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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

Summary of Contents for 00e VT2218 Series

Page 1: ...one Valve Control or SR Switching Relay for ON OFF operation Integral Flow Check IFC is included in carton Simply press into discharge flange if required Nut capture feature on flanges for easier fit up Whisper quiet operation BIO Barrier protects the pump from system contaminants SureStart automatic unblocking mode Optional 2 way flange model available to reduce SKU s and provide universal fit up...

Page 2: ...E 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 ...

Page 3: ... 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 PRES SURE IF REQUIRED 10 MOVE ALL ZV TO CLOSED AUTOMATIC POSITION ...

Page 4: ...rential T Set Point Heat Varies speed to maintain a fixed temperature Boiler Protection Option Decreases speed to protect boiler from low return water temperature and flue gas condensation Boiler Protection Increases speed to protect boiler from low return water temperature and flue gas condensation Heating or Chilled Water Cooling Set Point Heat Decreases speed on temperature rise Set Point Cool ...

Page 5: ...ta T operating mode with a 20 F temperature differential setting If this is your desired operating mode and Delta T setting no programming changes are required CAUTION Never run the circulator dry or permanent damage may result ATTENTION Ne laissez jamais le circulateur tourner à sec des dommages permanents peuvent en résulter The VT2218 has 5 Operating Modes Delta T Varies speed to maintain a fix...

Page 6: ...Start Cycle to its highest speed until target T is reached Start Cycle will dis play on the LCD screen in place of Watts If T is GREATER than target the pump will immediately go into Variable Speed operation and vary speed to maintain the target T Constant Speed Mode Speeds 1 2 3 4 default Speed 4 In Constant Speed mode the VT2218 will always start and run at the pre set Speed Level 1 through 4 On...

Page 7: ...n ERROR CODE DESCRIPTION CORRECTIVE ACTION SENSOR 1 MISSING Supply sensor disconnected Reconnect sensor SENSOR 2 MISSING Return sensor disconnected Reconnect sensor SENSOR 1 SHORTED Bad sensor Replace sensor SENSOR 2 SHORTED Bad sensor Replace sensor AC INPUT UNDER VOLTAGE Low voltage problem Check power supply AC INPUT OVER VOLTAGE High voltage problem Check power supply LOCKED ROTOR Probable loc...

Page 8: ...t or for any application restrictions consult the applicable Taco instruction sheets or contact Taco at 401 942 8000 Taco reserves the right to provide replacement products and parts which are substantially similar in design and functionally equivalent to the defective product or part Taco reserves the right to make changes in details of design construc tion or arrangement of materials of its prod...

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