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Outdoor Dry Bulb
Indoor Wet Bulb
Battery Life
Auto Power Off Enabled
Wireless Signal Lost
Selected Refrigerant of System
Static Target Superheat Calculation
Connection Strength to Analyzer
IDWB Connection Strength
ODDB Connection Strength
Quick Start
1 Install six AA batteries into rear battery com-
partment. Batteries included in packaging.
2 Press the center blue button for 1 second to
turn on your new manifold.
3 Connect hoses and pipe clamps to the mani-
fold and the system.
4 See real-time pressure and temperature mea-
surements all at once!
Certifications
FCC ID: VEARF915A
C-Tick (N22675)
CE
RoHS Compliant
Description
Your SMAN440 is a top of the line Wireless 4
Port Manifold for HVACR professionals. See all
your pressures and temperatures at the same
time on the redesigned large display with bright
blue backlight.
SMAN440 combines high precision, absolute
pressure sensors, a superheat/subcooling
calculator and dual temperature measurements.
Your SMAN440 calculates and displays target
superheat and actual superheat to verify proper
charge. SMAN440’s large 3/8” VAC port and true
3/8” bore throughout the block allow for quicker
recovery and evacuations.
Your SMAN440 is designed to meet the
demands of HVACR field service with a rugged
rubber boot for durability, a strong metal
hanger for easy storage and a form fitting, water
resistant, padded nylon pouch.
Use additional wireless products like
SDP2 Dual In-Duct Psychrometer to receive
temperature measurements wirelessly for real-
time target superheat calculations.
Pressure (bar)
Pressure (pounds/in
2
)
Pressure (kilopascals or Megapascals)
Negative Pressure (inches of mercury)
Negative Pressure (cm of mercury)
Superheat
Subcooling
Target Superheat
Suction Line Temperature
Liquid Line Temperature
Vapor Saturation Temperature
Liquid Saturation Temperature
Fieldpiece
4 Port Wireless
Manifold
OPERATOR'S MANUAL
Model SMAN440
Controls
1 Insert Type K thermocouple plugs here.
2 Temperature calibration pots.
3 Press to zero atmospheric pressure.
4 Press to calibrate to refrigerant tank.
(See Advanced Pressure Calibration section.)
5 Press to confirm selection.
6 Press/hold to cycle through refrigerants.
7 Hold 1 second to enable wireless functionality.
8 Press to scroll up to adjust values.
9 Press to change units.
10 Press to scroll down to adjust values.
11 Hold 1 second to power on or off. Press to toggle backlight.
12 Press to enter Target Superheat setup mode.
13 Turn clockwise to close High side port.
14 Turn clockwise to close Low side port.
15 Turn clockwise to close 3/8" Vacuum port.
16 Turn clockwise to close Refrigerant port.
Functions
Superheat and Subcooling
Your SMAN440 can calculate and display both superheat and
subcooling simultaneously.
1 Select the appropriate refrigerant using the REFRIGERANT button.
2 Connect EPA approved refrigerant hoses to low and high side on
SMAN440. Plug Type K thermocouple pipe clamps to SLT and LLT.
3 Connect your SMAN440 to the system:
Superheat:
Hand tighten low side hose to suction line service
port. Place the SLT pipe clamp thermocouple on the suction line
between the evaporator and compressor, no closer than 6 inches
to compressor.
Subcooling:
Hand tighten high side hose to liquid line service
port. Attach the LLT pipe clamp thermocouple on the liquid line
between the condenser and expansion valve (TXV), as close to the
service port as possible.
4 After turning the system on or making any adjustments to
the system wait 15 minutes before charging by superheat or
subcooling to ensure the system is stabilized.
5 To add or remove refrigerant connect a refrigerant or recovery
cylinder to the REF port on SMAN440. Follow recommneded
charging or recovery practices from equipment manufacturer. Use
the low side, high side, and REF valves on SMAN440 to charge or
recover refrigerant as needed. Let system stabilize for 15 minutes.
Note: When superheat and/or subcooling cannot be calculated an
"OL" or "-OL" will be displayed. Please check the following:
1 The correct refrigerant is selected on the SMAN.
2 The pipe thermocouples are plugged into SLT/LLT ports and are in
good working condition.
3 The pipe thermocouples are attached in the appropriate location on
the system. See step 3 above for details.
Target Superheat
Target Superheat is useful for charging fixed orifice air conditioning
systems. Your SMAN440 can receive real-time indoor wet bulb (IDWB)
and outdoor dry bulb (ODDB) temperatures wirelessly to calculate real-
time target superheat. The IDWB and ODDB values can also be entered
both manually if measurements are taken by other instruments, or a
combination of one wireless measurement with one manually inputted
measurement.
Receive IDWB and ODDB temperatures wirelessly
1 Press Target SH button to enter Target SH setup mode. SMAN will
search for last connected wireless instrument and automatically
connect if found. Press ENTER to end search and sync to a new
wireless instrument. IDWB will blink indicating it is ready for an
input.
2 Hold SYNC until beep is heard to search for a Fieldpiece wireless
instrument.
3 Set your Fieldpiece wireless instrument to connect with the
SMAN440. Refer to your Fieldpiece wireless instrument's manual
for more information.
4 Once SMAN440 is connected with Fieldpiece wireless instrument,
the real-time wet bulb temperature measurement will display.
5 Ready the Fieldpiece wireless instrument to measure indoor wet
bulb temperature and place the probe at the return side of the
evaporator between the filter and the coil.
6 On your SMAN440 use the ARROWS to setup ODDB. When ready,
ODDB will be blinking.
7 Repeat steps 2 -5 for outdoor dry bulb measurements (ODDB). For
outdoor dry bulb measurement, place the dry bulb temperature
probe onto the side of the condenser. For accurate results, keep it
shaded from direct sunlight.
8 Target superheat (TSH) is calculated and updated in real-time and
located in the center column of display.
Wireless Notes
1 For real-time target superheat calculations, both IDWB and ODDB
measurements must be received wirelessly.
2 A blinking HOLD will appear to the left of the TSH calculation
when one measurement is wirelessly received and the other
manually input indicating a static TSH calculation.
3 If the indoor wet bulb or outdoor dry bulb measurements result in
an uncalculable TSH,
"OL"
or
"-OL"
will display.
4 When the IDWB or ODDB is wirelessly connected with SMAN440,
and the connection is lost, “nSG” (No Signal) will display.
The SMAN440 will try to reconnect with Fieldpiece wireless
instrument for 2 minutes while the unit is powered ON. During
these 2 minutes IDWB or ODDB can be connected to a different
Fieldpiece wireless instrument but manual entry will be disabled.
Manually Input Temperatures
1 Press Target SH button to enter Target SH mode. Press ENTER to
end wireless search. IDWB will blink indicating it is ready for an
input.
2 Press UP or DOWN ARROW to toggle between IDWB or ODDB
input. Hold ENTER to select which temperature you want to input,
either IDWB or ODDB. The far left digit of IDWB or ODDB will begin
blinking indicating manual input mode is ready.
3 Press the ARROWS to change values and press ENTER to lock in
each digit.
4 Repeat steps 2 and 3. The calculated target superheat will show in
the center column of the display. A solid HOLD will display to the
left of the TSH calculation indicating a static TSH calculation.
Note: If the inputted temperature is out of the calculable range for IDWB
or ODDB an "Err" will flash once and a double beep will sound. IDWB
range (40°F to 125°F, 4.4°C to 51.7°C) and ODDB range (50°F to
140°F, 10°C to 60°C). Re-input a temperature within these ranges to
calculate target superheat.
Changing Units
Your SMAN can display pressure and temperature measurements
in English, Metric or combination of both units.
1 Press UNITS to enter unit selection screen.
2 Use ARROW to select your desired pressure units. Press ENTER.
3 Use ARROW to select your desired temperature units. Press ENTER
to return to pressure units.
4 Press UNITS to return to normal SMAN display.
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99 Washington Street
Melrose, MA 02176
Phone
781-665-
1400
