Hardware; List Of Parts; Gateway - Gree Ultra Heat GMV Multi VRF Heat Pump Series Service Manual

Ultra Heat GMV VRF Technical Service Manual
exceeds 100m, please use a repeater to enhance communication; all gateways must be connected to
the LAN interface of router.
L5: L5 as shown in the figure is the power line; power line shall be arranged strictly according to
network 1 or network 2. In network 1, the indoor units and outdoor units in one system share one electric
meter. In network 2, all indoor units in one system share one electric meter and all outdoor units share
one electric meter.
Notice:
1) In one CAN2 network, a maximum of 16 air conditioning systems and 255 IDUs are allowed. If
exceeded, the CAN2 network should be divided into two.
2) One gateway can be connected to only one CAN2 network.
3) One VRF monitoring system can be connected to 16 gateways in maximum.
4) The way of communication among units and gateway is the same with network 3 (without billing
function, disconnecting electric meter).

2 HARDWARE

2.1 List of Parts

Name

Gateway

FE22-41/BEF(MCB)
Optoelectronic Optoelectronic isolated
isolated repeater
Repeater
Control cabinet
2.2 Gateway
2.2.1 Functions
Long-distance monitor gateway converts CAN, RS485 bus data into TCP/IP and communicate with
Ethernet through common router, so as to achieve central monitoring, billing, error reminding functions.
(1) Interface Drawing
Type
Monitoring part
repeater RS485-W
/
/
BOM Supply Range
MC20001450 SC
EN02200010 Optional
Prepared by
/
users
Prepared by
/
users
204
REMOTE CONTROL
Remark
Interconnect with VRF monitoring
system.
For 485 communication bus, set
a repeater every 800 m; for
electric meter, add a repeater
every 30 electric meters.
This repeater is required only
when the length between
gateway LAN output and PC
exceeds 100m.