Larkin Auto Fan Control Скачать руководство пользователя страница 7 | Manualshive

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7

Micro Switch:

The Larkin AFC requires a Fire Suppression System Micro-Switch connection. The Micro-Switch

should be field wired from the Fire Suppression System to the Control Box connecting the Common (C) lead from
the Micro-switch to the Fire Switch Common (FSC) terminal in the Control Box. Connect the Normally Closed
(NC) lead from the Micro-switch to the Fire Switch Normally Closed (FSNC) terminal in the Control Box. Isolate
the Normally Open (NO) lead from the Micro-switch.

WARNING: DO NOT APPLY VOLTAGE THROUGH

MICRO-SWITCH. THIS WILL CAUSE DAMAGE TO THE CONTROL BOARD.

(See micro switch mounting options on page 14)

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Содержание Auto Fan Control

Страница 1: ...tch Enclosure may be recess mounted with optional trim ring Switches with LED indicator lights mounted on enclosure door for system operation Exhaust and Make Up Air MUA fan s are interlocked If hood fire suppression system is activated the lights and MUA fan s shut down The Exhaust fan s will continue to operate Temperature sensor s factory mounted in hood s Exhaust and MUA fan starter s 3 Ph or ...

Страница 2: ...d AFC the Control Box will be housed in a 12 x 22 x 6 stainless steel enclosure and should be secured to a fixed wall near the exhaust hood s it controls Fig 1 Enclosure may be recess mounted with optional trim ring see Figure 2 Fig 1 Fig 2 ...

Страница 3: ...o Control Box for fan s See wiring diagram F 1 or 3 Phase wired from Control Box to fan s See wiring diagram G 1 or 3 Phase power if Tempered MUA is provided wired from breaker panel to Tempered MUA unit Note If Tempered MUA is provided the input power wiring for the Tempered MUA unit must be connected directly from the breaker panel G and a separate Run Stop control circuit connected from the Con...

Страница 4: ...ng sensor between a light and end of the hood may be necessary on shorter hoods CAUTION If sensor is located too close to a light fixture the heat generated could activate the system The sensor s should be centered between lights Wiring Instructions The Larkin AFC components are all prewired The field wiring required to connect the Control Box to the hood s and breaker panel should be made in acco...

Страница 5: ... operate See Heated MUA unit wiring diagram Note The input power wiring for Tempered MUA unit must be pulled from the breaker panel directly to the Tempered MUA unit Only control wiring should be connected from the AFC control box to the Tempered MUA unit Field Wiring Requirements for Control Panel Control Circuit Field wire 120 VAC 1 Phase 15 AMP to the Control Panel terminals Control Hot CH Cont...

Страница 6: ...nsor terminals S1 located in the Control Box 22 AWG Min For a system controlling more than one hood connect the second hood sensor to terminals S2 the third sensor to terminals S3 and the fourth sensor to terminals S4 Sensors must be wired separately The corresponding Sensor Dip Switch must be in the ON position for every sensor connected to the terminal strip If a dip switch is in the on position...

Страница 7: ...lead from the Micro switch to the Fire Switch Common FSC terminal in the Control Box Connect the Normally Closed NC lead from the Micro switch to the Fire Switch Normally Closed FSNC terminal in the Control Box Isolate the Normally Open NO lead from the Micro switch WARNING DO NOT APPLY VOLTAGE THROUGH MICRO SWITCH THIS WILL CAUSE DAMAGE TO THE CONTROL BOARD See micro switch mounting options on pa...

Страница 8: ...l to the correct terminals in the Control Box for each fan being controlled Fan Output Power From Contactor s or Starter s Field wire output power to proper fan from contactor s or starter s terminals T1 and T2 1 Phase or T1 T2 and T3 3 Phase Check rotation of fan s Note Exhaust fan s will move some air in reverse See rotation arrow on fan Changing rotation may be accomplished by reversing any two...

Страница 9: ...wiring in same conduit as input power circuits high voltage NOTICE Remove jumper from terminals R and G in the Tempered MUA unit Note The input power wiring for the Tempered MUA unit must be pulled directly from the breaker panel to the Tempered MUA unit Shunt Trip Breaker Connection Field install wiring from the Control Box terminal Shunt Trip Hot STH to the trip connections on the shunt trip bre...

Страница 10: ...ed next to the exhaust hood s it controls See Pg 2 Are two separate circuits 120VAC 15AMP control and 120VAC 15AMP hood lights connected from breaker panel to Control Box per NEC See Pg 5 Are hood lights connected from the Control Box to the hood light junction box per NEC See Pg 5 Are hood sensor s connected from hood s to Control Box One sensor per hood or hood section Check dip switch position ...

Страница 11: ...ing equipment should be off and fan s should not be operating If the fan s and light s come on with the switches in the OFF position the temperature sensor in the hood has detected a temperature rise If only the Exhaust fan s come on immediately check for proper connection of Fire System Micro Switch See Pg 7 or check that the Fire Suppression system is not in the discharged position With the fan ...

Страница 12: ... s and provide 120V for shunt trip breaker s in Fire Mode To conduct this test simply trip the fire suppression Micro Switch to simulate Fire Mode The Exhaust fan s should continue to run the light s and MUA fan s should shut off the Auxiliary Contacts should change state and 120V should be provided for shunt breaker s After testing place the Micro Switch back to the normal position The light s an...

Страница 13: ...pt adjusting controller before contacting customer support at 800 322 4036 The AFC system is designed to shut down the light s and supply fan s and continue to run the exhaust fan s in the event of fire and activate two Normally Open Normally Closed NO NC spare dry contacts may be used for building alarm horn strobe etc Terminal STH Shunt Trip Hot will also provide 115 VAC for shunt trip breaker i...

Страница 14: ...14 See Pg 7 ...

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