UTICA BOILERS Trifire 3 Series Installation, Operation & Maintenance Manual page 24

Figure 20 - Piping And Wiring Multizone System With Zone Valves And Domestic Hot Water
Priority (With Circulator)
10 - HYDRONIC PIPING
24 VAC
120 VAC
TO XFRM
PRIMARY PRIORITY
120VAC
PUMP PUMP
24
STATUS
PRIORITY ON
PRIMARY PUMP
PRIORITY PUMP
X-X CONTACT
ZR ON
FROM BOILER
PN 240013415 REV A [08/15/2021]
ZONE VALVE / PUMP
PRIORITY
ZR-ZC
DPM-2
OPTION SWITCHES
ZONE VALVE / PUMP
PRIORITY
ZR-ZC
DPM-2
OPTION SWITCHES