The AM101C1070-US-1LF is a lead-free thermostatic mixing valve from Resideo (Honeywell Home), 3/4 inch, sweat connection.
A mixing valve solves a problem that has no other answer: a water heater has to be kept hot enough to suppress bacterial growth in the tank, and that temperature is too hot to deliver to a tap. The valve blends stored hot water with cold on its way out, so the tank stays hot and the fixture does not.
Beyond safety, tempering buys capacity. A tank held hot and blended down delivers considerably more usable hot water than the same tank set to delivery temperature, because each gallon drawn is stretched with cold.
The 1070 designation marks the point-of-use range, intended for tempering at or near the fixture rather than at the heater. Confirm the listed standard against what your jurisdiction requires for the application — point-of-use and whole-house tempering are held to different listings.
Union sweat ends solder to copper, with the union keeping the valve serviceable afterwards.
Lead free construction, as required for potable water in the United States.
Set the outlet temperature with a thermometer at the fixture, not by the dial alone, and re-check it after the system has settled. Inlet conditions move the mix, and a valve set on a cold line reads differently once the loop is up to temperature.
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Brand: Resideo (Honeywell Home)
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Manufacturer Part #: AM101C1070-US-1LF
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Type: Thermostatic mixing valve
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Size: 3/4 in
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Connection: sweat
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Series: 1070 point-of-use
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Lead free: Yes
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Shipping weight: 1.5 lb
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Category: Mixing Valves
Full Specifications
| Controlled Media |
Potable Water, Non Potable Water |
| Re-Circulation |
No |
| Approvals and Standards |
ASSE 1017 Certified, ASSE 1070 Certified, CSA Listed, IAPMO Listed |
| Color |
Metallic |
| Includes |
Check Valves on Hot and Cold Inlets |
| Product Height |
5.6 in, 142.24 mm |
| Product Length |
4.9 in, 124 mm |
| Warranty |
1 Year |
| Adjustment Means |
Handwheel |
| Cold Inlet Temperature (Min) |
39 °F, 27 °C |
| Cold Inlet Temperature (Max) |
80 °F, 27 °C |
| Flex Connector Included |
No |
| Flow Coefficient |
1.8 Cv |
| Flow Rate (Min) |
0.50 gpm, 1.9 lpm |
| Hot Inlet Temperature (Min) |
120 °F, 49 °C |
| Hot Inlet Temperature (Max) |
180 °F, 82 °C |
| Lead Free |
Yes |
| Media Temperature (Max) |
212 °F, 100 °C |
| Number of Check Valves |
2 |
| Operating Mixing Temperature (Min) |
70 °F, 21 °C |
| Operating Mixing Temperature (Max) |
120 °F, 49 °C |
| Operating Pressure (Max) |
150 psi, 1034 kPa |
| Seal Material |
EPDM Rubber |
| Valve Body Material |
Teflon-coated, Nickel-plated Brass |
| Accessories |
AM-1-020RP/U, AM101-SB/U, AM1-TAIL101UP-LF, AM1-TG101-US-LF/U |
| Connection Size |
3/4 in |
| Connection Type |
Union Sweat |
| Nominal Diameter |
DN20 |
| Number of Connections |
3 |
| Valve Body Pattern |
Straight Through |
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