β‘Wiring Diagrams (Applications) & Operational Modes
Depending on the application you can choose different wiring schemes for the FCT (with respect to the Fan). This section will provide information on the seven possible schemes.
There is a total of 7 possible applications each with its specific wiring. They you can group them in 2 categories, depending whether you are utilizing a 3-speed or an ECM fan.
The two categories have very different wiring so it is advisable to examine the wiring diagram below in detail in order to choose the right application/wiring for your specific installation.
A summary can be found in the table below:
00
1-3 speeds
2-pipe ON/OFF (220VAC)
01
1-3 speeds
2-pipe ON/OFF 3-wire valve (220VAC)
02
1-3 speeds
4-pipe ON/OFF 3-wire valve (220VAC)
03
ECM fan
4-pipe ON/OFF (220VAC)
04
ECM fan
2-pipe ON/OFF (220VAC)
05
ECM fan
2-pipe ON/OFF 3-wire valve (220VAC)
06
1-3 speeds
2-pipe ON/OFF (220VAC) Electric heater

Wiring Diagrams (Applications)
You can change the applications with the following command set.
You can set the target applications with the command:
Byte index
Hex value β Meaning
0
60 β The command code.
1
00: Application 0. Default value. 01: Application 1. 02: Application 2.
... 06: Application 6. This application is available only for devices with firmware version β₯ 1.9.
Example downlink: 0x6001 β 0x01: Sets the application 1.
Allowed Operational Modes
You can change the allowed operational modes with the following command set.
Change current operational mode
You can set/get the current operational mode with the following commands:
Valve open/close time
This is applicable only to applications: 01 and 05
Feature for advanced users, use with care.
You can change the valve open/close time with the following command set.
Acceptable values: 1...255 seconds (1sec. resolution).
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