Expansion Tank - Trane Ascend ACS 140 Installation, Operation And Maintenance Manual

I I n n s s t t a a l l l l a a t t i i o o n n - - M M e e c c h h a a n n i i c c a a l l

Expansion Tank

Water piping system shall be equipped with an
expansion tank, field installed outside of pump
package. Expansion tank should be capable of the
Table 13. Expansion tank volume selection examples (diaphragm tank type)
Example Description
Maximum Pressure
Acceptance Expansion Tanks Volume Req.
1
Acceptance volume
Tank Volume Required
Maximum Pressure
Acceptance Expansion Tanks Volume Req.
2
Acceptance volume
Tank Volume Required
Maximum Pressure
Acceptance Expansion Tanks Volume Req.
3
Acceptance volume
Tank Volume Required
Maximum Pressure
Acceptance Expansion Tanks Volume Req.
4
Acceptance volume
Tank Volume Required
34
thermal expansion of a loop volume equivalent to three
(3) minute loop at rated flow. See volume calculation
methods in ASHRAE-Handbook-Equip. 2012, section
13.5.
Units
140 160
psi
30 30
gal
26 29
gal
28 36
gal
33 37
psi
45 45
gal
22 25
gal
28 28
gal
28 32
psi
125 125
gal
17 20
gal
20 20
gal
22 25
psi
150 150
gal
17 19
gal
20 20
gal
21 24
Unit Size (tons)
180 200 215
30 30 30
33 37 40
36 49 49
42 46 50
45 45 45
28 31 33
36 36 36
35 39 42
125 125 125
22 24 26
28 28 36
28 31 33
150 150 150
21 24 26
28 28 28
27 30 33
AC-SVX002D-EN
230
30
42
49
53
45
36
36
45
125
28
36
36
150
27
28
35