Dry Contact Operation - Daikin TSTATD4271C Installation And Maintenance Manual

Auxiliary Output Programming By Temp
If TEMP is selected for the Aux Output, the following setup
steps will appear:
Aux Output Temp Source (Setup Step 64) – Specifies what
temperature source will be monitored for controlling the
programmable output.
The options are:
Thermostat – Temperature is monitored from the thermostat
sensor.
Outdoor Sensor – Temperature is monitored from the
Outdoor temperature sensor.
Wired Remote – Temperature is monitored from a wired
sensor connected to the Remote Sensor terminals.
External – The Auxiliary Output is controlled from an
external accessory source.
Aux Output Trigger Point Temp (Setup Step 65) – Specifies
the temperature from the above selected source above which
the Aux Output is triggered. A non-adjustable two degree
deadband is applied to avoid frequent triggering. The 'N.O.'
(Normally Open) or 'N.C.' (Normally Closed) function (Setup
Step 57) can be altered to make the output trigger below the
set temperature. Temps are adjustable from 0–120 degrees
Fahrenheit.
Aux Output Error Level
(Setup Step 66)
When the Aux Output is set for ERROR, three choices of error
levels exist:
Level 1 – Aux Output is active if a Critical, Alarm, or Alert error
is present.
Level 2 – Aux Output is active if a Critical or Alarm error is
present.
Level 3 – Aux Output is active only if a Critical error is present.
Critical Error – Service or immediate attention is required.
Alarm Error – Service or immediate attention is recommended.
Alert Error – Runtimes, Low Battery on wireless remote
sensors, etc.
Comfort Recovery
(Setup Step 69)
Comfort Recovery turns on the heat before the Occupied start
time to bring the room temperature to the Occupied setpoint
at the start of the Occupied time period. Please allow 4–8
days for Comfort Recovery time to adjust. When used with a
heat pump, electric strip heat will be disabled while Comfort
Recovery is active.
IM 1227 • MODELS DC THERMOSTATS
7-D P C
ay rogrammable

Dry Contact Operation

(Setup Step 70–71)
Dry Contact Polarity
(Setup Step 70)
Figure 24: Dry Contact Positions
Open (Normally Open)
The dry contact is open until
the connected device closes
the circuit.
Dry Contact Use
(Setup Step 71)
PAN – If PAN is selected when the dry contact is active,
the thermostat will lockout the compressor terminal(s) and
"SERVICE DRAIN PAN" will appear on the display.
HOLIDAY/FORCE UNOCCUPIED – If Holiday is selected
when the dry contact is active, the thermostat will be forced
into Holiday Mode. *This setting may be used with time clocks
or twist timers to force the thermostat from Occupied to
Unoccupied.
28
D T
ommerCial igiTal hermosTaTs
Closed (Normally Closed)
The dry contact is closed until
the connected device opens
the circuit.
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