1
LABEL, LADDER DIAGRAM WH LBL20170 Dwg No. Model Title Material Blank MV 11/5/10 JH 11/5/10 11/5/10 Drawn by: Date: Checked By: Approved By: Date: BP 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 Lochinvar Corporation 300 Maddox Simpson Parkway Lebanon, TN 37090 TEL 615-889-8900 FAX 615-547-1000 www.lochinvar.com HIGH EFFICIENCY WATER HEATERS AND BOILERS ® REV SIZE B C 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 1v FINISH: DEBURR AND BREAK ALL SHARP EDGES .005 MAX DO NOT SCALE THIS DRAWING 63 REV DESCRIPTION ECO DATE APR C REVISE PER LOW VOLTAGE BOARD, ADD ON/OFF SWITCH, REMOVE BLOCKED DRAIN C08914 10/17/11 ERC NOTES 1. MATERIAL: WHITE PAPER WITH LAMINATION AND PRESSURE SENSITIVE ADHESIVE, 9 1/4" H X 7" W. 2. PRINTING: BLACK. BOX DEPICTS OPTIONAL ITEMS LADDER DIAGRAM LBL20170 REV C 120 VAC 24 VAC 120VAC TERMINAL STRIP 120V SUPPLY "L" ON / OFF SWITCH X1-6 F2 NEUTRAL INTEGRATED CONTROL X2-1 GAS VALVE GAS VALVE RELAY X5-7 X5-16 X5-8 X5-15 1 2 4 5 3.15A F1 5A TR2 X1-7 FLAME ROD SPARK ROD INTEGRATED CONTROL GROUND JUNCTION BOX CAUTION HIGH VOLTAGE SPARK LEAD BLOWER CONNECTION BOARD INLET SENSOR OPERATING SENSOR FLUE SENSOR INTEGRATED CONTROL RUN-TIME CONTACTS RIBBON CABLE X7 SYSTEM SENSOR TANK SENSOR OUTDOOR SENSOR 0-10V + - CASCADE A B SHIELD SHIELD 13 6 2 1 SILENCING SWITCH ALARM BELL S6 S4 S5 BMS CN6 X6 CN6 X6 CN6 X6 CN6 X6 CN6 X6 CN5-2 X4-6 CN5-9 X4-13 CN5-1 X4-7 CN5-8 X4-14 CN6 X6 CN6 X6 CN6 X6 HIGH LIMIT SENSOR FLUE SENSOR X5-4 X5-12 X5-5 X5-13 X5-14 X5-6 0-10V + - SYS PUMP IN 0-10V + - BLR PUMP OUT 0-10V + - RATE OUT IN MODBUS A B SHIELD SHIELD CN6 X6 CN6 X6 CN6 X6 CN6 X6 CN6 X6 CN8-1 X6-1 CN8-2 X6-2 CN8-3 X6-3 X4-1 X9-2 X4-2 X9-1 X4-3 X9-3 PC INTERFACE S2 S1a S1b S3a S3b 21 22 26 27 23 24 30 31 32 33 35 36 37 38 39 40 41 42 43 44 3 4 1 2 ALARM CONTACTS M O D B U S 29 34 CN6 X6 X2-2 NOTES: 1. Where possible, switches are shown without utilities (gas, water or electricity) connected to the unit. As such, actual switch states may vary from those shown on diagrams depending upon whether utilities are connected or a fault condition is present. 2. See wiring diagram for additional notes. X1-1 1 2 BLOWER SYSTEM PUMP RELAY DHW PUMP RELAY BOILER PUMP RELAY 24V DC SUPPLY F3 .8A X5-1 X5-9 3 CN5-5 X4-3 X1-4 X1-3 X1-2 BOILER PUMP "L" DHW PUMP "L" SYSTEM PUMP "L" BOILER PUMP DHW PUMP SYSTEM PUMP BOILER PUMP "N" DHW PUMP "N" SYSTEM PUMP "N" TERMINAL STRIP TERMINAL STRIP GND GND GND TERMINAL STRIP 120V SUPPLY "N" LOW VOLTAGE 120 VAC HIGH VOLTAGE X5-2 X5-11 AIR PRESSURE SWITCH 8 19 17 15 13 10 CN5-6 CN5-12 CN5-11 X4-2 X4-10 X4-11 LOUVER RELAY COIL 24VAC LOUVER PROVING SWITCH CN5-4 X4-4 9 5 6 7 CN5-3 X4-5 CN5-13 X4-9 CN5-7 X4-1 CN5-10 X4-12 CN5-14 X4-8 CONNECTION BOARD CN7-3 CN7-2 CN7-4 CN7-1 HEAT/LOOP DEMAND HEAT/LOOP DEMAND 3 2 1 HEAT/LOOP DEMAND TANK THERMOSTAT HIGH GAS PRESSURE SWITCH LOW GAS PRESSURE SWITCH 20 18 16 14 9 FLOW SWITCH 11 12 24 VAC LWCO 10 13 15 17 19 13.500 7.000

LABEL, LADDER DIAGRAM - Lochinvar :: High efficiency …lochinvar.com/_linefiles/WH LADDER DIAGRAM.pdf · LABEL, LADDER DIAGRAM WH Dwg No. LBL20170 Model Title ... BOX DEPICTS OPTIONAL

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Page 1: LABEL, LADDER DIAGRAM - Lochinvar :: High efficiency …lochinvar.com/_linefiles/WH LADDER DIAGRAM.pdf · LABEL, LADDER DIAGRAM WH Dwg No. LBL20170 Model Title ... BOX DEPICTS OPTIONAL

LABEL, LADDER DIAGRAM

WH

LBL20170Dwg No.

Model

Title

Material

Blank

MV 11/5/10

JH 11/5/10

11/5/10

Drawn by: Date:

Checked By:

Approved By:

Date:

BPDate:

1 2 3 4 5 6 7 8

A

C

D

B

SHEET 1 OF 1C O N F I D E N T I A L

THIS DRAWING IS THE PROPERTY OF LOCHINVAR CORPORATIONAND CAN NOT BE ALTERED, REPRODUCED OR DISTRIBUTED

WITHOUT WRITTEN PERMISSION

A

C

D

B

1 2 3 4 5 6 7 8

Lochinvar Corporation300 Maddox Simpson Parkway

Lebanon, TN 37090TEL 615-889-8900 FAX 615-547-1000

www.lochinvar.comHIGH EFFICIENCY WATER HEATERS AND BOILERS

®

REV

SIZE

BC

THIRD ANGLE

PROJECTION NOT TO SCALE

UNLESS OTHERWISE SPECIFIEDDIMENSIONS ARE IN INCHES

FINISH IN MICROINCHES

DECIMAL.X u .125

.XX u .060.XXX u .031

ANGULARu 1v

FINISH:

DEBURR AND BREAKALL SHARP EDGES .005 MAX

DO NOT SCALE THIS DRAWING

63

REV DESCRIPTION ECO DATE APR

C REVISE PER LOW VOLTAGE BOARD,ADD ON/OFF SWITCH, REMOVEBLOCKED DRAIN

C08914 10/17/11 ERCNOTES 1. MATERIAL: WHITE PAPER WITH LAMINATION AND

PRESSURE SENSITIVE ADHESIVE, 9 1/4" H X 7" W. 2. PRINTING: BLACK.

BO

X D

EP

ICT

SO

PT

ION

AL

ITE

MS

LAD

DE

R D

IAG

RA

MLB

L201

70 R

EV

C

120

VA

C

24 V

AC

120V

AC

TE

RM

INA

L S

TR

IP12

0V S

UP

PLY

"L"

ON

/ O

FF

SW

ITC

HX

1-6

F2

NE

UT

RA

L

INT

EG

RA

TE

DC

ON

TR

OL

X2-

1

GA

S V

ALV

E

GA

S V

ALV

ER

ELA

Y

X5-

7

X5-

16

X5-

8

X5-

15

1 2 4 5

3.15

A

F1

5A

TR

2

X1-

7

FLA

ME

RO

DS

PA

RK

RO

D

INT

EG

RA

TE

D C

ON

TR

OL

GR

OU

ND

JUN

CT

ION

BO

X

CA

UT

ION

HIG

H V

OLT

AG

E S

PA

RK

LE

AD

BLO

WE

RC

ON

NE

CT

ION

BO

AR

DINLE

TS

EN

SO

R

OP

ER

AT

ING

SE

NS

OR

FLU

ES

EN

SO

R

INT

EG

RA

TE

DC

ON

TR

OL

RU

N-T

IME

CO

NTA

CTS

RIB

BO

N C

AB

LE

X7

SY

ST

EM

SE

NS

OR

TA

NK

SE

NS

OR

OU

TD

OO

RS

EN

SO

R

0-10

V+ -

CA

SC

AD

EA B

SH

IELD

SH

IELD

13621

SILENCINGSWITCH

ALARMBELL

S6

S4S5

BM

S

CN

6X

6

CN

6X

6

CN

6X

6

CN

6X

6

CN

6X

6

CN

5-2

X4-

6

CN

5-9

X4-

13

CN

5-1

X4-

7

CN

5-8

X4-

14

CN

6X

6

CN

6X

6

CN

6X

6

HIG

H L

IMIT

SE

NS

OR

FLU

ES

EN

SO

R

X5-

4

X5-

12

X5-

5

X5-

13

X5-

14

X5-

6

0-10

V+ -

SY

S P

UM

P IN

0-10

V+ -

BLR

PU

MP

OU

T

0-10

V+ -

RA

TE

OU

TIN

MO

DB

US

A B

SH

IELD

SH

IELD

CN

6X

6

CN

6X

6

CN

6X

6

CN

6X

6

CN

6X

6

CN

8-1

X6-

1

CN

8-2

X6-

2

CN

8-3

X6-

3

X4-

1X

9-2

X4-

2X

9-1

X4-

3X

9-3

PC

INTE

RFA

CE

S2

S1a S1b S3a

S3b

21 22 26 2723 24 30 31 32 33 35 36 37 38 39 40 41 42 43 443 41 2A

LAR

MC

ON

TAC

TS

M O D B U S

29 34

CN

6X

6

X2-

2

NO

TE

S:

1. W

her

e p

ossi

ble

, sw

itch

es a

re s

ho

wn

with

out

uti

litie

s (g

as, w

ater

or

e

lect

rici

ty)

conn

ecte

d to

the

un

it.

As

such

, act

ual

sw

itch

sta

tes

may

v

ary

fro

m t

hos

e sh

ow

n o

n d

iag

ram

s d

epen

din

g u

po

n w

het

her

uti

litie

s

are

con

nec

ted

or

a fa

ult

con

dit

ion

is p

rese

nt.

2. S

ee w

irin

g d

iag

ram

fo

r ad

dit

ion

al n

ote

s.

X1-

1

12

BLO

WE

R

SY

ST

EM

PU

MP

RE

LAY

DH

W P

UM

PR

ELA

Y

BO

ILE

R P

UM

PR

ELA

Y

24V

DC

SU

PP

LY

F3

.8A

X5-

1X

5-9

3

CN

5-5

X4-

3

X1-

4

X1-

3

X1-

2

BO

ILE

RP

UM

P "

L"

DH

WP

UM

P "

L"

SY

ST

EM

PU

MP

"L

"

BO

ILE

RP

UM

P

DH

WP

UM

P

SY

ST

EM

PU

MP

BO

ILE

RP

UM

P "

N"

DH

WP

UM

P "

N"

SY

ST

EM

PU

MP

"N

"

TE

RM

INA

LS

TR

IPT

ER

MIN

AL

ST

RIP

GN

D

GN

D

GN

D

TE

RM

INA

L S

TR

IP12

0V S

UP

PLY

"N

" LOW

VO

LTA

GE

120

VA

CH

IGH

VO

LTA

GE

X5-

2

X5-

11A

IR P

RE

SS

UR

ES

WIT

CH

8

19 17 15 13 10

CN

5-6

CN

5-12

CN

5-11

X4-

2

X4-

10

X4-

11

LOU

VE

RR

ELA

Y C

OIL

24V

AC

LOU

VE

RP

RO

VIN

G S

WIT

CH

CN

5-4

X4-

4

9

5 6 7

CN

5-3

X4-

5

CN

5-13

X4-

9

CN

5-7

X4-

1

CN

5-10

X4-

12

CN

5-14

X4-

8

CO

NN

EC

TIO

N B

OA

RD

CN

7-3

CN

7-2

CN

7-4

CN

7-1

HE

AT

/LO

OP

DE

MA

ND

HE

AT

/LO

OP

DE

MA

ND

321H

EA

T/L

OO

PD

EM

AN

D

TA

NK

TH

ER

MO

ST

AT

HIG

H G

AS

PR

ES

SU

RE

SW

ITC

H

LOW

GA

SP

RE

SS

UR

ES

WIT

CH

20 18 16 14 9

FLO

W

SW

ITC

H11

12

24 V

AC

LWC

O

1013151719

13.500

7.000