Main Electrical Power; Requirements; Low Voltage Wiring (Ac & Dc); Field Installed Power Wiring - Trane Axiom GWS Series Installation, Operation And Maintenance Manual

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Table Of Contents

Table of Contents

I I n n s s t t a a l l l l a a t t i i o o n n

1 through 3 and go on to next step in the installation

process.

Table 4. TCO-A replaced for horizontal duct

configuration

Unit Model

Electric Heater

Number

Model Number

GWSC092H3

BAYHTRU336

GWSC092H4

BAYHTRU436

GWSC120H4

BAYHTRA454

BAYHTRAW36, W54

GWSC120HW

BAYHTRW327, 336

GWSC072H3

BAYHTRU427, 436

GWSC072H4

BAYHTRWW27,

GWSC072HW

1. Remove the heater section access panel and open

the electric heater dead front panel.

2. TCO-A is the limit control located in the central or

right part of the heater mounting plate and that is

located on the bottom of the two heater element

assemblies. To replace this device, first remove the

two wires connected to the terminals. Next, remove

the two screws which secure it to the heater

element mounting plate. Once TCO-A has been

removed from the heater element mounting plate,

discard this device.

Figure 41. TCO-A location

TCO-A location

Center

Right

Center

W36

3. Obtain the replacement TCO-A which is secured by

a wire tie near the electric heater terminal block in

the heater compartment. Attach it to the heater

element mounting plate with the two screws that

were removed in step 2 above. Connect the two

wires that were un-hooked in step 2 to the terminals

on the new TCO-A. Refer to the heater package

wiring diagram to assure that the wiring is

connected properly.

4. Close the electric heater dead front panel and

replace heat section access panel.

Electrical Requirements

W W A A R R N N I I N N G G

P P r r o o p p e e r r F F i i e e l l d d W W i i r r i i n n g g a a n n d d G G r r o o u u n n d d i i n n g g

R R e e q q u u i i r r e e d d ! !

F F a a i i l l u u r r e e t t o o f f o o l l l l o o w w c c o o d d e e c c o o u u l l d d r r e e s s u u l l t t i i n n d d e e a a t t h h o o r r

s s e e r r i i o o u u s s i i n n j j u u r r y y . .

A A l l l l f f i i e e l l d d w w i i r r i i n n g g M M U U S S T T b b e e p p e e r r f f o o r r m m e e d d b b y y q q u u a a l l i i f f i i e e d d

p p e e r r s s o o n n n n e e l l . . I I m m p p r r o o p p e e r r l l y y i i n n s s t t a a l l l l e e d d a a n n d d g g r r o o u u n n d d e e d d

f f i i e e l l d d w w i i r r i i n n g g p p o o s s e e s s F F I I R R E E a a n n d d E E L L E E C C T T R R O O C C U U T T I I O O N N

h h a a z z a a r r d d s s . . T T o o a a v v o o i i d d t t h h e e s s e e h h a a z z a a r r d d s s , , y y o o u u M M U U S S T T f f o o l l l l o o w w

r r e e q q u u i i r r e e m m e e n n t t s s f f o o r r f f i i e e l l d d w w i i r r i i n n g g i i n n s s t t a a l l l l a a t t i i o o n n a a n n d d

g g r r o o u u n n d d i i n n g g a a s s d d e e s s c c r r i i b b e e d d i i n n N N E E C C a a n n d d y y o o u u r r l l o o c c a a l l / /

s s t t a a t t e e / / n n a a t t i i o o n n a a l l e e l l e e c c t t r r i i c c a a l l c c o o d d e e s s . .

Main Electrical Power Requirements

•

Verify that the power supply complies with the unit

nameplate specifications.

•

Inspect all control panel components; tighten any

loose connections.

•

Connect properly sized and protected power supply

wiring to a field-supplied/installed disconnect

switch and to the main power terminal block (HTB1)