Install Instructions

HD 45 A S 01 1 1
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.
The propane gas kits appearing in this bulletin are for use with
units which are going to be installed between 0 and 2,000 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 Modine
Bulletin 75-537 for selection of “high altitude” orifice kits.
When converting units to propane at elevations over 2,000 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 gas 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
Figures 1.1 and 1.2 explain model number and serial number
designations. Markings pertinent to verifying correct application
of the conversion kit are identified and explained in detail. The
following prerequisites must be satisfied before the unit is
deemed convertible:
1. The first three characters in the model number must be HD,
HDB, HDS, HDC, PTS, BTS, or PTC.
2. The control code for the unit must be 11 or 12 (control code
11 only for model PTC).
3. Finally, the serial number calls out the date the unit was
built. Any unit manufactured after the 20th week of 2007, is
acceptable for conversion.
SELECTION AND INSTALLATION INSTRUCTIONS
conversion from natural gas to propane gas for
models HD/HDB, HDS/HDC, PTS/BTS, or PTC
(For direct spark ignition, control code 11 and 12)
75-515.3
5H80018A
August, 2009
THIS MANUAL IS THE PROPERTY OF THE OWNER.
PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB.
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
Figure 1.2 - Serial-Number Designations
Figure 1.1 - Model Number Designations
01 01 00 17 09 01 05 1000
MOTOR
VENDOR CODE
01 - Century
05 - Universal
etc.
YEAR OF
MANUFACTURE
05 - 2005
06 - 2006
etc.
WEEK OF
MANUFACTURE
01 - 1st week of year
26 - 26th week of year
SEQUENCE
NUMBER
FAN
VENDOR CODE
01 - Revcor
08 - Brookside
etc.
UNIT SERIES
Identifies the design
series of the unit
CONTROL
SUPPLIER
05 - Honeywell
17 - United
Technologies
etc.
GAS VALVE
SUPPLIER
01 - Robertshaw
05 - Honeywell
etc.
Model Type
HD - Power Vented
Propeller Unit
(30-125MBH)
HDB - Power Vented
Blower Unit
(60-125MBH)
HDS - Separated
Combustion
Propeller Unit
(30-125MBH)
HDC - Separated
Combustion Blower
Unit (60-125MBH)
PTS - Separated
Combustion Propeller
Unit (150-400MBH)
BTS - Separated
Combustion Blower
Unit (150-400MBH)
PTC - High Efficiency,
Separated Combustion
Propeller Unit
(135-310MBH)
Power Code
01 - 115 volt, 60 hertz,
single phase
Control Code
11 - Single Stage,
Natural Gas
12 - Two Stage,
Natural Gas
Ignition Type
S - Direct Spark
Heat Exchanger Type
A - Aluminized
S - Stainless Steel
MBH Input
30 - 30,000 Btu/hr input
through
400 - 400,000 Btu/hr input