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FarmTek MWH-180 - User Manual

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INSTALLATION AND OPERATING
INSTRUCTION
WARNING : If the information in this instruction is not followed exactly, a fire or
explosion may result causing property damage, personal injury or death.
- Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or
any other appliance.
- WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor's phone.
Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
- Installation and service must be performed by a qualified installer, service agency or the
gas supplier.
INSTALLER : Leave this manual with the appliance.
CONSUMER : Retain this manual for future reference.
Model MWH-180
Residential indoor unit,
Manufactured home (mobile home)

Questions and Answers

  • A
    Amber FullerAug 16, 2025
    Why are the water temperature and flow volume sometimes unsteady in my FarmTek MWH-180?
    • C
      Carly KellyAug 17, 2025
      Water temperature and flow volume may fluctuate if hot water is used at other faucets simultaneously, water pressure changes occur, or gas regulator fluctuates.
  • N
    nancy06Aug 19, 2025
    Why does white steam come out from the exhaust outlet of my FarmTek Water Heater?
    • C
      Calvin VargasAug 19, 2025
      This occurs because the exhaust gas contains a lot of vapor which turns white when it contacts cold air.
  • H
    heather07Aug 22, 2025
    Why does the blower keep running for a while after I shut off the hot water faucet on my FarmTek MWH-180 Water Heater?
    • C
      Chad AdamsAug 22, 2025
      The blower continues to run for about 65 seconds after you turn off the hot water faucet to discharge the exhaust gas in the combustion chamber.
  • T
    Tracy BoydAug 26, 2025
    Why does the hot water flow volume fluctuate on my FarmTek MWH-180, even at the same set temperature?
    • M
      Mr. Hunter MorrisonAug 26, 2025
      The hot water flow volume may fluctuate due to differences in water supply temperature or if the water is supplied by a well with pump pressure fluctuations.
  • T
    thomas39Aug 28, 2025
    Why does the water temperature at the faucet vary from the displayed temperature on the remote controller of my FarmTek MWH-180?
    • D
      David VazquezAug 28, 2025
      The hot water temperature may vary from the set temperature due to the climate, plumbing length, or water flow.
  • J
    James CarneyAug 31, 2025
    Why does the surface of the remote controller of my FarmTek MWH-180 feel warm?
    • A
      Andrew WhiteAug 31, 2025
      The remote controller feels warm because of the display screen light and the electronic circuit being activated even when the switch is off. This generates heat.
  • R
    Randall AllisonSep 3, 2025
    Why does the hot water from my FarmTek Water Heater look white?
    • J
      Jonathan CoxSep 3, 2025
      Air dissolved in the water is separated and appears white.
  • A
    Anne BrownSep 6, 2025
    Why is hot water with the desired temperature not available immediately when I turn on the faucet for my FarmTek Water Heater?
    • A
      angelica92Sep 6, 2025
      It takes a little time to reach the set temperature because of the residual water in the pipe and the distance between the unit and the faucet.
  • C
    Christian LaneSep 9, 2025
    How to fix a FarmTek Water Heater that is hard to ignite at the initial attempts?
    • R
      Ryan JuarezSep 9, 2025
      Shut the hot water supply faucet and open it again. Repeat this process, because there might be air in the gas pipe.
  • J
    Jamie ToddSep 12, 2025
    What to do if hot water does not flow from my FarmTek MWH-180, even when the faucet is open?
    • A
      Anthony BuchananSep 12, 2025
      Turn the faucet further to increase the water volume.

Summary

Installation and Operating Instructions

Safety Warnings

Critical safety information regarding fire, explosion, and gas leaks to prevent injury or death.

Safety First: Understanding Warnings

Safety Symbols and Meanings

Explains the meaning of danger, warning, and caution symbols used in the manual.

Operational Safety Risks

Vent Pipe and Gas Leak Hazards

Addresses risks associated with vent pipes and gas leaks, and response actions.

Personal Safety During Operation

Scalding Prevention and Emergency Response

Provides guidance on preventing scalding and actions during emergencies.

Installation and Handling Safety

Safe Installation and Handling Practices

Covers safety regarding children, flammables, piping, and placement.

Electrical and Environmental Safety

Grounding and Environmental Precautions

Details electrical grounding, handling hot parts, and environmental considerations.

Operational Checks and Limitations

Usage and Maintenance Safety

Hot Water Safety and First Aid

Remote Controller Operation

Winter Season Freeze Protection

Pre-Operation and Startup

Daily Checks and Maintenance

Fault Monitoring and Diagnostics

Error Codes and Remedies

Lists error codes, their causes, and recommended remedies for faults.

Troubleshooting Common Issues

Installation Safety and Warnings

Installation Safety and Warnings

Outlines safety classifications (Danger, Warning, Caution) and installation restrictions.

Installation Requirements

Unit Verification and Clearances

Covers unit suitability checks, minimum clearances, and ventilation requirements.

Mounting and Location

Mounting and Location Requirements

Details wall mounting, floor drainage, and proper location considerations.

Installation Environment

Installation Environment and Components

Addresses fire safety, appliance suitability, chemical exposure, and pressure relief valve.

Vent Pipe Installation Requirements

Vent System Installation Basics

Vent Pipe Length and Fan Settings

Vent Pipe Installation Notes and Warnings

High Altitude Vent Pipe Adjustments

Vent Pipe Installation Guidelines

Vent System Components and Assembly

Vent Pipe Connection Procedures

Vent Pipe Assembly Details

Vent Pipe Support and Drainage

Horizontal Vent Installation Guide

Horizontal and Extended Installation Steps

Provides detailed steps for horizontal and horizontal extended vent installations.

Wall Penetration for Venting

Horizontal Installation Details

Extended Horizontal Vent Installation

Horizontal Extended Installation Steps

Details the procedure for installing horizontal extended vent systems.

Vertical Vent Installation Procedure

Roof Pitch and Flashing Installation

Guides on vertical installation, roof pitch, and roof flashing procedures.

Gas and Water Piping

Electrical Connection and Grounding

Electrical Connection Safety

Emphasizes grounding, wiring errors, and power disconnection before work.

Electrical Connection Details

Remote Controller Installation

Testing Operation and Customer Explanation

Gas Type Conversion Procedure

Conversion Safety and Part Requirements

Emphasizes safety and lists parts needed for natural gas to propane conversion.

Conversion Steps Part 1

Step 2: Damper Replacement and Switch Settings

Details damper replacement and initial DIP switch adjustments for gas type.

Conversion Steps Part 2

Conversion Steps Part 3

FarmTek MWH-180 Specifications

General IconGeneral
CategoryWater Heater
ModelMWH-180
ProtectionIPX4
Frequency50 Hz
MaterialStainless Steel