Ingersoll Rand Thermostat 2752X X User Manual

2752X–X  
OPERATOR’S MANUAL  
RELEASED: 11–13–74  
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE  
REVISED: 11–8–96  
(REV.D)  
FLUID REGULATOR  
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,  
OPERATING OR SERVICING THIS EQUIPMENT  
.
STANDARD CAPACITY  
STAINLESS STEEL  
DOWNSTREAM TYPE  
MAXIMUM INLET PRESSURE 750 PSI (51.7 BAR)  
1/4” INLET/OUTLET  
THIS MANUAL COVERS THE FOLLOWING MODELS  
5–125 PSI WORKING  
RANGE  
0–50 PSI WORKING  
RANGE  
10–250 PSI WORKING  
RANGE  
0–30 PSI WORKING  
RANGE  
27520–000  
27521–000  
27522–000  
27520–100  
27521–100  
27522–100  
27520–200  
27521–200  
27522–200  
27521–300  
27520–400  
27521–400  
SERVICE KITS  
Use only genuine ARO replacement parts to assure compatible presĆ  
sure rating.  
OPERATION  
To adjust back pressure, turn Y23-72-B screw clockwise with  
Y106-105 allen wrench which is furnishedwith unit. To decrease presĆ  
sure, turn Y23-72-B screw counterclockwise. (Does not apply to ModĆ  
el 27521-300.) To adjust pressure on Model 27521-300, regulate air  
pressure to back side of diaphragms using auxiliary port on 104135  
cap.  
SERVICE HINTS  
If outlet pressure rises or creeps, check (D) seat assembly and(F)  
ball for foreign material. If (D) seat assembly and(F) ball appear to  
be worn or eroded, they should be replaced. (See Figure 2)  
If material is leaking through bleedhole in 29919 housing andnut  
assembly, replace 29000 and90860 diaphragms. (Does not apply  
to Model 27521-300.  
THE ARO CORPORATION D ONE ARO CENTER  
E1994 THE ARO CORPORATION D PRINTED IN U.S.A.  
D
BRYAN, OHIO 43506–0151  
%
(419) 636–4242  
D
FAX (419) 636–2115  
PAGE 1 OF 4  
 
27520-XXX  
27521-XXX  
27522-XXX  
104135  
CAP  
-54-C (4)  
SCREW g  
4-56-C (2)  
SCREW  
g
-10-C (6)  
Y154-54-C
CAP SCRE
``B"  
``C"  
MODEL 27521-300 ONLY  
FIGURE 2  
0860 DIAPHRAGM  
``E"  
g
TO
QUE TO 10 + 2 FT LBS)  
``F"  
46 BASE  
``A"  
NOTE: INCLU
Y106-105 AL
PARTS LIST  
MODEL  
#
‘A” PORT  
‘B” SPRING  
29002 (5–125)  
29119 (0–50)  
‘C” PLATE  
‘D” SEA  
T
‘E” ROD  
‘F” BALL  
BALL MATL.  
T’CARBIDE  
T’CARBIDE  
T’CARBIDE  
T’CARBIDE  
S’STL  
27520–000  
27520–100  
27520–200  
27520–400  
27521–000  
27521–100  
27521–200  
27521–300  
27521–400  
27522–000  
27522–100  
27522–200  
1/4 N.P.T.F.  
1/4 N.P.T.F.  
1/4 N.P.T.F.  
1/4 N.P.T.F.  
1/4 N.P.T.F.  
1/4 N.P.T.F.  
1/4 N.P.T.F.  
1/4 N.P.T.F.  
1/4 N.P.T.F.  
1/4 N.P.T.F.  
1/4 N.P.T.F.  
1/4 N.P.T.F.  
29001  
29001  
29981  
29981  
29981  
29981  
29982  
29982  
29982  
29982  
29982  
29982  
29982  
29982  
29983  
29983  
29983  
29983  
29447  
29447  
29447  
29447  
29447  
29447  
29447  
29447  
29254  
29254  
29120 (10–250) 29155  
29254  
93998 (0–10)  
29002 (5–125)  
29119 (0–50)  
29001  
29001  
29001  
29254  
Y16–108  
Y16–108  
Y16–108  
Y16–108  
Y16–108  
29253  
S’STL  
29120 (10–250) 29155  
–––––––––––– 29001  
S’STL  
S’STL  
93998 (0–10)  
29002 (5–125)  
29119 (0–50)  
29001  
29001  
29001  
S’STL  
RUBBER  
RUBBER  
RUBBER  
29253  
29120 (10–250) 29155  
 
29253  
2752X-X  
PAGE 3 OF 4  
PN 97999-674  
2752X-X  
PAGE 4 OF 4  
 

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