Table of Contents
Advertisement
DES3
Series
High Altitude Operation
Explosion hazard. This heater must be converted by a trained gas installation and
service personnel only. Failure to comply could result in personal injury, asphyxiation,
death, and fire or property damage.
High altitude operation of this tube heater is approved, without modification, for elevations up to 6,000 feet
(1,829 m) above MSL (sea level) in the United States. If the heater is being installed at an elevation above
6,000 ft, the input rate will have to be de-rated to ensure proper operation. The deration is achieved by a
gas orifice change. Contact the factory for installations above these elevations.
Prior to leaving the Job Site
Prior to leaving the job site, verify that:
9 Service access door is properly secured to the unit.
9 The heater is clear of any objects that would interfere with the proper air circulation or that
violate the listed clearance to combustibles.
9 Manual gas shut off is ON.
9 Electrical power is ON.
9 Thermostat is set to desired temperature.
9 Properly dispose of all packaging materials.
9 Check to be sure you have all of your tools.
9 Leave the Installation, Manual with the owner or end user.
WARNING
!
51
3.0
Installation
•
High Altitude Operation
Advertisement
Table of Contents
