The AM102R-UT-1 is a thermostatic mixing valve from Resideo (Honeywell Home) for hydronic heating service, 1 inch, NPT 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.
This is a heat-only valve. The R series is built for hydronic heating loops — radiant floor supply temperature, boiler protection, blending on a heating circuit. It is not for potable water service. Fitting a heat-only valve on domestic hot water puts a component outside its rating on the water people drink and bathe in. Check the model before ordering if the application is potable.
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 #: AM102R-UT-1/U
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Type: Heat-only mixing valve (not for potable water)
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Size: 1 in
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Connection: NPT
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UPC: 085267825511
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Category: Mixing Valves
Full Specifications
| Controlled Media |
Non Potable Water |
| Re-Circulation |
No |
| Color |
Metallic |
| Includes |
Check Valves on Hot and Cold Inlets |
| Product Height |
6.6 in, 166 mm |
| Product Length |
7 in, 178 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 |
3.9 Cv |
| Flow Rate (Min) |
0.50 gpm, 1.9 lpm |
| Flow Rate (Max) |
16 gpm, 60.6 lpm |
| Hot Inlet Temperature (Min) |
120 °F, 49 °C |
| Hot Inlet Temperature (Max) |
180 °F, 82 °C |
| Lead Free |
No |
| Media Temperature (Max) |
212 °F, 100 °C |
| Number of Check Valves |
2 |
| Operating Mixing Temperature (Min) |
70 °F, 21 °C |
| Operating Mixing Temperature (Max) |
180 °F, 82 °C |
| Operating Pressure (Max) |
150 psi, 1034 kPa |
| Seal Material |
EPDM Rubber |
| Valve Body Material |
Teflon-coated, Nickel-plated Brass |
| Accessories |
AM102-SB/U, AM-1-025RP/U, AM1-TG102-US-LF/U |
| Connection Size |
1 in |
| Connection Type |
Union NPT |
| Nominal Diameter |
DN25 |
| Number of Connections |
3 |
| Valve Body Pattern |
Straight Through |
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