Manual

ManualsBrandsBell & Gossett ManualsAir equipmentHS 217D Dura-Stat Thermostatic Module

INSTRUCTION MANUAL

HS-217

REVISION d

Hoffman Specialty

Dura-Stat

Thermostatic Module

For Spirax-Sarco Trap Model H; 1/2” (15mm) NPT

Model TB-25; 1/2” (15mm) NPT

Model TH-25; 1/2” (15mm) NPT

Model TS-25; 1/2” (15mm) NPT

• 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 steam systems in accordance with all applicable codes

and ordinances.

• To prevent serious burns, wear heat resistant gloves when opening and closing

steam valves, or handling hot equipment.

• To prevent serious burns, the internal pressure of the trap must be 0 psi (0 bar) before

servicing.

Failure to follow this caution will cause personal injury.

NIN

TIO

CAUTION

INSTALLATION –

For Spirax-Sarco Trap Model H; 1/2” (15mm) NPT and Model TH; 1/2” (15mm) NPT

1. Remove the trap cover (A) from the body (B).

2a. Unscrew the thermostatic element (C) from

the cover (A).

b. Discard the old thermostatic element (C)

and washer (D).

Summary of content (4 pages)

PAGE 1
INSTRUCTION MANUAL HS-217 REVISION d Hoffman Specialty® Dura-Stat® Thermostatic Module For Spirax-Sarco Trap Model H; 1/2” (15mm) NPT Model TB-25; 1/2” (15mm) NPT Model TH-25; 1/2” (15mm) NPT Model TS-25; 1/2” (15mm) NPT ! CAUTION ION CAUT ING WARN • Before using product, read and understand instructions. • Save these instructions for future reference.
PAGE 2
E 3a. Using a 5/8” (16mm) socket wrench, remove and discard the seat (E) from the trap body (B). B b. Discard the old seat (E). 4. Using a scraper, remove any scale or debris inside the trap body (B) especially around the seat area (F). Do not scratch gasket surface area. B F G 5. Screw the new Dura-Stat thermostatic module (G) into the threaded port (H) inside the trap body. ® H 6. Using a 3/4” (19mm) socket wrench (J), tighten the Dura-Stat module approximately 12 lbf•ft (16 N•m). 7a.
PAGE 3
For Spirax-Sarco Trap Model TB-25; 1/2” (15mm) NPT and Model TS-25; 1/2” (15mm) NPT 1. Remove the trap cover (A) from the body (B). A B 2a. Unscrew the coil spring (C) from the trap cover (A). A b. Discard the coil spring (C). C 3a. Remove the thermostatic element (D) from the trap body (B). D B b. Discard the old thermostatic element (D). 4a. Using a 5/8” (16mm) socket wrench, remove the seat (E) and gasket (F) from the trap body (B). E F b. Discard the old seat (E) and gasket (F). B 5.
PAGE 4
6. Screw the new Dura-Stat® thermostatic module (H) into the threaded port (J) inside the trap body. H J 7. Using a 3/4” (19mm) socket wrench (K) tighten the Dura-Stat module to approximately 12 lbf•ft (16 N•m). K 8. Place the new copper spacer (L) on the trap body (B). L B 9a. Reinstall and tighten the trap cover (A) on the body (B). b. Slowly open the steam supply valve. MAINTENANCE SCHEDULE: • Replace Dura-Stat thermostatic module every 4 years. Xylem Inc. 8200 N.