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ARAMA DCIPT12, Инструкция по установке и руководство пользователя

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- 14-

 

 

 

 

DIAGNOSTIC CODES 

&  SOLUTIONS

 

 

The Diagnostic Maintenance provides detailed information on   PTAC   control operation and operational status including 

present modes, failures , airflow restriction warnings , operating  temperatures, and past failures

.

 

 

Failure  code

 

Content  of  defect

 

Solutions 

 

E1

 

Communication failure between 
indoor unit and outdoor unit 

Check the communication cables, make sure they are 
firmly connected. If the cables are broken, replace them. 

 

E2

 

Indoor ambient temperature 
sensor fault 

Check the sensor 

’s plug is firmly connected. If the sensor 

is broken, replace it. 

 

E3

 

Indoor coil temperature sensor 
fault 

Check the sensor 

’s plug is firmly connected. If the sensor 

is broken, replace it. 

 

 

E4

 

Indoor outlet temperature sensor 
failure or Indoor outlet air over 
heat protection in Electric heating 
mode 

Check if the indoor fan is running good and make sure no 
obstacle that blocks the air circulation. 
Check the sensor 

’s plug is firmly connected. If the sensor 

is broken, replace it. 

 

 

E5

 

 

IPM protection, include heat sink 
over heat protection 

Make sure indoor and outdoor units vents are not 
blocked, indoor fan and outdoor fan are running well 
and compressor will not overload. After removing any 
fault, power the unit on again for rest. 

 

E6

 

Outdoor ambient temperature 
sensor fault 

Check the sensor 

’s plug is firmly connected. If the sensor 

is broken, replace it. 

 

E7

 

Outdoor coil temperature 
sensor fault 

Check the sensor 

’s plug is firmly connected. If the sensor 

is broken, replace it. 

 

E9

 

Compressor discharge 
temperature  fault 

Check the sensor 

’s plug is firmly connected. If the sensor 

is broken, replace it. 

 

EC

 

 

DC compressor starting failure or 
compressor driving fault 

Check the DIP switches on the main board (3-position,in 
red color) is correct, it must matches the wiring diagram. 
Make sure the compressor power wires is firmly connected. 

 

EH

 

Indoor EEPROM fault, include 
EEPROM communication fault or 
data verification error 

 

Check the EEPROM chip is firmly plugged. If still not 
solve, replace the chip. 

 

 

P1

 

Over heat at indoor coil protection 
in HEATING (overload in heating). 
Over heat at outdoor coil protection 
in COOLING (overload at cooling). 

 

Make sure indoor and outdoor unit vents are not blocked 
and indoor fan and outdoor fan are both working well. 
Clear the air filter and the condenser after a long time use. 

 

 

P2

 

 

DC inverter module overheat,over 
current protection 

Make sure indoor and outdoor unit vents are not blocked 
and indoor fan and outdoor fan are both working well. Check 
the DIP switch on the main board (3-position, in red color) is 
correct, it must matches the wiring diagram. Make sure the 
compressor power wires is firmly connected. 

 

 

P4

 

 

 

Compressor discharge overheat 
protection (or compressor overheat) 

 

Make sure indoor and outdoor unit vents are not blocked 
and indoor fan and outdoor fan are both working well. 
Check the DIP switch on the main board (3-position, in 
red color) is correct, it must matches the wiring diagram. 

 

 

P7

 

 

 

Over voltage or under voltage 
protection 

 

Make sure the power supply is within the requirement 
(AC208/230V -15%+10%) .If power supply is OK, but still 
not solved, replace the inverter IPM. 

Содержание DCIPT12

Страница 1: ...s Often during installation or repair it is possible to place yourself in a position which is more hazardous than when the unit is in operation Remember it is your responsibility to install the product safely and to know it well enough to be able to instruct a customer in its safe use Safety is a matter of common sense a matter of thinking before acting Most dealers have a list of specific good sa...

Страница 2: ...n death the socket or terminal blocks for p o w e r s u p p l y t o t h e a i r conditioner include 277V and 115V and 208 230V series and the units that have LCDI power cord must connect a Ground Fault Circuit Interrupter 4 D u r i n g i n s t a l l a t i o n t h e w i r e connection must strictly follow the rule which is zero line and fire line of unit should be connected to the zero line and fir...

Страница 3: ...which operational mode is active FAN ON OFF System safety protections To ensure the system running safely electric control has the following protections for problem solving please refer to d i a g n o s t i c c o d e s s o l u t i o n s a n d troubleshooting sections A Outdoor unit overload protection in COOLING mode When condenser coil temperature exceeds the presetting point compressor decreases...

Страница 4: ...icated All units have two fan motors for quiet operation and maximum operating efficiency Motors are permanently lubricated to reduce maintenance and totally enclosed to keep dirt and water out of the motor windings Indoor Fan Speed Selections LOW HIGH Unit may be operated in low fan speed or high fan speed Some speed may not be present based on unit capacities LS Control front desk control The un...

Страница 5: ...ule Indoor Fan Electric heater Front and discharge grille Outdoor coil Inverter compressor Electronic control module assembly Power cord coverplate not show Control box Indoor coil WALL SLEEVE ASSEMBLY OPTIONAL ACCESSORY Two kinds of wall sleeve are optional for customers one is reassemble wall sleeve and the other one is welding integrated wall sleeve Removable Wall Sleeve The removable wall slee...

Страница 6: ...ficient space margins around the unit to facilitate maintenance and repairs refer to Figs 3 and 4 Chart 2 SUB FLOOR Fig 5 Note Do not remove the stiffener support from inside the wall case until the chassis is to be installed NOTE NO 1 means using field supplied sleeve angles 16 18 24 NO 2 means not using field supplied sleeve angles 1 2 Fig 3 In order for condensate water to drain properly inside...

Страница 7: ... set and require no adjustment 2 Check the indoor and outdoor grilles for obstructions to air flow The unit must be located where curtains furniture trees or other objects do not block the air flow to and from the unit If air is obstructed and or deflected back into the unit the air conditioner compressor may cycle on and off rapidly This could damage the compressor or possibly void the warranty A...

Страница 8: ...Receptacles Sub bases WARNING TO AVOID THE RISK OF PROPERTY DAMAGE PERSONAL INJURY OR FIRE USE ONLY COPPER CONDUCTORS WARNING TO AVOID PROPERTY DAMAGE PERSONAL INJURY OR DEATH DUE TO ELECTRICAL SHOCK DO NOT USE AN EXTENSION CORD WITH THIS UNIT WARNING TO AVOID THE RISK OF PROPERTY DAMAGE PERSONAL INJURY OR FIRE DO NOT INSTALL WITH POWER CORD STRETCHED OR UNDER A STRAIN AS THIS MAY CREATE LOOSE PLU...

Страница 9: ...mounted control panel Operation mode indicator Fan speed indicator Present time indicator TEMP indicator Indicate set temperature Keyboard locked indicator Timer time indicator TEMP setting button This button is used to sent the room temperature Pressing of or button the temperature setting is increased or decreased FAN SPEED button Press this button to select the high low autospeed of air deliver...

Страница 10: ...nd then close the back cover NOTE For some type this function may be not exist SENIOR OPERATION Under OFF mode hold COOL and FAN SPEED two keys at the same time continuously for 5 seconds This time display d0 indicates that system has entered the senior operation status COOL key is used to switch parameter code and parameter value or keys are used to switch parameter code or set parameter value ON...

Страница 11: ...pped If this switch is put to OFF position it will be no freeze protection 6 Electric memory Default setting is ON Fig 13 Shipping Screw Location If the unit is cut out of power during the operation when it is powered up again all last settings will be remembered and the operation will follow the last mode Manual turn on the unit operation mode will be the last settings If this switch is put to OF...

Страница 12: ...ONALINJURYOR DEATH 15 Discharge Air 55 Discharge Air M O N T H LY M AI N T E N AN C E AN D CLEANING IntakeAir Filters To properly maintain the operational performance of your PTAC unit it is extremely important that the inlet air filters be cleaned once per month or more often if operated in dusty or dirty locations or conditions The intake air filters are constructed of durable polypropylene The ...

Страница 13: ...ction schedule for the unit Take the unit out of the sleeve and thoroughly clean and rinse Be sure to include in the yearly cleaning the evaporator coil and condenser coil basepan and drain passages Scheduled maintenance can be accomplished by either qualified local maintenance staff or by an authorized servicer They must follow the instructions described in this manual Adverse Operating Condition...

Страница 14: ...er objects for proper operation Restricted discharge or intake air will reduce the unit s operational performance In severe airflow restrictions damage can occur to unit components such as the compressor electric heater or fan motor NORMAL OPERATING SOUNDS AND CONDITIONS Water trickling sounds Water is picked up and distributed over the coil This improves the efficiency and helps with water remova...

Страница 15: ... sensor is broken replace it E9 Compressor discharge temperature fault Check the sensor s plug is firmly connected If the sensor is broken replace it EC DC compressor starting failure or compressor driving fault Check the DIPswitches on the main board 3 position in red color is correct it must matches the wiring diagram Make sure the compressor power wires is firmly connected EH Indoor EEPROM faul...

Страница 16: ...minutes on starting the compressor after a power outage or restarting after it has been turned off to prevent tripping of the compressor overload Make sure that curtains blinds or furniture are not restricting or blocking unit airflow Reset to a lower or higher temperature setting Remove and clean filters Allow sufficient amount of time for unit to heat or cool the room Start heating or cooling ea...

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