Bell & Gossett V57050B SRS Pneumatic Purge Valve - Manual

SRS
Pneumatic
Purge Valve
SAFETY
INSTRUCTIONS
This safety alert symbol will be used in this manual to draw
attention to safety related instructions. When used, the safety
alert symbol means ATTENTION! BECOME ALERT! YOUR
SAFETY IS INVOLVED! FAILURE TO FOLLOW THESE IN-
STRUCTIONS MAY RESULT IN A SAFETY HAZARD.
DESCRIPTION
The SRS Pneumatic Purge Valve is an air-operated diaphragm
valve with programmable timer. It is used to purge sediment
from an open or closed loop hydronic system that is sepa-
rated out and collected in the bottom of the SRS.
OPERATIONAL LIMITS
Maximum Fluid Operating Temperature: 250°F (121°C)
Maximum Fluid Operating Pressure: 150 PSI (1034 kPa)
Min/Max Ambient Temperature: 32-130°F (0-54°C)
Min/Max Control Air Pressure: 65-145 PSI (450-1000 kPa)
INSTALLATION INSTRUCTIONS
Connections Required To Valve/Timer:
120V AC (±10%) to timer 3-terminal strip.
Air connection to 1/4" FNPT port on solenoid
Valve. 1" FNPT inlet and outlet.
1. Reference Sediment Removal Separator Instruction Manual
A05767.
2. For best results, purge valve/timer should be installed up-
stream of any pipe bends.
3. The purge valve/timer can be installed in any orientation.
4. A manual gate or ball valve is recommended between the
SRS and the purge valve/timer in the event that the purge
valve needs repair. During normal operation, this manual
valve must remain fully open.
CAUTION: The use of PTFE impregnated pipe com-
pound and PTFE tape on pipe threads provides
lubricity which can lead to overtightening and breakage.
Do not overtighten. Failure to follow this instruction can
result in MODERATE personal injury from hot water and/or
property damage.
WARNING LABEL PART NO. V56845
INSTALLED IN THIS LOCATION.
IF MISSING, IT MUST BE REPLACED.
INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE.
Figure 1
INLET
FROM BOILER
CHILLER OR
CONVERTER
AUTOMATIC
AIR VENT
B&G SEDIMENT
REMOVAL
SEPARATOR
MANUAL
SHUTOFF
VALVE
BLOW DOWN
VALVE
TO PUMP
SECTION
OUTLET
INSTRUCTION MANUAL
V57050B