Burnham CHG225 Boiler User Manual


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Table 8.5: Pipe and Circulator Sizing for Boiler Loop
BOILER MODEL
(a)   
PIPE SIZE FLOW
CIRCULATOR
MODEL
BOILER LOOP
MAX EqUIVALENT
LENGTH
(in NPT) (GPM) 
CHG150 1 1/4   
CHG150 1 1/4   224
CHG225 1 1/4 12.0  
CHG225 1 1/4 12.0  



Table 8.6: Pipe and Circulator Sizing for Indirect Water Heater Loop
BOILER
MODEL
(a)    (e) 
PIPE SIZE FLOW
MAX. I.W.H.
PRESSURE
DROP

INDIRECT WATER
HEATERS
CIRCULATOR
MODEL
I.W.H. LOOP MAX
EqUIVALENT
LENGTH
(in NPT) (GPM)


CHG150 1 1/4  3.0
AL26A, AL40A
ALG40, ALG50
 26
CHG150 1 1/4  3.0
AL26A, AL40A
ALG40, ALG50
 165
CHG150 1 1/4  5.0 AL53A, AL79A  96
CHG150 1 1/4 10.0 5.0 ALG79 (NOTE 1)  
CHG225 1 1/4 9.0 3.0
AL26A, AL40A
ALG40, ALG50
 90
CHG225 1 1/4 9.0 5.0 AL53A, AL79A  97
CHG225 1 1/4 10.0 5.7
ALG79, ALG100
(NOTE 2)
 60


Table 8.7: Fitting Equivalent Lengths
FITTING
PIPE SIZE 
90 ELBOW 1 1/4 3.75
TURN IN TEE 1 1/4 
RUN OF TEE 1 1/4 2.50
SWING CHECK 1 1/4 10.00
GATE VALVE 1 1/4 
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