Indledning
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your Modine Hot Dawg HD Unit Heater. This unit is designed for heating spaces such as garages and workshops, providing 30,000 BTU/hr input using natural gas. It features a power-vented design and an aluminized steel heat exchanger for durability and performance.
Please read this manual thoroughly before attempting to install, operate, or service the heater. Failure to follow these instructions could result in property damage, personal injury, or death. Keep this manual for future reference.

Figur 1: Front view of the Modine Hot Dawg HD Unit Heater. The unit is a rectangular, light gray metal box with a blue and white "HOT DAWG" logo on the right side. The left side shows the internal heat exchanger coils and fins.
Opsætning og installation
Installation of the Modine Hot Dawg HD Unit Heater must be performed by a qualified installer or service agency in accordance with all local codes and the National Fuel Gas Code (ANSI Z223.1/NFPA 54) or the Natural Gas and Propane Installation Code (CSA B149.1) in Canada.
Montering
- The unit is designed for ceiling bracket mounting. Ensure the mounting structure can safely support the unit's weight. (Note: The provided product data lists an unusually low weight of 0.01 ounces; please refer to the product's physical documentation for accurate weight specifications.)
- Maintain proper clearances from combustible materials as specified in the installation instructions provided with the unit.
- Ensure the unit is level for proper condensate drainage and efficient operation.
Gasforbindelse
- Connect the unit to a natural gas supply. Verify that the gas pressure is within the specified range for the heater.
- All gas connections must be leak-tested after installation.
Elektrisk tilslutning
- The unit requires a 115V, 60 hertz, single-phase electrical supply.
- Wiring must comply with local electrical codes and the National Electrical Code (NFPA 70).
- Sørg for korrekt jordforbindelse af enheden.
Udluftning
- This is a power-vented unit. Proper venting is crucial for safe operation and exhaust of combustion byproducts.
- A 3-inch vent pipe is typically required (venting not included with the unit). Follow manufacturer's guidelines for vent pipe material, length, and termination.
Betjeningsvejledning
The Modine Hot Dawg HD Unit Heater utilizes a direct spark ignition system for reliable startup.
Indledende opstart
- Ensure all gas and electrical connections are secure and leak-free.
- Tænd for gasforsyningen til enheden.
- Tænd for strømmen til enheden.
- Indstil termostaten til en temperatur over den aktuelle rumtemperatur.
- The unit's direct spark ignition system will initiate the ignition sequence. You should hear the inducer motor start, followed by a clicking sound from the igniter, and then the main burner ignition.
- Allow the unit to operate for a few minutes to ensure proper function.
Normal drift
- Once installed and commissioned, the heater operates automatically based on the thermostat setting.
- When the thermostat calls for heat, the unit will cycle on, heat the space, and then cycle off when the desired temperature is reached.
- The unit is designed for quiet operation.
Slukning af enheden
- For temporary shutdown, set the thermostat to its lowest setting or to "Off" if available.
- For extended shutdown (e.g., off-season), turn off the electrical power to the unit and close the manual gas shut-off valve.
Opretholdelse
Regular maintenance ensures the longevity and efficient operation of your Modine Hot Dawg HD Unit Heater. Always disconnect electrical power and shut off the gas supply before performing any maintenance.
Annual Inspection (Recommended by Qualified Technician)
- Inspect the heat exchanger for cracks or corrosion.
- Check the burner for proper flame appearance and cleanliness.
- Verify proper operation of the ignition system.
- Inspect the vent system for obstructions, leaks, or deterioration.
- Clean the blower wheel and motor if necessary.
- Check electrical connections for tightness and signs of overheating.
- Verify proper gas pressure and manifold pressure.
User Maintenance (Monthly/Seasonally)
- Rent ydre: Tør det udvendige afasing med annonceamp klud til at fjerne støv og snavs.
- Ryd forhindringer: Ensure that the air intake and exhaust vents are free from obstructions (e.g., leaves, snow, debris).
- Lyt efter usædvanlige lyde: Pay attention to any new or unusual sounds during operation, which could indicate a problem.
Fejlfinding
Inden du tilkalder service, vedrview the following common issues and their solutions. Always ensure power is off and gas supply is closed before inspecting the unit.
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Varmeapparatet tænder ikke. | Ingen elektrisk strøm. Termostat indstillet for lavt. Gasforsyning slukket. | Tjek afbryder/sikring. Øg termostatindstillingen. Sørg for, at gasventilen er åben. |
| Brænderen tænder ikke. | Ingen gasstrøm. Igniter issue. Blokeret udluftning. | Kontroller gasforsyningen. Kontakt en kvalificeret tekniker. Check for vent obstructions. |
| Unit cycles on and off rapidly. | Begrænset luftstrøm. Overophedning. | Ensure return and supply air grilles are clear. Check for proper ventilation around the unit. |
| Usædvanlige lyde under drift. | Løse komponenter. Blower motor issue. | Inspect for loose panels or parts. Kontakt en kvalificeret tekniker. |
If the problem persists after attempting these solutions, contact a qualified HVAC technician for assistance. Do not attempt repairs beyond your capabilities.
Specifikationer
- Modelnummer: HD30AS0111
- Mærke: Modine
- BTU-indgang: 30,000 BTU/time
- Brændstoftype: Naturgas
- Antændelsestype: Direkte gnisttænding
- Voltage: 115V, 60 Hz, Single Phase
- AFUE: 80% (Approximate, based on product title)
- Varmeveksler: Aluminiseret stål
- Dimensioner (D x B x H): 22" D x 26.8" B x 12.2" H
- Recommended Heating Coverage: Approximately 500 Sq Ft (for 1 to 1-1/2 Car Garage)
- Monteringstype: Loftsbeslag
- Speciel funktion: Stille drift
- Indendørs/udendørs brug: Indendørs
Garanti og support
For detailed warranty information, please refer to the warranty card included with your product or visit the official Modine webGarantibetingelserne dækker typisk fabrikationsfejl i en bestemt periode.
For technical support, service, or to locate authorized service providers, please contact Modine customer service directly. You may find contact information on the Modine webstedet eller i emballagematerialerne.
Modine Official Webwebsted: www.modinehvac.com





