Installation Of The Thermistors - Gree GMV-N140U/A-T Manual De Instalación Y Operación

are shorted by the factory default.
② Neutral line of fan connects to the N.
It can be connected to any of them (H, M, L) when there is only one gear.
Disconnect the short cable between H and M when there are two gears, then connect
the high gear cable to H, and connect low gear cable to either M or L.
When there are three gears, disconnect the short cables between H and M, M and L,
then connect the high gear cable, middle gear cable and low gear cable to H,M,L for
each.
③ The lines of fault signal from external feedback are connected to the 1, 2.The line is a dry
contact and closed normally. If the line is closed, it represents no fault and the system
operates normally; if the line is disconnected, it represents malfunction and the system
will stop.
④ Disconnect the short cable between 1 and 2 when there is fault signal, and connect the
signal cable to 1 and 2.
⑤ Pull the wires inside through the screw nut and close the nut firmly in order to ensure a
good pull relieve and water protection.
⑥ The cables require an additional pull relief. Fixing the cable with the wire clamp.

4.5 Installation of the Thermistors

4.5.1 Refrigerant Thermistors
Location of the thermistor:
A correct installation of the thermistors is required to ensure a good operation:
(1) Liquid(RT4)
Install the thermistor behind the distributor on the coldest pass of the heat exchanger (contact
your heat exchanger dealer).
(2) Gas (RT2)
Install the thermistor at the outlet of the heat exchanger as close as possible to the heat
exchanger.
① Liquid RT4
② Gas RT2
Installation of the thermistor cable
(1) The length of thermistor wire is 10 m.
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT
Fig.4.5.1.1
16