CAMP LEJEUNE, NORTH CAROLINA - Senate Judiciary Committee

Heat Exchangers/Converlers
a) Determine Ihe water flow pressure drop
through the heal exchanger for nil circuits. With
Ihe measured dilferonlinl pres.guro, Ihe wnler
flow can be ollainerl from tim mnr.fnchrnr’
submillnl dale ctwos or Inblns. Adj,l lhn
wler IIo to design co,diIions nnd record flow
data.
b) After nil fan-coil lype trails hnvn been pd
oporlion wilh ntdomnllc vnlv Ndly elm. wilh
flow Ihrough Ihe coil nn(! nflr lira locifio(I
flow over the coil hns bee ostnblishod,
Ihe enlerlng and leaving wnlor Iompornl.ro
all chillers, boilers, Imnl oxchnngors nnd coils.
Record and compete wilh design condilior.
Hydronlc syslems inslnlled wilh reverse
plplng are less difficull Io balnico Ihnn
direcl relum sysloms. When Inn-coil unil or
induclion traits nr uso(I wilh n cliecl
piping system, a flow clmck lhrolh nch
should be mnde, eilhor hem pmssre
ncross each coil, from pressure
acoss each ulomlic wnter vnlve, or (n
Ist resorl) Irom wlor or ir
readings Io dale.nine Ihe wnlor flow
When n reverse relearn rier pil)inl Syslm is
Inslalled, a dislHbdion flow chock cn bo
nl each sel of risos fo mnkn s,n llmI nll
d)
e)
lalrly uniform wInr lemp-nh,e II. All
eulomalic walor wives mJsl Im Ien nrl :rils
musl have the rnled nit flow whe. waler hmperalures
are being checked.
When syslems have nudIipIo coil socIion,
where possible, halnnce Ilm wnlnr flow by
IobIishing the desiIn wnler pressIro drop
across each coil. An nIIernaln melhnd
balancing mulIiiIo sqclios inv(Ivns nlii
the wnler Iompelah,es nl ench coil
with Insertion lhormomolors or
pyromeler probes, n(I ndjtJsIing the bIncinl
rocks unlit uniform Iomperalures re oblained.
Complele the proco(IJrs hy rr:nrdh(i
dnln. proprlng the TAB report Ioms lo sIinitial
as reqylred.
SECTION
b) lnkn Inlet mr+d otdlet ,waler lemperalure
.:ndi.gs; check againsl design dale and rec-
c) Gheck and record Ihe sleam pressure; check
!11o soiling mdlor operalion of nulomallc lemlmrnhre
conlrol vnlves, qlf-conlnlned conlrol
vnlvns, or prnsure reducing valves here
d)
o) Gonlhm Ihal 11 ptpo slrainers are doan.
l) Check Ihe operalion of sleam lrap8,
g) Clmck 11 automatic air venls; manually vent air
ns required.
h) Follow lira bnslc procedures for hot waler or
tnnm system TAB woik for ilems not menli.nod
nbovo.
i) l’elnm all
quiod.
0pod forms and sbmll s re-
lnc,d sgloly valve sellllgs.