Power Wiring; Connect Transformer To Control Board - Chamberlain LA400 Installation And Operation Manual

POWER WIRING

CAUTION
To AVOID damaging plug-in transformer, it MUST be enclosed
in a suitable weatherproof enclosure and provided with proper
weatherproof fixtures.

Connect Transformer to Control Board

NOTE: All power wiring should be on a dedicated circuit and well protected.
Calculated using NEC guidelines. Local codes and conditions must be reviewed for suitability of wire installation.
The transformer can be plugged into a receptacle external to the control box. Run low voltage wire between the
transformer and control box. This will create more space in the control box for accessories.
Connect 120Vac directly to the box and plug the transformer to the receptacle
inside the control box.
Circuit Panel
Dedicated Outlet
Transformer
OR
CAUTION
To AVOID damaging gas, power or other underground utility
lines, contact underground utility locating companies BEFORE
digging.
Control Box
Control Box
P2 R223
J19 CLOSE
K6 14GP 89 EDGE
ALARM 14LG 89
14SK 89 R2Ø7
NO
R227 Z2Ø
C
K5
MAGLOCK OPEN EDGE/
PHOTO
NO L1
R224
C
U4 Z22
NC S8 OFF ON SAVE R92
R2 OFF ON MAGLOCK
LEARN SINGLE DUAL MODE
Z1 R1 XMITTER NO NC EDGE OPEN
10A 32V NO NC PHOTO PHOTO
GATE 1 S1
F3 R91
BRN
R94
GRN D1Ø K2
WHT
DIAGNOSTIC PHOTO CLOSE
YEL R93
BLU GATE 1
RED
K1 Q9 SET SET LEARN
Z12 OPEN CLOSE LIMITS 24V
LIMIT LIMIT
SWITCHED
ACCESSORY R9Ø GATE 2 TIMER ACCESSORY POWER
POWER RUNNING
CONTROL
24V INPUTS
R1Ø1
BRN R1ØØ
F4
GRN
10A 32V ACCESSORY
WHT OVLD
YEL K4
BLU F5
D21
R35
RED K3 D9
GATE 2 D8 C12 D27
Z3 F7
Z4 C13
Q22 D22 C4
U3
C11
D15 CHGR
R4 C2 R196 OVLD
F6
24 VAC/ F2
SOLAR
INPUT
J4 MOV2 MOV1 R9 D4
C64 D1 FUSE
JMPR2 JMPR1 OPEN
U2 D2
DB1
21
Operator
Transformer
Z9
Z8