Avtec M20H Installation Manual

OPERATORS MANUAL

This manual provides
Installation & Operating instructions for

MIST-A-FIRE
SYSTEM

NOTIFY CARRIER OF DAMAGE AT ONCE.

It is the responsibility of the consignee to inspect the
container upon receipt of same and to determine
the possibility of any damage, including concealed
damage. Avtec suggests that if you are suspicious
of damage to make a notation on the delivery re­ceipt. It will be the responsibility of the consignee to
file a claim with the carrier. We recommend that you
do so at once.

Manufacture Service/Questions 888-994-7636.

Information contained in this document is known to be
current and accurate at the time of printing/creation.
Unified Brands recommends referencing our product line
websites, unifiedbrands.net, for the most updated product
information and specifications.

P/N OMANUAL_MAF-02/07

1055 Mendell Davis Drive

Jackson, MS 39272

888-994-7636, fax [phone]

avtecind.com

I.
II.

III.

IV.

TABLE OF CONTENTS

GENERAL DESCRIPTION
INSTALLATION
A. General
B. Contractor Requirements
SEQUENCE OF OPERATION
A. General
B. Normal Operation
C. Trouble Conditions

1.0 Power Loss

2.0 Loss Of Water Pressure

3.0 Supervised Shut-Off Valve
D. Fire Condition
E. Diagnostic LED Indicators
F. Input/Output Capacities
G. Component Layout and Identification
H. Gas Delay Reset [GDRIIA]

1.0 General

2.0 Visual Indicators

2.1 Red LED [Fuel Off]

2.2 Amber LED [Fuel Reset]

2.3 Green LED [Fuel On]

3.0 Fire Condition

4.0 Resetting The Circuit

5.0 Input/Output Capacities
I. Gas Delay Reset [GDRIIB]

1.0 General

2.0 Visual Indicators

2.1 Red LED [Fuel Off]

2.2 Amber LED [Fuel Reset]

2.3 Green LED [Fuel On]

3.0 Battery Circuit

4.0 Fire Condition

5.0 Resetting The Circuit

6.0 Input/Output Capacities
ENGINEERING DATA
A. General

1.0 Pipe Size

2.0 Water Pressure

3.0 Volume Of Water [GPM]

4.0 Duct and Plenum Protection for Non-Water Wash Ventilators

4.1 Plenum

4.2 Exhaust Duct

4.3 Additional Sprinklers

5.0 Pipe Sizing Guide

6.0 Sprinkler Data

6.1 Temperature Rating & Frame Color

6.2 Angle of Deflection

6.3 Orifice Size

6.4 Material & Finish

7.0 Sprinkler Locations

7.1 Canopy Hood

7.2 Backshelf Hood

7.3 Exhaust Duct and Plenum

7.4 Fryers

7.5 Ranges, Griddles, Hot Tops and Hot Plates

7.6 Salamander Broiler

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7.7 Upright Broiler

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V.
VI.

VII.
VIII.

7.8 Tilting Braising [Fry] Pan

7.9 Conveyor Broiler

7.10 Broilers [Gas, Electric and Solid Fuel]

7.11 Ranges, Griddles, Hot Tops

7.12 Ranges, Griddles, Hot Tops w/Overshelf Salamander Broiler

8.0 Test Valve Placement

9.0 Control Panel Equivalent Pipe Length

10.0 Parts List
MAINTENANCE
SYSTEM TESTING
A. General
B. Certification and Start-Up Report
QUICK REFERENCE VISUAL INDICATOR TROUBLE GUIDE
WARRANTY

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I.GENERAL DESCRIPTION

Water spray systems used for extinguishing cooking
equipment [grease] fires are recognized by the National
Fire Protection Association's (NFPA) Standards 13 and

96.

The Mist-A-Fire system is a water spray system that
includes sprinklers to extinguish a fire.

Note: The word "sprinkler" is used in this document
to indicate either a Listed Sprinkler or a Listed
Automatic Spray Nozzle. The specifications for
sprinklers are given in Section

All plumbing within the canopy is pre-piped chrome
plated or stainless steel where exposed.
Interconnection from the building sprinkler system to
the Mist-A-Fire Control Panel and from the Control
Panel to the ventilator are to be made by the Sprinkler
Contractor.

The Mist-A-Fire Control Panel is Listed by Underwriters
Laboratories Inc. (UL) as an Attachment to Sprinkler
Systems as shown in the UL Fire Protection Equipment
Directory. The Panel complies with the following
specification:

NFPA 72: National Fire Alarm Code

All support plumbing and electrical components for the
Mist-A-Fire System are located within the Mist-A-Fire
Control Panel or Energy Distribution System. The
panel should be located in an accessible area

The Mist-A-Fire System is to be used in a building with
a "wet" sprinkler system and installed in accordance
with NFPA 13.

It is suggested that prior approval for installation be
obtained from the Authority Having Jurisdiction.

IV.,6.0.

.

II.INSTALLATION

A. General

Water pipes up to and including the sprinklers for
cooking equipment surface protection, plenum
protection [behind filter banks] and duct protection
at the duct collar are installed by AVTEC during
ventilator construction. Additional duct protection is
usually installed at the job site.
Installation at the job site should be handled by the
Sprinkler Contractor.

The local district office of Grinnell Fire Protection
Systems may also be contacted. They can handle
the contracting and entire installation. The
telephone number for the local district office can be
found in the Yellow Pages under "Sprinklers-

Automatic Fire Systems", with over 70 locations
across the United States and Canada.

B. Contractor Requirements

Refer to the AVTEC blueline drawing for your
specific project. All connections are shown under:

MIST-A-FIRE ELECTRICAL CONTRACTOR
REQUIREMENTS [NOTES: ME1A, ME1B,
ME2] AND MIST-A-FIRE SPRINKLER
CONTRACTOR REQUIREMENTS [NOTES:
MC1, MP1, MP2, MP3, MP4, MP5, MP6,
General Notes]

III. SEQUENCE OF OPERATION

A. General

This is a guide to the operation and testing of the
Mist-A-Fire Control Panel. Personnel who are
responsible for the operation and maintenance of
the system should be familiar with the Panel and all
of the detectors and alarm devices interfaced with it.
Installations vary greatly from site to site, therefore,
it is necessary for the operator to know what to
expect from his particular system.

B. Normal Operation

When power is applied and all monitored circuits
are in their normal operating condition, the green
Light Emitting Diode [LED] will be illuminated and
the Liquid Crystal Display [LCD] will read, "NORMAL
OPERATION".

C. Trouble Conditions

A Trouble Condition occurs when a monitored
circuit detects a condition which may prevent the
Mist-A-Fire System from properly reacting to a fire.
A Trouble Condition should be corrected as soon as
possible. Whenever a Trouble Condition occurs, an
alarm horn will sound [which can be silenced by
pressing the MAF Horn Silence Switch] and the
Trouble Relay contacts [TB-7] will switch.

1.0 Power Loss
If the power supply is interrupted the amber LED will
illuminate, an alarm will sound and the display will
read "TROUBLE POWER LOSS". The alarm can
be silenced by pressing the MAF Horn Silence
Switch, but the amber LED will remain lit, the
display will continue to display "TROUBLE POWER
LOSS" and the TB-7 contacts will remain in the
Trouble position. When power is restored, the
system will return to its Normal Operation condition.

2.0 Loss of Water Pressure
If the water pressure drops below thirty pounds per
square inch [30 psi] and the system is equipped with
the low pressure switch, the amber LED will
illuminate, an alarm will sound and the display will
read "TROUBLE PRESSURE LOW". The alarm
can be silenced by pressing the MAF Horn Silence
Switch, but the amber LED will remain lit, the
display will continue to read "TROUBLE

- 1 -

PRESSURE LOW' and the TB-7 contacts will
remain in the Trouble position. When pressure
returns above 30 psi, the system will automatically
return to the Normal Operation condition.

3.0 Supervised Shut-off Valve
If the supervised shut-off valve is closed, the amber
LED will illuminate, an alarm will sound, fuel will
shut OFF, and the display will read, "TROUBLE
VALVE CLOSED". The alarm can be silenced by
pressing the MAF Horn Silence Switch, but the
amber LED will remain lit, the display will continue to
display "TROUBLE VALVE CLOSED" and the TB-7
contacts will remain in the Trouble position. When
the valve is fully opened, the system will
automatically return to the Normal Operation
condition.

NOTE: If the system is equipped with both the

optional Low Pressure Switch and the Supervised
Shut-off Valve, the amber LED will illuminate, the
horn will sound, the Trouble Relay contacts [TB-7]
will switch to the Trouble position and the LCD will
alternate between "TROUBLE PRESSURE LOW"
and "TROUBLE VALVE CLOSED". Pressing the
Horn Silence Switch will turn OFF the alarm.

Illuminates when the MAF II Horn

Silence Switch is pressed.

D-22 GREEN
Illuminates when the 120vac power
supply is energized.

D-24 GREEN
Illuminates when the MAF II Supervised
Shut-off Valve is open [circuit closed].

D-25 GREEN
Illuminates when the MAF II Water

Flow Switch is not actuated [circuit

closed].

D-26 GREEN
Illuminates when the MAF II Water

Pressure Switch is above 30 psi.

[circuit closed].

D-32 RED
Illuminates when the battery is being

charged.

D. Fire Condition

A fire condition is detected when water flows
through the system [actuating the Water Flow
Switch] as a result of either an activated sprinkler or
an open test valve. In order to avoid nuisance
actuation, there is an adjustable delay built into the
system. When the Water Flow Switch is actuated,
the red LED will illuminate, the display will flash
"FIRE", the alarm will sound, fuel will shut OFF, and
the Fire Relay contacts [TB-8] will switch. The
alarm CANNOT be silenced. The panel will remain
in Fire Condition as long as water continues to flow
through the Water Flow Switch. When the flow of
water has stopped [either as a result of closing the
test valve or closing the Supervised Shut-off Valve]
the fire condition will automatically clear itself.

NOTE: By closing the Supervised Shut-off Valve,

the system will be put into a Trouble Condition.
[See Section III. C. 1.2]

E. Diagnostic LED Indicators

D-12 GREEN
Illuminates when the MAF II horn is
energized.

D-15 RED
Illuminates when the Water Flow

Switch is activated.

D-17 RED

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F. Input/Output Capacities

TB-1 1-Line Hot
2-Line Neutral
3-Mech. Ground

TB-2 * 1-Switched Hot
* 2-Neutral
* 3-Switched Hot
* 4-Neutral
* 5-Switched Hot
* 6-Neutral

TB-3 * 1-Switched Hot
* 2-Neutral
* 3-Switched Hot
* 4-Neutral
* 5-Switched Hot
* 6-Neutral

TB-4 * 1-Switched Hot
* 2-Neutral
* 3-Switched Hot
* 4-Neutral

TB-5 * 1-Switched Hot
* 2-Neutral
* 3-Switched Hot
* 4-Neutral
* 5-Switched Hot
* 6-Neutral

TB-6 * 1-Switched Hot
* 2-Neutral
3-Switched Hot
4-Neutral
5-Neutral
6-Hot

TB-7 1-NC
2-C
3-NO
4-NC
5-C
6-NO

TB-8 1-NC
2-C
3-NO
4-NC
5-C
6-NO

TB-9 * 1-Line Hot
* 2-Switched Hot
* 3-Line Hot
* 4-Switched Hot
* 5-Line Hot
* 6-Switched Hot

TB-10 1-Line Hot
2-Switched Hot
3-Line Hot
4-Switched Hot
5-Line Hot
6-Switched Hot

TB-11 * 1-Detergent
* 2-Probe
3-Positive
4-Negative

TB-12 1-Positive
2-Negative
3-Positive
4-Negative

















Incoming Power Supply 120vac, 15 amps. 60 Hz




 Wash Solenoid x 1, 120vac, 1.5 amps max.

 Wash Solenoid x 2, 120vac, 1.5 amps max.

 Wash Solenoid x 3, 120vac, 1.5 amps max.


 Wash Solenoid x 4, 120vac, 1.5 amps max.

 Wash Solenoid x 5, 120vac, 1.5 amps max.

 Wash Solenoid x 6, 120vac, 1.5 amps max.


 Wash Solenoid x 7, 120vac, 1.5 amps max.

 Wash Solenoid x 8, 120vac, 1.5 amps max.


Detergent Pump, 120vac, 1.5 amps max.




PAWS alarm Horn, 120vac, 16 ma. max.




Fan Contactor, 120vac, 1.5 amps max.




Spare Output [PAWS] 120vac, 1.5 amps




Spare Output ]MAF ] 120vac, 1.5 amps




Auxiliary



Power Tap



Trouble Dry Contacts [MAF ] 1.5 amps @ 28vdc/120vac

Trouble Dry Contacts [MAF ] 1.5 amps @ 28vdc/120vac

Fire Dry Contacts [MAF ] 1.5 amps @ 28vdc/120vac

Fire Dry Contacts [MAF ] 1.5 amps @ 28vdc/120vac

PAWS Supervised



Valve Switch



PAWS Manual



Fire Pull Switch



PAWS Automatic



Fire Switch



MAF  Water



Flow Switch



MAF  Water



Pressure Switch



MAF  Supervised



Valve Switch



20vdc, 2 milliamps




MAF  Horn, 12vdc, 1.5 amps




Battery, 12v, 5A Hours




Auxiliary Power Tap, 19vdc, 0.5 amps




120vac, 8 amps max.


















120vac, 25 milliamps

120vac, 25 milliamps

120vac, 25 milliamps

12vdc, 25 milliamps

12 vdc, 25 milliamps

12vdc, 25 milliamps

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