aspen pumps operation manual

8/7/2019 Aspen Pumps Operation Manual

1/4

PRINCIPLES OF OPERATION

FOR ASPEN MINIPUMPS

Imported and Distributed by 3 Kellogg Court, Unit10, Edison, NJ 08817 www.eztrap.com

phone 732-248-8066 fax 732-248-8068 email: [email protected]

Both types are supplied with2 incoming cables:1. A power supply cable, which alwayshas 3 conductors, color coded for differentvoltages in accordance with the NEC.Conductors for 115 volt pumps are white,black and green, and conductors for230 volt pumps are red, black and green,and these colors are standard for allmodels which operate on line voltage.2. An overflow alarm cable, which isdesigned to break the communication

wire between the condenser and theevaporator in case the water level in thereservoir rises to an unacceptable level.This cable also has 3 conductors, gray(common), purple (normally closed) andorange (normally open), and this colorcoding is identical for all pump models.CONNECTION OF THE OVERFLOWSWITCH IS MANDATORY. FAILURETO DO SO WILL INVALIDATEMANUFACTURERS WARRANTYAND ALMOST CERTAINLY LEAD TOFLOODING AND WATER DAMAGE.NOTE: The overflow switch contacts are a

separate volt-free circuit which operatesentirely independently from the powercircuit that automatically switches thepump on and off as the water level risesor subsides.NOTE ALSO that the overflow switchis electronic and draws its powerdirectly from the PCB in the pump,so the switch itself cannot operate

unless the pump is powered.NOTE: The overflow switch is designedfor a maximum load of 5 amps upto 230 volts, which is normally morethan enough for most Minisplits asthe current and the voltage carried inthe communication wire are usuallywell below this.Standard wiring diagrams for mostMinisplit manufacturers are availableat WWW.EZTRAP.COM orWWW.ASPENPUMPSUSA.COM for

download, or can be emailed or faxedon request.If the 5 amp limit is exceeded, it will benecessary to use a single pole switchingrelay to handle this current to prevent theelectronics in the pump from burning out.Specific wiring diagrams for this type ofinstallation are available from EZ-TRAPon request.Some Minisplits have communicationswires which are sensitive because theyutilize proprietary operating protocols,and these may have to be wired in adifferent way. In these cases the overflowswitch must be wired only according to awiring diagram dedicated to that partic-ular manufacturer and/or model series.Specific wiring diagrams for this typeof installation are also available fromEZ-TRAP on request.

Some Minisplits include a dedicated set ofcontacts on the PCB in the evaporator into

which the overflow wires can be connectedas per the specific wiring diagramsprovided by that manufacturer, and if anoverflow does occur, the unit willautomatically turn off and an alarm LEDwill flash on the control panel of the unit.If this is not the case and an externalaudio or visual alarm is required, this caneasily be done by connecting the orangewire which is energized only when thewater level in the reservoir becomesabnormally high.

In order to connect an external alarm, itis necessary for the communication wireto carry a stable AC voltage anywherebetween 12 and 230 volts.If an external alarm is required, the orangewire would be connected to one terminalof the alarm device which must use thesame voltage as the communications wire,which will have to be determined priorto installation. If no external alarm isrequired, the orange wire is not used andthe end is taped off to isolate it.If the alarm device is powered by 12 to115 volts, it will be necessary to connect

the other terminal of the alarm deviceto a neutral to complete the circuit.If the alarm device is powered by 230volts, it will be necessary to determinethe polarity of the communication wire(line 1 or line 2) and then to connect theother terminal of the alarm device to theother line (1 or 2) to complete the circuit.

SEE PAGE 3 FOR DETAILED DIAGRAMS OF SEQUENCE OF OPERATION and PAGE 4 FOR PUMP SELECTION SPECIFICATIONS

Minipumps are not designed to rundry as they are both cooled andlubricated by the water flowingthrough them. They therefore requirea float switch to detect the presence

of water in the drain pan andactivate the pump only when wateris present.For this reason, a Minipumpalways consists of 2 elements:1. The pump body, whichincludes an electronic PCB andthe pump motor.2. The reservoir, which containsthe filter and the switching mechanismto activate the pump.This must alwaysbe kept level and clean to facilitateoperation of the float switch andthe filter must be cleaned regularly.

When these are supplied as 2 separateitems as in the Orange or Aqua series,they are known as a SPLIT TYPE PUMPand the 2 elements are connectedtogether with a length of 1/4 vinyl tube

and a communication cable, both ofwhich are usually around 6 feet long, butmay be extended if required.

When these 2 elementsare combined togetherin 1 unit as in the Limeseries, they are known asa MONOBLOC PUMP in which the

pump and reservoir share a commonbody and no connecting tubesor wires areneeded.Mini & Maxi Orange

Pump Body

Reservoir

Reservoir

ReservoirPump Body

Pump Body

Mini Aqua

Mini & MaxiLime


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ASPEN PUMPS IMPORTED AND DISTRIBUTED BY EZTRAP EDISON,NJ 08817 PHONE 732-248-8066 [email protected] WWW.EZTRAP.COM

CEFFECT OF DIRTY FILTER

CONDENSATE INLET

DRAIN PAN

WIRE TO PUMP

WHEN CONDENSATE STARTS FLOWING IT CANNOT PENETRATE

FILTER TO ACTIVATE PUMP OR OVERFLOW ALARM, AND

WATER WILL BACK UP UNTIL IT OVERFLOWS DRAIN PAN.

FILTER

BREATHERTUBE

PUMP INTAKE TUBE

WIRENUT

GREY

N.O.

N.C.PURPLE

ORANGE

COMMUNICATIONTERMINAL INEVAPORATOR

COMMUNICATION WIREFROM CONDENSER

LIGHT OR BUZZER24V, 115V OR 230VACCORDING TO VOLTAGEIN COMMUNICATION WIRE

FOR 24V OR 115V THIS MUST BE

WIRED TO A NEUTRALFOR 230V IT MUST BE WIRED TOOTHER LEG OF INCOMING POWER

ADIAGRAM TO HOOK UP AN EXTERNAL ALARM

MAX 5 AMPS

DWHY BREATHER TUBE IS REQUIRED

CONDENSATE INLET

DRAIN PAN

WIRE TO PUMP

FILTER

BREATHERTUBE

AIR INTAKEPREVENTS

VACUUM

PUMP INTAKE TUBE

MIN 1

WHEN PUMP STARTS AND BEGINS SUCKING WATER OUT OF RESERVOIR, AN AIRLOCK WILL BE CREATEDUNLESS AN AIR INTAKE OPENING IS PROVIDED ON TOP OF RESERVOIR. BECAUSE CONDENSATE FLOWFROM DRAIN PAN INTO RESERVOIR RELIES ON GRAVITY, RESERVOIR MUST ALWAYS BE BELOW DRAINPAN AND IT IS POSSIBLE THAT A BLOCKAGE MAY CAUSE THE WATER LEVEL INTHE CONDENSATE DRAIN INLET HOSE BETWEEN PAN AND RESERVOIR TO BACK UPUNTIL IT GETS HIGHER THAN THE TOP OF THE RESERVOIR. IF THIS HAPPENS,THE WATER WILL BLEED OUT OF THE AIR INTAKE OPENING AND TO PREVENTTHIS FROM OCCURRING, A 6 x1/4 BREATHER TUBE IS FITTED ONTO THEAIR INTAKE OPENING TO EXTEND IT SO THE TOP IS A MINIMUMOF 1ABOVE THE TOP OF THE DRAIN PAN.

B CORRECT POWER WIRING FOR PUMPIF DISCONNECT IS REQUIRED BY LOCAL CODE

PUMP115V

115 VOLTS

EVAPORATOR115V

GREEN

DISCONNECT

DO NOT WIRE PUMPFROM INCOMING SIDEOF DISCONNECT

BLACK

WHITE

G

L

N

NEUTRAL

LIVE

GROUND

PUMP230V

230 VOLTS

EVAPORATOR230V

GREEN

DISCONNECT

DO NOT WIRE PUMPFROM INCOMING SIDEOF DISCONNECT

BLACK

RED

G

L1

L2

LINE2

LINE1

GROUND

All pump models incorporate a filter in thereservoir which must be cleaned regularly.A detailed explanation of this will befound in diagram C below.

All pump models require a mandatorybreather tube to prevent an airlock in thereservoir while the pump is operating.A detailed explanation of this will befound in diagram D below.

ASPEN Mini models are available in24V, 115V and 230V AC.ASPEN Maxi models are available in115V & 230V AC only.

If the current in the communication wireis low voltage electronic or DC, it willgenerally be difficult or impossible toisolate the other leg required to operatean alarm, and in this case, the orangewire is simply taped up and not used.Connection details for an externalalarm will be found in diagram Abelow.Generally, most installers do not connectup an external alarm and this is why ourwiring diagrams show the orange wirebeing taped off and not used.

NOTE THAT THE OVERFLOW ALARMCIRCUIT NEVER DEACTIVATES THEPUMP WHICH REMAINS LIVE ATALL TIMES.The power supply to the pump shouldalways be connected to the incomingpower terminal block on the evaporatorto ensure that the pump is poweredwhenever the evaporator is powered.

It is not a good idea to hard wire thepump from a separate circuit, or to powerit from a receptacle like a conventionaltank pump because either of these can beinadvertently isolated or the plug could beaccidentally removed.In either case the evaporator wouldcontinue to produce water, but therewould be no power to operate the pumpor the overflow switch, so a flood would

occur and this is unacceptable.In spite of this, some local codes actuallycall for this type of wiring connection andif local code officials insist, thisrequirement will have to be met eventhough it may contradict the Aspen wiringinstructions.Some codes also require a disconnectclose to the evaporator and, if this isinstalled, sometimes the pump is powereddirectly from the disconnect. In this case,it is vital that the pump is powered

from the outgoing terminals on thedisconnect, not the incoming ones,to ensure that if the evaporator isisolated, the pump will be isolatedas well.Details of this will be found indiagram B below.All manufacturers of Minisplit airconditioners use different wiring protocols,so the communications wire varies from

one unit to another, as well as from onemodel to another, and for this reason, allwiring diagrams in the installationmanuals are generic.Consult EZ-TRAP for factoryapproved wiring diagrams for allthe major manufacturers. Thesecan be found on WWW.EZTRAP.COMor WWW.ASPENPUMPSUSA.COM orcan be emailed or faxed on request.


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4/44

ASPENLIMESERIESEXTERNALLYMOUNTEDMONOBLOCPUMPSFOR

SIDEENTRYEVAPORATORINSTALLATIONS

COLUM

N1

COLUMN2

UPTO30,000

BTUs/HOUR

30,000TO60,000BTUs/HOUR

LINESET

U

PTO

UPT

O

NOELBOW

AND

UPTO

UPTO

NOELBOWAND

SIZE

3/8

&5/8

1/2&

3/4

LINESETC

OVER

3/8&5/8

1/2&3/4

LINESETCOVER

HEAD

0-26feet

26-49feet

0-26feet

26-49feet

0-26feet

26-49feet

0-49feet

0-49feet

0-49feet

115VOLT

ASP-ML-115

ASP-MAXLS-115

ASP-MLS-115

ASP-MAXLS-115

ASP-MLOEM-115

AS

P-MAXOEM-115

ASP-MAXLS-115

ASP-MAXLS-115

ASP-MAXOEM-115

230VOLT

ASP-ML-230

ASP-MAXLS-230

ASP-MLS-230

ASP-MAXLS-230

ASP-MLOEM-230

AS

P-MAXOEM-230

ASP-MAXLS-230

A

SP-MAXLS-230

ASP-MAXOEM-230

24VOLT

ASP-ML-LG24

N/A

ASP-MLS-LG24

N/A

ASP-MLOEM-LG24

N/A

N/A

N/A

N/A

ASP

ENPUMP

SELECTION

SPE

CIFICATIONS

1aboveceiling

2insidelinesetcover

3insideevaporatorcasingwhereaccesspermits

VINYLTUBE

FALSECEILING

LINESETCOVER

MINI&MAXIOR

ANGESYSTEMLOCATION

INLINERE

SERVOIR

EVAPORATOR

COIL

CONDENSATE

DRAINTRAY

BREATHERTUBE

1insideevaporator

2insidelinesetcover

VINYL

DISCHARGE

TUBE

FALSECEILING

LINESETCOVER

CONDENSATE

DRAINTRAY

EVAPORATOR

COIL

MINIAQUASYSTEMLOCATION

RESERVO

IR

INLET

TUBE

BREATHER

TUBE

ASPEN

ORANGE&AQUASERIESSPLITTYPE

PUMPS

COLUMN1

COLUMN2

UPTO24,000BTUs/HOUR

24

,000-60,000BTUs/HOUR

HEAD

0

-26feet

26-65feet

0-26feet

26-65feet

ORANGE115VOLT

AS

P-MO-115

ASP-MAXO-115

ASP-MAXO-115

ASP-MAXO-115

ORANGE230VOLT

ASP-MO-230

ASP-MAXO-230

ASP-MAXO-230

ASP-MAXO-230

ORANGE24VOLT

ASP

-MO-LG24

N/A

N

/A

N/A

AQUA115VOLT

AS

P-MA-115

N/A

N

/A

N/A

AQUA230VOLT

ASP-MA-230

N/A

N

/A

N/A

AQUA24VOLT

ASP

-MA-LG24

N/A

N

/A

N/A

Mini&

MaxiLime

Lefthand

Mini&MaxiLime

Righthand

Mini&MaxiLime

OEMKitPumpOnly

Mini&MaxiLime

KitInstalled

MiniAqua

NOTE:Pumpcapacityiscalculatedatfulldesignvoltage.Operationat

reducedvoltagewillaffectpumpperfo

rmance.Whenselecting

pumpcapacityascertain

actualinputvoltage

andA

LWAYSDESIGN

FORW

ORSTCASE

SCENA

RIO!

Mini&Maxi

Orange

ImportedandDistributedby

3KelloggCourt,Unit10,Ed

ison,NJ08817

www.eztrap.com

phone732-248-8066

fa

x732-248-8068

email:[email protected]

EZT-ASP-POO/SEL/9/07

aspen pumps operation manual

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