Zoned With Valves - Pavilion PV199DV Installation Manual

18.3 Zoned with Valves

This drawing is meant to show system piping concept only. Installer is responsible for all equipment & detailing
required by local codes. Refer to page 51 for electrical wiring instructions.
* In case of installing external water feeder.
PRESSURE
REDUCING VALVE
BACKFLOW
PREVENTER
MAKE UP WATER
AIR SEPARATOR
BALL VALVE
(TYPICAL)
PRESSURE
GAUGE
EXTERNAL
PUMP
EXPANSION
TANK
Not to install an external pump upstream
an expansion tank in heating supply pipe.
Not to exceed 4 pipe Dia or Max. 12 in. APART
Heating
Return
Heating Supply
[I:09 EP] should be
"ON" in lnstaller Mode to
activate this terminal.
[CN237]
Pump
EXTERNAL
PUMP
[CN233]
T - T
ZONE 1 ZONE 2 ZONE 3
Optional LWCO
(See on the page 44)
Recommended Pressure Setting: 15-30 psi
T/T T/T
ZONE1 ZONE2
ZONE CONTROLLER
ZONE1 ZONE2
ZONE ZONE
T/T
VALVE VALVE
Additional Zone
ZONE VALVES
(TYPICAL)
DHW Cold Water Supply
DHW Supply
Auto Feeder
T/T
ZONE3
ZONE3
ZONE
VALVE
Plumbing Applications
75