How can I tell if my Grundfos pump is working?
If you think you have a problem with your pump, try lightly touching it. If it’s working properly there will be a slight vibration and it will be warm to the touch. If your pump isn’t working, turn off its power supply and get a cloth and a screwdriver.
How do I adjust my Grundfos Comfort pm?
Grundfos Comfort PM Pumps with AUTOADAPT You can change the pump settings any time you wish by simply pushing the arrow button on the face of the pump with the tip of your finger.
How do comfort valves work?
Comfort valve hot water circulators utilize a pump installed at the water heater connected to the hot water supply pipe. By design, these pumps must run continuously (continuous energy consumption) to prevent the “normally-open” thermostatic valve from opening.
How do you bleed air from a circulating pump?
- Step 1 – Turn off the power.
- Step 2 – Protect against water damage.
- Step 3 – Turn off the water at the shut-off and gat valve.
- Step 4 – Slowly remove the pump bleed screw.
- Step 5 – Mop up all the water that trickles out of the pump.
- Step 6 – Screw the bleed screw back into place.
- Step 7 – Turn on the power.
What is a comfort control valve?
Thermostatic comfort valves or sensor valves install under sinks connecting the homes hot and cold water lines together. Material within these valves expand and contract (open / close) depending on the temperature of the water contacting the valve.
How do I know if my Grundfos pump is working?
How do you bleed air out of a circulating pump?
How does a crossover valve work?
The crossover valve, which opens when the water temperature falls below 95ºF, typically is installed below the sink farthest from the water heater. When open, the valve allows cool water resting in the hot-water lines to flow into the cold-water lines.