Page 1
www.cal .com
CALEFFI
38459.03
Automatic Air Vent Automatic Air Vent with check valve
Copyright 2018 Caleffi
©
Function
Float type automatic air vent designed to vent air that is released from the
water while being heated. Check valve on 5027 series allows for easy
replacement of air vent without purging the system.
These items are designed for use in closed hydronic systems. Do not use
in plumbing applications. These items do not meet the low-lead
plumbing standards of U.S. and Canada.
Technical Characteristics
Connection: 1/8” NPT male
Materials: Body Brass
Maximum working pressure: hot water 150 psi (10 bar)
Maximum venting pressure: 90 psig (4 bar)
Maximum working temperature: 240˚ F (115˚ C)
SAFETY INSTRUCTION
This safety aler
instructions. When used, the safety alert symbol means
YOUR SAFETY IS INVOLVED! FAILURE TO FOLLOW THESE INSTRUCTIONS MAY
RESULT IN A SAFETY HAZARD.
t symbol will be used in this manual to draw attention to safety related
Seals peroxide-cured EPDM
ATTENTION: BECOME ALERT!
.
5026-5027 Series
1/4” NPT male
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.
CAUTION:
proper application, installation, and maintenance of systems in accordance
with all applicable codes and or
CAUTION: Over-tightening and
exercised not to over-tighten joints. Failure to follow these instructions
could result in property damage and /or personal injury.
W
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 r
ARNING:
dinances.
®
provides lubricity so that care must be
pressure or temperature can be
esult in property damage and/or personal injury.
®
Page 2
Installation
The vent is installed in the vertical position, on the air
separator, on manifolds, on riser pipes and generally in
parts of the system where a concentration of air pockets is
to be expected.
Check valve on 5027 series should be installed prior to air
vent. Insure air vent is properly lined-up with female check
valve guide.
WrongCorrect
CAUTION:
Uncontrolled venting of water can occur with the automatic
air vent if dirt, scale, pipe joint compound or any other foreign materials
becomes trapped in the operating mechanism. Keep vent cap closed
during lling to prevent dirt from owing into vent mechanism. Failure to follow
these instructions could result in property damage and/or personal injury.
Operation Instructions
The automatic
air vent can be used for manual or automatic venting of sealed hydronic
systems.
• For normal automatic venting, open cap one full turn for a slow release of air. A fast release
of the air will allow dirt or scale in the water to plug the operating mechanism. The small hole
in the side of the cap allows air to escape.
• To shuto automatic air vent, screw cap down tight.
CAUTION:
Corrosion or leakage can cause damage or injury.
Periodically inspect for signs of corrosion or leakage. If corrosion or
leakage is note, the vent must be replaced. Failure to follow these
instructions could result in property damage and/or personal injury.
Scan to view
Service Instructions
There is no service required for the automatic air vent.
Installation Tip
·
AIR VENTS
Caleffi North America, Inc.
3883 West Milwaukee Road
Milwaukee, WI 53208
T: 414.238.2360 F: 414.238.2366
7-19-18
Loading...