Wiring color codes, Fan motor wiring, Dsi control – Thomas & Betts LDAP 1200 User Manual
Page 23: See no te 6 on pa ge 22
Form RZ-NA-I-LDAP, P/N 207733 (Rev 2), Page 23
FIGURE 14 – Typical Wiring Diagram for Model LDAP 400 (Reference W. D. 189374, Rev 2)
Terminal Block - Heat Section #1
Terminal Block - Heat Section #2
Terminal Block - Heat Section #3
Factory Wiring
Field Wiring
Total Wire
Length
Distance from Unit
to Control
Minimum Recommended
Wire Gauge
150 ft (46M)
75 ft (23M)
18 Gauge
250 ft (76M)
125 ft (38M)
16 Gauge
350 ft (107M)
175 ft (53M)
14 Gauge
Field Control Wiring
Key
VENTER
SWITCH
SPARK GAP
LED
Y
DSI CONTROL
SW1
IND
BK
NEUTRAL
W
MOTOR
LED
OK
FLAME
G
Y
NEUTRAL
CONTROL
R
R
R
R
BR
FLAME
ELECTRODE
FLAME GROUND
P1-8
P1-3
P1-6
P1-5
P1-7
P1-9
BK
W
P1-2
P1-4
BL
NEUTRAL
L1
SEC
COM
M1
R
A
TO OR
A
TC
3.0
AMP
C
R
W
G
Y
R
Y
PR
P3-4
P3-3
P3-2
TEST
G
4uF CAPACITOR
BR
BR/W
SPARK
TRANSFORMER
P3-5
P3-1
Y
W
FUSE
R
G
W2
R
W1
G
BR
Y
BK
208 OR 230/1/60
GRD
G
N
BR
N
Y
EAC/BLO
NEUTRAL
Y
BK
3
Y
1
BK
20uF CAPACITOR
B
BR/W
BR
MOTOR
FAN
BK
GRD
W
F
RELAY CONTACTS
PERMISSIVE
4
2
5
C
PR
L1
O
PR
B
DESTRAT RELAY
CONTACTS
GRD
SCREW
G
BL
PRESSURE
G
GRD
BL
TERMINAL
STRIP
Y
B
7
B
BL
LINE VOLTAGE
(SEE NOTE 7 on page 22.)
40 VA. CONTROL
TRANSFORMER
Y
BR
BL
8
L1
L3
L1 B
BL
8
Y
L3
7
BR
FAN
DISCONNECT SWITCH
(SEE NOTES on page 22.)
T1
L1
L2
T2
L3
T3
CUSTOMER'S FUSIBLE
LOCKABLE ON/OFF DISCONNECT
BK
Y
10
8
R
BL
R
7
3
1
R
B
DESTRAT
FAN CONTROL
R
ADJUSTABLE
BR
2
4
R
LIMIT
CONTROL
MANUAL
RESET
HIGH LIMIT
O
STG
HIGH
HI
GAS VALVE
HONEYWELL
TWO STAGE
LOW
C
LO
STG
BR
BL
O
G
REMOTE MOUNTED
BR
SWITCH SETTINGS
BK
See
NO
TE
6
on
Pa
ge
22.
R
REMOTE MOUNTED
COM
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
3
15
CR
1
RELAY COIL
DESTRAT
22
35
FAN PERMISSIVE
22 - 23
RELAY COIL
28
CR
C
Y1
Y2
W
33
21
REMOTE
DESTRAT
RELAY COIL
BR
16
CR
11
7
W
REMOTE DESTRAT
RELAY CONTACTS
PR
2
4
B
BL
PR
LOW
TWO STAGE
GAS VALVE
HIGH
STG
HI
MV
C
STG
HONEYWELL
ALT.
BL
BR
O
GAS VALVE
BL
BR
BL
SINGLE STAGE
GAS VALVE
HONEYWELL
ALT.
SEE CHART AT TOP OF PAGE FOR
Wiring
Color
Codes
Black - BK
Brown - BR
Red - R
Orange - O
Yellow - Y
Green - G
Blue - BL
Purple - PR
White - W
Fan Motor Wiring
White = Neutral
Black = High (Heat Speed)
Blue = Medium (Destratification Speed, Factory Wired)
Red = Low (Optional Destratification Speed, Field Wired)
TIME
SW1
SW2
90 sec
OFF
ON
120 sec
OFF
OFF
160 sec
ON
OFF
45 sec
ON
ON
Switch Settng Chart for Fan
OFF Delay (See SW1 on W.D.)