THIS MANUAL IS THE PROPERTY OF THE OWNER.
PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB.
Inspection on Arrival
1. Inspect unit upon arrival. In case of damage, report it
immediately to transportation company and your local
Modine sales representative.
2.
Check rating plate on unit to verify that power supply meets
available electric power at the point of installation.
3. Inspect unit upon arrival for conformance with description of
product ordered (including specifications where applicable).
Table of Contents
Inspection on Arrival................................. 1
Special Precautions ................................. 2
SI (Metric) Conversion Factors ........................ 3
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Unit Location ...................................... 4
Combustible Material and Service Clearances .......... 4
Unit Mounting .................................... 5
Installation ........................................ 6
Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Gas Connections ................................ 15
High-Altitude Accessory Kit ........................ 16
Electrical ...................................... 18
Installation with Ductwork.......................... 19
Requirements/Adjustments and Data for Blower Units.... 20
Start-Up Procedure/Operation ........................ 24
Unit Components .................................. 25
Performance Data - General ......................... 26
Performance Data - Downturn Hoods .................. 27
Dimensions....................................... 28
Service/Troubleshooting............................. 30
Model/Serial Number/Replacement Parts ............... 31
Commercial Warranty........................Back Cover
INSTALLATION AND SERVICE MANUAL
gas-fired unit heaters
model PTX and BTX
6-534.1
5H0907880000
All models approved for use in California by the CEC and in
Massachusetts. Unit heater is certified for non-residential
applications.
FOR YOUR SAFETY
WHAT TO DO IF YOU SMELL GAS:
1. Open windows.
2. Do not try to light any appliance.
3. Do not touch any electrical switch; do not
use any phone in your building.
4. Extinguish any open flame.
5. Immediately call your gas supplier from
a neighbor’s phone. Follow the gas
supplier’s instructions. If you can not
reach your gas supplier, call your fire
department.
FOR YOUR SAFETY
The use and storage of gasoline or other
flammable vapors and liquids in open containers
in the vicinity of this appliance is hazardous.
The use of this manual is specifically intended
for a qualified installation and service agency.
All installation and service of these units
must be performed by a qualified installation
and service agency.
1. Improper installation, adjustment, alteration,
service, or maintenance can cause property
damage, injury, or death, and could cause
exposure to substances which have been
determined by various state agencies to
cause cancer, birth defects, or other
reproductive harm. Read the installation,
operating, and maintenance instructions
thoroughly before installing or servicing
this equipment.
2. Do not locate ANY gas-fired units in areas
where chlorinated, halogenated, or acidic
vapors are present in the atmosphere.
These substances can cause premature
heat exchanger failure due to corrosion,
which can cause property damage, serious
injury, or death.
W
ARNING
IMPOR
T
ANT
March, 2023
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