Titus HEPAlert User Manual

IOM-HEPA-RT-00

Installation Manual

725343-01

HEPALERT™ LED LIGHT Kit

Installation, Operation, and Maintenance Manual

for the RadiaTec Diffuser

09-30-04

Contents Page

Introduction.............................................................1

General ....................................................................1

Safety .......................................................................1

Inspection................................................................1

Product Description ...............................................1

Tools and Equipment .............................................1

Preparation..............................................................1

Installation...............................................................2

Startup and Operation............................................5

Calibration ...............................................................5

Maintenance ............................................................5

Abbreviations..........................................................6

Appendix - Bill of Materials ...................................6

Introduction

This document provides installation, operation, and
maintenance information for the Titus HEPA
Light Kit installed on RadiaTec diffusers, specifically.

Additional information may be found at the Titus website,
www.titus-hvac.com.

LERT™ LED

General

The following information is to be used by the installer as a
guide. Since each installation is unique unto itself, only
general topics are covered. Topic order may not be the
same as required by actual installation.

This guide is not intended to supersede or circumvent any
applicable national, state, or local codes.

The installation is to be performed only by individuals
whose experience meets or exceeds the requirements of
the work involved.

The installer MUST read the entire contents of this guide
and develop a thorough understanding before begin
installation.

Due to a continuing program of product research, Titus
reserves the right to discontinue or change without notice,
any or all specifications or designs without incurring
obligations.

ning

Safety

The installation and / or servicing of comfort conditioning
equipment can be hazardous due to system pressures
and electrical devices.

Caution: Only trained and qualified personnel
should perform service and/or installation.

Observe all precautions and warnings in product
data or attached to the unit.

Follow all safety codes. Wear eye
Have a fire extinguisher readily available.

Caution: Disconnect all power supplies before
accessing equipment.

Disconnecting more than one power supply may
be required to de-energize some equipment.

DANGER

ELECTRIC SHOCK CAN CAUSE DEATH.

protection and gloves.

Inspection

Thoroughly inspect all packages upon receipt. Ensure
carton(s) have not been dropped, crushed or punctured.
Inspect all contents for damage. If damage is found,
immediately file a claim with the delivering carrier.

Product Description

The HEPALERT™ LED Light Kit provides an easy and
visible verification for HEPA filter cleanliness from the
occupied space. The kit uses pressure sensors and light
emitting diodes (LED) indicators to alert clean room users
when filter replacement is needed.

Tools and Equipment

In addition to the HEPALERT LED light kit the following
items (supplied by others) assist the installation process.

• Transformer (Class 2 – 120 Vac to 24 Vac
transformer, rated 40 VA)

• Power cord for transformer

• Silicon sealant

• Rubber tubing – 3/8-inch OD

• Screw drivers (various sizes of Phillips and flat

blades)

• Drill and drill bits (sizes needed are 3/16-, ¼-, 3/8-,
and 5/8-inch)

Preparation

• Unpack HEPAlert LED Light Kit and check contents
against Bill of Materials.

• Sort contents, especially wire, screws, nuts according
to color, size, and type as listed on the Bill of
Materials.

• Keep Bill of Material

• Remove HEPA filter and back pan before attempting

installation.

s readily available for reference.

605 Shiloh Road • Plano, Texas 75074 • 972- 212-4800

All rights reserved. No part of this work may be reproduced or transmitted in any form or any means, electronic or mechanical, including photocopying and recording, or by any information storage retrieval system without permission in writing from Air Distribution Technologies.

HEPA

LERT Kit Installation Manual

Installation

Determine and mark hole locations in back pan

1.
(see Figure 1). Before drilling holes, position the
base bracket on back pan to verify alignment of
marked holes to bracket openings. Drill holes and
insert grommet into the 5/8-inch diameter hole.

Determine and mark hole locations on HEPA filter

2.
frame (see Figure 2). Before drilling frame holes,
verify the marked holes align directly under the
back pan holes in final installation. Insert grommet
into the 5/8-inch diameter hole.

Determine LED bracket placement on the back

3.
pan. Dr

ill mounting holes on the side of back pan
(see Figure 3). The holes should be on the side of
the back pan adjacent to the holes drilled in Steps
1 and 2.

IOM-HEPA-RT-00

725343-01

Secure the pressure switch and terminal barrier

4.
strip to base bracket using pan head screws and
hex nuts (see Figure 4).

Secure base bracket to back pan using self-tapping

5.
screws (see Figure 5).

Figure 3. RadiaTec Hole Placement for LED Bracket

09-30-04

Figure 1. HEPALERT Kit Hole Placement

Contaminants

Figure 2. HEPA Filter Frame Hole Locations

Figure 4. Base Bracket with Pressure Switch and

Terminal Barrier Attached

Figure 5. HEPA

LERT Base Attached to Back Pan

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LERT Kit Installation Manual

IOM-HEPA-RT-00

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Secure LED bracket to inside of back pan using

6.
self-tapping screws (see Figure 6).

Secure the LED assemblies to LED bracket using

7.
self-tapping screws (see Figure 6).

Feed quick-connect terminals of LED assemblies

8.
through the grommets on HEPA filter frame and
back pan (see Figure 6).

Insert 9-inch rubber tube through the 3/8-inch

9.
diameter holes in back pan and HEPA filter frame.
Connect tube to the high-pressure port of the
pressure switch (see Figure 7).

Insert 3-inch rubber tube through the hole on back

10.
pan and connect tube to the low-pressure port of
pressure switch (see Figure 7). Use silicon sealant
to seal both sides of the back pan hole to prevent
leakage.

Connect spade-tongue terminal on the white LED

11.
assembly wire to the terminal barrier strip (see
Figure 8).

Connect the quick-connect terminal on the blue

12.
LED assembly wire to the low-pressure terminal on
the pressure switch (see Figure 8).

Connect the quick connect terminal on the red LED

13.
assembly wire to high-pressure terminal on the
pressure switch (see Figure 8).

Ensure all drilled holes and gaps in grommets and

14.
tubing ports in back pan and HEPA filter frame are
sealed with silicon sealant.

Connect quick-connect terminal of 8-inch

15.
assembly to pressure sensor power terminal.
Connect spade-tongue terminal to the terminal
barrier strip adjacent to white wire (see Figure 9).

red wire

Figure 6. HEPAlert Base Bracket and LED Bracket

Placement

Note: Seal inside and outside of backpan with silicon
sealant.

Figure 7. Rubber Tube and Pressure Port Connections

Figure 8. LED to Pressure Switch Wiring Connections

Figure 9. LED to Pressure Switch Wiring Connections

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HEPA

Secure a class 2 – 120 Vac to 24 Vac transformer

16.
(rated for 40 VA. Transformer supplied by others.)
to back pan using self-tapping screws (see Figure

10).

Connect spade-tongue terminal of 14-inch red wire

17.
assembly to terminal barrier strip across from
previously connected red wire (see Figure 11).

Connect spade-tongue terminal of 14-inch white

18.
wire assembly to terminal barrier strip across from
previously connected white wire (see Figure 11).

Feed quick-connect terminals of red and white wire

19.
assemblies through grommet in side of base
bracket. Connect to transformer (see Figure 11).

NOTE: A single transformer may be used to
power multiple HEPAlert
red and white wire assemblies are supplied to
interconnect terminal barrier strips of
HEPAlert

Place and align top cover to base bracket and

20.
secure using self-tapping screws to secure (see
Figure 12).

Connect AC supply power wires to transformer

21.
(see Figure 13).

Install clean HEPA filter with wing nuts. Restore the

22.
face screen to diffuser.

Note: Refer to RadiaTec Installation Manual
available on www.Titus-hvac.com

TM

Kits on adjacent diffusers.

LERT Kit Installation Manual

TM

Kits. The 60-inch

Figure 11. HEPA

IOM-HEPA-RT-00

725343-01

LERT Kit and Transformer Wiring

09-30-04

Note: Use a Class 2 – 120 Vac to 24 Vac transformer
(rated for 40 VA).

Figure 10. Transformer Placement

Figure 12. Securing Top Cover

Figure 13. Power Cord Connection

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HEPA

LERT Kit Installation Manual

Startup and Operation

When power is supplied, the green LED comes on,
indicating the system is functioning.

The red LED comes on when a pressure differential of
50% is reached, indicating that filter needs to be replaced.

Once a clean filter is inserted in the filter frame, the green
LED comes on.

Calibration

Each HEPAlert kit sensor must be set based on the
module and inlet size. Use the information in the following
steps to calibrate the setscrew.

IOM-HEPA-RT-00

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09-30-04

1.

2.

Module and

10-inch inlet

12-inch inlet

Note: Replace filter when filter is 50% full.

Turn the setscrew clockwise to ensure it is in the fully
closed position. See Figure 14.

Based on the module and inlet size, twist the
setscrew counter-clockwise the prescribed number of
turns from the fully closed position. See

Figure 15 shows the setscrew at the fully open
position.

Figure 16 is a chart showing the pressure from supply
side of the HEPA filter.

Table 1. RadiaTec-AL and RadiaTec-SS

Calibration Settings

Number of CCW Turns

from Fully Closed

(50% Full Filter Setting)

Inlet Size

24 x 24

inches

8-inch inlet

24 x 24

inches

8-inch inlet

48 x 24

inches

48 x 24

inches

1- or 2-way

Pattern

CFM

200 2 ¾

300 2 ½

400 2

300 2 ½

400 2 ¼

500 2

400 2 ½

600 2 ¼

800 2

600 2 ½

800 2 ¼

1000 2

Figure 14. Setscrew at Fully Closed Position

Table 1.

Position

Figure 15. Setscrew at Fully Open Position

Maintenance

Components of the HEPAlert require no regular
maintenance. However, if neither LED is on, check the
following items.

• Power supplied to unit.

• Wiring and tubing connections are secure.

• Transformer is operational (use a voltmeter).

Contact a Titus representative if service or replacement is
required.

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4 1/2

HEPA

LERT Kit Installation Manual

# of CCW Turns from the
bottomed-down position

IOM-HEPA-RT-00

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09-30-04

4

3 1/2

3

2 1/2

2

1 1/2

1

1/2

Closed (Bottomed-Down) Position

0

# of CCW Turns on Setting Screw from the

y = 3.0026674924016900000000000x

R2 = 0.9932736534985160000000000

0123 45678

Ps, in. wg. (HEPA-Supply Side)

Figure 16. Setscrew Position Versus Filter Pressure

Abbreviations

The following abbreviations were used in this document.

Abbrev. Term

AC Alternating Current

CCW counter-clockwise

DP Differential Pressure

HEPA High Efficient Particulate Air

ID Inside Diameter

LED Light Emitting Diode

OD Outside Diameter

Vac Volts alternating current

Vdc Volts direct current

Power (# of CCW Turns
from the bottomed-down
position)

-0.1873089407736940000000000

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LERT Kit Installation Manual

Appendix - Bill of Materials

The following table provides a bill of materials list for
the HEPA

LERT kit.

Table 1. Bill of Materials

Part / Assembly

No.

724939-01 Base EA 1

724940-01 Cover EA 1

724809-01 Bracket, LED Indicator EA 1

103533-01 Switch, DP Air EA 1

103544-01 LED Assembly EA 1

103520-01 Wire Assembly, Red, 14-inch EA 1

103520-02 Wire Assembly, White, 14-inch EA 1

103520-03 Wire Assembly, Red, 8-inch EA 1

103520-04 Wire Assembly, Red, 60-inch EA 1

103520-05 Wire Assembly, White, 60-inch EA 1

103534-01 Terminal Barrier Strip, 2 Position EA 1

102215-01 Rubber Tube, 0.16 ID, 3/8-inch OD, 9-inch IN 1

102215-01 Rubber Tube, 0.16 ID, 3/8-inch, 3-inch IN 1

00TCBE Screw, Self-Tapping, #8 X 0.50 EA 10

103574-01 Screw, Pan Head, 6-32 X 0.75 EA 10

103569-01 Nut, Hex, 6-32 EA 10

101796-01 Grommet, 0.50 ID EA 4

725343-01 HEPALERT™ LED Light Kit Installation Manual EA 1

Description

IOM-HEPA-RT-00

725343-01

Unit of

Measure

Quantity

09-30-04

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