Installation
Valve
The EMX valve is connected to the hot water supply, cold
water supply, and mixed outlet. The valve should be piped
per the diagram on the following page.
Provide three full port ball valves, one on each connection
for isolation and servicing the valve.
Instructions
1. Flush pipes prior to installing mixing valve.
2. Install isolation valves at inlets and outlet (not included)
to comply with applicable codes.
3. Connect inlets and outlet and check for leaks. See
piping diagram for details.
4. Connect the power supply.
5. Open isolation valves to start the flow of water to and
through the Neptune EMX mixing valve.
6. The factory default set temperature is 120˚F (50˚C)
7. To adjust temperature refer to the “Settings” section of
this manual.
The Neptune controller features a High Temperature Limit Alarm. The limit can be set at
15-40 °F over setpoint with an adjustable time delay of 3 to 300 seconds. If this limit is
triggered, the state of the SPDT relay changes and the LED readout will read HL A.
Example:
Setpoint = 125 °F, L= 15°F, d = 10 seconds. The alarm is triggered at 140°F after 10 seconds
Piping Diagram
The recirculation pump should run continuously at a
minimum flow of 5 gpm.
Ensure supply pressures are equal.
The return must be piped as shown; connecting into both
the cold side of the mixing valve and hot water source.
Almost all technical issues stem from improper piping.
Sensor Mounting
ATTENTION! The installer must follow all
local codes for installation and provide
check valve to prevent flow between lines.
*Note:
the ball valve installed on the return line going to the
mixing valve may be throttled to account for an oversized
system return. This will help stabilize a system with an
oversized return ensuring the cold water inlet is not too hot
for mixing. The ball valve going back to the hot water source
should not be throttled. A balancing valve may be installed
in place of ball valve for more accurate control.
Actuator
Содержание NEPTUNE EMX 075
Страница 4: ...Notes...
