Garland Ongard OG30 User Manual

09/18

ATTENTION: Please take a few minutes to thoroughly read this user guide which should be
saved for future reference and passed on to any subsequent owner.

Heat Alarm with Hush User Guide

240V AC 50Hz, 10mA, 9V battery back up, single and or multiple
station (18 units maximum), 57°C temperature rating

Model: OG30

Contents of This User Guide

1. Product Features 3

2. Product Specifications

4

3. Installation Instructions

5

4. Locations To Avoid

8

5. Wiring Instructions

8

6. Mounting Instructions

11

7. Operation And Test

12

8. Alarm Nuisance and HUSH

14

9. Troubleshooting

15

10. Battery Replacement

16

11. Cleaning Your Alarm

17

12. Limitations Of Heat Alarms

17

13. Good Safety Habits

18

14. What To Do When the Alarm Sounds

19

15. Warranty & Contact Details

20

Thank you for purchasing this heat alarm. It is an important part of
your family’s home safety plan. You can trust Garland OnGard to
provide the highest quality safety products.

Please take a few minutes to thoroughly read this user guide, and
save it for future reference. Teach children how to respond to the
alarms, and that they should never play with the unit.

If you have any enquiries regarding this product please visit our website:
www.garlandcables.com.au

3

1. Product Features

Model OG30 is powered from a 240V AC supply, and has a DC
battery back-up source. AC/DC heat alarms offer added protection
in the event of a power failure. Unique power connector prevents
interconnecting with incompatible heat alarms, CO alarms, smoke
alarms, or security systems. The heat alarms can be interconnected
with up to 17 other Garland OnGard models as set out in Section 2
– Product Specifications. Do not connect to any other type or model
of smoke, CO, or heat alarm.

• Hush feature silences unwanted alarms for up to 10 minutes

• Alarm memory identifies which alarm has activated

• Optional use tamper-resistant feature serves as a safeguard against
tampering

• The heat alarm will sound a short beep about once every
40 seconds if the battery is low

• Multi-purpose green and red LEDs indicate that the heat alarm is
connected to the AC supply, is working normally, or is in alarm

• Loud alarm sounder – 85 dB

• Test button checks heat alarm operation

WARNING! THIS HEAT ALARM IS NOT DESIGNED AS AN
EARLY WARNING TO A FIRE BECAUSE IT DOES NOT DETECT
SMOKE. SEE LIMITATIONS OF THE HEAT ALARM IN SECTION
12 FOR DETAILS.

WARNING! REMOVAL OF HEAT ALARM BATTERY AND
DISCONNECTING OR LOSS OF AC POWER WILL RENDER THIS
UNIT INOPERATIVE.

DO NOT TRY TO REPAIR THIS HEAT ALARM YOURSELF.

4

2. Product Specifications

Model OG30

Electrical Rating 240V AC 50HZ, DC battery back up

(9V battery)

Interconnecting Smoke
and Heat Alarms

Up to any combination of 17 other alarm
models. Compatible Models include:

OG10, OG20, OG20LL, OG30.

Temperature Rating

57°C

Maximum Ambient
Temperature Rating

37.8°C

Operating Temperature

0°C TO 40°C

Operating Humidity

Up To 93% Humidity (Non-Condensing)

Recommended
Coverage

50m

2

Recommended
Spacing

5.3m

Maximum Distance
From Wall

7.7m

Maximum Ceiling
Height

6m

5

3. Recommended Locations

This heat alarm must only be wired to a 240V AC 50Hz sine wave
current supply.

Heat alarms give an audible warning when the temperature at the
alarm reaches 57°C. Heat alarms are ideal for kitchens, garages,
cellars, boiler rooms, attics and other areas where there are normally
high levels of fumes, smoke or dust which preclude the use of smoke
alarms due to the risk of false alarms. Laws on smoke alarms vary from
state to state and you should be aware of what the requirements are
in the state you live - for more information please refer to your local fire
emergency services.

Garland OnGard recommends heat alarms be

installed in addition to legislated smoke alarms in areas where there
might be high air circulation or in areas such as kitchens, bathrooms or
garages where smoke alarms would be subject to higher false alarms.

If, however, the design of the dwelling does not comply with modern fire
safety standards, or if factors such as the presence of several young
children, elderly occupants or disabled people, or smokers, the use of
portable heaters or solid fuel fires during the night, or the use of electric
blankets, particularly by the elderly,

Garland OnGard advises that

additional detection devices, installed within rooms, may be necessary.

The most favourable mounting location for a heat alarm is on the ceiling
and in the centre of the room. At this location, the alarm is closest to
all areas of the room. EXCEPTION: When the mounting surface might
become considerably warmer or cooler than the room, such as a poorly
insulated ceiling, below an unfinished attic, or an exterior wall. In these
cases the alarm should be mounted on an inside wall.

HEAT ALARM

PHOTOELECTRIC ALARM

IONISATION ALARM

ATTIC OFFICE

BEDROOM BEDROOM

LIVING ROOM KITCHEN

UTILITY/
LAUNDRY

GARAGE

• If the alarm cannot be

located in the centre of
the room, an off-centre
location can be used
on the ceiling. When
off-centre mounting an
alarm on the ceiling,
locate it at a minimum of
300mm from the side wall
(FIGURE 2A and 2B).

FIGURE 1

6

3. Recommended Locations

FIGURE 2A

CEILING

PEAK CEILING

300mm

MINIMUM

600mm

MINIMUM

MAXIMUM

SIDE WALL

BEST

PLACEMENT

DO NOT INSTALL

DO NOT INSTALL

DEAD AIR

NOT IN THIS AREA

ANYWHERE IN THIS AREA

500mm

1000mm

DEAD AIR

ACCEPTABLE

PLACEMENT

100mm

• If a ceiling mounting location is not possible, the next logical
location for mounting heat alarm is on the side wall. When
mounting the alarm on the wall, use an inside wall with the top
edge of the alarm at a minimum of 100mm and a maximum of
600mm below the ceiling. (see FIGURE 2A)

7

3. Recommended Locations

• When mounting the alarm on a sloping ceiling, it should not exceed
1500mm away from the apex. The spacing of additional alarms, if
any, should be based on a horizontal distance measurement, not
a measurement along the slope of the ceiling (see FIGURE 2B)

CEILING

PEAK CEILING

MINIMUM

600mm

MINIMUM

MAXIMUM

SIDE WALL

BEST

PLACEMENT

DO NOT INSTALL

DO NOT INSTALL

DEAD AIR

NOT IN THIS AREA

ANYWHERE IN THIS AREA

500mm

1000mm

DEAD AIR

ACCEPTABLE

PLACEMENT

100mm

FIGURE 2B

DEAD AIR

DO NOT INSTALL

SLOPED CEILING

NOT IN THIS AREA

500mm

ANYWHERE IN THIS AREA

1000mm

• In rooms with open joists or beams,all ceiling mounted alarms shall

be located on the bottom of such beams. (See FIGURE 2C )

• Alarms installed on an open-joist ceiling shall have the smooth
ceiling spacing reduced to no more than half of the listed spacing
when measured at right angles to the solid joist. (See FIGURE 2C)

FIGURE 2C