Sanyo CHDX07263, CHDXR07263 Introduction, Required settings for Test Run, Outdoor unit No.1

1. Introduction

W-2WAY ECO-i SYSTEM Control Functions

The W-2WAY ECO-i is a system that allows multiple outdoor units to be connected. The outdoor units all contain inverter compressors, and the system does not utilize the sub units that were used in earlier systems.

The outdoor unit where the unit No. is set to “1” includes the CCU (command controller unit) functions that are used to control the entire system. As a result, the system will not operate if no outdoor unit has been set as unit No. “1.”

Required settings for Test Run

1		Outdoor unit No.1		Outdoor unit No. 2
		At time of shipment	On-site setting	At time of shipment	On-site setting
	System address	1	System 1 ~ 30	1	Not necessary
	No. of indoor units	1	1 ~ 40 units	1	Not necessary
	No. of outdoor units	1	1 ~ 3 units	1	Not necessary
	Unit No.	1	Unit No. 1	1	Unit No. 2

This system can be expanded to connect a maximum of 3 outdoor units. (The max. system capacity shall be within 24 Ton.)

The CCU functions are disabled at all units except the unit that is set as unit No. 1. Therefore no problems will result even if the system address, No. of indoor units, and No. of outdoor units settings are made at the other units. However, making these settings may be convenient for manual backup operation, as it eliminates the necessity of making the settings again if unit No. 1 fails.

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