Amtrol FT-109, FT-111 User Manual

FILL-TROL

®

COMBINATION EXPANSION TANK AND VALVE UNITS

INSTALLATION & OPERATION INSTRUCTIONS

Models FT-109 through FT-111

For Use In Closed Hydronic Systems Only

NOTE: Inspect for shipping damage. Notify freight carrier or store where purchased immediately if damage is present. To avoid risk of personal injury
and property damage, if the product appears to be malfunctioning or shows signs of corrosion, call a qualified professional immediately. Current copies

of the product manual can be viewed at www.amtrol.com. Use proper safety equipment when installing.

THIS IS THE SAFETY ALERT SYMBOL. IT IS USED TO ALERT YOU TO POTENTIAL PERSONAL INJURY AND OTHER
HAZARDS. OBEY ALL SAFETY MESSAGES THAT FOLLOW THIS SYMBOL TO REDUCE THE RISK OF PERSONAL
INJURY AS WELL AS PROPERTY DAMAGE.

USE ONLY IN CLOSED HYDRONIC SYSTEMS.

open heating systems. Corrosion and tank failure may result. Use a
Therm-X-Trol® or Therm-X-Span® for domestic water systems. Use a
Radiant EXTROL® for radiant heating systems where air elimination
equipment or barrier tubing is not used.

FAILURE TO FOLLOW THE INSTRUCTIONS AND WARNINGS IN THE
MANUAL MAY RESULT IN SERIOUS OR FATAL INJURY AND/OR
PROPERTY DAMAGE, AND WILL VOID THE PRODUCT WARRANTY.
THIS PRODUCT MUST BE INSTALLED BY A QUALIFIED
PROFESSIONAL. FOLLOW ALL APPLICABLE LOCAL AND STATE
CODES AND REGULATIONS, IN THE ABSENCE OF SUCH CODES,
FOLLOW THE CURRENT EDITIONS OF THE NATIONAL PLUMBING
CODE AND

explode, causing serious or fatal injury, leaking or flooding and/or
property damage. To minimize risk, a licensed professional must install
and periodically inspect and service the Product. A drip pan connected to
an adequate drain must be installed if leaking or flooding could cause
property damage. Do not locate in an area where leaking could cause
property damage to the area adjacent to the appliance or to lower floors
of the structure.

CALIFORNIA PROPOSITION 65 WARNING! This product contains a
chemical known by the State of California to cause cancer and to cause
birth defects or other reproductive harm. (California Installer/Contractor

- California law requires that this notice be given to consumer/end user
of this product.) For more information: www.amtrol.com/prop65.html

NATIONAL ELECTRIC CODE, AS APPLICABLE.

Do not install on domestic water systems, or in

READ CAREFULLY THE PRODUCT INSTALLATION,
OPERATING AND MAINTENANCE MANUAL.

This Product, like most Products under pressure,
may over time corrode, weaken and burst or

temperatures in excess of 240°F. Do not adjust the pre-charge or
re-charge this Product except during installation or regular inspection.
Replace the Product and do not adjust the pre-charge if corroded,
damaged or with diminished integrity. Adjustments to pre-charge must be
done at ambient temperature only. Failure to properly size the Product or
follow these instructions may result in excessive strain on the system and
may lead to Product failure, serious or fatal personal injury, leakage, and/
or property damage.

working pressure designated in the Product Manual, whichever is less.
At least once every 3 years or if discharge is present, a licensed
contractor should inspect the pressure relief valve and replace if
corrosion is evident or the valve does not function. FAILURE TO

INSPECT THIS VALVE AS DIRECTED COULD RESULT IN UNSAFE
PRESSURE BUILD-UP WHICH CAN RESULT IN PRODUCT FAILURE,
SERIOUS INJURY OR DEATH AND/OR SEVERE PROPERTY
DAMAGE AND VOID THE PRODUCT WARRANTY.

You should test for corrosive elements, acidity, total solids and other
relevant contaminants, including chlorine and treat your water appropriately
to insure satisfactory performance and prevent premature failure.

RUPTURE OR EXPLOSION HAZARD. Do not
expose product to freezing temperatures or

A relief valve must be installed to prevent pressure
in excess of local code requirement or maximum

Chlorine & Aggressive Water: The water quality
can significantly influence the life of this Product.

PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY

IMPORTANT GENERAL SAFETY INFORMATION -

ADDITIONAL SPECIFIC SAFETY ALERTS APPEAR IN THE FOLLOWING INSTRUCTIONS.

FILL-TROL® is a combination of an EXTROL® expansion tank and
a specially designed automatic pressure reducing valve. Together,
they manage water expansion to provide satisfactory heating system
performance.

The EXTROL is pre-charged at the factory to 12 PSIG and is ready
to install in most residential and light commercial systems without
adjustment. The valve is designed to fill the system with water and
automatically shut off the flow when it reaches the precharge pressure
in the tank. It will also restore the system to 12 PSIG if the pressure
drops below that point. The precharge may be changed to set the
desired fill pressure.

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 desired system fill
pressure. Unit is shipped at 12 PSIG.

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.

Installation

1. Drain the boiler system or isolate the area where the unit will
be installed.

2. Install the unit on the supply side of the boiler, on the suction-side of
the heating circulator(s) (Figure 2).

Mount tank vertically only. Ensure the piping
can support the entire weight of the tank when
full of water.

Do not install on a dead-end pipe or wherever
air can collect; causing internal corrosion and
possible leakage.

3. Make connection to system with 1/2" pipe nipple from tapping marked
SYSTEM.

4. Connect cold water supply to 1/2" compression fitting connection at
SUPPLY.

5. Pressurize the system and check for leaks. Repair as necessary.

6. Restart the boiler system and check for relief valve discharge. If the
relief valve drips, the tank may be improperly charged or undersized.

7. The unit is now operational and will absorb expanded water during
boiler operation.

Maintenance

To remove screen in Fill-Trol valve for cleaning, shut off main water
supply to heating system and remove compression nut.

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 amount 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.
Be sure to maintain the proper precharge whenever the tank
is inspected.

Operation

Water enters the Fill-Trol valve through the 1/2" compression fitting
connection, passes through the removable strainer and pushes open
the spring-loaded check valve. It then flows through the automatic shut­off valve which is held in the open position by the diaphragm pushing
against the pressure plate. This raises the fill-gate stem and compresses
the automatic shut-off valve spring allowing water to flow into the heating
system. It is the charge pressure in the tank that forces the diaphragm
into position.

As the system reaches the fill pressure, the diaphragm moves, allowing
the automatic shut-off valve to close.

When the system falls below the fill pressure, the diaphragm again
pushes open the automatic shut-off valve, allowing water to flow into the
system and restore system pressure.

The Fill-Trol is shipped with a factory precharge of 12 PSIG which
automatically sets the minimum fill pressure to 12 PSIG. Other minimum
fill pressures my be used by increasing or decreasing the air charge in the
tank. Carefully follow the instructions for changing the air charge.

Warranty

FT Models: Five (5) Year Limited Warranty

Visit www.amtrol.com for complete warranty details.

Figure 1.

Boiler

Net Output

in 1000’S

of BTU/Hr.

25 FT-109 FT-109 FT-109 FT-109

50 FT-109 FT-109 FT-110 FT-110

75 FT-110 FT-110 FT-110 F T-111

100 FT-110 FT-110 FT -111 FT- 111

125 FT-110 FT -111 FT- 111 NA

150 FT-110 FT -111 NA NA

175 FT -111 FT- 111 NA NA

200 FT -111 FT- 111 NA NA

250 FT -111 NA NA NA

Finned Tube

Baseboard or

Radiant Panel

Sizing based on: 12 psig Fill; 30 psig Relief Valve; 200°F Average Temperature.

Figure 2.

Type of Radiation

Convectors

or Unit

Heaters

Radiators
Cast Iron

Baseboard

Cast Iron

Pipe Nipple

Spring-Loaded

Removable

Strainer

Cold Water

Supply

1/2˝ Compression

Fitting Connection

System Pressure

Above Diaphragm

Check Valve

Fill Gate

Stem

O-Ring Seal

Automatic Shut-Off

Valve Spring

Expansion

Bypass

Automatic

Shut-Off Valve

Pressure Plate

Diaphragm

System
Supply

Flow-Check

Valve

Circulator

Fill-Trol Valve

Air

Purger

Air Vent

Fill-Trol

Expansion

Tank

1400 Division Road, West Warwick, RI USA 02893

T: 800.426.8765 F: 800.293.1519

© 2014 AMTROL Inc. Part #: 9015-026 (06/14)

www.amtrol.com

Pressure­Reducing

Valve

Shut-Off

Valve

Boiler

System

Purge

Backflow
Preventer

Mark of the

Originator

Shut-Off

Relief
Valve

Valve

Water

Supply

System

Return