Setting The Output Relays And Fan Speed; Relay Function - Sinclair SCMI-01.4 User Manual

4.6. Setting the Output Relays and Fan Speed

The SCMI-01.4 control module has three output relays with NO (normally open) contacts,
which can switch 230V/2A. This module can also control the indoor fan speed using PWM
(Pulse Width Modulation) Press the ENTER key to enter the setting menu and use the ▼/▲
keys to select the Outputs menu. After opening this menu, you can select the desired
output.
Relay 1
Relay 2
Relay 3
DC Vent
Then you can set the function and the switching logic for each relay or set the indoor fan
control mode or set the fan speed directly.

Relay function

This menu allows you to set the function of the selected relay.
Relay x
Function
Individual relays of the control module may have the following functions:
ON/OFF
Compres.
Defrost
Error
Heat/Coo
Limiting
There are not any other parameters to set for the first five relay functions; for the relay with
the Limiting function you need to set the following parameters after you select and confirm
this function:
Min sp.
Max sp.
Delay
Setting the compressor output limit to deactivate the relay – Min sp.
This parameter allows you to set the lower output limit of the outdoor unit compressor in % of
its maximum output. If the relay with Limiting function has been activated due to exceeding
the Max sp., and then the compressor output drops below the Min sp., the relay will be
deactivated. You can set the value from 0.0 to 99.0% by 1%. When the compressor output
drops below the set limit, the relay will be deactivated with about 30s delay.
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Setting the output relay R1 of the control module
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Setting the output relay R2 of the control module
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Setting the output relay R3 of the control module
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Setting the indoor fan control mode
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The relay is controlled by the digital input On/Off of the control
module.
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The relay is controlled identically with the outdoor unit compressor.
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The relay is controlled identically with the defrosting of the indoor
unit evaporator.
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The relay is activated, if an error state is detected.
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The relay is controlled by the current state of the system
(Heat/Cool).
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The relay is activated when the set limit of the compressor output is
exceeded.
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Setting the compressor output limit to deactivate the relay with
Limiting function
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Setting the compressor output limit to activate the relay with
Limiting function
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Setting the period of time for which the Max sp. must be overcome
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