Installation - Gree GMV-S120WL/A-S Service Manual

controller can't be more than 16 sets and all connected indoor units must be within the
same indoor unit network. Number of indoor units of group control must be set for wired
controller. Please refer to section 3.2.3.
(4) When one (or two) wired controller(s) control(s) multiple indoor units at the same time,
the controlled indoor unit's setting should be the same.
(5) Network wiring between wired controller and indoor unit must follow one of the four
wiring methods as shown in Fig 3.4-3.7. As for the connection method shown in Fig 3.5
and 3.7, there should be only one master wired controller (address 01) and one slave
wired controller (address 02). There can't be more than 2 wired controllers.
Note:
Series of indoor unit include: ①Common Multi VRF Indoor Units; ②Fresh Air Indoor Units;
③Double Heat Sources Indoor Units; ④Combining Type Indoor Units; Units except for fresh air
units, double heat sources units, combining units are common multi VRF.

3.3.1.4 Installation

Fig.3.8 is a simple installation process of wired controller. Please pay attention to the following
matters:
(1) Before installation, please cut off the power for indoor units.
(2) Pull out the 2-core twisted pair from the installation hole on wall, and then pull this wire
through the wiring hole at the rear side of the soleplate of wired controller.
(3) Stick the soleplate of wired controller on the wall and use screw M4x25 to fix the soleplate
onto the installation hole on wall.
(4) Connect the 2-core twisted pair to H1 and H2 wiring column and then tighten up the
screws.
(5) Bundle the panel and soleplate of wired controller together.
GMV5 Home DC Inverter Multi VRF Units
Fig.3.8 Installation of Wired Controller
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