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| 48HE - 2 TON CHARGING CHART |
| F | C | ||
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| 125 | 52 | |||
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| 115 | 46 |
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| 105 | 41 |
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| Suction Line Temperature (deg C) |
| 95 | 35 | ||
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| 85 | 29 | |||
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| 5.5 | 10.5 | 15.5 | 20.5 | 25.5 | 75 | 24 |
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| 105.0 |
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| 100.0 |
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| 698.0 |
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| |
(psig) | 95.0 |
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| 648.0 | (kpa) |
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| |||
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| ||
Line Pressure | 90.0 |
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| Line Pressure |
85.0 |
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| 598.0 | ||
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| |||
80.0 |
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| 548.0 | ||
Suction | 75.0 |
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| Suction |
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| 498.0 | ||
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| |
| 70.0 |
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| 65.0 |
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| 448.0 |
|
| 42 | 52 | 62 | 72 |
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Suction Line Temp (deg F)
C06148
Fig. 68 --- Cooling Charging Chart,
Standard 48HE003
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| 48HE - 3 TON CHARGING CHART | F | C | ||||
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| 115 | 46 | |||||
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| 105 | 41 |
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| 95 | 35 |
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| Suction Line Temperature (deg C) | 85 | 29 | ||||
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| 75 | 24 | |||||
| 6.1 |
| 11.1 |
| 16.1 |
| 21.1 |
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| 95.0 |
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| 648.2 |
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| |
(psig) |
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| (kpa) |
Pressure | 85.0 |
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| 598.2 | Pressure |
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Line |
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| 548.2 | Line |
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Suction | 75.0 |
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| Suction |
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| 498.2 | ||
| 65.0 |
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| 448.2 |
|
| 43 | 48 | 53 | 58 | 63 | 68 | 73 | 78 |
|
Suction Line Temp (deg F)
C06149
Fig. 69 --- Cooling Charging Chart,
Standard 48HE004
48HE - 4 TON CHARGING CHART | F | C |
115 | 46 | |
| 105 | 41 |
| 95 | 35 |
| 85 | 29 |
Suction Line Temperature (deg C) | 75 | 24 |
| 5.6 |
| 10.6 | 15.6 |
| 20.6 |
| 25.6 |
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| 692.0 |
|
(psig) | 97.0 |
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| (kpa) |
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| 642.0 | ||
Pressure |
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| Pressure | |
87.0 |
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| ||
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| 592.0 | ||
Line |
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| Line | |
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Suction | 77.0 |
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| 542.0 | Suction |
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| |||
| 67.0 |
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| 492.0 |
|
| 42 | 47 | 52 | 57 | 62 | 67 | 72 | 77 |
|
Suction Line Temp (deg F)
C06150
Fig. 70 --- Cooling Charging Chart,
Standard 48HE005
|
| 48HE - 5 TON CHARGING CHART | F | C | |||||
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| 115 | 46 | ||||||
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| 105 | 41 |
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| 95 | 35 |
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| Suction Line Temperature (deg C) | 85 | 29 | ||||
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| 75 | 24 | |||||
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| ||
| 0.0 | 5.0 |
| 10.0 | 15.0 |
| 20.0 | 25.0 |
|
| 115.0 |
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| 810.0 |
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| |
(psig) | 105.0 |
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| 710.0 | (kpa) |
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Pressure | 95.0 |
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| 610.0 | Pressure |
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85.0 |
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Line |
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| Line | |
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| 510.0 | ||
Suction | 75.0 |
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| Suction |
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| 410.0 | ||
| 65.0 |
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| |
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| |
| 55.0 |
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| 310.0 |
|
| 42 | 47 | 52 | 57 | 62 | 67 | 72 | 77 |
|
Suction Line Temp (deg F)
C06151
Fig. 71 --- Cooling Charging Chart,
Standard 48HE006
TO USE COOLING CHARGING CHARTS, UNITS WITH
SYSTEM
Refer to charts (Fig.
Example (Fig. 64):
Leaving Condenser Pressure . . . . . . . . . . . . . . . . . 250 psig Leaving Condenser Temperature . . . . . . . . . . . . . . . 105°F
NOTE: When using the charging charts, it is important that only the subcooling/reheat dehumidification coil liquid line solenoid valve be energized. The subcooling/reheat dehumidification coil liquid line solenoid valve MUST be energized to use the charging charts and the outdoor motor speed controller jumpered to run the fan at full speed.
Step 10 —Flue Gas Passageways
To inspect the flue collector box and upper areas of the heat exchanger:
1.Remove the combustion blower wheel and motor assembly according to directions in
2.Remove the 3 screws holding the blower housing to the flue cover.
3.Remove the flue cover to inspect the heat exchanger.
4.Clean all surfaces as required using a wire brush.
Step 11 —Combustion-Air Blower
Clean periodically to ensure proper airflow and heating efficiency. Inspect blower wheel every fall and periodically during heating season. For the first heating season, inspect blower wheel bimonthly to determine proper cleaning frequency.
To inspect blower wheel, remove draft hood and screen. Shine a flashlight into opening to inspect wheel. If cleaning is required, remove motor and wheel as follows:
1.Slide burner access panel out.
2.Remove the 5 screws that attach
3.Slide the motor and blower wheel assembly out of the blower housing. The blower wheel can be cleaned at this point. If additional cleaning is required, continue with Steps 4 and 5.
4. To remove blower from the motor shaft, remove
2setscrews.
5.To remove motor, remove the 4 screws that hold the motor to mounting plate. Remove the motor cooling fan
48HE,HJ
55