KMC Controls SAE-1162 User Manual
Mounting
Carbon Monoxide (CO) Detectors
SAE-1111/1112/1162
Installation Guide
SAE-1111/1112 Space Mount
Install the unit at least ve feet above the nished
oor of the area to be controlled. Do not install
near doors, windows, supply air diusers of other
known air disturbances. Avoid areas prone to vibration or rapid temperature change.
1. On the mounting surface, mark and drill the four
mounting holes (for screws) and remove any
debris from all holes.
2. Aach the unit to the surface by threading four
screws through the four mounting holes.
3. Remove the two cover screws (if installed),
release the latch, and swing open the cover.
4. Insert wiring through a knockout.
5. After wiring, conguring, and testing the
unit (see later sections), close the cover and
(optionally) secure it with two (supplied) selftapping screws.
SAE-1162 Duct Mount
101 mm
4"
64 mm
2.5"
145 mm
5.7"
114 mm
4.5"
145 mm
5.7"
114 mm
4.5"
ALARM
89 mm
3.5"
SAE-1111/1112
Choose a mounting location in a straight section of
a return air duct. Mount at least 5 feet (or 7.5 duct
101 mm
4"
ALARM
89 mm
3.5"
diameters) from corners and other items that may
cause disturbances in the air ow. Avoid areas prone
to vibration or rapid temperature change.
1. Cut a 1-1/8 or 1-1/4 inch hole in the duct for the
air sampling probe.
64 mm
2.5"
240 mm
9.5"
SAE-1162
2. Insert the probe through the hole, align the unit
so that the duct air ow is parallel with the side
vent holes in the probe (air ows directly into
the probe holes), and mark the four enclosure
mounting holes.
3. Drill the four mounting holes (for screws) and
26 mm
1"
remove any debris from all holes.
4 . Insert the sampling probe into the duct.
5. Aach the unit to the ductwork by threading four
177 mm
7.0"
screws through the four holes on the outside of
the enclosure.
6. Remove the two cover screws (if installed),
release the latch, and swing open the cover.
7. Insert wiring through a knockout. After wiring a
duct sensor, ll the knockout hole with plumber’s
SAE-1111/1112/1162 Carbon Monoxide (CO) Detectors 1 Installation Guide
puy, caulk, or other sealant to prevent air
inltration from the conduit.
8. After wiring, conguring, and testing the
unit (see later sections), close the cover and
(optionally) secure it with two tapping screws.
Wiring
Use 22 AWG shielded wiring for all connections. Do
not locate device wires in the same conduit with wiring used to supply inductive loads.
1. Connect the positive DC voltage, or the hot
side of the AC voltage, to the terminal marked
POWER (but do not apply power until all wiring
is completed and Volt/mA position is selected).
2. Connect the power supply common to the
terminal marked COM. The device is reverse
voltage protected and will not operate if
connected backwards.
NOTE: The detectors have a half-wave power
supply with the common the same as the
output signal common. If several units are
connected to one power supply, output
signals share the same signal common.
However, KMC recommends using a
separate transformer for each device.
CAUTION
Use caution when grounding the secondary of an
AC transformer, or when wiring multiple devices,
to ensure that the circuit ground point is the same
on all devices and the controller. See Application
Note AN0604D “Tips for connecting 24-volt power”
available from the KMC Controls web site or in the
SP-022 Digital Designer Guide.
4–20 mA Wiring and
Switch Setting
3. Select the desired analog signal output switch
position for either Current (4–20 mA) or Voltage
(a menu item in the on-screen conguration
selects 0–5 VDC or 0–10 VDC).
CAUTION
The 4-20 mA current output signal operates in the
active mode and does not require a loop power
supply. The signal current is generated by the SAE11xx detector and must not be connected to a
powered input or device damage will result.
4. Set the input jumpers/pull-up resistors on the
KMDigital or BACnet controller for the desired
active voltage or current according to the
controller’s instructions.
5. Connect the detector’s OUT terminal to the
controller’s input (referenced to the COM
terminal) according to the illustration.
NOTE: See also Application Note AN0504L
“Connecting inputs and outputs to KMC
controllers” available from the KMC
Controls web site or in the SP-022 Digital
Designer Guide.
0–5/0–10 VDC Wiring
and Switch Setting
(Space Sensor Boards Shown Above—Switch and Terminal
Positions in Duct Sensors Have Altered Locations)
SAE-1111/1112/1162 Carbon Monoxide (CO) Detectors 2 Installation Guide
NOTE: The sets of optional (form “C”) relays feature
Normally Open (NO), Normally Closed
(NC), and Common (COM) terminals. The
relay output is completely isolated. The
COM terminal is NOT connected to the
signal or power supply COMMON terminal.
(The contacts are rated at 5 A @ 250 VAC, 5 A
@ 30 VDC, power factor = 1.)
Operation
NOTE: Pressing the TEST buon (when enabled)
tests the buzzer, analog output, and relays.
The Test function may also be initiated re-
motely by shorting the TEST + and TEST –
terminals. (The TEST – terminal is internally
connected to the Analog COM terminal, and
if desired, only one wire need be connected
to the TEST + terminal if the power supply
COM is used as the return signal path.) The
TEST terminals should only be connected to
a remote switch or dry-contact.
CAUTION
Ensure no power is applied to the TEST terminals.
Warm-Up Mode
1. Verify that the detector is properly wired and all
connections are tight.
2. Apply power.
The LCD display briey indicates the software version number and begins a warm-up period of about
2 minutes. During the warm-up, the alarm beeps
three times, the LED ashes red, the signal output
is xed at 4 mA or 0 VDC, and the relays are o.
After the warm-up period ends, the sensor reads
the CO level, outputs the correct analog signal, and
displays the value on the LCD.
Normal Mode
In normal operation, the sensor will measure the CO
level and output a proportional value on the analog
output, which is scaled to the default range of 0–300
ppm. The CO reading will also be displayed on the
LCD. If alarm relays are installed, the present CO
reading is compared to the setpoints and appropriate
action is taken if an alarm condition exists. The status
LED on the front cover will be green to indicate normal operation.
Alarm Mode
Automatic Alarm Reset (Default)
The CO reading is compared to setpoints for alarms,
and if exceeded, the device enters Alarm mode.
and 2 minute delay time. Relay 2 defaults to a 150
ppm trip point, 20 ppm hysteresis, and 2 minute
delay time All of these values can be changed via the
menu. In the example for Relay 1, a timer is started
when the CO level exceeds 50 ppm (the trip level). If
the level drops below 50 ppm before 2 minutes (the
delay time) has expired, then the relay is not activated. If the CO level exceeds 50 ppm for 2 minutes,
then the relay is activated. The relay will remain
activated until the CO level drops below 40 ppm
(the trip level minus the hysteresis/deadband). This
relay could be used to signal a “low alarm.” Relay 2
operates in the same manner and has independently
programmable trip point, hysteresis, and delay time.
This relay could be used to signal a “high alarm.”
The LCD will indicate the Alarm mode details, and
the LED will ash red.
The buzzer alarm is enabled by default with a 150
ppm trip point and 5 minute delay time. It can be
programmed similarly to the relays. When the trip
point is exceeded for a time longer than the delay
time, the buzzer will sound until the CO level falls
below the trip point. The buzzer operates independently of the relay alarms and can be disabled via
the menu. If enabled, pressing the TEST buon
will silence the buzzer (only) during Alarm mode.
Buzzer silence will hold only until that alarm condition is cleared.
Manual Alarm Reset
For models with optional alarm relays installed
(see Models on page 9), the trip point, hysteresis
(deadband), and delay time of each relay can be
programmed via the menu. For example, Relay 1
defaults to a 50 ppm trip point, 10 ppm hysteresis,
SAE-1111/1112/1162 Carbon Monoxide (CO) Detectors 3 Installation Guide
For this option, the alarm relays will activate the
same way as described above but will not automatically reset to Normal Mode when the CO level drops
below the trip level. In order to reset the relay alarms
to Normal Mode, the user must also press the TEST
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