MRCOOL MXH1518H30BV08 - User Manual

Page 2 - OUTDOOR UNIT

OUTDOOR UNIT mrcool.com These instructions are intended as an aid for qualified licensed service personnel for proper installation, adjustment and operation of this unit. Read these instructions thoroughly before attempting installation or operation. Failure to follow these instructions may result i...

Page 9 - Electric Characteristics

OUTDOOR UNIT mrcool.com | Page 7 Table - 2 5. Electric Characteristics

Page 11 - Installation Procedure

7. Installation Procedure OUTDOOR UNIT mrcool.com | Page 9 Indoor Unit Installation Location Selection Outdoor Unit Installation Location Selection Indoor Unit Installation Outdoor Unit Installation Refrigerant Pipe Installation and Insulation Refrigerant Pipe Installation and Insulation Drainage Pi...

Page 12 - Location Selection; Indoor unit location selection; Outdoor unit location selection

8. Location Selection OUTDOOR UNIT mrcool.com | Page 10 8.1 Indoor unit location selection • The place should easily support the indoor unit's weight. • The place is easily accessible for indoor unit installation and inspection. • The place can accommodate horizontal indoor unit installation. • The ...

Page 15 - Refrigerant Pipe Installation; flow is necessary to displace air and prevent oxidation.; The procedure of connecting pipes; Cut the selected pipe with pipe cutter making; DO NOT

10. Refrigerant Pipe Installation OUTDOOR UNIT mrcool.com | Page 13 Maximum pipe length and height drop Consider the allowable pipe length and height drop when deciding the installation position. Make sure the distance and height drop between the indoor and outdoor units do not exceed the data in th...

Page 17 - Vacuum Drying and Leakage Checking; Purpose of vacuum drying; Operation procedure for vacuum drying; Special vacuum drying

11. Vacuum Drying and Leakage Checking OUTDOOR UNIT mrcool.com | Page 15 Purpose of vacuum drying • Eliminating moisture in system to prevent the phenomena of ice-blockage and copper oxidation Ice-blockage can cause abnormal operation of system, while copper oxide can damage the compressor. • Elimin...

Page 18 - Additional Refrigerant Charge

After the vacuum drying process is carried out, the additional refrigerant charge process needs to be performed. The outdoor unit is factory charged with refrigerant. The additional refrigerant charge volume is decided by the diameter and length of the liquid pipe between the indoor and outdoor unit...

Page 19 - Engineering of Insulation; Insulation of refrigerant pipe; Insulation of drainage pipe

13. Engineering of Insulation OUTDOOR UNIT mrcool.com | Page 17 Insulation of refrigerant pipe Operational procedure of refrigerant pipe insulation 1. Cut the suitable pipe 2. Insulation (except joint section) 3. Flare the pipe 4. Piping layout and connection 5. Vacuum drying 6. Insulate the joint p...

Page 20 - Insulation material selection for drainage pipe; Installation of insulation; Engineering of electrical wiring; Highlights of electrical wiring installation; Electric Wiring Guage

OUTDOOR UNIT mrcool.com | Page 18 Insulation material selection for drainage pipe • The insulation material should be a ﬂame retardant material, and the material should be in accordance to the guidelines of local law. • Thickness of insulation layer is usually above 10mm. • Use speciﬁc glue to paste...

Page 22 - Check off the following before testing the operation:

15. Test Operation OUTDOOR UNIT mrcool.com | Page 20 The test operation must be carried out after the entire installation has been completed. Check oﬀ the following before testing the operation: Are both the indoor unit and outdoor unit installations completed? Is tubing and wiring completed? Have y...

Page 23 - minutes and then

16. Troubleshooting OUTDOOR UNIT mrcool.com | Page 21 System Alarm: Green light or Yellow light slowly ﬂashes System lock: Green light goes out and Yellow light is on Turn oﬀ power for 10-15 minutes and then restart.

Page 24 - T3 Condenser Temperature sensor fault; T5 discharge Temperature sensor fault

OUTDOOR UNIT mrcool.com | Page 22 T3 Condenser Temperature sensor fault Error No Check the sensor is good or not? Error Well connected, then replace the sensor or PCB Replace the bad sensor Check the connection between sensor and PCB No Check PCB Sensor is open circuit? Sensor is short circuit? Comp...

Page 25 - Low pressure alarm; High pressure alarm

OUTDOOR UNIT mrcool.com | Page 23 Low pressure alarm Error OK Check the gas side of the system Lack of refrigerant Low Pressure alarm OK Heat exchanger is in poor condition Check the PCB and pressure swich Replace PCB or switch OK Error Repair the heat exchanger Repair the leakage & charge refri...

Page 26 - High exhaust temperature protection

OUTDOOR UNIT mrcool.com | Page 24 (T3)High temperature protection Error OK The condenser is in poor condition Check the connection between sensor and PCB High temp. protection of Outdoor Condenser Well connected, then replace the sensor or PCB OK There is N 2 or air in the system Check if the liquid...

Page 27 - PRODIRECTTM Series

PRODIRECT™ Series The design and speciﬁcations of this product and/or manual are subject to change without prior notice. Consult with the sales agency or manufacturer for details.

MRCOOL MXH1518H30BV08 - User Manual

Table of Contents:

Summary

Other MRCOOL Air Conditioners Models