Maytag POF1HD091AVFA, Installation, Operation And Maintenance Manual

IMPORTANT: 

SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE 

1.  INTRODUCTION 

Please read these instructions completely and 
carefully before installing and operating the furnace.

Model 

POF1HD140AVFA

 is an oil fired forced air up-flow 

furnace with an output capacity range of 87,000 BTU/Hr. 
to 116,000 BTU/Hr.  Model 

POF1HD091AVFA

 is an oil 

fired forced air up-flow furnace with an output capacity 
range of 58,000 BTU/Hr. to 87,000 BTU/Hr.   

POF1HD140AVFA

 and 

POF1HD091AVFA

 are equipped 

with direct drive ECM motors. 

DO NOT USE GASOLINE, CRANK CASE OIL, OR 
ANY OIL CONTAINING GASOLINE. 

FOR YOUR SAFETY

DO NOT STORE OR USE GASOLINE OR OTHER 
FLAMMABLE VAPORS AND LIQUIDS IN THE 
VICINITY OF THIS OR ANY OTHER APPLIANCE. 

All models are CSA listed, (NRTL/C) for use with No. 1 
(Stove) and No. 2 (Furnace) Oil. Please refer to the 
tables in Appendix A for performance and dimensional 
data. 

In Canada, the installation of the furnace and related 
equipment shall be installed in accordance with the 
regulations of CAN/CSA - B139, 

Installation Code for Oil-

Burning Equipment

, as well as in accordance with local 

codes.  

In the United States of America, the installation of the 
furnace and related equipment shall be installed in 
accordance with the regulations of NFPA No. 31, 

Standard for the Installation of Oil-Burning Equipment

, as 

well as in accordance with local codes. 

Regulations prescribed in the National Codes and Local 
regulations take precedence over the general 
instructions provided on this installation manual. When in 
doubt, please consult your local authorities. 

All models are shipped assembled and pre-wired. The 
furnace should be carefully inspected for damage when 
being unpacked. 

2.  HEAT LOSS 

The maximum hourly heat loss for each heated space 
shall be calculated in accordance with the procedures 
described in the manuals of the Heating, Refrigeration 
and Air Conditioning Institute of Canada (HRAI), or by 

other means prescribed, or approved by the local 
authority having jurisdiction.  

In the United States, Manual J. titled, "Load 
Calculation" published by the Air Conditioning 
Contractors of America, describes a suitable 
procedure for calculating the maximum hourly heat 
loss. 

3.  LOCATION OF UNIT 

The furnace should be located such that the flue 
connection to the chimney is short, direct and 
consists of as few elbows as possible. When 
possible, the unit should be centralized with respect 
to the supply and return air ductwork. A central 
location minimizes the trunk duct sizing. All models 
may be installed on combustible floors. The 
minimum installation clearances are listed in Table 
1. 

Table 1:  Clearances – (Inches)

Clearance to Combustibles 

POF1HD140AVFA 
POF1HD091AVFA 

Location 

Models 

Top 1 

Bottom 0 

S/A Plenum 

1 

Rear 1 

Sides 1 

Front 

   1** 

Flue Pipe 

  9* 

Enclosure Closet 

*18 in. in USA 
** 24 in. required for service clearance 

HEAT EXCHANGER SUPPORT SCREWS 

3