Taco Viridian VR1816 Instruction Sheet

Infinitely Variable Speed, ECM High-Efficiency Circulator
SUPERSEDES: New
Plant ID No. 001-4230
DESCRIPTION:
The Viridian VR1816 circulator is an infinitely variable speed wet rotor circulator
with an ECM, permanent magnet motor. Operating modes include infinitely
adjustable fixed speed or self-adjusting proportional or constant pressure variable
speed. Its high efficiency motor reduces power consumption by up to 85% com-
pared to equivalent C permanent split capacitor circulators.
PPLIC TION:
• Maximum operating pressure: 145 psi
• Maximum water temperature: 230°F (110ºC)
• Electrical specifications:
Voltage: 110-120V, 50/60 Hz, single phase
Maximum operating power: 44W
Maximum amp rating: 0.54
• Equipped with a cast iron casing and should be used for closed
loop systems only.
• Taco circulator pumps are for indoor use only – employer uniquement a
l'interieur.
• cceptable for use with water or maximum of 40% water/glycol solution.
FE TURES:
• 3 operating modes:
- Fixed speed ( ) - infinitely adjustable min/max settings
- Constant pressure (
- Proportional pressure (
• Multi-color LED display showing operating mode and error code diagnostics.
• Use with 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.
INST LL TION:
W RNING: Do not use in swimming pool or spa areas. Pump has not been investigated for these applications.
VERTISSEMENT: Ne pas utiliser dans une piscine ou un spa. La pompe n'a pas été étudiée pour ces applications.
C UTION: The addition of petroleum based fluids or certain chemical additives to systems using T CO equipment
voids the warranty. Consult factory for fluid compatibility.
TTENTION: L'ajout de liquides à base de pétrole ou de certains additifs chimiques à des systèmes utilisant un
équipement T CO annule la garantie. Consultez le fabricant pour connaître la compatibilité de liquides.
C UTION: Installations at elevations over 5000 feet must have higher fill pressure of 20 psi minimum to prevent
pump cavitation and flashing. Premature failure may result. djust expansion tank pressure to equal fill pressure.
larger size expansion tank may be required.
TTENTION: Des installations à des altitudes de plus de 1600 mètres doivent présenter une pression de remplissage
plus élevée de 20 psi au minimum afin d'éviter toute cavitation ou flashing de la pompe. Une défaillance prématurée
peut en résulter. Réglez la pression du réservoir d'expansion de façon qu'elle soit égale à la pression de remplis-
sage. Un réservoir d'expansion d'une taille supérieure peut être nécessaire.
Viridian VR1816
nstruction Sheet
), variable speed - 3 constant pressure differential curves (5, 10, or 15 feet of head)
), variable speed - 3 variable pressure differential curves (High, Med, or Low)
102-499
EFFECTIVE: ugust 1, 2014