Nortec 132-3091 manual How To Install The Replacement Cylinder, Extended Shutdown

6.Remove snap-fit red cap from coil assembly and slide coil off the actuator.

7.Loosen actuator with wrench and unscrew from plastic valve body.

8.Clean the exposed core and spring and plastic drain valve port.

9.Important: Tapered end of spring must be installed toward the solenoid. Reassemble, tighten actuator 1/4-turn past hand-tight.

10.Clean out the end of the hose, then reconnect it to the drain valve body with the clamp.

11.Fit mounting screws through drain valve body, one through ring terminal on green ground wire.

12.WARNING: To prevent the possibility of electrical shock the green ground wire must be reinstalled before power is restored.

13.Push the two slip-on terminals back onto the two tabs on the coil. The terminals, although not identical, are reversible.

HOW TO INSTALL THE REPLACEMENT

CYLINDER

1.Reverse procedure should be followed to install new cylinder. Main disconnect is to be left open until cylinder is completely installed and reconnected.

2.Ensure that cylinder is secured properly by the re-usable tie wrap and mounting brackets within the unit.

3.The cylinder plug wires are color-coded in accordance with colored dots beside the electrode pins on top of the cylinder.

4.This color-coding must be adhered to when replacing cylinder plugs on pins.

5.With cylinders having six primary voltage cylinder plugs, it should be noted that there are two of each color.

6.Care must be taken so that cylinder leads of the same color are always directly opposite each other as indicated by the dot formation on the top of the cylinder.

7.The white cylinder plug on all units is for the sensor electrode which always goes on the single pin surrounded by a plastic shoulder.

8.Ensure that cylinder plugs fit snugly on the pins.

9.If cylinder plugs become loose, it is best to obtain a new replacement plug. Consult factory.

Figure #16

Cylinder Plug Installation

Cylinder Plug Installation Instruction

For Part # 135-4012 (R, Y, or B)

0.50"

10 GA Wire

Cylinder Plug

Hex (Allen)

5/64" (2 mm)

EXTENDED SHUTDOWN

Before disconnecting power to the humidifier for a period of extended shutdown, ALWAYS DRAIN the cylinder first. Otherwise, the electrodes are subject to harmful corrosion which drastically shortens cylinder life. Do NOT leave the switch in the DRAIN position indefinitely as the drain coil could burn out. Leave the switch in the OFF position and “open” the main external fused disconnect to stop power to the humidifier. Close the shut off valve in the water supply line feeding the humidifier. Lock the cabinet door(s) to prevent unauthorized tampering. All doors are factory supplied with keyed locks. DO NOT LEAVE KEY IN LOCK. ACCESS SHOULD BE LIMITED TO AUTHORIZED PERSONNEL ONLY.

As long as the NHMC is powered, it will automatically drain the cylinder when there has not been a call for humidity for an extended period of time. The cylinder will remain empty until there is a call for humidity at which time the fill valve will open and refill the cylinder. The unit will go through its normal stabilization process for optimum operation.

Figure #17

Where To Oil

Oil Here

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