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AWS Distech DAHU Level 2 Script V1.4
AWS Distech DAHU Level 2 Script V1.4
Danny kuby

AWS Distech DAHU Level 2 Script V1.4

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Free AWS Distech DAHU Level 2 Script V1.4 Checklist

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Title Page

  • Location

L-2 Sheet

  • DATE:

  • TECHNICIAN:

PROJECT

  • Job Name:

  • Job Number:

  • Job Location:

  • Installing Contractor:

UNIT INFORMATION

  • Manufacturer:

  • Type:

  • Model #:

  • Lower Serial #:

  • Upper Serial #:

  • Equiptment Tag:

  • Equiptment Rated Voltage:

  • Main Pwr: UPS Pwr: Lighting and Recp. Pwr:

  • Max Breaker Size:

(Step 1) INSTALLATION

  • Check unit exterior for visual damage. Dents, scratches, broken hardware

  • Unit properly supported

  • Ensure equipment is level

  • Access doors are operable and sealed

  • Cabinet doors checked for proper adjustment

  • Ensure no labels are missing, incluiding exterior Arc Flash labeling

  • Inspect for scratches, dents, and rust on exterior of equipment. Note and report all damage

  • Inspect for scratches, dents, and rust on interior of equiptment. Note and report all damage

  • Unit is properly anchored to concrete pad per seismic specification

  • Top section is set, with all split brackets bolted and torqued per install guide

  • Top/bottom section split surfaces properly sealed per install guide

  • Lifting lugs have been removed from top and bottom sections

  • All compartments are free from any sign of mold or water intrusion

  • Duct connections are properly mounted and sealed

  • Verify interior of unit is clean and is clear of debris, dirt and loose hardware

  • Verify Electrical and Control Cabinets are Clean, Vacuum cabinet and top of components

  • Insulation undamaged on evaporative cooler (Leave Drain line coverings until level 3 is complete)

  • Verify all shipping materials and covers have been removed (Leave Drain line coverings until level 3 is complete)

  • Drain/Supply lines are properly routed and secured to unit

  • Check Light Switch for damage

  • Check Receptacle damage

  • Verify Megnahelic gauge, verify scale and calibrate to ZERO

  • Verify Outdoor Air sensor is brought out into outdoor air plenum and installed

  • Verify labels on Receptacle, Light switch and magnehelic

  • Verify control cabinet door devices are labeled

  • 480 VAC circuits have been properly routed/terminated by others

  • UPS 120 VAC circuits have been properly routed/terminated by others

  • Light/Recp. 120 VAC circuits have been properly routed/terminated by others

  • Note all devices installed by others and completion of install (If Applicable)

  • Outdoor Air Sensor 1 and 2

  • Return Air Actuator 1 Thru 4

  • Outdoor Air Actuator 1 Thru 4

  • All factory defects and missing parts completed and installed

Mixed Air Compartment Lower Section

  • Verify Pre filters are 2" DEEP PLEATED FILTER MERV 8

  • Verify Final Filters are a 22" DEEP BAG FILTER MERV 13

  • Air filters in proper condition/Verify installed correctly

  • Filter rack is secure with no loose hardware

  • Verify tubing routed and secured properly, not kinked

  • Area around media in M/A compartment sealed properly

  • Verify all media is in place and correct direction

  • Verify M/A Temp sensor routed and secured properly

  • Verify all Junctions and devices are labeled

  • Desiccant bags/Protective floor matting has been removed

  • Verify Area is floor is clean and free of debris

Mixed Air Compartment Upper Section

  • Verify Pre filters are 2" DEEP PLEATED FILTER MERV 8

  • Verify Final Filters are a 22" DEEP BAG FILTER MERV 13

  • Air filters in proper condition/Verify installed correctly

  • Filter rack is secure with no loose hardware

  • Verify tubing routed and secured properly, not kinked

  • Area around media in M/A compartment sealed properly

  • Verify all media is in place and correct direction

  • Verify M/A Temp sensor routed and secured properly

  • Verify all Junctions and devices are labeled

  • Desiccant bags/Protective floor matting has been removed

  • Verify Area and floor is clean and free of debris

EVAP Compartment Lower Section

  • Verify all plumbing connections are properly installed and tight

  • Verify showerheads are adjusted properly

  • Verify showerhead hardware is secured with no loose components

  • Remove dropstop and inspect front of media for damage,proper alignment

  • Install all winterized components

  • Set Topaz ball float to proper height and adjust mounting as needed

  • Set HL,OL, and LL to designed height per spec

  • Verify drain valve/actuator position,210VDC is correct and B side of actuator used

  • Verify Fill/Flush valve/actuator position is correct and B side of actuator is used

  • Verify Overflow installed correctly and adjust as needed

  • Verify stage valves have been adjusted properly per spec

  • Verify factory installed lower pump FSB is installed and routed and secured

  • Verify Upper exterior access door is bolted shut

  • Check backdraft dampers for proper operation and adjust weights as needed

  • Check for any binding in between the actuator and the Bypass damper. Verify all damper hardware is tight. Ubolts, damper jack shaft, etc

  • Manually operate Bypass dampers, Verify they close completely and spring return CLOSE

  • Manually spin fans, verify they spin freely with no resistance

  • Verify UV return line extends into sump a minimum of 8 inches

  • Verify circuit setter for UV light is adjusted per spec

  • Verify proper installation of Drain and fill valves/actuators

  • Check sump pan for debris and clean as necessary

  • Access doors for top and bottom checked for proper adjustment

  • Ensure all multi port block connectors are connected, and undamaged

  • Verify all components are labeled

  • Flow control valves

  • Circuit 1, 2, 3, 4

  • Flow proving switch

  • Constant Flow Valves

  • UV Light

  • Fill control valve

  • Drain control valve

  • Flush control valve

  • Float level sensors

  • MultiPort connectors

  • Spot leak detector

  • Remove desiccant bags and protective floor mats

  • Verify Area and floor is clean and free of debris

EVAP Compartment Upper Section

  • Verify all plumbing connections are properly installed and tight

  • Verify showerheads are adjusted properly

  • Verify showerhead hardware is secured with no loose components

  • Remove dropstop and inspect front of media for damage,proper alignment

  • Install all winterized components

  • Set Topaz ball float to proper height and adjust mounting as needed

  • Set HL,OL, and LL to designed height per spec

  • Verify drain valve/actuator position,210VDC is correct and B side of actuator used

  • Verify Fill/Flush valve/actuator position is correct and B side of actuator is used

  • Verify Overflow installed correctly and adjust as needed

  • Verify stage valves have been adjusted properly per spec

  • Verify factory installed Upper pump FSB is installed and routed and secured

  • Verify Upper exterior access door is bolted shut

  • Check backdraft dampers for proper operation and adjust weights as needed

  • Check for any binding in between the actuator and the Bypass damper. Verify all damper hardware is tight. Ubolts, damper jack shaft, etc

  • Manually operate Bypass dampers, Verify they close completely and spring return CLOSE

  • Manually spin fans, verify they spin freely with no resistance

  • Verify UV return line extends into sump a minimum of 8 inches

  • Verify circuit setter for UV light is adjusted per spec

  • Verify proper installation of Drain and fill valves/actuators

  • Check sump pan for debris and clean as necessary

  • Access doors for top and bottom checked for proper adjustment

  • Ensure all multi port block connectors are connected, and undamaged

  • Verify all components are labeled

  • Flow control valves

  • Circuit 1, 2, 3, 4

  • Flow proving switch

  • Constant Flow Valves

  • UV Light

  • Fill control valve

  • Drain control valve

  • Flush control valve

  • Float level sensors

  • MultiPort connectors

  • Spot leak detector

  • Remove desiccant bags and protective floor mats

  • Verify Area and floor is clean and free of debris

Supply AIr Section Lower

  • Interior access ladder splice plates installed and properly torqued

  • Access ladder is properly mounted to unit and functions as designed

  • Exterior access door is bolted shut with supplied hardware

  • Walkway grating is secure with no loose hardware

  • Pressure tubing for top and bottom has been connected and routed properly

  • Check for any binding in between the actuator and the SA damper. Verify all damper hardware is tight. Ubolts, damper joiner plates, etc

  • Manually operate Supply air dampers, Verify they close completely and spring return OPEN

  • Verify Supply air damper actuators are labeled

  • Fan motors Record the following:

  • Quantity: Model#: Voltage/PH/Hz: HP: RPM: FLA:

  • Connect Upper DP tubing between upper and lower level

  • Perform a leak test on DP tubing to ensure pressure holds Upper Pre filter

  • Perform a leak test on DP tubing to ensure pressure holds Upper Final filter

  • Perform a leak test on DP tubing to ensure pressure holds Lower Pre filter

  • Perform a leak test on DP tubing to ensure pressure holds Lower Final filter

  • Verify Temperature sensor Installed and labeled

  • Verify Humidity Sensor installed and labeled

  • Verify all connectors are tight on Molex or phoenix block and labeled

  • Verify All cables connecting to the molex or phoenix block are labeled

  • Access doors for top and bottom checked for proper adjustment

  • Fan protective screens are secure with no loose hardware

Supply AIr Section Upper

  • Interior access ladder splice plates installed and properly torqued

  • Access ladder is properly mounted to unit and functions as designed

  • Exterior access door is bolted shut with supplied hardware

  • Walkway grating is secure with no loose hardware

  • Pressure tubing for top and bottom has been connected and routed properly

  • Check for any binding in between the actuator and the SA damper. Verify all damper hardware is tight. Ubolts, damper joiner plates, etc

  • Manually operate Supply air dampers, Verify they close completely and spring return OPEN

  • Verify Supply air damper actuators are labeled

  • Fan motors Record the following:

  • Quantity: Model#: Voltage/PH/Hz: HP: RPM: FLA:

  • Verify Temperature sensor Installed and labeled

  • Verify Humidity Sensor installed and labeled

  • Verify all connectors are tight on Molex or phoenix block and labeled

  • Verify All cables connecting to the molex or phoenix block are labeled

  • Access doors for top and bottom checked for proper adjustment

  • Fan protective screens are secure with no loose hardware

Lower and Upper Section Interconnects

  • Verify proper Labeling of Inteconnect Whips

  • 120VAC Lighting Circuit Connected

  • 120VAC UV Light Cicuit connected

  • 480VAC Sump Pump Circuit connected

  • 480VAC Supply fan Circuit connected

  • Humidity 420ma circuit complete

  • Supply 420ma temp sensor complete

  • Purge Relay 24VAC coil set connected

  • SF 712 COMM set connected

  • SF712 Speed set connected

  • Molex blocks 47 sets connected

  • Route interconnects along tray to panel and secure properly

  • Supply motors have been Ohm'd out with MP in open position

CONTROLS CABINET

  • Verify all components are installed in the Controls cabinet

  • Check/Tighten all screw terminals

  • Tug test all wires in controls panel

  • Check that all devices are in place and labeled

  • Verify all drawings are located in cabinet

  • Verify Dip switches on controllers are set correctly Refer to Controls Drawing

  • Ensure all devices "installed by others" have been installed, wired correctly and labeled

  • Remove all desiccant bags, shipping material inside and debris metal shavings, screws, etc

MAIN POWER CABINET

  • Verify all components are installed in the power cabinet are correctly sized

  • Verify Main disconnect line side cables are terminated and torque marked

  • Check/Tighten all screw terminals

  • Tug test all wires in electrical panel

  • Proper grounding installed for components and unit

  • Check that all devices are in place and labeled

  • Set pump motor overloads and record setting

  • Verify Main disconnect selector rod does not interfere with operation of opening or closing the door when disconnect is OPEN or CLOSED

  • Motor Protectors have been set for proper load protection

  • Ensure all devices "installed by others" have been installed, wired correctly and labeled

  • Remove all desiccant bags, shipping material inside and debris metal shavings, screws, etc

  • SIGN OFFS

  • Technician:

  • Signature:

  • Date Complete:

  • Document Version 1.4

INTERNAL USE ONLY

IWO FORM INCLUDED WITH UNIT

  • Completed

  • Comments(Ie. Parts Arrival/Ordered Date, Date work completed)

ITEMS LISTED ON FORM

  • YES OR NO

ADDITIONAL HARDWARE NEEDED THAT ISN'T LISTED

  • Completed

  • Comments(Ie. Parts Arrival/Ordered Date, Date work completed)

IF ADDITIONAL PARTS ARE NEEDED, PLEASE LIST HERE AND COMPLETE AN NCR

  • YES OR NO

AWS Distech DAHU Level 2 Script V1.4
Danny kuby

AWS Distech DAHU Level 2 Script V1.4

Use this Template
The templates available in our Public Library have been created by our customers and employees to help get you started using SafetyCulture's solutions. The templates are intended to be used as hypothetical examples only and should not be used as a substitute for professional advice. You should seek your own professional advice to determine if the use of a template is permissible in your workplace or jurisdiction. You should independently determine whether the template is suitable for your circumstances.

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