Install Instructions

BOILER
FF
EXPANSION
TANK
ZONE 1ZONE 2
V1
PV4
FIGURE 1:
MULTI-SPEED MODE
PREFERRED PIPING
FOR CIRCULATORS
ON BOILER SUPPLY
ZONE 1
V2
V3
P
ZONE 3
ZONE 2
V2
V3
P
ZONE 3
V2
V3
P
• AIR PURGING SEQUENCE
BY ZONE
LAST FIRST
BOILER
FF
EXPANSION
TANK
ZONE
1
ZONE
2
V1
PV4
ALTERNATE PIPING
FOR CIRCULATORS
ON BOILER RETURN
ZONE 1ZONE 2
V2V2
V3V3
PP
ZONE
3
ZONE 3
V2
V3
P
• AIR PURGING
SEQUENCE
BY ZONE
LAST FIRST
BOILER
FF
EXPANSION
TANK
ZONE 1ZONE 2
V1
PV4
FIGURE 1:
MULTI-SPEED MODE
PREFERRED PIPING
FOR CIRCULATORS
ON BOILER SUPPLY
ZONE 1
V2
V3
P
ZONE 3
ZONE 2
V2
V3
P
ZONE 3
V2
V3
P
• AIR PURGING SEQUENCE
BY ZONE
LAST FIRST
BOILER
FF
EXPANSION
TANK
ZONE
1
ZONE
2
V1
PV4
ALTERNATE PIPING
FOR CIRCULATORS
ON BOILER RETURN
ZONE 1ZONE 2
V2V2
V3V3
PP
ZONE
3
ZONE 3
V2
V3
P
• AIR PURGING
SEQUENCE
BY ZONE
LAST FIRST
2
KEY:
VI, V2, V3 = SHUT-OFF ISOLATION VALVE
P = TACO CIRCULATOR WITH IFC
FF = FAST FILL BOILER FEED VALVE
PV4 = PURGE VALVE
RECOMMENDED PURGING STEPS:
1. CLOSE V1, PV4, V2
2. OPEN V3
3. OPEN FF VALVE
4. OPEN V2, PV4, TO PURGE LAST ZONE
FIRST (ZONE 3)
5. CLOSE FF VALVE
6. CLOSE V2, PV4
7. REPEAT STEPS 1 TO 6 FOR EACH
ADDITIONAL ZONE, PURGE ZONE 1 LAST
8. OPEN V1 WHEN ALL ZONES ARE PURGED
9. ADJUST SYSTEM TO DESIRED OPERATING
FILL PRESSURE IF REQUIRED
Figure 2:
BOILER
FF
EXPANSION
TANK
ZONE 1ZONE 2
V1
PV4
FIGURE 2:
MULTI-SPEED OR VARIABLE SPEED MODES
PREFERRED PIPING
FOR ZONE VALVES
ON BOILER SUPPLY
ZONE 1
V2
V3
ZONE 3
ZONE 2
V2
V3
ZONE 3
V2
V3
• AIR PURGING SEQUENCE
BY ZONE
LAST FIRST
BOILER
FF
EXPANSION
TANK
ZONE
1
ZONE
2
V1
PV4
ALTERNATE PIPING
FOR ZONE VALVES
ON BOILER RETURN
ZONE 1ZONE 2
V2V2
V3V3
ZONE
3
ZONE 3
V2
V3
• AIR PURGING
SEQUENCE
BY ZONE
LAST FIRST
P
P
ZV3 ZV2 ZV1
M
ZV1 ZV2 ZV3
M
M
M
M
M
Figure 3:
KEY:
VI, V2, V3 = SHUT-OFF ISOLATION VALVE
P = TACO CIRCULATOR WITHOUT IFC INSTALLED
FF = FAST FILL BOILER FEED VALVE
PV4 = PURGE VALVE
ZV = ZONE VALVE
RECOMMENDED PURGING STEPS:
1. CLOSE V1, PV4, V2
2. OPEN V3 AND ZV3
3. OPEN FF VALVE
4. OPEN V2, PV4, TO PURGE LAST ZONE
FIRST (ZONE 3)
5. CLOSE FF VALVE
6. CLOSE V2, PV4
7. REPEAT STEPS 1 TO 6 FOR EACH
ADDITIONAL ZONE, PURGE ZONE 1 LAST
8. OPEN V1 WHEN ALL ZONES ARE PURGED
9. ADJUST SYSTEM TO DESIRED OPERATING
FILL PRESSURE IF REQUIRED
10. MOVE ALL ZV TO CLOSED/AUTOMATIC POSITION
BOILER
FF
EXPANSION
TANK
ZONE 1ZONE 2
V1
PV4
FIGURE 2:
MULTI-SPEED OR VARIABLE SPEED MODES
PREFERRED PIPING
FOR ZONE VALVES
ON BOILER SUPPLY
ZONE 1
V2
V3
ZONE 3
ZONE 2
V2
V3
ZONE 3
V2
V3
• AIR PURGING SEQUENCE
BY ZONE
LAST FIRST
BOILER
FF
EXPANSION
TANK
ZONE
1
ZONE
2
V1
PV4
ALTERNATE PIPING
FOR ZONE VALVES
ON BOILER RETURN
ZONE 1ZONE 2
V2V2
V3V3
ZONE
3
ZONE 3
V2
V3
• AIR PURGING
SEQUENCE
BY ZONE
LAST FIRST
P
P
ZV3 ZV2 ZV1
M
ZV1 ZV2 ZV3
M
M
M
M
M