Specifications

Section-2 Installation
November 11, 2013
2‐8
Copyright©2013,HarrisBroadcast
WARNING:Disconnectprimarypowerpriortoservicing. 888‐2628‐300
Note
Minimize the use of pipe joint compound, teflon tape and soldering flux. Overuse of these items make the
system more difficult to clean.
STEP 2 Onlongrunsofpipeorhose,slopetherun(towardadrainpoint)atarateof1
to2inchesper100feettofacilitatedrainingorbleedingthesystem.
STEP 3 Installthesystem(automatic)airpurger,showninFigure5‐29onpage5‐35,
itshouldbeinstalledatthehighestpointinsupplyline.Thesystemairpurger
shouldbevisiblefromthetransmitterareasinceitwillneedtobemonitored
frequentlyforcoolingfluidlevelandairbubbles.Itistypicallyinstalledaspart
ofthebypassassembly.
STEP 4 Installmanualdrainvalvesateachlowpointintheplumbingsystem.These
drainvalvesallowtheclosedloopsystemtobethoroughlydrainedofliquidas
requiredforflushingordrainingthesystem.
Caution
BEFORE ROUTING PLUMBING BE SURE THAT SPACE IS RESERVED FOR
ROUTING OF RF TRANSMISSION LINE. IT IS IMPORTANT TO MINIMIZE THE
NUMBER OF RF COMPONENTS IN THE SYSTEM AND TO AVOID BACK TO
BACK ELBOWS.
Onceallpipe,hoseandcomponentinstallationiscompleted,thesystemisreadyforleaktests.
Caution
ISOLATE THE EXPANSION (PRESSURE) TANK PRIOR TO PRESSURE
TESTING BY CLOSING THE BALL VALVE AT THE TANK INPUT. CLOSING
THE VALVE PROTECTS THE INTERNAL BLADDER FROM DAMAGE DURING
THE INITIAL PRESSURE TESTING.
Caution
DO NOT PRESSURE TEST THE PIPING OR HOSE SYSTEM TO HIGHER THAN
15 PSI.
Caution
DO NOT USE THE SCHRADER VALVE ON THE EXPANSION TANK TO
PRESSURIZE THE SYSTEM. THE TANK HAS BEEN PRESSURIZED AT THE
FACTORY AND IT SHOULD NOT BE CHANGED.
STEP 5 Iffeasible,chargesystemwith15PSIGofairandthenapplywater/soap
solutiontoeachjointandlookforbubbles.Repairleaksasrequireduntil
systemholdspressure.Depressurizethesystemandopentheexpansiontank
ballvalve.Chargethecoolingsystemwithpurewaterusingachargepumpor

withcirculatingpumpBifanHEpumpmoduleisbeingused.Charginga
systemwithcirculatingpumpBisoutlinedintheHEPumpModuleTechnical
Manual888‐2625‐001whichshipswiththepumpmodule.
Caution
IF THE SYSTEM IS INITIALLY CHARGED WITH PURE WATER DO NOT
ALLOW IT TO BE EXPOSED TO TEMPERATURES BELOW FREEZING.
FREEZING WATER IN THE COOLING SYSTEM WILL RESULT IN DAMAGE TO
THE SYSTEM COMPONENTS.
STEP 6 Endofprocedure.