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PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY FOR
IMPORTANT GENERAL SAFETY INFORMATION AND ADDITIONAL SPECIFIC SAFETY ALERTS.
Pre-Installation
1 Visually inspect for any damage. Ensure expansion tank is sized
properly for application (Figure 1).
2. Remove plastic cap from air valve.
3. With tank empty of water, adjust air precharge to match system fill
pressure.
4. Replace and tighten plastic cap on air valve.
FAILURE TO PROPERLY SEAL VALVE CAP
WILL RESULT IN LOSS OF PRECHARGE
CAUSING PRODUCT TO FAIL.
Mount tank vertically in downward position only.
Ensure the piping can support the entire weight
of the tank when full of water.
Models SX-30V through SX-160V are floor
standing and may not be hung from the piping.
Do not install the EXTROL on a dead-end pipe
or wherever air can collect. This can cause
corrosion and possible leakage.
Installation
1. Drain the boiler system or isolate the area where the EXTROL will
be installed.
Figure 1.
Boiler
Net Output
Finned Tube
in 1000'S
Baseboard or
of BTU/Hr.
Radiant Panel
25
EX-15
50
EX-15
75
EX-30
100
EX-30
125
EX-30
150
EX-30
175
EX-60
200
EX-60
250
EX-60
300
EX-90
350
SX-30V
400
SX-30V
Sizi ng based on: 12 psig Fill; 30 psig Relief Valve; 200°F Average Temperature.
Type of Radiation and Piping System
Boiler
Finned Tube
Convectors or
Net Output in
Baseboard or Radiant
Unit Heaters
1000's of BTU
Panels with Series
with One Pipe
Loop System
200
SX- 30V
SX-30V
250
SX- 30V
SX-30V
300
SX- 30V
SX-30V
350
SX-30V
SX-30V
400
SX-30V
SX-40V
450
SX-40V
SX-40V
500
SX-40V
SX-40V
550
SX-40V
SX-60V
600
SX-40V
SX-60V
650
SX-60V
SX-60V
700
SX-60V
SX-60V
750
SX-60V
SX-60V
800
SX-60V
SX-90V
850
SX-60V
SX-90V
900
SX-60V
SX-90V
950
SX-90V
SX-90V
1,000
SX-90V
SX-90V
1,100
SX-90V
SX-90V
1,200
SX-90V
SX-90V
1,300
SX-90V
SX-110V
1,400
SX-110V
SX-130V
1,500
SX-110V
SX-130V
Sizing based on: Average Boiler Water Volume; Average Water Volume;
Fill Pressure 12 psig; Relief Pressure 30 psig
© 2016 AMTROL Inc.
VISIT www.amtrol.com TO VIEW HELPFUL VIDEOS
Type of Radiation
Convectors
Radiators
Baseboard
or Unit
Cast Iron
Cast Iron
Heaters
EX-15
EX-15
EX-15
EX-15
EX-30
EX-30
EX-30
EX-30
EX-60
EX-30
EX-60
EX-60
EX-60
EX-60
EX-90
EX-60
EX-90
EX-90
EX-60
SX-30V
SX-30V
EX-60
SX-30V
SX-30V
EX-90
SX-30V
SX-40V
SX-30V
SX-30V
SX-40V
SX-30V
SX-40V
SX-60V
SX-40V
SX-40V
SX-60V
Radiators
Cast Iron
or
Radiators
One Pipe
with Series
System
System
Loop System
SX-30V
SX-30V
SX-30V
SX-40V
SX-40V
SX-40V
SX-40V
SX-60V
SX-60V
SX-60V
SX-90V
SX-90V
SX-60V
SX-90V
SX-60V
SX-90V
SX-90V
SX-90V
SX-90V
SX-90V
SX-90V
SX-90V
SX-90V
SX-110V
SX-90V
SX-110V
SX-90V
SX-110V
SX-110V
SX-110V
SX-110V
SX-110V
SX-110V
SX-110V
SX-110V
SX-130V
SX-110V
SX-130V
SX-130V
SX-160V
SX-160V
SX-160V
SX-160V
(2)SX-110V
1400 Division Road, West Warwick, RI USA 02893
T: 800.426.8765
2. Install the EXTROL on the supply side of the boiler, on the suction-side
of the heating circulator(s) (Figure 2).
3. Pressurize the system and check for leaks. Repair as necessary.
4. Restart the boiler system and check for relief valve discharge. If the
relief valve drips, the tank may be improperly charged or undersized.
5. The EXTROL is now operational and will absorb expanded water
during boiler operation.
Maintenance
A professional plumber should check the complete system,
including the expansion tank, yearly and more frequently as the
system ages. Checking the precharge allows a small quantity of
air to escape and can result in an insufficient air charge. Always
check the precharge while the tank is isolated and empty of water,
and be sure to maintain the proper precharge whenever the tank
is inspected.
Warranty
EX Models: Five (5) Year Limited Warranty
SX Models: One (1) Year Limited Warranty
Visit www.amtrol.com for complete warranty details.
Figure 2.
In-Line Models:
EX-15 through EX-90
System
Supply
Flow-Check
Circulator
Valve
Stand Models:
SX-30V through SX-160V
System
Supply
Flow-Check
Circulator
Valve
F: 800.293.1519
www.amtrol.com
.
Pressure-
Shut-Off
Backflow
Air Vent
Reducing
Preventer
Valve
Air
Purger
Shut-Off
System
Valve
Purge
Relief
Valve
Extrol
Expansion
Tank
Boiler
Pressure-
Reducing
Backflow
Valve
Air Vent
Preventer
Air
Separator
Shut-Off
System
Valve
Purge
Extrol
Boiler
Expansion
Tank
Mark of the
Originator
Part #: 9015-183 (07/16)
Water
Supply
Valve
System
Return
Water
Supply
Shut-Off
Valve
System
Return
Relief
Valve
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