Bell-gossett HS 115B Model 508 Hygroscopic Air Vent User Manual download pdf

INSTRUCTION MANUAL

HS-115

REVISION B

Hoffman Specialty

Model 508

Hygroscopic Air Vent

• Before using product, read and understand instructions.

• Save these instructions for future reference.

• All work must be performed by qualified personnel trained in the proper application,

installation, and maintenance of systems in accordance with all applicable codes

and ordinances.

• Hot venting can be hazardous. Avoid contact with venting fluid and only manually vent when

system temperature is below 100˚F (38˚C).

• Overtightening and breakage can occur with the use of PTFE pipe joint compounds.

Failure to follow these cautions could cause property damage or personal injury.

WARNING

CAUTION

Temperature ˚F (˚C) 100 (38) 120 (49) 140 (60) 160 (71) 175 (79) 195 (91) 212 (100)

Drying Time - Hours 6 5 2-1/2 1-1/2 1 1/2 1/4

1/8” NPT Male Connection

Maximum Working Pressure:

Steam: 15 psig (1 bar)

Hot Water: 50 psig (3.5 bar)

Maximum Working Temperature: Hot Water 230˚F (110˚C)

Brass Body – Chrome plated

Replacement Cartridge

The cartridge (knob) portion of the valve contains the hygroscopic discs. The

cartridge can be easily replaced without draining the heating unit. The discs can

deteriorate over time when exposed to unfiltered or hard water. Replacement of

the hygroscopic cartridge is recommended at least every two years. Cartridges

may need to be replaced more often if installed in aluminum radiators.

Replacement Cartridge Part Number: 600059

Drying Time

PTFE provides lubricity so that care must be exercised not to overtighten joints.

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Summary of Contents

Page 1 - Hygroscopic Air Vent

INSTRUCTION MANUAL HS-115 REVISION BHoffman Specialty®Model 508Hygroscopic Air Vent• Before using product, read and understand instructions.• Save the

Page 2 - OPERATION

Xylem Inc. 8200 N. Austin Avenue Morton Grove, Illinois 60053 Phone: (847) 966-3700 Fax: (847) 965-8379www.xyleminc.com/brands/bellgossettBell & G

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Bell-gossett HS 115B Model 508 Hygroscopic Air Vent User Manual

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