HALE SmartFOAM 1.7AHP, Description, Installation And Operation Manual

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Page 58
SmartFOAM
1. Layout and drill holes in the top of the foam tank (see Figure 41 : Top Mount Sensor Dimensions ).
2. The center of the sensor should be located at least 1-
1/2” to 2” (38 to 51mm) from the sides of the foam tank.
Note : The minimum depth of the foam tank for installation of the top mount sensor is 31-
1/2” (800mm). If the tank
depth is less than 31-
1/2” (800mm) cut the tubing accordingly. (See heading “
Resizing the Top Mount Low
Level Sensor
”).
3. Determine the approximate length of the low tank sensor extension by measuring from the top of the foam tank at
the flange opening to the bottom of the tank.
4. When properly installed the center of the sensor float should be 1-
1/2” to 2” (38 to 51mm) above the bottom of the
foam tank.
5. Loosen the strain relief gland nut to allow the sensor wire to slide through the strain relief.
6. Adjust the telescoping section until the desired length is achieved as measured from the bottom of the flange to
the bottom of the sensor. Tighten the compression fittings on the union to lock length setting (see Figure 42 : Top
Mount Low Level Sensor Assembly ).
7. Tighten the strain relief around the sensor wire.
CAUTION!
USE MOUNTING HARDWARE THAT IS COMPATIBLE WITH ALL FOAM CONCENTRATES BEING USED IN THE
SYSTEM. USE WASHERS, LOCK WASHERS AND CAP SCREWS MADE OF BRASS OR 300 SERIES STAINLESS
STEEL.
8.
Insert the sensor assembly through the 1.31” (33mm) hole and align the screw holes on the flange and gasket
with the holes on the tank. Secure the assembly in place using four 1/4-
20 UNC x 1” (25mm) long cap screws,
1/4” (7mm) washers and lock washers.
Resizing the Top Mount Low Level Sensor
Certain applications may require the top mounted sensor to be shorter than factory length (see Figure 42 : Top Mount
Low Level Sensor Assembly ).
To resize:
1. Loosen and remove the strain relief gland nut and strain relief from the top of the sensor assembly.
2.
Loosen and remove the 1/4” (6mm) FNPT x 1/2” (13mm) tube compression fitting from the bottom of the
assembly.
3. Slide the sensor assembly out from the bottom being careful not to damage the wiring as it is pulled from the
assembly. DO NOT separate the 1/2” inch tube from the 5/8” tube.
4.
Loosen the compression nut from the 1/2” (13mm) FNPT x 5/8” (16mm) tube compression fitting at the top of the
assembly.
5.
Using a tubing cutter, remove an “equal” amount from the end of each tube (5/8” and 1/2”). You must cut off the
ferrule from both ends. Deburr the cuts using a fine emery paper.
6.
Install a new 1/2” (13mm) compression ferrule on the end of the 1/2” O.D. tube. Carefully thread the sensor wire
through the tube assembly.
7.
Attach the 1/4” (6mm) FNPT x 1/2” (13mm) tube compression fitting, with sensor attached, to the end of the tube.
8.
Install and tighten the 1/2” compression nut (see Figure 42
: Top Mount Low Level Sensor Assembly ).
9.
Install a new 5/8” (16mm) compression ferrule on the end of the 5/8” O.D. tube. Carefully thread the sensor wire
through the flange and gasket assembly and install strain relief and strain relief gland nut. DO NOT tighten.
10.
Install and tighten the 5/8” (16mm) tube compression nut.