Detroit Radiant Products Company HLV Series - Manual (Page 10)

10
HLV Series
Pre-Design for Condensing and Non-Condensing Systems
2.0 Design • Pre-Design
The HLV Series vacuum system can be designed as a non-condensing or a condensing system.
After reviewing the following pre-design guidelines, proceed to the appropriate section for the desired
system. If it is uncertain as to what type of system should be used, begin by designing for a
condensing system, p.12. If the completed design does not require condensing pipe then, by default,
the system will become a non-condensing system.
1 Most non-condensing systems should be controlled via a single temperature zone. If two zones are
required, it may be necessary (in most cases) that the system be designed as a condensing system
(p.12). Contact factory for additional guidelines.
2 Determine the heat load requirement of the building.
3 Available mounting heights and coverage are the two most critical variables in burner selection and
quantity.
• The mounting height of the system determines the largest burner model that can be used.
• As the design is calculated, and if it is discovered that the quantity of burners in the system will not
provide sufficient coverage, it may be necessary to use a larger quantity of lower input burners.
4 When determining system location, clearance to combustibles must be maintained. Items such as
lights, sprinkler heads, overhead doors, storage areas containing stacked materials, gas and
electrical lines, parked vehicles, cranes, and any other possible hazards must be taken into account.
Refer to Chart 1.2, p.9 for Clearance to Combustibles distances.
IMPORTANT: Fire sprinkler heads must be located at an appropriate distance from the heater.
This distance may exceed the published clearance to combustibles as posted on the heater.
Certain applications may require the use of high temperature sprinkler heads or relocation of the
heaters.
Sprinkler systems containing propylene glycol or other potentially flammable substances are not
to be used in conjunction with this heater without careful consideration for and avoidance of
potential fire or explosion hazards. For further information consult NFPA 13.
5 Reference p.14 for System Design Definitions.
2.0 Design