Related Manuals for ACIQ PTAC Series
Summary of Contents for ACIQ PTAC Series
- Page 1 SERVICE MANUAL PTAC SERIES: 7K-15K BTU/H Models Covered: ACiQ-07PTC ACiQ-09PTC ACiQ-12PTC ACiQ-15PTC ACiQ-15PTC5 VERSION DATE: 09-25-23...
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Page 2: Table Of Contents
CONTENTS 1. Precaution P1-4 1.1 Safety Precaution 1.2 Warning P1-4 2. Functions and control panel. P5-7 3. Dimension 4. Wiring Diagram 5. Refrigerant Cycle Diagram 6. Electronic function P11-19 6.1 Terms and definitions 6.2 Electric Control working environment 6.3 Protection function 6.4 Fan only mode 6.5 Cooling mode 6.6 Heating mode... -
Page 3: Precaution
1. Precaution 1.1 Safety Precaution. ● To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. Before service unit, be sure to read this service manual at first. 1.2 Warning INSTALLATION ●... - Page 4 ● Do not install the product on a defective installation stand. It may cause injury, accident, or damage to the product. ● Be sure the installation area does not deteriorate with age. If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and personal injury.
- Page 5 ● Do not open the inlet grill of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.) There is risk of physical injury, electric shock, or product failure. ● When the product is soaked (flooded or submerged), contact an Authorized service center. There is risk of fire or electric shock.
- Page 6 OPERATIONAL ● Do not expose the skin directly to cool air for long periods of time. (Do not sit in the draft). This could harm to your health. ● Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a consumer air conditioner, not a precision refrigerant system There is risk of damage or loss of property.
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Page 7: Functions And Control Panel
2. Functions and control panel. The controls featured in this manual are representative of many available models. Your model may offer slightly different features. ·POWER - Press the POWER button to turn the unit on or off. ·MODE - Push this button to cycle through the modes from COOL-HEAT-FAN-COOL. The indicator light beside the "MODE" option will illuminate, identifying the mode selected. - Page 8 ·UP/DOWN BUTTONS ( + / - ) - Push the UP (or DOWN) button to increase (or decrease) the set temperature of the unit in cooling or heating mode. The temperature can be set by increments of 1℃ (1℉).The setting temperature appears in the display.
- Page 9 Error codes: AS- Open or short circuit of room temperature sensor (T1); ES- Open or short circuit of evaporator temperature sensor( T2 ); CS-Open or short circuit of condenser temperature sensor (T3); oS-Open or short circuit of outside temperature sensor(T4); HS- Open or short circuit of exhaust temperature sensor( T5 or T6);...
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Page 10: Dimension
3. Dimension Top View Front View WxHxD（mm) Dimension : WxHxD（inch) Dimension 1 1067x406x532 （no sleeve,rear grille,and rear net) 42.0x15.9x20.9 Dimension 2 1067x408x578 （no rear grille and rear net, but include sleeve) 42.0x16.0x22.8 Dimension 3 1067x408x588 （include sleeve and rear net) 42.0x16.0x23.1 Dimension 4 1067x408x606... -
Page 11: Wiring Diagram
4. Wiring Diagram... -
Page 12: Refrigerant Cycle Diagram
5. Refrigerant Cycle Diagram The figure below is a brief description of the important components and their function in what is called the refrigerant system. This will help to understand the refrigeration cycle and the flow of the refrigerant in the Heat Pump Cycle. CHECK VALVE LIQUID SIDE (Heating Model only) -
Page 13: Electronic Function
6. Electronic function 6.1 Terms and definitions TA: Temperature of indoor ambient(T1) TE: Temperature of evaporator(T2) TC: Temperature of condenser(T3) TO: Temperature of outdoor ambient(T4) TS: The set temperature. DAHT: Temperature of discharge (T5) DAHT: Temperature of discharge (T6) 6.2 Electric Control working environment Input voltage: 230/208V, 60Hz 6.3 Protection function 6.3.1 The compressor functions protection with a delay of three minutes. -
Page 14: Heating Mode
When TO＞30℃ and lasts for 1 minute, the fan motor will operates at high speed. When TO＜28℃ and lasts for 1 minute, the fan motor will operates at low speed. When 28℃≤TO≤30℃: A) If fan motor is off originally, it will operate at high speed. B) If fan motor is on originally, it will keep on working at the original speed. - Page 15 6.6.4 The high temperature protection of evaporator as below: 6.6.5 The Electric heater operates as below: a. When TA＜Ts-1℃(2℉), the fan motor operates, and 3 seconds later, the heater is on and operates at low speed within 30 seconds. After 30 seconds, it changes to the setting speed. If the DAHT temperature checked is higher than the protection temperature, when the heater operating, the fan motor is off automatically.
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Page 16: Dip Switches Configurations(Optional)
6.6.6 Heat pump operates as below: The Heat pump′s operation mode is in accordance with the way of compressor′s working. The compressor is on (electric heater is off), the fan motor operates according to the anti-cold wind of heat pump. The four-way valve always keeps on. When TA<Ts-1℃(2℉), the compressor is on, and when TA≥Ts+1℃(2℉),it will be off. - Page 17 Dip Switches configurations and functions of each dip switch position as follow figure and table: Table 1 DIP SWITCHES CONFIGURATIONS UP(ON) DOWN(OFF) Remarks Electric Heat Only Electric Heat and Pump Heat For Heat Pump unit only Temperature Display in℃ Temperature Display in ℉ Wall Thermostat Enable Control Panel Enable Two configurations (S4*S5)
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Page 18: Dip Switches Configurations By Panel Control (Optional)
6.8 DIP Switches Configurations by Panel Control (Optional) 1.Turn off the unit. - Press the up (+) and down (-) buttons together for 3 seconds to activate the dip switches configurations by panel control. - See Table 2 for Dip Switches configurations by panel control. NOTE: Press the up (+) and down (-) buttons together for 3 seconds again or no operation within 30 seconds to exit the dip switches configurations by panel control and the unit will save the last settings. - Page 19 6.9 Wall Thermostat Terminal (Optional) IMPORTANT: Only trained, qualified personnel should access electrical panel on unit and install electrical accessories. Please contact your local electrical contractor, dealer, or distributor for assistance. 1.Thermostat Wire Routing Thermostat wire is field supplied. Recommended wire gauge is 18 to 20 gauge solid thermostat wire. NOTE: It is recommended that extra wires are run to unit in case any are damaged during installation.
- Page 20 TERMINAL DESIGNATION FC(L) Front desk control terminal L FC(N) Front desk control terminal N LOW-FAN Low fan speed HI-FAN High fan speed 4-WAY 4-way valve; Reverse cycle (Energized in Heat) For heat pump models HEAT2 Electrical heater 2 HEAT1 Electrical heater 1 COMP Compressor 24V(N)
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Page 21: Unit Components
4. FRONT DESK CONTROL The controller can handle a switch signal from FC(L) and FC(N) input, called front desk control. Input must be 24VAC. If system doesn't receive a 24VAC signal, it will turn unit off; otherwise, the unit runs in normal control. -
Page 22: Installation Details
wall Installation figure 8. Installation details 8.1 How to install the unit... - Page 23 Dimension of air conditioner - For existing sleeve, you should measure the wall sleeve dimensions. - Install the new air conditioner according to these installation instructions to achieve the best performance. All wall sleeves used to mount the new air conditioner must be in good structural condition and have a rear grille that securely attaches to the sleeve or the flange of the sleeve to secure the new air conditioner.
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Page 24: Care And Cleaning
- Lift unit level and slide unit into wall sleeve until firmly against front of wall sleeve and secure with 4 screws and washers (supplied in the SLEEVE ASSEMBLY) through the unit flange holes. (See Fig.7 and Fig.8) - Reinstall front panel.(See Fig.9) Place tabs over top rail A . - Page 25 VENT DOOR FILTER CAUTION MPORTANT:TURN UNIT OFF BEFORE CLEANING. UNIT DAMAGE HAZARD Failure to follow this caution may result in - If the vent door is open, access requires the removal of equipment damage or improper operation. the unit from the wall sleeve. Clean the vent filter twice a Airflow restriction may cause damage to the unit.
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Page 26: Operation Characteristics
9. Operation characteristics 9.1 Cooling operation Cooling Indoor air temp.℃ DB 9.2 Heating operation... -
Page 27: Power Connection Options
10. Power connection options Appropriate power cord accessory kit is determined by the voltage, and amperage of the branch circuit. The unit does not come with a power cord (or hard wire kit). An accessory power cord must be ordered to connect the unit to the outlet. - Page 28 POWER CONNECTION CHART CODE OF POWER SUPPLY KIT UNI T MODEL 208 / 230 V 208 / 230 V 208 / 230 V ACIQ-07PTC 6-15P(15A / 240V ) ACIQ-09PTC ACIQ-12PTC 6-20P(20A / 240V ) ACIQ-15PTC ACiQ-15PTC5...
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Page 29: Troubleshooting
11.Troubleshooting 11.1 Error Display Contents Codes Open or short circuit of T1 temperature sensor Open or short circuit of T2 temperature sensor Open or short circuit of T3 temperature sensor Open or short circuit of T4 temperature sensor Open or short circuit of T5 or T6 temperature sensor Temperature is lower than display range(0℃/32℉) Temperature is higher than display range(37℃/99℉) Communication malfunction between main control board and display board. - Page 30 11.2 Troubleshooting 11.2.1 Open circuit or short circuit of temperature sensor diagnosis and solution(AS/E5/CS/oS/HS) Error Code AS/E5/CS/oS/HS Malfunction decision If the sampling voltage is lower than 0.06V or higher than 4.94V, the conditions LED will display the failure. Supposed causes Wiring mistake ●...
- Page 32 11.2.2 Communication malfunction between main control board and display board. ( Error Code Malfunction decision Main control board does not receive feedback from display board conditions during 120 seconds. Supposed causes Wiring mistake ● display board Faulty ● main control board Faulty ●...
- Page 33 11.2.3 Drive-by-wire controller failure Error Code Malfunction decision 1, Electric heating signal or compressor signal is on, but fan signal is conditions 2, Electric heating signal and compressor signal are on, but 4-way valve signal is off 3, Cooling only models have heating signal, or the 4-way valve signal and compressor signal are on at the same time.
- Page 34 POSSIBLE CAUSES SOLUTONS UNIT DOES NOT START Check that plug is plugged securely in wall receptacle. Unit may have become unplugged Note: Plug has a test/reset button on it. Make sure that the plug has Fuse may have blown not tripped. Circuit breaker may have been tripped Replace the fuse.
- Page 35 Characteristic of temperature sensor Resistance Resistance Resistance Temp.℃/ Temp.℃/ Temp.℃/ ℉ ℉ ℉ KΩ KΩ KΩ -10/14 62.2756 14.6181 4.3874 17/62 44/111 -9 /15.8 58.7079 13.918 4.2126 18/64 45/113 -8 /17.6 56.3694 13.2631 4.0459 19/66 46/115 -7 /19.4 52.2438 12.6431 3.8867 20/68 47/117...
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