Modine Manufacturing PD/BD, PDP/BDP, PSH/BSH Installation Instructions Manual

75-535.11

5H605846A Rev. Ul

December, 2008

SELECTION AND INSTALLATION INSTRUCTIONS

high altitude orifice kit

models PD/BD, PDP/BDP, PSH/BSH

and model series “D”, “H”, “I”, “O” duct furnace/make up air units

(not including separated combustion)

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 fi re, explosion or electrical
shock.

WARNING

IMPORTANT

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.

Figure 1.1 - Gas Designation Disc

EQUIPPED

FOR USE

WITH

PROPANE

GAS

NRTL

NTRL

5H604841A

HIGH ALTITUDE CONVERSION
For Existing Natural or Propane Gas Units

Gas-fired equipment ratings are certified by C.S.A. For
elevations above 2000 ft., ANSI Z223.1 requires ratings be
reduced 4 percent for each 1000 ft. above sea level. C.G.A.
requires that ratings be reduced 10% at elevations above 2000
ft. To accommodate higher altitude operation, equipment

must be converted by changing orifices as explained in
this instruction sheet. Tables 2.1 thru 5.2 list orifice kits which

comply with both ANSI Z223.1 recommendations and C.S.A.
requirements.

As Modine Manufacturing Company has a continuous

product improvement program, it reserves the right
to change design and specifications without notice.

Table of Contents Pages

High altitude conversion ......................................................... 1

High altitude propane gas

conversion from natural gas ............................................. 1

Selection of the proper kit ....................................................... 1

Installation of kits .................................................................... 6

Cross reference ...................................................................... 8

For Units being Converted from Natural Gas
to Propane Gas Concurrently

IMPORTANT

Conversion from natural gas to propane gas is allowed for
PD/BD, PDP/BDP, and PSH/BSH models with 11,12, 30,
or 31 control codes, built in January, 1987 or later. For this

conversion, both a propane conversion kit and a propane
high altitude kit must be used.

Follow carefully the propane conversion instructions, found
in Bulletin 75-511, using the proper high altitude main burner
orifices called out in this literature (75-535) instead of the
orifices in propane conversion kit.

SELECTION OF THE PROPER KIT

To select the proper high altitude kit you need to know the
specifics of the heater you will be converting, and the altitude
it will be going into. If the high altitude kits are ordered at the
same time as the unit heater, all pertinent information relative to
the heater can be obtained from the catalog. If the high altitude
kit is needed after the unit heater is in the field, you need to
refer to the carton label or unit heater serial plate to obtain the
necessary information. Figure 8.2 shows a portion of the unit
heater serial plate where this information may be obtained.
Referring to this figure, the prefix letters and successive
numbers which are needed for kit selection are BV 100. The
letters identify the model and the numbers the size of the unit.
To determine the type of gas the unit is designed for, see the
gas designation disc (Figure 1.1) and the type of gas, located on
the serial plate.

After obtaining this information, refer to the proper selection
chart. The selection charts are differentiated by product type,
altitude and fuel type. Remember, if you are converting from

natural gas to propane gas and want to operate at high altitude,
both a propane conversion kit and a propane high altitude kit
must be used. Selection charts include the proper kit suffix, the

orifice drill size, and the number of orifices required for the unit
being converted. Drill sizes are also stamped on each orifice.

PLEASE BE SURE TO LEAVE IT WITH HIM WHEN YOU LEAVE THE JOB.

THIS MANUAL IS THE PROPERTY OF THE OWNER.

HIGH ALTITUDE ORIFICE KIT SELECTION GUIDE

Table 2.1 - Natural Gas - 2001 to 4500 ft. Elevations - PD/BD, PDP/BDP, PSH/BSH, model series “D”, “H”,“I”, & ,“O” ➀ ➁

Model Model Size

Type 30 50 75 100 125 130 150 170 175 200 225 250 280 300 340 350 400
PD/BD, PDP/BDP 30 50 75 100 125 - 150 - 175 200 - 250 - 300 - 350 400

Kit Suffix -30 -121 -120 -22 -23 - -90 - -15 -26 - -125 - -92 - -88 -126
Drill Size 41 31 24 31 29 - 24 - 30 28 - 21 - 24 - 26 28
Orifices in Kit 1 1 1 2 2 - 2 - 3 3 - 3 - 4 - 5 6

PSH/BSH - - - - - 130 150 170 - - 225 - 280 - 340 - -

Kit Suffix - - - - - 14 94 15 - - 50 - 44 - 129 - ­ Drill Size - - - - - 28 31 30 - - 24 - 26 - 27 - ­ Orifices in Kit - - - - - 2 3 3 - - 3 - 4 - 5 - -

Pressure
Switch in Kit - - - - - NO NO NO - - NO - NO - NO - -

➂ - - 75 100 125 - 150 - 175 200 225 250 300 350 400
Kit Suffix - - -3 -22 -14 - -94 - -7 -8 -9 -10 - -11 - -85 -13

Drill Size - - 23 31 28 - 31 - 29 26 23 28 - 23 - 29 26
Orifices in Kit - - 1 2 2 - 3 - 3 3 3 4 - 4 - 6 6

Table 2.2 - Natural Gas - 4501 to 5500 ft. Elevations - PD/BD, PDP/BDP, PSH/BSH, model series “D”, “H”,“I”, & ,“O” ➀ ➁

Model Model Size

Type 30 50 75 100 125 130 150 170 175 200 225 250 280 300 340 350 400
PD/BD, PDP/BDP 30 50 75 100 125 - 150 - 175 200 - 250 - 300 - 350 400
Kit Suffix -33 -121 -127 -22 -23 - -128 - -15 -26 - -112 - -87 - -129 -126
Drill Size 42 31 25 31 29 - 25 - 30 28 - 22 - 25 - 27 28
Orifices in Kit 1 1 1 2 2 - 2 - 3 3 - 3 - 4 - 5 6

PSH/BSH - - - - - 130 150 170 - - 225 - 280 - 340 - -

Kit Suffix - - - - - 504 508 15 - - 513 - 95 - 522 - ­ Drill Size - - - - - 29 31 30 - - 25 - 27 - 28 - ­ Orifices in Kit - - - - - 2 3 3 - - 3 - 4 - 5 - -

Pressure
Switch in Kit - - - - - YES YES NO - - YES - NO - YES - -

➂ - - 75 100 125 - 150 - 175 200 225 250 - 300 - 350 400

Kit Suffix - - -120 -22 -14 - -94 - -15 -122 -50 -10 - -92 - -97 -93
Drill Size - - 24 31 28 - 31 - 30 27 24 28 - 24 - 30 27
Orifices in Kit - - 1 2 2 - 3 - 3 3 3 4 - 4 - 6 6

➀ All conversion kits have the same base part number 3H33231, only the suffix of the part number changes by model size.
➁ Does not include DFS, DBS, DCS, IFS, IBS, ICS.

➂

Indoor Duct Furnaces Weatherproof Duct Furnaces
DFG, DBG, DCG, IFG, IBG, ICG HFG, HBG, HCG, HDG, HPG, OFG, OBG, OCG, ODG, OPG
DFP, DBP, DCP, IFP, IBP, ICP HFP, HBP, HCP, HDP, HPP, OFP, OBP, OCP, ODP, OPP

2

75-535.11

HIGH ALTITUDE ORIFICE KIT SELECTION GUIDE

Table 3.1 - Natural Gas - 5501 to 6500 ft. Elevations - PD/BD, PDP/BDP, PSH/BSH, model series “D”, “H”,“I”, & ,“O” ➀ ➁

Model Model Size

Type 30 50 75 100 125 130 150 170 175 200 225 250 280 300 340 350 400
PD/BD 30 50 75 100 125 - 150 - 175 200 - 250 - 300 - 350 400

Kit Suffix -78 -121 -24 -22 -4 - -102 - -15 -7 - -9 - -44 - -96 -85
Drill Size 43 31 26 31 30 - 26 - 30 29 - 23 - 26 - 28 29
Orifices in Kit 1 1 1 2 2 - 2 - 3 3 - 3 - 4 - 5 6

PDP/BDP 30 50 75 100 125 - 150 - 175 200 - 250 - 300 - 350 400
Kit Suffix -78 -121 -501 -22 -4 - -102 - -15 -7 - -9 - -44 - -96 -85
Drill Size 43 31 26 31 30 - 26 - 30 29 - 23 - 26 - 28 29
Orifices in Kit 1 1 1 2 2 - 2 - 3 3 - 3 - 4 - 5 6
Pressure

Switch in Kit NO NO YES NO NO - NO - NO NO - NO - NO - NO NO

PSH/BSH - - - - - 130 150 170 - - 225 - 280 - 340 - -
Kit Suffix - - - - - 504 508 94 - - 514 - 518 - 522 - ­ Drill Size - - - - - 29 31 31 - - 26 - 28 - 28 - ­ Orifices in Kit - - - - - 2 3 3 - - 3 - 4 - 5 - -

Pressure
Switch in Kit - - - - - YES YES NO - - YES - YES - YES - -

➂ - - 75 100 125 - 150 - 175 200 225 250 - 300 - 350 400

Kit Suffix - - -127 -22 -23 - -94 - -15 -26 -56 -115 - -87 - -97 -126
Drill Size - - 25 31 29 - 31 - 30 28 25 29 - 25 - 30 28
Orifices in Kit - - 1 2 2 - 3 - 3 3 3 4 - 4 - 6 6

➃ - - 75 100 125 - 150 - 175 200 225 250 - 300 - 350 400

Kit Suffix - - -127 -22 -23 - -94 - -15 -26 -56 -115 - -87 - -97 -526➄
Drill Size - - 25 31 29 - 31 - 30 28 25 29 - 25 - 30 28
Orifices in Kit - - 1 2 2 - 3 - 3 3 3 4 - 4 - 6 6

Table 3.2 - Natural Gas - 6501 to 7500 ft. Elevations - PD/BD, PDP/BDP, PSH/BSH, model series “D”, “H”,“I”, & ,“O” ➀ ➁

Model Model Size

Type 30 50 75 100 125 130 150 170 175 200 225 250 280 300 340 350 400
PD/BD 30 50 75 100 125 - 150 - 175 200 - 250 - 300 - 350 400

Kit Suffix -78 -101 -83 -28 -4 - -5 - -94 -7 - -50 - -95 - -100 -85
Drill Size 43 32 27 32 30 - 27 - 31 29 - 24 - 27 - 29 29
Orifices in Kit 1 1 1 2 2 - 2 - 3 3 - 3 - 4 - 5 6

PDP/BDP 30 50 75 100 125 - 150 - 175 200 - 250 - 300 - 350 400
Kit Suffix -78 -101 -502 -28 -4 - -5 - -94 -7 - -50 - -95 - -100 -85
Drill Size 43 32 27 32 30 - 27 - 31 29 - 24 - 27 - 29 29
Orifices in Kit 1 1 1 2 2 - 2 - 3 3 - 3 - 4 - 5 6
Pressure

Switch in Kit NO NO YES NO NO - NO - NO NO - NO - NO - NO NO

PSH/BSH - - - - - 130 150 170 - - 225 - 280 - 340 - -
Kit Suffix - - - - - 505 509 508 - - 515 - 519 - 523 - ­ Drill Size - - - - - 30 32 31 - - 27 - 29 - 29 - ­ Orifices in Kit - - - - - 2 3 3 - - 3 - 4 - 5 - -

Pressure
Switch in Kit - - - - - YES YES YES - - YES - YES - YES - -

➂ - - 75 100 125 - 150 - 175 200 225 250 - 300 - 350 400
Kit Suffix - - -24 -22 -4 - -94 -15 -7 -8 -91 -44 -97 -85

Drill Size - - 26 31 30 - 31 30 29 26 30 26 30 29
Orifices in Kit - - 1 2 2 - 3 3 3 3 4 4 6 6

➃ - - 75 100 125 - 150 - 175 200 225 250 - 300 - 350 400
Kit Suffix - - -24 -22 -4 - -94 -15 -7 -8 -91 -44 -97 -527➄

Drill Size - - 26 31 30 - 31 30 29 26 30 26 30 29
Orifices in Kit - - 1 2 2 - 3 3 3 3 4 4 6 6

➀ All conversion kits have the same base part number 3H33231, only the suffix of the part number changes by model size.
➁ Does not include DFS, DBS, DCS, IFS, IBS, ICS.
➂

Indoor Gravity Vented Duct Furnaces Weatherproof Duct Furnaces
DFG, DBG, DCG, IFG, IBG, ICG HFG, HBG, HCG, HDG, HPG, OFG, OBG, OCG, ODG, OPG,HFP, HBP, HCP, HDP, HPP, OFP, OBP, OCP, ODP, OPP

➃

Indoor Power Vented Duct Furnaces
DFP, DBP, DCP, IFP, IBP, ICP

➄ Kit for DFP, DBP, DCP, IFP, IBP, ICP, 400 size only, also includes

a pressure switch.

75-535.11

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