Laarsen Associates LG, LD operation manual Model LD Wiring Diagram

Page 9

Model LG & LD Pool and Spa Heater

Page 7

 

 

 

 

MODEL LD WIRING DIAGRAM

 

 

 

 

 

 

 

 

 

N O TE :

 

 

 

 

 

 

 

HSI IG NITIO N W IR E

 

IF O RIG INA L W IR E SU PP LIED W ITH HE ATE R

 

O F F

 

 

FACTO RY W IRED - 120 V/240 V

M U ST B E R EP LAC ED , A PP LIA NCE W IR IN G

S PA

P O O L

 

 

FIELD W IRED - 120V /240V

M ATER IA L RATED AT 105 OC SH ALL B E USE D .

 

 

FACTO RY W IRED - 24 V

W IR ING S HO W N AS

 

SHA LL US E

 

R E M O T E

 

 

 

 

 

 

 

 

 

A PP LIAN CE W IR ING M ATER IA L RATED AT 200 OC .

 

C O N N E C TOR

 

FIR E M A N

 

 

 

 

 

 

 

 

 

B K

 

 

 

 

TRA NSFO R M ER

 

 

 

 

 

 

 

 

S W ITC H

F U S IB L E

 

 

 

 

 

 

 

L IM IT W

C O N N E C TIO N

E L E C .

120-240 V

 

 

 

 

 

W

L IM IT W

W

L IN K

F U S E

R

B K

 

 

 

B K 240V

 

 

 

 

 

 

 

G /Y

W /R

 

 

 

60 H z

W ATE R

P R E S S U R E

 

 

 

 

 

W /B K

 

 

 

 

 

 

 

 

 

 

 

SIN G LE

 

 

 

 

 

 

Y

 

 

 

T E M P

S W ITC H

 

 

 

 

 

 

R

 

 

 

R PH A SE

 

 

 

 

 

 

 

 

 

 

S E N S O R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W IR E TO IG N /1 20

 

G

 

ATTAC H

 

 

 

 

 

 

 

 

 

 

 

 

Y /B K

 

 

 

W

 

 

F O R 12 0 VO LT S

 

 

 

GR OU N D

 

 

 

 

IG N /1 2 0

W IR E TO IG N /2 40

 

 

 

 

 

 

 

 

 

 

 

 

W IR E

 

 

 

 

 

 

IG N /2 4 0

 

 

 

 

 

 

 

 

W

F O R 24 0 VO LT S

B K

 

 

H ER E

 

H O N E Y W E LL

 

 

(L I)

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W

(L 2 )

 

 

 

 

 

 

 

 

 

 

IG NITIO N CO NTRO L

 

 

 

 

G AS VALVE

 

 

IG N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F S

 

(FENWAL)

 

 

 

 

 

M V 1

 

B R

 

 

T H

 

0533

 

 

A LT ER N ATE 1 2 0 V W IR IN G

 

 

 

 

VA LV E

TR ANSFO RME R

 

M V 2

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

G N D

120 -240V / 24 V B K

 

 

B K

 

 

 

 

 

 

 

 

W /R

 

 

 

 

 

 

 

W

F L A M E S E N S E R O D

 

 

 

 

 

 

 

 

 

 

W /B K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

Y

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G

ATTA C H

a) Connection Diagram

 

 

IG N IT E R

 

 

(L1 )

B K

R

 

G R OU N D

 

 

 

 

 

 

 

W IR E

 

 

 

 

 

(L2 )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H ER E

 

L 1

 

 

 

 

 

 

240V CONNECTION

L 2

 

 

 

 

 

 

 

 

 

 

 

 

SHOWN

 

 

 

 

 

 

 

 

 

 

 

 

R

 

Y

BK

-

B la ck

 

 

 

 

 

 

 

 

TR AN SFOR ME R

 

 

PR E SS U R E

 

135 O F

FIR EM A N

FU SIB LE

 

 

W

-

W h ite

 

150 O F

ELEC TR IC AL

24 V

 

BR

-

B row n

 

SW ITC H

 

H I-LIM IT

H I-LIM IT

SW ITC H

LIN K

FU SE

 

 

Y

-

Yello w

 

 

 

 

 

R

-

R ed

 

 

 

SW ITC H

SW ITC H

C O N N EC TO R

1-25 A M P

 

 

 

 

 

 

 

O

-

O ran ge

 

 

 

 

 

 

 

 

 

 

 

Y/BK -

Yellow & Black

 

 

 

 

 

 

 

 

 

 

 

W/BK -

W hite & Black

 

 

 

SPA S ET PO IN T

PO OL SET POIN T

 

 

 

 

W/R

-

W hite & Red

 

 

 

 

 

 

 

 

 

 

 

G/Y

-

G reen & Yellow

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

B K

 

 

C IR C U IT

 

 

 

 

 

 

 

 

 

B K /Y

 

 

SE N

 

SE N

 

 

 

 

 

 

 

GN D

W

W ATE R TEM P ER ATU R E

W

 

 

 

 

SE N SO R

 

T H

FS

VA LV E

 

L2

G N D

IG NL1 IG N 1 20 W or

IG N 2 40

 

 

 

W

IG N IT IO N

 

 

 

C O N T RO L

 

H /W G A S VA LV E

 

B R

M V 1

M V 2

 

IG N IT O R

 

 

Y

W

 

 

 

FLAM E SEN SO R

b) Schem atic Diagram

 

 

 

H0236300 -

Figure 6. LD Connection/Schematic Wiring Diagram.

Page 8 Page 10
Image 9
Page 8 Page 10
Contents Outdoor Use Only Installation Laars Lite Pool and Spa HeaterTable of Contents 1A. Introduction Section2B. Field Assembly 1C. Warranty1B. Description 1D. Technical Assistance2C. Site Location 2C-1. Installation Information2C-3. Flooring Typical Installation 2C-2. Outdoor Installation2C-4. Indoor and Outdoor Shelter Installations United States2D. Combustion and Ventilation Air Supply 2E. Gas Supply and Piping2E-1. General Instructions 2F. Electrical Wiring 2E-2. Special Precautions for Propane Gas2F-1. General Information LD Only Model LD Wiring Diagram Onnection Iagram 2F-2. Auxiliary Time Clock Wiring2G-1. Flange Installation 2G. Water Flow System2F-3. Remote Operation Model LD Only 2G-2. Reversible Water Connections Piping installationFlue collector hold-down brackets 2G-4. Chlorinators, Ozone Generators Sanitizing Chemicals 2G-3. Check Valve Installation2G-6. Adjusting the Pressure Switch 2G-4a. Water Chemistry2G-5. Pressure Relief Valve 2G-7. Automatic Flow Control Valve 2G-8. Temperature RiseTypical installation 2G-9. Adjusting the Manual Bypass Valve3C. Setting the Temperature Control 3B. Lighting and Shutdown Procedures3A. General Information 3B-1. Model LD see 3B-2. Model LG seeDo not try to light any appliance 3B-1. Model LD Direct IgnitionWhat to do if YOU Smell GAS 3B-2. Model LG Standing Pilot3D-1. Spring and Fall Operation 3D. Seasonal Care3D-2. Winterizing 3D-3. Spring Start-up3F. Spa/Hot Tub Safety Rules 3E. Water Chemistry3G. Swimming Pool Energy Saving Tips 3H. Periodic Inspection 4B. Parts List4A. General Information 3H-1. Owner InspectionOrder Heat Exchanger See Next page for Detail Shown Model LG & LD Pool and Spa Heater Laars Lite Limited Warranty

LG, LD specifications

Laarsen Associates is a reputable engineering and consulting firm known for its innovative solutions in the field of energy and environmental management. Among its notable offerings are the LG and LD series of products, designed to optimize energy efficiency and reduce environmental impact in various applications.

The LG series focuses on providing high-performance tools for efficient energy management in commercial settings. These tools are engineered to integrate seamlessly into existing infrastructures, allowing businesses to monitor, control, and optimize their energy consumption effectively. One of the main features of the LG series is its user-friendly interface, which provides real-time data on energy usage, enabling users to make informed decisions quickly. Furthermore, the enhanced connectivity options facilitate remote access, allowing users to manage their systems from anywhere, significantly improving flexibility and response times.

On the other hand, the LD series is tailored for industrial applications, emphasizing durability and robust performance. The LD products are designed to withstand the harshest environments while maintaining consistent efficiency. Their advanced monitoring systems provide detailed insights into energy consumption patterns, allowing for predictive maintenance and reduced operational costs. Key characteristics of the LD series include high reliability, modular design, and adaptive technologies that can be customized to suit specific industrial requirements.

Both series employ cutting-edge technologies to achieve optimal performance. Smart sensors collect real-time data, which is processed using advanced algorithms to deliver actionable insights. These insights can lead to optimized processes, reduced energy wastage, and enhanced sustainability measures. Moreover, the integration of IoT capabilities allows for smarter energy systems that adapt in real time to changing conditions.

Sustainability is at the core of Laarsen Associates’ offerings. Both the LG and LD series are designed with a commitment to reducing carbon footprints and complying with global standards for environmental protection. Their features not only promote energy efficiency but also support clients in achieving their sustainability goals.

In conclusion, Laarsen Associates’ LG and LD series represent the forefront of energy management and environmental solutions. With their combination of user-centric design, advanced technology, and commitment to sustainability, these products pave the way for businesses and industries to navigate modern energy challenges effectively.
Top Page Image Contents