GUARANTEE
We guarantee the Lawler Mixing Valve to be free from def ects in workmanship and material, and for
a period of one year from date of purchase, will replace any parts found by us to be defective. We will
not be held responsible, however, for any labor incidental to, or for any damages caused by defective
material. Each mixing valve is thoroughly inspected and tested under actual conditions at our factory.
Settings
With the simple 3 button interface, select temperature scale and change control parameters to match system requirements.
The factory defaults are typical for a tempering valve system.
The simple 3 key operator interface performs all the functions needed to adjust and set the operating parameters for the
control loop.
Keep recirculation pump running at minimum of 5 gpm.
Press and hold the
enter key for 3 seconds to place the interface in adjustment mode.
Use the
keys to move between functions.
Once at the default set temperature (120°F) press
then make temperature changes with
When finished, confirm the change with
then select the next function with
When all changes have been made, hold down
for 3 seconds to exit adjustment mode.
The main display shows the current system temperature.
See separate documentation for:
• Piping and wiring two valves in parallel
• ModBus connection and register
• Neptune EMX Domestic Tempering System with fail safe actuator
STORAGE
TANK
WATER
HEATER
HEAT TRAP
27” DROP
RECIRCULATION
PUMP
BALANCING
VALVE
CW
CW
HW
CV
CV
CV
CV
TO LOW
TEMPERATURE
FIXTURES
Water heater must
be installed per
manufacturers O+M
Pump must run continuously
at a minimum of 5 gpm.
STORAGE
TANK
WATER
HEATER
HEAT TRAP
27” DROP
RECIRCULATION
PUMP
BALANCING
VALVE
CV
CW
CW
HW
CV
CV
CV
CV
TO LOW
TEMPERATURE
FIXTURES
TO HIGH
TEMPERATURE
FIXTURES
RECIRCULATION
PUMP
Water heater must
be installed per
manufacturers O+M
Pump must run continuously
at a minimum of 5 gpm.
Figure 1
When used in a single temperature
recirculating system
Figure 2
When used in a dual temperature
recirculating system
Summary of Contents for NEPTUNE EMX 075
Page 4: ...Notes...
