TX Series Installation, Operation, and Maintenance Manual
Diversified Heat Transfer, Inc.
439 Main Road, Route 202
Towaco, New Jersey 07082
Page
13
of
33
Phone: 800-221-1522
Website: www.dhtnet.com
Install temperature and pressure protective equipment required by local codes, but no less than a
combination temperature and pressure relief valve certified as meeting the requirements for Relief
Valve and Automatic Shutoff Devices for Hot Water Systems, ANSI Z21.22, by a nationally recognized
testing laboratory that maintains periodic inspection of listed equipment or materials.
The valve must be oriented, provided with tubing, or otherwise installed so that discharge can exit only
within six (6) inches above, or at any distance below, the structural floor and cannot contact any
electrical part. The valve must be piped to an area where discharge will not cause personal injury or
damage the surrounding area.
WARNING: TEMPERATURE & PRESSURE RELIEF VALVE
Install a T&P with a rated capacity that is equal to or greater than the output of the energy
source.
Removal of the T&P, or failure to replace temperature-pressure relief valve, will release the
manufacturer from any claim which might result from excessive temperatures and pressures.
