Watts LYNC UV-H, Инструкция по установке, эксплуатации и обслуживанию

Страница: 13 / 40

LYNC UV-H
SECTION 4: INSTALLATION INSTRUCTIONS
• • •
2. The optional solenoid valve ensures that should the system fail, due to power loss, low UVT or low
UV lamp output, the system will fail in safe mode and shut down the water flow. It is recommended
to install the solenoid valve just after the UV unit provided that a flood detection device exists at the
site
– this allows the unit to purge during alarm situations. If a flood detection device is not present,
install the solenoid valve ahead of the UV unit. The direction of flow through the solenoid valve is
important
– verify flow direction with label on the valve. Water will not flow backwards through the
valve. Keep the coil of the valve pointing upward (to prevent water from dripping on it). The valve
requires minimum 55kPa (8psig) to fully open.
The optional solenoid valve is normally closed and must be powered to open.
Some of the solenoid valves offered have a manual override (white lever) that can be used to force
the valve open. In any regulated sites such as municipal applications, the manual override should
not be used. For normal operation, always leave valve in automatic position. In the Advanced
Settings menu, item 2.7.3, toggle the valve to be
“Installed” and a monthly reminder will appear to
test valve. Please test valve monthly.
3. Connect the purge valve to a drain using the tubing provided
– see Figure 4.3. Note that an air gap is
typically required between tubing and drain - follow local plumbing regulations. The tubing can be
placed down the back side of the unit. The tubing should be secured to the wall or floor to prevent it
from moving during the purging cycle.
During startup of the unit, it is strongly recommended to
test the purge valve to confirm connections are free of leaks and the water discharges to drain.
CAUTION! Do not allow the inside of the unit to get wet. Before opening the water supply, double check all
connections and taps. Slowly turn on the water supply, vent out trapped air and check for leaks. If leaks exist,
investigate the cause and repair before plugging in the unit.
Figure 4-3
4. Once the system is checked for leaks under full pressure, install pipe insulation to any
overhead piping to prevent condensation from falling onto or into the unit.
IMPORTANT: After the unit has been operating for a few hours, check all connections for leaks
(specifically at flexible hoses if purchased). Repeat this procedure periodically.