AC-SVX001A-EN
73
Running (Lag Compressor/Circuit Start
and Run)
The following diagram shows a typical start and run
sequence for the lag compressor and its circuit.
Figure 55.
Sequence of operation: running (lag compressor/circuit start and run)
* N o te : T h e d e c is io n to s ta g e o n o r o ff a n o th e r c o m p r e s s o r is d e te r m in e d b y
th e A v e r a g e R u n n in g C o m p r e s s o r L o a d C o m m a n d , W a te r T e m p e r a tu r e E r r o r , a n d T im e S in c e L a s t S ta g e
H o ld E X V P re -p o s itio n
(1 0 S e c o n d s )
B o th
C o m p re s s o rs
R u n n in g
C h ille r a n d B o th C irc u it
M o d e s a re “ R u n n in g ”
H o ld E X V o f L a g
C irc u it a t p re -
p o s itio n fo r 1 0 s e c
D e -e n e rg iz e
O il H e a te rs
O f L a g C irc u it
C o n tro l B o th C irc u it
C o n d e n s e r F a n s fo r
O p tim u m D iffe re n tia l
P re s s u re ,
ƒ (C p rs r S p d , O A T e m p )
6
6
6
/
//
1
1
1
2
2
2
/
//
2
2
2
0
0
0
1
1
1
2
2
2
- 1
1
1
2
2
2
/
//
1
1
1
1
1
1
/
//
2
2
2
0
0
0
1
1
1
2
2
2
E n fo rc e A ll R u n n in g M o d e D ia g n o s tic s fo r C h ille r, L e a d C o m p re s s o r a n d its C irc u it
M o d u la te E X V fo r
L iq u id L e v e l &
P re s s u re C o n tro l
M o d u la te
C o m p re s s o r
S p e e d fo r
L im it C o n tro l
M o d u la te C o m p re s s o r
S p e e d fo r
C a p a c ity C o n tro l
M o d u la te C o m p re s s o r
S p e e d fo r
C a p a c ity C o n tro l
6
6
6
6
6
/
/
/
/
/
1
1
1
1
1
2
2
2
2
2
/
/
/
/
/
2
2
2
2
2
0
0
0
0
0
1
1
1
1
1
2
2
2
2
2
-
-
-
7
7
7
7
7
/
/
/
/
/
2
2
2
2
2
4
4
4
4
4
/
/
/
/
/
2
2
2
2
2
0
0
0
0
0
1
1
1
1
1
2
2
2
2
2
R u n n in g
6/ 13/
/
2012
7
7
7
7
7
/
/
/
/
/
/
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
/
/
/
/
/
2
2
2
2
2
0
0
0
0
0
1
1
1
1
1
2
2
2
2
2
-
-
-
8
8
8
8
8
/
/
/
/
/
1
1
1
1
1
4
4
4
4
4
/
/
/
/
/
2
2
2
2
2
R u n n in g
7/ 24/
/
2012
6/ 1
1
1
1
1
1
3
3
3
3
/
/
/
/
2
2
2
2
2
2
2
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
M ilest o n
n
n
n
n
e
e
e
D
D
D
e
e
e
e
e
e
e
e
s
s
s
s
s
s
c
c
c
c
c
r
r
r
r
r
i
i
i
i
i
i
i
p
p
p
p
p
p
t
t
t
t
t
t
t
i
i
i
i
i
i
i
o
o
o
o
o
n
n
n
n
n
E x it
L im it M o d e
E n te r
L im it M o d e
1
1
1
1
1
0
0
0
0
0
/
/
/
/
/
2
2
2
2
2
8
8
8
8
8
/
/
/
/
/
2
2
2
2
2
0
0
0
0
0
1
1
1
1
1
2
2
2
2
2
-
-
-
1
1
1
1
1
2
2
2
2
2
/
/
/
/
/
1
1
1
1
1
1
1
1
1
1
/
/
/
/
/
2
2
2
2
2
0
0
0
0
0
1
1
1
1
1
2
2
2
2
2
R u n n in g
E n e rg iz e M a x im u m
C a p a c ity R e la y a fte r th e
A d ju s ta b le F ilte r T im e
(0 to 6 0 0 S e c o n d s )
C o n tin u e
R u n n in g
(B o th
C o m p rs rs
& M a x
C a p a c ity
M a x im u m C a p a c ity
S u b m o d e
/
/
/
/
/
1
1
1
1
1
1
1
1
1
1
/
/
/
/
/
2
2
2
2
2
0
0
0
0
0
1
1
1
1
1
2
2
2
2
2
-
-
-
1
1
1
1
1
0
0
0
0
0
/
/
/
/
/
3
3
3
3
3
0
0
0
0
0
/
/
/
/
/
2
2
2
2
2
0
0
0
0
0
1
1
1
1
1
2
2
2
2
2
R u n n in g
8
/
/
1 3
3
/
/
2 0
0
1 2 - 9
9
/
/
1 1 /
/
2 0
0
0
1
1
1
2
R u n n in g
L a g C irc u it:
R u n n in g L im it
9/ 11/
/
2012
8/ 13/
/
2012
1
1
1
o
0
0
0
r
/
/
/
30/
/
2012
2
2
B o th C o m p re s s o rs R u n n in g
A t o r N e a r M a x S p e e d
(U n a b le to A c h ie v e C W S P )
Содержание Ascend ACR Series
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