Trane IntelliPak WEHE Series Installation, Operation And Maintenance Manual page 50

Installation
unoccupied status, heat installed, remote zone
temperature sensor, 12/24 hour time display, and daytime
warm-up. Refer to Table 15, p. 52
Resistance coefficient.
During an occupied period, an auxiliary relay rated for 1.25
amps @ 30 volts AC with one set of single pole double
throw contacts is activated.
Remote Zone Sensor (BAYSENS073*)
This electronic analog sensor features remote zone
sensing and timed override with override cancellation. It is
used when the RTM has been programmed as the source
for zone temperature control. Refer to
Temperature vs. Resistance coefficient.
Remote Zone Sensor (BAYSENS074*)
This electronic analog sensor features single setpoint
capability and timed override with override cancellation. It
is used with a Trane Integrated Comfort™ system. Refer
ton Table 15 for the Temperature vs. Resistance
coefficient.
Remote Zone Sensor (BAYSENS016*)
This bullet type analog temperature sensor can be used
for; outside air (ambient) sensing, return air temperature
sensing, supply air temperature sensing, remote
temperature sensing (uncovered), morning warm-up
temperature sensing, and for VAV zone reset. Wiring
procedures vary according to the particular application
and equipment involved. When this sensor is wired to a
BAYSENS119* Remote Panel, wiring must be 18 AWG
Shielded Twisted Pair (Belden 8760 or equivalent). Refer to
Table 15 for the Temperature vs. Resistance coefficient.
Remote Zone Sensor (BAYSENS077*)
This electronic analog sensor can be used with
BAYSENS119* or 021* Remote Panels. When this sensor is
wired to a BAYSENS119* Remote Panel, wiring must be 18
AWG Shielded Twisted Pair (Belden 8760 or equivalent).
Refer to the specific Remote Panel for wiring details.
Remote Minimum Position Potentiometer
(BAYSTAT023*)
The remote minimum position potentiometer is used on
units with an economizer. It allows the operator to
remotely set the economizer's minimum position (which
controls the amount of outside air entering the unit). Use
the installation instructions that shipped with the
potentiometer to install it, and the appropriate illustrations
in Figure 27, p. 44 or Figure 33, p. 57
unit.
External Auto/Stop Switch (5S67)
A field supplied single pole single throw switch (5S67) may
be used to shut down the unit operation. This switch is a
binary input wired to the RTM. When opened, the unit
shuts down immediately and can be cancelled by closing
the switch. Refer to the appropriate illustrations in
50
for the Temperature vs.
Table 15 for the
to connect it to the
Figure 27 or Figure 33 for the proper connection terminals
in the unit control panel. The switch must be rated for 12
ma @ 24 VDC minimum.
VOM Contacts (5K90, 5K91, 5K92, 5K93, 5K94)
If the unit is equipped with a Ventilation Override Module
(VOM), (i.e. unit model number digit 21+ is a "N"), a
number of special functions can be specified by the
building owner or contractor. These functions can include,
but are not limited to; (1) Unit Off, (2) Pressurization, (3)
Exhaust, (4) Purge, and (5) Purge with Duct Pressure
Control. They are controlled by binary inputs wired to the
VOM. These functions can be initiated by; a toggle switch,
a time clock, or an ICS™ output. The switch must be rated
for 12 ma @ 24 VDC minimum. The following preset
sequences can be modified by the customer;
1. VOM Mode "A" Priority 1 - Unit Off:
– Supply fan - OFF
– VFD - 0% (if equipped)
– Exhaust fan - OFF, Exhaust dampers Closed
– O/A dampers - Closed
– Heat - All stages OFF, Modulating Heat output at 0
vdc
– Occupied/Unoccupied output - Deenergized
(Occupied)
– VO Relay - Energized
– Preheater State - Off (if equipped)
2. VOM Mode "B" Priority 2 - Pressurize:
– Supply fan - ON
– VFD - 100% (if equipped)
– Exhaust fan - OFF, Exhaust dampers - Closed
– O/A dampers - Open
– Heat - All stages OFF, Modulating Heat output at 0
vdc
– Occupied/Unoccupied output - Energized
(Unoccupied)
– VO Relay - Energized
– Preheater State - Off (if equipped)
3. VOM Mode "C" Priority 3 - Exhaust:
– Supply fan - OFF
– VFD - 0% (if equipped)
– Exhaust fan - ON, Exhaust dampers - Open
– O/A dampers - Closed
– Heat - All stages OFF, Modulating Heat output at 0
vdc
– Occupied/Unoccupied output - Deenergized
(Occupied)
– VO Relay - Energized
– Preheater State - Off (if equipped)
RT-SVX35H-EN