Service Manual

1 Service

Boiler piping

This piping reference is included to specify the Boiler Piping specific to the Crest boiler. This piping scheme is important for proper operation of the SMART TOUCH control. See the Crest Installation and Operation Manual for more detailed piping diagrams.

Single Boiler - Recommended - Primary / Secondary Piping with a Hot Water Generator

FROM SYSTEM

HOT WATER

GENERATOR

WATER

GENERATOR

CIRCULATOR

BOILER PUMP

SYSTEM RETURN

 

 

 

SENSOR

 

 

 

12"

 

 

 

MAX

BALL VALVE

 

 

RELIEF

 

 

(TYPICAL)

 

 

VALVE

AIR SEPERATOR

 

 

 

 

 

 

DRAIN PORT

 

 

(TYPICAL)

 

 

 

SYSTEM SUPPLY

 

 

SENSOR

 

 

 

SYSTEM

 

 

 

CIRCULATOR

 

 

 

TO SYSTEM

BOILER

 

 

 

DRAIN

PRESSURE

 

MAKE UP

 

REDUCING VALVE

BACK FLOW

 

 

WATER

 

 

PREVENTER

EXPANSION

PRESSURE

 

 

 

TANK

GAUGE

 

 

Y-STRAINER

 

 

 

(RECOMMENDED)

 

 

 

FLOW CHECK

 

 

 

VALVE (TYPICAL)

 

 

 

Single Boiler - Alternate - Full Flow System Piping

RELIEF

VALVE

BALL VALVE (TYPICAL)

FROM SYSTEM

BOILER DRAIN

Y-STRAINER (RECOMMENDED)

AIR SEPERATOR

DRAIN PORT (TYPICAL)

SYSTEM

CIRCULATOR

EXPANSION

 

TANK

 

PRESSURE

PRESSURE

GAUGE

REDUCING VALVE

 

TO SYSTEM

BACK FLOW MAKE UP

PREVENTER WATER

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Lochinvar 3.5, 1.5, 2.5 service manual Service, Boiler piping

3, 2, 3.5, 2.5, 1.5 specifications

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The Lochinvar 1.5, 1.3, and 1.0 models feature advanced control systems that provide precise temperature management and easy operation. The intuitive digital display allows users to monitor performance metrics, temperature settings, and energy consumption with ease. Additionally, these units are equipped with intelligent modulating gas valves that optimize fuel usage based on demand, ensuring efficient operation across various load conditions.

Safety is a priority in the design of Lochinvar's water heaters. The models come with built-in safety features, including flame failure detection, overheat protection, and venting safeguards. These systems work together to ensure the safe operation of the units, giving users peace of mind.

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