Trane 4TTZ0 User Manual

18-BC53D2-6 29
STEP 7 - Target 10–15 degrees of subcooling
using Section 14.1 as a guide.
NOTE: It is important to return in the spring or
summer to accurately charge the system in the
cooling mode with outdoor ambient above 55ºF.
STEP 8 - Verify typical performance.
Refer to System Pressure Curves in the Service
Facts to verify typical performance.
(Example only - see Service Facts)
20 MIN.
STEP 6 - Stabilization and completion.
1. Wait 20 minutes for the system condi-
tion to stabilize between adjustments.
NOTE: When the suction temperature is in line
with the suction gage pressure, the target super-
heat value will be 15 degrees.
2. Remove gages.
3. Replace service port caps to prevent
leaks. Tighten finger tight plus an ad-
ditional 1/6 turn.
PRESSURE CURVES FOR 4TWX5049E1000B
4TEE3F49C1 4TEE3F49C1
Cooling @ 1450 SCFM Heating @ 1350 SCFM
DISCHARGE 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, DISCHARGE 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 DISCHARGE OR SUCTION PRESSURE IN LEFT
COLUMN (4).
EXAMPLE: (1) OUTDOOR TEMP. 82 F.
(2) IND
OO
R WET BULB 67 F.
(3) AT INTER
S
E
C
TI
ON
A
C
TUAL:
(4) DISCHARGE PRESSURE @ 1450 CFM IS 323 PSIG DISCHARGE PRESSURE SHOULD BE +/- 10 PSI OF CHAR
T
(5) SUCTION PRESSURE @ 1450 CFM IS 140 PSIG SUCTION PRESSURE SHOULD BE +/- 3 PSIG OF CHAR
T
INTERCONNECTING LINES
GAS - 7/8" O.D.
LIQUID - 3/8" O.D.
DWG.NO. 4TWX5049E1
110
115
120
125
130
135
140
145
150
155
160
165
170
40 60 80 100 120
200
250
300
350
400
450
500
550
40 60 80 100 120
(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.
30
40
50
60
70
80
90
100
110
120
130
140
-5 5 15 25 35 45 55 65
200
250
300
350
400
450
500
-5 5 15 25 35 45 55 65
INDOOR ENTERING
DRY BULB CURVES
TOP TO BOTTOM
80, 70, AND 60 DEG F.
INDOOR ENTERING
DRY BULB CURVES
TOP TO BOTTOM
80, 70, AND 60 DEG F.

Trane 4TTZ0 Specifications

General

Brand	Trane
Model	4TTZ0
Category	Air Conditioner
Language	English