Hitachi RAS-4.0PNNBDH1 - 1. OPTION LIST; Wired Remote Controller Installation

1. OPTION LIST
2 pcs 2 pcs
1 pc
Manual
Quality certification
Screw
Controlling cable
Connecting terminal
1pc
1pc
Insert the slotted screwdriver from here,
and press on it for removal.
Upper cover
Lower cover
Cut off thin area with nippers or the like, and then remove burr with a file or the like.
Back out hole
Bottom outlet hole
3.
Determining the direction of the controller wiring outlet (back outlet, bottom outlet).
4.Wiring of wired controller
Single control
Connect wired controller with indoor unit with attached controlling cable (4-pin).
Group control
Connect wired controller with indoor unit with attached controlling cable (4-pin), and connect with adaptor with RS485 controlling
cable (2-pin, attached with adaptor). The quantity of adaptor required, which need to be prepared separately, is the same with that of the
secondary controller.
B- B- B-
B-
B- B-A+ A+ A+
A+
A+ A+
···
···
···
···
RS485 shielded twisted pairs (with polarity, A+ B-)
Adaptor
HDBA21NEWH
Wired
controller
Indoor unit
(Secondary 1)
Indoor unit
(Secondary 2)
Indoor unit
(Primary)
Indoor unit
(Secondary ...)
Indoor unit
(Secondary 7)
Model:
((
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1.
Option list
1.1 Wired Rmote Controller (Model: HCWA21NEHH)
1
Wired controller installation