Simer 2520ULST Condensate Pumps Owner’s Manual

: June 9, 2024
: Simer

Table of Contents

Safety
Installation
Installation
MAINTENANCE
CLEANING THE CHECK VALVE
TROUBLESHOOTING
PREVENTIVE MAINTENANCE
Support
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Simer 2520ULST Condensate Pumps Owner’s Manual

Safety

READ ALL INSTRUCTIONS BEFORE STARTING INSTALLATION General Safety Information

Electrically powered condensate pumps normally give many years of trouble-free service when correctly installed, maintained, and used. However, unusual circumstances (interruption of power to the pump, algae/debris in the reservoir, electrical or mechanical failure in the pump, etc.), may prevent your pump from functioning normally. Consequently, any condensate pump installed in an area susceptible to water damage must be connected to a failure alarm or water sensing device or include an auxiliary safety shutoff switch activated by high water in the pump reservoir and connected to the thermostat of the furnace/AC unit. See the “Troubleshooting Chart” in this manual for information about common condensate pump problems. For more information, see your dealer or call customer service at 1-800-468-7867

Drain all water from system before servicing.
Periodically inspect reservoir, pump, and system components. Keep free of debris and foreign objects. Perform routine maintenance as required.
When installing an electrically driven pump, follow all electrical and safety codes that apply.
Make certain power source conforms to requirements of your equipment.
Protect electrical cord from sharp objects, hot surfaces, oil, and chemicals. Avoid kinking cord. Replace or repair damaged or worn cords immediately.
Personal Safety:

a. Wear safety glasses at all times when working with pumps.
b. Keep work area clean, uncluttered and properly lighted – replace all unused tools and equipment.
c. Keep visitors at a safe distance from work area.
d. Make workshop child-proof – with padlocks, master switches, and by removing starter keys.

Warning

Risk of electric shock. If your basement has water or moisture on floor, do not walk on wet area until all power has been turned off. If shut-off box is in basement, call electric company to shut-off service to house, or call your local fire department for instructions. Failure to follow this warning can result in fatal electrical shock.

When pump is plugged in, do not handle pump, cord, or plug with wet hands or when standing on a wet or damp surface or in water. Unplug pump before servicing it or doing any maintenance on it.

ATTACH ORIGINAL RECEIPT HERE FOR WARRANTY CONSIDERATION.

SIMER warrants to the original consumer purchaser (“Purchaser”) of its products that they are free from defects in material or workmanship. If within twelve (12) months from the date of the original consumer purchase any such product shall prove to be defective, it shall be repaired or replaced at SIMER’s option, subject to the terms and conditions set forth below. Your original receipt of purchase is required to determine warranty eligibility

Exceptions to the Twelve (12) Month Warranty

Product/Model No.	Warranty Period
M40P, M40, BW85P, CM10, CMK	90 days
2330, 2300, 2310, 2955, 2956, 2957, 2960, A5500, 2520ULST	2 Years
4″ Submersible Well Pumps, 3984, 3983, 2975PC, 2958, 2985, 3075SS	3 Years
Pre-Charge Water System Tank, 3986, 3985, 2956	5 Years
3988, 3995, 3997, 3963	Lifetime

General Terms and Conditions

Purchaser must pay all labor and shipping charges necessary to replace product covered by this warranty. This warranty shall not apply to acts of God, nor shall it apply to products which, in the sole judgement of SIMER, have been subject to negligence, abuse, accident, misapplication, tampering, alteration; nor due to improper installation, operation, maintenance or storage; nor to other than normal application, use or service, including but not limited to, operational failures caused by corrosion, rust or other foreign materials in the system, or operation at pressures in excess of recommended maximums.

Requests for service under this warranty shall be made by returning the defective product to the Retail outlet or to SIMER as soon as possible after the discovery of any alleged defect. SIMER will subsequently take corrective action as promptly as reasonably possible. No requests for service under this warranty will be accepted if received more than 30 days after the term of the warranty

This warranty sets forth SIMER’s sole obligation and purchaser’s exclusive remedy for defective products.

THE FOREGOING WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS WARRANTIES. IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL NOT EXTEND BEYOND THE DURATION OF THE APPLICABLE EXPRESS WARRANTIES PROVIDED HEREIN.

Some states do not allow the exclusion or limitation of incidental or consequential damages or limitations on how long an implied warranty lasts, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

Installation

Fire and explosion hazard. Do not use this pump to pump flammable or explosive liquids. Use pump only with liquids compatible with pump component materials. Do not use pump in explosive atmospheres.

Risk of flooding. If for any reason property damage or personal injury can result from an inoperative or leaking pump, an auxiliary switch backup system and/or an alarm should be installed with pump.

Mount pump on side of furnace (or on floor or wall).

Electrical shock and carbon monoxide hazards. When mounting the pump on the side of the furnace, make sure that the mounting holes clear the heat exchanger and all wiring. The mounting screw for the pump should touch only the pump reservoir flange and the exterior sheet metal on the furnace. If in doubt or if this is confusing, consult a qualified HVAC serviceman or the furnace manufacturer.

Run plastic tubing as shown into pump’s drain inlet hole(s).

**** Make sure that the tubing to the pump intake is fastened
securely so that it cannot come out of the pump intake
port. Check for local code requirements. You must comply with codes.

Run tubing as shown from hose barb on pump discharge to floor drain or laundry tub.

Check local codes for discharge water requirements. Run the discharge line to a point outside the house if possible. To do this easily, you may be able to run the condensate discharge line out through the wall along the AC freon line. Use the existing line if possible (when replacing an existing pump).
Clamping the plastic discharge line to the check valve with a 1/2″ hose clamp (purchase separately) will help to keep it in place, especially with older tubing (plastic tubing tends to harden as it gets older).
Common locations for the end of the discharge line are:
- A. Out a window or along the air conditioner freon line to the outdoors.
- B. To a floor drain (leave an air gap between the end of the tube and the drain).
- C. To a laundry tub or sink (leave an air gap above the tub drain).
Hazardous voltage. Plug pump into a 115-volt outlet. Pump is double insulated; grounding is not required

With the unit plugged in and the discharge line installed, fill the pump reservoir until the pump starts. Allow it to pump down and shut itself off automatically to verify proper operation through one complete cycle.

Safety Switch:
Most models include an automatic safety switch which should be wired to activate an alarm or to cut off power in the event of high water in the condensate reservoir. If you must run additional wire from the low voltage safety switch to the alarm or to the control wiring of your furnace/AC unit, use at least 18 gauge (AWG) copper wire rated at 105° C. Make connections with wire nuts as shown. If your installation allows interruption of heating or cooling, follow procedure 1, below. If your installation does not allow interruption of heating or cooling, follow procedure 2, “Safety Switch Sounds Alarm”

Risk of electrical shock. Disconnect power to furnace/AC unit and be sure condensate pump is unplugged before starting procedure.

Safety Switch Shuts Down Furnace/AC

A. Make sure the pump is unplugged.
B. Find the red wire in the bundle from the thermostat and disconnect it from the furnace/AC unit.
C. Connect the red wire to one of the white wires from the safety switch as shown in Figure 1.
D. Connect the other white wire from the switch to the furnace/AC terminal strip where the red wire from the thermostat was connected.
E. Plug in the pump.
F. The furnace/AC will now operate as long as the condensate pump empties the reservoir. If the reservoir overfills, the switch will open and cut off the power to the furnace/AC.

Figure 1: Low Voltage Auxiliary Safety Switch connection for Furnace/AC shutdown installation.

Risk of freezing/overheating. This installation will shut down the furnace/AC unit if the water level in the pump reservoir rises to within about 1/2″ from the top of the reservoir (thereby stopping the production of condensate and preventing flooding), but it will not allow the furnace/AC unit to restart until the condensate pump reservoir is emptied. It should be monitored so that in case of high water in the reservoir, corrective action can be taken before freezing/overheating occurs.
NOTICE: When installing the pump in a new home or after a renovation project, be sure that debris in the duct work does not get into the reservoir; it will clog the system.

Safety Switch Sounds Alarm

A. Make sure the pump is unplugged.
B. Remove the two screws holding the motor cover to the pump deck. Remove the cover.
C. Do not disturb the two yellow wires going through the deck and into the motor (they are potted into the top of the motor so there are no wire ends visible) .
D. Remove the white wire from the bottom terminal (NC or Normally Closed) on the end of the safety switch and reattach it to the upper terminal (NO or Normally Open) on the end of the switch.
E. Run the white switch wires out through the notch in the motor cover and replace the motor cover. Make sure all wires (power cord and safety switch) run through the notch. Hook the cover under the catch on the deck and secure it with two screws.
F. Connect the white wires from the safety switch to the alarm of your choice (purchase separately). Consult the alarm manufacturer’s instructions for correct connections to the alarm.
G. Plug in the pump

Installation

H. Risk of Flooding. With installation No. 2 (“Safety Switch Sounds Alarm”), the alarm is activated when the water level in the reservoir is within about 1/2″ of the top of the reservoir. However, the furnace/AC unit will continue to produce condensate because the alarm will not shut it down. Monitor the installation so that in case of high water level in the condensate reservoir you can take action before the reservoir overflows and flooding occurs.

Move white lead from NC terminal to NO terminal as shown
Connect both white leads to alarm with wire nuts as shown

Figure 2: Low Voltage Auxiliary Safety Switch connection for alarm circuit installation (does not shut down furnace/AC unit)

Testing Auxiliary Safety Switch

NOTICE: Some appliances may not start immediately due to a built-in delay circuit that prevents rapid cycling of the compressor.

Start appliance.
Unplug the condensate pump so that it cannot pump out.
Pour water into the pump reservoir until it is almost full.
As the water rises in the reservoir, the safety switch should shut down the appliance or set off the alarm (depending on the installation procedure used).
Plug in the condensate pump and allow it to empty the reservoir. As the water level goes down in the reservoir, the safety switch should reset, allowing the appliance to start or shutting off the alarm.

MAINTENANCE

Disconnect the power to the furnace/AC unit and unplug the pump.
Disconnect the tubing to the pump. Drain the tubing into a container.
Remove the two mounting screws and remove the pump from the furnace or wall. Dump the reservoir into a floor drain or container.
After you have dumped the pump, remove the four screws securing the reservoir to the pump deck. Lift the deck/pump assembly off of the reservoir.
Turn the deck/pump assembly upside down and remove the five screws holding the impeller cover to the motor.
Remove the impeller cover. The rotor/ impeller assembly may come out with it. If not, pull it out of the rotor chamber in the motor. (You may have to pull it hard to get it out against the magnetism in the motor windings.)
Clean the impeller, rotor, rotor cavity, and O-Ring. Use a rag to clean the O-Ring groove in the impeller cover and the sealing surface on the bottom of the motor block.
Clean out the reservoir.
eassemble the impeller and the impeller cover; tighten the screws carefully. Do not overtighten!
Turn everything right side up and reassemble the reservoir to the deck. Be sure the impeller cover fits into the molded ring in the bottom of the reservoir. Fasten the reservoir with the four screws at the corners.
Reinstall the pump on the furnace.
Plug in the pump, fill the reservoir, and run the pump through one complete pump-down cycle to be sure it works correctly.
The pump is ready for operation.

CLEANING THE CHECK VALVE

Unplug the condensate pump.
Remove the discharge line from the check valve.
Use a 9/16″ wrench to remove the check valve from the pump deck.
Inspect the valve for obstructions or damage. Clean or replace it as needed.
Thread the valve back into the pump discharge by hand, plus 1/2 turn with the wrench.
NOTICE: Don’t overtighten the valve, as overtightening can distort the O-Ring that seals the valve, causing leaks.
Plug in the pump, fill the reservoir, and run the pump through one complete pump-down cycle to be sure it works correctly.
The pump is ready for operation.

TROUBLESHOOTING

Pump does not run

Check power to furnace/AC and to pump circuit. Be sure pump is plugged in.
Condensate level in reservoir may not be high enough to start pump. (Water must be 2″ below the top of the reservoir for pump to start.)
Dirt or algae clogging reservoir.
Inlet line clogged.
tuck float resulting from dirty reservoir.
Make sure that float switch is not stuck in the down (off) position.

Pump runs, no discharge

Make sure the discharge tubing (especially the end of the tubing) is not plugged.
UNPLUG pump and make sure check valve and impeller discharge port are not plugged.
Make sure the float switch is not stuck in the on (up) position

PREVENTIVE MAINTENANCE

Unplug the pump and clean out the reservoir at the beginning and end of each heating season. Use a commercial algaecide and follow manufacturer’s instructions. Putting about a gallon of algaecide solution in the reservoir and then cycling the pump several times will keep the reservoir and the discharge line free of algae build-up. Be sure to dump the cleaner and rinse the reservoir with water before starting the pump. Be sure you do not clog the impeller discharge port or the check valve when starting the pump after cleaning. Whenever you replace the motor cover and screws, be sure that the motor cover catches the float switch pivot pin and does not pinch either the power cord or the safety switch leads. Do not over-tighten the screws.

SERVICING A DOUBLE-INSULATED APPLIANCE

A double insulated product uses two layers of insulation (one inside the other) to provide protection from electrical shock hazards. No separate grounding wire is required. DO NOT try to install a grounding wire on a double insulated device. Only qualified service personnel should attempt to service a double insulated product, because safe servicing requires extreme care and knowledge of the system. Any replacement parts installed in a double-insulated product must be identical to the original parts that they replaced. A double insulated product is marked with the words “DOUBLE INSULATION” or “DOUBLE INSULATED