background image

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
 
 

REPAIR PARTS

 

ITEM DESCRIPTION PART 

NUMBER 

QUANTITY 

    1

¼

 HEX 

NUT, 

1/4-28 

036602A1800 

    2

¼

 SEALING 

WASHER 

037723A0001 

3 COVER 

027930B0001 

4 ADJUSTING 

SPRING 

ASSEMBLY 

081249A0001 

5 WASHER 

027947A0001 

6 HEX 

NUT, 

1/4-20 

027939A0001 

7 WASHER 

027946A0001 

    8

¼

 GASKET 

028566A0001 

9 STEM 

028559A0001 

10 SPACER 

029707B0001 

    11

¼

 O-RING 

036240N0010 

12 MULTIPLE 

INPUT 

CASE 

028562A0001 

    13

¼

 GASKET 

028567A0001 

14 TRANSFER 

PLATE 

029716A0001 

15 TOP 

SPACER 

028555A0001 

¼

 

VALVE ASSEMBLY (contains items 16 thru 22) 

081650A0001 

16 O-RING 

036240N0014 

17 ADJUSTABLE 

SEAT 

029352A0001 

18 VALVE 

026059C0001 

19 VALVE 

SPRING 

029359A0001 

20 SPRING 

RETAINER 

029354A0001 

21 O-RING 

036240N0018 

22 VALVE 

COVER 

029353A0001 

   23

¼

 GASKET 

029356A0001 

   24

¼

 CAP 

029355A0001 

   25

¼

 O-RING 

036240N0119 

26 TUBE 

SEE 

TAB 

27 EXHAUST 

RING 

029715A0001 

28 

DIAPHRAGM RING 

031766A0001 

SEE TAB 

   29

¼

 BALANCING 

DIAPHRAGM 

028561A0001 

SEE 

TAB 

30 EXHAUST 

PLATE 

027929A0002 

31 

PRESSURE PLATE 

028571A0001 

SEE TAB 

32 

PRESSURE PLATE 

028569A0001 

SEE TAB 

   33

¼

 EXHAUST 

SEAT 

028557A0001 

34 SUPPORT 

RING 

028565A0001 

35 BASE 

027668C0001 

36 SCREW 

SEE 

TAB 

37 

HEX NUT, KEPS, 1/4-20 (not shown) 

036603A0019 

38 

MOUNTING BRACKET (not shown) 

029139A0001 

39 

PIPE PLUG, 1/4 NPT (not shown) 

028564A0001 

SEE TAB 

40 

PIPE PLUG, 1/16 NPT (not shown) 

525GD001 

Note: 

Repair kits are available for rebuilding relay. 
Repair kits contain parts marked thus 

¼

TABULATION 

DETAIL 

MODEL 

26 

28 29 31 32 

36 

39 

CR-103-A2 

028556A0006 

3 reqd 

5 reqd  

2 reqd 

 

036617E3600 

5 reqd 

CR-103-A3 

028556A0005 

5 reqd 

7 reqd  

4 reqd 

 

036617E3800 

4 reqd 

CR-103-A4 

028556A0004 

7 reqd 

9 reqd 

5 reqd 

1 reqd 

036617E3900 

3 reqd 

CR-103-A5 

028556A0003 

9 reqd 

 11 reqd  

7 reqd 

1 reqd 

036617E4000 

2 reqd 

CR-103-A6 

028556A0002 

11 reqd 

 13 reqd  

8 reqd 

2 reqd 

036617E4100 

1 reqd 

CR-103-A7 

028556A0001 

13 reqd  

15 reqd 

9 reqd 

3 reqd 

036617E4200 

 

Summary of Contents for CR-103-A Series

Page 1: ...172 Rev A Note to installer Before installing read instructions carefully and record model number After installing give this manual to operating personnel or see that it is filed for future reference 1602 Mustang Drive Maryville Tennessee 37801 Phone 865 981 3100 Fax 865 981 3168 ...

Page 2: ...2 NOTES ...

Page 3: ...sig 1 2 bar divided by the number of input signals OVERLOAD PROTECTION 100 psig 7 bar will not damage unit AMBIENT TEMPERATURE LIMITS 40 F to 180 F 40 C to 82 C CONNECTIONS 1 4 female NPT for input output and supply WEIGHT 2 input signals 2 lb 0 91 kg 7 input signals 3 5 lb 1 59 kg C PERFORMANCE DATA ULTIMATE SENSITIVITY 0 1 of full range LINEARITY 1 of full range HYSTERESIS Less than 1 of full ra...

Page 4: ...he air lines If more secure mounting is desired use the mounting bracket furnished as shown in Figure 1 Use two 1 4 bolts toggle bolts or wood screws as required by the installation Bracket may be removed or inverted by removing two lock nuts C CONNECTIONS The input supply and output ports are 1 4 female NPT Make the air connections to the proper ports as shown in Figure 1 The air supply must be c...

Page 5: ...s be dirty it may be necessary to clean the surfaces of the Valve 18 and the Valve Seats A and B If continued difficulty is experienced from dirt moisture oil etc suitable filters should be provided in the supply lines If the control pressure does not go to minimum output pressure or zero or if the exhaust appears to be leaking follow the instructions below refer to Figure 3 except as noted 1 Remo...

Page 6: ...pherical Surfaces C in Figure 3 must be smooth and regular 3 Inspect the Valve Seats A and B in Figure 3 The surfaces must be clean and smooth with no scars or surface irregularities 4 Inspect Diaphragms 29 for holes or worn spots which might permit air leakage 5 Install the Valve 18 Valve Spring 19 and Spring Retainer 20 and make sure that the Valve Spring 19 is seating the Valve 18 properly 6 Re...

Page 7: ...G 029715A0001 1 28 DIAPHRAGM RING 031766A0001 SEE TAB 29 BALANCING DIAPHRAGM 028561A0001 SEE TAB 30 EXHAUST PLATE 027929A0002 2 31 PRESSURE PLATE 028571A0001 SEE TAB 32 PRESSURE PLATE 028569A0001 SEE TAB 33 EXHAUST SEAT 028557A0001 1 34 SUPPORT RING 028565A0001 1 35 BASE 027668C0001 1 36 SCREW SEE TAB 4 37 HEX NUT KEPS 1 4 20 not shown 036603A0019 2 38 MOUNTING BRACKET not shown 029139A0001 1 39 P...

Page 8: ...nnessee 37801 Telephone 865 981 3100 Fax 865 981 3168 http www robertshaw thomasregister com http www robertshawindustrial com Exports Invensys Appliance Controls 1701 Byrd Avenue P O Box 26544 Richmond Virginia 23261 6544 Telephone 804 756 6500 Fax 804 756 6561 Q 1343 11 04 Printed in U S A ...

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