dkmc
Diamond
- Joined
- Jan 13, 2002
Heads up.....
Installed a new boiler at the shop about 6 weeks ago, Peerless Pinnacle boiler and 2 Bell & Gossett
NRF-36 circulator pumps.
There is an inner and outer boiler loop, the pump on the inner loop seems fine. The pump on the outer loop made 'bushing' noises as soom as it was powered up. Seemed most noticeable on low speed, but 'ok' on speed 2 and 3. I ended up running it on speed 1, and I chalked it up to 'it'll wear in after a bit'....
So, last week one evening there was no heat, thermostats calling for heat, opened up the enclosure, and the damn pump was stopped.
Motor very hot. No place to get any parts, so I beat on the casting with a dead blow hammer till it let out a squeak, and started running.
WTF????
All ok till Thursday evening, then NO heat again.
Pump locked up....again.
I wired a zip cord to it and plugged it in for continuous run...for the time being, as starting seemed to be the problem.
Got a new pump friday afternoon, bench tested it Saturday morning. First start, ok. Plugged it back in, NO start! The impeller has a tight spot in it.
The tag says 'Designed in USA-Made In China'.
I've had it with Bell & Gossett and their china POS pumps.....the first pump could have started a fire if I didn't find it soon enough.
The second time it must have been 'on' and stalled a bit longer because it was extremely hot and was beginning to smell that 'cooking electrical parts' smell.
I hate to do it, but I have to break open the system for the 1 bad pump, so I'm thinking I'll replace both with possibly Grundfoss units and all
3 of the B&G sCRAP units are going back.
The Toco brand pumps look like the same POS MIC
pumps as the B&G units.
This all seems similar to the china coolant pumps out there. Graymills puts their name on them, ENCO sells the same thing for 1/3 the price.
Quality: JUNK on both counts.
dk
Installed a new boiler at the shop about 6 weeks ago, Peerless Pinnacle boiler and 2 Bell & Gossett
NRF-36 circulator pumps.
There is an inner and outer boiler loop, the pump on the inner loop seems fine. The pump on the outer loop made 'bushing' noises as soom as it was powered up. Seemed most noticeable on low speed, but 'ok' on speed 2 and 3. I ended up running it on speed 1, and I chalked it up to 'it'll wear in after a bit'....
So, last week one evening there was no heat, thermostats calling for heat, opened up the enclosure, and the damn pump was stopped.
Motor very hot. No place to get any parts, so I beat on the casting with a dead blow hammer till it let out a squeak, and started running.
WTF????
All ok till Thursday evening, then NO heat again.
Pump locked up....again.
I wired a zip cord to it and plugged it in for continuous run...for the time being, as starting seemed to be the problem.
Got a new pump friday afternoon, bench tested it Saturday morning. First start, ok. Plugged it back in, NO start! The impeller has a tight spot in it.
The tag says 'Designed in USA-Made In China'.
I've had it with Bell & Gossett and their china POS pumps.....the first pump could have started a fire if I didn't find it soon enough.
The second time it must have been 'on' and stalled a bit longer because it was extremely hot and was beginning to smell that 'cooking electrical parts' smell.
I hate to do it, but I have to break open the system for the 1 bad pump, so I'm thinking I'll replace both with possibly Grundfoss units and all
3 of the B&G sCRAP units are going back.
The Toco brand pumps look like the same POS MIC
pumps as the B&G units.
This all seems similar to the china coolant pumps out there. Graymills puts their name on them, ENCO sells the same thing for 1/3 the price.
Quality: JUNK on both counts.
dk