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Mainline Manuals & User Guides

Mainline offers a comprehensive range of plumbing fixtures, faucets, bath accessories, and high-efficiency HVAC systems for residential and commercial professionals.

Tip: include the full model number printed on your Mainline label for the best match.

About Mainline manuals on Manuals.plus

Mainline is a trusted brand in the building and home improvement industry, providing a diverse portfolio of products designed for durability and performance. Primarily available through professional distributors, the Mainline catalog includes kitchen and bath faucets, tub spouts, towel bars, and rough plumbing components like expansion tanks and fire-rated outlet boxes.

In addition to plumbing fixtures, Mainline manufactures high-efficiency climate control solutions, including air conditioners and heat pumps equipped with smart diagnostics and variable speed technology. Mainline products are engineered to meet the rigorous demands of professional installers while offering modern aesthetics for homeowners.

Mainline manuals

Latest manuals from manuals+ curated for this brand.

MAINLINE A118011 Diverter Tub Spout Instruction Manual

March 18, 2024
MAINLINE A118011 Diverter Tub Spout  Specifications Product Name: Diverter Tub Spout Warranty: 5-year warranty against defects in material and workmanship Finish Warranty: 5-year warranty against deterioration of finish Product Usage…

MAINLINE MLP18AZ Heat Pumps User Manual

October 17, 2023
MAINLINE MLP18AZ Heat Pumps Product Information Cooling Efficiencies Up to 20.0 SEER2/12.5 EER2 Heating Efficiency 8.5 HSPF2 Nominal Sizes 2 to 5 Ton [7.0 to 17.6 kW] Cooling Capacities 22.8…

MAINLINE MLA15AZ24AJ3NA Elite iM Air Conditioners User Manual

October 16, 2023
MAINLINE MLA15AZ24AJ3NA Elite iM Air Conditioners Product Information The MLA15AZ Air Conditioner is manufactured by HVACmainline.com. It is available in four different models: MLA15AZ24AJ3NA, MLA15AZ36AJ3NA, MLA15AZ48AJ3NA, and MLA15AZ60AJ3NA. The air…

MAINLINE MLP15AZ iM Heat Pumps User Manual

October 14, 2023
MAINLINE MLP15AZ iM Heat Pumps Product Information The iM Heat Pumps MLP15AZ are high-efficiency heat pumps manufactured for HVACmainline.com. They have cooling efficiencies up to 16 SEER2 / 11.7 EER2…

Multi-Zone Outdoor Unit Air Conditioner Installation Manual

Installation Manual
Installation manual for the Multi-Zone Outdoor Unit Air Conditioner, covering safety precautions, specifications, product overview, installation procedures, refrigerant piping, wiring, evacuation, refrigerant charging, test runs, operation instructions, maintenance, and troubleshooting.

MAINLINE Air Conditioner Installation Manual - Model Guide

Installation Manual
Comprehensive installation manual for MAINLINE air conditioners, covering safety precautions, refrigerant piping, wiring, outdoor unit installation, specifications, and test run procedures. Essential guide for proper setup and operation.

Mainline manuals from online retailers

Mainline support FAQ

Common questions about manuals, registration, and support for this brand.

  • Who do I contact for Mainline faucet customer support?

    For assistance with Mainline faucets and bath accessories, you can email customerservice@1858brands.com or call the toll-free support line at 1-888-328-2383.

  • What is the standard warranty for Mainline bath accessories?

    Mainline typically offers a 5-year warranty against defects in material and workmanship, as well as finish deterioration, for the original consumer purchaser.

  • How should I clean my Mainline faucet or chrome accessory?

    To avoid voiding the warranty, do not use cleaners containing abrasives, ammonia, bleach, acids, waxes, or alcohol. Clean only with mild soap and water.

  • Where can I register my Mainline product warranty?

    You can register your warranty online at the Mainline Collection website, specifically on the registration page.