Installation Manual

53
Installation Manual
Rev. 2.00 Date 01-2019
5
Verify that no ERROR number is shown on the screen (see section DZK Exception codes, Errors and
section Errors in Wired and Wireless Thermostats).
17BThe damper-modulating functionality does not work as expected
1
Verify that the damper REG level is located as configured in the Type of opening parameter (see
section Damper setting and section System parameters).
18BIn Heat mode, when trying to change to Cool mode, the thermostat returns to Heat mode
1
The operation mode in the installation is controlled by the Daikin master indoor unit. The
operation mode can only be changed from the DZK Main Wired thermostat connected to Daikin
master indoor unit.
19BIn Heat Pump installations, the DZK zoning box connected to a slave indoor unit,
changes to Stop mode
1
This is caused by the incompatibility between the subordinate unit mode and the master unit.
Check the master unit is not operating in Fan mode (see User manual).
20BDefrost mode on the indoor unit don’t work properly
1
If the Daikin indoor unit has start/stop cycles in periods shorter than 30 minutes, set the dip
switch #2 in the DZK Interface Board to ON.
21BThe DZK system does not detect the DZK BACnet Interface
1
Verify that the LED D9 is blinking and LEDs D7 and D8 are alternately blinking (see section DZK
BACnet Interface auto diagnosis).
If the above is not displayed, check the correct connection of the gateway on the DZK Control
Board, verifying the 4-pin connector.
22BThe Interface for use in BACnet cannot be connected
1
Verify that LEDs situated on the Ethernet connector (see section DZK BACnet Interface auto
diagnosis) are blinking, and those in the Ethernet connector are active. If the above is not true,
check that the Ethernet cable is properly connected
23BThe indoor unit starts with the system set on off (off or user mode on Stop)
1
Verify that the Setback field setting on the Daikin indoor unit is disabled (see section DZK
Interface Board, Connection and configuration).