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5

Table 1

Temperature Stabilization Adjustment Table

(Approximate setting in degrees of rotation - see illustration below)

* Steam pressure measured at heat exchanger inlet

Inlet

water

temp

Set

Point

(ºF)

RH-30

RH-60

 
 
 

40ºF 

 
 

*

2 psig 

5 psig 

10 psig 

15 psig 

2 psig 

5 psig 

10 psig 

15 psig

120

25 

24 

23 

22 

15 

14 

13 

12

140

30 

30 

30 

30 

30 

28 

25 

20

150

30 

 30

 30

 30

 30

 30

27

25

160

30 

30 

30 

30 

30

180

30 

30 

30 

30 

30

 
 

60ºF 

 

120

22 

21 

20 

19 

12 

11 

10 

9

140

25 

24

23 

22 

15 

14 

13 

12

150

28 

27 

27 

26 

23 

21 

18 

16

160

30 

30 

28 

25 

20

180

30 

30 

30 

30 

30

30˚

Hole through Control Rod 
– insert pin and rotate for 
stabilization adjustment

Control Rod – Slides left to 
right for base temperature 
settiing

Blending Valve

Summary of Contents for RediHeat RH-120

Page 1: ...temperature stabilization adjustment table 5 2 3 RH 90 120 temperature stabilization adjustment table 6 2 4 Rediheat with recirculation system start up 7 3 Maintenance 7 3 1 Blending valve disassembly...

Page 2: ...h extremes of temperature 1 5 Hazardousenvironmentaroundtheproduct Consider explosionriskareas lackofoxygen e g tanks pits dangerous gases extremes of temperature hot surfaces fire hazard e g during w...

Page 3: ...ed in writing includingHealthandSafetydatasheetsrelating to any substances identified as hazardous or potentially hazardous 1 17 Working safely with cast iron products on steam Cast iron products are...

Page 4: ...compression fitting on the sensing line at the upper diaphragm cover Permit water to flow until free of any air Retighten fitting 4 A steam side vent valve should be installed on either of the vent co...

Page 5: ...ig 2 psig 5 psig 10 psig 15 psig 120 25 24 23 22 15 14 13 12 140 30 30 30 30 30 28 25 20 150 30 30 30 30 30 30 27 25 160 30 30 30 30 30 180 30 30 30 30 30 60 F 120 22 21 20 19 12 11 10 9 140 25 24 23...

Page 6: ...10 psig 15 psig 120 25 24 23 22 15 14 13 12 140 27 27 25 24 22 22 23 20 150 30 30 30 30 27 27 27 25 160 30 30 30 30 30 30 30 30 180 30 30 30 30 30 30 30 30 60 F 120 22 21 20 19 12 11 10 9 140 25 24 23...

Page 7: ...agm cover 5 Note position of notch in cover relative to the valve body 3 Disconnect Victaulic couplings at all valve connections and remove the valve 4 Loosen and remove casing bolts 14 and lift off t...

Page 8: ...e heat exchanger by disassembling the four Victaulic couplings 2 Attach the 3 8 nipple supplied with the acid cleaning system adaptor kit to one of the adaptors 3 Insert this adaptor into the heater c...

Page 9: ...p check the setting of the thermostatic valve The thermostatic element setting should be approximately 10 F below the normal operating temperature of the RediHeat For example if 120 F is the desired l...

Page 10: ...s with adjustable elements are also available see section D Water flow in the system is governed by the temperature of the recirculating loop When the loop is at the desired temperature the flow of re...

Page 11: ...he water heater temperature variations up to 10 F may be experienced in the loop temperature 4 If an adjustable diverting valve has been fitted the recirculated temperature should be adjusted with all...

Page 12: ...SPIRAX SARCO INC 1150 NORTHPOINT BLVD BLYTHEWOOD SC 29016 PHONE 803 714 2000 FAX 803 714 2200 www spiraxsarco com global us Spirax Sarco Applications Engineering Department Toll Free at 1 800 883 441...

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