valve
TO DR
AIN
TO DR
AIN
