Dometic 630025 Instructions d'exploitation Page 46
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- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
46
Open the pressure relief valve on the vacuum pump. This
allows the major contaminants from the sealed system to
escape into the atmosphere rather than enter the oil in the
vacuum pump.
Both the low and high side valves on the compound gauge set
should be opened and the vacuum pump turned on.
After five minutes, close the pressure relief valve on the
vacuum pump. Check the blue gauge after running the vacuum
pump for 10 minutes. A vacuum reading of zero to 10 inches
would indicate a leak in the system or the hose connections.
Check all hose connections for tightness. If the low side gauge
does not change, there is a leak in the sealed system. Locate
the leak and correct it before proceeding.
If the blue low side gauge is well below 10 inches of vacuum,
continue the evacuation for at least 40 to 45 minutes or until
you have a dry systemyou have a dry system
you have a dry systemyou have a dry system
you have a dry system.
SERVICE
GAUGES
RED HOSE
BLUE HOSE
YELLOW
HOSE
VACUUM
PUMP
SERVICE
GAUGES
CHARGE
CYLINDER
ELECTRONIC
LEAK DETECTOR
YELLOW
HOSE
RED
HOSE
BLUE
HOSE
At this time there should be a good, deep evacuation, or dry
atmosphere inside the sealed system. Close both the low and
high side valves on the compound gauge set and turn off the
vacuum pump.
Disconnect the yellow colored hose at the vacuum pump and
connect it to the bottom port or connection on the charging
cylinder. Open the valve on the cylinder.
For the correct amount of R-22 refrigerant charge, check the
data plate of the air conditioner you are working on. To
compensate for the red liquid line, on the gauge set (approx.
30—36 inches long), add one ounce to the data plate amount.
You are now ready to do a weighted charge.
The air conditioner charge is critical and must be exact for
proper cooling.
Allow the refrigerant charge to equalize by waiting 10 minutes
before starting the system. After 10 minutes, do a cooling
performance test to determine whether the problem was in the
amount of charge or within the components of the system.
Now the blue low side and the red high side lines should be
disconnected. Make sure that the air conditioner connection is
sealed before removing the lines. The process tube can be
pinched off in two places; the charging port cut off, and the end
of the tube brazed for a hermetically sealed system.
SERVICE
GAUGES
CHARGE
CYLINDER
- BASEMENT (SINGLE COMPRESSOR) 5
- HEAT PUMP SECTION: 5
- BASEMENT (DUAL COMPRESSOR) 7
- AIR CONDITIONER SECTION: 7
- Continued 10
- MODEL 390XX.XXX SECTION 14
- MODEL 391XX.XXX SECTION 15
- MODELS 393XX.XXX SECTION 16
- MODEL 39224.601 SECTION 18
- MODEL 39424.601 SECTION 19
- DUO-THERM AIR CONDITIONERS 21
- PROPER THERMOSTAT 24
- LOCATION 24
- 1, 3, 4 Near Heat Sources 25
- 2 Near Drafts or Heat source 25
- 5, 6 Near Drafts 25
- 7 On an Outside Wall 25
- 2B. DC VOLT REQUIREMENTS 26
- 4B. WIRING 26
- HEAT PUMP 27
- 3105024.008 30
- 13B. TYPICAL WIRING DIAGRAM 31
- FOR MODELS 390XX.XXX 31
- 14B. TYPICAL WIRING DIAGRAM 31
- FOR MODELS 391XX.XXX 31
- 1C. BLOWER MOTOR 34
- 2C. RUN CAPACITOR 35
- 3C. START CAPACITOR 35
- 5C.COMPRESSOR 36
- 6C. OVERLOAD PROTECTOR 37
- 7C. COLD (FREEZE) CONTROL 37
- 8C. HEATER 37
- 9C. SHORT CYCLE 38
- 10C. AIR FLOW OBSTRUCTION 38
- 11C. AIR DISTRIBUTION SYSTEM 38
- REGISTERS 39
- INDOOR SECTION 41
- GRILLS AND REGISTERS: 41
- C. BASEMENT UNITS 42
- MODELS 39224 AND 39424 42
- EVAPORATION SECTION 43
- 12C. OTHER 44
- 13C. SEALED SYSTEM 45
- CYLINDER 46
- 14C. SEALED SYSTEM PROBLEMS 47
- PRE-WIRED F OR OPT. HEAT 49
- TEMPERATURE SL IDE SET 50
- AT 70 DEGREES 50
- 4D. DC VOLTAGE REQUIREMENTS 53
- 5D. COMPONENTS 53
- ARROW F OR 55
- AC W HITE 56
- TO A .C. W HITE 57
- E. OPERATION 58
- 1E. THE COOLING MODE 58
- 2E. THE HEATING MODE: 58
- 3E. GENERAL INFORMATION 59
- 4E. MECHANICAL CONTROLS 60
- 5E. ELECTRONIC (DIGITAL) 60
- CONTROLS 60
- 6E. BIMETAL CONTROLS 62
- 7E. DC VOLT REQUIREMENTS 63
- COMPONENTS 63
- 8E. SELECTOR SWITCH 63
- 9E. THERMOSTAT 64
- HEAT PUMPAUX HEAT 67
- CABLE ASSEMBLY CONNECTOR 68
- 11E. CHANGEOVER THERMOSTAT 71
- 12E. RELAY BOARD 71
- RELAY BOARDRELAY BOARD 72
- RELAY BOARD 72
- 14E. REVERSING VALVE 73
- 15E. RELAY, FAN SPEED (DPST) 73
- & HEAT PUMPS 74
- DIGITAL THERMOSTAT OPERATION 75
- 4F. MODEL 39224.601 76
- THERMOSTAT:THERMOSTAT: 77
- THERMOSTAT: 77
- ADJUSTING Setpoint 79
- 6F.DC VOLT REQUIREMENTS 80
- 7F.COMPONENTS 80
- THERMOSTATTHERMOSTAT 85
- THERMOSTAT 85
- Y1 Y2 GL GH W 86
- THERMOSTAT CONNECTIONS 87
- 8F. CABLE ASSEMBLY 94
- 9F. REVERSING VALVE 95
- 10F. TRANSFORMER 96
- 11F. RELAY BOARD 96
- 13F. CHANGEOVER THERMOSTAT 96
- 13F. TIME DELAY RELAY 97
- 14F. RELAY 97
- OPERATION 100
- GENERAL INFORMATION 101
- C. HEAT PUMP OPERATION 102
- D. FURNACE MODE OPERATION 102
- J. STAGE CONTROL OPERATION 104
- K. AUX. HEAT 105
- M. RESET 105
- A. ONE COMFORT ZONE 106
- 2G. CONFIGURATION 106
- B. TWO COMFORT ZONES 114
- C. THREE COMFORT ZONES 126
- D. FOUR COMFORT ZONES 126
- 3G. DC VOLT REQUIREMENTS 127
- 4G. COMPONENTS 127
- 2. CABLE ASSEMBLY 128
- 4. AMBIENT SENSOR 129
- 5. REMOTE SENSOR 129
- 3. RELAY, 2-POLE 129
- 6.AC POWER MODULE BOARD 130
- 8. ELECTRIC HEATER ASSEMBLY 133
- 9. RELAY 9T91/120V) 133
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