SD SD599122 Manual

IMPORTANT: Unplug your appliance and turn off power at the breaker before servicing. If you have doubts
or are unfamiliar with this type of installation work, seek the services of a qualified Service Technician.
Supplying Demand assumes no responsibility for the improper installation of this product.
INTRODUCTION
This Auxiliary Condensate Switch is designed to be installed in the condensate drip pan of an air conditioning or refrigeration unit. The ACS
when properly installed will turn off the air conditioning or refrigeration unit if the condensate level in the condensate drain pan approaches
overflow. The ACS is an SPDT switch in an ABS housing and is supplied with 18 AWG leads, a mounting screw, a sealing washer, and a nut. The
ACS may be wired in a "normally open" or "normally closed" position.
The switches are carefully packaged, inspected, and tested to ensure safe operation and delivery. When you receive your switch, examine it
carefully to determine that there are no parts missing or damaged during shipping.
Read all instructions carefully and thoroughly before attempting to install, operate, or service this Auxiliary Condensate Switch. Know the
switch applications, limitations, and potential hazards. Protect yourself and others by observing all safety information. Failure to comply with
instructions could result in personal injury and/or property damage. Retain instructions for future reference.
SAFETY GUIDELINES
1. Do not use with flammable or explosive fluids such as gasoline, fuel oil, kerosene, etc. Do not use in explosive atmospheres. Switch should
only be used with water. (Note: This is not a submersible switch)
2. Do not handle switch with wet hands or when standing on a wet or damp surface, or in water.
3. Disconnect all electrical service to the switch before working on or handling the unit.
4. Do not connect to voltage and/or amperage above that indicated on nameplate.
5. Do not operate unless completely assembled.
6. In any installation where property damage and/or personal injury might result from an inoperative switch due to power outages, or any
other reason, a backup system and/or alarm should be used.
INSTALLATION
STEP 1: Refer to the air conditioning or refrigeration unit's Operating Manual during installation of the ACS switch.
STEP 2: Disconnect power to the air conditioning or refrigeration unit - both the main power and the low voltage thermostat circuit.
STEP 3: All the switches are factory wired "normally closed". This configuration will open (break) an electrical circuit when the switch is
activated by a high water level.
STEP 4: If the "normally open" configuration is required, remove the switch cover by sliding it up and off of the switch housing. Carefully
remove the switch and change the lower lead wire from terminal marked "NC" to terminal marked "NO". Carefully replace the switch and
reinstall the switch cover. Test the operation of the switch to confirm "normally open" operation.
STEP 5: Plug the drain hole of the condensate drain pan. Temporarily position the ACS in the desired location without the screw, nut, or sealing
washer so that the switch housing and switch cover are against the drain pan wall (refer to Fig. 2). Start filling the drain pan with water until
the float lifts up and activates the switch. Make sure that the water level does not approach or overflow the drain pan. There will need to be a
sufficient gap (usually 3/4") between the highest water level required to activate the switch and the top of the drain pan (see Fig. 4). Confirm
the float can travel its full range with no obstructions.
STEP 6: Before removing the pre-assembled ACS, mark a position for the mounting hardware. Unplug the drain hole of the condensate drain
pan and allow the water to drain out completely. Drill a 9/32" diameter hole for the mounting hardware to pass through the drain pan.
AUXILIARY CONDENSATE SWITCH
SD599122