Refrigerant Pressure Relief Valves; Evaporator Piping - Trane Ascend ACR Series Installation, Operation And Maintenance Manual

Air-cooled chiller
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Refrigerant Pressure Relief
Valves
Relief
Valve
Rated
Setting
Capacity
Qty
(psig)
(lba/min)
Evaporator
2
200
17.3
Figure 14. Evaporator pass configurations
Outlet Waterbox
(Condenser removed for clarity)
N N O O T T I I C C E E
P P r r o o p p e e r r W W a a t t e e r r T T r r e e a a t t m m e e n n t t R R e e q q u u i i r r e e d d ! !
T T h h e e u u s s e e o o f f u u n n t t r r e e a a t t e e d d o o r r i i m m p p r r o o p p e e r r l l y y t t r r e e a a t t e e d d w w a a t t e e r r
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 s s c c a a l l i i n n g g , , e e r r o o s s i i o o n n , , c c o o r r r r o o s s i i o o n n , , a a l l g g a a e e o o r r
s s l l i i m m e e . .
U U s s e e t t h h e e s s e e r r v v i i c c e e s s o o f f a a q q u u a a l l i i f f i i e e d d w w a a t t e e r r t t r r e e a a t t m m e e n n t t
s s p p e e c c i i a a l l i i s s t t t t o o d d e e t t e e r r m m i i n n e e w w h h a a t t w w a a t t e e r r t t r r e e a a t t m m e e n n t t , , i i f f
a a n n y y , , i i s s r r e e q q u u i i r r e e d d . . T T r r a a n n e e a a s s s s u u m m e e s s n n o o r r e e s s p p o o n n s s i i b b i i l l i i t t y y
f f o o r r e e q q u u i i p p m m e e n n t t f f a a i i l l u u r r e e s s w w h h i i c c h h r r e e s s u u l l t t f f r r o o m m u u n n t t r r e e a a t t e e d d
o o r r i i m m p p r r o o p p e e r r l l y y t t r r e e a a t t e e d d w w a a t t e e r r , , o o r r s s a a l l i i n n e e o o r r b b r r a a c c k k i i s s h h
w w a a t t e e r r . .
AC-SVX001A-EN
Connection Size (in)
Field
Factory
(Pipe)
(Shell)
5/8
7/8–14
2-Pass Evaporators
Top View
(Condenser removed for clarity)
3-Pass Evaporators
Top View
Relief
Valve
Rated
Setting
Capacity
Qty
(psig)
(lba/min)
2
350

Evaporator Piping

Units are available with two or three pass
configurations.
Inlet Water
Connection
Outlet Water
Outlet
Connection
End View
(Non-control panel end)
(Non-control panel end)
Inlet Waterbox
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 b b e e l l o o w w c c o o u u l l d d c c a a u u s s e e
d d a a m m a a g g e e t t o o t t h h e e e e v v a a p p o o r r a a t t o o r r . .
T T h h e e c c h h i i l l l l e e d d w w a a t t e e r r c c o o n n n n e e c c t t i i o o n n s s t t o o t t h h e e e e v v a a p p o o r r a a t t o o r r
a a r r e e t t o o b b e e " " v v i i c c t t a a u u l l i i c c " " t t y y p p e e c c o o n n n n e e c c t t i i o o n n s s . . D D o o n n o o t t
a a t t t t e e m m p p t t t t o o w w e e l l d d t t h h e e s s e e c c o o n n n n e e c c t t i i o o n n s s , , a a s s t t h h e e h h e e a a t t
g g e e n n e e r r a a t t e e d d f f r r o o m m w w e e l l d d i i n n g g c c a a n n c c a a u u s s e e m m i i c c r r o o s s c c o o p p i i c c
a a n n d d m m a a c c r r o o s s c c o o p p i i c c f f r r a a c c t t u u r r e e s s o o n n t t h h e e c c a a s s t t i i r r o o n n
w w a a t t e e r r b b o o x x e e s s t t h h a a t t c c a a n n l l e e a a d d t t o o p p r r e e m m a a t t u u r r e e f f a a i i l l u u r r e e o o f f
t t h h e e w w a a t t e e r r b b o o x x . . T T o o p p r r e e v v e e n n t t d d a a m m a a g g e e t t o o c c h h i i l l l l e e d d w w a a t t e e r r
c c o o m m p p o o n n e e n n t t s s , , d d o o n n o o t t a a l l l l o o w w e e v v a a p p o o r r a a t t o o r r p p r r e e s s s s u u r r e e
( ( m m a a x x i i m m u u m m w w o o r r k k i i n n g g p p r r e e s s s s u u r r e e ) ) t t o o e e x x c c e e e e d d 1 1 5 5 0 0 p p s s i i g g
( ( 1 1 0 0 . . 5 5 b b a a r r ) ) . .
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
Connection Size (in)
Field
Factory
(Pipe)
(Shell)
Oil Separator
5/8
1/4–18
6.3
Inlet
Inlet Waterbox
(Outlet waterbox
opposite end)
End View
31

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