Thermo Products Thermo Pride Furnace MHA1-75N User's Manual

INDUCED DRAFT HIGHBOY AND 

COUNTERFLOW/HORIZONTAL  

GAS FURNACE 

INSTALLATION AND SERVICE MANUAL 

MODELS 

 MHA1-50N 

MDA1-50N 

                                    MHA1-75N 

MDA1-75N 

                                    MHA1-100N 

MDA1-100N      

                                    MHA1-125N 

MDA1-125N 

: IF YOU DO NOT FOLLOW THE SAFETY PRECAUTIONS BELOW AND IN THIS MANUAL, 

A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY, OR 
LOSS OF LIFE. 

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. 

•  LEAVE THE BUILDING IMMEDIATELY. 

•  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. (REFERRED TO IN THESE INSTRUCTIONS AS A QUALIFIED 
HEATING CONTRACTOR). 

 
PLEASE READ THESE INSTRUCTIONS PRIOR TO INSTALLATION, INITIAL FIRING, AND BEFORE 
PERFORMING ANY SERVICE OR MAINTENANCE. THESE INSTRUCTIONS MUST BE LEFT WITH 
THE HOMEOWNER AND SHOULD BE RETAINED FOR FUTURE REFERENCE BY 
QUALIFIED SERVICE PERSONNEL. 

THERMO PRODUCTS, LLC. 
BOX 217 

MG-1008 

NORTH JUDSON, IN 46366 

ECN 4283-MA 

PHONE: (574) 896-2133 

MADE IN USA