How To Clean Little Giant Hvac Pump'

OWNER'South Manual

VCMA Condensate Pump Series

This pump automatically removes condensate water that drips from an air conditioner evaporator scroll, refrigeration equipment coil, condensing furnace, or condensing boiler. The pump is controlled by a float switch mechanism, which automatically starts and stops the pump.
Some models also include a high-water level switch, which opens a thermostat excursion when the pump reservoir is total, stopping the production of condensate. Alternatively, this switch can exist reconfigured to shut a circuit, which tin operate an external alarm or relay, (purchased separately).
This product is covered past a Express Warranty for a period of 12 months from the date of original purchase by the consumer. For complete warranty information, refer to www.LittleGiant.com.

Specifications

Model	Volts	HZ	Amps	Watts	Shut Off
VCMA-15	115	threescore	one.0	lx	15' (iv.6 thousand)
VCMA-20	115	60	1.5	93	20' (6.one yard)
VCMA-twenty	230	50/lx	0.5	75	17' (5.2 m)

Safe INSTRUCTIONS

Before Getting Started

This equipment should be installed and serviced by technically qualified personnel who are familiar with the right selection and use of appropriate tools, equipment, and procedures. Failure to comply with national and local electrical and plumbing codes and within Footling Behemothic recommendations may result in electrical shock or fire hazard, unsatisfactory performance, or equipment failure.
Know the product's application, limitations, and potential hazards. Read and follow instructions advisedly to avert injury and property damage. Exercise not disassemble or repair the unit unless described in this manual.
Failure to follow installation or operation procedures and all applicable codes may result in the following hazards:

DANGER

Risk of death, personal injury, or property damage due to explosion, burn, or electric stupor.

Do not use to pump flammable or explosive fluids such as gasoline, fuel oil, kerosene, etc.
Practice not use in explosive atmospheres or hazardous locations equally classified past the NEC, ANSI/NFPA70.
Do not handle a pump or pump motor with moisture hands or when continuing on a wet or clammy surface, or in h2o.
When a pump is in its application, practise non touch on the motor, pipes, or water until the unit is unplugged or electrically disconnected.
If the ability disconnect is out of sight, lock it in the open position and tag it to foreclose the unexpected application of ability.

Alert

Risk of severe injury or expiry past electrical shock.

To reduce the take a chance of electrical daze, disconnect power before working on or around the system.
Wire pump system for correct voltage.
Be certain that this pump is connected to a circuit equipped with a footing fault circuit interrupter (GFCI) device if required past
Bank check electric outlets with a excursion analyzer to ensure power, neutral, and basis wires are properly connected.
Some pumps are supplied with a grounding conductor and grounding-type attachment plug. To reduce the take a chance of electric stupor, be sure that it is connected merely to a properly grounded grounding-blazon receptacle. Do not remove the tertiary prong from the plug. The tertiary prong is to ground the pump to assistance prevent possible electric daze hazards.
Some pumps are supplied with lead wires and are intended to exist hardwired using a junction box or other approved enclosure. The pumps include a grounding connector. To reduce the hazard of electric shock, be certain that it is properly connected to the ground.
In a 230 V direct wire installation, one side of the line going to the pump is always electrically energized, regardless of whether the liquid level control switch is open or closed. To avert hazards when installing or servicing, install a double-pole disconnect well-nigh the pump installation.
The flexible jacketed cord associates mounted to the pump must not exist modified in any way, with the exception of shortening the cord to fit into a control panel. Whatsoever splice between the pump and the control panel must be made within a junction box and comply with the National Electrical Code.
Check local electrical and building codes before installation. The installation must exist in accordance with their regulations as well equally the most recent National Electrical Code (NEC) and the Occupational Condom and Wellness Act (OSHA).
Do not use the power cord for lifting the pump.
Do not use an extension cord.
The pump should only be used with liquids compatible with pump component materials. If the pump is used with liquids incompatible with the pump components, the liquid can cause failure to the electrical insulation system resulting in electrical shock.

CAUTION

Risk of bodily injury, electric stupor, or equipment harm.

This equipment must not be used by children or persons with reduced concrete, sensory or mental abilities, or lacking in experience and expertise, unless supervised or instructed. Children may not utilize the equipment, nor may they play with the unit or in the immediate vicinity.
Equipment can start automatically. Lockout-Tagout before servicing equipment.
An inoperative or malfunctioning pump could lead to flooding, resulting in personal injury or property damage.
The performance of this equipment requires detailed installation and functioning instructions provided in this manual. Read the entire manual before starting installation and operation. Finish-User should receive and retain the manual for hereafter utilize.

NOTICE

Risk of harm to the pump or other equipment.

Earlier installing the pump, allow the air conditioner to cycle several times, collecting condensate in a carve up container to help affluent any residual oils that may remain in the organization. Failure to flush the arrangement can upshot in damage to the pump and drain line plumbing components.
When operating in a gas furnace environs, care must exist taken to ensure acerbity of condensate does not autumn below the average pH of 3.4 (to prevent a localized pocket of acid that acts like a battery causing pitting) past routinely cleaning or flushing tank with freshwater.
Support pump and piping when assembling and when installed. Failure to exercise and so may cause piping to pause, pump to fail, motor begetting failures, etc.
Practice not install the pump in a fashion that will field of study it to splashing or spraying.
Periodically inspect pump and system components. Regularly check hoses for weakness or clothing, making certain that all connections are secure.
Schedule and perform routine maintenance as required and in accord with the Maintenance section of this transmission.
The pump is for indoor use merely.
Exercise non utilize this pump inside an air plenum.

INSTALLATION

Physical Installation

Install the pump on a flat, level surface with the inlet below the curlicue bleed, making sure not to block the air vents effectually the motor housing.
• The mounting surface must support the weight of the pump and the water-filled tank.
The pump can also be mounted on a wall using the mounting slots at each cease of the tank.
Carefully remove the cardboard insert used to preclude switch movement during aircraft.
Of import: Failure to remove the cardboard insert will crusade the pump to overflow.

Piping Connections

Cut cease of the pipage(s) from evaporator or furnace drain at a 45° angle to forestall piping(s) from sealing airtight against the tank's floor.
The pump will accept upwardly to three drain lines. Make sure that total inflow does not exceed the rated output of the pump to prevent overflow. Route drain pipe(s) downwardly into 1 or more pump inlet openings ane to 3 inches, ensuring no interference with float performance. Keep any unused openings airtight using the supplied cap plugs.
Install outlet tubing or pipe onto outlet check valve and secure with hose clench (not provided).
• Use three/eight" within bore maximum tubing or piping to preclude excessive flow dorsum to the unit.
Route outlet tubing directly up, not exceeding 75% of the total dynamic head chapters of the pump.
At the superlative, the slope belch lines down slightly to a point higher up the bleed area. Then, turn down and route to a suitable drain at a indicate below or approximately level with the bottom of the pump, if possible. This will produce a siphoning consequence which volition improve the efficiency of the pump.
If information technology is not possible to slope the discharge line down, make an inverted "U" trap directly above the pump at the highest point.

Electric Connections
Connect the power cord to a constant source of power matching the pump nameplate voltage.

The pump should be connected or wired to its own excursion, with no other electric receptacles or equipment in the circuit. Do not connect to a fan or whatever device that runs intermittently.
The fuses or circuit breaker should be of ample capacity.
Connect to a circuit equipped with a footing mistake circuit interrupter (GFCI) if required by code.
Some models are supplied with a stripped wire cord end. Ability connections must be made within a junction box and must comply with the National Electrical Lawmaking. Wires are color-coded as follows:
Green/yellow = Ground; Brown = Line; Blueish = Line (230 V) or Neutral (115 V)
Important: If the power cord is damaged, the whole unit of measurement must be replaced.

Loftier Water Level Switch Connectedness

CAUTION

Risk of actual injury or holding damage.

In applications where property impairment and/or personal injury might issue from an inoperative or leaking pump due to power outages, belch line blockage, or any other reason, a backup organisation(s) (due east.g. auxiliary switch) and/or alarm should be used and monitored.
The loftier-level switch should be connected to a Class 2 Low Voltage excursion. The two switch wires are blackness. Exercise non confuse these wires with the line voltage power conductors.
The high-level switch is placed in an orientation that reverses the normal function of normally open and normally closed terminals. Pay close attention to the following instructions.

High Water Level Switch
NC terminal. Connect here to activate an external alarm or relay.
NO concluding. Connect here to shut off the condensing unit of the heating/cooling system.
Motor Cover and Screw
Thermostat
Air Conditioner/Furnace
High Water Level Switch wiring leads

In that location are 2 options for connecting the loftier-level switch:

The switch is factory wired to the NO and COM terminals. This will open up (break) a low voltage electrical circuit when the switch is activated by a high water level in the reservoir. This tin can exist used to stop the condensing unit of measurement(south) of the heating/cooling organisation.
•Refer to the thermostat and heating/cooling unit's Operating Manual for expected switch operation and wiring connections. Connect the switch leads (7) in series with the thermostat circuit every bit specified in the manual.
The switch can be reconfigured to the NC concluding to close a low voltage circuit in the event of a high water level, activating an external alarm or relay (purchased separately). Use the post-obit procedure if an NC configuration is required:
•Remove the pump's motor cover (iv).
•Support the switch and carefully change the lead from the NO final to the NC concluding (three).
•Re-install the motor cover.
•Connect the switch leads in series with the low voltage external component equally specified in the component'southward transmission.

Place the included "Attention Service Technician" label in a visible location.

MAINTENANCE

Operation Testing

Disconnect the pump from the power source.
Remove tank encompass associates.
• The cover snaps onto the reservoir.
• Pull out on the slot on the long side of the top.
Identify a finger in 1 of the larger corner holes and carefully lift off the comprehend. Concur level.
Turn on power to the pump.
Exam pump operating switch by raising the pump switch float.
• The motor should turn on before the bladder contacts the tank cover.
Test high-level switch past raising the high-level switch float.
• The switch should activate before the float contacts the tank cover.
• If wired to NO terminal, the air treatment device should shut downward.
• If wired to NC final, external component (alarm or relay) should activate.
Disconnect the pump from the power source.
Replace the tank cover assembly.
Plough on ability to the pump.

Caution

Chance of bodily injury or holding damage.

Exercise not allow the tank to overflow during this maintenance.
inspect and exam the condensate removal system condition and operation every 6 months (more often in heavy-employ applications).

To inspect and clean the tank and other components, follow these steps:

Disconnect the pump from the ability source.
Remove tank cover associates from the tank.
• The cover snaps onto the reservoir.
• Pull out on the slot on the long side of the peak. Place a finger in one of the larger corner holes and carefully lift off the cover. Hold level.
Be sure the floats move freely. Make clean every bit necessary.
Remove the cheque valve and backwash the discharge port into the volute over a sink.
Clean the tank with warm water and mild soap.
Flush tank with fresh h2o to ensure that residual condensate does not create localized pockets of acrid that could cause pitting.
Check inlet and outlet piping. Clean as necessary. Be sure there are no kinks that would inhibit catamenia.
Inspect the check valve and clean with warm water and mild soap if necessary.
Replace the tank embrace assembly.
Examination operation of the system.

Troubleshooting

Problem	Likely Causes	Cosmetic Activity
The pump does non start when the tank is full of condensate h2o.	The pump is non continued to electrical power.	Connect the pump to a dedicated GFCI circuit.
	Circuit breaker off or fuse removed.	Turn on the circuit breaker or replace the fuse.
	Accumulation of debris or build-up on the float.	Clean bladder; a dirty float could be besides heavy to operate correctly.
	Float movement obstacle.	Remove the tank. Cheque bladder move path. Remove any debris or obstruction.
	Defective switch.	Replace pump.
	Defective motor.	Supervene upon pump.
Condensate is overflowing from the tank.	The pump is not connected to electrical power.	Connect the pump to a dedicated GFCI circuit.
	Liquid inflow matches or exceeds pump output capacity.	A larger pump is required. The high-level switch should shut off the A/C unit of measurement or signal an alarm in this condition if connected to the circuit correctly. Check to ensure that the pump loftier-level switch is connected to the A/C unit (or alarm excursion), and that the leads are connected to the correct switch terminals for the application. Refer to "Loftier Water Level Switch Connection" on page iv.
	The pump is not level.	Check to ensure that the pump is level. If the pump is not level, information technology may non activate, causing water to overflow from the tank. Place the unit on a flat and level surface.
	Accumulation of debris or build-up on the float.	Make clean float. A muddied float could be besides heavy to operate correctly.
	Check valve stuck or plugged	Remove check valve and inspect for proper operation.
	The outlet period is blocked.	Bank check outlet tubing to ensure that information technology is non kinked or blocked. Gear blocked tubing of slime and debris. Clean inlet and outlet piping.
	The pump impeller is not turning.	Articulate any blockage in the impeller housing.
	Defective switch.	Replace pump.
	Defective motor.	Replace pump.
The pump volition non close off.	Float motility obstruction_.	Remove the tank. Cheque float movement path. Remove any debris or _obstruction.
	Liquid inflow matches or exceeds pump output capacity.	A larger pump is required. The loftier-level switch should shut off the A/C unit or signal an alarm in this condition if connected to the circuit correctly. Check to ensure that the pump high-level switch is connected to the A/C unit (or alarm circuit) and that the leads are connected to the correct switch terminals for the application. Refer to "High Water I Pvol Switch Connection" on page iv
	Lacking switch.	Replace pump.
The pump runs but does not discharge liquid.	Check valve stuck or plugged.	Remove check valve and inspect for proper functioning.
	Elevator also loftier for the pump.	Check rated pump operation.
	Inlet to impeller plugged.	Pull pump and clean.
	The outlet menstruation is obstructed.	Check outlet tubing to ensure that it is not kinked or blocked. Gear blocked tubing of slime and debris. Clean inlet and outlet pipe.
The pump does not deliver rated chapters.	Cheque valve stuck or plugged.	Remove bank check valve and inspect for proper operation.
	Lift too loftier for the pump.	Check rated pump performance.
	Low voltage, speed too slow.	Bank check that supply voltage matches the nameplate rating.
	The impeller or discharge pipe is chock-full.	Pull pump and clean. Check pipe for scale or corrosion.
Pump cycles go along- ally.	Bank check valve leaking.	Remove check valve and inspect for proper operation.