Uniweld SmarTech USMAN5 - User Manual

10. Close (A) Low Side and (B) High Side manifold valves.
11. Disconnect (C) Blue EZ Turn Hose from refrigerant cylinder.
12. Disconnect (E) Red EZ Turn Hose from (C) Blue Hose EZ Access “T” tting.
13. The hoses have now been purged of non-condensable gases with the
refrigerant needed for service.
USER MANUAL - PART# USMAN5
Uniweld SmarTech Wireless Digital Manifold
FOR USE BY PROFESSIONALS. This manifold is designed for use by technically
trained refrigeration and air conditioning service technicians, due to the
unusually HIGH PRESSURE AND HAZARDOUS GASES IN ALL SYSTEMS,
misapplication could result in injury or death. The manufacturer warns
against the sale of this product to, or its use by, other than professional
trained personnel.
WARNING: Read carefully and completely before using equipment.
Keep for reference and store in back of protective case.
WARNING: Always wear safety goggles when working with refrigerants.
WARNING: CALIFORNIA PROPOSITION 65: This product contains chemicals
known to the State of California to cause cancer and birth defects or other
reproductive harm
Package Contents
1. SmarTech Wireless Digital Manifold w/ Rubber Boot
2. (1) Blue and (1) Red Temperature Clamp K-Type with 6 Ft. lead
3. (2) Thermocouple Bead Probes K-Type
4. (1) Red 5 Ft. EZ Turn® Anti-Blowback Hose
5. (1) Blue 5 Ft. EZ Turn® Anti-Blowback Hose with 1/4” EZ Access “T” Fitting™
6. (1) Black 5 Ft. Fast-Flo 3/8” Vacuum & Charging Hose with Ball Valve
7. (1) Adaptor 3/8” MF x 1/4” FF
8. SmarTech Protective Padded Case
9. (6) AA Batteries (not shown)
10. (10) Velcro Cable Tie Straps
OI0047
!
!
!
The SmarTech Digital Manifold is extremely accurate and can be used to pressure
test the hoses and manifold valves for leaks. Note: The POE oil used in R410A is very
aggressive and causes the rubber seals in the hoses and manifold valve stems to
wear rapidly; they may need replacing every couple of months depending on usage.
It is recommended to check your manifold and hoses regularly for leaks due to
normal wear on rubber gaskets and seats.
1. Connect (C) Blue EZ Turn Hose to manifold 45º hose holder tting.
2. Connect (E) Red EZ Turn Hose to manifold 45º hose holder tting.
3. Connect (D) Black 3/8” Hose with Ball Valve open to nitrogen regulator
using the 3/8”x1/4” adaptor.
4. Open (A) Low Side and (B) High Side manifold valves.
5. Open nitrogen tank valve and set delivery pressure between 400 to 500 psi.
6. Close (D) Black 3/8” Hose Ball Valve. A slight pressure drop is normal as the hoses
stretch under pressure but will stabilize after a couple of minutes.
7. Close (A) Low Side and (B) High Side manifold valves.
8. If digital pressure readings are stable the hoses and manifold are
functioning properly.
9. If the pressure reading continues to decrease there is a leak in the hoses or
manifold that must be repaired. Determine origin of the leak and replace
the gaskets and O-rings as needed. Repeat pressure test.
Manifold and Hoses Leak Test
Prior to purging the hoses with the refrigerant needed for service it may be
necessary to discharge unwanted refrigerant or nitrogen from the hoses.
1. Open (A) Low Side and (B) High Side manifold valves.
2. Aim the (D) Black 3/8” Hose Ball Valve in a safe direction and open
the ball valve to discharge the unwanted refrigerant or nitrogen from the hoses.
3. The digital pressure readings for both Hi and Lo should read zero before
continuing to the next step of purging the hoses with refrigerant.
4. Connect (E) Red EZ Turn Hose to (T) Blue Hose EZ Access “T” tting.
5. Connect (C) Blue EZ Turn Hose to refrigerant cylinder.
6. Close (D) Black 3/8” Hose Ball Valve.
7. Open refrigerant cylinder valve.
8. Aim the (D) Black 3/8” Hose Ball Valve in a safe direction, open ball valve
and begin purging non-condensable gases.
9. Close (D) Black 3/8” Hose Ball Valve when all non-condensable gases have
been purged.
The SmarTech Digital Manifold is extremely accurate and can be used to
pressure test the system for leaks. Prior to pressure testing with nitrogen it
may be necessary to discharge unwanted refrigerant from the hoses.
1. Open (A) Low Side and (B) High Side manifold valves.
2. Aim the (D) Black 3/8” Hose Ball Valve in a safe direction and open
the ball valve to discharge the unwanted refrigerant from the hoses.
3. The digital pressure readings for both Hi and Lo should read
zero before continuing to the next step.
4. Connect (E) Red EZ Turn Hose to (F) High Side service tting.
5. Connect (C) Blue EZ Turn Hose to (G) Low Side service tting.
6. Connect (D) Black 3/8” Hose with Ball Valve open to nitrogen regulator
using the 3/8”x1/4” adaptor.
7. Open nitrogen tank valve and set delivery pressure to system manufacturer’s
recommended test pressure.
8. Close (D) Black 3/8” Hose Ball Valve. A slight pressure drop is normal as the
hoses stretch under pressure but will stabilize after a couple of minutes.
9. Close (A) Low Side and (B) High Side manifold valves.
10. If after a few minutes the pressure reading continues to decrease there
is a system leak. The leak must be repaired then repeat the system
pressure test.
11. If after a few minutes the digital pressure readings are stable the system is
leak-free.
12. Close the nitrogen cylinder valve.
13. Disconnect (D) Black 3/8” Hose from the nitrogen regulator.
14. Open (A) Low Side and (B) High Side manifold valves.
15. Aim the (D) Black 3/8” Hose Ball Valve in a safe direction and open
the ball valve to discharge the nitrogen from the system and hoses.
16. Proceed with evacuating the system.
Prior to charging a system with refrigerant the hoses must be evacuated or purged with
the refrigerant needed for service, see Discharge and Purge Hoses before proceeding.
1. Turn system o and connect (E) Red EZ Turn Hose to (F) High Side service tting.
2. Attach (H) Red Temperature Clamp to (F) High Side copper tubing.
3. Connect (C) Blue EZ Turn Hose to (G) Low Side service tting.
4. Attach (J) Blue Temperature Clamp to (G) Low Side copper tubing.
5. Connect (D) Black 3/8” Hose with Ball Valve closed to refrigerant cylinder.
6. If this is a new system installation, open (F) High Side and (G) Low Side
condenser service valves.
7.
Open (D) Black 3/8” Hose with Ball Valve and refrigerant cylinder valve.
8. Turn system on; SmarTech Superheat and Subcooling features can be used at this time
to properly charge the system for maximum eciency and optimal performance.
9. To add refrigerant open (A) Low Side manifold valve.
10. Close (A) Low Side manifold valve and let the system temperatures and pressures
stabilize. Check Superheat and Subcooling “Smart Charge Zone”, if additional
refrigerant is needed repeat steps 9 and 10 until the “Smart Charge Zone” is “Green” .
11.
Close (A) Low Side manifold valve when desired amount of refrigerant has
been added.
12. Close (D) Black 3/8” Hose Ball Valve and refrigerant cylinder valve.
13. Disconnect (D) Black 3/8” Hose with Ball Valve from refrigerant cylinder and
connect to manifold hose holder tting.
14. Disconnect (E) Red EZ Turn Hose and (C) Blue EZ Turn Hose from system and
connect to manifold hose holder ttings.
Prior to evacuating the system it may be necessary to discharge unwanted
nitrogen or refrigerant from the hoses, see Discharge & Purge Hoses steps 1-2
before proceeding.
1. Connect (E) Red EZ Turn Hose to (F) High Side service tting.
2. Connect (C) Blue EZ Turn Hose to (G) Low Side service tting.
3. Optional: Connect (Uniweld Part# UVG) Digital Vacuum Gauge
to (T) Blue Hose EZ Access “T” tting.
4. Open (A) Low Side and (B) High Side manifold valves.
5. Connect (D) Black 3/8” Hose with Ball Valve open to vacuum pump.
6. Evacuate system according to manufacturer’s specication.
7. Close (A) Low Side and (B) High Side manifold valves.
8. Close (D) Black 3/8” Hose Ball Valve and disconnect from the vacuum pump.
9. Turn vacuum pump o and proceed with charging system with refrigerant.
A
A
C
T
C
E
E
A
B
B
B
D
D
MENU PAIR
O
Enter
Right
––––
Hold
Left
––––
Max Min
Down
––––
–
Up
––––
+
Digital Manifold
A
C
E
D
B
LOW
HIGH
MENU PAIR
O
Enter
Right
––––
Hold
Left
––––
Max Min
Down
––––
–
Up
––––
+
Digital Manifold
A
J
H
C
G
E
D
B
F
LOW
HIGH
NITROGEN
NITROGEN
REFRIGERANT
REFRIGERANT
VACUUM
Figure 2
Figure 3
Figure 1
MENU PAIR
O
Enter
Right
––––
Hold
Left
––––
Max Min
Down
––––
–
Up
––––
+
Digital Manifold
A
C
T
E
D
B
LOW
HIGH
CLOSED
T
T
T
Multi-function ¼”
Male Flare “T” Fitting
built into the blue hose
for Simplied
Purging and Charging
Refrigerant.
EZ Access “T” Fitting™
OPEN
Discharge and Purge Hoses
Discharge and Purge Hoses
Pressure Test System
Evacuating System
Charging System
See Figure 1
See Figure 2
See Figure 3
See Figure 3
See Figure 3
A
A
C
E
B
B
D
D
D
A
B
D
D
A
A
A
A
A
C
J
T
C
C
G
G
G
G
E
H
E
E
F
F
F
F
G
F
B
B
D
D
D
D
D
D
A
C
T
E
B
D
D
D
D

Summary

Package Contents and Safety

Package Contents

List of all items included in the SmarTech Wireless Digital Manifold kit.

Important Safety Warnings

Crucial warnings regarding safe operation, personal protective equipment, and chemical exposure.

Testing Procedures

Manifold and Hoses Leak Test

Procedure for pressure testing the manifold and hoses for leaks using nitrogen.

Discharge and Purge Hoses

Steps to safely discharge unwanted gases and purge hoses with refrigerant.

Pressure Test System

Detailed instructions for pressure testing a system with nitrogen to detect leaks.

System Operations

Evacuating System

Procedure for connecting to a vacuum pump to remove air and moisture from HVAC systems.

Charging System

Steps for charging the system with refrigerant, including Superheat/Subcooling checks.

Interface and Setup

Controls Overview

Explanation of the function for each button on the SmarTech Digital Manifold meter.

Display Features

Overview of temperature and pressure readings, units, and special indicators.

Menu Navigation

Guide to navigating the manifold's menu for preferences and settings.

Getting Started

Instructions for battery installation, powering on, connecting hoses, and app setup.

Home Screen and Icons

Home Screen Readings

Display of real-time Low/High side pressures, temperatures, and saturation values.

Smart Charge Zone

Explanation of color-coded zones for accurate system charge based on Superheat/Subcooling.

Home Screen Icons

Description of icons for app access, reporting, and settings on the home screen.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The Uniweld SmarTech Wireless Digital Manifold is a professional-grade tool designed for refrigeration and air conditioning service technicians. It is engineered to handle the high pressures and hazardous gases inherent in HVAC/R systems, emphasizing the need for use by professionally trained personnel to prevent injury or death from misapplication. The manufacturer strongly warns against its sale or use by individuals without professional training.

Function Description:

The SmarTech Digital Manifold is a highly accurate device used for measuring pressures and temperatures in HVAC/R systems. It facilitates various critical tasks including leak testing of hoses and manifolds, discharging and purging hoses, pressure testing entire systems, evacuating systems, and charging systems with refrigerant. A key feature is its wireless BLE (Bluetooth Low Energy) module, which allows it to connect to a compatible smart device (smartphone or tablet) via the free Uniweld SmarTech Digital Manifold app. This app provides real-time system pressures, temperatures, Superheat, and Subcooling readings, enhancing efficiency and diagnostic capabilities. The device also incorporates a "Smart Charge Zone" feature, which uses color-coded differentials to indicate whether a system is undercharged, properly charged, or overcharged, aiding in optimal system performance.

Important Technical Specifications:

• Pressure Measurement: Displays Low Side Pressure (Lo) and High Side Pressure (Hi) in multiple units: Psig (pounds/in²), Bar, kPa (kilo-Pascals), Kg/cm² (kilograms/centimeter²), inHg (inches of mercury), and cmHg (cm of mercury).
• Temperature Measurement: Displays Low Side Temperature (T1) and High Side Temperature (T2) in °C (Degree Celsius) and °F (Degree Fahrenheit).
• Refrigerant Profiles: Supports 109 refrigerant profiles, allowing technicians to select the appropriate one for the system being serviced and create a saved list for quick access.
• Power Source: Operates on (6) AA batteries.
• Wireless Connectivity: Features a wireless BLE module for connection to smart devices. The module strobes when searching for a device and indicates signal strength when connected.
• Hose Compatibility: Includes 5 Ft. EZ Turn® Anti-Blowback Hoses (red and blue) and a 5 Ft. Fast-Flo 3/8″ Vacuum & Charging Hose with Ball Valve. The blue hose includes a 1/4" EZ Access “T” Fitting™ for simplified purging and charging.
• Temperature Clamps: Comes with (1) blue and (1) red Temperature Clamp K-Type with 6 Ft. leads for accurate temperature readings.
• Thermocouple Probes: Includes (2) Thermocouple Bead Probes K-Type.

Usage Features:

• Intuitive Controls: Features a Power Button (hold for 2 seconds to power on/off), Backlight Button (on/off), Menu Button (accesses Auto Power, Pressure, and Temperature preferences), Left/Max/Min Button (cycles through options), Right/Hold Button (activates/deactivates hold), and Pair Button (on/off wireless BLE module).
• Display Features: The digital display shows T1, T2, Lo, Hi, and various pressure and temperature units. It also includes indicators for Auto Power Off (APO), Hold, Max/Min values, battery life, and wireless connection strength.
• Smart Device Integration: The SmarTech app allows for comprehensive system analysis, including Superheat (NON-TXV) and Subcooling (TXV) calculations, outdoor dry bulb, indoor wet bulb, return air dry bulb, supply air dry bulb, and Delta T readings.
• Smart Charge Zone™: Provides a visual guide (Red, Green, Blue zones) to ensure proper refrigerant charge, optimizing system efficiency and performance.
• Data Reporting: The app enables exporting SmarTech Verified Reports as PDF or CSV files, which can be emailed for tracking and saving. Images from the jobsite can be attached to reports.
• Project Management: Allows entry of company information, project details, and project notes, which are saved and automatically appear in reports, customizable for each job location.
• Settings Customization: Device settings for wireless and manual input, Superheat and Subcooling input, elevation, email preferences, and profile updates are accessible through the app. Options to restore to factory default and calibrate temperature and pressure are also available.

Maintenance Features:

• Hose and Manifold Leak Test: The manual provides a detailed procedure for pressure testing hoses and manifold valves with nitrogen to identify and repair leaks. This is crucial due to the aggressive nature of POE oil in R410A, which can cause rapid wear of rubber seals.
• Gasket and O-ring Replacement: If leaks are detected during testing, the manual advises replacing gaskets and O-rings as needed.
• Battery Installation: Instructions are provided for installing (6) AA batteries by removing the protective rubber boot, with a caution not to peel back and bend the boot to avoid stretching or deforming the material.
• Cable Management: Velcro cable tie straps are included to organize lead wires for temperature clamps on the blue and red hoses.
• Protective Case: The device comes with a SmarTech Protective Padded Case, which can be secured to the meter with Velcro straps, offering protection during transport and storage.
• Factory Default Reset: The app's settings allow for restoring the meter to factory default, which can be useful for troubleshooting or recalibration.

Uniweld SmarTech USMAN5 Specifications

General

Brand	Uniweld
Model	SmarTech USMAN5
Category	Digital Manifolds
Language	English