Bell & Gossett V58583 Circuit Sentry Terminal Kits – AC2YL - Manual (Page 3)

4. Install the cartridge as shown below.
OPERATION INSTRUCTIONS
Operation of the Flow Limiting Valve is fully automatic. It auto-
matically maintains the selected flow over the designed differ-
ential pressure range.
Before the system start up, remove cartridge from valve if
previously installed. Flush the hydronic system and then re-
assemble cartridge into the valve and mark sure cap is tight-
ened properly. Start the system and check for the Low Flow
AC valve leak.
SERVICE INSTRUCTIONS
Should the Flow Limiting Valve require cleaning or changing
the flow rate, follow the following instructions.
1. Loosen and remove the cap from the valve body.
2. Pull the cartridge assembly from the valve body for clean-
ing or replacing with the new flow cartridge. Check the car-
tridge by pushing the orifice washer into the cartridge
housing for several times to make sure spring is functional.
Y-STRAINER COMBINATION VALVE
DESCRIPTION
Low Flow Y-strainer Valves are made of brass construction
with an integrated ball valve and strainer.
INSTALLATION INSTRUCTIONS
1. The valves must be installed on the supply side of the coil
with fixed end on the upstream side and union end on the
downstream side.
2. When installing the Y-strainer valves, space around the
units must be provided to remove the strainer from the
strainer body for cleaning.
3. The Y-Strainer must be installed with the strainer chamber
down to prevent air binding and also to allow accumulated
dirt for ease of cleaning.
OPERATING INSTRUCTIONS
Y-strainer can be used to isolate hydronic equipment for
repairs and/or to drain the system. To close the Y-strainer ball
valve, move the handle a quarter of a turn until the handle is
perpendicular to the valve and piping.
If Y-strainer pressure drop becomes excessive accumulated
dirt should blown through the blow-down line (if installed) to a
drain. If a blow-down line is not installed, see the service
instructions for removing and cleaning the strainer. The
Y-strainers have construction with an integrated ball valve will
function as a service valve.
SERVICE INSTRUCTIONS
If excessive pressure drop is noted across the Y-Strainer the
internal strainer has collected a lot of dirt/debris and needs to
be cleaned. Install blow-down line (hose), then open blow-
down valve. If a blowing down the strainer has not solved the
pressure drop problem, the Y-strainer must be disassembled
and strainer to be cleaned.
To clean the strainer, isolate the Y-Strainer from the ball valve
on upstream and downstream of the strainer. Allow the sys-
tem to cool to 100°F (38°C) or less.
Using the appropriate size wrench remove the brass cap
on the Y-strainer. Grab and remove the strainer. Clean the
strainer in water to remove collected debris. Reinstall the
strainer and the strainer cap. Pressurize the system and
check for strainer cap leaks. If noted, slightly tighten nut until
leakage stops.
Periodically inspect the Y-Strainer for signs of corrosion or
leakage. If corrosion or leakage is noted the Y-Strainer must
be replaced.
WARNING: Corrosion or leakage are indications that
the Flow Limiting Valve may be about to cause seri-
ous damage. The Flow Limiting Valve must be replaced.
Failure to follow these instructions could result in serious
personal injury or death and property damage.
CAUTION: Make sure Valve Cap is properly assembled.
Failure to follow these instructions can result in moder-
ate personal injury and/or property damage.
3
CAUTION: Hot un-insulated surfaces can cause
burns to the skin. Do not touch hot surfaces. Failure
to follow these instructions could result in moderate per-
sonal injury.
CAUTION: Hot un-insulated surfaces can cause
burns to the skin. Do not touch hot surfaces. Failure
to follow these instructions could result in moderate per-
sonal injury.
WARNING: Hot fluids and/or fluids under pressure
are a safety hazard. Do not service the strainer while it
is hot or under pressure. Failure to follow these instruc-
tions could result in serious personal injury or death and
property damage.
WARNING: Corrosion or leakage are indications that
the Y-Strainer Valve must be replaced. Failure to fol-
low these instructions could result in serious personal
injury or death and property damage.