Install Instructions

ManualsBrandsAmtrol ManualsExpansion tanksModel 110-100 Fill-Trol w/ 1" Purger & Air Vent (4.4 Gallon Volume)

(OVER)

INSTALLATION

The FILL-TROL

UNIT

Model 109 FILL-TROL

The FILL-TROL unit is a combination TANK (the unique, specially adapted, pressurized,

EXTROL

diaphragm-type expansion tank), and a specially designed automatic

pressure reducing valve. The FILL-TROL tank provides an air chamber to receive

the expanded volume of water, which is created in the heating system as the water is

heated. It is, therefore, essentially an expansion tank. Pressurizing the tank with a

12-psig air charge results in the pressure-reducing valve being set to 12 psig. Any

adjustment to the precharge automatically adjusts the pressure reducing valve setting.

It is air-charged at the factory to 12 psig and is ready to install in residential and most

commercial systems without adjustments when received.

The FILL-TROL valve fills the system with water and automatically shuts off the flow

when the system is filled and pressurized to 12 psig. It will also restore the system

pressure to 12 psig if the pressure falls below this point.

The FILL-TROL unit, therefore, will automatically take care of system water expansion

and automatically fill the system and maintain a minimum system pressure in a simple

manner to provide a more satisfactory heating system operation.

QUAD

CHECK

AIR

PURGER

AIR

VENT

SUPPLY

MAIN

COLD WATER

SUPPLY

RELIEF

VALVE

AUTOMATIC

FILL VALVE

BOILER

CIRCULATOR

RETURN

MAIN

FILL-TROL

TANK

1/2" PIPE NIPPLE

FILL-TROL

VALVE

STANDARD

PIPE TEE

(OPTIONAL)

1/2" COMPRESSION

FITTING

CONNECTION

COLD WATER

SUPPLY

AMERICAN

AIR VENT

AND AIR PURGER

HEATING SYSTEM

SUPPLY MAIN

An ideal residential FILL-TROL installation is

to mount it on the bottom of an AMTROL

American air vent and purger, located on the

heating system supply main or it may be in

a standard pipe tee (see Figure 1).

To Install

1. Make connection to system with 1/2” pipe

nipple from tapping marked “SYSTEM”.

2. Connect 1/2” copper tubing cold water

supply to 1/2” compression fitting con-

nection at “SUPPLY”.

Form 109-1A

Supersedes Form 109-1

FIGURE 1

West Warwick, Rhode Island 02893

INSTALLATION & OPERATION

INSTRUCTIONS

For Use with FILL-TROL Combination

Expansion Tank and Valve Units

MC#2694

Part No. 9015-026 (11/02)

Summary of content (2 pages)

PAGE 1
INSTALLATION & OPERATION INSTRUCTIONS West Warwick, Rhode Island 02893 For Use with FILL-TROL Combination Expansion Tank and Valve Units ® The FILL-TROL UNIT The FILL-TROL unit is a combination TANK (the unique, specially adapted, pressurized, EXTROL® diaphragm-type expansion tank), and a specially designed automatic pressure reducing valve. The FILL-TROL tank provides an air chamber to receive the expanded volume of water, which is created in the heating system as the water is heated.
PAGE 2
OPERATION The FILL-TROL unit operates in the following manner: Referring to Figure 2, water enters the FILL-TROL valve through the 1/2” compression fitting connection, passes through the 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 charge pressure in the FILL-TROL tank forcing the diaphragm against the pressure plate, which raises the fillgate stem, compressing the automatic shut-off valve spring.