Trane Axiom GEH-E006 - External Smoke Detection Wiring to; Unit; Deluxe Controller; UC400 B Controller

WSHP-SVX01Y-EN
55
Figure 59. Deluxe controls general alarm and
compressor disable
Deluxe board (1U1) connections
AL1, AL2 - Alarm Contact output
CD1, CD2 - Compressor Disable input (24VAC)
For controls using DC analog input/outputs, see
appropriate installation, operation and diagnostic
manuals for connection, CNT-SVX11*-EN (ZN524). For
installation, operation and programming see BAS-
SVX065*-EN (UC400).
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sseerriioouuss iinnjjuurryy..
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External Smoke Detection
Wiring to Unit
Deluxe Controller
To inhibit operation of the compressor and fan for a
safety shutdown, it is necessary to break the wire (21X)
from the 24Volt transformer to the 1TB1 terminal block.
This can be done with the dry contacts of a relay. When
that connection is opened, it terminates voltage to both
the deluxe controller and the thermostat, which stops/
prevents all control function to the fan and compressor.
UC400B Controller
To inhibit operation of the compressor and fan for a
safety shutdown, it is necessary to break the wire (21A)
from the 24Volt transformer to the UC400B (1U1). This
can be done with the dry contacts of a relay. When that
connection is opened, it terminates the power voltage
to the controller, which stops/prevents all control
function including the fan and compressor.
ZN524 Controller
To inhibit operation of the compressor and fan for a
safety shutdown, it is necessary to break the wire (21X)
from the 24Volt transformer to the 1TB1 terminal block.
This can be done with the dry contacts of a relay. When
that connection is opened, it terminates the power
voltage to the controller which stops/prevents all
control function including the fan and compressor.
Blower Motor Speed-Tap
Retrofit
NNoottee:: For GEH/V 0.5 to 5 ton units only.
Motors installed in the unit include 4-speed or 3-speed
configurations. All voltages include a 4-speed
configuration, with the exception of 380V, 415V, 460V
which contain a 3-speed arrangement and 575V which
contains a 2-speed arrangement. To modify the rpm of
the motor, the following steps must be followed.
WWAARRNNIINNGG
HHaazzaarrddoouuss VVoollttaaggee!!
FFaaiilluurree ttoo ddiissccoonnnneecctt ppoowweerr bbeeffoorree sseerrvviicciinngg ccoouulldd
rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy..
DDiissccoonnnneecctt aallll eelleeccttrriicc ppoowweerr,, iinncclluuddiinngg rreemmoottee
ddiissccoonnnneeccttss bbeeffoorree sseerrvviicciinngg.. FFoollllooww pprrooppeerr
lloocckkoouutt//ttaaggoouutt pprroocceedduurreess ttoo eennssuurree tthhee ppoowweerr
ccaann nnoott bbee iinnaaddvveerrtteennttllyy eenneerrggiizzeedd.. VVeerriiffyy tthhaatt nnoo
ppoowweerr iiss pprreesseenntt wwiitthh aa vvoollttmmeetteerr..
IInnssttaallllaattiioonn