Table of Contents
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Installation and Operation Manual
DC Inverter
Indoor Unit
MQS-174018-CFC216A MQIU-174018-HCU216A
MQS-174024-CFC216A MQIU-174024-HCU216A
MQS-174036-CFC216A MQIU-174036-HCU216A
MQS-174048-CFC216A MQIU-174048-HCU216A
MQS-174060-CFC216A MQIU-174060-HCU216A
Floor Ceiling Type Unit
Outdoor Unit
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Table of Contents
Related Manuals for McQuay MQS-174018-CFC216A
Summary of Contents for McQuay MQS-174018-CFC216A
- Page 1 Installation and Operation Manual DC Inverter Floor Ceiling Type Unit Indoor Unit Outdoor Unit MQS-174018-CFC216A MQIU-174018-HCU216A MQS-174024-CFC216A MQIU-174024-HCU216A MQS-174036-CFC216A MQIU-174036-HCU216A MQS-174048-CFC216A MQIU-174048-HCU216A MQS-174060-CFC216A MQIU-174060-HCU216A Thank you for choosing Air Conditioners, please read this owner’s manual carefully before operation and ...
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Page 2: Table Of Contents
Contents 1 Safety Precautions ..................1 2 Outline of the Unit and Main Parts ............. 2 3 User's manual of remote controller............. 3.1 Buttons on remote controller ................3 3.2 Introduction for icons on display screen ............3 3.3 Introduction for buttons on remote controller ........... 4 3.4 Function introduction for combination buttons ..........7 3.5 Operation guide .................... -
Page 3: Safety Precautions
DC Inverter U-match Series Floor Ceiling Type Unit 1 Safety Precautions This mark indicates procedures which, if improperly performed, might lead to the WARNING! death or serious injury of the user. This mark indicates procedures which, if improperly performed, might possibly CAUTION! result in personal harm to the user, or damage to property. -
Page 4: Outline Of The Unit And Main Parts
DC Inverter U-match Series Floor Ceiling Type Unit 2 Outline of the Unit and Main Parts Air inlet Air outlet Fig. 2.1 Notes: ①. The connection pipe and duct for this unit should be prepared by the user. ②. This unit is standard equipped with the rectangular duct. -
Page 5: User's Manual Of Remote Controller
3 User's manual of remote controller 3.1Buttons on remote controller ON/OFF button MODE button +/- button FAN button button CLOCK button TIMER ON/TIMER OFF button X-FAN button Note: X-FAN is the same with BLOW TURBO button SLEEP button LIGHT button 3.2 Introduction for icons on display screen Set fan speed Send signal... -
Page 6: Introduction For Buttons On Remote Controller
3.3 Introduction for buttons on remote controller Note: ● After putting through the power, the air conditioner will give out a sound. Operation indictor " " is ON (red indicator). After that, you can operate the air conditioner by using remote controller. ON/OFF button Press this button can turn on or turn off the air conditioner. - Page 7 3.3 Introduction for buttons on remote controller +/- button ● Press "+" or "-" button once increase or decrease set temperature 1℃ . Holding "+" or "-" button, 2s later, set temperature on remote controller will change quickly. On releasing button after setting is finished, temperature indica- tor on indoor unit will change accordingly.
- Page 8 3.3 Introduction for buttons on remote controller CLOCK button Press this button to set clock time. " " icon on remote controller will blink. Press "+" or "-" button within 5s to set clock time. Each pressing of "+" or "-" button, clock time will increase or decrease 1 minute.
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Page 9: Function Introduction For Combination Buttons
3.3 Introduction for buttons on remote controller X-FAN button Press this button under cool and dry mode to start up x-fan function, and " " icon on remote controller will be displayed. Press this button again to cancel x-fan function, and " "icon will disappear. -
Page 10: Operation Guide
3.5 Operation guide After putting through the power, press "ON/OFF" button on remote controller to turn on the air conditioner. Press "MODE" button to select your required mode: AUTO, COOL, DRY, FAN, HEAT. Press "+" or "-" button to set your required temperature. (Temperature can’t be adjusted under auto mode). -
Page 11: Preparative For Installation
DC Inverter U-match Series Floor Ceiling Type Unit 4 Preparative for Installation 4.1 Standard Accessory Parts The standard accessory parts listed below are furnished and should be used as required. Table 3.1 Indoor Unit Accessories Name Appearance Q'ty Usage To fix the hook on the Nut with Washer cabinet of the unit. -
Page 12: Selection Of The Installation Location
DC Inverter U-match Series Floor Ceiling Type Unit 4.2 Selection of the Installation Location WARNING! The unit must be installed where strong enough to withstand the weight of the unit and fixed securely, otherwise the unit would topple or fall off. CAUTION! Do not install where there is a danger of combustible gas leakage. - Page 13 DC Inverter U-match Series Floor Ceiling Type Unit (4). Install the unit where the drain pipe can be easily installed. (5). The space from the unit to the ceiling should be kept as much as possible so as for more convenient service. 4.2.2 Outdoor Unit WARNING! Install the unit where it will not be tilted by more than 5°.
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Page 14: Connection Pipe Requirement
Drainage pipe(Outer Pipe(Inch) Max. Pipe Difference between Diameter × wall Length (m) Indoor Unit and Model thickness) (mm) Liquid Outdoor Unit (m) MQS-174018-CFC216A φ17×1.75 MQIU-17 4018-HCU216A MQS-1740 24-CFC216A φ17×1.75 MQIU-17 4024-HCU216A MQS-1740 36-CFC216A φ17×1.75 MQIU-17 4036-HCU216A MQS-1740 48-CFC216A φ17×1.75 MQIU-17 4048-HCU216A MQS-1740 60-CFC216A φ17×1.75... - Page 15 DC Inverter U-match Series Floor Ceiling Type Unit Table 3.5 Power Capability of Air Minimum Sectional Area Model Supply Switch(A) Of Earth Wire (mm MQIU-174018-HCU216A MQIU-174024-HCU216A MQIU-174036-HCU216A 220-240V~ 60Hz MQIU-174048-HCU216A MQIU-174060-HCU216A Notes: ①. The fuse is located on the main board. ②.
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Page 16: Installation Of The Unit
If the installation location is not strong enough, the indoor unit may fall and cause injuries. ②. If the job is done with the panel frame only, there is a risk that the unit will come loose. Please take ③. care. Fig. 4.1 Table 4.1 Model MQS-174018-CFC216A 1220 1158 MQS-174024-CFC216A MQS-174036-CFC216A 1420 1354 MQS-174048-CFC216A... - Page 17 DC Inverter U-match Series Floor Ceiling Type Unit (3). Release the center hook and remove the front panel. (4). Release the claws in the 2 or 3 places indicated and remove the electric component cover. 5.1.3 Indoor Unit Installation (1). Determine the location of the hanger through the paper template, and then remove the paper template.
- Page 18 DC Inverter U-match Series Floor Ceiling Type Unit ◆Ceiling type Fig. 4.4 (6). Adjust the height of the unit to make the drain pipe slant slightly downward so that the drainage will become much smoother. 5.1.4 Leveling The water level test must be done after installing the indoor unit to make the unit is horizontal, as shown below.
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Page 19: Installation Of The Outdoor Unit
DC Inverter U-match Series Floor Ceiling Type Unit 5.2 Installation of the Outdoor Unit WARNING Install the unit where it will not be tilted by more than 5°. ①. During installation, if the outdoor unit has to be exposed to strong wind, it must be fixed securely. ②. -
Page 20: Installation Of The Connection Pipe
DC Inverter U-match Series Floor Ceiling Type Unit (3). Installation Method: Insert the pipe joint into the hole φ25 located at the base plate of the unit and then connect the drain pipe to the pipe joint. Fig. 4.7 5.3 Installation of the Connection Pipe 5.3.1 Flare Processing (1). - Page 21 DC Inverter U-match Series Floor Ceiling Type Unit (3). When pipes are repeatedly bent or stretched, the material will harden, making it difficult to bend or stretch them any more. Do not bend or stretch the pipes more than three times. (4).
- Page 22 DC Inverter U-match Series Floor Ceiling Type Unit Fig. 4.11 Fig. 4.12 Table 4.3 Flare nut tightening torque Pipe Diameter Tightening Torque 1/4 Inch） 15-30 (N·m) 3/8 Inch） 35-40 (N·m) 5/8 Inch） 60-65 (N·m) 1/2 Inch） 45-50 (N·m) 3/4 Inch） 70-75 (N·m) 7/8 Inch）...
- Page 23 DC Inverter U-match Series Floor Ceiling Type Unit 5.3.5 Checking the Pipe Connections for Gas Leaking For both indoor and outdoor unit side, check the joints for gas leaking by the use of a gas leakage detector without fail when the pipes are connected. 5.3.6 Heat Insulation on the Pipe Joints (Indoor Side Only) Stick coupler heat insulation (large and small) to the place where connecting pipes.
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Page 24: Vacuum And Gas Leakage Inspection
DC Inverter U-match Series Floor Ceiling Type Unit (2). If the outdoor unit is installed higher than the indoor unit 1). Taping should be done from lower to the upper part. 2). All pipes are bound and taped together and also should be trapped to prevent water from returning to the room (See Fig. - Page 25 DC Inverter U-match Series Floor Ceiling Type Unit pipe to balance the pressure inside and outside of the connection pipe, so that air will not come into the connection pipe when removing the hose. Note that the gas and liquid valve can be opened fully only after the manifold valve assembly is removed.
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Page 26: Installation Of The Drain Pipe
DC Inverter U-match Series Floor Ceiling Type Unit When the height difference between the indoor unit and outdoor unit is larger than 10 meters, an oil bend should be employed for every 6 meters. Fig. 4.18 5.5 Installation of the Drain Pipe 5.5.1 Precautions When Doing the Piping Work (1). - Page 27 DC Inverter U-match Series Floor Ceiling Type Unit 5.5.2 Installing the Drain Pipes (1). For determining the position of the drain hose, perform the following procedures. (2). Insert the drain pipe to the drain outlet of the unit and then tighten the clamp securely with tape.
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Page 28: Electrical Wiring
DC Inverter U-match Series Floor Ceiling Type Unit 5.5.4 Testing of Drain Piping (1). After piping work is finished, check if drainage flows smoothly. (2). As shown in the Figure, pour water into the drain pan from the right side to check that water flows smoothly from the drain hose. - Page 29 DC Inverter U-match Series Floor Ceiling Type Unit 5.6.2 Electrical Wiring (1). For solid core wiring (Fig. 4.26) 1). Cut the wire end with a wire cutter or wire-cutting pliers, then strip the insulation about 25 mm (15/16") . 2). Using a screwdriver, remove the terminal screw(s) on the terminal board. 3).
- Page 30 ④. clamped, electric leakage may occur.) Always connect the ground wire. ⑤. (4). Electric wiring between the indoor and outdoor units Single-phase units (18/24K) Single-phase units (18/24K) MQIU-174018-HCU216A+MQS-174018-CFC216A Power cord 3×1.5mm (H07RN-F) ①. Power cord 3×1.0mm (H05RN-F) ②. Communication Cords 2×0.75mm (H05RN-F) ③.
- Page 31 DC Inverter U-match Series Floor Ceiling Type Unit communication cord and the power cable into the terminal board. Fig. 4.30 CAUTION! The power cord and the wire of the fresh air valve are high-voltage, while the communication cord ①. and connection wire of the wired controller are low-voltage. They should run separately against electromagnetic interference.
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Page 32: Installation Of Controllers
DC Inverter U-match Series Floor Ceiling Type Unit Remove the big handle (18~36K) /front board(48~60K) of the outdoor unit and insert the end of the communication cord and the power cable into the terminal board. Single phase: Fig. 4.31 6 Installation of Controllers Refer to the Installation Manual of the controller for more details. - Page 33 DC Inverter U-match Series Floor Ceiling Type Unit Outdoor ambient temperature sensor error Discharge temperature sensor error Temperature sensor error of wired controller Outdoor memory chip error Electric box sensor error Compressor overload protection Overloading IPM protection DC fan motor error Drive desynchronizing protection Pfc protection Activation failure...
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Page 34: Working Temperature Range
DC Inverter U-match Series Floor Ceiling Type Unit Type Unit. Fig. 6.1 States of the Indicating Lamps: 1). Indicating Lamp of “POWER”: The indicating lamp will shine when power on, while it will go out when power off. 2). Indicating Lamp of “COOL” : The indicating lamp will shine when “COOL”... -
Page 35: Troubleshooting And Maintenance
DC Inverter U-match Series Floor Ceiling Type Unit ③. Cooling (heating) capacity stated above is measured under nominal working conditions corresponding to standard external static pressure. The parameters are subject to change with the improvement of products, in which case the values on nameplate shall prevail. 8 Troubleshooting and Maintenance 8.1 Troubleshooting If your air-conditioning unit suffers from abnormal operation or failure, please first... -
Page 36: Routine Maintenance
DC Inverter U-match Series Floor Ceiling Type Unit 8.2 Routine Maintenance WARNING! Do turn off the unit and cut off the main power supply when cleaning the air conditioner, ①. otherwise electric shock may happen. Do not make the air conditioner wet or electric shock may be lead; Ensure that the air ②. - Page 37 DC Inverter U-match Series Floor Ceiling Type Unit 3.Disassemble the left and right side board After the grille is removed, use a screwdriver ①. to remove the screws shown on the picture. Push the side plate as per the arrowed ②.