18-AC125D1-1A-EN 16 Jun 2022
Supersedes (New)
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PRESSURE CURVES FOR 4TTX7060E1
FIRST STAGE
SECOND STAGE
TAM7B0C60H51
TAM7B0C60H51
Cooling with Thermal Expansion Valve
Cooling with Thermal Expansion Valve
LIQUID PRESSURE
(PSIG)
OUTDOOR TEMPERATURE (Degree F)
SUCTION PRESSURE
(PSIG)
OUTDOOR TEMPERATURE (Degree F)
COOLING PERFORMANCE CAN BE CHECKED WHEN THE OUTDOOR TEMP IS ABOVE 65 DEG F.
TO CHECK COOLING PERFORMANCE, SELECT THE PROPER INDOOR CFM, ALLOW PRESSURES TO STABILIZE. MEASURE INDOOR WET BULB
TEMPERATURE, OUTDOOR TEMPERATURE, LIQUID AND SUCTION PRESSURES. ON THE PLOTS LOCATE OUTDOOR TEMPERATURE (1);
LOCATE INDOOR WET BULB (2); FIND INTERSECTION OF OD TEMP. & ID W.B. (3); READ LIQUID (4) OR SUCTION (5) PRESSURE IN LEFT COLUMN.
EXAMPLE: FIRST STAGE
EXAMPLE: SECOND STAGE
(1) OUTDOOR TEMP. 82 F.
(1) OUTDOOR TEMP. 82 F.
(2) INDOOR WET BULB 67 F.
(2) INDOOR WET BULB 67 F.
(3) AT INTERSECTION
(3) AT INTERSECTION
(4) LIQUID PRESSURE @ 1160 CFM IS 307 PSIG
(4) LIQUID PRESSURE @ 1515 CFM IS 289 PSIG
(5) SUCTION PRESSURE @ 1160 CFM IS 138 PSIG
(5) SUCTION PRESSURE @ 1515 CFM IS 145 PSIG
INTERCONNECTING LINES
ACTUAL:
GAS - 1-1/8" O.D.
LIQUID PRESSURE SHOULD BE +/- 10 PSI OF CHART
LIQUID - 3/8" O.D.
SUCTION PRESSURE SHOULD BE +/- 3 PSIG OF CHART
DWG.NO.
4TTX7060E1
110
120
130
140
150
160
170
180
40
50
60
70
80
90
100 110 120
110
120
130
140
150
160
170
180
40
50
60
70
80
90
100 110 120
200
250
300
350
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450
500
40
50
60
70
80
90
100 110 120
200
250
300
350
400
450
500
40
50
60
70
80
90
100 110 120
(1)
(1)
(3)
(3)
(5)
(4)
(2)
(2)
INDOOR ENTERING
WET BULB CURVES
TOP TO BOTTOM 71,
67, 63 AND 59 DEG F.
INDOOR ENTERING
WET BULB CURVES
TOP TO BOTTOM 71,
67, 63 AND 59 DEG F.
INDOOR ENTERING
WET BULB CURVES
TOP TO BOTTOM 71,
67, 63 AND 59 DEG F.
INDOOR ENTERING
WET BULB CURVES
TOP TO BOTTOM 71,
67, 63 AND 59 DEG F.
(2)
(1)
(4)
(3)
(2)
(1)
(3)
(5)
Summary of Contents for 4TTX7
Page 25: ...18 AC125D1 1A EN 25 Section 17 Wiring Diagrams 2 3 Ton Units...
Page 26: ...26 18 AC125D1 1A EN PRINTED FROM D157615P04 REV A 2 3 Ton Units...
Page 27: ...18 AC125D1 1A EN 27 4 Ton Units...
Page 28: ...28 18 AC125D1 1A EN 4 Ton Units...
Page 29: ...18 AC125D1 1A EN 29 5 Ton Units...