Fieldpiece SMAN SM380VINT User manual

Fieldpiece®
SMAN™ Refrigerant
Manifold + Micron
Gauge (3 Port)
OPERATOR'S MANUAL Model SM380VINT
SM480VINT
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SM380VINT
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Contents
Important Notice . . . . . . 4
Class A2L/A2/A3 Refrigerant Safety Notice
Warnings
Quick Start . . . . . . . . 5
What’s Included
Description . . . . . . . . 6
Features
Display
Front View
Rear View
Operation. . . . . . . . . 14
Buttons
Recent Refrigerants
VIEW Select
AIR Select
Superheat (SH) and Subcooling (SC)
Target Superheat (TSH)
Deep Vacuum
Test Tightness (Pressure Test)
Test for Noncondensables

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Menu . . . . . . . . . . 22
Data Logging
Auto Power O (APO)
Temperature Calibration
Wireless Measurement Sources
Target Superheat (TSH) Sources
Units
Vacuum Alarms
Backlight Timer
Advanced Pressure Calibration
Firmware View and Update
Restore User Settings
Delete Log File
Format Internal Flash Drive
Maintenance. . . . . . . . 35
Cleaning
Battery Replacement
Using Dierent Refrigerants
Specications . . . . . . . 36
Temperature
Pressure
Deep Vacuum
Wireless Compatibility
Manifold Diagram
Certication and Module IDs . . 39
Limited Warranty . . . . . . 43

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Important Notice
This is not a consumer product. Only qualied
personnel trained in service and installation of
A/C and/or refrigeration equipment shall use
this product.
Read and understand this operator’s manual in
its entirety before using your SMAN Refrigerant
Manifold to prevent injury or damage to you or
equipment.
Class A2L/A2/A3 Refrigerant
Safety Notice
Systems using class A2L (mildly ammable),
class A2 (flammable), or class A3 (highly
ammable) refrigerants can be tested safely ONLY
by qualied personnel explicitly trained in the use
and handling of those refrigerants. This manual
is in no way a replacement for proper training.
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WARNINGS
Do not apply more than 65 Bar to any port of the manifold.
Ground properly when testing A2L/A2/A3 (hydrocarbon) refrigerants.
Do not use in the vicinity of explosive substances.
Inhalation of high concentrations of refrigerant vapor can block oxygen to
the brain causing injury or death.
Refrigerant liquid can cause frostbite.
Follow all equipment manufacturer’s testing procedures above those in
this manual in regards to properly servicing their equipment.

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Quick Start
1. Install the included six AA batteries into rear
battery compartment.
2. Press center blue button for 2 seconds to
turn on your new SMAN manifold.
3. Connect your hoses and pipe clamps to the
SMAN manifold and to the system.
4. View live pressures and temperatures.
5. Usearrowbuttonstoselectarefrigerantand
view calculations in real-time!
What’s Included
• SM380VINT SMAN Refrigerant Manifold
(3 Port)
• (2) TC24 Type K Pipe Clamp Thermocouples
• (1) ATA1 Type K Bead Thermocouple w/Clip
• (1) Year Warranty
• Operator’s Manual

Description
SMAN™ Refrigerant Manifolds give you the
trust needed for doing the job right the rst time.
Your new Fieldpiece manifold has been
upgraded for ultimate field protection and
long range wireless communication. The fully
rubberized case seals and protects from dust,
bumps, and light rain. Use the heavy duty hook
to hang it in your work vehicle while protected
by its large padded soft case.
Model SM380VINT is your testing hub at the
jobsite. In addition to the included thermocouples,
you can connect wirelessly to psychrometers,
pipe clamps, and even a refrigerant scale. For
example, assign one psychrometer (model JL3RH)
to return air and another to supply air to view live
temperature split across the evaporator directly.
View all your measurements and live
calculations on the extra large LCD or from a
distance on your mobile device. A rolling list of
your 10 most recently used refrigerants is stored
at the top of the main refrigerant list for quick
selection.
Verify proper charge by comparing actual
superheat (SH) with target superheat (TSH).
Use the outdoor dry bulb thermocouple and
an optional indoor psychrometer for live TSH
calculations.

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Pressure sensors automatically compensate
for altitude and weather changes. Use the
internal vacuum gauge for fast and convenient
monitoring of your evacuations.
Features
Job Link® System Ready
- Long Wireless Range (1000 feet/305 meters)
- Connect to Your Mobile Device Directly (page 38)
- Connect Job Link Tools Directly (page 38)
Real-time Calculations
- Superheat and Subcooling
- Vapor Saturation and Liquid Saturation
- Target Superheat (requires model JL3RH for real-time)
- T1-T2
(3) Type K Thermocouple Jacks
- Suction Line
- Liquid Line
- Outdoor Ambient
(3) 1/4” Ports
Built-in Micron Gauge
Tightness Test
Recent Refrigerant List
Sealed Sight Glass
Heavy Duty Rubberized Construction
Rugged Hanging Hook
Operation in the Rain (IP54)
Data Logging with USB Export

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Display
°F: Temperature (Fahrenheit)
°C: Temperature (Celcius)
Psig: Pressure (pounds/in2)
Bar: Pressure
MPa: Pressure (megapascals)
kPa: Pressure (kilopascals)
inHg: Negative Pressure (inches of mercury)
cmHg: Negative Pressure (centimeters of mercury)
Microns: Vacuum (microns of mercury)
Pascals: Vacuum
mBar: Vacuum (millibar)
mTorr: Vacuum (millitorr)
Torr: Vacuum (equivalent to mmHg)
Δ/min: Vacuum Rate (dierential per minute)
h:m:s: Hours:Minutes or Minutes:Seconds
SH: Superheat (suction line - vapor saturation)
SC: Subcooling (liquid saturation - liquid line)
VSAT: Vapor Saturation Temperature (from P-T chart)
LSAT: Liquid SaturationTemperature (from P-T chart)

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TSH: Target Superheat (calculated from IDWB and ODDB)
T1-T2: Measurement Dierential
SLT: Suction Line Temperature (low side)
LLT: Liquid Line Temperature (high side)
ODDB: Outdoor Dry Bulb Temperature
IDWB: Indoor Wet Bulb Temperature
LOG: Data Logging in Progress
Job: Job Slot (1-9) of Data Log
Span: Hours (Hrs) of Data Logging
Interval: Seconds (Sec) Between Logged Measurements
R: Return Psychrometer
S: Supply Psychrometer
DB: Dry Bulb from Psychrometer
WB: Wet Bulb from Psychrometer
DP: Dew Point from Psychrometer
%RH: Relative Humidity from Psychrometer
BTU/LBM: Enthalpy from Psychrometer (BTU per pound mass)
KJ/KG: Enthalpy from Psychrometer (kilojoules per kilogram)
TΔT: Target Dry Bulb Split from Psychrometers
ΔT: Dry Bulb Split from Psychrometers
Lb: Pounds (from wireless scale)
Oz: Ounces (from wireless scale)
Kg: Kilograms (from wireless scale)
g: Grams (from wireless scale)
APO: Auto Power O Enabled
: Top 10 Refrigerant Selected
: Speaker Turned O
: Battery Life Remaining
: Wireless Signal Strength

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Display
Buttons
Sight
Glass
Suction
Line Port
Liquid
Line Port
Connect to a refrigerant cylinder
directly, to a recovery machine,
or to a vacuum pump.
Refrigerant Port
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Metal shorting blocks are for
Rapid Rail™ Thermocouple
model JL3PC (sold separately)
Fieldpiece 8CFM Vacuum
Pump model VP85
(sold separately)
Fieldpiece Recovery
Machine model MR45
(sold separately)
Pipe Clamp Storage Arms
Removable rubber cover
Micro USB Port
Liquid
Line Port
Suction Line Port Valve
Liquid Line Port Valve
(LOW)
(HIGH)
Front View
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Battery Cover Screws
Battery Door Finger Pull
Steel Hanging Hook
(ODDB) Outdoor
Thermocouple Jack
Shown without thermocouple
(SLT) Suction Line
Thermocouple Jack
Shown fully inserted
4 Digit Job Link® System ID
Use when connecting to the Job Link
Mobile App for testing and reporting
(LLT) Liquid Line
Thermocouple Jack
Shown not inserted enough
Rear View
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Thermocouple
Bumpers
Bumpers help secure
thermocouple plugs.
Pipe clamp thermocouples
have indents on the plug
that line up with the bumper
when fully inserted.
Rear View
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Operation
Buttons
A beep sounds when a button is pressed. A
double beep sounds when a button is pressed
and the function is not possible at that time. The
speaker can be muted altogether (page 22).
Press 2 sec to toggle power. Press to toggle backlight.
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Scroll through refrigerants or change values.
ENTER: Conrm a changed value or activate an ALARM (page 18).
MENU: Enter the menu (page 22) or exit a mode.
VIEW: Display ODDB,TSH, or T1-T2 (page 15).
AIR: Display SLT/LLT or various return and supply air measurements
from optional psychrometers (page 15).
WIRELESS ON/OFF: Toggle wireless communication ON/OFF. Turn
wireless OFF to increase battery life.
ZERO WEIGHT: Press 2 sec to zero (tare) weight from a wireless
scale (page 26).
TEST TIGHTNESS: Enter tightness test setup (page 20).
ZERO PRESSURE: Press 2 sec to zero the displayed pressures.
Recent Refrigerants ( )
A rolling list of your 10 most recent refrigerants,
indicated by a , is stored above the main list.
When you power o your manifold, the current
refrigerant is added automatically to this dynamic
list of 10.

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VIEW Select
Press VIEW to cycle through ODDB (outdoor
dry bulb), TSH (target superheat), and T1-T2
(middle display - bottom display).
ODDB: Live reading of the rear ODDB thermocouple jack. ODDB does
not show if set to manual value (page 27).
TSH: Live target superheat calculated from ODDB and IDWB. Each of
these measurements can be live or manually entered (page 17).
T1-T2: Live simple subtraction of the bottom display (T2) from the
middle display (T1). With SLT and LLT showing, you can check for
a temperature drop across a lter drier. With R and S showing, you
can check the eect of the indoor unit. With TΔT and ΔT showing,
you can see how close the actual ΔT is to the target.
AIR Select
Press AIR to display various calculations
and measurements from Job Link system
psychrometers you’ve assigned (page 26). The
parameter is briey shown when pressed, then
shown at the top of the LCD.
Press AIR for >1 second to view SLT/LLT.
SLT: Live reading of suction line temperature.
LLT: Live reading of liquid line temperature.
R: Live reading from return air psychrometer.
S: Live reading from supply air psychrometer.
TΔT: Live target dry bulb split from psychrometers.
ΔT: Live actual dry bulb split from psychrometers.

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Superheat (SH) and Subcooling (SC)
Superheat is the amount of heat added to
refrigerant after changing to a vapor in the
evaporator. Subcooling is the amount of heat
removed from refrigerant after changing to a
liquid in the condenser. View both live at the
same time!
1. Use ARROWS to select the system refrigerant.
2. Close all manifold valves.
3. Connect EPA approved refrigerant hoses to LOW and HIGH side ports.
4. Fully plug pipe clamp thermocouples into SLT and LLT rear jacks.
5. Hand tighten both the LOW side hose to suction line service port and
the HIGH side hose to the liquid line service port.
6. Clamp the SLT thermocouple to the suction line between the
evaporator and compressor, at least 6 inches from the compressor.
7. Clamp the LLT thermocouple to the liquid line between the
condenser and metering device, as close to the service port as
possible.
8. Purge hoses as you open HIGH and LOW manifold valves.
9. View superheat and subcooling in real-time.
• Ensure system has stabilized before using superheat or subcooling to
adjust the charge of the system.
• To add or remove refrigerant connect the tank/cylinder/machine to
the center refrigerant port. Use manifold valves to precisely charge
or recover refrigerant as needed. Follow recommended charging or
recovery practices from equipment manufacturer and training.
• When superheat and/or subcooling cannot be calculated,“- - - - ”
will be displayed. If superheat and/or subcooling is negative,“Below
Typical Range”will show. In rare cases this is normal, but usually a
thermocouple is disconnected or the selected refrigerant is incorrect.

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Target Superheat (TSH)
Compare target superheat (TSH) to actual
superheat (SH) when charging fixed orifice
air conditioning systems. TSH is continually
calculated from indoor wet bulb (IDWB) and
outdoor dry bulb (ODDB) temperatures.
IDWB: By default, this is a manually set value of 60.0°F.
For a live measurement, assign the optional model JL3RH wireless
psychrometer (page 26).
ODDB: By default, this is the live measurement of the ODDB
thermocouple jack. If you prefer a static measurement, assign a
manual value (page 27).
1. Connect the included type K bead thermocouple to the ODDB
thermocouple jack. Use the alligator clip to locate the bead in a
shaded area of the condenser to measure the temperature of air
entering the condenser.
2. Press VIEW until ODDB is displayed to verify the measurement.
If you changed ODDB to a manually set value, it will be used to
calculate TSH but will not be displayed.
3. Measure IDWB after the lter, just in front of the indoor coil. If
a psychrometer is assigned, you can press AIR until wet bulb is
displayed to verify the measurement.
4. Press VIEW untilTSH is displayed.

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Deep Vacuum
Follow recommended evacuation practices
from equipment manufacturer and training.
Alarms can be adjusted in the MENU (page 28).
1. Close all manifold valves (including shuto valve to pump).
2. Setup your tools and equipment (see diagram).
Connect HIGH port to liquid line service port.
Connect LOW port to suction line service port.
Connect refrigerant (middle) port to vacuum pump making sure to
have a shuto valve between the pump and manifold.
3. Turn on your vacuum pump.
4. Open shuto valve between pump and manifold.
The vacuum sensor is now exposed to your pump, but it will not
display until HIGH/LOW manifold valves are opened. This ensures the
measurement is of the system and not just the manifold.
5. Open HIGH and LOW manifold valves.
6. Press ALARM to activate the low alarm.
The stopwatch starts. The rate of change is displayed in units
per minute. The smaller the rate of change, the closer you are to
stabilization. You may need to improve your setup if rate slows well
before reaching your desired vacuum (see Tips for Better Evacuations).
7. Once the the low alarm level is reached, the backlight blinks and
alarm sounds. Press any button (other than ENTER) to silence alarm.
8. Close shuto valve to block the pump.
Do not close HIGH and LOW valves or you’ll block the system and
measure just the manifold!
9. Turn o your vacuum pump.
10. Press ALARM to activate the high alarm and start the stopwatch.
11. Once the high alarm level is reached, the backlight blinks, alarm
sounds, and the stopwatch stops. Press any button (other than
ENTER) to silence alarm.
12. Close HIGH and LOW manifold valves.
The vacuum sensor is now blocked from the system (page 39).

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Tips for Better Evacauations
• Remove schrader cores and depressors with a core removal tool.
• Use shortest vacuum rated hoses with largest diameter available.
• Do not evacuate through hoses with low loss ttings.
• Inspect the rubber seals at both ends of your hoses for damage.
• Change pump oil before and during the job. Change pump oil on-
the-y without losing vacuum with Fieldpiece vacuum pumps.
• When the vacuum pump is blocked, a slow rise that stabilizes may
signify moisture is still present in the system. A continuous rise to
atmosphere indicates a leak. Check hoses, tools, or the system itself.
• Measurements are less representative of the entire system when
the vacuum pump is on because pumping creates a pressure
gradient. Block the pump and allow the system to stabilize before
assuming the measurement is of the entire system.

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Test Tightness (Pressure Test)
After working on a refrigerant-side component
of an emptied system, it’s a good idea to
pressurize the system with dry nitrogen and
check for pressure drops before evacuation.
13. Pressurize the system with dry nitrogen. Pressure levels vary with
the equipment you’re testing. Always check with the manufacturer.
14. Connect the low side (suction line) port to the system and wait for
the pressure to stabilize. You can connect the high side (liquid line)
as well to help monitor stability, but the pressure dierential (P.diF)
calculation is only using the low side sensor.
15. Attach SLT clamp to the pipe you’re going to pressurize.
This temperature is used to compensate for any temperature changes
between the start and end of the test.
To deactivate temperature compensation, unplug or unassign SLT
before starting the test; SLT will not be shown or used.
16. Press TEST TIGHTNESS to prepare test.
17. Press ENTER to start the test.
The stopwatch starts.
Real-time compensated pressure change is labeled P.diF.
Real-time temperature is labeled SLT.
Real-time temperature change is labeled ΔT.
18. Press ENTER to stop the test.
The stopwatch, P.diF, and ΔT freeze.
If P.diF is negative, there may be a leak in the system.
If P.diF is positive, SLT or nitrogen temperature may be unstable.
High and low side pressures and SLT continue to display, but they are
no longer being used.
19. Press ENTER to exit the test.
• To save battery life, the screen will turn o after 3 hours of testing,
but will continue to test. Press any button to turn the screen on.