Trane RAUJ-C20 Installation, Operation And Maintenance Manual page 58

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 — — E E V V P P
Braze Plate (BPHE) Chiller
Evaporator water inlet and outlet types, sizes and
locations are shown in drawings in Dimensions and
Weights chapter. Installation of a field provided 1/2" x
14 NPTE stainless steel or PVC plug is required.
Strainer
Install a strainer in the water supply line to protect the
chiller from plugging with system piping debris.
Table 17. Chiller water pressure drop, Ft H2O
Flow
(GPM)
20
25 3.7
30 5.2
35 6.9
40 8.8
45 10.9
50 13.3
60 18.5
70 24.6
80
90
100
120
140
160
180
200
240
280
320
360
400
Chilled Water Flow Switch
N N O O T T I I C C E E
E E v v a a p p o o r r a a t t o o r r D D a a m m a a g g e e ! !
F F a a i i l l u u r r e e t t o o f f o o l l l l o o w w i i n n s s t t r r u u c c t t i i o o n n s s c c o o u u l l d d r r e e s s u u l l t t
e e v v a a p p o o r r a a t t o o r r d d a a m m a a g g e e . .
T T o o p p r r e e v v e e n n t t e e v v a a p p o o r r a a t t o o r r d d a a m m a a g g e e , , d d o o n n o o t t u u s s e e w w a a t t e e r r
f f l l o o w w s s w w i i t t c c h h t t o o c c y y c c l l e e t t h h e e s s y y s s t t e e m m . .
58
25 30 40
3.2
4.2
5.4 3.1
6.7 3.9
8.2 4.8 5.3
11.4 6.7 7.5
15.2 8.9 10.1
19.4 11.4 13.0
24.1 14.2 16.3
17.3 19.9
28.3
Strainers should be installed as close as practical to the
heat exchanger water inlet (the remote chiller
accessory kit includes strainer and piping to connect
with BPHE). A field provided blow down valve
(recommended) or plug must be installed in strainer
cleanout if not present.
Size, Tons
50 60
4.1
5.5
7.1 5.0
8.9 6.3
10.9 7.7
15.4 10.9
20.7 14.6
26.7 18.9
23.6
N N O O T T I I C C E E
H H e e a a t t E E x x c c h h a a n n g g e e r r a a n n d d C C o o m m p p r r e e s s s s o o r r
D D a a m m a a g g e e ! !
W W a a t t e e r r f f l l o o w w r r a a t t e e s s b b e e y y o o n n d d t t h h e e h h e e a a t t e e x x c c h h a a n n g g e e r r l l i i m m i i t t s s
c c o o u u l l d d r r e e s s u u l l t t i i n n p p e e r r m m a a n n e e n n t t d d a a m m a a g g e e t t o o t t h h e e h h e e a a t t
e e x x c c h h a a n n g g e e r r a a n n d d / / o o r r c c o o m m p p r r e e s s s s o o r r . .
D D o o n n o o t t o o p p e e r r a a t t e e o o u u t t s s i i d d e e r r e e c c o o m m m m e e n n d d e e d d f f l l o o w w r r a a t t e e s s . .
80 100 120
4.3
6.1 3.2
8.2 4.4
10.6 5.6 4.8
13.2 7.1 6.1
16.2 8.7 7.4
22.9 12.3 10.6
16.5 14.2
21.3 18.3
26.7 23.0
28.2
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