TX Series Installation, Operation, and Maintenance Manual
Diversified Heat Transfer, Inc.
439 Main Road, Route 202
Towaco, New Jersey 07082
Page
15
of
33
Phone: 800-221-1522
Website: www.dhtnet.com
MULTIPLE UNITS INSTALLATION
NOTES:
These are typical installation piping drawings. Consult local codes and authorities.
Refer to dimensional drawing for actual size and location dimensions of piping and other
connections since they vary depending upon unit model.
Relief valve shall be installed to safe drain according to appropriate plumbing codes.
Piping connections to the unit shall be provided with unions or flanges maintaining enough
clearances for service. Dielectric fittings are suggested to make connections between dissimilar
metals to prevent galvanic corrosion.
A check valve may be utilized in place of backflow preventer if permitted by local codes.
Piping installation components are supplied by others in the field.
Expansion tank shall be installed whenever a backflow preventer or check valve is present in the
system. Locate the Thermal Expansion Tank on the domestic cold water line between the heater and
backflow preventer or no return valve.
Use balancing valves to balance the flow through all units if the piping arrangement is not reverse
return.
Recirculation line connections available only for TX-80 and TX-110 unit models.
Multi Units Installation
