Installation Manual

52
Installation Manual
Rev. 2.00 Date 01-2019
2
The zone controlled from the Wireless Thermostat cannot be remotely accessed. After 45
minutes, its damper(s) will open and remain open until the problem is fixed.
3
If the thermostat is replaced, only perform the initial configuration (see section Initial
configuration). All other parameters and settings will be recovered automatically from the DZK
Control Board.
13BThe AC unit does not start even if everything is OK. After setting any mode, the Wired
Thermostat shows User mode STOP
1
Verify that there is a jumper between the contacts of the Alarm connector (see section DZK
Zoning box, Connection).
14BWhen accessing Remote zones, one of them is not listed
1
Verify that the thermostat of the zone missing is working correctly. To this end,
activate/deactivate the zone and check that the damper opens/closes correctly.
2
The zones controlled for Wireless Thermostats or Wireless Lite Thermostats. After a power supply
failure, it can take up to 4 minutes to have all the zones remotely accessible.
15BOn activating the zone, no air is supplied to its grille(s) if the fan coil is on
1
Verify that the damper assigned to the thermostat is not blocked by the insulation stopper (see
section DZK Zoning box, Assembly).
2
Verify that the motor is electrically connected properly. There is a connection at about 4 inches
from the actuator (see section DZK Zoning box, Connection).
3
Verify in the actuator connection indicated above, that when demand is created from the
thermostat, there are 12VDC between the contacts indicated above. This voltage will be present
for about 5 seconds (see section DZK Zoning box, Connection).
4
Verify that the zone assigned to the thermostat is the correct one. If it is not the correct damper,
proceed to reset the incorrectly assigned thermostats and reassign to the correct zones.
To reset the thermostats, follow these steps:
- Wired Thermostat: Advanced configuration menu > Wired Thermostat > Zone parameters.
- Wireless Thermostat: Advanced configuration menu > Wireless Thermostat.
- Wireless Lite Thermostat: Wireless Lite Thermostat reset.
In order to re-configure the thermostats, see section Initial configuration.
16BIf one or more zones do not control the temperature
1
Verify that the User mode is not Stop.
2
Verify room and set point temperatures in the non-working zone thermostat to see if it is creating
demand.
3
Verify that the damper actuator is connected properly at about 4 inches from the actuator (see
section DZK Zoning box, Connection).
4
Verify that the LEDs D5 and D6 located in the DZK Interface Board mounted over the Control
Board are blinking (see section DZK Interface Board auto diagnosis). If D5 and D6 do not display
normal behavior (constant blinking), verify the wiring between the DZK Interface Board and the
Indoor Unit (see section DZK Interface Board, Connection and configuration).