Specifications
TABLE OF CONTENTS
2
SPECIFICATIONS
 Basic Description ....................................................2
  Performance & Specifi cation Data ..........................4
GENERAL SAFETY INFORMATION
  Installation Codes ...............................................2, 3
  Special Precautions ............................................2, 3
INSTALLATION
  Locating Units .....................................................5, 6
  Proper Clearances ..............................................5, 6
  Suspension of Units ............................................5, 6
  Air for Combustion .................................................6
  Gas Supply Piping/Sizing .......................................7
  Pipe Installation .....................................................8
  Blower Set-up and Adjustment ........................9, 10
The following terms are used throughout this manual, in addition to ETL requirements, to bring 
attention to the presence of potential hazards or to important information concerning the product:
DESCRIPTION
Figure 1 - Power Vented Blower Unit Heaters
See Identifi cation of Parts Section 
for unit components.
ELECTRICAL CONNECTIONS ................................11
VENTING .................................................12, 13, 14, 15
OPERATION
 Spark Ignition ..................................................16, 17
  Main Burner Orifi ce Schedule ...............................18
 Adjustments ..........................................................18
MAINTENANCE
  Servicing & Cleaning ............................................19
TROUBLESHOOTING GUIDE ...............20, 21, 22, 23
IDENTIFICATION OF PARTS ........................24, 25, 26
 Replacement Parts ...............................................27
WARRANTY ..............................................................27
INSPECTION SHEET ................................................28
UNIT NUMBER DESCRIPTION ................................29
The Power Vented Gas Blower Unit Heater is a factory 
assembled, high static pressure type, centrifugal 
blower unit designed for heavy duty applications such 
as continuous operation or where a single unit heater 
must do the entire heating job in a large area. These 
blower type unit heaters may be used with the 
standard adjustable louvers or with short duct runs 
and discharge nozzles for spot heating. These blower 
type unit heaters may be used where low sound levels 
are required. The designs are certified by ETL as 
providing a minimum of 80% thermal efficiency, and 
approved for use in California. Do not alter these units 
in any way. If you have any questions after reading this 
manual, contact the manufacturer.
Front 
View
Rear 
View
 Indicates an imminently hazardous 
situation which, if not avoided, may result in minor 
injury or property damage.
NOTICE: Used to notify of special instructions on 
installation, operation or maintenance which are 
important to equipment but not related to personal 
injury hazards.
 Indicates an imminently hazardous 
situation which, if not avoided, will result in death, 
serious injury or substantial property damage.
 Indicates an imminently hazardous 
situation which, if not avoided, could result in 
death, serious injury or substantial property 
damage.










