Construction
E - 18
Remote
control
Remote
control
Remote
control
Remote control
wiring
Remote control
wiring
Bus system
cable for
group control
Indoor/outdoor
operation cable
Indoor unit
2
Indoor unit
1
Indoor unit
Outdoor unit
Outdoor unit
Grounding
Grounding
Grounding
Grounding
Grounding
Earth leakage
breaker
Earth leakage
breaker
Earth leakage
breaker
Earth leakage
breaker
Remote
control
Separately
sold item
Remote
control
Separately
sold item
Remote
control
Separately
sold item
Grounding
Grounding
Grounding
Grounding
Grounding
Grounding
Indoor unit
1
Outdoor unit
Indoor unit
3
Indoor unit
4
Indoor unit
X
Indoor unit
(UH)
Remote control
wiring
Indoor/outdoor
operation cable
Earth leakage
breaker
Earth leakage
breaker
(Maximum 8 units can be connected)
Bus system cable for group control
Central control device
2Ceiling embedded high static pressure type (DR76, 96 type)
■ Cabling method
●Power cabling to the indoor units should be separate for each indoor unit.
1:1 or 1:2 combinations (without using a centralized control device)
<E70 type and DR76 type>
<E90 type and DR96 type>
<E150 type and DR76 type 2 units>
<E190 type and DR96 type
2 units>
When using a centralized control device in conjunction with other multi-type indoor units
1)Controlling indoor units of one refrigeration system
Note 1: When a centralized control device is used, the signal cable from the centralized control
device should be connected to be the same signal cable as the indoor/outdoor operation
cable. (no polarity)
Note 2: S7 on the outdoor unit board (terminal resistance ON/OFF switch) should be set to the
ON side (when shipped from the factory it is set to ON).
❋ When there are several other multi types, several units of ‚c‚q‚V‚U type and ‚X‚U type cannot be
connected to one refrigerant system.
3. Points regarding electrical construction (indoor unit)
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