Trane 15608 Assembly instructions

KIT #15608
INSTALLER'S GUIDE
For 2/4TEC3F60B
IMPORTANT—ThisDocumentiscustomerpropertyandistoremainwiththisunit. Please return to serviceinformationpackuponcompletionofwork.
© 2009 Trane
GENERAL
This document provides installation and
checkout procedures for Kit #15608. This relay
kit is to be applied to any 2/4TEC3F60B air
handler that has a conventional indoor blower
relay. Under certain conditions it is possible
for the original factory blower relay to create a
voltage spike to the control circuit of the in-
door blower motor. If the indoor blower motor
is on speed tap #4 this voltage spike can dam-
age the internal blower motor control circuit
causing the blower motor not to operate. This
Kit #15608 will prevent voltage spikes from
being applied to the indoor blower motor con-
trol circuit.
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
KIT15608-IG-1
WARNING:
HAZARDOUS VOLTAGE- DISCONNECT POWER and DISCHARGE
CAPACITORS BEFORE SERVICING
12/09
▲WARNING
!
This information is for use by individuals having
adequate backgrounds of electrical and mechan-
ical experience. Any attempt to repair a central
air conditioning product may result in personal
injury and/or property damage. The manufacturer
or seller cannot be responsible for the interpreta-
tion of this information, nor can it assume any
liability in connection with its use.
▲WARNING
!
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lock-
out/tagout procedures to ensure the power can
not be inadvertently energized. Failure to discon-
nect power before servicing could result in death
or serious injury.
INSTALLATION
1. Remove the power from the air handling
unit.
2. Remove the existing blower relay. Note the
location and orientation. Mark all of the
wiring so it can be reconnected to the new
relay in the kit. Save the mounting screws
to be reused.
3. Mount the relay from the kit in the same
location and orientation as the previously
removed relay. Use the mounting screws
removed in step 2.
4. Reconnect the unit wiring to the new relay
by reconnecting to the same terminal desig-
nations as the original relay.
There is a red jumper wire applied by the
factory between terminal A and T; leave
this jumper in place and connect unit wir-
ing to the piggyback connection on this
wire.
Terminals 1 (com) and 3 (NO) will not be
used in this application.
Since the manufacturer has a policy of continuous product and product data improvement, it
reserves the right to change design and specification without notice.

INSTALLER'S GUIDE
Trane
6200 Troup Highway
Tyler,Tx 75707-9010
OPERATION
When the thermostat calls for indoor blower
operation, an electronic switch in the electron-
ic board pulls in and powers the relay coil.
When the call ends the indoor blower motor
should stop without any time delay.
If speed tap #5 is chosen there will be a time
delay when the thermostat call ends; this is a
function of the blower motor internal circuitry.
NOTE: When power is initially applied dur-
ing installation or after power interruption,
the relay will pull in for a maximum of 0.5
seconds and then drop out.
CHECKOUT
When power is initially applied check to make
sure the relay pulls in for not more that 0.5
seconds and drops out. Then operate the relay
and controlled equipment to make sure that
the relay pulls in when the A terminal is ener-
gized with 24 VAC and that controlled equip-
ment operates as intended. Relay pulls in after
a short on delay of 2 seconds (±0.7). When the
A terminal is deenergized (24 VAC removed),
the indoor air blower should discontinue op-
eration.
4 6
1 3
5
A
2
K2
K1
R1
R2
R8
R12
E4
RV1
C6
C7
C5
C3
C1
E1
E2
E3
E5
A
B
1 (COM)
HIGH VOLTAGE FAN
3 (NO)
6
T
4
Factory installed Red Jumper
Wire with Piggyback Terminal
24 VAC Common BL
from Transformer
WH/J to Heater Plug
Connection
BL Common from
LV Field Connection
Factory installed Red Jumper Wire
GR from LV Field Connection to
Piggyback Terminal of Red Jumper Wire.
Figure 1. Terminal Designations
Figure 2. Original Relay