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SYSTEM CHECKOUT AFTER INSTALLATION
Before putting the system into service, all components must be checked for proper operation. During this checkout, assume that the carbon dioxide pilot cartridge is not installed in the Model EN-MCU3 actuator. Remove the pull pin from the hole in the slide plate.
To check satisfactory operation of the control mechanism, cut the terminal link or the "S" hook holding the link. This will relieve all tension on the fusible link line and operates the control mechanism. The slide plate will have moved fully to the right. The gas valve cable have been released, causing the gas valve to close. Any auxiliary equipment connected to the dry contacts of the solenoid monitor and/or the Miniature Switch in the Model EN-MCU3 will have operated.
If any of these events fail to occur, the problem must be investigated and repaired.
Repair the terminal link and put the fusible link line back into the set position. This is accomplished by using a 1/2" hex wrench on the fusible link line ratchet wheel. The ratchet wheel will be ratcheted in a clockwise direction until the spring plate is parallel to the top of the enclosure.
Once the fusible link line is set, the control mechanism can be placed in the set position. To set the control mechanism, the slide plate is moved from right to left, ensuring the bolt extending from the cam arm is in the slot provided in the slide plate. Continue moving the slide plate to the left until the latching arm is in the locked position. Once the control mechanism operates pull the pull handle on the remote pull station to assure that the control head operates. If the control mechanism operates normally, the control mechanism can be reset as described above. Insert the pull pin into the hole in the slide plate above the latching arm. Replace the pull station handle, pull pin, and nylon tie.
Assure that the gas valve is fully open by ratcheting the gas valve ratchet wheel. Do not over tighten.
CAUTION: Before screwing the carbon dioxide pilot cartridge into the actuator, ensure that the actuator has a Teflon O-ring.
Using a felt-tipped marker, write the date of installation on the carbon dioxide pilot cartridge. Screw the cartridge into the Model EN-MCU3 actuator until hand-tight. Never use a wrench to tighten the cartridge into the actuator.
Remove the pull pin from the hole in the slide plate. Secure the Model EN-MCU3 or EN-S cover with the screws provided.
