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MANUFACTURED FOR:
MITSUBISHI ELECTRIC US, INC.
LAHN-1, LAHN-2, LAHN-3, and LAHN-4 Low Ambient Hoods
for use with:
®
CITY MULTI
N-Generation Y-Series Outdoor Units
INSTALLATION MANUAL
For safe and effective use of this kit, please read this installation manual thoroughly before installing these components.
The low ambient kit allows full cooling capacity down to -10°F ambient*.
*: Full cooling capacity down to -10°F ambient at consistent cooling demand levels not less than 50% of the rated capacity.
FOR INSTALLER
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Summary of Contents for Mitsubishi Electric LAHN-1
- Page 1 MANUFACTURED FOR: MITSUBISHI ELECTRIC US, INC. LAHN-1, LAHN-2, LAHN-3, and LAHN-4 Low Ambient Hoods for use with: ® CITY MULTI N-Generation Y-Series Outdoor Units FOR INSTALLER INSTALLATION MANUAL For safe and effective use of this kit, please read this installation manual thoroughly before installing these components.
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Page 2: Inspecting The Shipment
Contents ............2 ..........8 ........4 ...........9 ............................11 ..........6 ..........12 ..............6 ..............13 ........7 ..........14 1. Inspecting the shipment ordered. Components included in the LAHN-1/LAHN-3 Kit LAHN-1/LAHN-3 (MAIN) Components included in the LAHN-2/LAHN-4 Kit LAHN-2/LAHN-4 (SUB) - Page 3 **MESCA Provided Bulletin: ** NOT APPLICABLE NOTE: (12) - Screws (4) - Screws for Installation © 2019 Mitsubishi Electric US, Inc.
- Page 4 2. Components required per outdoor unit Part Number Description LAHN-1 LAHN-2 LAHN-3 LAHN-4 SWDN-1 ** NOT APPLICABLE WDN-1 WDN-2 **MESCA Provided Bulletin:...
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Page 5: Safety Precautions
Before attempting installation or service work disconnect all power to this equipment and/or ice formation during Warning: defrost. This kit must be installed by an authorized dealer or properly trained technician. applied to the terminals. circuit. protections devices. © 2019 Mitsubishi Electric US, Inc. - Page 6 4. Unit placement and clearances air recirculation. Top View Prevailing Wind Building Wall Outdoor Units IMPORTANT! If the unit is located in an area with continuous high winds, the unit may require additional bracing. Contact your local distributor for assistance. 5.
- Page 7 For all roof top installations, safety straps must be attached between the hood(s) and the equipment support structure. IMPORTANT! For all roof top installations, safety straps must be attached between the hood(s) and the unit support structure. Safety strap provided by others. © 2019 Mitsubishi Electric US, Inc.
- Page 8 Before attempting installation or service work, disconnect all power to this equipment. these steps. STEPS Warning: Because of component weight, hood requires 2 people lift it into place. STEPS: LAHN-1 LAHN-2 LAHN-3 LAHN-4 STEP 2 STEP 1 STEP 3 PROVIDED SCREW...
- Page 9 Avoid contact between the wires and any refrigerant piping inside the cabinet. If necessary, use wires ties included with puncturing the unit internal piping resulting the kit to secure away from refrigerant piping. in a leak and loss of refrigerant charge. © 2019 Mitsubishi Electric US, Inc.
- Page 10 Step 1 Warning: Before attempting installation or service work disconnect all power to this equipment. Step 2 Step 3 Step 4 fan operation. Step 5 CN505 CN505 CNAC2 STEP 1 CNAC2 STEP 2 IMPORTANT! Change fan operation to 0.32 esp STEP 4 STEP 3...
- Page 11 Date of Manufacture Initials Disconnect white plug with four wires from the CN505 connection. Plug the white Manufactured for Mitsubishi Electric US, Inc. male connector from the low ambient kit onto green the CN505 connection. Connect the white plug with four wires onto the spare connection.
- Page 12 repeat steps 3 and 4. AVOID TOUCHING OR DAMAGING THE COIL SURFACE! 6. Follow Steps 7-9 for Large and XLarge ODUs ONLY WDN-2. the ODU. ODU.
- Page 13 Damper Angle [°] OPEN Ambient Temp Hood Angle Output Voltage Resistance 8.78 117960 8.78 100184 72906 62460 7.04 46220 7.04 39917 7.04 7.04 30000 26104 22767 = As Temperature Increases = As Temperature Decreases © 2019 Mitsubishi Electric US, Inc.
- Page 14 12. Damper blade adjustment IMPORTANT! Belimo motor angle indicating The factory setting for the mechanical stop scale shown below. Basic Service Overview...
- Page 15 STEP BY STEP INSTRUCTIONS: © 2019 Mitsubishi Electric US, Inc.
- Page 16 Review and Manual Test...
- Page 17 This product is designed and intended for use in the commercial environment. Please be sure to put the contact address/telephone number on this manual before handing it to the customer. Manufactured for MITSUBISHI ELECTRIC US, INC. www.mylinkdrive.com Toll Free: 800-433-4822 MEUS DOC# MD-1922-K001 Ver. 3, November 2019...