Operating instructions

33D4051 21
WARNING
Test Port “A”
CHECKING GAS PRESSURE
Testallgasjointsfromthegasmetertotheheatervalveforleaks
usingagasanalyzerorsoapandwatersolutionaftercompleting
connection. DO NOT USE AN OPEN FLAME.
Checkthegaspressurewiththeapplianceburningandthecontrol
set to HIGH.
Opencontrolaccessdooratbottomfrontofunittondvalveand
regulatorreferredtobelow.
MANUAL CONTROL (Figure 28)
The pressure regulator is preset and locked to dis-
couragetampering.Ifthepressureisnotasspecied,
replacetheregulatorwiththecorrectpartfromtheparts
list in this manual.
Remove1/8"NPTplug,locatedonsideofregulator
body.Installttingandtubingtopressuregauge.After
takingpressurereading,reinstalltestplug.Checkfor
gasleaks.
MILLIVOLT CONTROL (Figure 30)
Thevalveregulatorcontrolstheburnerpressurewhich
should be checked at the pressure test point.
Turn captured screw counter clockwise two or three
turnsandthenplacetubingtopressuregaugeovertest
point.(Usetestpoint“A”closesttogasinlet).After
taking pressure reading, be sure and turn captured
screwclockwisermlytoreseal.Donotovertorque.
Checkforgasleaks.
Figure 28 - Pressure Test Point Location
Figure 30 - Pressure Test Point Location
NPT Test Plug
WARNING
Connecting directly to an
unregulated propane/LPG tank
can cause an explosion.
Test
Points
THERMOSTAT CONTROL (Figure 29)
Turn captured screw counter clockwise two or three
turnsandthenplacetubingtopressuregaugeovertest
point (Use test point closest to control knob). After
taking pressure reading, be sure and turn captured
screwclockwisermlytoreseal.Donotovertorque.
Checkforgasleaks.
Figure 29 - Alternate Test Point Location for Thermostat
Control Unit