Termaline® Load Resistor
15
Replacing the Time Delay Relay
Note:
Procurement and use of the accessory protective control system (comprising the water flow
switch and control box) is optional. The instructions and replaceable parts described in this section are
only applicable when the optional equipment is installed.
Note:
The relay cartridge, P/N 5-1664 or 5-1665, in the control box cannot be disassembled or
repaired in the field. A faulty unit should simply be replaced using the following Procedure:
1.
Ensure the following is shut off:
RF power
AC line power
Transmitter interlock supply
2.
Open the door of the control box by turning the slotted screw-head one-quarter turn.
3.
Loosen the 8-32 pan head screw at the top of the relay clamp, P/N 8630-193.
4.
Press its legs in slightly to release the retaining prongs of clamp.
5.
Pull the delay relay cartridge straight out of the socket.
6.
Replace the relay by reversing the procedure above.
Note:
The socket is an ordinary octal type. When inserting the relay, rotate the cartridge carefully to
align the center post nub in the socket.
7.
Fit the clamp into the slots and turn the head of the screw clockwise until snug.
Note:
The prongs of the clamp should match the side slots in the socket holder.
8.
Close the control box door.
9.
Reconnect interlocks and the AC power line by reversing the steps in this procedure.
10. Perform the pre-operational checkout. See
"Preoperational Checkout" on page 5
Replacing the Control Box Lamp
Note:
Procurement and use of the accessory protective control system (comprising the water flow
switch and control box) is optional. The instructions and replaceable parts described in this section are
only applicable when the optional equipment is installed.
1.
Locate the lamp (P/N 5-97G (-1 or -2)) on the top of the control box.
2.
Push down, gently, and twist the lamp lens (P/N 8750-106).
3.
Remove the lamp lens.
4.
Remove the lamp.
5.
Install the new lamp by reversing this procedure.
