DCS -DRH48N Electric Heater User Manual


 
Leak Testing
10
Ventilation
A minimum building ventilation rate of 4 CFM per 1000 BTU'S of installed heater
input must be provided. This rate of ventilation may be obtained through either gravity or
mechanical ventilation of the building. In conjunction with building ventilation system, ade-
quate fresh air into the building must be provided through fresh air inlets and/or building
inlets. It is recommended local code be checked to assure the ventilation system and heat
installation are in compliance with local and/or state code
When checking for gas leaks, do not use an open flame. Use a soap and water
solution. Installation of 1/8
NPT plugged tapping, accessible for test gage connections, is
required upstream of the gas supply connection to the heater. NOTE:
Gas connections on
the heater are leak tested at the factory prior to shipment.
Precautions:
Periodically check the whole gas system for leaks or immediately check if the smell of
gas is detected. Extinguish all open flames
Never leak test while smoking.
Do not use heater until all connections have been leak tested and do not leak.
When leak testing, refer to the connections diagrams
Only those parts recommended by the manufacturer should be used.
Substitution can void warranty.
Leak Test:
Make a soap solution of one part liquid detergent, and
one part water. The soap solution can be applied with a spray
bottle, brush or rag, soap bubbles will appear where a leak is
present.
Turn the gas supply
on check for leaks at leak points.
If a leak is present, turn off supply, tighten any leaking fittings,
turn gas on and recheck.
Note: There is a manual shut-off lever on the internal heart
control valve/regulator. This lever is shipped in the
ON position (Default position).
"ON" POSITION
FACTORY DEFAULT
"OFF"