Sanyo DHX4852 - Manual (Page 67)

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3-19
Control of W-2WAY ECO-i SYSTEM
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2. Wireless Remote Controller
2-15. Important Information for Installation of 2
Separate Receiver Units
When using 2 receiver units to operate 1 or more indoor units
at the same time, follow the procedure below to install them.
Installation method
1. If 2 remote controllers are installed, set one of them as
the “main remote controller” (setting at time of factory
shipment).
2. At the other remote controller, remove the receiver name-
plate and switch the DIP switch to “sub remote controller.”
Under these conditions, the receiver unit functions as the
sub receiver unit.
* The TIMER lamp lights only at the remote controller
that receives the signal.
Basic wiring diagram
* When connecting the wires, be careful not to wire
incorrectly.
(Incorrect wiring will damage the unit.)
Using 2 separate receiver units to control 1 indoor unit:
Separate
receiver unit
(main)
Separate
receiver unit
(sub)
(optional)
Remote controller
terminal board
Wire of the receiver unit (field supply)
Indoor
unit
1 2
1 2 2 1
Ground
1 2
1 2
1 2
1 2
1 2 1 2
Indoor
unit No. 1
Indoor
unit No. 2
Indoor
unit No. 3
Indoor
unit No. 8
Remote controller
terminal board
Separate
receiver unit
(main)
(optional)
Separate
receiver unit
(sub)
(optional)
Crossover cables of the
receiver unit for the
control groups (field supply)
Ground Ground Ground Ground
Using 2 separate receiver units to control a group of multi-
ple indoor units:
* The main and sub receiver units will operate regard-
less of the indoor unit in which they are installed.
* Use wires that are AWG#20 to AWG#14 in diameter.
* The wiring length must not exceed 1320 ft.
* Use field wiring cables with a cross-sectional
area of at least AWG#20 to AWG#14.
* The maximum total length of crossover cables
must be no longer than 1320 ft.
TD831138-02_W-2WAY.indb 19 2007/07/26 14:31:22