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Installation Manual

Acson international A5CM2020ER, Installation Manual

The Acson International A5CM2020ER, a cutting-edge air conditioning system, promises optimal comfort and efficiency. To assist with a hassle-free installation process, make sure to download the free installation manual from our website. This comprehensive manual will guide you step-by-step through the setup process for a smooth and successful installation.

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Multisplit Installation Manual

Model Reference:

A5CM2020ER

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Summary of Contents for A5CM2020ER

Page 1: ...Multisplit Installation Manual Model Reference A5CM2020ER ...

Page 2: ...ld be 240v 1ph with a 5amp motor rated fuse supply Power to outdoor unit should be 420v 3ph with a 25amp per phase fuse supply b Interconnecting and Control Cables From Outdoor Unit to Indoor Master Unit 3 Core Master Unit to Slave Unit control using 2 off Nim Boards and One off Netware Controller Slave Unit Outdoor Fan Sensor connection on PCB fitted with resistor c Wiring Configuration See Figur...

Page 3: ... connect it to CN4 on the slave unit indoor pcb Address the Slave unit as follows 6 Dip Switch marked DSW1 eight switches LEAVE ALL SWITCHES DOWN OFF 7 Dip Switch marked DSW2 four switches LEAVE SWITCH 1 2 3 SET DOWN OFF MOVE SWITCH 4 UP ON This unit is now addressed as the slave unit number 1 Connect the Nim Boards together as follows 8 Connect a two core cable of about 75mm to CN3 on the Master ...

Page 4: ...E 3ph Power Feed E L L1 N L2 1ph Power Feed 4WV Comp OF OF A 4 WV Comp N L E L L1 N L2 1ph Power Feed 4WV Comp OF E Field Wiring NOT USED NOT USED NOTES 1 Nim PCB and Netware setup are as per normal Master Slave wiring configuration 2 OD Coil Sensor on SLAVE UNIT is linked out with the resistor 4 7Kohm supplied ...

Page 5: ...nsure that the high pressure switch remains operational when using the A5LC40CR in a multisplit application Carry out the modification on site as follows 1 Remove Blue Wire from contactor at point A2 and Mains Neutral Terminal and discard 2 Remove Black High Pressure Switch Wire from Terminal A and re connect directly to point A2 on the contactor ...

Page 6: ... ensure that the high pressure switch remains operational when using the A5LC40CR in a multisplit application Carry out the modification on site as follows 1 Remove Blue Wire from contactor at point A2 and Mains Neutral Terminal and discard 2 Remove Black High Pressure Switch Wire from Terminal A and re connect directly to point A2 on the contactor ...

Page 7: ...0ER Cassette Master Unit A5CM20ER Cassette Slave Unit 5 8 Gas 3 8 Liquid 1 2 Gas 1 4 Liquid 1 2 Gas C U NOTES 1 A reducing Tee is necessary where pipework is split between each cassette on BOTH Liquid and Gas Lines 2 The distance from the tee to each indoor unit MUST be more or less equal to prevent liquid flooding one of the cassettes and starving the other ...

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