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MIXING VALVE PIPING
FL
S,STEr4
, T=_,IPE_£TURE
S,sUC_=
=r,ESSURE
_EDU,S,r_a
"/AL_'E
GATE
,h,ALVE
4; -.
i
,_L',
PURaE _1
[ FIGURE 7]
PRIMARY SECONDARY PIPING WITH BYPASS
M_x _ TE_IPERATURE
a£uaE
C_RCU_£TC,_
_LC,W
V£LVE _,
S_ST_4
,_LVE
P ESSdRE
R_DUO O
VA:,
O_E
_L,'E
FIGURE 8 ]
PURGE
V£LVE
BOILER INSTALLATION WITH CIRCULATORS
> i
FLO'A
CONTRC L
/_L FS
:4:#.
PRESSiJRL
REDdCING
GATe /VALVE
/VALVE
(OLD %ATER
HOT ¢_/_TER INLET
OJTLET x
THER /_L
TR/_p
qRING FOR
THER; O TAT
Pur!P "_O TROL
T/_NK CR
S_STEM
RETgRN
PrPiNG
] RELEF VALVE
PURG
V_LvE
FEED
,',ATER
ilia'ZZZZZ£
pL_iRC_E ,_
t FIGURE 9 J
BOILER INSTALLATION WITH ZONE VALVES
PRcSSiJRE
REDUCING
GATe /VALVE
/VALVE
HOT CATER
OUTLET
COLD W_TER
INLET
f\
THERMAL
TR#P
CRNG FOR
THERMOSTAT /
PUMP CONTROL
T_NK ZONE
,_L'E
S_'3TEM
RETdRN
PIPING
C:_R ,!
PURGE
'/_L' E
RELIEF /_L,E
FIGURE I0]
FEED
(,_TER
/
CHECK
VALVE [ \ /
EXDA 51ON
TANK
ill
PURGE
ALE
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