I have two questions about these little condenser fan motors. Non relate to any one specific unit, just a broad discussion.
There are usually at least 4 or 5 of these motors in every restaurant I work in. Nearly all are 115 volt. The difference is usually only in rotation (cw/ccw) and wattage (6/9). Space is limited on my truck. I think even if I drove a semi as a work truck I wouldn't have everything I need every time. So to conserve space I'd like to start stocking only the 9 watt motors in each rotation.
Is there a problem with putting a 9 watt motor in the place of a 6 watt? I can't see why a little more power to spin a fan blade would be a problem. It may spin a few rpm faster due to a smaller load but that can't hurt anything. Heck, most of these kitchens run in the high 80's* so more air to the coil would be a good thing.
My second question has to do with wiring these condenser fan motors to run non stop. A lot of places cram units so tight together that they are often recirculating air or just not getting enough. Customers would rather pay for the bi-yearly compressor than move the unit to a place with more air flow. Also, there are a lot of built-ins where they stuff the condensing units anywhere they can put them, paying no attention to the available air.
Sometimes I install little axial fans to run continually and draw the hot air out. That has served me very well over the years. But instead of going through that trouble could I just wire the condenser fan motor to run 100% of the time? I think coils might get dirty faster but other than that the refrigeration should all still be fine. I think? I have been told many times over the years that an electric motor endures the most stress every time they start up. True? If so, would these little motor last longer if they ran all the time?
There are usually at least 4 or 5 of these motors in every restaurant I work in. Nearly all are 115 volt. The difference is usually only in rotation (cw/ccw) and wattage (6/9). Space is limited on my truck. I think even if I drove a semi as a work truck I wouldn't have everything I need every time. So to conserve space I'd like to start stocking only the 9 watt motors in each rotation.
Is there a problem with putting a 9 watt motor in the place of a 6 watt? I can't see why a little more power to spin a fan blade would be a problem. It may spin a few rpm faster due to a smaller load but that can't hurt anything. Heck, most of these kitchens run in the high 80's* so more air to the coil would be a good thing.
My second question has to do with wiring these condenser fan motors to run non stop. A lot of places cram units so tight together that they are often recirculating air or just not getting enough. Customers would rather pay for the bi-yearly compressor than move the unit to a place with more air flow. Also, there are a lot of built-ins where they stuff the condensing units anywhere they can put them, paying no attention to the available air.
Sometimes I install little axial fans to run continually and draw the hot air out. That has served me very well over the years. But instead of going through that trouble could I just wire the condenser fan motor to run 100% of the time? I think coils might get dirty faster but other than that the refrigeration should all still be fine. I think? I have been told many times over the years that an electric motor endures the most stress every time they start up. True? If so, would these little motor last longer if they ran all the time?
