Intertec Data Systems EFD145DLFR000 Series Installation Operation & Maintenance page 10

Installer's Guide
ELECTRICAL CONNECTIONS TO A COMMUNICATING SYSTEM AIR HANDLER
s s
!
HAZARDOUS VOLTAGE! DISCONNECT ALL ELECTRIC
P O W E R, I N C L U D I N G R E M O T E D I S C O N N E C T S
BEFORE SERVICING. FOLLOW PROPER LOCKOUT/
TAGOUT PROCEDURES TO ENSURE THE POWER
CAN NOT BE INADVERTENTLY ENERGIZED. FAILURE
TO DISCONNECT POWER BEFORE SERVICING
COULD RESULT IN DEATH OR SERIOUS INJURY.
PROCEDURE:
1) Remove electrical power going into the air handler.
2) On the communicating systems air handler, remove
the blower access panel.
3) Remove the communicating control box cover.
4) Locate the red jumper wire which is attached from
EAC to R on the Communicating Systems PCB.
Confirm it is connected. If there is not a jumper wire
installed, then one must be installed in this location in
order for the air cleaner to function properly.
Detach female spade terminal
from white EAC wire and
crimp to green wire
BEFORE
WHITE
GREEN
BK R
O G Y1 Y2
D B W1 W2 W3
Indoor Unit
24V
Terminal
Strip Detail
10
IN CONVENTIONAL 24 V MODE
WARNING
AFTER
WHITE
GREEN
EAC
WHITE
GREEN
BK R O G Y1 Y2
D B W1 W2 W3
Numbers in [brackets] are for 50 Hz international systems.
5) Replace the Communicating control box cover.
6) Locate the white wire coming from the
Communicating System Air Handler PCB labeled
"EAC". The wire will have a male spade terminal
connected to it and a female spade terminal inserted
into the male terminal. Remove the female spade
terminal and crimp it to the green wire on the air
cleaner harness.
7) Connect the green wire from the air cleaner harness
to the white wire on the Communicating Systems Air
Hand nected to the metal air handler chassis.
10) Replace the blower access panel.
11) Reconnect electrical power to the air handler.
Control box panel cover
(Shown removed)
For use with Whole House
BLACK
GRD
Power / Control
Wiring Cable and Plug
GREEN
BLUE
RED
WHITE
BROWN /
Unused
Future Use
24V RED
jumper wire
from EAC to R
EAC
R
PCB Detail
Air Cleaner
Air Cleaner
Plug
Pub. No. 18-HE122D1-1-EN