LT
‐
6137
rev
1.1
7/16/19
25 Interchange way, Vaughan Ontario. L4K 5W3
Phone: 905.660.4655; Fax: 905.660.4113
INSTALLATION AND MAINTENANCE INSTRUCTIONS
Web: www.mircom.com
MIX-4020 MULTI-SENSOR DETECTOR
MIX-4020-ISO MULTI-SENSOR DETECTOR
ABOUT THIS MANUAL
This manual is included as a quick reference for installation. For fur-
ther information on the use of this device with a FACP, please refer to
the panel’s manual. For more information regarding maintenance,
testing, spacing, and locating detectors, please refer to the LT-9420
MIX-4000 series detector technical bulletin.
Note: This manual should be left with the owner/operator of this
equipment
DETECTOR DESCRIPTION
The MIX-4020 smoke detector continuously checks air obscuration
and reports it to the Fire-Alarm panel using a fully digital
communication protocol. It can also measure ambient temperature
and can be set to report an alarm when sampled temperature
exceeds 135F (57C). Excessive temperature rises can also be
reported if the detector is configured for rate-of-rise operation. The
MIX-4020 must be used with a Mircom series 4000 compatible
control panel. Operational mode and levels are selected at the Fire
alarm panel through the Mircom configuration tool. It also has a
remote output that can be controlled by the panel. Please see
specifications for compatible devices that can use the remote output
feature.
Note: MIX-4020-ISO is equipped with a bi-directional short-circuit
isolator to help protect against wiring faults that may otherwise result
in a loop failure."
Before installing this device please thoroughly read this manual and
refer to the applicable codes for guidance on location, spacing and
acceptable use. Also seek guidance from the compatible control
panel instructions for the device operation modes and the
configuration requirements.
Note: If the detector is used with the remote indicator, then the
voltage value of the detector must be at least 18V as the indicators
do not operate below 18V.
FIGURE 1 DETECTOR FRONT:
SPECIFICATIONS
Normal Operating Voltage:
15 to 30VDC
Maximum Alarm Current (LED on):
3.2mA (LED on)
Standby Current:
160uA (LED flashing)
Maximum Input Wiring Resistance:
40 Ohms
Temperature Range (no alarm):
32F to 100F (0C to 37.8C)
Humidity:
10% to 93% Non-condensing
Dimensions:
4 1/4” Diameter, 1 3/4” Height
Mounting:
4” square by 2 1/8” deep box
Accessories:
MIX-4090 Programmer
MIX-4001/4002 Detector Base
RA100Z Remote LED
Wiring range on all terminals:
22 to 12 AWG
INSTALLATION
This detector must be installed on a ceiling or wall using a compatible
base. SLC line and remote output connections for the most common
base MIX-4001 are show in figure 2. A twisted pair cable should be
used for the SLC line. If a shielded cabled is used, connect the
shields to the proper terminal on the base. Do not connect shields to
earth ground. If a ground continuity wire is required by the local
code, it should be a separate conductor. Please note that shielded
cables may reduce the SLC loop length that can be achieved due to
their high capacitance.
The detector address should be programmed using the MIX-4090
hand-held device before inserting the detector on the base.
Addresses 1 to 240 can be used for any device on a SLC loop. Each
device on a loop must have a unique address.
A breakaway tab inside the base can be inserted in the outer rim of
the base to visibly identify each detector with their address. See
figures 2 and 4. The detector can then be placed on the base using
the following steps:
1. Position the detector centrally on its adapter base ensuring it is
level.
2. Rotate clockwise applying gentle pressure. The detector will drop
into its keyed location.
3. Continue to rotate clockwise a few degrees until the detector has
fully engaged in the adaptor base.
4, When the detector is firmly engaged, check the alignment of the
raised reference marks on the detector and on the base (figure 4).
IMPORTANT NOTES ON DETECTOR INSTALLATION
Disconnect loop power before installing the detector.
This detector comes with a dust cover to protect the device during
shipping and when first installed. It is not intended to provide
complete protection against contamination, therefore, detectors
should be removed from their base before construction, major re-
decoration or other dust producing work is started. Dust covers must
be removed before the system becomes operational.
Heat detectors should installed away from normal heat sources. Do
not use in locations where ambient temperature is within 20F (10C)
of the alarm setting. Long term ambient temperature should not
exceed 120F (49C).
When configured for rate of rise operation, do not use heat detectors
in locations such as an heated building entrance where large
temperatures swings can be expected.
Smoke detectors are not to be used with detector guards unless the
combination has been evaluated and found suitable for that purpose.
When duplicate terminals are not provided to facilitate monitoring of
the installation wiring connections, and there is no provision to pre-
vent looping an unbroken wire around or under a terminal, the word
"CAUTION" and the following or equivalent text in letters not less
than 2.38 mm (3/32 inch) high shall be included on the installation
drawing: "FOR SYSTEM MONITORING - FOR TERMINALS "Loop
out (+)" AND "Remote Device (+)", DO NOT USE LOOPED WIRE
UNDER TERMINALS. BREAK WIRE RUN TO PROVIDE MONITOR-
ING OF CONNECTIONS.
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