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Powers 460 Series AquaSentry 2 Temperature Alarm System User Manual

Lead free, Technical instructions

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The Series LF460 Aqua Sentry 2 Alarm System monitors for

high or low temperature conditions. The system utilizes an

accurate solid state temperature sensor and microprocessor

based digital circuitry to sense and report abnormal tempera-

ture conditions. Standard sensing range is –40°F to 199°F or

–40°C to 93°C (switchable). The alarm panel can be mounted

remotely and provides both audible and visual indication of

alarm condition. With the addition of a solenoid, the alarm can

function as an emergency shutdown system.
A unique latching circuit is used so that the alarm holds

despite a return to normal condition. This feature indicates that

a dangerous condition did exist. The alarm can be silenced

at any time by pressing the reset key. After the temperature

returns to normal, the system can be reset by pressing the

reset key twice. The system cannot be reset while the tem-

perature is outside the setpoints. The alarm module can be

panel mounted, or installed in a standard 4 x 4 electrical wall

box (supplied).
Use of the Series LF460 Aqua Sentry II Alarm System, along

with a electrically actuated valve, helps assure requirements

are met to maintain delivery temperature below (or above) a

certain temperature. (Typical of domestic water systems in

health care and nursing facilities).

Description

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SERIES LF460 ALARM, MODEL LF4600150

Temperature Alarm System

Technical Instructions

IS-P-MV460AS

I. Standard Operation of the Series LF460 Alarm

connected as shown in Figure 3 on page (3):

A. Display will read current temperature with sensor connected

and system in “safe” condition.

B. If sensor is improperly connected or if the sensor is properly

connected and there is an increase in the water temperature

above or below the setpoints of the thermostat:

1. Audio alarm will sound.

2. Display will flash.

3. Current temperature will be displayed.

4. Valve will close.
If condition 1-B occurs, press RESET key twice.
A. If the sensor is properly connected and a dangerous condi-

tion exists, the circumstances described in I-B (2, 3, 4) will

persist.

B. If the sensor is improperly connected, the circumstances

described in I-B (2, 4) will persist.

C. If the sensor is connected properly, and the system is in a

safe condition:

1. Alarm will be silent.

2. Display will be on.

3. Current temperature will be displayed.

4. Valve will open.
II. To test the Series 460 alarm, press the keys marked

and “RESET” simultaneously.

A. Audio alarm should sound.
B. Display will flash.
C. Valve will close.
To terminate the audio alarm, press the “RESET” key and

release.
A. Audio alarm will turn off.
B. Display will continue to flash.
C. Valve will remain closed.
To terminate test condition, press “RESET” key again.
A. Display will stop flashing.
B. Temperature will be displayed.
C. Valve will open.

Mode of Operation

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4ʺ

2-3/16ʺ

4ʺ

K

Note: Position of mounting holes on utility box must match up with the

holes on Series 460 alarm front panel.

(Front)

(Right Side)

Figure 1—Dimensional Data

WARNING

!

Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use infor-

mation can result in death, serious personal injury,

property damage, or damage to the equipment.
Keep this Manual for future reference.

LEAD FREE

*

*The wetted surface of this product contacted by consumable

water contains less than 0.25% of lead by weight.

This manual is related to the following products: