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Frequently Asked Questions
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Q. What effect does ethylene glycol or propylene glycol have on pumps?

Q. What is the minimum speed of the motor of a pump controlled by a variable speed drive?

Q. Does Taco make a self-priming pump?

Q. Can standard pump seals (ethylene propylene, carbon on ceramic) be used when pumping ethylene or propylene glycol?

Q. What type of motor should be used with a variable speed drive?

Q. Do I need an Inverter Duty Motor when my pump and motor assembly are controlled by a Variable Speed Drive?

Q. What flexible coupling should be used on my frame mounted pump when a variable speed drive is controlling the motor?

Q. Is the location of the pump important in relation to the expansion tank and boiler?

Q. What is the difference between a JP and a JM frame motor?

Q. What happens to the performance of pumps when they are piped in parallel or in series?

Q. When selecting a pump, do I include the head required to get the water to the top of the system?

Q. I am instaling a hydronic system utilizing the Taco 006 pump. The loop configuration makes placing the pump on the supply rather than the return much easier. Can the BT6 004 bronze pump be used at the supply side with 160º water temperature without adversely affecting pump performance or useful life?

Q. Can I run my “00” Series pump at 50 Hz with 115 V?

Q. I have a 008-V2 pump on my solar system. Do you still make this pump?

Q. What does a 007-BF5-J mean?

Q. Is there a replacement cartridge for the 007-F1 or 007-1?

Q. Can a "00" Series pump be used for a swimming pool application?

Q. What circulator will replace the old 150, 152, & 195?

Q. What was the –1 pump?

Q. Will a 007-F5 replace a 007-F2 circulator?

Q. How do you set the 24-hour timer?

Q. I have a 007 pump. How much will it pump?

Q. Why does the seal leak when the pump runs, and stop leaking when the pump stops?

Q. I am using a 008-S7 pump in a solar heating system without flanges. What do I cross it to?

Q. I have a solar water heating system with a Taco 008-V2 circulator. Where can I get a replacement for the cartridge and motor?

Q. I have a 006-B2 pump that is not working properly. My electric water heater is 2 years old and the water coming out of the outlets is not hot.

Q. What procedure should be followed when purging air from a loop that has an IFC circulator?

Q. I have a 006-B4 in a solar hot water system. It's less than 2 years old, and the impeller keeps getting stuck.

Q. I have had recurring failures of the Taco 007 Circulating Pump over the last several years. Any thoughts?

Q. Are the CI and bronze 00 circulators both furnished with Norel impellers?

Q. My house has five zones, each with its own circulator. Hot water is passing into zones that are not calling for heat. Do I have some defective circulators?

Q. I want to install a hot water recirculation pump that could be conveniently turned on and off.

Q. I read that the 008DM can be installed at the water heater on new construction projects. How does that work?

Q. Is additional support required for the 1600 Series circulators? We have a 1641 which is being supported with a hanger under the motor.

Q. What is the difference between NPSHA and NPSHR?

Q. Under nominal steady-state pumping conditions, what is the power factor of the 007 circulator?

Q. What procedure should be followed when selecting a cartridge circulator?

Q. I have a 007 Pump that came with two circular gaskets. I was told to install it with the gasket in the groove of the pump, and to use a second, larger gasket which is in the shape of the flange, on top of it. Is this correct?

Q. What is a good circulator for an injection pump application?

Q. I have a Taco 009 circulator pump with the motor mounted in the vertical position. A constant, low-pitched humming (reciprocating) is heard through the rooms fed by that heating loop. Should the pump be re-oriented?

Q. My home has 2 heating zones with one B&G 100 pump. There is about 140 feet of baseboard on the first floor. Will the 007 pump work for us or should we get the 110?

Q. Do you have any data on putting two 009 in series or possibly combining the 009 in series with another circulator to boost head and flow rates?

Q. I need a pump that would give me 50 ft. of head at 5 gpm. and 68 ft. at 5 gpm.

Q. How should a single pipe hydronic system be installed in a 1200 sq. ft. home with baseboards?

Q. I have a circulating pump, model 6-BCF, that stopped working. It does nothing when plugged in, but gets very hot. Do I have to replace the whole pump or only a part?

Q. Can you provide me with noise data for the FI3013 and FI3009 Pumps?

Q. What is the procedure for plotting the performance curve of a pump if you have a diameter and it falls between 2 known diameter impeller cuts?

Q. I need a pump for a drain-down solar hot water system. Is the Taco 007 the right selection for a 12 foot head?

Q. Can I, just a homeowner, install a 007-045rp myself?

Q. I changed out my old boiler and the contractor installed the Taco 007 circulator that was packaged with the boiler. My house is still cold in the winter. What could be the cause?

Q. When calculating system resistance, how much pipe should be added for elbow fittings?

Q. My Aquastat does not turn on and off accurately. Do I have a bad unit?

Q. What is the difference between LoadMatch Circulators and "OO--IFC" series circulators?

Q. Is this an interchangeable cartridge. My system has been in for a while now with no problems till now.

Do they usually come apart easily or should I replace the entire pump housing?

Q. Our hydronic heating system includes a Taco cartridge circulator model 009-BFS. Can I use a rheostat to control the flow rate of that pump?

Q. My 00 Series Circulator Motor housing is hot to the touch. Is it OK?

Q. Can the 00 Series circulator operate in reverse if the lead wires are reversed?

Q. If my RMB is set up in the Delta T mode can I control the temperature to a fixed temperature?

Q. How to correctly mount a "00" series circulator

Q. My "00" series circulator is on but I am not getting hot water