Auxiliary Alarm Switch - Daikin EEV Series Installation Instructions Manual

ACC-OUT
TB5
(Accessory)
ACC-IN
(Accessory)
FUSE
X3A
EEV
CO IL
. INDOOR UNIT COMMUNICATING BOARD (PCB)

15.1 Auxiliary Alarm Switch

The control is equipped with two Auxiliary Alarm termi-
nals, labeled TB4 and TB5 which are typically utilized in
series with a condensate switch but could also be used
with compatible CO
2
The auxiliary alarm switch must be normally closed and
open when the alarm occurs. For example, a normally
closed condensate switch will open when the base pan's
water level reaches a particular level. The control will
respond by turning off the blower motor and outdoor unit
and displaying the proper fault codes. If the switch is
later detected closed for 30 seconds, normal operation
resumes and the error message is removed. (The switch
is closed as part of the default factory setting.) The error
will be maintained in the equipment's fault history. See
Figures 15 and 16 for the connection location.
A UXA LA R M
TB1
TB4 TB2
SEG2
SEG1
X15A
PRESSURE SENSOR THERMISTOR
sensors or fire alarms.
X8A
RX LED
CPU LED
7seg
7seg
X5A
Figure 15
TB5
ALARM
TB4
13
C R 2 1
C C R R 2 2 1 1
X13A
X12A
STATUS LE D
Micro
Processor
SWITCH
Figure 16