Fieldpiece SMAN4 User Manual
Fieldpiece
4-Port Wireless
Manifold & Vacuum
Gauge
OPERATOR'S MANUAL
Model SMAN4
Quick Start
1 Power on your SMAN4 by holding the ON/
OFF button for 1 second.
2 Select desired units (English or Metric or a
combination) by holding ENTER for 1 second.
3 Connect hoses and pipe clamps to the system.
4 Press the circular button to select between
Actual Superheat and Subcooling, Target
Superheat, Direct Temperature Display (T1 T2
Direct) or Saturation Temperature Display.
Certifications
FCC ID: VEARF915
C-Tick (N22675)
CE
RoHS Compliant
Description
Your SMAN4 is the rst true wireless-enabled
digital refrigerant 4-port manifold and vacuum
gauge for HVACR service. Use optional wireless
transmitters like SDP2 Dual In-Duct Psychrometer
to receive temperature measurements over-theair for real-time target superheat calculations.
Your SMAN4 can wirelessly send data to the HG3
HVAC Guide for more extensive analysis, data
logging, or printing reports for your customers.
Your SMAN4 combines high precision,
absolute pressure manifold gauges, a superheat/
subcooling calculator, true micron gauge for
vacuum, and dual temperature measurements
into one easy-to-use instrument. Your SMAN4
calculates and simultaneously displays target
superheat and actual superheat to verify
proper charging of a unit. Your SMAN4’s 4-port
manifold has a large 3/8” vacuum port and 3/8”
bore throughout the block for quicker recovery
and evacuations.
Your SMAN4 is designed to meet the demands
of the HVACR technician with a ruggedized
rubber boot for durability, a strong metal
hanger for easy storage and a form tting, water
resistant, padded nylon pouch.
Pressure (bar)
Pressure (pounds/in2)
Pressure (kilopascals or Megapascals)
Negative Pressure (inches of mercury)
Negative Pressure (cm of mercury)
Superheat T1 Direct
Vapor Saturation Temperature
Indoor Wet Bulb
Micron Reading Has Stabilized
Set Mode Alarm Mode
High Alarm Low Alarm
Vacuum (Microns of Mercury)
T1 thermocouple - T2 thermocouple
Target Superheat
Pressure (bar)
Pressure (pounds/in2)
Pressure (kilopascals or Megapascals)
Negative Pressure (inches of mercury)
Negative Pressure (cm of mercury)
Subcooling T2 Direct
Liquid Saturation Temperature
Outdoor Dry Bulb
Vacuum Stopwatch
Hours:Minutes or Minutes:Seconds
Battery Life Connection Strength
Auto Power O Enabled
Wireless Signal Lost
Selected Refrigerant of System
01
Controls
5
6
8 9
1110 12
3
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 turn on backlight. Hold when
powering on to toggle Auto Power O.
6 Press/hold to cycle through refrigerants.
7 Hold 1 second to toggle power on/o.
8 Press up or down arrow to adjust values.
9 Press to conrm selection.
Hold 1 second to adjust units.
10 Press to turn on/o the Hi/Lo vacuum
alarms and hold to change alarm settings.
11 Press to toggle through temperature tests.
12 Hold 1 second to Sync to a wireless enabled partner device.
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.
06
7
4
13
14
15
16
02
Functions
Superheat and Subcooling
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22
1 Press circular button to cycle through temperature modes until
SH and SC are shown. The SMAN4 can calculate and display both
superheat and subcooling simultaneously.
2 Select the appropriate refrigerant using the REFRIGERANT button.
3 Connect EPA approved refrigerant hoses to low and high side on
SMAN4. Plug Type K thermocouple pipe clamps into T1 and T2.
4 Connect your SMAN4 to the system:
Superheat: Hand tighten low side hose to suction line service
port. Place the T1 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 T2 pipe clamp thermocouple on the liquid line
between the condenser and expansion valve (TXV), as close to the
service port as possible.
5 After turning the system on or making any adjustments to
the system wait 15 minutes before charging by superheat or
subcooling to ensure that the system is running normally.
6 To add or remove refrigerant connect a refrigerant or recovery
tank to the REF port on SMAN4. Follow charging or recovery
practices from manufacturer. Use the low side, high side, and REF
valves on SMAN4 to charge or recover refrigerant as needed. Let
system stabilize again for 15 minutes.
T1 T2 Direct
1 Press circular button until T1 and T2 are shown.
2 Plug in any Type K thermocouple into T1 and/or T2.
3 Read the temperature directly from the display.
4 T1-T2 is displayed in the lower left corner of the display.
07
03
Saturation
Shows vapor (VSAT) and liquid (LSAT) saturation temperatures
calculated from the pressures measured and the refrigerant selected.
Target Superheat
Target Superheat is only used for charging fixed orifice
air conditioning systems. Your SMAN4 allows you to receive
real-time indoor wet bulb (IDWB) and outdoor dry bulb
(ODDB) temperatures wirelessly to calculate target superheat.
These values can also be entered manually or input directly by
connecting the included wet and dry bulb thermocouples to T1
and T2 respectively.
Receive IDWB and ODDB temperatures wirelessly
1 Press circular button until you’ve entered Target SH mode.
2 Press UP or DOWN ARROW. IDWB icon will begin blinking.
3 Hold SYNC on SMAN4 until a beep is heard (>1 sec).
4 Attach an accessory head (like ARH5, ARH4, or AAT3) capable of
measuring indoor wet bulb temperature to a Fieldpiece wireless
transmitter (sold separately). Ready instrument to measure
indoor wet bulb temperature and place at the return of the
evaporator between the lter and the coil.
5 Select transmit mode on Fieldpiece wireless transmitter and hold
SYNC until wireless partner searching begins. For SDP2 Dual InDuct Psychrometer, power on and press SYNC button for 1 second.
Once SMAN4 is connected with transmitter, the real-time wet
bulb temperature measurement will display on SMAN4. The ODDB
icon will begin blinking.
6 Repeat steps 3 -5 for outdoor dry bulb measurements (ODDB). For
outdoor dry bulb measurement, place the accessory head onto
the side of the condenser. For accurate results, keep it shaded
from direct sunlight.
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04
7 Real-time target superheat is calculated and located in lower
left corner of display when SMAN4 is receiving real-time indoor
wet bulb and outdoor dry bulb measurements from the wireless
devices.
Note: For real-time target superheat calculations, both IDWB and
ODDB measurements must be received wirelessly.
Note: When the IDWB or ODDB is wirelessly synced with SMAN4, and
the signal/sync is lost, “NSG” will display. The SMAN4 will try to
sync with partner device for 4 minutes while the unit is powered
ON. During these 4 minutes IDWB or ODDB can be synced
wirelessly to a dierent Fieldpiece transmitter but manual entry
or entry though thermocouple will be disabled.
Note: Retrieval of IDWB and ODDB wireless measurements will be
temporarily disabled for 30 seconds (nSG will display) if SMAN4
loses communication with HG3, the wireless tower ( ) will blink
and “nSG” will be displayed on SMAN4 until HG3 reconnects or
30 seconds has elapsed. At this time, IDWB and ODDB wireless
measurements will resume.
Input temperatures with Type K thermocouples
1 Press circular button until Target SH is shown on the bottom,
center of display.
2 Plug ATWB1 Wet bulb Type K thermocouple into T1 and ATA1 Dry
bulb Type K thermocouple into T2. Both included with SMAN4.
3 Press UP or DOWN ARROW to toggle between IDWB or ODDB
input. The icons will begin blinking. Press ENTER to select which
temperature you want to input rst, either IDWB or ODDB. The
real-time temperature from the thermocouple will be displayed.
4 For IDWB input, wet the sock of the ATWB1. Clip it to the return
of the evaporator between the lter and coil. When the wet bulb
temperature reaches its lowest point and stabilizes, press ENTER
to lock the reading. If the inputted temperature is above or below
the wet bulb range, "OL" or “-OL” will blink and a beep will be
heard. Retake the measurement if this occurs.
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05
5 For ODDB input, clip the ATA1 thermocouple to the side of the
condenser. Once reading is stable, press ENTER. If the inputted
temperature is above or below the dry bulb range, "OL" or “-OL”
will blink and a beep will be heard. Retake the measurement if
this occurs. For accurate results, keep the ATA1 shaded from direct
sunlight.
6 Once both IDWB and ODDB are locked in, the Target Superheat
will show in the lower left corner of the display. If the Target
Superheat calculated from the IDWB and ODDB temperatures is
outside the range in which air conditioning is recommended then
“OL” is displayed. Usually, raising the indoor temperature will
bring the conditions within manufacturer’s recommendations. If
your target superheat is out of the recommended range, re-take
your measurements.
7 To re-take either IDWB or ODDB, press UP or DOWN ARROW until
the icon (IDWB or ODDB) you wish to re-take is blinking. Press
ENTER. Re-do the measurement and press ENTER to lock it in. The
newly calculated target superheat will be displayed.
Input temperatures manually
1 Press circular button until Target SH is shown at the bottom,
center of display. Unplug thermocouples from T1 and/or T2.
2 Press UP or DOWN ARROW to toggle between IDWB or ODDB
input. The icons will begin blinking. Press ENTER to select which
temperature you want to input rst, either IDWB or ODDB. The far
left digit of IDWB or ODDB will begin blinking indicating manual
input mode is ready.
3 Press the UP or DOWN ARROW to change values and press ENTER
to lock in each digit. Once the last digit for ODDB or IDWB is
locked in, the calculated target superheat will show in the lower
left corner of the display.
Note: When pressing ENTER to lock in the last digit for IDWB or
ODDB, if the inputted temperature is below or above the wet bulb
or dry bulb range, "OL" or “-OL” will ash once and a beep will be
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heard. In both instances you must re-input the measurement.
Pulling a Vacuum
!
Follow all manufacturers’ evacuation procedures over those in
this manual.
1 Connect your SMAN4 in-line with your vacuum pump and the
system, then power on your SMAN4.
2 Draw a vacuum on the system. The SMAN4 will automatically
sense the negative pressure and display the vacuum in microns.
3 Press Alarm to activate the High (Hi) alarm or Low (Lo) alarm. No
display of Lo or Hi means alarm is o. Note: The stopwatch will
start when an alarm is activated. Pressing Alarm will reset the
stopwatch.
4 When the rate of change in pressure is less than 1 micron per 10
seconds, Stable will appear to the left of the micron reading.
Additional Tips:
To achieve a deep vacuum as quickly as possible:
1 Use the shortest hoses with the largest diameter available.
2 Remove schrader cores and core depressors. Core removal tools
like the "MegaFlow Valve Core Removal Tool" can be purchased
from Appion, Inc. to help with this process.
3 Inspect the rubber seals at both ends of your hoses for damage
that may result in leakage.
4 Do not use hoses with low loss ttings when evacuating or
pulling a vacuum on a system.
Set Vacuum Alarms
1 Hold ALARM for one second to enter Alarm Set mode.
2 Press ALARM to toggle between Alarm Hi and Lo.
3 Use UP or DOWN ARROW to select the value and press ENTER
to lock in each digit. Once last digit in Alarm Lo is locked, your
SMAN4 will automatically revert to normal testing mode.
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SMAN4 to HVAC Guide® (HG3)
Your SMAN4 can wirelessly send measurements to the HG3 System
Analyzer (FW v 3.42 or higher) for deeper analysis and data logging. Your
SMAN4 can send suction and liquid line pressures and temperatures,
superheat/subcooling calculations, indoor wet bulb and outdoor drybulb
temperatures with target superheat calculation (if SMAN4 is wirelessly
receiving these measurements), and vacuum micron measurements
(for datalogging) all in real-time. From the HG3, you can print reports
on a PC to hand to customers and/or le for your own record-keeping.
The HG3 System Analyzer can receive wireless measurements from
the SMAN4 to the following tests: CheckMe!®, Superheat, Subcooling,
Charging Jacket, and Data Logger.
1 Connect your SMAN4 to the system for measurement of suction
and liquid line pressures and temperatures.
2 Sync wireless devices to SMAN4 to receive indoor wet bulb and
outdoor dry bulb measurements. See Target Superheat section for
wireless IDWB and ODDB instructions.
3 Press circular button on SMAN4 to enter Superheat/Subcooling, T1
T2 Direct, or Saturation temperature modes.
4 Hold the SYNC button until a beep is heard (>1 sec). Wireless
signal bars icon in lower right corner of display will appear and
begin searching.
5 Set HG3 to one of the following tests: CheckMe!®, Superheat,
Subcooling, Charging Jacket, or Data Logger.
6 With HG3, highlight a test line that corresponds to one of the
measurements being sent from the SMAN4.
7 Hold SYNC button on HG3 until search pattern shows on right of
test line. All receivable real-time measurements from the SMAN4
will populate corresponding test lines on HG3.
8 Press OUTPUT on HG3 to view deeper analysis of the system.
Note: The SMAN4 and HG3 must be within 10 feet (3m) for initial
sync to occur. Once synced, the wireless range is 100 feet (30m).
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Specifications
Mini-USB port: For updating to newer versions of rmware
Display size: 5 inches (diagonal)
Backlight: Blue (On for 1 minute unless turned o manually)
Battery: 6 x AA (Battery life below based on alkaline type)
Battery life: Approx. 135 hours (without backlight and wireless)
Low battery indication: is displayed when the battery
voltage drops below the operating level
Auto shut o: 30 minutes of inactivity when APO is activated
Over range: "OL" or "-OL" is displayed
Operating environment: 32°F to 122°F (0°C to 50°C) at <75% RH
Temperature coecient: 0.1 x (specied accuracy) per °C (0°C to
18°C, 28°C to 50°C), per 0.6°F (32°F to 64°F, 82°F to 122°F
Storage temperature: -4°F to 140°F (-20°C to 60°C), 0 to 80% RH
(with battery removed)
Weight: 4.03 lbs (1.83 kg)
Pressure
Sensor type: Absolute pressure sensors
Connector type: Standard 1/4" and 3/8" NPT male are tting
Range: 29” HgV to 580psig (English), 74 cmHgV to 0 to 4000KPa
(Metric), 4.000MPa (Metric), and 40.00bar (Metric)
Resolution: 0.1 psi/inHg; 1 kPa/cmHg; 0.001MPa; 0.01bar
Accuracy: 29” HgV to 0” HgV: ±0.2” HgV
74 cmHgV to 0 cmHgV: ±1 cmHgV
0 to 200 Psig: ±1 Psi; 0 to 1378 KPa: ±7 KPa; 0 to 1.378MPa:
±0.007MPa; 0 to 13.78 bar ±0.07 bar
200 to 580 Psig: ±0.3%+1 Psi; 1378 to 4000KPa: ±0.3%+7 Kpa;
1.378 to 4.000MPa: ±0.3%+0.007MPa; 13.78 to 40.00bar:
±0.3%+0.07bar
Maximum overload pressure: 800 psig
Units: Psig, kPa, MPa, bar, inHg, and cmHg
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Microns for Vacuum
Connector type: Standard 1/4" and 3/8" NPT male are tting
Range: 50 to 9999 microns of mercury
Resolution: 1 micron (50 to 2000 microns), 250 microns (2001 to
5000 microns), 500 microns (5001 to 8000 microns), 1000 microns
(8001 to 9999 microns)
Accuracy: ±10% or ±10 microns, whichever is greater (50 to 1000
microns)
Maximum overload pressure: 580 psig
Units: Microns of mercury
Temperature
Sensor type: Type K thermocouple
Range: -95°F to 999.9°F (-70°C to 537.0°C)
Resolution: 0.1°F/°C
Accuracy: ±(1.0°F) -95°F to 199.9°F; ±(0.5°C) -70°C to 93°C
±(2.0°F) 200°F to 999.9°F; ±(1.0°C) 93°C to 537.0°C
Note: All accuracies are after a eld calibration.
Wireless
Wireless range: 1 to 100 feet (30m)
Initial wireless sync range: More than 1 foot and less than 10 feet
Wirelessly transmit to Fieldpiece HG3
Wirelessly receive indoor wet bulb (IDWB) and outdoor dry bulb
(ODDB) from Fieldpiece transmitters
Note: If the indoor wet bulb or outdoor dry bulb measurements result
in an uncalculable TSH, "OL" or "-OL" will display in the lower left
corner.
Note: If any one of the parameter IDWB or ODDB is synced wirelessly
to SMAN4 then the other parameter ODDB or IDWB has to be
synced wirelessly too.
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Maintenance
Clean the exterior with a dry cloth. Do not
use liquid.
Battery Replacement
The battery must be replaced when the
battery life indicator is empty. Turn your
SMAN4 o and replace with 6 AA batteries.
Cleaning the Micron Sensor
Over time, the vacuum sensor of the SMAN4
may become contaminated with dirt, oil, and
other contaminants introduced from pulling
vacuums.
1 Never use an object such as a cotton swab to clean the sensor,
you may cause damage to the sensor.
2 Open all knobs/valves, and cap all the ports except for the VAC
port.
3 Drop enough Isopropyl (rubbing) alcohol into the VAC port using
an eye dropper or funnel so that it can ush out contaminants.
4 Cap VAC port and gently shake your SMAN4 upside down to clean
sensor.
5 Turn right side up. Open a port to pour out the rubbing alcohol
and open all ports to allow sensors to dry out. Drying usually
takes about an hour.
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Calibration
Temperature
To calibrate your SMAN4 temperature
thermocouples, adjust the pot on the front of
the meter labeled T1 Cal or T2 Cal. The best way
to calibrate is to match to a known temperature.
Ice water is very close to 32°F and is readily
available. Accuracies of one degree or better
are obtained through eld calibration.
1 Stabilize a large cup of ice water by stirring. Pure, distilled water
will be the most accurate.
2 Press the circular button until your SMAN4 enters Direct
Temperature (T1 T2) mode.
3 Immerse the temp probe in ice water from T1 and adjust the
T1 Cal pot with a at head screwdriver and let it stabilize, keep
stirring.
4 Repeat Step 3 for temp probe in T2.
Pressure Zeroing
To calibrate your SMAN4 pressure sensors to
atmospheric pressure, ensure that your SMAN4
is disconnected from any pressure source and at
equilibrium with the ambient pressure.
1 SMAN4 must be in Superheat/Subcooling, Saturation, or T1 T2
Direct mode.
2 Press the CAL Atmospheric Pressure button and your SMAN4 will
set the zero point of pressure to the ambient pressure.
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Advanced Pressure Calibration
Your SMAN4 has the ability to perform a linear
adjustment of the pressure sensors based on
refrigerant type, temperature, and pressure.
Calibration setup: For best results, perform both the Temperature
and Pressure Zeroing procedures. See Calibration section for
details. This will ensure pressure readings are zeroed and
thermocouple is properly calibrated to the T1 port of the SMAN.
Calibration to T2 port is not necessary for this calibration.
The refrigerant cylinder should be stored in a stable ambient
environment for at least 24 hours before calibration.
1 Press circular button until your SMAN4 enters T1 T2 Direct mode.
2 Plug in a Type K thermocouple into T1. (A bead type
thermocouple, like the ATB1, is recommended.)
3 Connect the SMAN4 to a refrigerant cylinder of a known, single
refrigerant using an EPA approved service hose. Be sure to open
both HIGH and LOW side valves on your manifold and cap the
unused ports. (If caps are not available you can connect both
ends of a refrigerant hose to the two unused caps. Note: Some
refrigerant will remain in the hoses which will need to be
recovered.)
4 Press the REFRIGERANT button to match the refrigerant of the
cylinder you are using.
5 Attach bead-type thermocouple to the side of the cylinder using
tape. It is recommended to attach in the middle of the cylinder.
Important: Let the temperature of the thermocouple stabilize to
the refrigerant temperature for 1 to 2 minutes or until stable.
6 Open the refrigerant cylinder. The pressure inside cylinder should
now be displayed on both HIGH and LOW side pressure sensors.
7 Press the CAL Test Pressure button. If successful, "Good" will
display for 3 seconds. If failed, "Err" will display for same time.
17
Your SMAN checks with its built-in P-T charts to compare the
temperature of the refrigerant in the tank to the vapor saturation
temperature based on the refrigerant you selected. If the measured
pressures on your SMAN are within ±3psi of the P-T chart pressure
corresponding to the vapor saturation temperature, the SMAN will
adjust the pressure sensor linearity to match the P-T chart.
Possible causes of failed "Err" pressure calibration:
1. Refrigerant tank was not stored in stable ambient conditions for at
least 24 hours.
2. Thermocouple attached to refrigerant tank was not properly
calibrated to T1 port of SMAN.
3. Thermocouple was plugged into wrong port T2 instead of T1.
4. Incorrect refrigerant was selected on the SMAN.
Refrigerants
The P-T charts of the fo llowing 44 refriger ants come pre-prog rammed
into your SMAN4. In your SMAN4 the re frigerants are lis ted in order of most
commonly used. He re, they are listed in numerical o rder for easy reference.
R11, R113, R114, R12, R123, R1234YF, R124, R125, R13, R134A, R22,
R23, R401A(MP39), R401B, R402A, R402B, R404A, R406A, R407A,
R407C, R407F, R408A, R409A, R410A, R414B (Hotshot), R416A, R417A,
R417C (HOT SHOT 2), R420A, R421A, R421B, R422A, R422B(NU22B),
R422C(Oneshot), R422D, R424A, R427A, R434A(RS-45), R438A(MO99),
R500, R502, R503, R507A, R508B (Suva95)
WARNINGS
DO NOT APPLY MORE THAN 800 PSI TO ANY PORT ON THE MANIFOLD.
FOLLOW ALL EQUIPMENT MANUFACTURER'S TESTING PROCEDURES
ABOVE THOSE IN THIS MANUAL IN REGARDS TO PROPERLY
SERVICING THEIR EQUIPMENT.
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Limited Warranty
This meter is warranted against defects in
material or workmanship for one year from
date of purchase. Fieldpiece will replace or
repair the defective unit, at its option, subject
to verication of the defect.
This warranty does not apply to defects
resulting from abuse, neglect, accident,
unauthorized repair, alteration, or unreasonable
use of the instrument.
Any implied warranties arising from the sale of
a Fieldpiece product, including but not limited
to implied warranties of merchantability and
tness for a particular purpose, are limited to
the above. Fieldpiece shall not be liable for loss
of use of the instrument or other incidental or
consequential damages, expenses, or economic
loss, or for any claim of such damage, expenses,
or economic loss.
State laws vary. The above limitations or
exclusions may not apply to you.
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Obtaining Service
Call Fieldpiece Instruments for current costs
on our fixed price warranty service. Send
check or money order for the amount quoted.
Send your digital manifold, freight prepaid, to
Fieldpiece Instruments. Send proof of date and
location of purchase for in-warranty service.
The meter will be repaired or replaced, at the
option of Fieldpiece, and returned via least cost
transportation.
For international customers, warranty for
products purchased outside of the U.S. should
be handled through local distributors.
www.fieldpiece.com
© Fieldpiece Instruments, Inc 2013; v25
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