Operating instructions

(1) (2) (3) (4)

Fitting Description 8 Gal/min 10 Gal/min

MT040G Coil 2.60

MT050G Coil 2.60

MT079G Coil 4.40

MT100G Coil 5.70

1 ft 1" St. Pipe 0.05 0.08

1 ft 1-1/4" St. Pipe 0.02 0.03

1 ft 1-1/2" St. Pipe 0.01 0.02

1" 90 El 0.16 0.25

1-1/4" 90 El 0.06 0.09

1-1/2" 90 El 0.04 0.06

1" Run of Tee 0.05 0.08

1-1/4" Run of Tee 0.02 0.03

1-1/2" Run of Tee 0.01 0.02

1" Branch in Tee 0.26 0.41

1-1/4" Branch in Tee 0.08 0.13

1-1/2" Branch in Tee 0.05 0.08

1" Std. Ball Valve 0.12 0.19

1-1/4" Std. Ball Valve 0.06 0.09

1-1/2" Std. Ball Valve 0.02 0.03

Taco "Flo-Chek":

#220 (1") 2.18 3.41

#220 (1-1/4") 0.84 1.31

#222 (1-1/2") 0.44 0.69

Taco "Air Scoop":

#431 (1") 0.15 0.23

#432 (1-1/4") 0.05 0.08

Boiler (**)

ft wc.

Notes:

* Includes (2) 1-1/2 x 3/4 Bus hings and (2) 1-1/2 x 1 Trans itions

** The Pressure Drop Through Most Cast Iron and Steel Boilers can be Ignored

1 0.53 0.83

Honeywell V8043F1101 Zone

Valve (Cv = 8) 2.31

WORKSHEET #3: Pre ss ure Drop Calculations Through M axi-The rm Zone

3.61

Total Head Loss Through Manifold Piping and Maxi-Therm Zone =

Pressure Drop (ft head)

at:

Quantity Total

Allowance for Bushings and

Sudden Transitions (*)