User Manual

ManualsBrandsFieldpiece ManualsAir Conditioning Tools & EquipmentFieldpiece SMAN360 3-Port Digital Manifold with Micron Gauge

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

C-Tick (N22675)

RoHS Compliant

Description

Your SMAN360 is the top of the line two-

valve Digital Manifold and Micron Gauge for

HVACR professionals. See all your pressures

and temperatures at the same time on the

redesigned large display with bright blue

backlight.

SMAN360 combines high precision, absolute

pressure sensors, a superheat/subcooling

calculator, true micron gauge for vacuum,

and dual temperature measurements. Your

SMAN360 calculates and displays target

superheat and actual superheat to verify proper

charge.

SMAN360 is designed to meet the demands

of HVACR eld service with a rugged rubber

boot for durability, a strong metal hanger for

easy storage and a form tting, water resistant,

padded nylon pouch. SMAN360 has a very

intuitive user interface and long battery life.

Your SMAN comes pre-programmed with

accurate P-T charts for 45 of the most common

refrigerants in the field so you are always

prepared for any job.

Fieldpiece

Digital Manifold &

Micron Gauge

OPERATOR'S MANUAL

Model SMAN360

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 conrm selection.

6 Press/hold to cycle through refrigerants.

7 Press to turn on/o the Hi/Lo vacuum

alarms and hold to change alarm settings.

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 o. Press to toggle backlight.

12 Press to enter Target Superheat set up mode.

13 Turn clockwise to close High side port.

14 Turn clockwise to close Low side port.

Functions

Superheat and Subcooling

Your SMAN360 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

SMAN360. Plug Type K thermocouple pipe clamps to SLT and LLT.

3 Connect your SMAN360 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

tank to the center port on SMAN360. Follow recommened

charging or recovery practices from equipment manufacturer.

Use the low side and high side valves on SMAN360 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 xed orice air conditioning

systems. Your SMAN will calculate the target superheat for you. Just

manually input the IDWB (indoor wet bulb) and ODDB (outdoor dry

bulb) temperatures into the SMAN.

Manually Input Temperatures

1 Press Target SH button to enter Target SH mode. IDWB will begin

blinking 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 UP or DOWN ARROW to change values and press ENTER

to lock in each digit.

4 Repeat steps 2 and 3 for the other temperature. 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 target superheat calculation.

Note: If the inputted temperature is out of the calculable range for

IDWB or ODDB an "Err" will ash 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.

Pulling a Vacuum

Follow all manufacturers’ evacuation procedures over those in this

manual.

1 Connect your SMAN360 to your vacuum pump and the system,

then power on your SMAN360.

2 Set up vacuum alarms. These will notify you when you've reached

your desired vacuum and stabilization levels. See Set Vacuum

Alarm instructions below.

3 Pull a vacuum on the system. SMAN360 will automatically sense

the negative pressure and begin to display in inHgV. Once the

vacuum levels are low enough, the display will automatically

change to show vacuum in microns. Once in micron mode the

inHgV readings will no longer display.

4 The rate at which the vacuum levels are changing will be

displayed in microns per minute. The smaller the rate of change,

the closer you are to stabilization.

Set Vacuum Alarms

1 Hold ALARM for 1 second to enter Alarm Set Mode. The rst digit

of LO alarm will blink.

2 Use ARROWS to change the blinking number. Press ENTER to

lock in a digit and move to the next digit. Repeat for all LO alarm

digits.

3 When LO alarm is complete, the rst digit of HI alarm will blink.

Use ARROWS to change the blinking number. Press ENTER to lock

in a digit and move to the next digit. Repeat for all HI alarm digits.

4 When all digits of HI alarm are locked in you will automatically

exit Alarm Set Mode and your target alarm values will be saved.

Note: Anytime while in Alarm Set Mode, you can press ALARM to

toggle between alarm HI set and alarm LO set. Hold ALARM to exit

Alarm Set Mode and save at any time.

Note: "Err" will show if you try to set the HI alarm lower than the LO

alarm, or the LO alarm higher than the HI alarm.

Activate Vacuum Alarms

1 Press ALARM to activate low alarm. Default is 500 microns.

Stopwatch will start. When low alarm target value is reached,

SMAN360 will beep and the stopwatch will restart from zero. You

can monitor how long the vacuum has been under your target.

2 Press ALARM again to deactivate low alarm and activate high

alarm. Default is 1000 microns. When high alarm value is

reached, SMAN360 will beep and the stopwatch will pause. You

can see how long it took to reach your target value.

3 Press ALARM again to deactivate high alarm.

Additional Evacuation Tips to Reach a Deeper Vacuum:

1 Use shortest vacuum rated hoses with 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.

5 When the vacuum pump is isolated from the system, a slow rise

in micron levels may signify moisture is still present in the system

but should eventually stablize. A continuous rise in microns levels

to atmosphere may indicate a leak in the hoses, the vacuum

pump connections or the system.

Auto Power O (APO)

To conserve battery life, your SMAN will power down after 30

minutes of inactivity. APO is activated by default and APO displays

above the battery icon. To deactivate, press and hold ENTER while

powering on the SMAN. When deactivated, APO will no longer show

above the battery icon.

LOW HIGH

Pressure (bar)

Pressure (pounds/in

)

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

Outdoor Dry Bulb

Indoor Wet Bulb

Static Target Superheat Calculation

Hours:Minutes or Minutes:Seconds

Battery Life

Auto Power O Enabled

Selected Refrigerant of System

Vacuum (Microns of Mercury)

Rate of change (Microns per Minute)

Set Mode

High Alarm

Low Alarm

3 4

LOW HIGH

99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

Summary of content (2 pages)

PAGE 1
Fieldpiece Quick Start Description 1 Install six AA batteries into rear battery compartment. 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 manifold and the system. 4 See real-time pressure and temperature measurements all at once! Digital Manifold & Micron Gauge OPERATOR'S MANUAL Model SMAN360 Your SMAN360 is the top of the line twovalve Digital Manifold and Micron Gauge for HVACR professionals.
PAGE 2
What is Superheat and Subcooling? Why Do I Need to Measure It? 11 Superheat is the difference between the actual temperature of the refrigerant (gas) as it leaves the evaporator and the boiling point of the refrigerant. After boiling, the refrigerant continues to heat up. The number of degrees it “heats up” after boiling is called the superheat. Under worst case conditions (low load for fixed orifice systems), the refrigerant in the evaporator boils off near the end of the evaporator coil.