Daisy Chain Wiring; Model S77 As Driving Control - Anden SURNA S710V1 Directives D'installation Et Mode D'emploi

DAISY CHAIN WIRING

Anden dehumidifiers can be wired in a daisy chain application, allowing one Model S77 or alternate dry contact dehumidistat to control any number
of dehumidifiers wired together� Reference the dehumidifier Installation and Operation Manual for detailed set-up and operation�

MODEL S77 AS DRIVING CONTROL

When a Model S77 is used to control the first dehumidifier, Unit #1 must be set to ENABLE REMOTE in the set-up menu� All downstream units must
be set up to ENABLE EXTERNAL in each set-up menu� See page 12 for set up details, and wire as shown in FIGURE 12�
SEQUENCE OF OPERATION
Each unit in the daisy chain responds to the first unit being controlled by the S77� When the humidity level rises above the humidity setting, all units
will dehumidify until the humidity measured by the S77 falls below the setting�
IMPORTANT: If the S77 or first dehumidifier experiences a fault or loses power, all downstream dehumidifiers will also stop function� If any
dehumidifier in the daisy chain other than Unit #1 experiences a fault, that unit will stop operation as determined by the fault but all other units will
continue operating� If any dehumidifier loses power, all downstream units will stop function�
FIGURE 12 – WIRING WITH S77 CONTROL
UNIT #1
SET UP FOR REMOTE CONTROL
+ - A B ODT
Remote Sensor
10 English
DEH
Vent
MODEL S77 CONTROL
A
B
C/-
R/+
DH
DH
UNIT #2
SET UP FOR EXTERNAL CONTROL
+ - A B ODT DEH
Remote Sensor Vent
UNIT #3
SET UP FOR EXTERNAL CONTROL
+ - A B ODT DEH
Remote Sensor Vent