User Manual

WRS-TTx Series Radio Frequency (RF) Wireless Transmitters Installation Instructions 3
Accessories
Table 1: Accessories (Order Separately)
Code Number Description
TP2420
Transformer, 120VAC Primary to 24Vac Secondary, 20VA, Wall Plug
TE-7820-100
RF Wireless Receiver Signal Strength Site Survey Tool
T-4000-119
Allen-Head Adjustment Tool (30 per Bag)
Mounting
Hardware is included with each component of the
WRS Series RF Wireless Temperature Sensing
System, allowing for a variety of mounting scenarios.
The preferred mounting method for the transmitter
uses the two expandable wall anchors included with
the unit. Double-sided adhesive foam tape is also
provided with each transmitter for installations where
building retention and its historical preservation are
important, or in buildings featuring marble, granite,
glass, mirrored, wood veneer, or other decorative
surfaces.
Transmitter Location Considerations
Consider the following guidelines when selecting a
mounting location for the WRS-TTx Series
RF Wireless Temperature and Set Point Transmitter:
• Locate the transmitter so that it is easily
accessible.
• Locate the transmitter on the same floor.
(Mounting one floor above or one floor below the
receiver may work, but will dramatically reduce the
RF signal range.)
• Locate the transmitter on an inside wall away from
water pipes and air ducts, minimally 54 in. (1.4 m)
above the floor level, in an area that accurately
represents the temperature of the controlled
space.
• If possible, locate the transmitter in the line of sight
with the receiver, to minimize signal transmission
loss.
• Check that there are no metal objects (including
equipment rooms and elevator shafts) blocking the
RF transmission signal from the transmitter to the
receiver.
• Do not mount the transmitter in recessed areas, in
shelving units or metal enclosures, or behind
curtains or doors.
• Do not mount the transmitter in areas that are
exposed to direct sunlight or condensation, or in
areas that are in close proximity to various heat
sources.
• Do not mount the transmitter in areas susceptible
to warm or cool drafts such as lobbies, walkways,
or near a bank of computers.
• Do not mount the transmitter less than 2 ft (0.6 m)
from the receiver.
• The distance between two or more transmitter
mounting locations is irrelevant.
Removing the Transmitter from its Mounting Base
The WRS-TTx Series Transmitter ships from the
factory pre-assembled to its mounting base. In order to
secure the assembly to a surface, the transmitter must
first be removed from its mounting base (as illustrated
in Figure 2).
Diagram of Sensor Transmitter Cover and Base
Figure 2: Removing the Transmitter from its
Mounting Base