User Guide

HYDRONIC SPECIALTIES TACO 4900 05/08/2008
HYDRONIC SPECIALTIES TACO 4900 15181-5
B. Where large air quantities can accumulate, provide enlarged air collection standpipes.
C. Provide manual air vents at system high points and as indicated.
D. For automatic air vents in ceiling spaces or other concealed locations, provide vent tubing to
nearest drain.
E. Air separator and expansion tank to be installed on the suction side of the system pumps.
Expansion tank to be tied into system piping in close proximity to air separator and system fill
line.
F. Provide valved drain and hose connection on strainer blow down connection.
G. Provide pump suction fitting on suction side of base mounted centrifugal pumps where
indicated. Remove temporary strainers after cleaning systems.
H. Provide combination pump discharge valve on discharge side of base mounted centrifugal
pumps where indicated.
I. Support pump fittings with floor mounted pipe and flange supports.
J. Provide radiator valves on water inlet to terminal heating units such as radiation, unit heaters,
and fan coil units.
K. Provide radiator balancing valves on water outlet from terminal heating units such as radiation,
unit heaters, and fan coil units.
L. Provide relief valves on pressure tanks, low pressure side of reducing valves, heat exchangers,
and expansion tanks.
M. Select system relief valve capacity so that it is greater than make-up pressure reducing valve
capacity. Select equipment relief valve capacity to exceed rating of connected equipment.
N. Pipe relief valve outlet to nearest floor drain.
O. Where one line vents several relief valves, make cross sectional area equal to sum of individual
vent areas.
P. Clean and flush glycol system before adding glycol solution. Refer to Section 15185.
Q. Feed glycol solution to system through make-up line with pressure regulator, venting system
high points. Set to fill at ___ psi .
R. Perform tests determining strength of glycol and water solution and submit written test results.
END OF SECTION 15181