BOOSTERS, BACKFLOW, AND LEGIONELLA SERIES
1) Superb Support
When we switched our water pressure booster pump controls to Yaskawa Variable Frequency Drives (VFD’s), Bob Twohill was invaluable, as he was very patient with us as we learned all about the Yaskawa VFD’s. Yaskawa did not miss a step when Jordan Engle took over our territory. As an electrical engineer, not only does Jordan help us with odd questions, but he understands pumps inside and out. The factory personnel are always helpful, and any troubleshooting is handled promptly.
2) Quality, Quality, Quality
3) Lots of Options:
We use three different VFD’s, depending on the client, application, etc.
iQ1000: When we first started with Yaskawa in 2013, we cut our teeth on the iQ1000. It’s a robust VFD, full of more features than we usually need, including complete BMS/BAS modules (BACnet, Modbus, etc.). But what we found is most clients don’t need all of the bells and whistles of a complete BMS/BAS card.
iQ Micro: The Micro has all of the parameters that our clients usually need, and includes digital and analog outputs to satisfy basic BMS/BAS requirements. The smaller sizes are small, so you don’t want any fat fingers on the production line.
NEMA-4: We build a lot of systems for outdoor use, so the NEMA-4 Micro was a great addition to the line.
4) Easy to Program
5) Easy to Network
The ability to network multiple VFD’s (red arrow) provides our clients:
- Huge savings by eliminating the PLC and UL508 panel.
- Equal pump “wear and tear” when scheduled on 24-hour run-time alternation.
- Ability for each VFD to read other 4-20mA transducers on “network”, in the case of a pump’s failed transducer.
6) Great Inventory = Fast Fill Rates
7) High Temperature Ratings
Speaking of the NEMA4-Micro, our outdoor roof-top units usually end up in very hot climates (Phoenix, Yuma, Las Vegas, LA). A 104°F (40°C) rating won’t cut it, but Yaskawa VFD’s give us the ability to de-rate the VFD all the way up to 122°F+ (50°C). And sometimes we need a high rating for a hot mechanical room.
8) Clients request Yaskawa
We have enough confidence in Yaskawa that it’s the ONLY VFD we use on our multi-plex systems. Unfortunately, when customers require other name-brand VFD’s, we usually walk from the job. It’s not that we don’t want the business; there are a lot of really good VFD’s in the market. It’s the fact that we’ve built our business on exceptional customer service. So when we have to troubleshoot a call, we need to know the VFD forwards and backwards. Even if it’s a Friday night, or Sunday morning, or holiday; we need to have the confidence in our troubleshooting, even without a manual.