Fieldpiece HG3 - Wireless HVAC Guide System Analyzer - Manual (Page 21)

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5.1
CheckMe!®
The CheckMe!® test is included on model HG2 and HG3. It is available
for purchase on model HG1.
CheckMe!® evaluation was developed by Proctor Engineering Group and
is the most advanced real-world method for troubleshooting A/C systems.
It looks at the big picture to diagnose problems. Superheat, Subcooling, and
Target Evaporator Exit Temperature tests look at individual performance in-
dicators to determine if they are within proper range. CheckMe!® looks at the
system as a whole to give a more complete diagnosis. CheckMe!® saves time
and money by quickly diagnosing a range of potential problems or even mul-
tiple problems. CheckMe!® recommends actions to tune the air conditioner
or heat pump to its optimum performance with minimal retests. This leads
to even fewer call backs.
The algorithms built into CheckMe!® are based on the real world test data
of over 250,000 air conditioners. The testing procedure and accuracy of the
diagnosis have been refined over many years by Proctor Engineering. The
CheckMe!® switch position is a real time-saver because it can give you a more
accurate diagnosis than looking at individual aspects of the air conditioner.
Great way to avoid call-backs.
The CheckMe!® position has diagnoses that will help you pinpoint prob-
lems with the system. Besides providing better diagnoses, it also checks the
test numbers and warns you if there is a likely testing error. In these cases,
you will want to retake some measurements.
CheckMe!® in the HG3 will analyze with almost any amount of data.
The more information supplied, the more accurate and comprehensive the
diagnoses. CheckMe!® determines the current state of the equipment. It is
recommended that you pretest before repairs and test after repairs to confirm
the improvement.
5.2 CheckMe!® INPUT FORM
Below is a picture of the extended CheckMe! INPUT FORM. The fol-
lowing sections cover each part of the INPUT FORM in more detail. Refer
to the page numbers in the blue boxes.
Clear
Input Output Sync
Recall
Enter
Save
MAX 30VDC
24VAC
CONNECT ONLY TO
ACCESSORY HEADS!
HVAC Guide
Fieldpiece HG3
SETUP
Target
Evaporator
Logger
Light
Exit Temp
CFM
Display
Superheat
Subcooling Combustion
CheckMe!
Data
Service
Clear
Input Output Sync
Recall
Enter
Save
MAX 30VDC
24VAC
CONNECT ONLY TO
ACCESSORY HEADS!
HVAC Guide
Fieldpiece HG3
SETUP
Target
Evaporator
Logger
Light
Exit Temp
CFM
Display
Superheat
Subcooling Combustion
CheckMe!
Data
Service
INPUT FORM
Sys Type :AC
Grant and Sys Info:
None
INDOOR UNIT
Meter Device:TXV/EXV
Return DB: 71.7˙F
Return WB: 60.8˙F
Supply DB: 52.3˙F
OUTDOOR UNIT
Refrigerant:R-22
Rated Amps: 17.0A
Target Subcool: 12˙F
SL Pressure: 58.0psig
SL Temp: 42.2˙F
LL Pressure: 220.1psig
LL Temp: 90.1˙F
OD Dry Bulb: 86.0˙F
Cond Amps Draw: 16.0A
TRUE FLOW:No
CustomerID:__JONES123
Units:English
12/31/2011 11:59PM
OUTPUT FORM
Low airflow, increase
airflow until actual
temp split matches
target temp split.
Actual temp split is
19.4˙F and target
temp split is
18.2˙F.
See Section:5.404
Overcharged, recover
refrigerant until
actual subcooling
reaches target
subcooling.
Actual subcooling is
17.9˙F and target
subcooling is 12.0˙F
See Sections:5.511
Condenser airflow OK.
See Sections: 5.701
Select the system type.
Options include: A/C, Heat
Pump or Geothermal. Page 42.
Generally used for utility
programs. See page 42.
All the parameters taken from
the Indoor Unit. Page 43.
All the parameters taken from
the Outdoor Unit. Page 44.
Trueflow is taken with a
TrueFlow grid. It's not used
with most utility programs.
It can be toggled on or off.
Page 43.
Enter the Customer ID using
the arrow buttons.
CheckMe! ® INPUT FORM.