Carrier WeatherMaster Series - Smoke Detector;Fire Shutdown (FSD)

60
SW2
12345 6
ON
Io
Vin
Gnd
Vo
MOUNTING
HOLES
WIRING
OPENING
Vin - J4-1 or J4-4 24Vdc
Io - J4-2 or J4-5 -20mA output
C11087
Fig. 78 -- Space Relative Humidity Sensor T ypical Wiring
Relative Humidity Sensor
(Polarized Male Connector)
J4-1 or J4-4 + 24 VDC Supply Voltage
J4-2 or J4-5 (-) 4 to 20 mA Current Loop Output
to RTU-OPEN
4-20 VAC GND 0-5V
mA or or
VDC 0-10V
SPAN
ZERO
C10839
Fig. 79 -- Duct Relative Humidity Sensor Typical Wiring
Humidistat: The accessory humidistat provides the RTU
Open controller insight to the relative humidity in the
space. The humidistat reads the RH level in the space and
compares it to its setpoint to operate a dry contact. The
humidistat is a dedicated input on the configurable input 9
and tells the RTU Open controller when the RH level is
HIGH or LOW. The normal condition for humidity is
LOW. A normally open humidistat is the factory default
control for the Humidi--MiZer
R
system option.
To wire in the field:
S J5--8 = 24 VAC source for dry contact
S J5--7 = Signal input
Smoke Detector/Fire Shutdown (FSD) —
On 50HC units equipped with factory--instal led Smoke
Detector(s), the smoke detector controller implements the
unit shutdown through its NC contact set connected to the
unit’s CTB input. The FSD function is i nitiated via the
smoke detector’s Alarm NO contact set. The RTU Open
controller comm unicates the smoke detector’s tripped
status to the BAS building control. See Fig. 70 or Fig. 71
(RTU Open Controller wiring diagrams).
The Fire Shutdown Switch configuration,
MENU
 Config  Inputs  input 5, identifies the
normally open status of this input when there i s no fire
alarm.