SAFETY INSTRUCTION
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 INSTRUCTIONS MAY
RESULT IN A SAFETY HAZARD.
CAUTION:
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.
CAUTION:
Over-tightening and breakage can occur with the use of Teflon
®
pipe joint compounds. Teflon
®
provides lubricity so that care must be
exercised not to over-tighten joints. Failure to follow these instructions
could result in property damage and /or personal injury.
WARNING:
System fluids are under pressure or temperature can be
hazardous. Be sure the pressure has been reduced to zero and the
system temperature is below 100°F (38°C). Failure to follow these
instructions could result in property damage and/or personal injury.
WARNING:
Clean the pipes of any debris, rust, incrustations, welding slag
and any other contaminants. For optimal operation, air in the system must
be removed.
Installation
Install the FlowCal
TM
automatic flow balancing valves on the circuit return pipe with flow
direction arrows indicating proper flow direction. It is important to allow easy access to the
FlowCal for inspection and maintenance.
The identification tag with the technical data must accompany the balancing valve after
installation. It is equipped with a special metal retaining ball chain especially useful when the
valve is enclosed with insulation.
Install a Y-strainer (series 120 on circuit supply pipe of the emitter coil to prevent clogging.
Strainers should be inspected and cleaned after start-up and twice per year thereafter.
FlowCal
TM
balancing valves may be installed in the pipe horizontally, vertically or at any angle.
For Sweat fittings: Union sweat tailpieces should be removed from the valve body for sweating to
the pipeline. Remove the
flow cartridg e (and adapter
for
larger
sizes)
and
FLOWCAL
Version
pressure port plugs while
sweating the fixed end into
RETURN
the pipeline. In addition,
wrap a wet cloth around the
EMITTER
ball valve portion of the
Y-Strainer Version
series 121 flow balancing
SUPPLY
valve (and the 120 Y-strainer)
when sweating in the integral
sweat body connection.
WARNING:
This product can expose you to chemicals including lead, which is
known to the State of California to cause cancer and birth defects or other
reproductive harm. For more information go to www.P65Warnings.ca.gov.
