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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
Len
g
th
Distance from Unit
to Control
Minimum Recommended
Wire Gau
g
e
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
GY
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
NEUTRALL1 SEC COM
M1
R
ATO OR ATC
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
YB
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.)
T1L1
L2 T2
L3 T3
CUSTOMER'S FUSIBLE
LOCKABLE
ON/OFF
DISCONNECT
BK
Y
108
RBL R
7
31
R
B
DESTRAT
FAN CONTROL
R
ADJUSTABLE
BR
24
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 NOTE 6 on Page 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.)