ASSE - 1017
Performance Requirements for Temperature Actuated Mixing Valves for Hot Water Distribution Systems
Organization: | ASSE |
Publication Date: | 1 February 2023 |
Status: | active |
Page Count: | 16 |
ICS Code (Sanitary installations): | 91.140.70 |
ICS Code (Other valves): | 23.060.99 |
scope:
Description
Temperature Actuated Mixing Valves for Hot Water Distribution Systems (herein referred to as "device") shall consist of a hot water inlet connection, a cold water inlet connection, a mixed water outlet connection, a thermal element or thermostatic sensor and a means for adjusting the mixed water outlet temperature. These devices can be either mechanically actuated or electronically controlled device.
Connections
Dimensions of pipe threads, flanges and other connections shall conform to appropriate industry standards.
Maximum Working Pressure
The maximum static pressure of the device shall have a minimum value of 125.0 psi (861.9 kPa).
Temperature Range
a) Supply Water Temperature Range
The hot water supply temperature range shall be 125.0 °F ‐ 180.0 °F (51.7 °C ‐ 82.2 °C) and the cold water supply temperature range shall be 35.0 °F ‐ 80.0 °F (1.7 °C ‐ 26.7 °C).
b) Outlet Water Temperature Range
The device shall be capable of supplying the hot water distribution system with a minimum adjustable range of 105.0 °F ‐ 120.0 °F (40.6 °C ‐ 48.9 °C), provided the hot water supply temperature is at least 20.0 °F (11.0 °C) greater than the outlet water temperature setting.
Compliance with Safety Standards
Electrical controls shall comply and be categorized as operating controls with Class A control functions per UL 60730‐1 and UL 60730‐2‐9 or comply with the applicable requirements of UL 429.
Document History





