Owner manual
www.mastercool.com
7
They are only examples to show what the manufacturer’s charts may look like. Follow all
manufacturer’s indications, instructions and warnings above those in this manual.
The indoor wet bulb measurement should be taken as close to the evaporator coil
inlet as possible. The outdoor dry bulb reading should be taken as close to the
condenser air inlet as possible.
Dry Bulb Temperature ˚F
REQUIRED SUBCOOLING ˚F
Wet Bulb Temperature ˚F
57 59 61 63 65 67 69 71 73
75 25 24 23 22 21 20 19 18 17
80 24 23 22 21 20 19 18 17 15
85 23 22 21 20 19 18 16 15 14
90 22 21 20 19 18 16 15 14 12
95 21 20 19 18 17 15 13 12 10
100 20 19 18 17 15 13 12 10 8
105 19 18 17 16 14 12 10 8 6
110 17 16 15 13 12 10 8 6 4
115 15 14 13 12 10 8 6 4 2
Dry Bulb Temperature ˚F
REQUIRED SUPERHEAT ˚F
Wet Bulb Temperature ˚F
50 52 54 56 58 60 62 64 66 68 70 72 74 76
55 9 12 14 17 20 23 26 29 32 35 37 40 42 45
60 7 10 12 15 18 21 24 27 30 33 35 38 40 43
65 6 10 13 16 19 21 24 27 30 33 36 38 41
70 7 10 13 16 19 21 24 27 30 33 36 39
75 6 9 12 15 19 21 24 28 31 34 37
80 5 8 12 15 18 21 25 28 31 35
85 8 12 15 19 22 26 30 33
90 5 8 13 16 20 24 27 31
95 5 10 14 18 22 25 29
100 8 12 15 20 23 27
105 5 9 13 17 22 26
110 6 11 15 20 25
115 8 14 18 23
RECORDING FEATURES THROUGH THE MANIFOLD
• The manifold has the ability to record and store up to 24 hours of data and track up to 15
job sequences.
• Data that is stored in the manifold can be downloaded into Mastercool’s Data Logger
Program for analysis at a later time. To download the data please refer to the Data Logger
Program Instructions.
• To see data outputted in “real time” please follow the instructions provided with the
Mastercool Data Logger Software.
NOTE: When in recording mode the Auto-Off feature is automatically disabled.
RECORDING DATA
Turn the manifold ON and after the unit is initialized and the sequencing stops, you may
enter the record data mode
• RECORD data by pressing the BLT/REC button for 5 seconds until JOB1 appears on the
screen.
NOTE: The amount of recording time left will display in the right hand corner of the LCD.
Example: 24 hours
• Release the BLT/REC buttons and the letter R will begin to flash in the main display. This
remains flashing the entire time the manifold is recording.
Saturated
Temp.
High
Saturated
Temp.
PSI
Low
PSI
CHECKING THE STATUS OF THE RECORDING
• Press the ENTER + BLT/REC button for 3 seconds
• In RECORDING MODE the status will display the Job # you are currently recording and the
amount of recording time that you have left
• In REGULAR MODE the status will display the total number of jobs recorded and that the
status of recording is OFF.
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