Sensor Mounting; Conductors And Terminal Identification; Operating Power (2 Wires); Remote Zone Temperature Sensor (2 Wires Optional) - Trane BAYSENS019C Installer's Manual

Sensor Mounting

1. Mounting location.
Choose a location on an interior
wall near the return air grille,
approximately five feet above
floor level, where air circulates
freely and is of average
temperature for the zone.
Avoid areas such as: behind
doors; on outside walls, or any
walls with unconditioned areas
behind the sensor; in direct
sunlight, or any source of
radiant heat that could affect the
temperature measurements; in
line with the discharge air from
the unit being controlled.
2. Mounting the sub base. The
mounting hardware is contained
in a plastic bag that includes;
– 3 - plastic wall anchors
– 3 – mounting screws
– 1 – terminal strip (TB), set
aside for later use.
Remove the sensor from its sub
base.
a. Hold the Sensor with one
hand and firmly grasp the
sub base with the other
hand. Gently pull the bottom,
away and upward. Refer to
Figure 1.
After disassembling the sensor,
protect the internal surface from
contacting objects or substances
that could cause damage.
To determine the appropriate
number of wires required, refer
to Figure 3.
Route the wires from the wall
through the wire access hole in
the sub base. Refer to Figure 2.
Mount the sub base directly on
the wall or on a 2X4 handy box
(Handy Box must be installed
Horizontally).
a. To mount the sub base
directly on the wall, hold it in
place and mark the three
holes. Drill three 3/16 inch
(4.8 mm) holes. Gently tap
the plastic anchors into the
holes until they are flush
with the wall. Level the sub
5

Installation

base and firmly tighten the
mounting screws. OVER
TIGHTENING THE SCREWS
could crack the sub base.
To mount the sub base on a 2X4
handy box mounted
horizontally, Level the sub base
and firmly tighten the mounting
screws. OVER TIGHTENING THE
SCREWS could crack the sub
base.
If the handy box is installed
vertically, a mounting plate and
adapter kit (#BAYMTPL003B) is
required. Follow the instructions
that are enclosed with the
mounting kit.
Seal the hole in the wall behind
the sub base.
Figure 1. Removing the Sensor
from the Sub Base
Figure 2. Mounting the Sub Base
SUBBASE
TERMINAL BLOCK PC BOARD
Figure 3. Terminal Strip Wiring
Conductors and Terminal
Identification

Operating Power (2 Wires)

24 VAC power supplied from the Unit
Control provides the operating
power for the ZSM. The power
supply should be connected to the
terminals 11 & 14 on the ZSM.
Note: IntelliPak: Supply Voltage is
12 - 15 VAC
Remote Zone Temperature
Sensor (2 Wires Optional)
The ZSM supports the use of a
remote zone temperature sensor.
The remote sensor should be a
thermistor type sensor (Baysens017).
When connecting the remote sensor,
use terminals S1 and S2 on the ZSM.
Connect the Shield wire (drain wire)
from the shielded cable to terminal
11 on the ZSM.
Note: When using a remote sensor,
Option # 11 in the OPTION
MENU must be set to "1" .

Communication (1 Wire)

Data communication between the
UCM and the ZSM is accomplished
over a serial link connected at
terminal 12 on the ZSM.
UCM Status Inputs (4 Wires
Optional)
The ZSM can be wired to receive
four (4) operating status signals from
ACC-SVN28A-EN