If you're unsure which operation mode of the RTD-20 you require, please see the article: What is the RTD-20 used for?
When ALL DIP switches are set to Off:
In this case the RTD-20 is set as Retail Primary Shop Floor Zone. Note following behaviour:
- Start-up behaviour after UNOCCUPIED period is described on page 10 of the RTD-20 installation instructions.
- During TRADE operation, and once the startup period of 15 minutes is completed, the FAN and LOUVRE buttons will be completely unlocked, and the SETPOINT will be unlocked but limited to the specified setpoint range. The mode display will indicate AUTO.
- During PRE-TRADE and POST-TRADE operation the Remote Controller will be completely locked.
- When UNOCCUPIED all systems are switched off and locked.
- Note that timers mentioned in the installation isntructions are internal.
When DIP switches 2 and 3 are set to Off, and any of 5 - 8 is ON:
In this case the RTD-20 is set as Secondary Shop Floor Zone. The behaviour is as that of the Retail Primary Zone (see above)
When DIP switch 2 is set to Off and DIP switch 3 to On, and any of 5 - 8 is ON:
In this case the RTD-20 is set as Secondary User Control Zone. Note following behaviour:
- When the primary zone is UNOCCUPIED the remote controller is locked and the A/C unit is switched off. The User Control Zone is unlocked when the primary zone is either OCCUPIED, or in TRADE, depending on User Zone Type set by input S3.
- The unit can be switched on and off by the user when unlocked. When the zone is unlocked the Remote Controller is restricted to allow only AUTO and FAN modes (mode inhibit like with RTD-NET is not possible). If other modes are selected the mode will be overridden. At the start of occupancy the mode is always reset to AUTO.
Further information
Please see the article How to install the RTD-20 and the attached RTD-20 installation instructions.