Modbus Instructions

3Memory Map

SYNC Boiler Memory Map

Input Registers

Address

Description

 

Default

Unit

Min.

Max.

Resolution

 

 

 

 

 

 

 

 

30001

Discrete Inputs 1 - 16

 

0

NA

0

65535

1

 

 

 

 

 

 

 

 

30002

Discrete Inputs 17 - 32

 

0

NA

0

65535

1

 

 

 

 

 

 

 

 

30003

Discrete Inputs 33 - 48

 

0

NA

0

65535

1

 

 

 

 

 

 

 

 

30004

System / Cascade Setpoint

 

0

Degrees Celsius

0

130

0,5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30006

Cascade Total Power

 

0

%

100

800

1

 

 

 

 

 

 

 

 

30007

Cascade Current Power

 

0

%

0

800

1

 

 

 

 

 

 

 

 

30008

Outlet Setpoint 1

 

0

Degrees Celsius

0

130

0,5

 

 

 

 

 

 

 

 

30009

Outlet Temperature 1

 

0

Degrees Celsius

0

130

0,1

 

 

 

 

 

 

 

 

30010

Inlet Temperature 1

 

0

Degrees Celsius

-20

130

0,1

 

 

 

 

 

 

 

 

30011

Flue Temperature 1

 

0

Degrees Celsius

-20

130

0,1

 

 

 

 

 

 

 

 

30012

Firing Rate 1

 

0

%

0

100

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30014

Boiler 1 Status Code

 

0

NA

0

65535

1

 

 

 

 

 

 

 

 

30015

Boiler 1 Blocking Code

 

0

NA

0

65535

1

 

 

 

 

 

 

 

 

30016

Boiler 1 Lockout Code

 

0

NA

0

65535

1

 

 

 

 

 

 

 

 

30017

Outlet Setpoint 2

 

0

Degrees Celsius

0

130

0,5

 

 

 

 

 

 

 

 

30018

Outlet Temperature 2

 

0

Degrees Celsius

0

130

0,1

 

 

 

 

 

 

 

 

30019

Inlet Temperature 2

 

0

Degrees Celsius

-20

130

0,1

 

 

 

 

 

 

 

 

30020

Flue Temperature 2

 

0

Degrees Celsius

-20

130

0,1

 

 

 

 

 

 

 

 

30021

Firing Rate 2

 

0

%

0

100

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30023

Boiler 2 Status Code

 

0

NA

0

65535

1

 

 

 

 

 

 

 

 

30024

Boiler 2 Blocking Code

 

0

NA

0

65535

1

 

 

 

 

 

 

 

 

30025

Boiler 2 Lockout Code

 

0

NA

0

65535

1

 

 

 

 

 

 

 

 

Holding Registers

 

 

 

40001

Configuration

 

0

NA

0

65535

1

 

 

 

 

 

 

 

 

40002

Coils

 

0

NA

0

65535

1

 

 

 

 

 

 

 

 

40003

0-10 Volt Input / Rate Command

/

0

%

0

100

1

Setpoint Command

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40004

Tank Setpoint

 

0

Degrees Celsius

0

87,5

0,5

 

 

 

 

 

 

 

 

40005

Tank Temperature

 

0

Degrees Celsius

-20

130

0,1

 

 

 

 

 

 

 

 

40006

Outdoor Temperature

 

0

Degrees Celsius

-40

60

0,1

 

 

 

 

 

 

 

 

40007

System Supply Temperature

 

0

Degrees Celsius

-20

130

0,1

 

 

 

 

 

 

 

 

Configuration Bits

Address 40001 contains configuration bits sent from the BAS to the boiler. These bits tell the boiler to use its own internal inputs, or inputs from the BAS. When a bit is set to 1, the boiler will ignore the corresponding value contained internally, and expect the BAS to write that value into the Holding Registers. The configuration bits are as follows:

Bit 0 (LSB): Boiler Enable

Bit 4: System Supply Temperature

Bit 1: Tank Thermostat

Bit 5: Outdoor Temperature

Bit 2: Rate Command / 10 - 10V Input / Setpoint Command

Bit 6: Tank Temperature

Bit 3: Tank Setpoint

Bit 7: System Return Temperature

 

Bit 8 - 15: Not Used (Default = 0)

8

Page 8
Image 8
Lochinvar 1.0- 1.3- 1.5 operation manual Configuration Bits, Holding Registers

1.0- 1.3- 1.5 specifications

Lochinvar has long been recognized as a leader in the water heating industry, offering high-efficiency solutions for residential and commercial applications. Among its celebrated products are the Lochinvar 1.0, 1.3, and 1.5 models, which represent a range of advanced technologies and features designed to meet diverse customer needs.

The Lochinvar 1.0 is crafted for residential applications, featuring a robust design that emphasizes energy efficiency and reliability. This model incorporates condensing technology, ensuring that water heating is optimized, resulting in reduced energy costs. With a thermal efficiency rating of up to 95%, the Lochinvar 1.0 significantly lowers fuel consumption while providing ample hot water for households. This model also includes a digital control system that offers precise temperature management, enhancing user convenience.

Moving up the scale, the Lochinvar 1.3 model is tailored for slightly larger residential needs and small commercial spaces. This model not only maintains high efficiency with a similar condensing technology but also boasts an expanded capacity. It is equipped with advanced features like an integrated tankless design, which ensures an uninterrupted supply of hot water without the need for a bulky storage tank. Moreover, the Lochinvar 1.3 offers advanced diagnostics, allowing homeowners and technicians to troubleshoot issues quickly and efficiently.

The Lochinvar 1.5 model ramps up the capability even further, catering to larger commercial applications or extensive residential requirements. It offers exceptional performance with an increased output and efficiency, ensuring that even in high-demand scenarios, users are not left wanting for hot water. With an impressive thermal efficiency rating exceeding 96%, this model is engineered to meet stringent energy regulations while providing reliable performance.

All three models feature durable components including stainless steel heat exchangers, enhancing longevity and resistance to corrosion. They also integrate user-friendly interfaces, making them accessible for easy adjustments and monitoring. Additionally, all Lochinvar models are designed with environmental responsibility in mind, contributing to reduced greenhouse gas emissions.

In summary, Lochinvar's 1.0, 1.3, and 1.5 models showcase a commitment to innovation in water heating technology. They offer a blend of efficiency, capacity, and user-friendly features suitable for various applications, making them a wise choice for those in search of reliable hot water solutions.