Taco Viridian VR1816 Instruction Sheet Download Page 6

CAUTION: Do not attempt to remove LED panel from circulator. Serious damage to circulator electronics may
result.
ATTENTION: N'essayez pas de retirer le panneau de LED du circulateur. Des dommages s

é

rieux à l'électron-

ique du circulateur peuvent en r

é

sulter.

6

5

10

15

Max

Q(gpm)

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

H (ft)

0

2

4

6

8

10

12

14

16

18

20

Q (l/s)

0.0

0.2

0.4

0.6

0.8

1.0

1.2

H (m)

0

1

2

3

4

5

6

Q (m

3

/h)

4

3

2

1

0

008
0015 – Med

007
0015 – Low

006

Flow

H

e

a

d

 i

n

 F

e

e

t

CONSTANT PRESSURE MODE (     ) – Variable Speed

In Constant pressure mode (     ), the circulator maintains a constant pressure differential (

p-c) in the system as heating load

increases or decreases. Selection options are 5, 10, or 15 feet of head constant pressure. Seee chart above for equivalent 00
model at each setting.

Low

Med

High

Max

Q(gpm)

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

H (ft)

0

2

4

6

8

10

12

14

16

18

20

Q (l/s)

0.0

0.2

0.4

0.6

0.8

1.0

1.2

H (m)

0

1

2

3

4

5

6

Q (m

3

/h)

4

3

2

1

0

Flow

H

e

a

d

 i

n

 F

e

e

t

PROPORTIONAL/VARIABLE PRESSURE MODE (     ) – Variable Speed

In Proportional/variable pressure mode (     ), the circulator maintains a proportional pressure differential (

p-v) as heating load

increases  or  decreases.  Flow  will  change  in  relationship  to  the  change  in  pressure  differential.  Selection  options  are  Low,
Medium, or High. If unsure on proper setting, select Medium and adjust as needed.

Orange

LED

Green

LED

Summary of Contents for Viridian VR1816

Page 1: ... a Taco ZVC Zone 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 INSTALLATION WARNING Do not use in swimming pool or spa areas Pump has not been investigated for these applications AVERTISSEMENT Ne pas utiliser dans une pisci...

Page 2: ...ONE 1 ZONE 2 V2 V2 V3 V3 P P ZONE 3 ZONE 3 V2 V3 P AIR PURGING SEQUENCE BY ZONE LAST FIRST 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 PU...

Page 3: ...GING SEQUENCE BY ZONE LAST FIRST P P ZV3 ZV2 ZV1 M ZV1 ZV2 ZV3 M M M M M 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...

Page 4: ...g may be rotated to change flow direction Locate the arrow on the casing body to determine flow direction CAUTION To reduce the possibility of noise transmission be sure to add vibration dampeners to piping when mounting circulator to wall or floor joists ATTENTION Pour réduire la possibilité de transmission de bruit veillez à ajouter des amortisseurs de vibration à la tuyauterie lors du montage d...

Page 5: ...eristics of the heating system in question and the actual heat demand 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 VR1816 has 3 Operating Modes Fixed Speed Infinitely adjustable settings min max Constant Pressure Varies speed to maintain a constant pressure differential P...

Page 6: ...ure differential p c in the system as heating load increases or decreases Selection options are 5 10 or 15 feet of head constant pressure Seee chart above for equivalent 00 model at each setting Low Med High Max Q gpm 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 H ft 0 2 4 6 8 10 12 14 16 18 20 Q l s 0 0 0 2 0 4 0 6 0 8 1 0 1 2 H m 0 1 2 3 4 5 6 Q m 3 h 4 3 2 1 0 Flow Head in Feet PROPORTIONAL VARIABL...

Page 7: ... The circulator performance is too low Increase the suction head Increase speed or P setting Unlocking Procedure A red light in the LED indicates the circulator is locked or sticking Turn the selector to the position MAX disconnect and con nect power supply to start the automatic release process The circulator makes 100 attempts to restart process lasts approx imately 15 minutes Every restart is s...

Page 8: ... of its products without notification TACO OFFERS THIS WARRANTY IN LIEU OF ALL OTHER EXPRESS WARRANTIES ANY WARRANTY IMPLIED BY LAW INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS IS IN EFFECT ONLY FOR THE DURA TION OF THE EXPRESS WARRANTY SET FORTH IN THE FIRST PARAGRAPH ABOVE THE ABOVE WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR STATUTORY OR ANY OTHER WARRANTY OBLIGATION ON THE ...

Reviews: