Johnson Controls GH-5000 Manual page 14

130 4280 010 E
DN100-150 Flanged Body Models
•
Close the upstream shutoff cock and disconnect power to the actuator.
CAUTION: Personal injury hazard. The valve cover contains a compressed spring. Improper
disassembly could cause the valve cover and spring to fly off resulting in personal injury or equipment
damage.
•
Unscrew the sealed locking screw from the bottom valve cover and replace it with a centering disk
(disk to DIN 9021- 8,4 or JCI part number 130 2069 010) and screw M 6, see Table 4 and Figure 4.
•
Tighten the screw three turns past the stop so that the valve seat plug lifts off the valve seat, securing
the valve spring.
•
Remove the valve cover mounting screws.
•
Remove the valve cover, valve spring, valve seat plug, and filter. Refer to Figure 4 for part identification.
•
Clean or replace valve seat plug and seal, filter, and gasket.
•
Check the surface of the valve seat plug. If the seat plug is damaged in anyway, replace it. Contact
Johnson Controls for replacement part numbers.
•
Ensure that the valve seat plug bore is free of foreign matter before installing it on the valve stem. Re-
insert valve seat plug, filter, and gasket.
•
Place the valve spring inside the valve body and secure it with the valve cover and two opposing
mounting screws. Ensure that the valve seat plug is not tilted.
•
Insert the other two mounting screws. Ensure that the valve body and cover are sealed. For torque refer
to Table 3.
•
Remove the screw and centering disk inserted and replace it with the locking screw. For torque refer to
Table 3. The locking screw has to be sealed.
•
Open the upstream shutoff cock and check for leakage along the valve cover. (Refer to the Checkout
Procedure section).
•
Observe at least three complete operating cycles to ensure that all components are functioning correctly.
Johnson Controls SA/NV - Leuvensesteenweg 248D - B-1800 Vilvoorde - +32(2) 709 40 00 - www.johnsoncontrols.be
Page:14
Valve Model
DN100 Flanschventil GH-54..
DN125 Flanschventil GH-54..
DN100-150 Flanschventile GH-57..
DN150 Flanschventil GH-54..
Table 4: Bolt dimensions
Bolt
M6 x 55
M6 x 60
M6 x 70