GRBSSÊÏ
1�.
h
-
.,.-
-..-
-
--
.,.-
-
-
�
-
-
i
9..---.----.----t---+--.----,.----�
j
�
ü
RI
C.
RI
u
0,
s
ëii
ai
C)
.:::
,.,
h, 2v
J:
«'
50
t;"
70 6{, 90100
Compt-sor
type
Built-in
volume ratio
q>.
Pos,oon of slrdo vafve (% of fuily closed)
GSL6S
GSL85
GSL12S
GSL165
GSL180
GSL.240
GSL-480
2 2-2.6-3 7
4,8
2.2
·
2
6-
3
7
4.8
2.2 2.6-3;
48
2.2 2.6-3.7
4.8
2.2· 2.6-3 7
4,8
2.2-
2.6 • 3.7
48
2.2-2.6 · 3 7
4
.
8
1
1)
0
0
1
C
0
'
m,n
'
0
1
Ó'
,10
ló
1
1
.
1
1
o!
1 1
0
;
mm
10
,'
IC
rn
►
� :01
10
10
10
IC
1 101
,1
lS
10
30
:s
'
20
'
JO
ro
s
30
'
{501
25
30
1
30\h,
1820
' 1
'
1401
19 70
30
(30)
1
l�
lO
JO
1
(6S)
JO
1
1
20 23
1 t4!>)
30
25
30
(�0)
18 20
25
;a
i�
20
1
•8
4"
-
e-0-
29 "Jó
l
J
(50)
54
62
(ilS)
(35)
30
(.:s,
30
6?(80)
,,
45
mait.
(85)
6/
L
hgures betwl.'!Cln brackets 1ntica19
sealt.>
end
the
ome m sooonds to ron trom rrwn.
lndleator scale reading 1n revolut1ons
to max.. capacftY and v,sa��a
FIG. 3.78 PART-LOAO REFRIGERATING CAPACITY
Bolh the min and max. capacity limit switch
may
also be
used to indicate, by two signa! lamps, whe1her lhe capacity
control adjustmg device
is
e1ther mo11ing to
min.
or
max.
capacity (one of lhe signa!
l
a
m
ps
on)
or
is
stanoing shit
(bo1h
lamps off).
The
free
end
of
1he
cam
post is provided w1th
an
1nd1cator
•
pointer
(13)
on
a
scale
(12)
·,
vislble
from the outslde
through a s1ght glass in the end faoe of the housing and Indi•
callng the number of revolutlons completed by
the
output
shaft (and thus by the regulallng shah
et
the oompressor)
from the m1nImum lead posIhon of the shde vaJve 1ns1de the
compressor. corresponding with the zero position of the
p
ointer
.
When the sllde valve 1s at
,ts
maximum lead
(fully
closed end stop) posilion, the pointer has not necessanly
reached the end of the scale but ,s somewhNe
in
-
hetweQ
n
,
depending on compressor
type
and
built-an
volume
·atio.
The reason 1s. that !here are only two standard pos1t1on
md
I
�tors ava1lable with
a
scale ranging from O to 30 (pnnted
mbcrs
O 10. 20
and 30) ano from O to 62 (onn.ed num
bers
0, 15, 30, 45
and
62)
revolut1ons respect111ely
Refer to the graph in figure 3.7B whIch represents U,e rela-
11on between the varrous scale readings in revolutions, the li
nea• displacement (pos1llon) of the slide valve and lhe
correspondtng refrigerat1ng capac1ty. bo!h expressed in pe
r
centage of full-laad
Fc·
exa:note: A compressor model
GSL240
with built-in vol
ume
ratio of
3.7
only neeos
38
ol the 62
revolutions avail,
able on the indicator to move
frorn
minimum to maximum
capacny. So aocord1ng to figure
3.78.
al
50%
slide valve po
s111on
(=48",.,
capacny) !he indicator pointer will show about
19 and not 31 = 50% of 62.
OPTIONAL COMPONENl S
(refer
to
figure
3.8A.
overleaf}
The standard eleclrtc shde valve actuator may have been
completed with hP.
following opt1onal supplemen1s·
-
Up
10 three extra mîcro :.w1tches
with
correspo11ding
ad
JUStable cams, htted
on
top of the standard limit switches
92.01
Compressor Package GSLP
Page 3.9
