Denlar Designer Series Service & Testing Manual

Denlar Designer Series Service & Testing Manual

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Automatic Fire Suppression Range Hood

READ AND SAVE THESE INSTRUCTIONS

WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:
1.
Use this unit only in the manner intended by the manufacturer. If you have questions, contact the manufacturer at the address or telephone number
listed on the front cover of this manual.
2.
Before servicing or cleaning unit, switch power off at service panel and lock the service disconnecting means to prevent power from being switched
on accidentally. When the service disconnecting means can-not be locked, securely fasten a prominent warning device, such as a tag, to the ser-
vice panel.
3.
Installation work and electrical wiring must be done by a qualified person(s) in accordance with all applicable codes and standards, in-cluding fire-
rated construction codes and standards.
4.
Sufficient air is needed for proper combustion and exhausting of gases through the flue (chimney) of fuel burning equipment to prevent backdraft-
ing. Follow the heating equipment manufacturer's guideline and safety standards such as those published by the National Fire Protection Associa-
tion (NFPA), and the American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE), and the local code authorities.
5.
When cutting or drilling into wall or ceiling, do not damage electrical wiring and other hidden utilities.
6.
To reduce the risk of fire or electric shock, do not use this range hood with an additional speed control device.
7.
Ducted fans must always be vented to the outdoors.
8.
To reduce the risk of fire, use only metal ductwork.
9.
Use with approved wiring only.
10. This unit must be grounded.
TO REDUCE THE RISK OF A RANGE TOP GREASE FIRE:
1.
Never leave surface units unattended at high settings. Boilovers cause smoking and greasy spillovers that may ignite. Heat oils slowly on low or
medium settings.
2.
Always turn hood ON when cooking at high heat or when flambéing food (i.e. Crepes Suzette, Cherries Jubilee, Peppercorn Beef Flambé).
3.
Clean ventilating fans frequently. Grease should not be allowed to accumulate on fan or filter.
4.
Use proper pan size. Always use cookware appropriate for the size of the surface element.
TO REDUCE THE RISK OF INJURY TO PERSONS IN THE EVENT OF A RANGE TOP GREASE FIRE, OBSERVE THE FOLLOWING:*
1.
SMOTHER FLAMES with a close-fitting lid, cookie sheet, or metal tray, then turn off the burner. BE CAREFUL TO PREVENT BURNS. If the flames
do not go out immediately, EVACUATE AND CALL THE FIRE DEPARTMENT.
2.
NEVER PICK UP A FLAMING PAN — You may be burned.
3.
DO NOT USE WATER, including wet dishcloths or towels - violent steam explosion will result.
4.
Use an extinguisher ONLY if:
A. You know you have a Class ABC extinguisher and you already know how to operate it.
B. The fire is small and contained in the area where it started.
C. The fire department is being called.
D. You can fight the fire with your back to an exit.
* Based on "Kitchen Fire Safety Tips" published by NFPA.
!
CAUTION
1.
For general ventilating use only. Do not use to exhaust hazardous or explosive materials and vapors.
2.
To avoid motor bearing damage and noisy and/or unbalanced impellers, keep drywall spray, construction dust, etc. off power unit.
3.
For best capture of cooking impurities and performance of fire extinguisher, your range hood should be mounted so that the bottom of the hood is
20-26" above the cooking surface.
4.
Please read specification sheets for further information and requirements.
5.
To reduce risk of fire and to properly exhaust air, be sure to duct air outside – Do not vent exhaust air into spaces within walls or ceilings or into at-
tics, crawl spaces, or garages. La PRUDENCE - Pour réduire le risque de feu et correctement épuiser l'air, soyez sûrs à l'air de conduit à l'extérieur
– ne déchargent pas d'air épuisé dans les espaces dans les murs ou les plafonds ou dans les greniers, crawlent des espaces, ou des garages.
Service & Testing Manual
20 Denlar Dr. Chester, CT 06412
(860) 526-9846 Fax: (860) 526-9585
sales@denlarhoods.com www.DenlarHoods.com
Series

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Summary of Contents for Denlar Designer Series

  • Page 1: Read And Save These Instructions

    Service & Testing Manual Series Automatic Fire Suppression Range Hood 20 Denlar Dr. Chester, CT 06412 (860) 526-9846 Fax: (860) 526-9585 sales@denlarhoods.com www.DenlarHoods.com READ AND SAVE THESE INSTRUCTIONS WARNING TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING: Use this unit only in the manner intended by the manufacturer.
  • Page 2 (860) 526-9846 It’s a good idea to record the model and serial number(s) of your Denlar Unit and the date you received it in the Service Manual. Our service Please take a moment to department uses this information, along with the manual number, to fill out the model and serial provide help for the specific unit you installed.
  • Page 3: Table Of Contents

    Service & Testing Manual v.1.2 TABLE OF CONTENTS What is a Denlar? Theory of Operation Servicing the Unit Inspection Intervals System Inspection Procedure Cleaning Inspecting the Nozzles After a Discharge Testing and Verification Testing Suppression and Alarm System- Test Tank...
  • Page 4: What Is A Denlar

    The units are delivered from the factory ready to install and function. No servicing is required at initial installation. The Designer Series Range Hood is comprised of a painted or stainless Theory of Operation steel ventilation hood; a wet chemical suppression system including a mechanical fusible link chain to control discharge and outputs for audible and fire alarms.
  • Page 5 Service & Testing Manual v.1.2 top reach the links and as the temperature of the glass tubes quickly reach 250 Deg F, one or both of the glass tube breaks, and separates causing the tension in the spring to pull the actuator paddle to press on the tank valve The tank assembly in the De- assembly.
  • Page 6: System Inspection Procedure

    (860) 526-9846 Periodic Servicing The Denlar Range Hood System should be regularly inspected and ser- viced to insure proper operation and readiness for a fire event. Regular cleaning of the range hood interior should be conducted and the system should be inspected regularly.
  • Page 7: Inspecting The Nozzles

    Service & Testing Manual v.1.2 2. Verify the tank pressure gauge is indicating pressure in the Green range, (100 psi nominal). Low pressure in the tank indicates a leak and it should be serviced immediately; 3. For maintenance personnel, check to see that the range operates nor- mally;...
  • Page 8: After A Discharge

    Once the area is cleaned up, the tank assembly should be serviced by a Unit! qualified Denlar service technician and reinstalled in the unit. Multiple unit installations may elect to have a spare charged tank assem- bly on hand to permit quick restoration of the range hood and allow the range to be put back into service.
  • Page 9: Testing And Verification

    Service & Testing Manual v.1.2 Testing and Verification Testing Suppression & Alarm System - Using the Test Tank Assembly CAUTION: The optional test tank assembly (purchased separately) is provided as a ‘dry’ system, i.e., no wet chemical, only charged with nitrogen and sup- Discharge of the suppressant plied with test links in place of the glass tube links.
  • Page 10 (860) 526-9846 Testing Suppression & Alarm System - Using the Standard Tank Assembly Should a test be required without obtaining the optional test tank assem- bly, the supplied suppression tank may be used with minor modification. Be aware that the use of this tank assembly will result in the discharge CAUTION: of the suppressant fluid on the surface of the stove.
  • Page 11 Service & Testing Manual v.1.2 When the test link is cut, the valve assembly should be actuated by the spring loaded paddle. Verify the following: 1. Discharge of nitrogen through both nozzles for approximately 20-30 seconds; 2. The audible alarm will sound (90 dB); 3.
  • Page 12: Balloon Testing

    4. Replace the tank assembly and restore the hood to normal operation. Testing of all optional audio/visual alarms The Designer Series of Range Hoods include both an audible and a remote alarm connection. Both these alarms are integrated into the range hood and suppressant tank assembly and do not have means to independently test them.
  • Page 13: Testing The Remote Manual Pull Station

    Testing the Remote Manual Pull Station The manual pull station option may be functionally tested as part of an in service inspection process. Be advised that with the Designer Series Units, this test will cause discharge of the system and accordingly, the...

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