Honeywell v4055 用户手册

7

60-2309—1

3

Only a trained, experienced, flame safeguard 

technician should check out and service this control.

After the installation is complete, cycle the valve several times 

with the manual fuel shutoff cock closed before testing the 

system in actual operation.

The actuator is not field repairable except for replacing the 

Auxiliary Switch, Max Flow Limit Switch or Proof-of-Closure 

Switch. See Installation section for procedure. Do not 

disassemble the valve actuator.

If the actuator fails to operate properly, replace it.

1. Turn off the gas supply at the manual shutoff valve 

located upstream from the valve(s) being serviced. 

2. Shut off all electrical power to the valve actuator(s). 

3. Mark and disconnect the wires from the actuator termi-

nals. Remove conduit and disengage the damper link-

age assembly (if applicable).

4. Loosen the two set screws from the valve to lift off the 

actuator.

5. If the actuator is to be replaced and it did not leak 

hydraulic fluid, skip to Step 11.

NOTE: It is good practice to inspect the inside of the 

valve whenever the actuator is replaced. To do 

so, remove the bonnet assembly, inspect the 

valve and bonnet. If all is well, proceed to Step 7.

6. If the actuator leaked hydraulic fluid onto the valve (the 

fluid is red), it must be cleaned off from the valve and 

bonnet assembly.

a. Wipe off the outer valve body.

b. Remove the valve bonnet bolts and lift off the bonnet.

NOTE: V5055/V5097C and E Valves have additional 

internal springs that will push the bonnet up as 

the bolts are loosened.

c. Inspect the inside of the valve.

entire valve must be replaced. See Table 8 below for 

d. If the inside surfaces are clear of hydraulic fluid, 

clean the bonnet assembly and be sure to remove all 

hydraulic fluid from the inside and outside of the 

actuator mounting curb. This is the “cup-like” area 

around the valve stem. Avoid using a cleaning solu-

tion as it may damage the rubber seals used in the 

valve.

7. If the valve bonnet assembly is in good condition and is 

not replaced, replace the bonnet seal. Do not reuse the 

old bonnet seal. See Table 9 below for the seal number.

8. Coat seals with grease provided and position in valve 

body/bonnet assembly.

9. Carefully seat the bonnet assembly on the valve body. 

Be sure the seals are in their proper position. On those 

valves with a spring below the disc, be sure the spring is 

centered in the indentation on the inside of the valve 

body.

10. After positioning the bonnet assembly, replace the 

screws removed earlier. 

NOTE: When replacing the bonnet assembly on the 4-

inch valve, draw it evenly into the valve body. 

Finger-tighten the eight bolts. Draw the bonnet 

assembly into the valve by tightening, in order, 

bolts 1, 5, 7 and 3 (two turns each). Repeat until 

the bonnet assembly is seated. Tighten the 

remaining bolts. Torque the bolts as follows:

11. Remount the actuator on the bonnet assembly. Tighten 

the two set screws (50-60 inch pounds).

12. Replace the damper crank arm assembly.

13. Re-attach the wires removed from the actuator terminals 

and turn on the electrical power.

14. With the gas still off, cycle the actuator to check for 

proper mechanical operation.

Be sure to read and follow all instructions that come 

with the actuators, valves, seal and bonnet kits.

3/4 in. (19 mm) to 1-1/2 in. (38 mm)

55 in.-lb.

2 in. (51 mm) to 4 in. (102 mm)

75 in.-lb.

133398AA

V5055A

V5097A

3/4, 1, 1-1/4, 1-1/2

133417AA

2, 2-1/2, 3

136911AA

(On-Off)

4

133398BA

V5055B

V5097B

3/4, 1, 1-1/4, 1-1/2

133417BA

2, 2-1/2, 3

136911BA

(Characterized Guide)

4

133398CA

V5055C

V5097C

3/4, 1, 1-1/4, 1-1/2

133417CA

2, 2-1/2, 3

136911CA

(Proof of Closure)

4

136308AA

V5055D

V5097D

3/4, 1, 1-1/4, 1-1/2

136307AA

2, 2-1/2, 3

136308BA

V5055E

V5097E

3/4, 1, 1-1/4, 1-1/2

136307BA

2, 2-1/2, 3