Install Instructions

• Before using this product read and understand instructions.

• Save these instructions for future reference.

• Turn off steam or water before servicing.

• To prevent serious burns, wear heat resistant gloves when handling hot equipment.

Failure to follow this caution could result in property damage or personal injury.

CAUTION

Model 62

Vacuum Breaker

OPERATION

As system pressure falls sufficiently below atmospheric pressure to

compress the spring, the vacuum breaker will open, allowing air to

enter the system. The vacuum breaker is factory set to open at

approximately 2 inches Hg vacuum. It is adjustable from 1/4” to 20”

(8 - 508 mm) Hg vacuum.

Hoffman Specialty

Installation & Maintenance

Instructions

HS-902(C)

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Hoffman Specialty Installation & Maintenance Instructions HS-902(C) Model 62 Vacuum Breaker ! CAUTION • Before using this product read and understand instructions. • Save these instructions for future reference. • Turn off steam or water before servicing. • To prevent serious burns, wear heat resistant gloves when handling hot equipment. Failure to follow this caution could result in property damage or personal injury.
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INSTALLATION – STEP 1 - Determine Where to Install the Vacuum Breaker TYPICAL PIPING DIAGRAMS The Model 62 vacuum breaker can be installed vertically or horizontally. However, installing the vacuum breaker horizontally results in fouling of the seating surface, which prevents tight sealing. The life of the o-ring may be increased by installing the vacuum breaker in a standpipe where temperatures are lower.
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MAINTENANCE PROCEDURE: SCHEDULE: • Initially and every 6 months thereafter. • Replace vacuum breaker every 15 years. More frequent replacement of the vacuum breaker is required when used on water systems in locales where significant water treatment is required, or where more frequent cleaning is necessary. ! CAUTION • Turn off steam or water before servicing vacuum breaker. • To prevent serious burns, wear heat resistant gloves when handling hot equipment.
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ITT 8200 N. Austin Ave. Morton Grove, IL 60053 tel: 847-966-3700 fax: 847-966-9052 www.hoffmanspecialty.com ©2006 ITT Corporation Printed in U.S.A.