Amtrol FT-109 THROUGH FT-111 warranty Pre-Installation, Maintenance, Operation, Warranty

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

1Visually 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 shut- off 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		Type of Radiation
Net Output
	Finned Tube	Convectors	Radiators	Baseboard
in 1000’S	Baseboard or	or Unit
of BTU/Hr.	Radiant Panel	Heaters	Cast Iron	Cast Iron
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	FT-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

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

Figure 2.

Pipe Nipple

Air Vent

Pressure- Backflow Shut-Off

ReducingValve

Water

Supply

Spring-Loaded	Automatic Shut-Off
Check Valve	Valve Spring
Removable
Strainer	Expansion
Cold Water	Bypass
Supply

					Air
System				Purger
Supply
	Flow-Check		Circulator
		Valve

Valve Preventer

Shut-Off	System
Valve	Purge

System Return

1/2˝ Compression		Automatic
		Shut-Off Valve
Fitting Connection	Fill Gate
	Stem	Pressure Plate
O-Ring Seal
		Diaphragm
System Pressure
Above Diaphragm

Fill-Trol Valve

Fill-Trol

Expansion

Tank

Relief

Valve

Boiler

© 2014 AMTROL Inc.

1400 Division Road, West Warwick, RI USA 02893

T:800.426.8765 F: 800.293.1519 www.amtrol.com

Mark of the

Originator

Part #: 9015-026 (06/14)