Wiring Guide
LABEL, WIRING DIAGRAM
AW 151-801
LBL20134
Dwg No.
Model
Title
Material
Blank
MV 2/4/10
MC 4/14/10
4/14/10
Drawn by:
Date:
Checked By:
Approved By:
Date:
DW
Date:
1
2
3 4
5
6 7
8
A
C
D
B
SHEET 1 OF 1
C O N F I D E N T I A L
THIS DRAWING IS THE PROPERTY OF LOCHINVAR CORPORATION
AND CAN NOT BE ALTERED, REPRODUCED OR DISTRIBUTED
WITHOUT WRITTEN PERMISSION
A
C
D
B
1
2
3 4
5
6 7
8
REV
SIZE
B
E
THIRD ANGLE
PROJECTION
NOT TO SCALE
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES
FINISH IN MICROINCHES
DECIMAL
.X
u
.125
.XX
u
.060
.XXX
u
.031
ANGULAR
u
1
v
FINISH:
DEBURR AND BREAK
ALL SHARP EDGES .005 MAX
DO NOT SCALE THIS DRAWING
63
HIGH EFFICIENCY WATER HEATERS AND BOILERS
300 Maddox Simpson Parkway
Lebanon, TN 37090
TEL 615-889-8900 FAX 615-547-1000
www.lochinvar.com
Lochinvar, LLC
®
REV DESCRIPTION ECO DATE APR
A INITIAL RELEASE C05525 4/14/10 DW
B REVISE WIRING FOR BLOCKED DRAIN
AND PRESSURE SWITCHES, WIRE 13
WAS 14 IN ALARM BELL CIRCUIT
C06158 7/28/10 JM
C ADD O-TEMP HEX SW TO INTEGRATED
CONTROL X5-10
C07068 9/22/10 JM
D REVISE PER LOW VOLTAGE BOARD C08938 10/5/11 EC
E VOLTAGE WAS VOL TAGE C09130 10/26/11 ERC
X1-7
ON/OFF
SWITCH
1 2 3 4 5
G
R
RW
R
T
W
BK
Y
BL
BLOWER
-T
HIGH LIMIT SENSOR S1b
OPERATING SENSOR S1a
INLET SENSOR S2
FLUE SENSOR S3a
FLUE SENSOR S3b
INTEGRATED
CONTROL
BK
Y
GAS VALVE
@24VAC
SPARK
ROD
TRANSFORMER
TR2
G
HIGH VOLTAGE SPARK LEADCAUTION
FLAME SENSOR
ALARM
CONTACTS
RUN-TIME
CONTACTS
24 VAC LOUVER
RELAY COIL
LOUVER
PROVING SWITCH
GAS PRESSURE
SWITCH
FLOW
SWITCH
TANK
THERMOSTAT
11
12
13
14
TANK
SENSOR
CASCADE
A
B
SHIELD
SHIELD
0-10V
+
-
BMS
IN
0-10V
+
-
RATE
OUT
MODBUS
OPTION
A
B
SHIELD
SHIELD
LOW
WATER
CUT-OFF
24 VAC
COM
P/BK
Y
W/R
1
2
3
4
5
6
7
8
9
10
15
16
17
18
19
20
21
22
CN7-1
CN7-2
CN7-3
CN7-4
CN5-1
CN5-8
CN5-2
CN5-9
CN5-3
CN5-10
CN5-11
CN5-4
CN5-5
CN5-14
CN5-12
CN5-6
CN5-13
CN5-7
X5-7
X5-16
X5-8
X5-15
X5-9
X5-1
X5-2
X5-10
X5-11
X5-4
X5-12
X5-6
X5-5
X5-13
X5-14
X2-2
X2-1
BK
Notes:
1. All wiring must be installed in accordance with: local, state, provincial and national code requirements per either N.E.C. in USA or C.S.A. in Canada.
2. If any original equipment wire as supplied with the appliance must be replaced, it must be replaced with wire having same wire gauge (AWG) and rated for a
minimum of 105°C. Exceptions: Replacement high vo ltage spark lead and ribbon cables must be purchased from the factory. Use of a non-approved spark lead
or ribbon cables can lead to operational problems which could result in non-repairable damage to the integrated controller or other components.
3. Actual connector block locations may vary from those shown on diagrams. Refer to actual components for proper connector block locations when using
diagrams to troubleshoot unit.
WIRING DIAGRAM
LBL20134 REV E
BOX DEPICTS
OPTIONAL ITEMS
X4-7
X4-14
X4-6
X4-13
X4-5
X4-12
X4-11
X4-4
X4-3
X4-8
X4-10
X4-2
X4-9
X4-1
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
CONNECTION BOARD
CN6
X6
HIGH VOLTAGE
LOW VOLTAGE
120 VAC
X-7
BOX DEPICTS
DUAL SENSOR
SINGLE HOUSING
MODBUS BOARD
MTR-01
CN8-1
CN8-2
CN8-3
X6-3
X6-2
X6-1
X6-4
X9-1
X9-2
X9-3
X9-4
X4-1
X4-2
X4-3
X4-4
X5-1
X5-2
X1-1
X1-2
X1-3
BK
W
G
R
BL
G
-T
-T
-T
-T
SHIELD
GROUNDING
JUMPER
O
GY
G
R/BK
W/BK
GY
PR
1 2
G
3
BELL JUMPER
ALARM BELL
SILENCING SWITCH
JUNCTION
BOX
DHW
PUMP
BUILDING
RECIRC.
PUMP
L
GND
N
120V
SUPPLY
X1-3
X1-4
X1-2
X1-5
X1-6
X1-8
X1-1
BK
L
W
L
N
OR/BK
PR/W
OR
OR
PR
N
PR
25
26
27
28
29
30
23
24
NO
COM
NO
COM
3.5A
AW 801
ONLY
O-TEMP HEX SW
BLOCKED DRAIN SWITCH
O
AIR PRESSURE SWITCH
P
O/BK
AW 286-801 ONLY
7.000
9.250
NOTES
1. MATERIAL: WHITE PAPER WITH LAMINATION AND
PRESSURE SENSITIVE ADHESIVE.
2. PRINTING: BLACK.
E