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Operating Instructions
77
COND FAN TEST
SUP RET EVA
5.2C 5.0C 5.1C
1.3A 1.2A 1.3A
Condenser fan is turned on.
Amp draw is measured and compared to voltage and
frequency: 1.5 Amps at 60 Hz, 1.2 Amps at 50 Hz.
Condenser fan amperes are recorded in PTI log.
16, 17
10 seconds
REVERSE PHASE
TEST
SUP RET EVA
1.3C 1.0C 1.3C
1.3A 1.2A 1.3A
With condenser fan on, reverse phase selector relay is
energized. Condenser fan and compressor reverse
current is measured.
58
30 seconds
HEAT ELEMENT TEST
SUP RET EVA
1.3C 1.0C 1.3C
5.2A 5.1A 5.2A
Electric heaters are turned on.
Amp draw is measured and compared to voltage:
•
4.4 Amps approx. at 400V;
•
5.1 Amps approx. at 460V.
Heater amperes are recorded in PTI log.
10, 11
10 seconds
DEFROST TEST
SUP RET EVA
5.0C 12.0C 15.0C
5.2A 5.1A 5.2A
If evaporator temperature is below +10C, heater
remains on until evaporator temperature is above +18C.
20
1 hour
maximum
PRE COOL/HEAT TEST
SUP RET EVA
5.1C 5.0C 5.1C
2.3A 2.1A 2.3A
If the return air temperature is above +20C (68F), unit
operates in cool until the return sensor is less then +15C
(59F) or 1 hour.
If the return air temperature is below +5C (41F), unit
operates in heat until return temperature is above +5C
(41F) or 2 hours.
None
30 to 60
seconds
1 or 2 hours
maximum
COMPRESSOR TEST
AMB CON EVA
8.0C 15.0C 5.0C
9.1A 9.0A 9.1A
With compressor and condenser fan on, compressor is
operating at 100 percent capacity. Amp draw is
measured and compared to voltage. Compressor
amperes are recorded in PTI log.
Suction pressure sensor must read a decreasing signal
at min 0.15 bars (2.175 psi).
Discharge pressure sensor must read an increasing
signal of min 01.5 bars (2.175 psi).
6, 7
20 seconds
DIGITAL VALVE TEST
AMB CON EVA
8.0C 25.0C 2.0C
9.1A 9.0A 9.1A
With compressor on - if condenser temperature is above
+30C (86F)condenser fan is turned on. Digital valve is
turned on then off. Amp draw difference is measured
and verified to be minimum 1.4 amps.
119
20 seconds
VAPOUR INJ. TEST
AMB CON EVA
8.0C 25.0C 2.0C
9.1A 9.0A 9.1A
With compressor on, condenser and evaporator fans
are turned on for 30 seconds. If condenser fan
temperature is below 30C (86F) then the test is aborted.
Vapor injection valve is turned on. Amp draw difference
is measured and verified to be minimum 0.4 amps.
26
50 seconds
COMP HI PRESS TEST
AMB CON EVA
8.0C 45.0C 1.0C
9.1A 9.0A 9.1A
With compressor on, evaporator fan operates on high
speed until high-pressure cutout occurs or condenser
temperature is above +70C (158F).
Condenser fan starts and operates until compressor
starts.
53, 54
10 to 60
second
Plus 30
seconds
* Readings may vary depending on voltage and temperature
MAGNUM PTI Full Pretrip Test
LCD Display*
Description
Possible
Alarms
Duration
(Time)
Содержание 098916
Страница 2: ...MAGNUM TK 51122 4 MM Rev 6 02 06 Copyright 2004 Thermo King Corp Minneapolis MN USA Printed in USA...
Страница 5: ......
Страница 11: ...Table of Contents 10...
Страница 19: ...Service Guide 18...
Страница 28: ...Specifications 27 Figure 2 Physical Specifications AMA313...
Страница 41: ...Unit Description Features Options 40...
Страница 105: ...Operating Instructions 104...
Страница 155: ...Servicing The Unit 154...
Страница 187: ...Index 186...
Страница 189: ...Wiring and Schematic Diagrams Index 188...
Страница 190: ...189 Wiring Schematic...
Страница 191: ...190 Wiring Diagram Page 1 of 2...
Страница 192: ...191 Wiring Diagram Page 2 of 2...