2-53
johNSoN coNtroLS
ForM 102.20-N1 (1109)
2
T
T
STEAM MAIN
DRIP TRAP
STEAM
MAIN
1/4" (6.4)
PETCOCK CRACKED
OPEN FOR
CONTINUOUS AIR
CHECK
VALVE
INVERTED
BUCKET
TRAP
STRAINER
12" MIN.
VIFB
COIL
RETURN MAIN
VALVE 1/2" (12.7)-15°
VACUUM BREAKER CHECK
RETURN MAIN
COIL
VIFB
8" (203.2) MINIMUM
8" (203.2)
STRAINER
THERMOSTATIC TRAP
COMBINATION FLOAT AND
VALVE
CHECK
MAIN
STEAM
DRIP TRAP
STEAM MAIN
AIR VENT TO ATMOSPHERE ON OPEN
GRAVITY RETURN SYSTEM ONLY.
MINIMUM 1" (25.4) PIPE
STRAINER
CONDENSATE
FLOW
NON-VENTING TRAP
1/2" (12.7)
THERMOSTATIC TRAP
FLOW
CONDENSATE
NON-VENTING TRAP
AUTOMATIC
3/4" (19.1)
FOR AIR REMOVAL
AIR VENT
FLOW
AIR
FLOW
AIR
8" (203.2) MINIMUM
8" (203.2)
(304.8)
VENTING
VALVE 1/2" (12.7)-15°
VACUUM BREAKER CHECK
NOTE : DIMENSIONS ARE IN INCHES.
DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.
FLEXIBLE CONNECTOR INSTALLED
PARALLEL TO COIL HEADER AND
AS CLOSE AS POSSIBLE TO COIL
CONDENSATE CONNECTION.
AS CLOSE AS POSSIBLE TO COIL
CONDENSATE CONNECTION.
PARALLEL TO COIL HEADER AND
FLEXIBLE CONNECTOR INSTALLED
STRAINER
T
T
STEAM PRESSURE ABOVE 15 PSIG OR 103.4 KPA
STEAM PRESSURE BELOW 15 PSIG OR 103.4 KPA
Non-venting Traps
(Steam Pressure Below 15 PSIG Or 103.4 KPa)
Fig. 2-76 – StEAM PiPing FOR ViFB COil
LD09634
Summary of Contents for YORK SOLUTION LD09624
Page 4: ...johnson controls 4 FORM 102 20 N1 1109 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 10: ...johnson controls 10 FORM 102 20 N1 1109 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 16: ...johnson controls 16 FORM 102 20 N1 1109 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 30: ...johnson controls 1 8 FORM 102 20 N1 1109 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 106: ...johnson controls 2 76 FORM 102 20 N1 1109 THIS PAGE INTENTIONALLY LEFT BLANK ...