Installation and Operating Instructions
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17614_ins_wireless_900_rcvr
Specifications subject to change without notice.
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Building Automation Products Inc., 750 North Royal Avenue, Gays Mills WI 54631 USA
Tel. +1-608-735-4800
Fax +1-608-735-4804
E-mail:[email protected]
Web:www.bapihvac.com
Page 1 of 4
Rev 05/07/2007
The BAPI 900 MHz unit receives a repeated or retransmitted RF signal from one or more wireless temperature or
humidity transmitters. The transmitter signal (418 MHz) is received by a BAPI Repeater and then re-transmitted at
900 MHz up to 1,000 feet to the 900 MHz Receiver.
The 900 MHz Receiver then outputs the values to any Analog Output Module through an RS485 four-wire bus. The
output module converts the signal to an analog voltage, current or resistance for the controller. The 900 MHz
Receiver can accommodate up to 127 different output modules. The receiver is surface, snaptrack or din rail
mountable with an attached antenna or a 79” extendable antenna.
900 MHz Receiver
900 MHz Receiver Front View
#2 Philips Screwdriver, Drill, Wire
1. Apply power to the receiver, repeater and output modules. (Note: Apply loop power to the current output module.)
2. The power LED on the Receiver should light and remain lit. The powered analog output module's LED should
flash and go out. (The flash is very quick.)
5. Remove the cover of the transmitter and install the batteries, observe polarity. The small LED at the bottom right,
next to the Transmitter Training Button, should flash approximately once every 10 seconds. (The flash is very
quick.)
6. Pick a transmitter and an analog output module you want to train to recognize one another. Press and hold the
plastic service button on the top of the Output Module, at the same time press for one second and release the
button on the transmitter. When the LED on the output module lights, release its button (The LED will go out
when you release the button). The output module will now report the environmental conditions from the
transmitter trained to it. The output module's LED will quickly flash whenever it receives an update from the
transmitter.
7. Mount the transmitter at the desired location. If needed, remove the batteries to do so. The units will remain
trained to one another through power failures and battery replacement.
8. Replace the transmitter's cover and back out the security screws.
Input Power
Power to Analog
Output Modules
Analog Output
Modules
Communications
May be ordered with a
dipole antenna on a 79" wire,
not shown
