Trane 4WCC4036E1000B Installation And Operation Manual page 25

INDOOR ENTERING
500
WET BULB CURVES
TOP TO BOTTOM
71, 67, 63 AND 59 DEG
450
400
(4)
350
300
250
200
40
170
INDOOR ENTERING
165
WET BULB CURVES
TOP TO BOTTOM
160
71, 67, 63 AND 59
155
150
145
140
(5)
135
130
125
120
115
110
40
COOLINGPERFORMANCECAN BECHECKED WHEN THEOUTDOOR TEMP IS ABOVE65 DEGF.
TOCHECK COOLINGPERFORMANCE, SELECT THEPROPER INDOOR CFM, ALLOW PRESSURES TOSTABILIZE.
MEASUREINDOOR WET BULB. TEMPERATURE, OUTDOOR TEMPERATURE, DISCHARGEAND SUCTION PRESSURES.
ON THEPLOTS LOCATEOUTDOOR TEMPERATURE(1); LOCATEINDOOR WET BULB (2);
FIND INTERSECTION OFOD TEMP. & ID W.B. (3); READ DISCHARGEOR SUCTION PRESSUREIN LEFT. COLUMN (4).
EXAMPLE: (1) OUTDOOR TEMP. 82 F.
(2) INDOOR WET BULB 67 F.
(3) AT INTERSECTION
(4) DISCHARGEPRESSURE@950 CFM CFM IS 332 PSIG.
(5) SUCTION PRESSURE@950 CFM CFM IS 147 PSIG.
18-BB41D1-1C-EN
Figure 9. 4WCC4030E1
Cooling
(3)
(1)
60 80 100
OUTDOOR TEMPERATURE (Degree F)
(3)
(1)
60 80 100
OUTDOOR TEMPERATURE (Degree F)
500
(2)
INDOOR ENTERING
475
DRY BULB CURVES
450 TOP TO BOTTOM
80, 70, AND 60 DEG F.
425
400
375
350
325
300
275
250
225
200
120
-5 5
140
INDOOR ENTERING
130
DRY BULB CURVES
TOP TO BOTTOM
120
80, 70, AND 60 DEG F.
110
(2)
100
90
80
70
60
50
40
30
120
-5 5
ACTUAL:
DISCHARGEPRESSURESHOULD BE+/- 10 PSI OFCHART
SUCTION PRESSURESHOULD BE+/- 3 PSIGOFCHART
Heating
15 25 35 45 55
15 25 35 45
DWG.NO. 4WCC4030E1
U U n n i i t t S S t t a a r r t t u u p p
65
55 65
25