Modine Manufacturing PD/BD Installation Instructions Manual

THIS MANUAL IS THE PROPERTY OF THE OWNER. PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB.

The propane kits appearing in this bulletin are for use with units 

which are going to be installed between 0 and 2000 ft. elevation. 

If a unit is to be installed at higher elevations, a special “high 

altitude” propane orifice kit must be ordered in addition to the 

propane conversion kits shown here. See Bulletin 75-535 for 

selection of “high altitude” orifice kits.

When converting units to propane at elevations over 2000 ft., 

the main burner orifices in the propane conversion kit must 

be replaced with the orifices from the “high altitude” orifice kit. 

The remaining components of the propane kit, those other 

than the main burner orifices, are still required to complete the 

conversion to propane gas, regardless of the elevation at which 

the unit is installed.

Identifying the Model, Control Code and 

Date of Manufacture

Figure 2.1, shown on the next page, is an example of a typical 

serial plate. Markings pertinent to verifying correct application 

of the conversion kit are identified and explained in detail. 

All 

prerequisites must be satisfied before the unit is deemed 

convertible.

1.  The first two or three characters in the model number box 

are letters. These letters identify the style of the heater. If 

any of the following model prefixes appear in this box, the 

unit is potentially convertible: PD/BD, PDP/BDP, PV/BV, 

DJE, IJE, DFG, IFG, NFG, DFP, IFP, DFS, IFS.

2.  Next, the number 11, 12, 13, 14, 30, 31, 32, or 33 must be 

the control code or digits 11 and 12 of the model number 

are N1 or S1. This is item (2) in Figure 2.1. Any other 

number code disqualifies the unit for conversion.

3.  Item (3) in Figure 2.1 in the serial number box designates 

the date the unit was built.  In Figure 2.1, the numbers 

3601 are shown.  This number is interpreted as the thirty 

sixth week of 2001. Prior to January 1995, the digits 

preceding the year represent month of manufacture. After 

January 1995, the (2) digits proceeding the year represent 

the week of manufacture. Any serial number dated 4/91 or 

after is acceptable for conversion.

December, 2016

SELECTION AND INSTALLATION INSTRUCTIONS 

 conversion from natural gas to propane gas for

models PD/BD, PDP/BDP, PV/BV, DJE/DHE, IJE/IHE 

with control codes 11-14 or 30-33 and built 4/91 or after,

“D” and “I” series duct furnace/make up air units with 

digits 11 & 12 = N1 or S1

WARNING

1.  All field gas piping must be pressure/leak tested prior to 

operation. Never use an open flame. Use a soap solution 

or equivalent for testing.

2.  Gas supply shall be shut-off and the electrical power 

disconnected before proceeding with the conversion. 

Failure to do so could result in fire, explosion or electrical 

shock.

1.  The use of this manual is specifically intended for a 

qualified installation and service agency. All installation 

and service of these kits must be performed by a qualified 

installation and service agency.

2.  These instructions must also be used in conjunction with 

the Installation and Service manual originally shipped 

with the appliance being converted, in addition to any 

other accompanying component supplier literature.

IMPORTANT

As Modine Manufacturing Company has a continuous 

product improvement program, it reserves the right to 

change design and specifications without notice.

75-511.13

5H0722980000