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CALEFFI DISCAL NA551 Series, Installation, Commissioning And Servicing Instructions

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CALEFFI DISCAL NA551 Series Installation, Commissioning And Servicing Instructions Download Page 9

9

Installation

DISCAL units may be used in heating or cooling systems to ensure the progressive removal of 
air which is continuously formed. The units should preferably be installed after the boiler and on 
the pump suction side, as these are the points where the formation of micro-bubbles is greatest. 
DISCAL  air separators for horizontal pipes must be installed vertically. Flow direction of the DISCAL 
air separator is bidirectional (flow in either direction is permitted), except for the 5517 series rotating 
collar version. For the 5517 series, the correct flow direction is shown by an arrow on the T-fitting. 
Turn the T-fitting by hand to correctly orient it to install in either horizontal or vertical piping. In 
installation conditions where inspection is not possible, it is recommended that the venting valve 
cap is replaced by a Caleffi Code R59681 hygroscopic safety vent. The standard replacement cap 
code is 59119.

Tmax 250 F

Pmax 150 psi

Tmax 220 F

Pmax 150 psi

BI-DIRECTIONAL

38

46

6.0

1

Tma

x 250

F

Pma

x 

150

 ps

i

Tma

x 22

0

F

Pma

x 

150

 ps

i

BI-DIRECTIONA

L

3846

6.01

T

ma
x
 250

F

P

ma
x
 150
 ps

i

T

ma
x
 22
0

F

P

ma
x 150
 ps

i

BI-DIRECTIONA

L

38466.01

Tma

x

 250F

Pma

x

 150

 ps

i

Tma

x

 220

F

Pma

x

 150

 ps

i

BI-DIRECTIONAL

38

46

6.0
1

Tmax 250 F

Pmax 150 psi

Tmax 220 F

Pmax 150 psi

BI-DIRECTIONAL

38

46

6.0

1

Tma

x 250

F

Pma

x 

150

 ps

i

Tma

x 22

0

F

Pma

x 

150

 ps

i

BI-DIRECTIONA

L

3846

6.01

T

ma
x
 250

F

P

ma
x
 150
 ps

i

T

ma
x
 22
0

F

P

ma
x
 150
 ps

i

BI-DIRECTIONA

L

38466.01

Tma

x

 250F

Pma

x

 150

 ps

i

Tma

x

 220

F

Pma

x

 150

 ps

i

BI-DIRECTIONAL

38

46

6.0
1

Tmax 250 F

Pmax 150 psi

Tmax 220 F

Pmax 150 psi

BI-DIRECTIONAL

38

46

6.0

1

Tma

x 250

F

Pma

x 

150

 ps

i

Tma

x 22

0

F

Pma

x 

150

 ps

i

BI-DIRECTIONA

L

3846

6.01

T

ma
x
 250

F

P

ma
x
 150
 ps

i

T

ma
x
 22
0

F

P

ma
x 150
 ps

i

BI-DIRECTIONA

L

38466.01

Tma

x

 250F

Pma

x

 150

 ps

i

Tma

x

 220

F

Pma

x

 150

 ps

i

BI-DIRECTIONAL

38

46

6.0
1

Tmax 250 F

Pmax 150 psi

Tmax 220 F

Pmax 150 psi

BI-DIRECTIONAL

38

46

6.0

1

Tma

x 250

F

Pma

x 

150

 ps

i

Tma

x 22

0

F

Pma

x 

150

 ps

i

BI-DIRECTIONA

L

3846

6.01

T

ma
x
 250

F

P

ma
x
 150
 ps

i

T

ma
x
 22
0

F

P

ma
x 150
 ps

i

BI-DIRECTIONA

L

38466.01

Tma

x

 250F

Pma

x

 150

 ps

i

Tma

x

 220

F

Pma

x

 150

 ps

i

BI-DIRECTIONAL

38

46

6.0
1

CHILLER

Summary of Contents for DISCAL NA551 Series

Page 1: ...k valve AC with service check 551 series DISCAL air separator for horizontal pipes in brass with drain Sizes 1 1 1 2 NPT female 1 1 1 2 integral sweat A without service check valve AC with service che...

Page 2: ...ale union lay length press connection see page 4 and 5 drain 1 2 NPT female 5517 series 1 2 straight female Steel air separator Materials body epoxy resin painted steel internal element 304 stainless...

Page 3: ...his manual for the user SAFETY INSTRUCTION This safety alert symbol will be used in this manual to draw attention to safety related instructions When used the safety alert symbol means ATTENTION BECOM...

Page 4: ...53 8 93 4 31 2 4 9 551795A 3 4 SWT 6 23 16 53 8 93 16 31 2 4 9 551706A 1 NPT 63 4 23 16 53 8 93 4 31 2 4 9 551766A 1 press 63 4 23 16 53 8 93 4 31 2 4 9 551796A 1 SWT 7 23 16 53 8 93 4 31 2 4 9 551716...

Page 5: ...16 69 16 81 4 1 2 4 9 551008A 11 2 NPT 47 8 23 16 69 16 81 4 1 2 4 9 551009A 2 NPT 51 8 23 16 69 16 81 4 1 2 5 5 551028A 1 SWT 51 16 23 16 53 4 71 2 1 2 3 7 551035A 11 4 SWT 53 16 23 16 65 16 81 4 1...

Page 6: ...minimum of 3 wall clearance to accommodate insulation if used Code A B C D E F G H J Wt lb 551050A 2 133 4 1 143 4 1915 16 65 8 213 16 6 65 16 34 551060A 21 2 133 4 1 143 4 1915 16 65 8 213 16 7 65 16...

Page 7: ...1 2 56 335 NA551250A 10 41 3 4 26 8 1 2 22 5 8 38 1 4 110 617 NA551300A 12 46 1 2 30 8 1 2 25 3 8 43 3 8 169 871 These models are ASME tagged and registered with the National Board of Boiler and Press...

Page 8: ...0 4 0 025 0 03 0 02 6 7 8 9 12 14 16 18 25 30 35 40 45 60 70 80 90 120 140 160 180 250 400 450 300 350 600 700 800 900 1 2 1 4 1 6 1 8 2 6 4 5 1 2 1 4 1 6 1 8 2 69 83 97 111 125 2000 1200 1400 1600 1...

Page 9: ...i BI DIRECTIONAL 38466 01 T max 250 F P max 150 psi T max 220 F P max 150 psi BI DIRECTIONAL 38466 01 T max 250 F P max 150 psi T max 220 F P max 150 psi BI DIRECTIONAL 38466 01 T max 250 F P max 150...

Page 10: ...g due to accumulating residue in the flowing fluids 6 5 5 3 4 4 3 6 5 4 59829 even when the DISCAL air separator is not installed perfectly vertical A replacement air vent assembly for the DISCAL bras...

Page 11: ...6 5 5 3 4 4 3 6 4 4 4 11...

Page 12: ...62100 Small anti vacuum vent cap 59119 Replacement DISCAL air vent cap 10 12 18 12 Insulation shells for brass DISCAL series for horizontal pipes These are not designed for the compact or 517 series r...

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