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Instructions for Household Air Conditioners McQuay. McQuay McQuay air conditioners instruction manual G4 wireless remote control

20.06.2023

This section contains all instructions for McQuay equipment (USA) in Russian, English. Documents can be downloaded in pdf format or opened directly on the site.

According to the McQuay company itself, it has been on the market for more than 100 years and successfully sells its products to both ordinary users and various companies. The firm began its successful activities in 1872 under the name J & E Hall, manufacturing and selling refrigeration and freezing equipment. She later acquired this brand. The official founding date of the company can be considered 1933, it was then that the McVay company was born. After that, she began to supply, as well as service various equipment for air conditioning, ventilation and heating systems, besides producing heat exchangers and radiators.

To date, the company produces various air conditioning systems, both for ordinary domestic purposes, standard rooms from 15 to 30 square meters. meters, and for semi-industrial, with a much larger coverage, over 100 square meters.

In total, there are about 13 model ranges of air conditioners, all of them have standard sets of functions and modes of operation, but at the same time, there are 2 main lines among them, which are distinguished by the company itself.

inverter air conditioners

Everything is clear here for those who have ever encountered this topic. Their main difference from non-inverter ones is that at the moment when the temperature reaches the required one, the compressor continues its operation, but in reduced power mode, thereby constantly maintaining the temperature in the room very accurately. Such air conditioners have a special control unit, which is responsible for maintaining the temperature.

The noise level of these air conditioners is usually an order of magnitude lower, because it only needs to set the required temperature in the room, working at high power, after which the noise level will drop to a minimum, because this is the principle of inverter air conditioners.

Split systems "McVay" of the inverter type are divided into two series: "for home and office" and "business series". The first have three necessary modes: standard, turbo mode for heating or cooling and comfortable sleep mode, as well as a very low noise level, only 21 dB, as well as 5 speeds to choose from. The area of the refrigerated room varies from 10 to 25 square meters, depending on the model.

"Business Series" has a wider range of operating temperatures, while it is quite convenient to install and repair, has high energy efficiency and low noise level.

In addition to inverter air conditioners, this company also has ordinary ones, which have a more pleasant price, but also more modest functionality.

Series On/Off

This line contains simple non-inverter air conditioners with low power consumption and high performance. The company produces under this brand air conditioners of the following types:

Wall systems- ordinary split systems that do not have any special functions. Basically, this is a standard set of modes that the manufacturer provides on all lines.
Cassette systems- These are air conditioners built into the false ceiling. Can automatically distribute air in four directions. They have a built-in drain pump that allows you to drain condensate into the drainage system. And they have the function of supplying fresh air.
Universal Models- designed for various installation methods: floor or ceiling. Also, like the cassette, it has the function of supplying fresh air from the street.
Channel models- have an advantage, since they are built into the design of the false ceiling, only air distribution grilles remain, they can be installed in any interior, because the grilles are selected separately, they have a fairly simple connection scheme. There is also an option for high-pressure duct models with increased air flow.

It is worth noting that the air conditioners of this brand have good performance characteristics. Repairing air conditioners, replacing filters, cleaning them is quite simple even if you do it yourself. If you suddenly need to find any board, filter or other spare part, but you can’t do it on your own, then you can contact the company’s technical support, order and buy the necessary spare parts.

Comparison of characteristics of popular models

Basically, almost all models of air conditioning systems from the McVay company are in great demand, because this is a really advantageous offer in terms of price and quality. Among all the best-selling models, there are several of the most popular and best-selling ones, they are provided in a comparative table indicating the characteristics below:

Model	m5lc028cr	mlc010cr	m5wm10jr
Air conditioner type	Not inverter	Not inverter	Not inverter
Series	business series	For home and office	For home and office
Cooling power	7620 W.	2780 W.	2650 W.
Heating power	7620 W.	2780 W.	2800 W.
Power consumption	2440 W.	850 W.	850 W.
Room area	65 - 75 m 2.	25 m2.	25 m2.
type of instalation	Wall	Wall	Wall
Refrigerant type	R410	R22	R410A
Noise level	From 40 to 50 dB.	From 29 to 40 dB.	From 25 to 38 dB.
average cost	45,000 - 55,000 rubles	20 000 rubles	22 000 rubles

The first air conditioner is bought on such a scale for office space, as well as for small industries. The other two are the best solutions for apartments. This air conditioner can be hung in the living room or room, and it will fit perfectly into the interior.

Also, it can often be found in many office premises, because the installation of this model is quite profitable both in terms of the price itself and in terms of the operational period, which, unlike competitors, is an order of magnitude longer, primarily due to the quality of materials and workmanship .

Difference from competitors and features

Split systems McQuay differ from their competitors in the quality of workmanship, the quality of the materials used in the equipment. Designed to last, these air conditioners are designed exactly the way you want them to be.

If you make a list, you can distinguish the following main features of the devices of this brand from the rest:

Quality of workmanship - As already described above, the materials used in these products are usually an order of magnitude better than those of competitors, because the goal of McQuay from its very beginning is to maintain quality.
Number of modes - in addition to the basic, standard modes, systems from this company also have additional ones, for example, night mode, or turbo mode, these modes are rarely found in air conditioners of this price segment.
Convenience features - automatic operation modes, restart after power failure, self-diagnosis function and hot start, all this is a standard set of functions, expanding with each new model. You can choose the set of functions that you specifically need.
Various control panels - there are a large number of control panels from the simplest ones that have the main functions of switching on, temperature, to special network remote controls that allow you to set the time and accurate temperatures. Remotes of different series fit together, and there are both wired and wireless versions.

Instructions for the remote control and McQuay air conditioners

Each conditioner is completed with the instruction for application and the panel for the conditioner. Using the remote control, you can fully customize the device for yourself: turning it on, turning it off, cooling temperature, and if it's winter outside, then blowing heat.

You can also purchase a spare remote control that will use the same communication channel with the air conditioner if the main one is suddenly lost or completely broken. It will have the same functionality, help you adjust the temperature for yourself.

The instruction for controlling the air conditioner from the remote control is simple and the principle of its use will be clear even to a child:

On and off button - usually located in the upper left corner, is responsible for starting the air conditioner.
Temperature mode - usually two arrows up and down, increase or decrease the temperature that needs to be set in the room.
Fan power - the speed at which the air will be cooled, the noise level will depend on this.
Mode selection - sleep, turbo, etc. Sets the required mode to be supported.

But before using it, it’s still worth reading the manual, because some models may have a certain thermal regime in which they can start, or perhaps even the control is implemented in a slightly different way.

Error codes for McQuay air conditioners

Unfortunately, malfunctions can still occur during operation. Since all air conditioners of this brand have a self-diagnosis system, you can determine what happened. In case of an error, a certain code will be displayed on the display, and the light on the module itself will blink in a certain sequence, also indicating a certain code (depending on the models, they may vary).

What to do if the air conditioning has stopped, you can no longer set the parameters on the remote control, and the lights on the air conditioner are blinking? You need to look for what this code means, because the problem may lie both in an incorrect setting and in a malfunction of the outdoor unit.

Error codes for McQuay brand air conditioners (McQuay)

For models:

300/350/400/500BR

E01- manual restart required

E02- high temperature compressor 1 (overload)

E03- high temperature compressor 2 (overload)

E04- high temperature compressor 3 (overload)

E05- high temperature compressor 4 (overload)

E06- Compressor 1 high pressure switch tripped / Thermal contact tripped

E07- Compressor 2 high pressure switch tripped / Thermal contact tripped

E08- Compressor 3 high pressure switch tripped / Thermal contact tripped

E09- Compressor 4 high pressure switch tripped / Thermal contact tripped

E10- Compressor 1 pressure switch tripped / refrigerant shortage / outside air temperature abnormal

E11- Compressor 2 pressure switch tripped / refrigerant shortage / outside temperature abnormal

E12- Compressor 3 pressure switch tripped / refrigerant shortage / outside air temperature abnormal

E13- Compressor 4 pressure switch tripped / refrigerant shortage / outside temperature abnormal

E14- shorted room temperature sensor

E15- open room temperature sensor

E16- evaporator 1 temperature sensor shorted

E17- evaporator 2 temperature sensor shorted

E18- evaporator 3 temperature sensor shorted

E19- shorted evaporator temperature sensor 4

E20- evaporator 1 temperature sensor open

E21- evaporator 2 temperature sensor open

E22- open evaporator temperature sensor 3

E23- open evaporator temperature sensor 4

E24- shorted condenser temperature sensor 1

E25- shorted condenser temperature sensor 2

E26- shorted condenser temperature sensor 3

E27- shorted condenser temperature sensor 4

E28- open condenser temperature sensor 1

E29- open condenser temperature sensor 2

E30- open condenser temperature sensor 3

E31- open condenser temperature sensor 4

E32- Compressor 1 defrost cycle active

E33- Compressor 2 defrost cycle active

E34- Compressor 3 defrost cycle active

E35- Compressor 4 defrost cycle active

For models:

E1- closed or broken room temperature sensor

E2- closed or open evaporator heat exchanger temperature sensor

E3- closed or open condenser coil temperature sensor

E4- compressor overload

E5- refrigerant (freon) leak

E6- faulty pump (pump)

Search faults and breakdowns of split systems McQuay/Acson, it is necessary to start with the common causes of breakdowns and equipment failure. Common causes include electrical malfunctions and malfunctions of the refrigeration circuit.

Name of McQuay/Acson equipment, their analogues and modifications.
McQuay MWM007/10/15/25/GR
MWM009J/JR, AWM009J/JR
M5WM010J/JR, A5WM010J/JR
MWM015J/JR, AWM015J/JR
M5WM015J/JR, A5WM015J/JR
Acson AWM 07/10/10/20/50GR

McQuay diagnostics using the remote control:

Press the TIMER CANCEL button for 5 seconds, 00 blinks on the display.
Press the TIMER CANCEL button until a long beep appears, which indicates an error code,
present in the code table and shown on the display.
A short beep or two consecutive beeps indicates mismatched error codes.
To cancel the error code on the display, press and hold the TIMER CANCEL button for
within 5 seconds. If this button is not pressed within 1 minute, it will automatically
canceling the display of the code on the display.

Controller - error code McQuay and Acson

E1 McQuay/Acson low gas pressure faults, see air conditioner outdoor unit

E2 High gas pressure fault, see air conditioner outdoor unit
E3 Compressor overload, check the mains voltage, if necessary, set the current characteristics according to the rating, read the data on the panel.
E4 Malfunction of McQuay temperature sensor
E5 Compressor liquid hit, poor evaporation in the indoor unit of the Acson split system
F2 Closed, temperature sensor does not work, malfunction
F4 Air temperature sensor does not work, check the resistance
F6 Check the connections, are we confusing the wires? It's like blondes confuse pedals.))
F9 No compression refrigerant leak agent, burst nut, poor flaring,
FE no compression refrigerant leak agent
h3 Current protection tripped, check compressor temperature sensor
H4 McQuay/Acson High Pressure Sensor Malfunctions
L1 Low pressure compression
L3 The temperature sensor of the outdoor unit has tripped, frostbite, - when working on heat.
L4 Water flow switch defective
L5 sensor is faulty, check the resistance of the sensor, 10-16 ohms

McQuay Error Code - Causes

troubleshooting

If one of the main development problems, refer to the following information for a description of possible causes and corrective steps:

Neither the fan nor the compressor is running (no power)

The fuse may be blown or the switch open. Checking electrical circuits and motor windings for shorts or bases.
Investigate for possible overloads.
Replace the fuse or reset switches after the problem is corrected.
Wires can be loose or break. Tighten or replace. Throw away the split.
The supply voltage may be too low. Check it out with the power company.
The control system may be faulty. Check thermostat for proper connection and check 24 volt transformer for burnout.

Fan runs but compressor does not run

Check compressor condenser.
Wires can be loose or break. Tighten or replace.
The high pressure switch may have tripped due to:

a) a contaminated or connected capacitor;
b) no or no condenser water;
c) Too warm condenser water;
d) Not enough airflow over the coils due to dirty filters.
5. Check thermostat, calibration and wiring.
6. Compressor overload protection is open. If the compressor thermocouple is overheated, the overloads will not be reset
until it gets cold. If the overload is external, replace it. If the overload is internal, winding shorted, replace the compressor.
7. Compressor winding may be defective. Check continuity with an ohmmeter. If the windings are broken, replace the compressor.

Compressor - attempts to start, but the compressor stops

1. Check the integrity of the McQuay contactor relay.
2. McQuay. Check system pressure, high?
3. High superheat leads to freezing.
4. Lack of refrigerant.

Compressor stops after running for a short time

Checking the thermostat.

McQuay/Acson faults

Check system pressure.
Refer to troubleshooting - 3 possible causes.

Insufficient cooling or heating

Checking the thermostat.
The airflow may not be sufficient. Check and clean the filter.
The check valve is defective, creating ice in the refrigerant. Check check valve
valve coil.
Insufficient ventilation, freezing of the indoor unit of the system. condensate does not drain. Add ventilation rate.
Make sure any block is in the water outlet, or if the water is dirty.
Lack of refrigerant.

Insufficient water flow through the condenser (pipe in pipe) drain hose crease

1. Check the valves are open.

2. Check for free air trapped in pipelines.

3. Check the circulation pump. Acson

dripping water

1. Check the condensate drain.
2. Check the condition of the filters.
3. Check if the condensate drain runs uphill.
4. See if the motor fan is up to speed.
5. Check fan position.
6. Is the drainpipe properly trap?

Noisy air conditioner outdoor unit

1. Check the fan impellers, what they are clinging to.

2. Check for dents in the impeller.

3. Check if there are free fan wheels on the shaft.

4. Check if the compressor tubes are touching. Adjust the tubes by bending slightly.

5. Check all screws on the panels.

6. Check drain. Remove ice. When working on heat, - freezing of the evaporator.

McQuay diagnostics using the remote control:

1. Press and hold the TIMER CANCEL button for 5 seconds, 00 blinks on the display.
2. Press the TIMER CANCEL button until a long beep appears, which indicates the error code,
present in the code table and shown on the display.
3. A short beep or two consecutive beeps displays inappropriate error codes.
4. To cancel the display of the error code on the display, press and hold the TIMER CANCEL button for
within 5 seconds. If this button is not pressed within 1 minute, it will automatically
canceling the display of the code on the display.

controller, - McQuay and Acson error code

E1 McQuay/Acson low gas pressure faults, see air conditioner outdoor unit

Name of split systems, air conditioners.

McQuay Error Code - Causes

troubleshooting

If one of the main development problems, refer to the following information for a description of possible causes and corrective steps:

Neither the fan nor the compressor is running (no power)

1. The fuse may be blown or the switch is open. Checking electrical circuits and motor windings for shorts or bases.
Investigate for possible overloads.
Replace the fuse or reset switches after the problem is corrected.
2. Wires can be loose or break. Tighten or replace. Throw away the split.
3. The supply voltage may be too low. Check it out with the power company.
4. The control system may be faulty. Check thermostat for proper connection and check 24 volt transformer for burnout.

Fan runs but compressor does not run

1. Check compressor condenser.

2. Wires can be loose or break. Tighten or replace.
3. The high pressure switch may have tripped due to:
a) a contaminated or connected capacitor;
b) no or no condenser water;
c) Too warm condenser water;
d) Not enough airflow over the coils due to dirty filters.
5. Check thermostat, calibration and wiring.
6. Compressor overload protection is open. If the compressor thermocouple is overheated, the overloads will not be reset
until it gets cold. If the overload is external, replace it. If the overload is internal, winding shorted, replace the compressor.
7. Compressor winding may be defective. Check continuity with an ohmmeter. If the windings are broken, replace the compressor.

Compressor - attempts to start, but the compressor stops

1. Check the integrity of the McQuay contactor relay.
2. McQuay. Check system pressure, high?
3. High superheat leads to freezing.
4. Lack of refrigerant.

Compressor stops after running for a short time

1. Checking the thermostat.

Air conditioner detail, outdoor unit

McQuay/Acson faults

2. Check system pressure.
3. Refer to troubleshooting - 3 possible causes.

Insufficient cooling or heating

1. Checking the thermostat.
2. The air flow may not be sufficient. Check and clean the filter.
3. The check valve is defective, creating ice in the refrigerant. Check check valve
valve coil.
4. Insufficient ventilation, freezing of the indoor unit of the system. condensate does not drain. Add ventilation rate.
5. Make sure any block is in the water outlet, or if the water is dirty.
6. Lack of refrigerant.

Insufficient water flow through the condenser (pipe in pipe) drain hose crease

1. Check the valves are open.

2. Check for free air trapped in pipelines.

3. Check the circulation pump. Acson

dripping water

1. Check the condensate drain.
2. Check the condition of the filters.
3. Check if the condensate drain runs uphill.
4. See if the motor fan is up to speed.
5. Check fan position.
6. Is the drainpipe properly trap?

Noisy air conditioner outdoor unit

1. Check the fan impellers, what they are clinging to.

2. Check for dents in the impeller.

3. Check if there are free fan wheels on the shaft.

4. Check if the compressor tubes are touching. Adjust the tubes by bending slightly.

5. Check all screws on the panels.

6. Check drain. Remove the ice!!! When working on heat, - freezing of the evaporator.

Features

Excellent Air Distribution

Air discharge direction can be adjusted in four directions, manually or automatically by using LCD remote
control.

The new double louver design with automatic air swing function fully optimizes the room comfort by
distributing the air evenly to the room. The unique skew fan design with larger diameter creates better air flow
to the operating environment.

self diagnosis

This function is able to detect and to disgnose any faults occurring in the system by blinking of the LED lights.

Simplify and ease for troubleshooting.

Facilitated Maintenance Ensure

Calculation Steps remote control.

The new design of air discharge housing where by the fan blower can be easily accessed by just losing

two screws on the unit to provides a flexible, faster and easier way to clean up the fan blower and ionizer.

Maintenance is easy for electrical components, piping and wiring as these are all easily accessible by simply

removing front plastic panel.

High Efficiency Heat Exchanger

The compact design of the 3-fold structure heat exchanger provides a large surface are for better and efficient
heat exchange. The unique Hydrophilic slit fin has greatly improved the air flow and the contact surfaces with
the air thus to boost the cooling capacity.

Wireless remote controller

The compact LCD transmitter is able to operate the air conditioner unit within the distance of 9 meters.
Fan motor speed can be set at low / medium / high or automatic.
Sleep mode auto control will gradually increase or decrease the setting temperature to provide a
comfortable surroundings for sleeping.
Air flow direction can be controlled automatically.
Room temperature is controlled by electronic thermostat.
The real time timer allows the air conditioner to be switched on and off automatically based on user
settings.
Turbo mode function is available to enables the required set temperature to be achieved in a short time
Personalized setting allows user to preset and store 2 groups of personal settings (including timer setting)
in the handset.

Auto random restart is a function where by when there is power failure occurred during operation, the unit
will automatically restart as the last setting condition once the power is resumed.

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