Hisense HCPC-H2M1C Installation Instructions Manual page 48

6 Notes and Attentions
1. Notes and attentions of control state checking
The control bit of switch on/off, operation mode setting, fan speed setting, swing louver setting, temperature setting, filter reset
setting is defaulted as 255, it will return to 255 after successfully sent control commands. At this time if you want to check the
running state of indoor unit, please refer to 4.10 indoor unit data monitoring to check whether it runs as per control command, if wire
controller all prohibited, or wire controller partial prohibited command setting, you can check its corresponding Mapping Table
position.
2. Notes and attentions of LAN WEB
When setting subnet mask through LAN WEB server login, please do not set illegal subnet mask, i.e. 255.255.255.0 is legal,
255.255.255.1 is illegal, after setting, it will be not able to connect even if the network of Modbus adapter and computer for
management are in the same IP segment.
Solution: clear Ethernet EEPROM data, factory reset IP setting, please refer to Table 3.2 Set IP address with key.
3. Notes and attentions of auto fan speed setting
Only K3 indoor unit and DC indoor unit can be set as "Auto fan speed", other machines cannot run auto fan speed even if it's set.
4. Notes and attentions of AC desiccant unit
Wire controller temperature prohibition cannot be set for AC desiccant unit, please remove it as soon as possible if set.
5. Notes and attentions of one wire controller with multiple indoor units
The indoor units in the same wire controller group are working according to the same control commands, when login the wire
controller group, the product will automatically choose one indoor unit as the host, the benchmark is to select indoor unit with
smaller refrigerant system number and address number as the host. For example, indoor unit with swing louver and indoor unit
without swing louver are in the same wire controller group, to control the indoor unit with swing louver, the indoor unit with swing
louver must be set as the host, while indoor unit without swing louver as slave.
In the same system, the indoor unit with the smallest address number is the host, for example, when the host is K3 four directions,
the host can do swing louver setting, the slave with swing louver can do swing louver, the slave without swing louver cannot do
swing louver. But if the host is embedded and other machine, it does not have swing louver itself, then the host cannot do swing
louver setting, while the slave cannot do the swing louver either even if it has swing louver, the solution is to set the indoor unit with
more functions as the host.
6. Notes and attentions of being used together with other centralized controllers
When being used with other centralized controllers, do not set remote control prohibition function (all prohibition and partial
prohibition), and do not set remote control prohibition function on the centralized controller used together, if remote control
prohibition is set, it may not work properly.
7. Notes and attentions of fan speed jump and operating mode jump
Taking the first indoor unit as example, if detected any of the operation mode jump (40005 bit0～3) and fan speed jump (40006) is
bit = 1, PC cannot set corresponding operation mode and fan speed, and it cannot work even if it was set.
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