Install Instructions

915 zMH
iO- P WR WIRELESS RELAY
Installation, Operation Manual
INTRODUCTION
The iO-WRP wireless relay system consists of 2 units; an iO-WRP-B Base Transceiver
and an iO-WRP-S Satellite Transceiver. The base transceiver is equipped with 3 digital
input channels and 1 relay output channel. The satellite transceiver has 1 digital input and
3 relay output channels. The digital inputs are compatible with 24VAC HVAC systems. The
outputs are switched through onboard relays. When properly installed and configured, the
iO-WRP system provides reliable wireless communication between two devices. Although
the iO-WRP has a line-of-site transmission distance of up to 1,320 feet, unimpeded
communication between the two devices can vary depending on size and composition of
obstacles in the transmission path.
The iO-WRP communicates on the 915MHz frequency band and is FCC certified and
approved for use in the United States, Canada, Australia and New Zealand.
Each transceiver is equipped with a bi-color LED that is used to indicate its operational
state. The transceivers also have a momentary pushbutton which is used to “pair” two units
together or “unpair” previously paired units.
NOTE: The wireless relay transceivers are already factory paired and will begin to
communicate once 24 volts is applied to each unit.
I
NSTALLATION
Both the base and satellite
transceiver require continuous
24 .VAC
iO- P-B Base WR
Transceiver Module
1.Mount the iO- P-B Base WR
Transceiver on a non-metalic
surface in a location that allows
access to the thermostat wiring
at the indoor unit.
Do not mount inside the unit
cabinet or inside any metal
enclosure as this will greatly
impede transmission
distance.
2. Once the base transceiver is mounted, take the access cover off by removing the two
screws. Refer to the iO-WRP wiring diagram that best suits the application. Depending on
the application, not all channels may be required.
3. Use only 18-gauge solid (not stranded) thermostat wire. When connecting wires to the
transceiver terminals, strip approximately 1/4” of insulation and push wire into designated
terminal. Snug but do not over-tighten the terminal screws.
LED
WR BASEP-B
TRANSCEIVER
ACCESS COVER
REMOVED
Antenna
Pushbutton
LED
1