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Freeze Protection for the Optional EASY CONNECT
®
Piping Arrangement
• Eliminate all water in the optional EASY CONNECT
®
Piping Arrangement and in all
internal piping when the tower is idle.
• It is essential to drain water from the EASY CONNECT
®
Piping Arrangement and
internal piping whenever the potential for freezing temperatures exists. Drain the water
by using 1/2” NPT drain port located on the inboard side of the EASY CONNECT
®
Piping Arrangement.
• There are three recommended methods for draining the piping:
–
Preferred: Install a normally open 1/2” solenoid valve on the 1/2” drain connection
of the EASY CONNECT
®
Piping Arrangement. Wire the valve in the pump circuit so
the valve closes when the pump is energized. Select the solenoid valve to operate
with a minimum pressure differential of 0 psi, which is required to limit the static
head imposed on the valve from the water column.
–
Install a 1/2” manual valve on the 1/2” drain connection of the EASY CONNECT
®
Piping Arrangement. Open the valve during the cold weather operation. Keep the
valve closed during the warm weather to achieve full thermal performance.
–
Remove the 1/2” plug from the 1/2” drain connection of EASY CONNECT
®
Piping
Arrangement during the cold weather operation. Reinstall the plug during the warm
weather to obtain full thermal performance.
Figure 7.
Optional EASY CONNECT
®
Piping Arrangement